King County Environmental Laboratory · prepared using sample L72057-1. Since the analysis holding time had already expired by the time analysis was conducted, re-analysis was not

Department of Natural Resources and Parks Water and Land Resources Division Environmental Laboratory 322 W. Ewing Street Seattle, WA 98119-1507 206-477-7200 Fax 206-684-2395 TTY Relay: 711

Katherine Bourbonais Phone: 206.477.7112 Fax: 206.684.9123

King County Environmental Laboratory August 15, 2019 Stormwater Action Monitoring Effectiveness Studies Pilot Study for Non-Proprietary Dissolved Metals Treatment: Oyster Shell Retrofits in Catch Basins Storm samples collected July 9, 2019 L72057-1 through -4; -9 Notes:

• Inflow and outflow samples were collected at catch basins 10-109 and 10-108. • A second sample was collected at location 10-108IN

Conventionals QC Information Samples were analyzed in the following workgroups: DOC: WG16 ortho-phosphate-P: WG164830 pH: WG164768 TOC: WG165055 Total N: WG164894 Total P: WG164894 TSS: WG164823 All QC results for conventionals parameters were within laboratory control limits with these exceptions. The holding time for pH analysis is <15 minutes. Sample pH results were qualified H since analysis occurred after the holding time had expired. Also, during pH analysis, the lab duplicate (LD) relative percent difference (RPD) exceeded the control limit. The LD was prepared using sample L72057-1. Since the analysis holding time had already expired by the time analysis was conducted, re-analysis was not a desirable corrective action. The pH result for this sample was qualified J and should be considered an estimate. The filtration holding time for ortho-phosphate-P (ortho-P) analysis is <15 minutes. The holding time had expired by the time samples were delivered to the laboratory. Thus, ortho-P results for all samples were qualified H.

Field Measurements QC Information Measurements were taken within the following workgroup: Field Measurements: WG164955 All QC results for field measurements were within laboratory control limits. Metals QC Information Total and dissolved fractions for the following elements were analyzed: cadmium, calcium (total only), copper, lead, magnesium (total only) and zinc. Hardness values were calculated. Total Metals and Hardness by ICPMS WG164827 All QC results for total metals parameters were within laboratory control limits. Dissolved Metals by ICPMS WG164826 All QC results for total metals parameters were within laboratory control limits.

Sample Data

King County Environmental Lab Analytical Report

8/15/2019 K:\LPM Reports\WLRD Science Reimburasable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17855 MercerIslandOysterShellRetrofit_1stStorm_09AJUL019.xlsx Page 1 of 2

Project: 421195-181 Project: 421195-181 Project: 421195-181Locator: 10-109-IN Locator: 10-109-OUT Locator: 10-108-INDescrip: CATCH BASIN INFLOW Descrip: CATCH BASIN OUTFLO Descrip: CATCH BASIN INFLOWSample: L72057-1 Sample: L72057-2 Sample: L72057-3Matrix: LG STORM WTR Matrix: LG STORM WTR Matrix: LG STORM WTRColDate: 7/9/19 21:42 ColDate: 7/9/19 21:42 ColDate: 7/9/19 21:43WET Weight Basis WET Weight Basis WET Weight Basis

Parameters Value Qual MDL RDL Units Value Qual MDL RDL Units Value Qual MDL RDL UnitsCV SM2540-DTotal Suspended Solids 4.4 1 2 mg/L 5.31 0.52 1.04 mg/L 6.9 0.5 1 mg/LCV SM4500-H-BpH 7.63 H,J pH 7.04 H pH 7.07 H pHCV SM4500-N-CTotal Nitrogen 1.01 0.05 0.1 mg/L 0.983 0.05 0.1 mg/L 1.03 0.05 0.1 mg/LCV SM4500-P-B,FTotal Phosphorus 0.0698 0.005 0.01 mg/L 0.0724 0.005 0.01 mg/L 0.0754 0.005 0.01 mg/LCV SM4500-P-FOrthophosphate Phosphorus 0.0193 H 0.0005 0.002 mg/L 0.0194 H 0.0005 0.002 mg/L 0.0193 H 0.0005 0.002 mg/LCV SM5310-BDissolved Organic Carbon 8.41 2 4 mg/L 8.55 1 2 mg/L 9.11 1 2 mg/LTotal Organic Carbon 8.61 1 2 mg/L 8.83 1 2 mg/L 9.08 2 4 mg/LES KCEL SOP# 245Conductivity, Field 46.2 0.5 10 umhos/cm 46 0.5 10 umhos/cm 48.5 0.5 10 umhos/cmDissolved Oxygen, Field 8.6 0.5 1 mg/L 8.6 0.5 1 mg/L 8.5 0.5 1 mg/LpH, Field 6.69 pH 6.68 pH 6.88 pHSample Temperature, Field 20.7 deg C 20.7 deg C 21.5 deg CES NONESample FunctionMT EPA 200.8 (MOD)Cadmium, Dissolved, ICP-MS 0.05 <RDL 0.05 0.25 ug/L 0.061 <RDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/LCadmium, Total, ICP-MS 0.063 <RDL 0.05 0.25 ug/L 0.072 <RDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/LCalcium, Total, ICP-MS 4110 50 50 ug/L 4270 50 50 ug/L 4540 50 50 ug/LCopper, Dissolved, ICP-MS 9.72 0.2 2 ug/L 9.94 0.2 2 ug/L 10.4 0.2 2 ug/LCopper, Total, ICP-MS 11.9 0.2 2 ug/L 12 0.2 2 ug/L 13.2 0.2 2 ug/LLead, Dissolved, ICP-MS 0.49 <RDL 0.1 0.5 ug/L 0.47 <RDL 0.1 0.5 ug/L 0.47 <RDL 0.1 0.5 ug/LLead, Total, ICP-MS 1.15 0.1 0.5 ug/L 1.19 0.1 0.5 ug/L 1.2 0.1 0.5 ug/LMagnesium, Total, ICP-MS 666 50 50 ug/L 678 50 50 ug/L 684 50 50 ug/LZinc, Dissolved, ICP-MS 281 0.5 2.5 ug/L 286 0.5 2.5 ug/L 245 0.5 2.5 ug/LZinc, Total, ICP-MS 312 0.5 2.5 ug/L 313 0.5 2.5 ug/L 274 0.5 2.5 ug/LMT EPA 200.8 (MOD)*SM2340BHardness, Calc 13 0.331 0.331 mg CaCO3/L 13.5 0.331 0.331 mg CaCO3/L 14.2 0.331 0.331 mg CaCO3/L


8/15/2019 K:\LPM Reports\WLRD Science Reimburasable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17855 MercerIslandOysterShellRetrofit_1stStorm_09AJUL019.xlsx Page 2 of 2

ParametersCV SM2540-DTotal Suspended SolidsCV SM4500-H-BpHCV SM4500-N-CTotal NitrogenCV SM4500-P-B,FTotal PhosphorusCV SM4500-P-FOrthophosphate PhosphorusCV SM5310-BDissolved Organic CarbonTotal Organic CarbonES KCEL SOP# 245Conductivity, FieldDissolved Oxygen, FieldpH, FieldSample Temperature, FieldES NONESample FunctionMT EPA 200.8 (MOD)Cadmium, Dissolved, ICP-MSCadmium, Total, ICP-MSCalcium, Total, ICP-MSCopper, Dissolved, ICP-MSCopper, Total, ICP-MSLead, Dissolved, ICP-MSLead, Total, ICP-MSMagnesium, Total, ICP-MSZinc, Dissolved, ICP-MSZinc, Total, ICP-MSMT EPA 200.8 (MOD)*SM2340BHardness, Calc

Project: 421195-181 Project: 421195-181Locator: 10-108-OUT Locator: 10-108-INDescrip: CATCH BASIN OUTFLO Descrip: CATCH BASIN INFLOWSample: L72057-4 Sample: L72057-9Matrix: LG STORM WTR Matrix: LG STORM WTRColDate: 7/9/19 21:43 ColDate: 7/9/19 21:43WET Weight Basis WET Weight Basis

Value Qual MDL RDL Units Value Qual MDL RDL Units

4.63 0.53 1.05 mg/L 8.5 0.5 1 mg/L

7.12 H pH 7.11 H pH

1.04 0.05 0.1 mg/L 1.11 0.05 0.1 mg/L

0.0715 0.005 0.01 mg/L 0.0762 0.005 0.01 mg/L

0.0194 H 0.0005 0.002 mg/L 0.0193 H 0.0005 0.002 mg/L

8.56 1 2 mg/L 8.87 1 2 mg/L8.89 1 2 mg/L 9.56 1 2 mg/L

57.4 0.5 10 umhos/cm 48.5 0.5 10 umhos/cm7.6 0.5 1 mg/L 8.5 0.5 1 mg/L

7.04 pH 6.88 pH21.3 deg C 21.5 deg C

FREP none

<MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L<MDL 0.05 0.25 ug/L 0.051 <RDL 0.05 0.25 ug/L

4810 50 50 ug/L 4890 50 50 ug/L10.1 0.2 2 ug/L 10.7 0.2 2 ug/L11.7 0.2 2 ug/L 13.7 0.2 2 ug/L0.46 <RDL 0.1 0.5 ug/L 0.46 <RDL 0.1 0.5 ug/L1.06 0.1 0.5 ug/L 1.32 0.1 0.5 ug/L647 50 50 ug/L 690 50 50 ug/L254 0.5 2.5 ug/L 247 0.5 2.5 ug/L271 0.5 2.5 ug/L 280 0.5 2.5 ug/L

14.7 0.331 0.331 mg CaCO3/L 15.1 0.331 0.331 mg CaCO3/L

Quality Control Data

King County Environmental Laboratory Batch Report Mercer Island Oyster Shell Retrofit Project 09JUL2019

Page 1 of 12

WG164768 pH and Alkalinity

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 7/9/2019 21:42 7/10/2019 17:03 7/10/2019 17:03 WG164768-5,-6,-7

L72057-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 7/9/2019 21:42 7/10/2019 17:11 7/10/2019 17:11 WG164768-5,-6,-7



L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 7/9/2019 21:43 7/10/2019 17:23 7/10/2019 17:23 WG164768-5,-6,-7 FREP

L72658-1 421240A STREAMS MONITOR (surf wtr) CVALK FRESH WTR 7/9/2019 7:45 7/10/2019 13:13 7/10/2019 13:13 WG164768-1,-2,-3,-4,-8,-9













L72658-15 421240A STREAMS MONITOR (surf wtr) CVALK FRESH WTR 7/9/2019 8:17 7/10/2019 15:39 7/10/2019 15:39 WG164768-1,-2,-3,-4,-8,-9 FREP @ L72658-2












L72662-1 421874-510 City of Sammamish Monthly Stream Monitoring CVALK FRESH WTR 7/9/2019 10:20 7/10/2019 18:48 7/10/2019 18:48 WG164768-1,-2,-3,-4,-8,-9

WG164768-1 MDLCK CVALK BLANK WTR 7/10/2019 12:54 7/10/2019 12:54 WG164768-1,-2,-3,-4,-8,-9 LEVEL1

WG164768-2 LCS CVALK BLANK WTR 7/10/2019 13:01 7/10/2019 13:01 WG164768-1,-2,-3,-4,-8,-9 LEVEL3

WG164768-3 LD CVALK FRESH WTR 7/10/2019 13:44 7/10/2019 13:44 WG164768-1,-2,-3,-4,-8,-9 L72658-3



Page 2 of 12

WG164768-5 LCS CVPH BLANK WTR 7/10/2019 16:55 7/10/2019 16:55 WG164768-5,-6,-7 LEVEL1

WG164768-6 LD CVPH STORM WTR 7/10/2019 17:07 7/10/2019 17:07 WG164768-5,-6,-7 L72057-1


WG164768-8 LD CVALK FRESH WTR 7/10/2019 17:55 7/10/2019 17:55 WG164768-1,-2,-3,-4,-8,-9 L72659-7



Page 3 of 12

WG164823 TSS

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 7/9/2019 21:42 7/12/2019 9:59 7/12/2019 15:39 WG164823-2,-3,-1,-4

L72057-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 7/9/2019 21:42 7/12/2019 9:59 7/12/2019 15:40 WG164823-2,-3,-1,-4



L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 7/9/2019 21:43 7/12/2019 9:59 7/12/2019 15:41 WG164823-2,-3,-1,-4 FREP

L72399-1 421301A Georgetown Yard Industiral SW Monitoring CVTSS STORM WTR 7/10/2019 14:45 7/12/2019 9:59 7/12/2019 15:44 WG164823-2,-3,-1,-4

L72666-1 421422-CHGW SWD-CHGW Cedar Hills Groundwater Quarterly CVTSS GRND WTR 7/8/2019 9:50 7/12/2019 9:59 7/12/2019 15:42 WG164823-2,-3,-1,-4





L72702-2 421422-CHSW- SWD-CHSW P - 2 Cedar Hills Surface Water Permit 2 CVTSS STORM WTR 7/10/2019 10:45 7/12/2019 9:59 7/12/2019 15:44 WG164823-2,-3,-1,-4

WG164823-1 MB CVTSS BLANK WTR 7/12/2019 9:59 7/12/2019 15:39 WG164823-2,-3,-1,-4 MB1 190712

WG164823-2 LCS CVTSS BLANK WTR 7/12/2019 9:59 7/12/2019 15:39 WG164823-2,-3,-1,-4 LEVEL1

WG164823-3 LD CVTSS STORM WTR 7/12/2019 9:59 7/12/2019 15:40 WG164823-2,-3,-1,-4 L72057-1

WG164823-4 LD CVTSS GRND WTR 7/12/2019 9:59 7/12/2019 15:43 WG164823-2,-3,-1,-4 L72666-2


Page 4 of 12

WG164830 Dissolved Nutrients

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 7/9/2019 21:42 7/11/2019 13:45 7/11/2019 18:35 WG164830-1,-4,-2,-5,-6,-9,-10,-3,-11,-12

L72057-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 7/9/2019 21:42 7/11/2019 13:45 7/11/2019 18:37 WG164830-1,-4,-2,-5,-6,-9,-10,-3,-11,-12



L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 7/9/2019 21:43 7/11/2019 13:45 7/11/2019 19:04 WG164830-1,-4,-2,-5,-6,-9,-10,-3FREP

L72702-2 421422-CHSW- SWD-CHSW P - 2 Cedar Hills Surface Water Permit 2 CVNH3-FL STORM WTR 7/10/2019 10:45 7/11/2019 13:45 7/11/2019 14:43 WG164830-1,-2,-3,-4,-5,-6,-7,-8

L72703-1 421422-CHLS-MSWD-CHLS-M Cedar Hills Leachate Monthly CVNH3-FL LEACHATE 7/10/2019 7:42 7/11/2019 13:45 7/11/2019 14:13 WG164830-1,-2,-3,-4,-5,-6,-7,-8

L72703-1 421422-CHLS-MSWD-CHLS-M Cedar Hills Leachate Monthly CVNO23 LEACHATE 7/10/2019 7:42 7/11/2019 13:45 7/11/2019 15:12 WG164830-1,-2,-3,-4,-5,-6

L72703-1 421422-CHLS-MSWD-CHLS-M Cedar Hills Leachate Monthly CVORTHOP LEACHATE 7/10/2019 7:42 7/11/2019 13:45 7/11/2019 15:12 WG164830-1,-4,-2,-5,-6,-9,-10,-3,-11,-12













L72718-1 421430-300 OCS-Lake Haven Utility District routine testing CVORTHOP EFFLUENT 7/9/2019 7:15 7/11/2019 13:45 7/11/2019 15:31 WG164830-1,-4,-2,-5,-6,-9,-10,-3,-11,-12

L72718-3 421430-300 OCS-Lake Haven Utility District routine testing CVORTHOP EFFLUENT 7/9/2019 7:15 7/11/2019 13:45 7/11/2019 18:32 WG164830-1,-4,-2,-5,-6,-9,-10,-3,-11,-12

L72718-5 421430-300 OCS-Lake Haven Utility District routine testing CVORTHOP BLANK WTR 7/10/2019 7:10 7/11/2019 13:45 7/11/2019 19:09 WG164830-1,-4,-2,-5,-6,-9,-10,-3,-11,-12

WG164830-1 MB CVNH3-FL BLANK WTR 7/11/2019 13:45 7/11/2019 14:00 WG164830-1,-2,-3,-4,-5,-6,-7,-8 MB1 071119 13:45

WG164830-1 MB CVNO23 BLANK WTR 7/11/2019 13:45 7/11/2019 14:00 WG164830-1,-2,-3,-4,-5,-6 MB1 071119 13:45

WG164830-1 MB CVORTHOP BLANK WTR 7/11/2019 13:45 7/11/2019 14:00 WG164830-1,-4,-2,-5,-6,-9,-10,-3MB1 071119 13:45

WG164830-2 SB CVNH3-FL BLANK WTR 7/11/2019 13:45 7/11/2019 14:03 WG164830-1,-2,-3,-4,-5,-6,-7,-8 WG164830-1

WG164830-2 SB CVNO23 BLANK WTR 7/11/2019 13:45 7/11/2019 14:03 WG164830-1,-2,-3,-4,-5,-6 WG164830-1

WG164830-2 SB CVORTHOP BLANK WTR 7/11/2019 13:45 7/11/2019 14:53 WG164830-1,-4,-2,-5,-6,-9,-10,-3WG164830-1

WG164830-3 LCS CVNH3-FL BLANK WTR 7/11/2019 14:05 7/11/2019 14:05 WG164830-1,-2,-3,-4,-5,-6,-7,-8 LEVEL1

WG164830-3 LCS CVNO23 BLANK WTR 7/11/2019 14:05 7/11/2019 14:05 WG164830-1,-2,-3,-4,-5,-6 LEVEL1

WG164830-3 LCS CVORTHOP BLANK WTR 7/11/2019 14:56 7/11/2019 18:19 WG164830-1,-4,-2,-5,-6,-9,-10,-3LEVEL1

WG164830-4 MDLCK CVNH3-FL BLANK WTR 7/11/2019 13:45 7/11/2019 14:08 WG164830-1,-2,-3,-4,-5,-6,-7,-8 LEVEL1


Page 5 of 12

WG164830-4 MDLCK CVNO23 BLANK WTR 7/11/2019 13:45 7/11/2019 14:08 WG164830-1,-2,-3,-4,-5,-6 LEVEL1

WG164830-4 MDLCK CVORTHOP BLANK WTR 7/11/2019 13:45 7/11/2019 14:08 WG164830-1,-4,-2,-5,-6,-9,-10,-3LEVEL1

WG164830-5 LD CVNH3-FL LEACHATE 7/11/2019 13:45 7/11/2019 14:19 WG164830-1,-2,-3,-4,-5,-6,-7,-8 L72703-3

WG164830-5 LD CVNO23 LEACHATE 7/11/2019 13:45 7/11/2019 17:09 WG164830-1,-2,-3,-4,-5,-6 L72703-3

WG164830-5 LD CVORTHOP LEACHATE 7/11/2019 13:45 7/11/2019 15:17 WG164830-1,-4,-2,-5,-6,-9,-10,-3L72703-3

WG164830-6 MS CVNH3-FL LEACHATE 7/11/2019 13:45 7/11/2019 14:21 WG164830-1,-2,-3,-4,-5,-6,-7,-8 L72703-3

WG164830-6 MS CVNO23 LEACHATE 7/11/2019 13:45 7/11/2019 17:12 WG164830-1,-2,-3,-4,-5,-6 L72703-3

WG164830-6 MS CVORTHOP LEACHATE 7/11/2019 13:45 7/11/2019 15:20 WG164830-1,-4,-2,-5,-6,-9,-10,-3L72703-3

WG164830-7 LD CVNH3-FL STORM WTR 7/11/2019 13:45 7/11/2019 14:45 WG164830-1,-2,-3,-4,-5,-6,-7,-8 L72702-2

WG164830-8 MS CVNH3-FL STORM WTR 7/11/2019 13:45 7/11/2019 14:48 WG164830-1,-2,-3,-4,-5,-6,-7,-8 L72702-2

WG164830-9 LD CVORTHOP EFFLUENT 7/11/2019 13:45 7/11/2019 15:33 WG164830-1,-4,-2,-5,-6,-9,-10,-3L72718-1

WG164830-10 MS CVORTHOP EFFLUENT 7/11/2019 13:45 7/11/2019 15:36 WG164830-1,-4,-2,-5,-6,-9,-10,-3L72718-1

WG164830-11 LD CVORTHOP STORM WTR 7/11/2019 13:45 7/11/2019 18:40 WG164830-1,-4,-2,-5,-6,-9,-10,-3L72057-2

WG164830-12 MS CVORTHOP STORM WTR 7/11/2019 13:45 7/11/2019 18:43 WG164830-1,-4,-2,-5,-6,-9,-10,-3L72057-2


Page 6 of 12

WG164894 Total N and Total P

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 7/9/2019 21:42 7/11/2019 8:20 7/15/2019 11:46 WG164894-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16

L72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 7/9/2019 21:42 7/11/2019 8:20 7/15/2019 11:46 WG164894-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16,-1,-2,-3,-4

L72057-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 7/9/2019 21:42 7/11/2019 8:20 7/15/2019 11:48 WG164894-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16






L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 7/9/2019 21:43 7/11/2019 8:20 7/15/2019 11:57 WG164894-1,-2,-3,-4,-5,-6,-7,-8, FREP

L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 7/9/2019 21:43 7/11/2019 8:20 7/15/2019 11:57 WG164894-5,-6,-7,-8,-9,-10,-11, FREP

L72672-1 421240A STREAMS MONITOR (surf wtr) CVTOTN FRESH WTR 7/10/2019 9:07 7/11/2019 8:20 7/15/2019 12:10 WG164894-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16

L72672-1 421240A STREAMS MONITOR (surf wtr) CVTOTP FRESH WTR 7/10/2019 9:07 7/11/2019 8:20 7/15/2019 12:10 WG164894-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16,-1,-2,-3,-4























L72672-14 421240A STREAMS MONITOR (surf wtr) CVTOTN FRESH WTR 7/10/2019 14:35 7/11/2019 8:20 7/15/2019 12:39 WG164894-1,-2,-3,-4,-5,-6,-7,-8, FREP @ L72672-12


Page 7 of 12

L72672-14 421240A STREAMS MONITOR (surf wtr) CVTOTP FRESH WTR 7/10/2019 14:35 7/11/2019 8:20 7/15/2019 12:39 WG164894-5,-6,-7,-8,-9,-10,-11, FREP @ L72672-12





























L72677-1 422018-100 SWS Boise Creek Add-on to Routine Streams CVTOTN FRESH WTR 7/10/2019 10:51 7/11/2019 8:20 7/15/2019 11:33 WG164894-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16

L72677-1 422018-100 SWS Boise Creek Add-on to Routine Streams CVTOTP FRESH WTR 7/10/2019 10:51 7/11/2019 8:20 7/15/2019 11:33 WG164894-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16,-1,-2,-3,-4









Page 8 of 12








L72680-9 421240A STREAMS MONITOR (surf wtr) CVTOTN FRESH WTR 7/10/2019 13:29 7/11/2019 8:20 7/15/2019 13:09 WG164894-1,-2,-3,-4,-5,-6,-7,-8, FREP @ L72680-4

L72680-9 421240A STREAMS MONITOR (surf wtr) CVTOTP FRESH WTR 7/10/2019 13:29 7/11/2019 8:20 7/15/2019 13:09 WG164894-5,-6,-7,-8,-9,-10,-11, FREP @ L72680-4

L72681-1 421195-190 Vashon Island Surface Water CVTOTN FRESH WTR 7/10/2019 9:54 7/11/2019 8:20 7/15/2019 13:11 WG164894-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16

L72681-1 421195-190 Vashon Island Surface Water CVTOTP FRESH WTR 7/10/2019 9:54 7/11/2019 8:20 7/15/2019 13:11 WG164894-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16,-1,-2,-3,-4







WG164894-1 MB CVTOTN BLANK WTR 7/11/2019 8:20 7/15/2019 10:53 WG164894-1,-2,-3,-4,-5,-6,-7,-8, MB1 07/11/19

WG164894-1 MB CVTOTP BLANK WTR 7/11/2019 8:20 7/15/2019 10:53 WG164894-5,-6,-7,-8,-9,-10,-11, MB1 07/11/19

WG164894-2 SB CVTOTN BLANK WTR 7/11/2019 8:20 7/15/2019 10:55 WG164894-1,-2,-3,-4,-5,-6,-7,-8, WG164894-1

WG164894-2 SB CVTOTP BLANK WTR 7/11/2019 8:20 7/15/2019 10:55 WG164894-5,-6,-7,-8,-9,-10,-11, WG164894-1

WG164894-3 LCS CVTOTN BLANK WTR 7/11/2019 8:20 7/15/2019 10:57 WG164894-1,-2,-3,-4,-5,-6,-7,-8, LEVEL1

WG164894-3 LCS CVTOTP BLANK WTR 7/11/2019 8:20 7/15/2019 10:57 WG164894-5,-6,-7,-8,-9,-10,-11, LEVEL1

WG164894-4 MDLCK CVTOTN BLANK WTR 7/11/2019 8:20 7/15/2019 10:59 WG164894-1,-2,-3,-4,-5,-6,-7,-8, LEVEL1

WG164894-4 MDLCK CVTOTP BLANK WTR 7/11/2019 8:20 7/15/2019 10:59 WG164894-5,-6,-7,-8,-9,-10,-11, LEVEL1

WG164894-5 LD CVTOTN FRESH WTR 7/11/2019 8:20 7/15/2019 11:35 WG164894-1,-2,-3,-4,-5,-6,-7,-8, L72677-1

WG164894-5 LD CVTOTP FRESH WTR 7/11/2019 8:20 7/15/2019 11:35 WG164894-5,-6,-7,-8,-9,-10,-11, L72677-1

WG164894-6 MS CVTOTN FRESH WTR 7/11/2019 8:20 7/15/2019 11:44 WG164894-1,-2,-3,-4,-5,-6,-7,-8, L72677-1

WG164894-6 MS CVTOTP FRESH WTR 7/11/2019 8:20 7/15/2019 11:44 WG164894-5,-6,-7,-8,-9,-10,-11, L72677-1

WG164894-7 LD CVTOTN STORM WTR 7/11/2019 8:20 7/15/2019 11:54 WG164894-1,-2,-3,-4,-5,-6,-7,-8, L72057-4

WG164894-7 LD CVTOTP STORM WTR 7/11/2019 8:20 7/15/2019 11:54 WG164894-5,-6,-7,-8,-9,-10,-11, L72057-4

WG164894-8 MS CVTOTN STORM WTR 7/11/2019 8:20 7/15/2019 11:55 WG164894-1,-2,-3,-4,-5,-6,-7,-8, L72057-4

WG164894-8 MS CVTOTP STORM WTR 7/11/2019 8:20 7/15/2019 11:55 WG164894-5,-6,-7,-8,-9,-10,-11, L72057-4







Page 9 of 12













Page 10 of 12

WG165055 TOC and DOC

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 7/9/2019 21:42 7/10/2019 16:08 7/23/2019 20:30 WG165055-9,-10,-11,-12,-13

L72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 7/9/2019 21:42 7/23/2019 16:50 7/23/2019 16:50 WG165055-1,-2,-3,-4,-5,-6,-7,-8

L72057-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 7/9/2019 21:42 7/10/2019 16:08 7/23/2019 20:23 WG165055-9,-10,-11,-12,-13






L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 7/9/2019 21:43 7/10/2019 16:08 7/23/2019 19:59 WG165055-9,-10,-11,-12,-13 FREP

L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 7/9/2019 21:43 7/23/2019 18:03 7/23/2019 18:03 WG165055-1,-2,-3,-4,-5,-6,-7,-8 FREP

L72709-2 421422-CHGW_SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched ZoCVTOC GRND WTR 7/22/2019 10:05 7/23/2019 18:11 7/23/2019 18:11 WG165055-1,-2,-3,-4,-5,-6,-7,-8




L72770-5 421422-CHGW SWD-CHGW Cedar Hills Groundwater Quarterly CVTOC GRND WTR 7/23/2019 8:52 7/23/2019 18:33 7/23/2019 18:33 WG165055-1,-2,-3,-4,-5,-6,-7,-8

WG165055-1 MDLCK CVTOC BLANK WTR 7/23/2019 16:10 7/23/2019 16:10 WG165055-1,-2,-3,-4,-5,-6,-7,-8 LEVEL1

WG165055-2 MB CVTOC BLANK WTR 7/23/2019 16:17 7/23/2019 16:17 WG165055-1,-2,-3,-4,-5,-6,-7,-8 MB1 7/23/19

WG165055-3 SB CVTOC BLANK WTR 7/23/2019 16:26 7/23/2019 16:26 WG165055-1,-2,-3,-4,-5,-6,-7,-8 WG165055-2

WG165055-4 LCS CVTOC BLANK WTR 7/23/2019 16:33 7/23/2019 16:33 WG165055-1,-2,-3,-4,-5,-6,-7,-8 LEVEL1

WG165055-5 LD CVTOC STORM WTR 7/23/2019 17:14 7/23/2019 17:14 WG165055-1,-2,-3,-4,-5,-6,-7,-8 L72057-3

WG165055-6 MS CVTOC STORM WTR 7/23/2019 17:22 7/23/2019 17:22 WG165055-1,-2,-3,-4,-5,-6,-7,-8 L72057-3

WG165055-7 LD CVTOC GRND WTR 7/23/2019 18:47 7/23/2019 18:47 WG165055-1,-2,-3,-4,-5,-6,-7,-8 L72710-4

WG165055-8 MS CVTOC GRND WTR 7/23/2019 18:54 7/23/2019 18:54 WG165055-1,-2,-3,-4,-5,-6,-7,-8 L72710-4

WG165055-9 MB CVDOC BLANK WTR 7/23/2019 13:20 7/23/2019 19:28 WG165055-9,-10,-11,-12,-13 MB1 7/23/19

WG165055-10 SB CVDOC BLANK WTR 7/23/2019 13:20 7/23/2019 19:37 WG165055-9,-10,-11,-12,-13 WG165055-9

WG165055-11 LCS CVDOC BLANK WTR 7/23/2019 19:45 7/23/2019 19:45 WG165055-9,-10,-11,-12,-13 LEVEL1

WG165055-12 LD CVDOC STORM WTR 7/10/2019 16:08 7/23/2019 20:38 WG165055-9,-10,-11,-12,-13 L72057-1

WG165055-13 MS CVDOC STORM WTR 7/10/2019 16:08 7/23/2019 20:45 WG165055-9,-10,-11,-12,-13 L72057-1


Page 11 of 12

WG164955 Field Measurements

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 7/9/2019 21:42 7/9/2019 21:42 7/9/2019 21:42 WG164955-1,-2

L72057-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 7/9/2019 21:42 7/9/2019 21:42 7/9/2019 21:42 WG164955-1,-2



L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS STORM WTR 7/9/2019 21:43 FREP

L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 7/9/2019 21:43 7/9/2019 21:43 7/9/2019 21:43 WG164955-1,-2 FREP

WG164955-1 CS ESS-YSI-EXO BLANK WTR WG164955-1,-2 RANGE1

WG164955-2 CS ESS-YSI-EXO BLANK WTR WG164955-1,-2 RANGE1


Page 12 of 12

WG164826 Dissolved Metals byICPMS

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 7/9/2019 21:42 7/22/2019 12:00 7/23/2019 10:23 WG164826-1,-2,-3,-4

L72057-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 7/9/2019 21:42 7/22/2019 12:00 7/23/2019 10:30 WG164826-1,-2,-3,-4



L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 7/9/2019 21:43 7/22/2019 12:00 7/23/2019 10:37 WG164826-1,-2,-3,-4 FREP

WG164826-1 MB MTICPMS-DISS BLANK WTR 7/22/2019 12:00 7/23/2019 10:18 WG164826-1,-2,-3,-4 METHOD BLANK

WG164826-2 SB MTICPMS-DISS BLANK WTR 7/22/2019 12:00 7/23/2019 10:20 WG164826-1,-2,-3,-4 WG164826-1 MS-20

WG164826-3 LD MTICPMS-DISS STORM WTR 7/22/2019 12:00 7/23/2019 10:25 WG164826-1,-2,-3,-4 L72057-1 RPD-LIQ

WG164826-4 MS MTICPMS-DISS STORM WTR 7/22/2019 12:00 7/23/2019 10:27 WG164826-1,-2,-3,-4 L72057-1 MS-20

WG164827 Total Metals and Hardness by ICPMS

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMSTORM WTR 7/9/2019 21:42 7/22/2019 12:00 7/23/2019 14:23 WG164827-1,-2,-4,-5

L72057-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 7/9/2019 21:42 7/22/2019 12:00 7/23/2019 10:49 WG164827-1,-2,-4,-5

L72057-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMSTORM WTR 7/9/2019 21:42 7/22/2019 12:00 7/23/2019 14:23 WG164827-1,-2,-4,-5






L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMSTORM WTR 7/9/2019 21:43 7/22/2019 12:00 7/23/2019 14:23 WG164827-1,-2,-4,-5 FREP

L72057-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 7/9/2019 21:43 7/22/2019 12:00 7/23/2019 10:59 WG164827-1,-2,-4,-5 FREP

L72399-1 421301A Georgetown Yard Industiral SW Monitoring MTICPMS STORM WTR 7/10/2019 14:45 7/22/2019 12:00 7/23/2019 11:06 WG164827-1,-2,-4,-5

WG164827-1 MB MTHARD-ICPMBLANK WTR 7/22/2019 12:00 7/23/2019 14:23 WG164827-1,-2,-4,-5 METHOD BLANK

WG164827-1 MB MTICPMS BLANK WTR 7/22/2019 12:00 7/23/2019 10:45 WG164827-1,-2,-4,-5 METHOD BLANK

WG164827-2 SB MTHARD-ICPMBLANK WTR 7/22/2019 12:00 7/23/2019 14:23 WG164827-1,-2,-4,-5 WG164827-1 MS-20

WG164827-2 SB MTICPMS BLANK WTR 7/22/2019 12:00 7/23/2019 10:47 WG164827-1,-2,-4,-5 WG164827-1 MS-20

WG164827-4 LD MTHARD-ICPMSTORM WTR 7/22/2019 12:00 7/23/2019 14:23 WG164827-1,-2,-4,-5 L72057-9 RPD-LIQ

WG164827-4 LD MTICPMS STORM WTR 7/22/2019 12:00 7/23/2019 11:02 WG164827-1,-2,-4,-5 L72057-9 RPD-LIQ

WG164827-5 MS MTHARD-ICPMSTORM WTR 7/22/2019 12:00 7/23/2019 14:23 WG164827-1,-2,-4,-5 L72057-9 MS-20

WG164827-5 MS MTICPMS STORM WTR 7/22/2019 12:00 7/23/2019 11:04 WG164827-1,-2,-4,-5 L72057-9 MS-20

King County Environmental Laboratory QC Report Mercer Island Oyster Shell Retrofit Project 09JUL2019

Page 1 of 15

Workgroup: WG164768 pH and Alkalinity

LCS:WG164768-2 Matrix: BLANK WTR Listtype:CVALK Method:SM2320-B Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 50 48.8 98 90--110

LD:WG164768-3 L72658-3 Matrix: FRESH WTR Listtype:CVALK Method:SM2320-B Project:421240A Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 89.5 91.9 3 0--10


LCS:WG164768-5 Matrix: BLANK WTR Listtype:CVPH Method:SM4500-H-B Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitpH pH 6.86 6.91 101 98--102

LD:WG164768-6 L72057-1 Matrix: STORM WTR Listtype:CVPH Method:SM4500-H-B Project:421195-181 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value Abs. Diff Qual Lab LimitpH pH 7.63 7.16 0.47 * 0--.2

LCS:WG164768-7 Matrix: BLANK WTR Listtype:CVPH Method:SM4500-H-B Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitpH pH 6.86 6.92 101 98--102


Parameter MDL RDL Units SAMP Value LD Value Abs. Diff Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 64.9 64.7 0 0--10



Page 2 of 15

Workgroup: WG164823 TSS

MB:WG164823-1 Matrix: BLANK WTR Listtype:CVTSS Method:SM2540-D Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualTotal Suspended Solids 0.5 1 mg/L <MDL

LCS:WG164823-2 Matrix: BLANK WTR Listtype:CVTSS Method:SM2540-D Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Suspended Solids 5 10 mg/L 100 89 89 80--120

LD:WG164823-3 L72057-1 Matrix: STORM WTR Listtype:CVTSS Method:SM2540-D Project:421195-181 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Suspended Solids 1 2 mg/L 4.4 5 13 0--25

LD:WG164823-4 L72666-2 Matrix: GRND WTR Listtype:CVTSS Method:SM2540-D Project:421422-CHGW Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Suspended Solids 1 2 mg/L <MDL <MDL 0--25


Page 3 of 15

Workgroup: WG164830 Dissolved Nutrients

MB:WG164830-1 Matrix: BLANK WTR Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualAmmonia Nitrogen 0.002 0.01 mg/L <MDL

MB:WG164830-1 Matrix: BLANK WTR Listtype:CVNO23 Method:SM4500-NO3-F Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualNitrite + Nitrate Nitrogen 0.01 0.04 mg/L <MDL

MB:WG164830-1 Matrix: BLANK WTR Listtype:CVORTHOP Method:SM4500-P-F Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualOrthophosphate Phosphorus 0.0005 0.002 mg/L <MDL

SB:WG164830-2 MB:WG164830-1 Matrix: BLANK WTR Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project: Pkey:STD(Spike Blank, Method Blank)Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitAmmonia Nitrogen 0.002 0.01 mg/L <MDL 0.04 0.0368 92 80--120

SB:WG164830-2 MB:WG164830-1 Matrix: BLANK WTR Listtype:CVNO23 Method:SM4500-NO3-F Project: Pkey:STD(Spike Blank, Method Blank)Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitNitrite + Nitrate Nitrogen 0.01 0.04 mg/L <MDL 1 1.07 107 80--120

SB:WG164830-2 MB:WG164830-1 Matrix: BLANK WTR Listtype:CVORTHOP Method:SM4500-P-F Project: Pkey:STD(Spike Blank, Method Blank)Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitOrthophosphate Phosphorus 0.0005 0.002 mg/L <MDL 0.02 0.022 110 80--120

LCS:WG164830-3 Matrix: BLANK WTR Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitAmmonia Nitrogen 0.002 0.01 mg/L 0.05 0.0489 98 85--115

LCS:WG164830-3 Matrix: BLANK WTR Listtype:CVNO23 Method:SM4500-NO3-F Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitNitrite + Nitrate Nitrogen 0.01 0.04 mg/L 1 1.02 102 85--115

LCS:WG164830-3 Matrix: BLANK WTR Listtype:CVORTHOP Method:SM4500-P-F Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitOrthophosphate Phosphorus 0.0005 0.002 mg/L 0.02 0.0189 94 85--115


Page 4 of 15

LD:WG164830-5 L72703-3 Matrix: LEACHATE Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project:421422-CHLS-M Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitAmmonia Nitrogen 20 100 mg/L 390 478 20 0--20

LD:WG164830-5 L72703-3 Matrix: LEACHATE Listtype:CVNO23 Method:SM4500-NO3-F Project:421422-CHLS-M Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitNitrite + Nitrate Nitrogen 0.01 0.04 mg/L 0.031 0.032 0--20

LD:WG164830-5 L72703-3 Matrix: LEACHATE Listtype:CVORTHOP Method:SM4500-P-F Project:421422-CHLS-M Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitOrthophosphate Phosphorus 0.05 0.2 mg/L 3.56 3.51 1 0--20

MS:WG164830-6 L72703-3 Matrix: LEACHATE Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project:421422-CHLS-M Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitAmmonia Nitrogen 20 100 mg/L 390 0.04 784 98 75--125

MS:WG164830-6 L72703-3 Matrix: LEACHATE Listtype:CVNO23 Method:SM4500-NO3-F Project:421422-CHLS-M Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitNitrite + Nitrate Nitrogen 0.01 0.04 mg/L 0.031 1 0.886 86 75--125

MS:WG164830-6 L72703-3 Matrix: LEACHATE Listtype:CVORTHOP Method:SM4500-P-F Project:421422-CHLS-M Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitOrthophosphate Phosphorus 0.05 0.2 mg/L 3.56 0.02 5.51 98 75--125

LD:WG164830-7 L72702-2 Matrix: STORM WTR Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project:421422-CHSW-P2 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitAmmonia Nitrogen 0.002 0.01 mg/L 0.0277 0.026 6 0--20

MS:WG164830-8 L72702-2 Matrix: STORM WTR Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project:421422-CHSW-P2 Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitAmmonia Nitrogen 0.002 0.01 mg/L 0.0277 0.04 0.0616 85 75--125


Page 5 of 15

LD:WG164830-9 L72718-1 Matrix: EFFLUENT Listtype:CVORTHOP Method:SM4500-P-F Project:421430-300 Pkey:STD(Lab Duplicate)


MS:WG164830-10 L72718-1 Matrix: EFFLUENT Listtype:CVORTHOP Method:SM4500-P-F Project:421430-300 Pkey:STD(Matrix Spike)


LD:WG164830-11 L72057-2 Matrix: STORM WTR Listtype:CVORTHOP Method:SM4500-P-F Project:421195-181 Pkey:STD(Lab Duplicate)


MS:WG164830-12 L72057-2 Matrix: STORM WTR Listtype:CVORTHOP Method:SM4500-P-F Project:421195-181 Pkey:STD(Matrix Spike)



Page 6 of 15

Workgroup: WG164894 Total N and Total P

MB:WG164894-1 Matrix: BLANK WTR Listtype:CVTOTN Method:SM4500-N-C Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualTotal Nitrogen 0.05 0.1 mg/L <MDL

MB:WG164894-1 Matrix: BLANK WTR Listtype:CVTOTP Method:SM4500-P-B,F Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualTotal Phosphorus 0.005 0.01 mg/L <MDL

SB:WG164894-2 MB:WG164894-1 Matrix: BLANK WTR Listtype:CVTOTN Method:SM4500-N-C Project: Pkey:STD(Spike Blank, Method Blank)Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitTotal Nitrogen 0.05 0.1 mg/L <MDL 1 1.04 104 80--120

SB:WG164894-2 MB:WG164894-1 Matrix: BLANK WTR Listtype:CVTOTP Method:SM4500-P-B,F Project: Pkey:STD(Spike Blank, Method Blank)Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitTotal Phosphorus 0.005 0.01 mg/L <MDL 0.1 0.101 101 80--120

LCS:WG164894-3 Matrix: BLANK WTR Listtype:CVTOTN Method:SM4500-N-C Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Nitrogen 0.05 0.1 mg/L 1 1.01 101 85--115

LCS:WG164894-3 Matrix: BLANK WTR Listtype:CVTOTP Method:SM4500-P-B,F Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Phosphorus 0.005 0.01 mg/L 0.1 0.0974 97 85--115

LD:WG164894-5 L72677-1 Matrix: FRESH WTR Listtype:CVTOTN Method:SM4500-N-C Project:422018-100 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Nitrogen 0.05 0.1 mg/L 0.325 0.335 3 0--20

LD:WG164894-5 L72677-1 Matrix: FRESH WTR Listtype:CVTOTP Method:SM4500-P-B,F Project:422018-100 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Phosphorus 0.005 0.01 mg/L 0.032 0.0339 6 0--20

MS:WG164894-6 L72677-1 Matrix: FRESH WTR Listtype:CVTOTN Method:SM4500-N-C Project:422018-100 Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitTotal Nitrogen 0.05 0.1 mg/L 0.325 1 1.28 95 75--125


Page 7 of 15

MS:WG164894-6 L72677-1 Matrix: FRESH WTR Listtype:CVTOTP Method:SM4500-P-B,F Project:422018-100 Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitTotal Phosphorus 0.005 0.01 mg/L 0.032 0.1 0.129 96 75--125

LD:WG164894-7 L72057-4 Matrix: STORM WTR Listtype:CVTOTN Method:SM4500-N-C Project:421195-181 Pkey:STD(Lab Duplicate)


LD:WG164894-7 L72057-4 Matrix: STORM WTR Listtype:CVTOTP Method:SM4500-P-B,F Project:421195-181 Pkey:STD(Lab Duplicate)


MS:WG164894-8 L72057-4 Matrix: STORM WTR Listtype:CVTOTN Method:SM4500-N-C Project:421195-181 Pkey:STD(Matrix Spike)


MS:WG164894-8 L72057-4 Matrix: STORM WTR Listtype:CVTOTP Method:SM4500-P-B,F Project:421195-181 Pkey:STD(Matrix Spike)




LCS:WG164894-10 Matrix: BLANK WTR Listtype:CVTOTN Method:SM4500-N-C Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Nitrogen 0.05 0.1 mg/L 1 1.01 101 85--115



Page 8 of 15

LD:WG164894-11 L72680-4 Matrix: FRESH WTR Listtype:CVTOTN Method:SM4500-N-C Project:421240A Pkey:STD(Lab Duplicate)


LD:WG164894-11 L72680-4 Matrix: FRESH WTR Listtype:CVTOTP Method:SM4500-P-B,F Project:421240A Pkey:STD(Lab Duplicate)


MS:WG164894-12 L72680-4 Matrix: FRESH WTR Listtype:CVTOTN Method:SM4500-N-C Project:421240A Pkey:STD(Matrix Spike)


MS:WG164894-12 L72680-4 Matrix: FRESH WTR Listtype:CVTOTP Method:SM4500-P-B,F Project:421240A Pkey:STD(Matrix Spike)




LCS:WG164894-14 Matrix: BLANK WTR Listtype:CVTOTN Method:SM4500-N-C Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Nitrogen 0.05 0.1 mg/L 1 1 100 85--115





Page 9 of 15








Page 10 of 15

Workgroup: WG165055 TOC and DOC

MB:WG165055-2 Matrix: BLANK WTR Listtype:CVTOC Method:SM5310-B Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualTotal Organic Carbon 0.5 1 mg/L <MDL

SB:WG165055-3 MB:WG165055-2 Matrix: BLANK WTR Listtype:CVTOC Method:SM5310-B Project: Pkey:STD(Spike Blank, Method Blank)Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitTotal Organic Carbon 0.5 1 mg/L <MDL 10 9.02 90 80--120

LCS:WG165055-4 Matrix: BLANK WTR Listtype:CVTOC Method:SM5310-B Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Organic Carbon 0.5 1 mg/L 10 9.61 96 85--115

LD:WG165055-5 L72057-3 Matrix: STORM WTR Listtype:CVTOC Method:SM5310-B Project:421195-181 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Organic Carbon 2 4 mg/L 9.08 10.1 10 0--20

MS:WG165055-6 L72057-3 Matrix: STORM WTR Listtype:CVTOC Method:SM5310-B Project:421195-181 Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitTotal Organic Carbon 2 4 mg/L 9.08 40 45.8 92 75--125

LD:WG165055-7 L72710-4 Matrix: GRND WTR Listtype:CVTOC Method:SM5310-B Project:421422-CHGW_EPZ Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Organic Carbon 0.5 1 mg/L 0.51 <MDL 0--20

MS:WG165055-8 L72710-4 Matrix: GRND WTR Listtype:CVTOC Method:SM5310-B Project:421422-CHGW_EPZ Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitTotal Organic Carbon 0.5 1 mg/L 0.51 10 9.72 92 75--125

MB:WG165055-9 Matrix: BLANK WTR Listtype:CVDOC Method:SM5310-B Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualDissolved Organic Carbon 0.5 1 mg/L <MDL

SB:WG165055-10 MB:WG165055-9 Matrix: BLANK WTR Listtype:CVDOC Method:SM5310-B Project: Pkey:STD(Spike Blank, Method Blank)Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitDissolved Organic Carbon 0.5 1 mg/L <MDL 10 9.08 91 80--120


Page 11 of 15

LCS:WG165055-11 Matrix: BLANK WTR Listtype:CVDOC Method:SM5310-B Project: Pkey:STD(Lab Control Sample)Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitDissolved Organic Carbon 0.5 1 mg/L 10 9.85 99 85--115

LD:WG165055-12 L72057-1 Matrix: STORM WTR Listtype:CVDOC Method:SM5310-B Project:421195-181 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitDissolved Organic Carbon 2 4 mg/L 8.41 8.84 5 0--20

MS:WG165055-13 L72057-1 Matrix: STORM WTR Listtype:CVDOC Method:SM5310-B Project:421195-181 Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitDissolved Organic Carbon 2 4 mg/L 8.41 40 45.5 93 75--125


Page 12 of 15

Workgroup: WG164955 Field Measurements

CS:WG164955-1 Matrix: BLANK WTR Listtype:ESS-YSI-EXO Method:KCEL SOP# 245 Project: Pkey:STD(Check Standard)Parameter MDL RDL Units True Value CS Value % Rec. Qual Lab LimitConductivity, Field 0.5 10 umhos/cm 73.9 75.2 102 90--110pH, Field pH 6.86 6.78 0.08 0--.2

CS:WG164955-2 Matrix: BLANK WTR Listtype:ESS-YSI-EXO Method:KCEL SOP# 245 Project: Pkey:STD(Check Standard)Parameter MDL RDL Units True Value CS Value % Rec. Qual Lab LimitConductivity, Field 0.5 10 umhos/cm 73.9 75.2 102 90--110pH, Field pH 6.86 6.84 0.02 0--.2Barometric Pressure, Field mmHg 100.6 764.5 759.9 700--800


Page 13 of 15

Workgroup: WG164826 Dissolved Metals by ICPMS

MB:WG164826-1 Matrix: BLANK WTR Listtype:MTICPMS-DISS Method:EPA 200.8 (MOD) Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualCopper, Dissolved, ICP-MS 0.2 2 ug/L <MDLZinc, Dissolved, ICP-MS 0.5 2.5 ug/L <MDLCadmium, Dissolved, ICP-MS 0.05 0.25 ug/L <MDLLead, Dissolved, ICP-MS 0.1 0.5 ug/L <MDL

SB:WG164826-2 MB:WG164826-1 Matrix: BLANK WTR Listtype:MTICPMS-DISS Method:EPA 200.8 (MOD) Project: Pkey:STD(Spike Blank, Method Blank)Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitCopper, Dissolved, ICP-MS 0.2 2 ug/L <MDL 20 20.7 104 85--115Zinc, Dissolved, ICP-MS 0.5 2.5 ug/L <MDL 20 20.8 104 85--115Cadmium, Dissolved, ICP-MS 0.05 0.25 ug/L <MDL 20 19.4 97 85--115Lead, Dissolved, ICP-MS 0.1 0.5 ug/L <MDL 20 20.5 103 85--115

LD:WG164826-3 L72057-1 Matrix: STORM WTR Listtype:MTICPMS-DISS Method:EPA 200.8 (MOD) Project:421195-181 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitCopper, Dissolved, ICP-MS 0.2 2 ug/L 9.72 10.1 4 0--20Zinc, Dissolved, ICP-MS 0.5 2.5 ug/L 281 291 3 0--20Cadmium, Dissolved, ICP-MS 0.05 0.25 ug/L 0.05 0.055 0--20Lead, Dissolved, ICP-MS 0.1 0.5 ug/L 0.49 0.48 0--20

MS:WG164826-4 L72057-1 Matrix: STORM WTR Listtype:MTICPMS-DISS Method:EPA 200.8 (MOD) Project:421195-181 Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitCopper, Dissolved, ICP-MS 0.2 2 ug/L 9.72 20 30.7 105 75--125Zinc, Dissolved, ICP-MS 0.5 2.5 ug/L 281 20 305 4xRule 75--125Cadmium, Dissolved, ICP-MS 0.05 0.25 ug/L 0.05 20 19.4 97 75--125Lead, Dissolved, ICP-MS 0.1 0.5 ug/L 0.49 20 21.2 103 75--125


Page 14 of 15

Workgroup: WG164827 Total Metals and Hardness by ICPMS

MB:WG164827-1 Matrix: BLANK WTR Listtype:MTHARD-ICPMS Method:EPA 200.8 (MOD)*SM2340B Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualHardness, Calc 0.331 0.331 mg CaCO3/L <MDL

MB:WG164827-1 Matrix: BLANK WTR Listtype:MTICPMS Method:EPA 200.8 (MOD) Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualMagnesium, Total, ICP-MS 50 50 ug/L <MDLCalcium, Total, ICP-MS 50 50 ug/L <MDLCopper, Total, ICP-MS 0.2 2 ug/L <MDLZinc, Total, ICP-MS 0.5 2.5 ug/L <MDLCadmium, Total, ICP-MS 0.05 0.25 ug/L <MDLLead, Total, ICP-MS 0.1 0.5 ug/L <MDL

SB:WG164827-2 MB:WG164827-1 Matrix: BLANK WTR Listtype:MTHARD-ICPMS Method:EPA 200.8 (MOD)*SM2340B Project: Pkey:STD(Spike Blank, Method Blank)Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitHardness, Calc 0.331 0.331 mg CaCO3/L <MDL 33.1 34 103 85--115

SB:WG164827-2 MB:WG164827-1 Matrix: BLANK WTR Listtype:MTICPMS Method:EPA 200.8 (MOD) Project: Pkey:STD(Spike Blank, Method Blank)Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitMagnesium, Total, ICP-MS 50 50 ug/L <MDL 5000 5230 105 85--115Calcium, Total, ICP-MS 50 50 ug/L <MDL 5000 5010 100 85--115Copper, Total, ICP-MS 0.2 2 ug/L <MDL 20 21.1 105 85--115Zinc, Total, ICP-MS 0.5 2.5 ug/L <MDL 20 21.4 107 85--115Cadmium, Total, ICP-MS 0.05 0.25 ug/L <MDL 20 19.4 97 85--115Lead, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 20.7 103 85--115

LD:WG164827-4 L72057-9 Matrix: STORM WTR Listtype:MTHARD-ICPMS Method:EPA 200.8 (MOD)*SM2340B Project:421195-181 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitHardness, Calc 0.331 0.331 mg CaCO3/L 15.1 14.6 3 0--20

LD:WG164827-4 L72057-9 Matrix: STORM WTR Listtype:MTICPMS Method:EPA 200.8 (MOD) Project:421195-181 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitMagnesium, Total, ICP-MS 50 50 ug/L 690 698 1 0--20Calcium, Total, ICP-MS 50 50 ug/L 4890 4700 4 0--20Copper, Total, ICP-MS 0.2 2 ug/L 13.7 14 2 0--20Zinc, Total, ICP-MS 0.5 2.5 ug/L 280 282 1 0--20Cadmium, Total, ICP-MS 0.05 0.25 ug/L 0.051 0.052 0--20Lead, Total, ICP-MS 0.1 0.5 ug/L 1.32 1.28 3 0--20


Page 15 of 15

MS:WG164827-5 L72057-9 Matrix: STORM WTR Listtype:MTHARD-ICPMS Method:EPA 200.8 (MOD)*SM2340B Project:421195-181 Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitHardness, Calc 0.331 0.331 mg CaCO3/L 15.1 33.1 48.7 102 75--125

MS:WG164827-5 L72057-9 Matrix: STORM WTR Listtype:MTICPMS Method:EPA 200.8 (MOD) Project:421195-181 Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitMagnesium, Total, ICP-MS 50 50 ug/L 690 5000 5880 104 75--125Calcium, Total, ICP-MS 50 50 ug/L 4890 5000 9790 98 75--125Copper, Total, ICP-MS 0.2 2 ug/L 13.7 20 35 107 75--125Zinc, Total, ICP-MS 0.5 2.5 ug/L 280 20 299 4xRule 75--125Cadmium, Total, ICP-MS 0.05 0.25 ug/L 0.051 20 19.4 97 75--125Lead, Total, ICP-MS 0.1 0.5 ug/L 1.32 20 22.3 105 75--125

======================================================================================If the following parameters are reported, values in the RPD column are actually Absolute Differences: pH, Field Salinity, Field Sample Depth Sample Temperature, Field4xRule indicates no MS/MSD recovery was calculated due to the 4x rule.

Sample Receipt and Chain of Custody Records



King County Environmental Laboratory January 21, 2020 REVISED REPORT Stormwater Action Monitoring Effectiveness Studies Pilot Study for Non-Proprietary Dissolved Metals Treatment: Oyster Shell Retrofits in Catch Basins Storm samples collected October 16, 2019 L72817-5 through -9 Notes:

• Inflow and outflow samples were collected at catch basins 10-365 and 10-647. • A second sample was collected at location 10-647-IN • There was initially some confusion about the proper naming of sampling locations, and

some samples were initially assigned incorrect locators. 10-365-IN and 10-365-OUT were erroneously used for samples collected at 10-647–IN and 10-647-OUT; and vice versa. These incorrect locator assignments have been corrected, and the data report re-run. Data included in this revised report is now associated with the correct locators.

• Field observations noted no clogging or sediment buildup in the catch basins. As there was no flow when samples were collected, field measurement of sample temperature, conductivity, pH and dissolved oxygen was not done. A Stedia Rod was used for sediment depth measurements.

Conventionals QC Information Samples were analyzed in the following workgroups: DOC: WG167083 ortho-phosphate-P: WG166860 pH: WG166834 TOC: WG167083 Total N: WG167017 Total P: WG167017 TSS: WG166878 All QC results for conventionals parameters were within laboratory control limits with these exceptions. The holding time for pH analysis is <15 minutes. All sample pH results were qualified H since analysis occurred after the holding time had expired.

During Total P analysis, the lab duplicate (LD) relative percent difference (RPD) exceeded the control limit. The LD was prepared using a sample collected for another project, and therefore not directly relevant to samples discussed herein. Total P results for these samples were not qualified. The filtration holding time for ortho-phosphate-P (ortho-P) analysis is <15 minutes. The holding time had expired by the time samples were delivered to the laboratory. Thus, ortho-P results for all samples were qualified H. Field Measurements QC Information Measurements were not made due to no flow in the catch basins. Metals QC Information Total and dissolved fractions for the following elements were analyzed: cadmium, calcium (total only), copper, lead, magnesium (total only) and zinc. Hardness values were calculated. Total Metals and Hardness by ICPMS WG166938 All QC results for total metals parameters were within laboratory control limits. Dissolved Metals by ICPMS WG166939 All QC results for total metals parameters were within laboratory control limits.

Sample Data


1/23/2020 K:\LPM Reports\WLRD Science Reimbursable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17950 MercerIslandOysterShellRetrofit_2ndStorm_16OCT2019_Rev1 Page 1 of 2


Parameters Value Qual MDL RDL Units Value Qual MDL RDL Units Value Qual MDL RDL UnitsCV SM2540-DTotal Suspended Solids 8.11 0.53 1.05 mg/L 9 1 2 mg/L 11.2 1 2 mg/LCV SM4500-H-BpH 7.23 H pH 7.26 H pH 7.09 H pHCV SM4500-N-CTotal Nitrogen 1.67 0.05 0.1 mg/L 1.64 0.05 0.1 mg/L 1.66 0.05 0.1 mg/LCV SM4500-P-B,FTotal Phosphorus 0.177 0.005 0.01 mg/L 0.175 0.005 0.01 mg/L 0.178 0.005 0.01 mg/LCV SM4500-P-FOrthophosphate Phosphorus 0.131 H 0.005 0.02 mg/L 0.131 H 0.005 0.02 mg/L 0.12 H 0.005 0.02 mg/LCV SM5310-BDissolved Organic Carbon 7.59 1 2 mg/L 7.79 1 2 mg/L 7.77 1 2 mg/LTotal Organic Carbon 8.58 2.5 5 mg/L 8.5 2.5 5 mg/L 8.7 2.5 5 mg/LES KCEL SOP# 245Conductivity, Field TA 0.5 10 umhos/cm TA 0.5 10 umhos/cm TA 0.5 10 umhos/cmDissolved Oxygen, Field TA 0.5 1 mg/L TA 0.5 1 mg/L TA 0.5 1 mg/LpH, Field pH pH pHSample Temperature, Field deg C deg C deg CES NONESample FunctionMT EPA 200.8 (MOD)Cadmium, Dissolved, ICP-MS <MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/LCadmium, Total, ICP-MS <MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/LCalcium, Total, ICP-MS 7380 50 50 ug/L 7530 50 50 ug/L 4620 50 50 ug/LCopper, Dissolved, ICP-MS 10.8 0.2 2 ug/L 11.7 0.2 2 ug/L 11 0.2 2 ug/LCopper, Total, ICP-MS 17.3 0.2 2 ug/L 17.5 0.2 2 ug/L 17 0.2 2 ug/LLead, Dissolved, ICP-MS 0.23 <RDL 0.1 0.5 ug/L 0.32 <RDL 0.1 0.5 ug/L 0.37 <RDL 0.1 0.5 ug/LLead, Total, ICP-MS 1.32 0.1 0.5 ug/L 1.3 0.1 0.5 ug/L 1.52 0.1 0.5 ug/LMagnesium, Total, ICP-MS 2720 50 50 ug/L 2740 50 50 ug/L 1120 50 50 ug/LZinc, Dissolved, ICP-MS 49.2 0.5 2.5 ug/L 49.5 0.5 2.5 ug/L 51.9 0.5 2.5 ug/LZinc, Total, ICP-MS 67.3 0.5 2.5 ug/L 67.7 0.5 2.5 ug/L 71.6 0.5 2.5 ug/LMT EPA 200.8 (MOD)*SM2340BHardness, Calc 29.6 0.331 0.331 mg CaCO3/L 30.1 0.331 0.331 mg CaCO3/L 16.1 0.331 0.331 mg CaCO3/L


1/23/2020 K:\LPM Reports\WLRD Science Reimbursable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17950 MercerIslandOysterShellRetrofit_2ndStorm_16OCT2019_Rev1 Page 2 of 2


Project: 421195-181 Project: 421195-181Locator: 10-365-OUT Locator: 10-647-INDescrip: CATCH BASIN OUTFLO Descrip: CATCH BASIN INFLOWSample: L72817-8 Sample: L72817-9Matrix: LG STORM WTR Matrix: LG STORM WTRColDate: 10/16/19 10:43 ColDate: 10/16/19 10:31WET Weight Basis WET Weight Basis

Value Qual MDL RDL Units Value Qual MDL RDL Units

17.4 1 2 mg/L 8.8 1 2 mg/L

7.06 H pH 7.33 H pH

1.72 0.05 0.1 mg/L 1.64 0.05 0.1 mg/L

0.194 0.005 0.01 mg/L 0.177 0.005 0.01 mg/L

0.127 H 0.005 0.02 mg/L 0.132 H 0.005 0.02 mg/L

7.76 1 2 mg/L 7.73 1 2 mg/L9.96 2.5 5 mg/L 8.67 2.5 5 mg/L

TA 0.5 10 umhos/cm TA 0.5 10 umhos/cmTA 0.5 1 mg/L TA 0.5 1 mg/L

pH pHdeg C deg C

FREP @ L72817-5 none

<MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L<MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L

4790 50 50 ug/L 7320 50 50 ug/L11.1 0.2 2 ug/L 11.4 0.2 2 ug/L17.7 0.2 2 ug/L 17.5 0.2 2 ug/L

0.501 0.1 0.5 ug/L 0.26 <RDL 0.1 0.5 ug/L1.81 0.1 0.5 ug/L 1.42 0.1 0.5 ug/L1130 50 50 ug/L 2770 50 50 ug/L52.7 0.5 2.5 ug/L 50.2 0.5 2.5 ug/L78.1 0.5 2.5 ug/L 68.3 0.5 2.5 ug/L

16.6 0.331 0.331 mg CaCO3/L 29.7 0.331 0.331 mg CaCO3/L

King County Environmental Lab Analytical MATRIX Report

1/23/2020 K:\LPM Reports\WLRD Science Reimbursable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17950 MercerIslandOysterShellRetrofit_2ndStorm_16OCT2019_matrix_Rev1 Page 1 of 2

Owner: SEEDPAKMatrix Class: LIQUIDUser select: WET Weight Basis

Tota

l Sus

pend

ed S

olid

s

pH Tota

l Nitr

ogen

Tota

l Pho

spho

rus

Ort

hoph

osph

ate

Phos

phor

us

Dis

solv

ed O

rgan

ic C

arbo

n

Tota

l Org

anic

Car

bon

Con

duct

ivity

, Fie

ld

Dis

solv

ed O

xyge

n, F

ield

Sam

ple

Tem

pera

ture

, Fie

ld

pH, F

ield

Cad

miu

m, D

isso

lved

, IC

P-M

S

Cad

miu

m, T

otal

, IC

P-M

S

Cal

cium

, Tot

al, I

CP-

MS

Cop

per,

Dis

solv

ed, I

CP-

MS

Cop

per,

Tota

l, IC

P-M

S

Lead

, Dis

solv

ed, I

CP-

MS

Lead

, Tot

al, I

CP-

MS

LOCATOR PROJECT SAMPLE COLLECTED mg/L pH mg/L mg/L mg/L mg/L mg/L umhos/cm mg/L deg C pH ug/L ug/L ug/L ug/L ug/L ug/L ug/L10-647-IN 421195-181 L72817-5 10/16/2019 10:31 8.11 7.23 1.67 0.177 0.131 7.59 8.58 7380 10.8 17.3 0.23 1.3210-647-OUT 421195-181 L72817-6 10/16/2019 10:29 9 7.26 1.64 0.175 0.131 7.79 8.5 7530 11.7 17.5 0.32 1.310-365-IN 421195-181 L72817-7 10/16/2019 10:45 11.2 7.09 1.66 0.178 0.12 7.77 8.7 4620 11 17 0.37 1.5210-365-OUT 421195-181 L72817-8 10/16/2019 10:43 17.4 7.06 1.72 0.194 0.127 7.76 9.96 4790 11.1 17.7 0.501 1.8110-647-IN 421195-181 L72817-9 10/16/2019 10:31 8.8 7.33 1.64 0.177 0.132 7.73 8.67 7320 11.4 17.5 0.26 1.42* Not converted to dry weight basisIf a parameter/analyte appears twice in the column header, it implies that they were analyzed by two different method codes


1/23/2020 K:\LPM Reports\WLRD Science Reimbursable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17950 MercerIslandOysterShellRetrofit_2ndStorm_16OCT2019_matrix_Rev1 Page 2 of 2


LOCATOR PROJECT SAMPLE COLLECTED10-647-IN 421195-181 L72817-5 10/16/2019 10:3110-647-OUT 421195-181 L72817-6 10/16/2019 10:2910-365-IN 421195-181 L72817-7 10/16/2019 10:4510-365-OUT 421195-181 L72817-8 10/16/2019 10:4310-647-IN 421195-181 L72817-9 10/16/2019 10:31* Not converted to dry weight basisIf a parameter/analyte appears twice in the column header, it im

Mag

nesi

um, T

otal

, IC

P-M

S

Zinc

, Dis

solv

ed, I

CP-

MS

Zinc

, Tot

al, I

CP-

MS

Har

dnes

s, C

alc

Sam

ple

Func

tion

ug/L ug/L ug/L mg CaCO3/L none2720 49.2 67.3 29.62740 49.5 67.7 30.11120 51.9 71.6 16.11130 52.7 78.1 16.62770 50.2 68.3 29.7


King County Environmental Laboratory Batch Report Mercer Island Oyster Shell Retrofit Project 2nd Storm 16OCT2019

Page 1 of 10

WG166834 pH and Alkalinity





L72817-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 10/16/2019 10:31 10/17/2019 15:13 10/17/2019 15:13 WG166834-1,-2,-3 FREP @ L72817-5

L73395-1 421240A STREAMS MONITOR (surf wtr) CVALK FRESH WTR 10/16/2019 9:24 10/17/2019 15:42 10/17/2019 15:42 WG166834-9,-10,-11,-8,-4,-5,-6,-7


























L73396-16 421240A STREAMS MONITOR (surf wtr) CVALK FRESH WTR 10/16/2019 8:34 10/17/2019 19:32 10/17/2019 19:32 WG166834-9,-10,-11,-8,-4,-5,-6,-7 FREP @ L73396-3

L73397-1 422018-100 SWS Boise Creek Add-on to Routine Streams CVALK FRESH WTR 10/16/2019 9:38 10/17/2019 19:39 10/17/2019 19:39 WG166834-9,-10,-11,-8,-4,-5,-6,-7








L73398-9 421240A STREAMS MONITOR (surf wtr) CVALK FRESH WTR 10/16/2019 11:18 10/17/2019 20:48 10/17/2019 20:48 WG166834-9,-10,-11,-8,-4,-5,-6,-7 FREP @ L73398-7


Page 2 of 10

L73399-1 421195-190 Vashon Island Surface Water CVALK FRESH WTR 10/16/2019 9:11 10/17/2019 20:56 10/17/2019 20:56 WG166834-9,-10,-11,-8,-4,-5,-6,-7







WG166834-4 MDLCK CVALK BLANK WTR 10/17/2019 15:25 10/17/2019 15:25 WG166834-9,-10,-11,-8,-4,-5,-6,-7 LEVEL1

WG166834-5 LCS CVALK BLANK WTR 10/17/2019 15:33 10/17/2019 15:33 WG166834-9,-10,-11,-8,-4,-5,-6,-7 LEVEL3

WG166834-6 LD CVALK FRESH WTR 10/17/2019 18:28 10/17/2019 18:28 WG166834-9,-10,-11,-8,-4,-5,-6,-7 L73396-8


WG166834-8 LD CVALK FRESH WTR 10/17/2019 19:55 10/17/2019 19:55 WG166834-9,-10,-11,-8,-4,-5,-6,-7 L73398-1





Page 3 of 10

WG166860 ortho-Phosphate-P

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72817-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 10/16/2019 10:31 10/17/2019 14:00 10/17/2019 14:46 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8

L72817-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 10/16/2019 10:29 10/17/2019 14:00 10/17/2019 14:49 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8



L72817-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 10/16/2019 10:31 10/17/2019 14:00 10/17/2019 15:18 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 FREP @ L72817-5

L73421-1 421430-300 OCS-Lake Haven Utility District routine testing CVORTHOP EFFLUENT 10/9/2019 7:15 10/17/2019 12:00 10/17/2019 12:15 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8

L73421-3 421430-300 OCS-Lake Haven Utility District routine testing CVORTHOP EFFLUENT 10/9/2019 7:15 10/17/2019 12:00 10/17/2019 12:18 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8

L73421-5 421430-300 OCS-Lake Haven Utility District routine testing CVORTHOP BLANK WTR 10/10/2019 0:00 10/17/2019 12:00 10/17/2019 12:12 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8

L73435-1 421422-CHLS-M SWD-CHLS-M Cedar Hills Leachate Monthly CVORTHOP LEACHATE 10/8/2019 7:45 10/17/2019 12:00 10/17/2019 15:21 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8




WG166860-1 MB CVORTHOP BLANK WTR 10/17/2019 12:00 10/17/2019 12:02 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 MB5 101719 12:00

WG166860-2 SB CVORTHOP BLANK WTR 10/17/2019 12:00 10/17/2019 12:04 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 WG166860-1

WG166860-3 LCS CVORTHOP BLANK WTR 10/17/2019 12:07 10/17/2019 12:07 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 LEVEL1

WG166860-4 MDLCK CVORTHOP BLANK WTR 10/17/2019 12:00 10/17/2019 12:10 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 LEVEL1

WG166860-5 LD CVORTHOP EFFLUENT 10/17/2019 12:00 10/17/2019 12:20 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 L73421-3

WG166860-6 MS CVORTHOP EFFLUENT 10/17/2019 12:00 10/17/2019 12:23 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 L73421-3

WG166860-7 LD CVORTHOP LEACHATE 10/17/2019 12:00 10/17/2019 15:24 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 L73435-1

WG166860-8 MS CVORTHOP LEACHATE 10/17/2019 12:00 10/17/2019 15:26 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 L73435-1

WG166860-9 MB CVORTHOP BLANK WTR 10/17/2019 14:00 10/17/2019 15:05 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 MB6 101719 14:00

WG166860-10 LD CVORTHOP STORM WTR 10/17/2019 14:00 10/17/2019 14:52 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 L72817-6

WG166860-11 MS CVORTHOP STORM WTR 10/17/2019 14:00 10/17/2019 15:08 WG166860-1,-2,-3,-4,-5,-6,-10,-9,-11,-7,-8 L72817-6


Page 4 of 10

WG166878 TSS

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72817-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 10/16/2019 10:31 10/21/2019 11:07 10/21/2019 13:58 WG166878-1,-2,-3,-4




L72817-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 10/16/2019 10:31 10/21/2019 11:07 10/21/2019 14:00 WG166878-1,-2,-3,-4 FREP @ L72817-5









WG166878-1 MB CVTSS BLANK WTR 10/21/2019 11:07 10/21/2019 13:58 WG166878-1,-2,-3,-4 MB1 191021

WG166878-2 LCS CVTSS BLANK WTR 10/21/2019 11:07 10/21/2019 13:58 WG166878-1,-2,-3,-4 LEVEL1

WG166878-3 LD CVTSS STORM WTR 10/21/2019 11:07 10/22/2019 10:22 WG166878-1,-2,-3,-4 L72817-6

WG166878-4 LD CVTSS GRND WTR 10/21/2019 11:07 10/21/2019 14:02 WG166878-1,-2,-3,-4 L73451-8


Page 5 of 10


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72817-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 10/16/2019 10:31 10/22/2019 8:34 10/22/2019 14:43 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12

L72817-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 10/16/2019 10:31 10/22/2019 8:34 10/22/2019 14:43 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12

L72817-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 10/16/2019 10:29 10/22/2019 8:34 10/22/2019 14:45 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12






L72817-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 10/16/2019 10:31 10/22/2019 8:34 10/22/2019 14:54 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 FREP @ L72817-5

L72817-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 10/16/2019 10:31 10/22/2019 8:34 10/22/2019 14:54 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 FREP @ L72817-5

L73300-1 421195-130 Volunteer Lakes City CVTOTN FRESH WTR 10/21/2019 0:00 10/22/2019 8:34 10/22/2019 13:02 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12

L73300-1 421195-130 Volunteer Lakes City CVTOTP FRESH WTR 10/21/2019 0:00 10/22/2019 8:34 10/22/2019 13:02 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12





















L73301-1 422030 Rural Small Lakes CVTOTN FRESH WTR 10/20/2019 0:00 10/22/2019 8:34 10/22/2019 13:33 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12

L73301-1 422030 Rural Small Lakes CVTOTP FRESH WTR 10/20/2019 0:00 10/22/2019 8:34 10/22/2019 13:33 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12









Page 6 of 10




































WG167017-1 MB CVTOTN BLANK WTR 10/22/2019 8:34 10/22/2019 12:55 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 MB1 10/22/19

WG167017-1 MB CVTOTP BLANK WTR 10/22/2019 8:34 10/22/2019 12:55 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 MB1 10/22/19

WG167017-2 SB CVTOTN BLANK WTR 10/22/2019 8:34 10/22/2019 12:57 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 WG167017-1

WG167017-2 SB CVTOTP BLANK WTR 10/22/2019 8:34 10/22/2019 12:57 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 WG167017-1

WG167017-3 LCS CVTOTN BLANK WTR 10/22/2019 8:34 10/22/2019 12:59 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 LEVEL1

WG167017-3 LCS CVTOTP BLANK WTR 10/22/2019 8:34 10/22/2019 12:59 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 LEVEL1

WG167017-4 MDLCK CVTOTN BLANK WTR 10/22/2019 8:34 10/22/2019 13:00 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 LEVEL1

WG167017-4 MDLCK CVTOTP BLANK WTR 10/22/2019 8:34 10/22/2019 13:00 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 LEVEL1

WG167017-5 LD CVTOTN FRESH WTR 10/22/2019 8:34 10/22/2019 13:26 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73300-9


Page 7 of 10

WG167017-5 LD CVTOTP FRESH WTR 10/22/2019 8:34 10/22/2019 13:26 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73300-9

WG167017-6 MS CVTOTN FRESH WTR 10/22/2019 8:34 10/22/2019 13:28 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73300-9

WG167017-6 MS CVTOTP FRESH WTR 10/22/2019 8:34 10/22/2019 13:28 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73300-9

WG167017-7 MB CVTOTN BLANK WTR 10/22/2019 8:34 10/22/2019 13:57 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 MB2 10/22/19

WG167017-7 MB CVTOTP BLANK WTR 10/22/2019 8:34 10/22/2019 13:57 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 MB2 10/22/19

WG167017-8 LCS CVTOTN BLANK WTR 10/22/2019 8:34 10/22/2019 13:59 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 LEVEL1

WG167017-8 LCS CVTOTP BLANK WTR 10/22/2019 8:34 10/22/2019 13:59 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 LEVEL1

WG167017-9 LD CVTOTN FRESH WTR 10/22/2019 8:34 10/22/2019 14:14 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73301-14

WG167017-9 LD CVTOTP FRESH WTR 10/22/2019 8:34 10/22/2019 14:14 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73301-14

WG167017-10 MS CVTOTN FRESH WTR 10/22/2019 8:34 10/22/2019 14:16 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73301-14

WG167017-10 MS CVTOTP FRESH WTR 10/22/2019 8:34 10/22/2019 14:16 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73301-14

WG167017-11 LD CVTOTN STORM WTR 10/22/2019 8:34 10/22/2019 14:49 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L72817-7

WG167017-11 LD CVTOTP STORM WTR 10/22/2019 8:34 10/22/2019 14:49 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L72817-7

WG167017-12 MS CVTOTN STORM WTR 10/22/2019 8:34 10/22/2019 14:50 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L72817-7

WG167017-12 MS CVTOTP STORM WTR 10/22/2019 8:34 10/22/2019 14:50 WG167017-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L72817-7


Page 8 of 10

WG167083 TOC and DOC

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72817-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 10/16/2019 10:31 10/17/2019 14:00 10/31/2019 13:27 WG167083-9,-10,-11,-12,-13








L72817-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 10/16/2019 10:31 10/17/2019 14:00 10/31/2019 16:00 WG167083-9,-10,-11,-12,-13 FREP @ L72817-5

L72817-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 10/16/2019 10:31 10/31/2019 9:51 10/31/2019 9:51 WG167083-1,-2,-3,-4,-5,-6,-7,-8 FREP @ L72817-5






L73516-1 421422-CFGW SWD-CFGW Cedar Falls Groundwater Quarterly CVTOC GRND WTR 10/24/2019 12:00 10/31/2019 2:41 10/31/2019 2:41 WG167083-1,-2,-3,-4,-5,-6,-7,-8


















WG167083-9 MB CVDOC BLANK WTR 10/17/2019 14:00 10/31/2019 12:11 WG167083-9,-10,-11,-12,-13 MB1 10/17/19

WG167083-10 SB CVDOC BLANK WTR 10/17/2019 14:00 10/31/2019 12:36 WG167083-9,-10,-11,-12,-13 WG167083-9

WG167083-11 LCS CVDOC BLANK WTR 10/31/2019 13:01 10/31/2019 13:01 WG167083-9,-10,-11,-12,-13 LEVEL1

WG167083-12 LD CVDOC STORM WTR 10/17/2019 14:00 10/31/2019 14:43 WG167083-9,-10,-11,-12,-13 L72817-7

WG167083-13 MS CVDOC STORM WTR 10/17/2019 14:00 10/31/2019 15:09 WG167083-9,-10,-11,-12,-13 L72817-7


Page 9 of 10


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72817-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 10/16/2019 10:31 10/23/2019 6:10 11/4/2019 8:11 WG166938-1,-2,-3,-4


L72817-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 10/16/2019 10:29 10/23/2019 6:10 11/4/2019 8:11 WG166938-1,-2,-3,-4






L72817-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 10/16/2019 10:31 10/23/2019 6:10 11/4/2019 8:11 WG166938-1,-2,-3,-4 FREP @ L72817-5

L72817-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 10/16/2019 10:31 10/23/2019 6:10 10/29/2019 16:08 WG166938-1,-2,-3,-4 FREP @ L72817-5

L73115-1 421195-260 Ravensdale Monthly GW MTICPMS GRND WTR 10/14/2019 9:30 10/23/2019 6:10 10/29/2019 16:12 WG166938-1,-2,-3,-4

L73442-1 421186B RTP INPLNT 3 DAY INT (inf,eff,sl) MTHARD-ICPMS INFLUENT 10/8/2019 8:29 10/23/2019 6:10 11/4/2019 8:11 WG166938-1,-2,-3,-4

L73442-1 421186B RTP INPLNT 3 DAY INT (inf,eff,sl) MTICPMS INFLUENT 10/8/2019 8:29 10/23/2019 6:10 10/29/2019 16:16 WG166938-1,-2,-3,-4

L73442-3 421186B RTP INPLNT 3 DAY INT (inf,eff,sl) MTHARD-ICPMS EFFLUENT 10/8/2019 8:50 10/23/2019 6:10 11/4/2019 8:11 WG166938-1,-2,-3,-4

L73442-3 421186B RTP INPLNT 3 DAY INT (inf,eff,sl) MTICPMS EFFLUENT 10/8/2019 8:50 10/23/2019 6:10 10/29/2019 16:19 WG166938-1,-2,-3,-4

L73442-5 421186B RTP INPLNT 3 DAY INT (inf,eff,sl) MTHARD-ICPMS EFFLUENT 10/8/2019 9:08 10/23/2019 6:10 11/4/2019 8:11 WG166938-1,-2,-3,-4

L73442-5 421186B RTP INPLNT 3 DAY INT (inf,eff,sl) MTICPMS EFFLUENT 10/8/2019 9:08 10/23/2019 6:10 10/29/2019 16:30 WG166938-1,-2,-3,-4

L73445-1 421301A Georgetown Yard Industiral SW Monitoring MTICPMS STORM WTR 10/8/2019 13:03 10/23/2019 6:10 10/29/2019 16:41 WG166938-1,-2,-3,-4

WG166938-1 MB MTHARD-ICPMS BLANK WTR 10/23/2019 6:10 11/4/2019 8:11 WG166938-1,-2,-3,-4 METHOD BLANK

WG166938-1 MB MTICPMS BLANK WTR 10/23/2019 6:10 10/29/2019 15:46 WG166938-1,-2,-3,-4 METHOD BLANK

WG166938-2 SB MTHARD-ICPMS BLANK WTR 10/23/2019 6:10 11/4/2019 8:11 WG166938-1,-2,-3,-4 WG166938-1 MS-20

WG166938-2 SB MTICPMS BLANK WTR 10/23/2019 6:10 10/29/2019 15:50 WG166938-1,-2,-3,-4 WG166938-1 MS-20

WG166938-3 MS MTHARD-ICPMS EFFLUENT 10/23/2019 6:10 11/4/2019 8:11 WG166938-1,-2,-3,-4 L73442-5 MS-20

WG166938-3 MS MTICPMS EFFLUENT 10/23/2019 6:10 10/29/2019 16:34 WG166938-1,-2,-3,-4 L73442-5 MS-20

WG166938-4 MSD MTHARD-ICPMS EFFLUENT 10/23/2019 6:10 11/4/2019 8:11 WG166938-1,-2,-3,-4 WG166938-3 L73442-5 MS-20

WG166938-4 MSD MTICPMS EFFLUENT 10/23/2019 6:10 10/29/2019 16:38 WG166938-1,-2,-3,-4 WG166938-3 L73442-5 MS-20


Page 10 of 10

WG166939 Dissolved Metals by ICPMS

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72817-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 10/16/2019 10:31 10/23/2019 6:30 10/29/2019 16:52 WG166939-1,-2,-3,-4




L72817-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 10/16/2019 10:31 10/23/2019 6:30 10/29/2019 17:22 WG166939-1,-2,-3,-4 FREP @ L72817-5




WG166939-4 MSD MTICPMS-DISS STORM WTR 10/23/2019 6:30 10/29/2019 17:00 WG166939-1,-2,-3,-4 WG166939-3 L72817-5 MS-20

King County Environmental Laboratory QC Report Mercer Island Oyster Shell Retrofit Project 2nd Storm 16OCT2019

Page 1 of 13

Workgroup: WG166834 pH and Alkalinity

LCS:WG166834-1 Matrix: BLANK WTR Listtype:CVPH Method:SM4500-H-B Project: Pkey:STD(Lab Control Sample)

Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitpH pH 6.86 6.85 100 98--102


Parameter MDL RDL Units SAMP Value LD Value Abs. Diff Qual Lab LimitpH pH 7.26 7.28 0.02 0--.2



LCS:WG166834-5 Matrix: BLANK WTR Listtype:CVALK Method:SM2320-B Project: Pkey:STD(Lab Control Sample)

Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 50 47.7 95 90--110


Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 205 205 0 0--10






Page 2 of 13






Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 250 245 98 90--110


Page 3 of 13

Workgroup: WG166860 ortho-Phosphate-P


SB:WG166860-2 MB:WG166860-1 Matrix: BLANK WTR Listtype:CVORTHOP Method:SM4500-P-F Project: Pkey:STD(Spike Blank, Method Blank)

Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitOrthophosphate Phosphorus 0.0005 0.002 mg/L <MDL 0.02 0.0231 116 80--120

LCS:WG166860-3 Matrix: BLANK WTR Listtype:CVORTHOP Method:SM4500-P-F Project: Pkey:STD(Lab Control Sample)

Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitOrthophosphate Phosphorus 0.0005 0.002 mg/L 0.02 0.0192 96 85--115

LD:WG166860-5 L73421-3 Matrix: EFFLUENT Listtype:CVORTHOP Method:SM4500-P-F Project:421430-300 Pkey:STD(Lab Duplicate)


MS:WG166860-6 L73421-3 Matrix: EFFLUENT Listtype:CVORTHOP Method:SM4500-P-F Project:421430-300 Pkey:STD(Matrix Spike)








Page 4 of 13






Page 5 of 13



LCS:WG166878-2 Matrix: BLANK WTR Listtype:CVTSS Method:SM2540-D Project: Pkey:STD(Lab Control Sample)

Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Suspended Solids 5 10 mg/L 100 95 95 80--120


Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Suspended Solids 1 2 mg/L 9 11.1 21 0--25

LD:WG166878-4 L73451-8 Matrix: GRND WTR Listtype:CVTSS Method:SM2540-D Project:421422-CHGW Pkey:STD(Lab Duplicate)



Page 6 of 13




SB:WG167017-2 MB:WG167017-1 Matrix: BLANK WTR Listtype:CVTOTN Method:SM4500-N-C Project: Pkey:STD(Spike Blank, Method Blank)

Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitTotal Nitrogen 0.05 0.1 mg/L <MDL 1 0.972 97 80--120

SB:WG167017-2 MB:WG167017-1 Matrix: BLANK WTR Listtype:CVTOTP Method:SM4500-P-B,F Project: Pkey:STD(Spike Blank, Method Blank)

Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitTotal Phosphorus 0.005 0.01 mg/L <MDL 0.1 0.101 101 80--120

LCS:WG167017-3 Matrix: BLANK WTR Listtype:CVTOTN Method:SM4500-N-C Project: Pkey:STD(Lab Control Sample)

Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Nitrogen 0.05 0.1 mg/L 1 0.916 92 85--115

LCS:WG167017-3 Matrix: BLANK WTR Listtype:CVTOTP Method:SM4500-P-B,F Project: Pkey:STD(Lab Control Sample)

Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Phosphorus 0.005 0.01 mg/L 0.1 0.0979 98 85--115






Page 7 of 13











LD:WG167017-9 L73301-14 Matrix: FRESH WTR Listtype:CVTOTN Method:SM4500-N-C Project:422030 Pkey:STD(Lab Duplicate)


LD:WG167017-9 L73301-14 Matrix: FRESH WTR Listtype:CVTOTP Method:SM4500-P-B,F Project:422030 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Phosphorus 0.005 0.01 mg/L 0.0192 0.024 22 * 0--20


Page 8 of 13

MS:WG167017-10 L73301-14 Matrix: FRESH WTR Listtype:CVTOTN Method:SM4500-N-C Project:422030 Pkey:STD(Matrix Spike)


MS:WG167017-10 L73301-14 Matrix: FRESH WTR Listtype:CVTOTP Method:SM4500-P-B,F Project:422030 Pkey:STD(Matrix Spike)











Page 9 of 13

Workgroup: WG167083 TOC and DOC


SB:WG167083-3 MB:WG167083-2 Matrix: BLANK WTR Listtype:CVTOC Method:SM5310-B Project: Pkey:STD(Spike Blank, Method Blank)

Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitTotal Organic Carbon 0.5 1 mg/L <MDL 5 5.69 114 80--120

LCS:WG167083-4 Matrix: BLANK WTR Listtype:CVTOC Method:SM5310-B Project: Pkey:STD(Lab Control Sample)

Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Organic Carbon 0.5 1 mg/L 8 8.9 111 85--115

LD:WG167083-5 L73478-2 Matrix: GRND WTR Listtype:CVTOC Method:SM5310-B Project:421422-CHGW Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Organic Carbon 0.5 1 mg/L <MDL <MDL 0--20

MS:WG167083-6 L73478-2 Matrix: GRND WTR Listtype:CVTOC Method:SM5310-B Project:421422-CHGW Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitTotal Organic Carbon 0.5 1 mg/L <MDL 5 5.92 118 75--125


Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Organic Carbon 2.5 5 mg/L 9.96 8.88 11 0--20


Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitTotal Organic Carbon 2.5 5 mg/L 9.96 25 39.1 117 75--125



Page 10 of 13

SB:WG167083-10 MB:WG167083-9 Matrix: BLANK WTR Listtype:CVDOC Method:SM5310-B Project: Pkey:STD(Spike Blank, Method Blank)

Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitDissolved Organic Carbon 0.5 1 mg/L <MDL 5 5.76 115 80--120

LCS:WG167083-11 Matrix: BLANK WTR Listtype:CVDOC Method:SM5310-B Project: Pkey:STD(Lab Control Sample)

Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitDissolved Organic Carbon 0.5 1 mg/L 8 8.55 107 85--115






Page 11 of 13



MB:WG166938-1 Matrix: BLANK WTR Listtype:MTICPMS Method:EPA 200.8 (MOD) Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualBeryllium, Total, ICP-MS 0.1 0.5 ug/L <MDLMagnesium, Total, ICP-MS 50 50 ug/L <MDLCalcium, Total, ICP-MS 50 50 ug/L <MDLChromium, Total, ICP-MS 0.2 1 ug/L <MDLNickel, Total, ICP-MS 0.1 0.5 ug/L <MDLCopper, Total, ICP-MS 0.2 2 ug/L <MDLZinc, Total, ICP-MS 0.5 2.5 ug/L <MDLArsenic, Total, ICP-MS 0.05 0.25 ug/L <MDLSelenium, Total, ICP-MS 0.5 1 ug/L <MDLSilver, Total, ICP-MS 0.04 0.2 ug/L <MDLCadmium, Total, ICP-MS 0.05 0.25 ug/L <MDLAntimony, Total, ICP-MS 0.3 1 ug/L <MDLBarium, Total, ICP-MS 0.5 0.5 ug/L <MDLThallium, Total, ICP-MS 0.1 0.2 ug/L <MDLLead, Total, ICP-MS 0.1 0.5 ug/L <MDL

SB:WG166938-2 MB:WG166938-1 Matrix: BLANK WTR Listtype:MTHARD-ICPMS Method:EPA 200.8 (MOD)*SM2340B Project: Pkey:STD(Spike Blank, Method Blank)

Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitHardness, Calc 0.331 0.331 mg CaCO3/L <MDL 33.1 32.5 98 85--115


Page 12 of 13

SB:WG166938-2 MB:WG166938-1 Matrix: BLANK WTR Listtype:MTICPMS Method:EPA 200.8 (MOD) Project: Pkey:STD(Spike Blank, Method Blank)

Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitBeryllium, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 19.8 99 85--115Magnesium, Total, ICP-MS 50 50 ug/L <MDL 5000 5010 100 85--115Calcium, Total, ICP-MS 50 50 ug/L <MDL 5000 4760 95 85--115Chromium, Total, ICP-MS 0.2 1 ug/L <MDL 20 20 100 85--115Nickel, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 19.7 99 85--115Copper, Total, ICP-MS 0.2 2 ug/L <MDL 20 21 105 85--115Zinc, Total, ICP-MS 0.5 2.5 ug/L <MDL 20 20.2 101 85--115Arsenic, Total, ICP-MS 0.05 0.25 ug/L <MDL 20 19.3 96 85--115Selenium, Total, ICP-MS 0.5 1 ug/L <MDL 20 19.1 95 85--115Silver, Total, ICP-MS 0.04 0.2 ug/L <MDL 20 18.9 94 85--115Cadmium, Total, ICP-MS 0.05 0.25 ug/L <MDL 20 18.9 95 85--115Antimony, Total, ICP-MS 0.3 1 ug/L <MDL 20 19.1 95 85--115Barium, Total, ICP-MS 0.5 0.5 ug/L <MDL 20 19.5 98 85--115Thallium, Total, ICP-MS 0.1 0.2 ug/L <MDL 20 19.8 99 85--115Lead, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 20.7 103 85--115

MSD:WG166938-4 MS:WG166938-3 L73442-5 Matrix: EFFLUENT Listtype:MTHARD-ICPMS Method:EPA 200.8 (MOD)*SM2340B Project:421186B Pkey:STD(Matrix Spike Duplicate, Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab Limit True Value MSD Value % Rec. Qual RPD Qual Lab LimitHardness, Calc 0.331 0.331 mg CaCO3/L 72.6 33.1 104 95 75--125 33.1 107 104 3 0--20

MSD:WG166938-4 MS:WG166938-3 L73442-5 Matrix: EFFLUENT Listtype:MTICPMS Method:EPA 200.8 (MOD) Project:421186B Pkey:STD(Matrix Spike Duplicate, Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab Limit True Value MSD Value % Rec. Qual RPD Qual Lab LimitBeryllium, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 19.6 98 75--125 20 19.6 98 0 0--20Magnesium, Total, ICP-MS 50 50 ug/L 5310 5000 10100 97 75--125 5000 10500 104 4 0--20Calcium, Total, ICP-MS 50 50 ug/L 20300 5000 25000 4xRule 75--125 5000 25600 4xRule 2 0--20Chromium, Total, ICP-MS 0.2 1 ug/L 1.4 20 20.9 98 75--125 20 21.2 99 1 0--20Nickel, Total, ICP-MS 0.1 0.5 ug/L 2.9 20 22 96 75--125 20 22.4 97 2 0--20Copper, Total, ICP-MS 0.2 2 ug/L 7.55 20 28 102 75--125 20 27.8 101 1 0--20Zinc, Total, ICP-MS 0.5 2.5 ug/L 23.5 20 43.8 102 75--125 20 43.8 101 0 0--20Arsenic, Total, ICP-MS 0.05 0.25 ug/L 3.76 20 23.1 97 75--125 20 23.3 98 1 0--20Selenium, Total, ICP-MS 0.5 1 ug/L <MDL 20 19.5 97 75--125 20 19.3 97 1 0--20Silver, Total, ICP-MS 0.04 0.2 ug/L <MDL 20 18.2 91 75--125 20 18.3 91 0 0--20Cadmium, Total, ICP-MS 0.05 0.25 ug/L <MDL 20 18.7 93 75--125 20 18.7 94 0 0--20Antimony, Total, ICP-MS 0.3 1 ug/L 0.78 20 20.5 99 75--125 20 20.1 97 2 0--20Barium, Total, ICP-MS 0.5 0.5 ug/L 4.44 20 24.9 102 75--125 20 23.6 96 5 0--20Thallium, Total, ICP-MS 0.1 0.2 ug/L <MDL 20 18.5 93 75--125 20 18.7 94 1 0--20Lead, Total, ICP-MS 0.1 0.5 ug/L 0.25 20 19.8 98 75--125 20 19.2 95 3 0--20


Page 13 of 13



SB:WG166939-2 MB:WG166939-1 Matrix: BLANK WTR Listtype:MTICPMS-DISS Method:EPA 200.8 (MOD) Project: Pkey:STD(Spike Blank, Method Blank)

Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitCopper, Dissolved, ICP-MS 0.2 2 ug/L <MDL 20 20.4 102 85--115Zinc, Dissolved, ICP-MS 0.5 2.5 ug/L <MDL 20 19.7 98 85--115Cadmium, Dissolved, ICP-MS 0.05 0.25 ug/L <MDL 20 19.1 95 85--115Lead, Dissolved, ICP-MS 0.1 0.5 ug/L <MDL 20 21.4 107 85--115

MSD:WG166939-4 MS:WG166939-3 L72817-5 Matrix: STORM WTR Listtype:MTICPMS-DISS Method:EPA 200.8 (MOD) Project:421195-181 Pkey:STD(Matrix Spike Duplicate, Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab Limit True Value MSD Value % Rec. Qual RPD Qual Lab LimitCopper, Dissolved, ICP-MS 0.2 2 ug/L 10.8 20 31.7 104 75--125 20 31.5 104 0 0--20Zinc, Dissolved, ICP-MS 0.5 2.5 ug/L 49.2 20 69 99 75--125 20 69.2 100 0 0--20Cadmium, Dissolved, ICP-MS 0.05 0.25 ug/L <MDL 20 18.8 94 75--125 20 19.1 95 2 0--20Lead, Dissolved, ICP-MS 0.1 0.5 ug/L 0.23 20 19.8 98 75--125 20 20.5 101 3 0--20

======================================================================================4xRule indicates no MS/MSD recovery was calculated due to the 4x rule.


bourbonaisk

Sticky Note

Note this is the original fieldsheet and does not reflect the locator corrections described in the cover letter. KB 1/21/2020



King County Environmental Laboratory January 21, 2020 REVISED REPORT Stormwater Action Monitoring Effectiveness Studies Pilot Study for Non-Proprietary Dissolved Metals Treatment: Oyster Shell Retrofits in Catch Basins Storm samples collected November 18, 2019 L73552-1 through -9 Notes:

• Inflow and outflow samples were collected at all 4 catch basins. • There was initially some confusion about the proper naming of sampling locations, and

some samples were initially assigned incorrect locators. 10-365-IN and 10-365-OUT were erroneously used for samples collected at 10-647–IN and 10-647-OUT; and vice versa. These incorrect locator assignments have been corrected, and the data report re-run. Data included in this revised report is now associated with the correct locators.

• A second sample was collected at location 10-365-OUT.

Conventionals QC Information Samples were analyzed in the following workgroups: DOC: WG167730 ortho-phosphate-P: WG167470 pH: WG167447 TOC: WG167730 Total N: WG167461 Total P: WG167461 TSS: WG167466 All QC results for conventionals parameters were within laboratory control limits. Note the holding time for pH analysis is <15 minutes. All sample pH results were qualified H since analysis occurred after the holding time had expired. The filtration holding time for ortho-phosphate-P (ortho-P) analysis is <15 minutes. The holding time had expired by the time samples were delivered to the laboratory. Thus, ortho-P results for all samples were qualified H.

Field Measurements QC Information WG167773 All QC results for field measurements were within laboratory control limits. Metals QC Information Total and dissolved fractions for the following elements were analyzed: cadmium, calcium (total only), copper, lead, magnesium (total only) and zinc. Hardness values were calculated. Total Metals and Hardness by ICPMS WG167685 All calculable QC results for total metals parameters were within laboratory control limits. Dissolved Metals by ICPMS WG167712 All calculable QC results for dissolved metals parameters were within laboratory control limits.

Sample Data


1/23/2020 K:\LPM Reports\WLRD Science Reimbursable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17968 MercerIslandOysterShellRetrofit_3rdStorm_18NOV2019_Rev1 Page 1 of 3


Parameters Value Qual MDL RDL Units Value Qual MDL RDL Units Value Qual MDL RDL UnitsCV SM2540-DTotal Suspended Solids 16 0.5 1 mg/L 19.2 1 2 mg/L 24 1.4 2.86 mg/LCV SM4500-H-BpH 7.09 H pH 7.01 H pH 7.1 H pHCV SM4500-N-CTotal Nitrogen 0.425 0.05 0.1 mg/L 0.431 0.05 0.1 mg/L 0.428 0.05 0.1 mg/LCV SM4500-P-B,FTotal Phosphorus 0.0618 0.005 0.01 mg/L 0.0633 0.005 0.01 mg/L 0.0631 0.005 0.01 mg/LCV SM4500-P-FOrthophosphate Phosphorus 0.0114 H 0.0005 0.002 mg/L 0.013 H 0.0005 0.002 mg/L 0.0137 H 0.0005 0.002 mg/LCV SM5310-BDissolved Organic Carbon 3.48 0.5 1 mg/L 3.54 0.5 1 mg/L 3.4 0.5 1 mg/LTotal Organic Carbon 5.89 1 2 mg/L 5.09 1 2 mg/L 6.34 1 2 mg/LES KCEL SOP# 245Conductivity, Field 53.1 0.5 10 umhos/cm 49.4 0.5 10 umhos/cm 48.1 0.5 10 umhos/cmDissolved Oxygen, Field 10.1 0.5 1 mg/L 10.2 0.5 1 mg/L 10.2 0.5 1 mg/LpH, Field 6.96 pH 7 pH 7.1 pHSample Temperature, Field 12.5 deg C 12.2 deg C 12 deg CES NONESample FunctionMT EPA 200.8 (MOD)Cadmium, Dissolved, ICP-MS <MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/LCadmium, Total, ICP-MS <MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/LCalcium, Total, ICP-MS 3430 50 50 ug/L 3360 50 50 ug/L 3950 50 50 ug/LCopper, Dissolved, ICP-MS 2.13 0.2 2 ug/L 2.26 0.2 2 ug/L 2.71 0.2 2 ug/LCopper, Total, ICP-MS 6.52 0.2 2 ug/L 6.75 0.2 2 ug/L 8.14 0.2 2 ug/LLead, Dissolved, ICP-MS 0.19 <RDL 0.1 0.5 ug/L 0.24 <RDL 0.1 0.5 ug/L 0.35 <RDL 0.1 0.5 ug/LLead, Total, ICP-MS 1.48 0.1 0.5 ug/L 1.66 0.1 0.5 ug/L 1.72 0.1 0.5 ug/LMagnesium, Total, ICP-MS 773 50 50 ug/L 798 50 50 ug/L 905 50 50 ug/LZinc, Dissolved, ICP-MS 145 0.5 2.5 ug/L 133 0.5 2.5 ug/L 108 0.5 2.5 ug/LZinc, Total, ICP-MS 202 0.5 2.5 ug/L 191 0.5 2.5 ug/L 164 0.5 2.5 ug/LMT EPA 200.8 (MOD)*SM2340BHardness, Calc 11.8 0.331 0.331 mg CaCO3/L 11.7 0.331 0.331 mg CaCO3/L 13.6 0.331 0.331 mg CaCO3/L




Project: 421195-181 Project: 421195-181 Project: 421195-181Locator: 10-108-OUT Locator: 10-647-IN Locator: 10-647-OUTDescrip: CATCH BASIN OUTFLO Descrip: CATCH BASIN INFLOW Descrip: CATCH BASIN OUTFLOSample: L73552-4 Sample: L73552-5 Sample: L73552-6Matrix: LG STORM WTR Matrix: LG STORM WTR Matrix: LG STORM WTRColDate: 11/18/19 14:45 ColDate: 11/18/19 14:22 ColDate: 11/18/19 14:20WET Weight Basis WET Weight Basis WET Weight Basis

Value Qual MDL RDL Units Value Qual MDL RDL Units Value Qual MDL RDL Units

21.4 1.4 2.86 mg/L 9.8 1 2 mg/L 7.43 1.4 2.86 mg/L

7.11 H pH 7.3 H pH 7.32 H pH

0.347 0.05 0.1 mg/L 1.24 0.05 0.1 mg/L 1.25 0.05 0.1 mg/L

0.0535 0.005 0.01 mg/L 0.193 0.005 0.01 mg/L 0.196 0.005 0.01 mg/L

0.0127 H 0.0005 0.002 mg/L 0.144 H 0.0025 0.01 mg/L 0.151 H 0.0025 0.01 mg/L

3.34 0.5 1 mg/L 3.34 0.5 1 mg/L 3.55 0.5 1 mg/L7.21 1 2 mg/L 4.39 1 2 mg/L 4.32 1 2 mg/L

46.1 0.5 10 umhos/cm 64.2 0.5 10 umhos/cm 67.6 0.5 10 umhos/cm10.2 0.5 1 mg/L 10.2 0.5 1 mg/L 10.3 0.5 1 mg/L7.11 pH 7.3 pH 7.38 pH12.1 deg C 12.9 deg C 13 deg C

<MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L<MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L

3860 50 50 ug/L 5600 50 50 ug/L 5640 50 50 ug/L2.83 0.2 2 ug/L 7.63 0.2 2 ug/L 7.68 0.2 2 ug/L6.82 0.2 2 ug/L 12.5 0.2 2 ug/L 11.9 0.2 2 ug/L

0.572 0.1 0.5 ug/L 0.16 <RDL 0.1 0.5 ug/L 0.17 <RDL 0.1 0.5 ug/L1.5 0.1 0.5 ug/L 1.02 0.1 0.5 ug/L 1 0.1 0.5 ug/L888 50 50 ug/L 1280 50 50 ug/L 1280 50 50 ug/L118 0.5 2.5 ug/L 50.9 0.5 2.5 ug/L 51.2 0.5 2.5 ug/L160 0.5 2.5 ug/L 70.5 0.5 2.5 ug/L 68 0.5 2.5 ug/L

13.3 0.331 0.331 mg CaCO3/L 19.3 0.331 0.331 mg CaCO3/L 19.4 0.331 0.331 mg CaCO3/L




Project: 421195-181 Project: 421195-181 Project: 421195-181Locator: 10-365-IN Locator: 10-365-OUT Locator: 10-365-OUTDescrip: CATCH BASIN INFLOW Descrip: CATCH BASIN OUTFLO Descrip: CATCH BASIN OUTFLOSample: L73552-7 Sample: L73552-8 Sample: L73552-9Matrix: LG STORM WTR Matrix: LG STORM WTR Matrix: LG STORM WTRColDate: 11/18/19 14:40 ColDate: 11/18/19 14:36 ColDate: 11/18/19 14:36WET Weight Basis WET Weight Basis WET Weight Basis


6.86 1.4 2.86 mg/L 7.14 1.4 2.86 mg/L 8.57 1.4 2.86 mg/L

7.58 H pH 7.56 H pH 7.55 H pH

1.36 0.05 0.1 mg/L 1.48 0.05 0.1 mg/L 1.41 0.05 0.1 mg/L

0.211 0.005 0.01 mg/L 0.223 0.005 0.01 mg/L 0.217 0.005 0.01 mg/L

0.169 H 0.0025 0.01 mg/L 0.171 H 0.0025 0.01 mg/L 0.173 H 0.0025 0.01 mg/L


76.4 0.5 10 umhos/cm 76.3 0.5 10 umhos/cm 76.8 0.5 10 umhos/cm10.5 0.5 1 mg/L 10.2 0.5 1 mg/L 10.3 0.5 1 mg/L7.4 pH 7.42 pH 7.43 pH13 deg C 12.9 deg C 13 deg C

FREP none


6490 50 50 ug/L 6490 50 50 ug/L 6570 50 50 ug/L8.75 0.2 2 ug/L 8.7 0.2 2 ug/L 8.86 0.2 2 ug/L12.6 0.2 2 ug/L 12.3 0.2 2 ug/L 13.3 0.2 2 ug/L0.2 <RDL 0.1 0.5 ug/L 0.22 <RDL 0.1 0.5 ug/L 0.23 <RDL 0.1 0.5 ug/L

0.845 0.1 0.5 ug/L 0.861 0.1 0.5 ug/L 1.01 0.1 0.5 ug/L1760 50 50 ug/L 1750 50 50 ug/L 1770 50 50 ug/L53.4 0.5 2.5 ug/L 53.6 0.5 2.5 ug/L 54.5 0.5 2.5 ug/L67.4 0.5 2.5 ug/L 67.6 0.5 2.5 ug/L 72.6 0.5 2.5 ug/L



1/23/2020 K:\LPM Reports\WLRD Science Reimbursable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17968 MercerIslandOysterShellRetrofit_3rdStorm_18NOV2019_matrix_Rev1 Page 1 of 2


Tota

l Sus

pend

ed S

olid

s

pH Tota

l Nitr

ogen

Tota

l Pho

spho

rus

Ort

hoph

osph

ate

Phos

phor

us

Dis

solv

ed O

rgan

ic C

arbo

n

Tota

l Org

anic

Car

bon

Con

duct

ivity

, Fie

ld

Dis

solv

ed O

xyge

n, F

ield

Sam

ple

Tem

pera

ture

, Fie

ld

pH, F

ield

Cad

miu

m, D

isso

lved

, IC

P-M

S

Cad

miu

m, T

otal

, IC

P-M

S

Cal

cium

, Tot

al, I

CP-

MS

Cop

per,

Dis

solv

ed, I

CP-

MS

Cop

per,

Tota

l, IC

P-M

S

Lead

, Dis

solv

ed, I

CP-

MS

LOCATOR PROJECT SAMPLE COLLECTED mg/L pH mg/L mg/L mg/L mg/L mg/L umhos/cm mg/L deg C pH ug/L ug/L ug/L ug/L ug/L ug/L10-109-IN 421195-181 L73552-1 11/18/2019 13:53 16 7.09 0.425 0.0618 0.0114 3.48 5.89 53.1 10.1 12.5 6.96 3430 2.13 6.52 0.1910-109-OUT 421195-181 L73552-2 11/18/2019 13:52 19.2 7.01 0.431 0.0633 0.013 3.54 5.09 49.4 10.2 12.2 7 3360 2.26 6.75 0.2410-108-IN 421195-181 L73552-3 11/18/2019 14:47 24 7.1 0.428 0.0631 0.0137 3.4 6.34 48.1 10.2 12 7.1 3950 2.71 8.14 0.3510-108-OUT 421195-181 L73552-4 11/18/2019 14:45 21.4 7.11 0.347 0.0535 0.0127 3.34 7.21 46.1 10.2 12.1 7.11 3860 2.83 6.82 0.57210-647-IN 421195-181 L73552-5 11/18/2019 14:22 9.8 7.3 1.24 0.193 0.144 3.34 4.39 64.2 10.2 12.9 7.3 5600 7.63 12.5 0.1610-647-OUT 421195-181 L73552-6 11/18/2019 14:20 7.43 7.32 1.25 0.196 0.151 3.55 4.32 67.6 10.3 13 7.38 5640 7.68 11.9 0.1710-365-IN 421195-181 L73552-7 11/18/2019 14:40 6.86 7.58 1.36 0.211 0.169 3.47 4.23 76.4 10.5 13 7.4 6490 8.75 12.6 0.210-365-OUT 421195-181 L73552-8 11/18/2019 14:36 7.14 7.56 1.48 0.223 0.171 3.81 4.66 76.3 10.2 12.9 7.42 6490 8.7 12.3 0.2210-365-OUT 421195-181 L73552-9 11/18/2019 14:36 8.57 7.55 1.41 0.217 0.173 3.38 4.27 76.8 10.3 13 7.43 6570 8.86 13.3 0.23* Not converted to dry weight basisIf a parameter/analyte appears twice in the column header, it implies that they were analyzed by two different method codes


1/23/2020 K:\LPM Reports\WLRD Science Reimbursable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17968 MercerIslandOysterShellRetrofit_3rdStorm_18NOV2019_matrix_Rev1 Page 2 of 2


LOCATOR PROJECT SAMPLE COLLECTED10-109-IN 421195-181 L73552-1 11/18/2019 13:5310-109-OUT 421195-181 L73552-2 11/18/2019 13:5210-108-IN 421195-181 L73552-3 11/18/2019 14:4710-108-OUT 421195-181 L73552-4 11/18/2019 14:4510-647-IN 421195-181 L73552-5 11/18/2019 14:2210-647-OUT 421195-181 L73552-6 11/18/2019 14:2010-365-IN 421195-181 L73552-7 11/18/2019 14:4010-365-OUT 421195-181 L73552-8 11/18/2019 14:3610-365-OUT 421195-181 L73552-9 11/18/2019 14:36* Not converted to dry weight basisIf a parameter/analyte appears twice in the column header, it implie

Lead

, Tot

al, I

CP-

MS

Mag

nesi

um, T

otal

, IC

P-M

S

Zinc

, Dis

solv

ed, I

CP-

MS

Zinc

, Tot

al, I

CP-

MS

Har

dnes

s, C

alc

Sam

ple

Func

tion

ug/L ug/L ug/L ug/L mg CaCO3/L none1.48 773 145 202 11.81.66 798 133 191 11.71.72 905 108 164 13.61.5 888 118 160 13.31.02 1280 50.9 70.5 19.3

1 1280 51.2 68 19.40.845 1760 53.4 67.4 23.50.861 1750 53.6 67.6 23.41.01 1770 54.5 72.6 23.7


King County Environmental Laboratory Batch Report Mercer Island Oyster Shell Project 3rd Storm 18NOV2019

Page 1 of 12

WG167447 Alkalinity, Bicarbonate and pH

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72139-4 421422-CHGW-APP3 SWD-CHGW-Appendix III GW Analytes CVALK GRND WTR 11/13/2019 11:30 11/20/2019 9:16 11/20/2019 9:16 WG167447-10,-11,-12,-13,-6,-7,-8,-9L72139-5 421422-CHGW-APP3 SWD-CHGW-Appendix III GW Analytes CVALK GRND WTR 11/13/2019 8:45 11/20/2019 9:23 11/20/2019 9:23 WG167447-10,-11,-12,-13,-6,-7,-8,-9L72139-7 421422-CHGW-APP3 SWD-CHGW-Appendix III GW Analytes CVALK GRND WTR 11/13/2019 7:25 11/20/2019 9:31 11/20/2019 9:31 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 11/18/2019 13:53 11/19/2019 15:52 11/19/2019 15:52 WG167447-1,-2,-3,-4,-5L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 11/18/2019 13:52 11/19/2019 15:56 11/19/2019 15:56 WG167447-1,-2,-3,-4,-5L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 11/18/2019 14:47 11/19/2019 16:00 11/19/2019 16:00 WG167447-1,-2,-3,-4,-5L73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 11/18/2019 14:45 11/19/2019 16:04 11/19/2019 16:04 WG167447-1,-2,-3,-4,-5L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 11/18/2019 14:22 11/19/2019 16:08 11/19/2019 16:08 WG167447-1,-2,-3,-4,-5L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 11/18/2019 14:20 11/19/2019 16:12 11/19/2019 16:12 WG167447-1,-2,-3,-4,-5L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 11/18/2019 14:40 11/20/2019 8:15 11/20/2019 8:15 WG167447-1,-2,-3,-4,-5L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 11/18/2019 14:36 11/20/2019 8:34 11/20/2019 8:34 WG167447-1,-2,-3,-4,-5L73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 11/18/2019 14:36 11/20/2019 8:39 11/20/2019 8:39 WG167447-1,-2,-3,-4,-5 FREPL73625-1 421422-CHGW_EPZ SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched Zone CVALK GRND WTR 11/15/2019 9:30 11/20/2019 9:40 11/20/2019 9:40 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73625-1 421422-CHGW_EPZ SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched Zone CVALK-BI GRND WTR 11/15/2019 9:30 11/20/2019 9:40 11/20/2019 9:40 WG167447-8L73625-2 421422-CHGW_EPZ SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched Zone CVALK GRND WTR 11/18/2019 8:50 11/20/2019 9:55 11/20/2019 9:55 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73625-2 421422-CHGW_EPZ SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched Zone CVALK-BI GRND WTR 11/18/2019 8:50 11/20/2019 9:55 11/20/2019 9:55 WG167447-8L73656-1 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 12:49 11/20/2019 10:43 11/20/2019 10:43 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-2 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 11:48 11/20/2019 10:53 11/20/2019 10:53 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-3 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 11:35 11/20/2019 11:01 11/20/2019 11:01 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-4 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 11:11 11/20/2019 11:09 11/20/2019 11:09 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-5 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 10:49 11/20/2019 11:16 11/20/2019 11:16 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-6 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 10:02 11/20/2019 11:23 11/20/2019 11:23 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-7 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 9:43 11/20/2019 11:31 11/20/2019 11:31 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-8 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 9:17 11/20/2019 11:38 11/20/2019 11:38 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-9 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 8:57 11/20/2019 11:54 11/20/2019 11:54 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-10 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 8:20 11/20/2019 12:01 11/20/2019 12:01 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-11 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 8:01 11/20/2019 12:08 11/20/2019 12:08 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-12 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 7:49 11/20/2019 12:15 11/20/2019 12:15 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73656-14 422019 WRIA 7 Streams Ambient Monitoring CVALK FRESH WTR 11/18/2019 10:52 11/20/2019 12:22 11/20/2019 12:22 WG167447-10,-11,-12,-13,-6,-7,-8,-9 FREP @ L73656-5L73686-2 421422-CHGW_EPZ SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched Zone CVALK GRND WTR 11/15/2019 10:40 11/20/2019 10:11 11/20/2019 10:11 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73686-2 421422-CHGW_EPZ SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched Zone CVALK-BI GRND WTR 11/15/2019 10:40 11/20/2019 10:11 11/20/2019 10:11 WG167447-8L73686-4 421422-CHGW_EPZ SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched Zone CVALK GRND WTR 11/15/2019 12:30 11/20/2019 10:17 11/20/2019 10:17 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73686-4 421422-CHGW_EPZ SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched Zone CVALK-BI GRND WTR 11/15/2019 12:30 11/20/2019 10:17 11/20/2019 10:17 WG167447-8L73688-5 421422-CHGW_EPZ SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched Zone CVALK GRND WTR 11/18/2019 9:30 11/20/2019 10:25 11/20/2019 10:25 WG167447-10,-11,-12,-13,-6,-7,-8,-9L73688-5 421422-CHGW_EPZ SWD-CHGW-EPZ Cedar Hills Landfill GW East Perched Zone CVALK-BI GRND WTR 11/18/2019 9:30 11/20/2019 10:25 11/20/2019 10:25 WG167447-8WG167447-1 LCS CVPH BLANK WTR 11/19/2019 15:44 11/19/2019 15:44 WG167447-1,-2,-3,-4,-5 LEVEL1WG167447-2 LCS CVPH BLANK WTR 11/19/2019 15:48 11/19/2019 15:48 WG167447-1,-2,-3,-4,-5 LEVEL2WG167447-3 LD CVPH STORM WTR 11/19/2019 16:16 11/19/2019 16:16 WG167447-1,-2,-3,-4,-5 L73552-6WG167447-4 LCS CVPH BLANK WTR 11/20/2019 8:43 11/20/2019 8:43 WG167447-1,-2,-3,-4,-5 LEVEL1WG167447-5 LCS CVPH BLANK WTR 11/20/2019 8:47 11/20/2019 8:47 WG167447-1,-2,-3,-4,-5 LEVEL2WG167447-6 MDLCK CVALK BLANK WTR 11/20/2019 8:51 11/20/2019 8:51 WG167447-10,-11,-12,-13,-6,-7,-8,-9 LEVEL1WG167447-7 LCS CVALK BLANK WTR 11/20/2019 9:00 11/20/2019 9:00 WG167447-10,-11,-12,-13,-6,-7,-8,-9 LEVEL3WG167447-8 LD CVALK GRND WTR 11/20/2019 9:47 11/20/2019 9:47 WG167447-10,-11,-12,-13,-6,-7,-8,-9 L73625-1WG167447-8 LD CVALK-BI GRND WTR 11/20/2019 9:47 11/20/2019 9:47 WG167447-8 L73625-1WG167447-9 LCS CVALK BLANK WTR 11/20/2019 10:32 11/20/2019 10:32 WG167447-10,-11,-12,-13,-6,-7,-8,-9 LEVEL3WG167447-10 LD CVALK FRESH WTR 11/20/2019 11:46 11/20/2019 11:46 WG167447-10,-11,-12,-13,-6,-7,-8,-9 L73656-8WG167447-11 LCS CVALK BLANK WTR 11/20/2019 12:30 11/20/2019 12:30 WG167447-10,-11,-12,-13,-6,-7,-8,-9 LEVEL1WG167447-12 LCS CVALK BLANK WTR 11/20/2019 12:49 11/20/2019 12:49 WG167447-10,-11,-12,-13,-6,-7,-8,-9 LEVEL3WG167447-13 LCS CVALK BLANK WTR 11/20/2019 13:00 11/20/2019 13:00 WG167447-10,-11,-12,-13,-6,-7,-8,-9 LEVEL4


Page 2 of 12


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73372-1 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTN FRESH WTR 11/18/2019 8:49 11/20/2019 10:42 11/25/2019 11:35 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73372-1 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTP FRESH WTR 11/18/2019 8:49 11/20/2019 10:42 11/25/2019 11:35 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73372-2 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTN FRESH WTR 11/18/2019 9:13 11/20/2019 10:42 11/25/2019 11:50 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73372-2 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTP FRESH WTR 11/18/2019 9:13 11/20/2019 10:42 11/25/2019 11:50 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73372-3 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTN FRESH WTR 11/18/2019 9:20 11/20/2019 10:42 11/25/2019 11:52 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73372-3 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTP FRESH WTR 11/18/2019 9:20 11/20/2019 10:42 11/25/2019 11:52 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73372-4 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTN FRESH WTR 11/18/2019 9:44 11/20/2019 10:42 11/25/2019 11:54 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73372-4 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTP FRESH WTR 11/18/2019 9:44 11/20/2019 10:42 11/25/2019 11:54 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73372-5 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTN FRESH WTR 11/18/2019 9:54 11/20/2019 10:42 11/25/2019 11:56 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73372-5 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTP FRESH WTR 11/18/2019 9:54 11/20/2019 10:42 11/25/2019 11:56 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73372-6 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTN FRESH WTR 11/18/2019 10:28 11/20/2019 10:42 11/25/2019 11:58 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73372-6 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTP FRESH WTR 11/18/2019 10:28 11/20/2019 10:42 11/25/2019 11:58 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73372-7 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTN FRESH WTR 11/18/2019 10:39 11/20/2019 10:42 11/25/2019 12:00 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73372-7 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTOTP FRESH WTR 11/18/2019 10:39 11/20/2019 10:42 11/25/2019 12:00 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 11/18/2019 13:53 11/20/2019 10:42 11/25/2019 12:02 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 11/18/2019 13:53 11/20/2019 10:42 11/25/2019 12:02 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 11/18/2019 13:52 11/20/2019 10:42 11/25/2019 12:04 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 11/18/2019 13:52 11/20/2019 10:42 11/25/2019 12:04 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 11/18/2019 14:47 11/20/2019 10:42 11/25/2019 12:13 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 11/18/2019 14:47 11/20/2019 10:42 11/25/2019 12:13 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 11/18/2019 14:22 11/20/2019 10:42 11/25/2019 12:17 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 11/18/2019 14:22 11/20/2019 10:42 11/25/2019 12:17 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 11/18/2019 14:20 11/20/2019 10:42 11/25/2019 12:19 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 11/18/2019 14:20 11/20/2019 10:42 11/25/2019 12:19 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 11/18/2019 14:40 11/20/2019 10:42 11/25/2019 12:21 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 11/18/2019 14:40 11/20/2019 10:42 11/25/2019 12:21 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 11/18/2019 14:36 11/20/2019 10:42 11/25/2019 12:23 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 11/18/2019 14:36 11/20/2019 10:42 11/25/2019 12:23 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 11/18/2019 14:36 11/20/2019 10:42 11/25/2019 12:25 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 FREPL73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 11/18/2019 14:36 11/20/2019 10:42 11/25/2019 12:25 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 FREPL73627-1 421422-VASW SWD-VASW Vashon Surface Water Quarterly CVTOTP FRESH WTR 11/7/2019 8:00 11/20/2019 10:42 11/25/2019 11:27 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73627-3 421422-VASW SWD-VASW Vashon Surface Water Quarterly CVTOTP FRESH WTR 11/7/2019 8:30 11/20/2019 10:42 11/25/2019 11:29 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73627-5 421422-VASW SWD-VASW Vashon Surface Water Quarterly CVTOTP FRESH WTR 11/7/2019 8:15 11/20/2019 10:42 11/25/2019 11:31 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73627-8 421422-VASW SWD-VASW Vashon Surface Water Quarterly CVTOTP FRESH WTR 11/7/2019 8:00 11/20/2019 10:42 11/25/2019 11:33 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-1 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 12:49 11/20/2019 10:42 11/25/2019 12:40 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-1 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 12:49 11/20/2019 10:42 11/25/2019 12:40 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-2 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 11:48 11/20/2019 10:42 11/25/2019 12:48 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-2 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 11:48 11/20/2019 10:42 11/25/2019 12:48 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-3 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 11:35 11/20/2019 10:42 11/25/2019 12:50 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-3 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 11:35 11/20/2019 10:42 11/25/2019 12:50 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-4 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 11:11 11/20/2019 10:42 11/25/2019 12:52 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-4 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 11:11 11/20/2019 10:42 11/25/2019 12:52 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-5 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 10:49 11/20/2019 10:42 11/25/2019 12:53 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-5 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 10:49 11/20/2019 10:42 11/25/2019 12:53 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-6 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 10:02 11/20/2019 10:42 11/25/2019 12:55 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-6 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 10:02 11/20/2019 10:42 11/25/2019 12:55 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-7 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 9:43 11/20/2019 10:42 11/25/2019 12:57 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-7 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 9:43 11/20/2019 10:42 11/25/2019 12:57 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-8 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 9:17 11/20/2019 10:42 11/25/2019 13:07 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-8 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 9:17 11/20/2019 10:42 11/25/2019 13:07 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-9 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 8:57 11/20/2019 10:42 11/25/2019 13:09 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-9 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 8:57 11/20/2019 10:42 11/25/2019 13:09 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-10 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 8:20 11/20/2019 10:42 11/25/2019 13:11 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-10 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 8:20 11/20/2019 10:42 11/25/2019 13:11 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-11 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 8:01 11/20/2019 10:42 11/25/2019 13:13 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-11 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 8:01 11/20/2019 10:42 11/25/2019 13:13 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-12 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 7:49 11/20/2019 10:42 11/25/2019 13:15 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10L73656-12 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 7:49 11/20/2019 10:42 11/25/2019 13:15 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73656-14 422019 WRIA 7 Streams Ambient Monitoring CVTOTN FRESH WTR 11/18/2019 10:52 11/20/2019 10:42 11/25/2019 13:16 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 FREP @ L73656-5L73656-14 422019 WRIA 7 Streams Ambient Monitoring CVTOTP FRESH WTR 11/18/2019 10:52 11/20/2019 10:42 11/25/2019 13:16 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 FREP @ L73656-5L73659-3 421195-150 Beaver Lake CVTOTP FRESH WTR 11/13/2019 9:50 11/20/2019 10:42 11/25/2019 13:34 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8L73671-1 421430-300 OCS-Lake Haven Utility District routine testing CVTOTP EFFLUENT 11/12/2019 7:26 11/20/2019 10:42 11/25/2019 13:18 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8


Page 3 of 12

L73671-3 421430-300 OCS-Lake Haven Utility District routine testing CVTOTP EFFLUENT 11/12/2019 7:32 11/20/2019 10:42 11/25/2019 13:24 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8WG167461-1 MB CVTOTN BLANK WTR 11/20/2019 10:42 11/25/2019 11:20 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 MB1 191120 1042WG167461-1 MB CVTOTP BLANK WTR 11/20/2019 10:42 11/25/2019 11:20 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 MB1 191120 1042WG167461-2 SB CVTOTN BLANK WTR 11/20/2019 10:42 11/25/2019 11:21 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 WG167461-1WG167461-2 SB CVTOTP BLANK WTR 11/20/2019 10:42 11/25/2019 11:21 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 WG167461-1WG167461-3 LCS CVTOTN BLANK WTR 11/20/2019 10:42 11/25/2019 11:23 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 LEVEL1WG167461-3 LCS CVTOTP BLANK WTR 11/20/2019 10:42 11/25/2019 11:23 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 LEVEL1WG167461-4 MDLCK CVTOTN BLANK WTR 11/20/2019 10:42 11/25/2019 11:25 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 LEVEL1WG167461-4 MDLCK CVTOTP BLANK WTR 11/20/2019 10:42 11/25/2019 11:25 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 LEVEL1WG167461-5 LD CVTOTN FRESH WTR 11/20/2019 10:42 11/25/2019 11:37 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 L73372-1WG167461-5 LD CVTOTP FRESH WTR 11/20/2019 10:42 11/25/2019 11:37 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 L73372-1WG167461-6 MS CVTOTN FRESH WTR 11/20/2019 10:42 11/25/2019 11:46 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 L73372-1WG167461-6 MS CVTOTP FRESH WTR 11/20/2019 10:42 11/25/2019 11:46 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 L73372-1WG167461-7 MB CVTOTN BLANK WTR 11/20/2019 10:42 11/25/2019 12:29 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 MB2 191120 1042WG167461-7 MB CVTOTP BLANK WTR 11/20/2019 10:42 11/25/2019 12:29 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 MB2 191120 1042WG167461-8 LCS CVTOTN BLANK WTR 11/20/2019 10:42 11/25/2019 12:30 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 LEVEL1WG167461-8 LCS CVTOTP BLANK WTR 11/20/2019 10:42 11/25/2019 12:30 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 LEVEL1WG167461-9 LD CVTOTN FRESH WTR 11/20/2019 10:42 11/25/2019 12:42 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 L73656-1WG167461-9 LD CVTOTP FRESH WTR 11/20/2019 10:42 11/25/2019 12:42 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 L73656-1WG167461-10 MS CVTOTN FRESH WTR 11/20/2019 10:42 11/25/2019 12:44 WG167461-1,-2,-3,-4,-5,-6,-7,-8,-9,-10 L73656-1WG167461-10 MS CVTOTP FRESH WTR 11/20/2019 10:42 11/25/2019 12:44 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 L73656-1WG167461-11 LD CVTOTP EFFLUENT 11/20/2019 10:42 11/25/2019 13:20 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 L73671-1WG167461-12 MS CVTOTP EFFLUENT 11/20/2019 10:42 11/25/2019 13:22 WG167461-9,-10,-1,-2,-3,-4,-5,-6,-11,-12,-7,-8 L73671-1


Page 4 of 12

WG167466 TSS

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73372-1 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTSS FRESH WTR 11/18/2019 8:49 11/21/2019 11:32 11/21/2019 15:35 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73372-2 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTSS FRESH WTR 11/18/2019 9:13 11/21/2019 11:32 11/21/2019 15:36 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73372-3 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTSS FRESH WTR 11/18/2019 9:20 11/21/2019 11:32 11/21/2019 15:36 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73372-4 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTSS FRESH WTR 11/18/2019 9:44 11/21/2019 11:32 11/21/2019 15:36 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73372-5 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTSS FRESH WTR 11/18/2019 9:54 11/21/2019 11:32 11/21/2019 15:36 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73372-6 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTSS FRESH WTR 11/18/2019 10:28 11/21/2019 11:32 11/21/2019 15:37 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73372-7 421874-100 City of Shoreline Monthly Water Quality Monitoring CVTSS FRESH WTR 11/18/2019 10:39 11/21/2019 11:32 11/21/2019 15:37 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 11/18/2019 13:53 11/21/2019 11:32 11/21/2019 15:32 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 11/18/2019 13:52 11/21/2019 11:32 11/21/2019 15:32 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 11/18/2019 14:47 11/21/2019 11:32 11/21/2019 15:33 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 11/18/2019 14:45 11/21/2019 11:32 11/21/2019 15:33 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 11/18/2019 14:22 11/21/2019 11:32 11/21/2019 15:34 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 11/18/2019 14:20 11/21/2019 11:32 11/21/2019 15:34 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 11/18/2019 14:40 11/21/2019 11:32 11/21/2019 15:34 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 11/18/2019 14:36 11/21/2019 11:32 11/21/2019 15:35 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 11/18/2019 14:36 11/21/2019 11:32 11/21/2019 15:35 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 FREPL73648-1 421250ON Ambient Offshore Water Column-North CVTSS FRESH WTR 11/18/2019 12:07 11/21/2019 11:32 11/21/2019 15:38 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73648-2 421250ON Ambient Offshore Water Column-North CVTSS FRESH WTR 11/18/2019 12:42 11/21/2019 11:32 11/21/2019 15:29 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73648-3 421250ON Ambient Offshore Water Column-North CVTSS FRESH WTR 11/18/2019 13:16 11/21/2019 11:32 11/21/2019 15:29 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73649-1 421250ON Ambient Offshore Water Column-North CVTSS SALT WTR 11/18/2019 12:06 11/21/2019 11:32 11/21/2019 15:15 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73649-2 421250ON Ambient Offshore Water Column-North CVTSS SALT WTR 11/18/2019 12:41 11/21/2019 11:32 11/21/2019 15:16 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73649-3 421250ON Ambient Offshore Water Column-North CVTSS SALT WTR 11/18/2019 13:15 11/21/2019 11:32 11/21/2019 15:16 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-1 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:12 11/21/2019 11:32 11/21/2019 15:17 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-3 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:10 11/21/2019 11:32 11/21/2019 15:17 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-4 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:09 11/21/2019 11:32 11/21/2019 15:17 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-5 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:09 11/21/2019 11:32 11/21/2019 15:17 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-6 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:07 11/21/2019 11:32 11/21/2019 15:18 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-7 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:05 11/21/2019 11:32 11/21/2019 15:18 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-8 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:01 11/21/2019 11:32 11/21/2019 15:18 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-9 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:42 11/21/2019 11:32 11/21/2019 15:19 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-10 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:41 11/21/2019 11:32 11/21/2019 15:19 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-11 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:40 11/21/2019 11:32 11/21/2019 15:19 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-12 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 8:40 11/21/2019 11:32 11/21/2019 15:20 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-13 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 9:25 11/21/2019 11:32 11/21/2019 15:20 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-14 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 9:24 11/21/2019 11:32 11/21/2019 15:20 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-15 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 9:59 11/21/2019 11:32 11/21/2019 15:20 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-17 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 9:58 11/21/2019 11:32 11/21/2019 15:21 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-18 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 9:57 11/21/2019 11:32 11/21/2019 15:21 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-19 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 9:56 11/21/2019 11:32 11/21/2019 15:21 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-20 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 9:55 11/21/2019 11:32 11/21/2019 15:23 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-21 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 9:53 11/21/2019 11:32 11/21/2019 15:23 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-22 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 9:49 11/21/2019 11:32 11/21/2019 15:24 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 FREP@L73650-23L73650-23 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 9:49 11/21/2019 11:32 11/21/2019 15:24 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-24 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 11:01 11/21/2019 11:32 11/21/2019 15:24 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-25 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 10:59 11/21/2019 11:32 11/21/2019 15:25 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-26 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 10:58 11/21/2019 11:32 11/21/2019 15:25 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-27 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 10:58 11/21/2019 11:32 11/21/2019 15:25 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-28 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 10:56 11/21/2019 11:32 11/21/2019 15:26 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-29 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 13:08 11/21/2019 11:32 11/21/2019 15:26 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-31 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 13:06 11/21/2019 11:32 11/21/2019 15:26 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-32 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 13:05 11/21/2019 11:32 11/21/2019 15:26 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-33 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 13:04 11/21/2019 11:32 11/21/2019 15:27 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-34 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 13:03 11/21/2019 11:32 11/21/2019 15:27 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-35 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 13:01 11/21/2019 11:32 11/21/2019 15:27 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73650-36 421250OS Ambient Offshore Water Column-South CVTSS SALT WTR 11/19/2019 12:57 11/21/2019 11:32 11/21/2019 15:28 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73663-3 421250BS Ambient Intertidal Beaches-South CVTSS SALT WTR 11/20/2019 10:22 11/21/2019 11:32 11/21/2019 15:28 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73663-4 421250BS Ambient Intertidal Beaches-South CVTSS SALT WTR 11/20/2019 10:17 11/21/2019 11:32 11/21/2019 15:28 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73663-5 421250BS Ambient Intertidal Beaches-South CVTSS SALT WTR 11/20/2019 8:41 11/21/2019 11:32 11/21/2019 15:28 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73663-6 421250BS Ambient Intertidal Beaches-South CVTSS SALT WTR 11/20/2019 8:33 11/21/2019 11:32 11/21/2019 15:29 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10L73663-8 421250BS Ambient Intertidal Beaches-South CVTSS SALT WTR 11/20/2019 13:49 11/21/2019 11:32 11/21/2019 15:31 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10WG167466-1 MB CVTSS BLANK WTR 11/21/2019 11:32 11/21/2019 15:15 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 MB1 191121WG167466-2 LCS CVTSS BLANK WTR 11/21/2019 11:32 11/21/2019 15:15 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 LEVEL1


Page 5 of 12

WG167466-3 LD CVTSS SALT WTR 11/21/2019 11:32 11/21/2019 15:16 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 L73649-2WG167466-4 MB CVTSS BLANK WTR 11/21/2019 11:32 11/21/2019 15:22 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 MB2 191121WG167466-5 LCS CVTSS BLANK WTR 11/21/2019 11:32 11/21/2019 15:23 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 LEVEL1WG167466-6 LD CVTSS SALT WTR 11/21/2019 11:32 11/21/2019 15:25 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 L73650-27WG167466-7 MB CVTSS BLANK WTR 11/21/2019 11:32 11/21/2019 15:31 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 MB3 191122WG167466-8 LCS CVTSS BLANK WTR 11/21/2019 11:32 11/21/2019 15:31 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 LEVEL1WG167466-9 LD CVTSS SALT WTR 11/21/2019 11:32 11/21/2019 15:31 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 L73663-8WG167466-10 LD CVTSS STORM WTR 11/21/2019 11:32 11/21/2019 15:33 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 L73552-4WG167466-11 LD CVTSS FRESH WTR 11/21/2019 11:32 11/21/2019 15:37 WG167466-2,-3,-4,-5,-1,-6,-11,-7,-8,-9,-10 L73372-5


Page 6 of 12

WG167470 Ortho P

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 11/18/2019 13:53 11/22/2019 7:30 11/22/2019 9:10 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 11/18/2019 13:52 11/22/2019 7:30 11/22/2019 9:13 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 11/18/2019 14:47 11/22/2019 7:30 11/22/2019 9:16 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 11/18/2019 14:45 11/22/2019 7:30 11/22/2019 9:34 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 11/18/2019 14:22 11/22/2019 7:30 11/22/2019 11:37 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 11/18/2019 14:20 11/22/2019 7:30 11/22/2019 11:40 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 11/18/2019 14:40 11/22/2019 7:30 11/22/2019 11:42 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 11/18/2019 14:36 11/22/2019 7:30 11/22/2019 11:45 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 11/18/2019 14:36 11/22/2019 7:30 11/22/2019 11:48 WG167470-1,-2,-3,-4,-5,-6,-7,-8 FREPL73704-1 421422-CHLS-M SWD-CHLS-M Cedar Hills Leachate Monthly CVORTHOP LEACHATE 11/19/2019 9:00 11/22/2019 7:30 11/22/2019 10:57 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73704-3 421422-CHLS-M SWD-CHLS-M Cedar Hills Leachate Monthly CVORTHOP LEACHATE 11/20/2019 10:10 11/22/2019 7:30 11/22/2019 10:49 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73704-4 421422-CHLS-M SWD-CHLS-M Cedar Hills Leachate Monthly CVORTHOP LEACHATE 11/19/2019 13:06 11/22/2019 7:30 11/22/2019 11:26 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73704-5 421422-CHLS-M SWD-CHLS-M Cedar Hills Leachate Monthly CVORTHOP LEACHATE 11/20/2019 9:40 11/22/2019 7:30 11/22/2019 11:02 WG167470-1,-2,-3,-4,-5,-6,-7,-8L73704-7 421422-CHLS-M SWD-CHLS-M Cedar Hills Leachate Monthly CVORTHOP LEACHATE 11/20/2019 9:40 11/22/2019 7:30 11/22/2019 11:05 WG167470-1,-2,-3,-4,-5,-6,-7,-8WG167470-1 MB CVORTHOP BLANK WTR 11/22/2019 7:30 11/22/2019 9:00 WG167470-1,-2,-3,-4,-5,-6,-7,-8 MB1 11/22/19 7:30WG167470-2 SB CVORTHOP BLANK WTR 11/22/2019 7:30 11/22/2019 9:02 WG167470-1,-2,-3,-4,-5,-6,-7,-8 WG167470-1WG167470-3 LCS CVORTHOP BLANK WTR 11/22/2019 9:05 11/22/2019 9:05 WG167470-1,-2,-3,-4,-5,-6,-7,-8 LEVEL1WG167470-4 MDLCK CVORTHOP BLANK WTR 11/22/2019 7:30 11/22/2019 9:08 WG167470-1,-2,-3,-4,-5,-6,-7,-8 LEVEL1WG167470-5 LD CVORTHOP STORM WTR 11/22/2019 7:30 11/22/2019 9:18 WG167470-1,-2,-3,-4,-5,-6,-7,-8 L73552-3WG167470-6 MS CVORTHOP STORM WTR 11/22/2019 7:30 11/22/2019 9:21 WG167470-1,-2,-3,-4,-5,-6,-7,-8 L73552-3WG167470-7 LD CVORTHOP LEACHATE 11/22/2019 7:30 11/22/2019 11:29 WG167470-1,-2,-3,-4,-5,-6,-7,-8 L73704-4WG167470-8 MS CVORTHOP LEACHATE 11/22/2019 7:30 11/22/2019 12:27 WG167470-1,-2,-3,-4,-5,-6,-7,-8 L73704-4


Page 7 of 12


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 11/18/2019 14:45 11/26/2019 10:00 12/2/2019 14:53 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 11/18/2019 14:45 11/26/2019 10:00 12/2/2019 14:53 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-1 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 13:02 11/26/2019 10:00 12/2/2019 13:00 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-1 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 13:02 11/26/2019 10:00 12/2/2019 13:00 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-2 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 13:07 11/26/2019 10:00 12/2/2019 13:02 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-2 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 13:07 11/26/2019 10:00 12/2/2019 13:02 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-3 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 12:02 11/26/2019 10:00 12/2/2019 13:08 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-3 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 12:02 11/26/2019 10:00 12/2/2019 13:08 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-4 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 12:06 11/26/2019 10:00 12/2/2019 13:10 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-4 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 12:06 11/26/2019 10:00 12/2/2019 13:10 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-5 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 12:10 11/26/2019 10:00 12/2/2019 13:19 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-5 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 12:10 11/26/2019 10:00 12/2/2019 13:19 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-6 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 12:14 11/26/2019 10:00 12/2/2019 13:21 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-6 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 12:14 11/26/2019 10:00 12/2/2019 15:07 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-8 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 11:31 11/26/2019 10:00 12/2/2019 13:23 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-8 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 11:31 11/26/2019 10:00 12/2/2019 15:20 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-9 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 11:35 11/26/2019 10:00 12/2/2019 13:25 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-9 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 11:35 11/26/2019 10:00 12/2/2019 15:22 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-10 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 8:54 11/26/2019 10:00 12/2/2019 13:27 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-10 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 8:54 11/26/2019 10:00 12/2/2019 13:27 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-11 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 8:33 11/26/2019 10:00 12/2/2019 13:29 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-11 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 8:33 11/26/2019 10:00 12/2/2019 13:29 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-12 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 8:32 11/26/2019 10:00 12/2/2019 13:31 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-12 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 8:32 11/26/2019 10:00 12/2/2019 13:31 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-13 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 8:32 11/26/2019 10:00 12/2/2019 13:33 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-13 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 8:32 11/26/2019 10:00 12/2/2019 13:33 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-14 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 8:31 11/26/2019 10:00 12/2/2019 13:35 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-14 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 8:31 11/26/2019 10:00 12/2/2019 13:35 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-15 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 8:30 11/26/2019 10:00 12/2/2019 13:36 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-15 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 8:30 11/26/2019 10:00 12/2/2019 13:36 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-16 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 8:28 11/26/2019 10:00 12/2/2019 13:46 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-16 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 8:28 11/26/2019 10:00 12/2/2019 13:46 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-17 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 8:27 11/26/2019 10:00 12/2/2019 13:48 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-17 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 8:27 11/26/2019 10:00 12/2/2019 13:48 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-19 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:34 11/26/2019 10:00 12/2/2019 13:50 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-19 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:34 11/26/2019 10:00 12/2/2019 13:50 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-20 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:34 11/26/2019 10:00 12/2/2019 13:52 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-20 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:34 11/26/2019 10:00 12/2/2019 13:52 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-21 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:33 11/26/2019 10:00 12/2/2019 13:54 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-21 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:33 11/26/2019 10:00 12/2/2019 13:54 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-22 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:33 11/26/2019 10:00 12/2/2019 13:56 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-22 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:33 11/26/2019 10:00 12/2/2019 13:56 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-23 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:32 11/26/2019 10:00 12/2/2019 14:03 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-23 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:32 11/26/2019 10:00 12/2/2019 15:24 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-24 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:32 11/26/2019 10:00 12/2/2019 14:19 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-24 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:32 11/26/2019 10:00 12/2/2019 14:19 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-25 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:31 11/26/2019 10:00 12/2/2019 14:21 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-25 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:31 11/26/2019 10:00 12/2/2019 14:21 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-26 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:30 11/26/2019 10:00 12/2/2019 15:12 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-26 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:30 11/26/2019 10:00 12/2/2019 15:12 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-27 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:29 11/26/2019 10:00 12/2/2019 15:14 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-27 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:29 11/26/2019 10:00 12/2/2019 15:14 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-28 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:29 11/26/2019 10:00 12/2/2019 15:16 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-28 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:29 11/26/2019 10:00 12/2/2019 15:16 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-29 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 9:28 11/26/2019 10:00 12/2/2019 15:18 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-29 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 9:28 11/26/2019 10:00 12/2/2019 15:18 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-31 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 10:49 11/26/2019 10:00 12/2/2019 14:30 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-31 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 10:49 11/26/2019 10:00 12/2/2019 14:30 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-32 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 10:49 11/26/2019 10:00 12/2/2019 14:40 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-32 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 10:49 11/26/2019 10:00 12/2/2019 14:40 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-33 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 10:48 11/26/2019 10:00 12/2/2019 14:42 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-33 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 10:48 11/26/2019 10:00 12/2/2019 14:42 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6


Page 8 of 12

L73695-34 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 10:47 11/26/2019 10:00 12/2/2019 14:44 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-34 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 10:47 11/26/2019 10:00 12/2/2019 14:44 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-35 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 10:46 11/26/2019 10:00 12/2/2019 14:45 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12L73695-35 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 10:46 11/26/2019 10:00 12/2/2019 14:45 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6L73695-39 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 12:06 11/26/2019 10:00 12/2/2019 14:47 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 FREP_L73695-3L73695-39 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 12:06 11/26/2019 10:00 12/2/2019 14:47 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 FREP_L73695-3L73695-55 421235 MAJOR LAKES (wtr col) CVTOTN FRESH WTR 11/25/2019 12:16 11/26/2019 10:00 12/2/2019 14:49 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 FREP_L73695-6L73695-55 421235 MAJOR LAKES (wtr col) CVTOTP FRESH WTR 11/25/2019 12:16 11/26/2019 10:00 12/2/2019 15:08 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 FREP_L73695-6WG167531-1 MB CVTOTN BLANK WTR 11/26/2019 10:00 12/2/2019 12:52 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 MB1 191126 1000WG167531-1 MB CVTOTP BLANK WTR 11/26/2019 10:00 12/2/2019 12:52 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 MB1 191126 1000WG167531-2 SB CVTOTN BLANK WTR 11/26/2019 10:00 12/2/2019 12:54 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 WG167531-1WG167531-2 SB CVTOTP BLANK WTR 11/26/2019 10:00 12/2/2019 12:54 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 WG167531-1WG167531-3 LCS CVTOTN BLANK WTR 11/26/2019 10:00 12/2/2019 12:56 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 LEVEL1WG167531-3 LCS CVTOTP BLANK WTR 11/26/2019 10:00 12/2/2019 12:56 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 LEVEL1WG167531-4 MDLCK CVTOTN BLANK WTR 11/26/2019 10:00 12/2/2019 12:58 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 LEVEL1WG167531-4 MDLCK CVTOTP BLANK WTR 11/26/2019 10:00 12/2/2019 12:58 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 LEVEL1WG167531-5 LD CVTOTN FRESH WTR 11/26/2019 10:00 12/2/2019 13:04 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73695-2WG167531-5 LD CVTOTP FRESH WTR 11/26/2019 10:00 12/2/2019 13:04 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 L73695-2WG167531-6 MS CVTOTN FRESH WTR 11/26/2019 10:00 12/2/2019 13:06 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73695-2WG167531-6 MS CVTOTP FRESH WTR 11/26/2019 10:00 12/2/2019 13:06 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 L73695-2WG167531-7 MB CVTOTN BLANK WTR 11/26/2019 10:00 12/2/2019 13:59 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 MB2 191126 1000WG167531-7 MB CVTOTP BLANK WTR 11/26/2019 10:00 12/2/2019 13:59 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 MB2 191126 1000WG167531-8 LCS CVTOTN BLANK WTR 11/26/2019 10:00 12/2/2019 14:01 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 LEVEL1WG167531-8 LCS CVTOTP BLANK WTR 11/26/2019 10:00 12/2/2019 14:01 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 LEVEL1WG167531-9 LD CVTOTN FRESH WTR 11/26/2019 10:00 12/2/2019 14:13 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73695-23WG167531-9 LD CVTOTP FRESH WTR 11/26/2019 10:00 12/2/2019 14:13 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 L73695-23WG167531-10 MS CVTOTN FRESH WTR 11/26/2019 10:00 12/2/2019 14:15 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73695-23WG167531-10 MS CVTOTP FRESH WTR 11/26/2019 10:00 12/2/2019 14:15 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 L73695-23WG167531-11 LD CVTOTN STORM WTR 11/26/2019 10:00 12/2/2019 14:55 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73552-4WG167531-11 LD CVTOTP STORM WTR 11/26/2019 10:00 12/2/2019 14:55 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 L73552-4WG167531-12 MS CVTOTN STORM WTR 11/26/2019 10:00 12/2/2019 14:57 WG167531-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12 L73552-4WG167531-12 MS CVTOTP STORM WTR 11/26/2019 10:00 12/2/2019 14:57 WG167531-7,-8,-9,-10,-11,-12,-1,-2,-3,-4,-5,-6 L73552-4


Page 9 of 12

WG167730 DOC and TOC

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73485-8 421422-CHGW-OS SWD-CHGW-OS Cedar Hills Groundwater Off-Site CVTOC GRND WTR 12/5/2019 9:30 12/12/2019 1:09 12/12/2019 1:09 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 11/18/2019 13:53 11/20/2019 9:15 12/11/2019 22:34 WG167730-7,-8,-9,-10,-11L73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 11/18/2019 13:53 12/11/2019 20:33 12/11/2019 20:33 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 11/18/2019 13:52 11/20/2019 9:15 12/12/2019 0:03 WG167730-7,-8,-9,-10,-11L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 11/18/2019 13:52 12/11/2019 20:18 12/11/2019 20:18 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 11/18/2019 14:47 11/20/2019 9:15 12/11/2019 23:08 WG167730-7,-8,-9,-10,-11L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 11/18/2019 14:47 12/11/2019 20:10 12/11/2019 20:10 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 11/18/2019 14:45 11/20/2019 9:15 12/11/2019 23:56 WG167730-7,-8,-9,-10,-11L73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 11/18/2019 14:45 12/11/2019 21:20 12/11/2019 21:20 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 11/18/2019 14:22 11/20/2019 9:15 12/11/2019 23:16 WG167730-7,-8,-9,-10,-11L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 11/18/2019 14:22 12/11/2019 21:31 12/11/2019 21:31 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 11/18/2019 14:20 11/20/2019 9:15 12/11/2019 23:48 WG167730-7,-8,-9,-10,-11L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 11/18/2019 14:20 12/11/2019 21:38 12/11/2019 21:38 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 11/18/2019 14:40 11/20/2019 9:15 12/11/2019 23:24 WG167730-7,-8,-9,-10,-11L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 11/18/2019 14:40 12/11/2019 21:49 12/11/2019 21:49 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 11/18/2019 14:36 11/20/2019 9:15 12/11/2019 23:40 WG167730-7,-8,-9,-10,-11L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 11/18/2019 14:36 12/11/2019 21:56 12/11/2019 21:56 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 11/18/2019 14:36 11/20/2019 9:15 12/11/2019 23:32 WG167730-7,-8,-9,-10,-11 FREPL73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 11/18/2019 14:36 12/11/2019 22:04 12/11/2019 22:04 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 FREPL73716-3 421422-CHLS-M_MOD SWD-CHLS-M_Mod Cedar Hills Leachate Monthly Modified CVTOC LEACHATE 11/21/2019 7:25 12/12/2019 2:03 12/12/2019 2:03 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73740-7 421422-DUGW SWD-DUGW Duvall Groundwater Quarterly CVTOC GRND WTR 12/2/2019 0:00 12/12/2019 0:56 12/12/2019 0:56 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73742-1 421422-DUGW SWD-DUGW Duvall Groundwater Quarterly CVTOC GRND WTR 12/4/2019 9:50 12/12/2019 1:15 12/12/2019 1:15 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73742-3 421422-DUGW SWD-DUGW Duvall Groundwater Quarterly CVTOC GRND WTR 12/4/2019 10:40 12/12/2019 1:23 12/12/2019 1:23 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6L73742-4 421422-DUGW SWD-DUGW Duvall Groundwater Quarterly CVTOC GRND WTR 12/4/2019 11:40 12/12/2019 1:32 12/12/2019 1:32 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6WG167730-1 MDLCK CVTOC BLANK WTR 12/11/2019 19:24 12/11/2019 19:24 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 LEVEL1WG167730-2 MB CVTOC BLANK WTR 12/11/2019 19:41 12/11/2019 19:41 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 MB1 12/11/19WG167730-3 SB CVTOC BLANK WTR 12/11/2019 19:47 12/11/2019 19:47 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 WG167730-2WG167730-4 LCS CVTOC BLANK WTR 12/11/2019 19:55 12/11/2019 19:55 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 LEVEL1WG167730-5 LD CVTOC STORM WTR 12/11/2019 20:40 12/11/2019 20:40 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 L73552-1WG167730-6 MS CVTOC STORM WTR 12/11/2019 20:48 12/11/2019 20:48 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 L73552-1WG167730-7 MB CVDOC BLANK WTR 11/20/2019 9:15 12/11/2019 22:11 WG167730-7,-8,-9,-10,-11 MB1 11/20/19WG167730-8 SB CVDOC BLANK WTR 11/20/2019 9:15 12/11/2019 22:19 WG167730-7,-8,-9,-10,-11 WG167730-7WG167730-9 LCS CVDOC BLANK WTR 12/11/2019 22:27 12/11/2019 22:27 WG167730-7,-8,-9,-10,-11 LEVEL1WG167730-10 LD CVDOC STORM WTR 11/20/2019 9:15 12/12/2019 0:11 WG167730-7,-8,-9,-10,-11 L73552-2WG167730-11 MS CVDOC STORM WTR 11/20/2019 9:15 12/12/2019 0:19 WG167730-7,-8,-9,-10,-11 L73552-2WG167730-12 LD CVTOC GRND WTR 12/12/2019 1:39 12/12/2019 1:39 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 L73742-4WG167730-13 MS CVTOC GRND WTR 12/12/2019 1:46 12/12/2019 1:46 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 L73742-4WG167730-14 LD CVTOC LEACHATE 12/12/2019 2:11 12/12/2019 2:11 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 L73716-3WG167730-15 MS CVTOC LEACHATE 12/12/2019 2:19 12/12/2019 2:19 WG167730-12,-13,-14,-15,-2,-3,-4,-5,-1,-6 L73716-3


Page 10 of 12


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 11/18/2019 13:53 11/18/2019 13:53 11/18/2019 13:53 WG167773-1,-2L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 11/18/2019 13:52 11/18/2019 13:52 11/18/2019 13:52 WG167773-1,-2L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 11/18/2019 14:47 11/18/2019 14:47 11/18/2019 14:47 WG167773-1,-2L73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 11/18/2019 14:45 11/18/2019 14:45 11/18/2019 14:45 WG167773-1,-2L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 11/18/2019 14:22 11/18/2019 14:22 11/18/2019 14:22 WG167773-1,-2L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 11/18/2019 14:20 11/18/2019 14:20 11/18/2019 14:20 WG167773-1,-2L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 11/18/2019 14:40 11/18/2019 14:40 11/18/2019 14:40 WG167773-1,-2L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 11/18/2019 14:36 11/18/2019 14:36 11/18/2019 14:36 WG167773-1,-2L73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS STORM WTR 11/18/2019 14:36 FREPL73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 11/18/2019 14:36 11/18/2019 14:36 11/18/2019 14:36 WG167773-1,-2 FREPWG167773-1 CS ESS-YSI-EXO BLANK WTR WG167773-1,-2 RANGE1WG167773-2 CS ESS-YSI-EXO BLANK WTR WG167773-1,-2 RANGE1


Page 11 of 12


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 11/18/2019 13:53 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4L73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 11/18/2019 13:53 12/9/2019 6:00 12/17/2019 16:26 WG167685-1,-2,-3,-4L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 11/18/2019 13:52 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 11/18/2019 13:52 12/9/2019 6:00 12/17/2019 16:37 WG167685-1,-2,-3,-4L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 11/18/2019 14:47 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 11/18/2019 14:47 12/9/2019 6:00 12/17/2019 16:41 WG167685-1,-2,-3,-4L73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 11/18/2019 14:45 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4L73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 11/18/2019 14:45 12/9/2019 6:00 12/17/2019 16:45 WG167685-1,-2,-3,-4L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 11/18/2019 14:22 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 11/18/2019 14:22 12/9/2019 6:00 12/17/2019 16:48 WG167685-1,-2,-3,-4L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 11/18/2019 14:20 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 11/18/2019 14:20 12/9/2019 6:00 12/17/2019 16:52 WG167685-1,-2,-3,-4L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 11/18/2019 14:40 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 11/18/2019 14:40 12/9/2019 6:00 12/17/2019 17:04 WG167685-1,-2,-3,-4L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 11/18/2019 14:36 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 11/18/2019 14:36 12/9/2019 6:00 12/17/2019 17:07 WG167685-1,-2,-3,-4L73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 11/18/2019 14:36 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4 FREPL73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 11/18/2019 14:36 12/9/2019 6:00 12/17/2019 17:11 WG167685-1,-2,-3,-4 FREPWG167685-1 MB MTHARD-ICPMS BLANK WTR 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4 METHOD BLANKWG167685-1 MB MTICPMS BLANK WTR 12/9/2019 6:00 12/17/2019 16:18 WG167685-1,-2,-3,-4 METHOD BLANKWG167685-2 SB MTHARD-ICPMS BLANK WTR 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4 WG167685-1 MS-20WG167685-2 SB MTICPMS BLANK WTR 12/9/2019 6:00 12/17/2019 16:22 WG167685-1,-2,-3,-4 WG167685-1 MS-20WG167685-3 MS MTHARD-ICPMS STORM WTR 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4 L73552-1 MS-20WG167685-3 MS MTICPMS STORM WTR 12/9/2019 6:00 12/17/2019 16:29 WG167685-1,-2,-3,-4 L73552-1 MS-20WG167685-4 MSD MTHARD-ICPMS STORM WTR 12/9/2019 6:00 12/19/2019 6:58 WG167685-1,-2,-3,-4WG167685-4 MSD MTICPMS STORM WTR 12/9/2019 6:00 12/17/2019 16:33 WG167685-1,-2,-3,-4

WG167685-3 L73552-1 MS-20


Page 12 of 12


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73552-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 11/18/2019 13:53 12/10/2019 7:20 12/17/2019 17:23 WG167712-1,-2,-3,-4L73552-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 11/18/2019 13:52 12/10/2019 7:20 12/17/2019 17:26 WG167712-1,-2,-3,-4L73552-3 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 11/18/2019 14:47 12/10/2019 7:20 12/17/2019 17:30 WG167712-1,-2,-3,-4L73552-4 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 11/18/2019 14:45 12/10/2019 7:20 12/17/2019 17:34 WG167712-1,-2,-3,-4L73552-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 11/18/2019 14:22 12/10/2019 7:20 12/17/2019 17:38 WG167712-1,-2,-3,-4L73552-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 11/18/2019 14:20 12/10/2019 7:20 12/17/2019 17:49 WG167712-1,-2,-3,-4L73552-7 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 11/18/2019 14:40 12/10/2019 7:20 12/17/2019 17:53 WG167712-1,-2,-3,-4L73552-8 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 11/18/2019 14:36 12/10/2019 7:20 12/17/2019 17:57 WG167712-1,-2,-3,-4L73552-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 11/18/2019 14:36 12/10/2019 7:20 12/17/2019 18:01 WG167712-1,-2,-3,-4 FREPWG167712-1 MB MTICPMS-DISS BLANK WTR 12/10/2019 7:20 12/17/2019 17:15 WG167712-1,-2,-3,-4 METHOD BLANKWG167712-2 SB MTICPMS-DISS BLANK WTR 12/10/2019 7:20 12/17/2019 17:19 WG167712-1,-2,-3,-4 WG167712-1 MS-20WG167712-3 MS MTICPMS-DISS STORM WTR 12/10/2019 7:20 12/17/2019 18:05 WG167712-1,-2,-3,-4 L73552-9 MS-20

WG167712-4 MSD MTICPMS-DISS STORM WTR 12/10/2019 7:20 12/17/2019 18:08 WG167712-1,-2,-3,-4WG167712-3 L73552-9 MS-20

King County Environmental Laboratory QC Report Mercer Island Oyster Shell Project 3rd Storm 18NOV2019

Page 1 of 16

Workgroup: WG167447 Alkalinity, Bicarbonate and pH













LD:WG167447-8 L73625-1 Matrix: GRND WTR Listtype:CVALK Method:SM2320-B Project:421422-CHGW_EPZ Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 146 146 0 0--10

LD:WG167447-8 L73625-1 Matrix: GRND WTR Listtype:CVALK-BI Method:SM2320-B BI Project:421422-CHGW_EPZ Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitAlkalinity, Bicarbonate 1 5 mg CaCO3/L 146 146 0 0--10



Page 2 of 16


LD:WG167447-10 L73656-8 Matrix: FRESH WTR Listtype:CVALK Method:SM2320-B Project:422019 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 63 62.9 0 0--10






Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 250 249 99 90--110


Page 3 of 16

















Page 4 of 16














Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Phosphorus 0.005 0.01 mg/L 0.0068 0.0057 0--20


Page 5 of 16





LD:WG167461-11 L73671-1 Matrix: EFFLUENT Listtype:CVTOTP Method:SM4500-P-B,F Project:421430-300 Pkey:STD(Lab Duplicate)


MS:WG167461-12 L73671-1 Matrix: EFFLUENT Listtype:CVTOTP Method:SM4500-P-B,F Project:421430-300 Pkey:STD(Matrix Spike)



Page 6 of 16





LD:WG167466-3 L73649-2 Matrix: SALT WTR Listtype:CVTSS Method:SM2540-D Project:421250ON Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Suspended Solids 1 20 mg/L 1.6 2 0--25




LD:WG167466-6 L73650-27 Matrix: SALT WTR Listtype:CVTSS Method:SM2540-D Project:421250OS Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Suspended Solids 1 20 mg/L 1 1.4 0--25





Page 7 of 16

LD:WG167466-9 L73663-8 Matrix: SALT WTR Listtype:CVTSS Method:SM2540-D Project:421250BS Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Suspended Solids 1 20 mg/L 1.4 1.4 0--25


Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Suspended Solids 1.4 2.86 mg/L 21.4 20.6 4 0--25

LD:WG167466-11 L73372-5 Matrix: FRESH WTR Listtype:CVTSS Method:SM2540-D Project:421874-100 Pkey:STD(Lab Duplicate)



Page 8 of 16

Workgroup: WG167470 Ortho P















Page 9 of 16

















Page 10 of 16
















Page 11 of 16














Page 12 of 16

Workgroup: WG167730 DOC and TOC
















Page 13 of 16


Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitDissolved Organic Carbon 0.5 1 mg/L 3.54 3.73 5 0--20


Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitDissolved Organic Carbon 0.5 1 mg/L 3.54 10 12.8 92 75--125

LD:WG167730-12 L73742-4 Matrix: GRND WTR Listtype:CVTOC Method:SM5310-B Project:421422-DUGW Pkey:STD(Lab Duplicate)


MS:WG167730-13 L73742-4 Matrix: GRND WTR Listtype:CVTOC Method:SM5310-B Project:421422-DUGW Pkey:STD(Matrix Spike)


LD:WG167730-14 L73716-3 Matrix: LEACHATE Listtype:CVTOC Method:SM5310-B Project:421422-CHLS-M_MOD Pkey:STD(Lab Duplicate)


MS:WG167730-15 L73716-3 Matrix: LEACHATE Listtype:CVTOC Method:SM5310-B Project:421422-CHLS-M_MOD Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitTotal Organic Carbon 10 20 mg/L 35.9 200 229 96 75--125


Page 14 of 16

Workgroup: WG167773 Field Measurements

CS:WG167773-1 Matrix: BLANK WTR Listtype:ESS-YSI-EXO Method:KCEL SOP# 245 Project: Pkey:STD(Check Standard)

Parameter MDL RDL Units True Value CS Value % Rec. Qual Lab LimitConductivity, Field 0.5 10 umhos/cm 73.9 76.7 104 90--110pH, Field pH 6.86 6.83 0.03 0--.2

CS:WG167773-2 Matrix: BLANK WTR Listtype:ESS-YSI-EXO Method:KCEL SOP# 245 Project: Pkey:STD(Check Standard)

Parameter MDL RDL Units True Value CS Value % Rec. Qual Lab LimitConductivity, Field 0.5 10 umhos/cm 73.9 75.6 102 90--110pH, Field pH 6.86 6.9 0.04 0--.2Barometric Pressure, Field mmHg 99.3 754.4 759.7 700--800


Page 15 of 16



MB:WG167685-1 Matrix: BLANK WTR Listtype:MTICPMS Method:EPA 200.8 (MOD) Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualMagnesium, Total, ICP-MS 50 50 ug/L <MDLCalcium, Total, ICP-MS 50 50 ug/L <MDLCopper, Total, ICP-MS 0.2 2 ug/L <MDLZinc, Total, ICP-MS 0.5 2.5 ug/L <MDLCadmium, Total, ICP-MS 0.05 0.25 ug/L <MDLLead, Total, ICP-MS 0.1 0.5 ug/L <MDL




Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitMagnesium, Total, ICP-MS 50 50 ug/L <MDL 5000 5260 105 85--115Calcium, Total, ICP-MS 50 50 ug/L <MDL 5000 4970 99 85--115Copper, Total, ICP-MS 0.2 2 ug/L <MDL 20 21.1 106 85--115Zinc, Total, ICP-MS 0.5 2.5 ug/L <MDL 20 20.9 104 85--115Cadmium, Total, ICP-MS 0.05 0.25 ug/L <MDL 20 19.6 98 85--115Lead, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 21 105 85--115

MSD:WG167685-4 MS:WG167685-3 L73552-1 Matrix: STORM WTR Listtype:MTHARD-ICPMS Method:EPA 200.8 (MOD)*SM2340B Project:421195-181 Pkey:STD(Matrix Spike Duplicate, Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab Limit True Value MSD Value % Rec. Qual RPD Qual Lab LimitHardness, Calc 0.331 0.331 mg CaCO3/L 11.8 33.1 45.2 101 75--125 33.1 45.5 102 1 0--20

MSD:WG167685-4 MS:WG167685-3 L73552-1 Matrix: STORM WTR Listtype:MTICPMS Method:EPA 200.8 (MOD) Project:421195-181 Pkey:STD(Matrix Spike Duplicate, Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab Limit True Value MSD Value % Rec. Qual RPD Qual Lab LimitMagnesium, Total, ICP-MS 50 50 ug/L 773 5000 5920 103 75--125 5000 5970 104 1 0--20Calcium, Total, ICP-MS 50 50 ug/L 3430 5000 8350 98 75--125 5000 8380 99 0 0--20Copper, Total, ICP-MS 0.2 2 ug/L 6.52 20 27.7 106 75--125 20 27.7 106 0 0--20Zinc, Total, ICP-MS 0.5 2.5 ug/L 202 20 223 4xRule 75--125 20 223 4xRule 0 0--20Cadmium, Total, ICP-MS 0.05 0.25 ug/L <MDL 20 19.2 96 75--125 20 19.1 96 0 0--20Lead, Total, ICP-MS 0.1 0.5 ug/L 1.48 20 22.1 103 75--125 20 22.8 106 3 0--20


Page 16 of 16




Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitCopper, Dissolved, ICP-MS 0.2 2 ug/L <MDL 20 21.1 105 85--115Zinc, Dissolved, ICP-MS 0.5 2.5 ug/L <MDL 20 20.6 103 85--115Cadmium, Dissolved, ICP-MS 0.05 0.25 ug/L <MDL 20 19.2 96 85--115Lead, Dissolved, ICP-MS 0.1 0.5 ug/L <MDL 20 20.6 103 85--115

MSD:WG167712-4 MS:WG167712-3 FREP:L73552-9 Matrix: STORM WTR Listtype:MTICPMS-DISS Method:EPA 200.8 (MOD) Project:421195-181 Pkey:STD(Matrix Spike Duplicate, Matrix Spike)

Parameter MDL RDL Units FREP Value True Value MS Value % Rec. Qual Lab Limit True Value MSD Value % Rec. Qual RPD Qual Lab LimitCopper, Dissolved, ICP-MS 0.2 2 ug/L 8.86 20 30.1 106 75--125 20 30.2 107 0 0--20Zinc, Dissolved, ICP-MS 0.5 2.5 ug/L 54.5 20 74.6 101 75--125 20 75.5 105 1 0--20Cadmium, Dissolved, ICP-MS 0.05 0.25 ug/L <MDL 20 19.2 96 75--125 20 19.2 96 0 0--20Lead, Dissolved, ICP-MS 0.1 0.5 ug/L 0.23 20 21 104 75--125 20 21.2 105 1 0--20

======================================================================================If the following parameters are reported, values in the RPD column are actually Absolute Differences: pH, Field Salinity, Field Sample Depth Sample Temperature, Field4xRule indicates no MS/MSD recovery was calculated due to the 4x rule.


bourbonaisk

Sticky Note

Note: These are the original fieldsheets and do not reflect the locator corrections discussed in the cover letter. KB 1/21/2020



King County Environmental Laboratory January 21, 2020 Stormwater Action Monitoring Effectiveness Studies Pilot Study for Non-Proprietary Dissolved Metals Treatment: Oyster Shell Retrofits in Catch Basins Storm samples collected December 18, 2019 L73371-5 through -9 Oyster Shell Blank collected December 30, 2019 L73739-1 Notes:

• Neither Inflow nor outflow samples were collected at catch basins 10-109 and 10-108. There was evidence that the sampler line at 10-108-IN had been broken, possibly damaged by a car on the roadway.

• A second sample was collected at location 10-365-OUT • Field measurements were not collected at any of the sites because storm water was

no longer flowing through the system when the sites were visited. The storm had occurred during the preceding night, with the last measured precipitation at 03:30.

Conventionals QC Information Samples were analyzed in the following workgroups: DOC: WG167967 ortho-phosphate-P: WG167906 pH: WG167911 TOC: WG168002 Total N: WG168180 Total P: WG168180 TSS: WG167948 All QC results for conventionals parameters were within laboratory control limits. Note the holding time for pH analysis is <15 minutes. All sample pH results were qualified H since analysis occurred after the holding time had expired. The filtration holding time for ortho-phosphate-P (ortho-P) analysis is <15 minutes. The holding time had expired by the time samples were delivered to the laboratory. Thus, ortho-P results for all samples were qualified H.

During TSS analysis, the lab duplicate (LD) relative percent difference (RPD) exceeded the control limit. Sample L73731-6 was used for LD preparation. Re-preparation and re-analysis was not possible since the entire volume provided for TSS analysis had been used. All other method QC was acceptable, so TSS results were not qualified on the basis of this exceedance. Field Measurements QC Information WG168235 Field measurements were not collected during this storm event due to lack of flowing storm water. Metals QC Information Total and dissolved fractions for the following elements were analyzed: cadmium, calcium (total only), copper, lead, magnesium (total only) and zinc. Hardness values were calculated. Total Metals and Hardness by ICPMS WG168078 All calculable QC results for total metals parameters were within laboratory control limits. Dissolved Metals by ICPMS WG168083 All calculable QC results for dissolved metals parameters were within laboratory control limits.

Sample Data


1/23/2020 K:\LPM Reports\WLRD Science Reimbursable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17984 MercerIslandOysterShellRetrofit_4thStorm_18DEC2019 Page 1 of 4


Parameters Value Qual MDL RDL Units Value Qual MDL RDL Units Value Qual MDL RDL UnitsCV SM2540-DTotal Suspended SolidsCV SM4500-H-BpHCV SM4500-N-CTotal NitrogenCV SM4500-P-B,FTotal PhosphorusCV SM4500-P-FOrthophosphate PhosphorusCV SM5310-BDissolved Organic CarbonTotal Organic CarbonES KCEL SOP# 245Conductivity, FieldDissolved Oxygen, FieldpH, FieldSample Temperature, FieldES NONESample Function

Sample Information none none none

MT EPA 200.8 (MOD)Cadmium, Dissolved, ICP-MSCadmium, Total, ICP-MSCalcium, Total, ICP-MSCopper, Dissolved, ICP-MSCopper, Total, ICP-MSLead, Dissolved, ICP-MSLead, Total, ICP-MSMagnesium, Total, ICP-MSZinc, Dissolved, ICP-MSZinc, Total, ICP-MSMT EPA 200.8 (MOD)*SM2340BHardness, Calc

not analyzed; paired with -3 and -4, which were not collected/analyzed, see FSU_DAF_WG168235

not analyzed; paired with -3 and -4, which were not collected/analyzed, see FSU_DAF_WG168235

not collected, probably a broken sample line, see FSU_DAF_WG168235



ParametersCV SM2540-DTotal Suspended SolidsCV SM4500-H-BpHCV SM4500-N-CTotal NitrogenCV SM4500-P-B,FTotal PhosphorusCV SM4500-P-FOrthophosphate PhosphorusCV SM5310-BDissolved Organic CarbonTotal Organic CarbonES KCEL SOP# 245Conductivity, FieldDissolved Oxygen, FieldpH, FieldSample Temperature, FieldES NONESample Function

Sample Information


Project: 421195-181 Project: 421195-181 Project: 421195-181Locator: 10-108-OUT Locator: 10-647-IN Locator: 10-647-OUTDescrip: CATCH BASIN OUTFLO Descrip: CATCH BASIN INFLOW Descrip: CATCH BASIN OUTFLOSample: L73731-4 Sample: L73731-5 Sample: L73731-6Matrix: LG STORM WTR Matrix: LG STORM WTR Matrix: LG STORM WTRColDate: 12/18/19 19:17 ColDate: 12/18/19 19:07 ColDate: 12/18/19 19:04WET Weight Basis WET Weight Basis WET Weight Basis


5.6 0.5 1 mg/L 6 1 2 mg/L

7.62 H pH 7.52 H pH

1.22 0.05 0.1 mg/L 1.33 0.05 0.1 mg/L

0.109 0.005 0.01 mg/L 0.118 0.005 0.01 mg/L

0.0864 H 0.005 0.02 mg/L 0.0857 H 0.005 0.02 mg/L

3.41 0.5 1 mg/L 2.89 0.5 1 mg/L3.93 1 2 mg/L 3.29 1 2 mg/L

TA 0.5 10 umhos/cm TA 0.5 10 umhos/cmTA 0.5 1 mg/L TA 0.5 1 mg/L

pH pHdeg C deg C

none

<MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L<MDL 0.05 0.25 ug/L <MDL 0.05 0.25 ug/L

5770 50 50 ug/L 5940 50 50 ug/L6.59 0.2 2 ug/L 6.73 0.2 2 ug/L9.4 0.2 2 ug/L 9.38 0.2 2 ug/L

0.16 <RDL 0.1 0.5 ug/L 0.17 <RDL 0.1 0.5 ug/L0.763 0.1 0.5 ug/L 0.779 0.1 0.5 ug/L1930 50 50 ug/L 2110 50 50 ug/L52.9 0.5 2.5 ug/L 52.1 0.5 2.5 ug/L66.2 0.5 2.5 ug/L 67.4 0.5 2.5 ug/L

22.3 0.331 0.331 mg CaCO3/L 23.5 0.331 0.331 mg CaCO3/L

not analyzed, paired sample with -3, which did not collect a sample, see FSU_DAF_WG168235




Sample Information


Project: 421195-181 Project: 421195-181 Project: 421195-181Locator: 10-365-IN Locator: 10-365-OUT Locator: 10-647-OUTDescrip: CATCH BASIN INFLOW Descrip: CATCH BASIN OUTFLO Descrip: CATCH BASIN OUTFLOSample: L73731-7 Sample: L73731-8 Sample: L73731-9Matrix: LG STORM WTR Matrix: LG STORM WTR Matrix: LG STORM WTRColDate: 12/18/19 19:51 ColDate: 12/18/19 19:48 ColDate: 12/18/19 19:04WET Weight Basis WET Weight Basis WET Weight Basis


5.68 0.53 1.05 mg/L 4.59 0.51 1.02 mg/L 7.4 0.5 1 mg/L

7.38 H pH 7.38 H pH 7.52 H pH

1.23 0.05 0.1 mg/L 1.23 0.05 0.1 mg/L 1.31 0.05 0.1 mg/L

0.119 0.005 0.01 mg/L 0.115 0.005 0.01 mg/L 0.113 0.005 0.01 mg/L

0.0775 H 0.005 0.02 mg/L 0.08 H 0.005 0.02 mg/L 0.0844 H 0.005 0.02 mg/L


TA 0.5 10 umhos/cm TA 0.5 10 umhos/cm TA 0.5 10 umhos/cmTA 0.5 1 mg/L TA 0.5 1 mg/L TA 0.5 1 mg/L

pH pH pHdeg C deg C deg C

FREP @ L73731-6 none


4440 50 50 ug/L 4370 50 50 ug/L 6040 50 50 ug/L6.35 0.2 2 ug/L 6.29 0.2 2 ug/L 6.76 0.2 2 ug/L8.8 0.2 2 ug/L 8.79 0.2 2 ug/L 9.7 0.2 2 ug/L

0.14 <RDL 0.1 0.5 ug/L 0.13 <RDL 0.1 0.5 ug/L 0.17 <RDL 0.1 0.5 ug/L0.665 0.1 0.5 ug/L 0.671 0.1 0.5 ug/L 0.784 0.1 0.5 ug/L1030 50 50 ug/L 1030 50 50 ug/L 2110 50 50 ug/L52.7 0.5 2.5 ug/L 53.1 0.5 2.5 ug/L 52.8 0.5 2.5 ug/L

64 0.5 2.5 ug/L 64.7 0.5 2.5 ug/L 66.6 0.5 2.5 ug/L





Sample Information


Project: 421195-181Locator: BLANK1Descrip: BLANK1Sample: L73739-1Matrix: LA OTHR WTRColDate: 12/30/19 13:43WET Weight Basis

Value Qual MDL RDL Units

none

<MDL 0.05 0.25 ug/L39600 50 50 ug/L

4.28 0.2 2 ug/L

0.527 0.1 0.5 ug/L525 50 50 ug/L

12.8 0.5 2.5 ug/L

at 1243 Filled 4 L Glass Beaker w/ shells (in mesh bag) topped off with DI water, agitated every 15 minutes for 1 hr. Bag of shells contains rocks and many species of shellfish (e.g oysters, clams, gastropod)


1/23/2020 K:\LPM Reports\WLRD Science Reimbursable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17984 MercerIslandOysterShellRetrofit_4thStorm_18DEC2019_matrix Page 1 of 2


Tota

l Sus

pend

ed S

olid

s

pH Tota

l Nitr

ogen

Tota

l Pho

spho

rus

Ort

hoph

osph

ate

Phos

phor

us

Dis

solv

ed O

rgan

ic C

arbo

n

Tota

l Org

anic

Car

bon

Cal

cium

, Tot

al, I

CP-

MS

Cop

per,

Dis

solv

ed, I

CP-

MS

Cop

per,

Tota

l, IC

P-M

S

Lead

, Dis

solv

ed, I

CP-

MS

Lead

, Tot

al, I

CP-

MS

LOCATOR PROJECT SAMPLE COLLECTED mg/L pH mg/L mg/L mg/L mg/L mg/L ug/L ug/L ug/L ug/L ug/L10-109-IN 421195-181 L73731-1 12/18/2019 19:1710-109-OUT 421195-181 L73731-2 12/18/2019 19:1510-108-IN 421195-181 L73731-3 12/18/2019 19:2010-108-OUT 421195-181 L73731-4 12/18/2019 19:1710-647-IN 421195-181 L73731-5 12/18/2019 19:07 5.6 7.62 1.22 0.109 0.0864 3.41 3.93 5770 6.59 9.4 0.16 0.76310-647-OUT 421195-181 L73731-6 12/18/2019 19:04 6 7.52 1.33 0.118 0.0857 2.89 3.29 5940 6.73 9.38 0.17 0.77910-365-IN 421195-181 L73731-7 12/18/2019 19:51 5.68 7.38 1.23 0.119 0.0775 2.86 3.43 4440 6.35 8.8 0.14 0.66510-365-OUT 421195-181 L73731-8 12/18/2019 19:48 4.59 7.38 1.23 0.115 0.08 2.59 2.98 4370 6.29 8.79 0.13 0.67110-647-OUT 421195-181 L73731-9 12/18/2019 19:04 7.4 7.52 1.31 0.113 0.0844 3.22 3.54 6040 6.76 9.7 0.17 0.784BLANK1 421195-181 L73739-1 12/30/2019 13:43 39600 4.28 0.527* Not converted to dry weight basisIf a parameter/analyte appears twice in the column header, it implies that they were analyzed by two different method codes


1/23/2020 K:\LPM Reports\WLRD Science Reimbursable - 421195\Mercer Island\Oyster Shell Retrofit Project_2019\17984 MercerIslandOysterShellRetrofit_4thStorm_18DEC2019_matrix Page 2 of 2


LOCATOR PROJECT SAMPLE COLLECTED10-109-IN 421195-181 L73731-1 12/18/2019 19:1710-109-OUT 421195-181 L73731-2 12/18/2019 19:1510-108-IN 421195-181 L73731-3 12/18/2019 19:2010-108-OUT 421195-181 L73731-4 12/18/2019 19:1710-647-IN 421195-181 L73731-5 12/18/2019 19:0710-647-OUT 421195-181 L73731-6 12/18/2019 19:0410-365-IN 421195-181 L73731-7 12/18/2019 19:5110-365-OUT 421195-181 L73731-8 12/18/2019 19:4810-647-OUT 421195-181 L73731-9 12/18/2019 19:04BLANK1 421195-181 L73739-1 12/30/2019 13:43* Not converted to dry weight basisIf a parameter/analyte appears twice in the column header, it implies

Mag

nesi

um, T

otal

, IC

P-M

S

Zinc

, Dis

solv

ed, I

CP-

MS

Zinc

, Tot

al, I

CP-

MS

Har

dnes

s, C

alc

ug/L ug/L ug/L mg CaCO3/L

1930 52.9 66.2 22.32110 52.1 67.4 23.51030 52.7 64 15.31030 53.1 64.7 15.22110 52.8 66.6 23.8525 12.8


King County Environmental Laboratory Batch Report Mercer Island Oyster Shell Retrofit Study storm #4 18DEC2019

Page 1 of 10

WG167906 Dissolved Nutrients

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73731-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 12/18/2019 19:07 12/20/2019 8:30 12/20/2019 11:14 WG167906-6,-5,-8,-1,-2,-3,-4,-7

L73731-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 12/18/2019 19:04 12/20/2019 8:30 12/20/2019 10:02 WG167906-6,-5,-8,-1,-2,-3,-4,-7



L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVORTHOP STORM WTR 12/18/2019 19:04 12/20/2019 8:30 12/20/2019 10:20 WG167906-6,-5,-8,-1,-2,-3,-4,-7 FREP @ L73731-6

L73852-3 421422-CHLS-M SWD-CHLS-M Cedar Hills Leachate Monthly CVNH3-FL LEACHATE 12/17/2019 9:45 12/20/2019 8:30 12/20/2019 11:30 WG167906-1,-2,-3,-4,-9,-10

L73852-3 421422-CHLS-M SWD-CHLS-M Cedar Hills Leachate Monthly CVORTHOP LEACHATE 12/17/2019 9:45 12/20/2019 8:30 12/20/2019 10:39 WG167906-6,-5,-8,-1,-2,-3,-4,-7







L73868-1 421422-CHLS-M_MOD SWD-CHLS-M_Mod Cedar Hills Leachate Monthly Modified CVNH3-FL LEACHATE 12/19/2019 6:45 12/20/2019 8:30 12/20/2019 11:51 WG167906-1,-2,-3,-4,-9,-10






WG167906-1 MB CVNH3-FL BLANK WTR 12/20/2019 8:30 12/20/2019 9:40 WG167906-1,-2,-3,-4,-9,-10 MB4 12/20/19 8:30

WG167906-1 MB CVORTHOP BLANK WTR 12/20/2019 8:30 12/20/2019 9:40 WG167906-6,-5,-8,-1,-2,-3,-4,-7 MB4 12/20/19 8:30

WG167906-2 SB CVNH3-FL BLANK WTR 12/20/2019 8:30 12/20/2019 9:43 WG167906-1,-2,-3,-4,-9,-10 WG167906-1

WG167906-2 SB CVORTHOP BLANK WTR 12/20/2019 8:30 12/20/2019 9:43 WG167906-6,-5,-8,-1,-2,-3,-4,-7 WG167906-1

WG167906-3 LCS CVNH3-FL BLANK WTR 12/20/2019 9:46 12/20/2019 9:46 WG167906-1,-2,-3,-4,-9,-10 LEVEL1

WG167906-3 LCS CVORTHOP BLANK WTR 12/20/2019 9:46 12/20/2019 9:46 WG167906-6,-5,-8,-1,-2,-3,-4,-7 LEVEL1

WG167906-4 MDLCK CVNH3-FL BLANK WTR 12/20/2019 8:30 12/20/2019 9:48 WG167906-1,-2,-3,-4,-9,-10 LEVEL1

WG167906-4 MDLCK CVORTHOP BLANK WTR 12/20/2019 8:30 12/20/2019 9:48 WG167906-6,-5,-8,-1,-2,-3,-4,-7 LEVEL1

WG167906-5 LD CVORTHOP STORM WTR 12/20/2019 8:30 12/20/2019 11:16 WG167906-6,-5,-8,-1,-2,-3,-4,-7 L73731-5

WG167906-6 MS CVORTHOP STORM WTR 12/20/2019 8:30 12/20/2019 10:52 WG167906-6,-5,-8,-1,-2,-3,-4,-7 L73731-5

WG167906-7 LD CVORTHOP LEACHATE 12/20/2019 8:30 12/20/2019 10:26 WG167906-6,-5,-8,-1,-2,-3,-4,-7 L73852-7

WG167906-8 MS CVORTHOP LEACHATE 12/20/2019 8:30 12/20/2019 10:28 WG167906-6,-5,-8,-1,-2,-3,-4,-7 L73852-7

WG167906-9 LD CVNH3-FL LEACHATE 12/20/2019 8:30 12/20/2019 11:32 WG167906-1,-2,-3,-4,-9,-10 L73852-3

WG167906-10 MS CVNH3-FL LEACHATE 12/20/2019 8:30 12/20/2019 11:35 WG167906-1,-2,-3,-4,-9,-10 L73852-3


Page 2 of 10

WG167911 Alkalinity and pH





L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVPH STORM WTR 12/18/2019 19:04 12/19/2019 14:36 12/19/2019 14:36 WG167911-3,-4,-5 FREP @ L73731-6

L73749-1 421240A STREAMS MONITOR (surf wtr) CVALK FRESH WTR 12/17/2019 9:26 12/19/2019 11:58 12/19/2019 11:58













L73749-15 421240A STREAMS MONITOR (surf wtr) CVALK FRESH WTR 12/17/2019 12:35 12/19/2019 13:56 12/19/2019 13:56 FREP @ L73749-7












L73751-1 421874-510 City of Sammamish Monthly Stream Monitoring CVALK FRESH WTR 12/17/2019 9:45 12/19/2019 16:35 12/19/2019 16:35













WG167911-1,-2,-6,-7,-8,-9,-10,-11,-12,-13


Page 3 of 10

L73753-14 421240A STREAMS MONITOR (surf wtr) CVALK FRESH WTR 12/18/2019 8:44 12/19/2019 18:36 12/19/2019 18:36 FREP @ L73753-2















L73773-39 421235 MAJOR LAKES (wtr col) CVALK FRESH WTR 12/17/2019 10:22 12/19/2019 21:01 12/19/2019 21:01 FREP_P73773-40

L73773-40 421235 MAJOR LAKES (wtr col) CVALK FRESH WTR 12/17/2019 10:18 12/19/2019 21:09 12/19/2019 21:09




L73848-1 421155 Quality Assurance CVALK FRESH WTR 12/18/2019 0:00 12/19/2019 22:02 12/19/2019 22:02

L73848-2 421155 Quality Assurance CVALK FRESH WTR 12/18/2019 0:00 12/19/2019 22:10 12/19/2019 22:10

WG167911-1 MDLCK CVALK BLANK WTR 12/19/2019 11:41 12/19/2019 11:41 LEVEL1

WG167911-2 LCS CVALK BLANK WTR 12/19/2019 11:49 12/19/2019 11:49 LEVEL3




WG167911-6 LD CVALK FRESH WTR 12/19/2019 15:15 12/19/2019 15:15 L73750-4








WG167911-1,-2,-6,-7,-8,-9,-10,-11,-12,-13


Page 4 of 10

WG167948 TSS

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73731-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 12/18/2019 19:07 12/23/2019 12:41 12/23/2019 16:07 WG167948-1,-2,-3

L73731-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 12/18/2019 19:04 12/23/2019 12:41 12/23/2019 16:07 WG167948-1,-2,-3



L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTSS STORM WTR 12/18/2019 19:04 12/23/2019 12:41 12/23/2019 16:09 WG167948-1,-2,-3 FREP @ L73731-6

WG167948-1 MB CVTSS BLANK WTR 12/23/2019 12:41 12/23/2019 16:07 WG167948-1,-2,-3 MB1 191223

WG167948-2 LCS CVTSS BLANK WTR 12/23/2019 12:41 12/23/2019 16:07 WG167948-1,-2,-3 LEVEL1

WG167948-3 LD CVTSS STORM WTR 12/23/2019 12:41 12/23/2019 16:08 WG167948-1,-2,-3 L73731-6


Page 5 of 10

WG167967 DOC

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73731-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 12/18/2019 19:07 12/19/2019 14:05 12/23/2019 18:21

L73731-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 12/18/2019 19:04 12/19/2019 14:05 12/23/2019 18:13



L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVDOC STORM WTR 12/18/2019 19:04 12/19/2019 14:05 12/23/2019 17:50 FREP @ L73731-6

L73895-21 423670 HLKK CSO System Characterization (Hanford, Lander, King, KingdomeCVDOC STORM WTR 12/19/2019 0:00 12/21/2019 14:10 12/23/2019 16:30




















WG167967-1 MDLCK CVDOC BLANK WTR 12/23/2019 12:30 12/23/2019 12:30 LEVEL1

WG167967-2 MB CVDOC BLANK WTR 12/21/2019 14:10 12/23/2019 12:38 MB1 12/21/19

WG167967-3 SB CVDOC BLANK WTR 12/21/2019 14:10 12/23/2019 12:45 WG167967-2

WG167967-4 LCS CVDOC BLANK WTR 12/23/2019 12:53 12/23/2019 12:53 LEVEL1

WG167967-5 LD CVDOC STORM WTR 12/21/2019 14:10 12/23/2019 13:36 L73896-3

WG167967-6 MS CVDOC STORM WTR 12/21/2019 14:10 12/23/2019 13:44 L73896-3

WG167967-7 MB CVDOC BLANK WTR 12/19/2019 14:05 12/23/2019 17:01 MB1 12/19/19

WG167967-8 SB CVDOC BLANK WTR 12/19/2019 14:05 12/23/2019 17:08 WG167967-7

WG167967-9 LCS CVDOC BLANK WTR 12/23/2019 17:16 12/23/2019 17:16 LEVEL1

WG167967-10 LD CVDOC STORM WTR 12/19/2019 14:05 12/23/2019 18:29 L73731-5

WG167967-11 MS CVDOC STORM WTR 12/19/2019 14:05 12/23/2019 18:37 L73731-5

WG167967-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11


Page 6 of 10

WG168002 TOC

Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73731-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 12/18/2019 19:07 12/24/2019 12:26 12/24/2019 12:26 WG168002-1,-2,-3,-4,-5,-6,-7,-8




L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOC STORM WTR 12/18/2019 19:04 12/24/2019 13:00 12/24/2019 13:00 WG168002-1,-2,-3,-4,-5,-6,-7,-8 FREP @ L73731-6

L73843-4 421422-PUGW SWD-PUGW Puyallup Groundwater Quarterly CVTOC GRND WTR 12/23/2019 10:10 12/24/2019 10:53 12/24/2019 10:53 WG168002-1,-2,-3,-4,-5,-6,-7,-8















Page 7 of 10


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73731-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 12/18/2019 19:07 1/9/2020 11:09 1/14/2020 11:32 WG168180-1,-2,-3,-4,-5,-6

L73731-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 12/18/2019 19:07 1/9/2020 11:09 1/14/2020 11:32 WG168180-1,-2,-3,-4,-5,-6

L73731-6 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 12/18/2019 19:04 1/9/2020 11:09 1/14/2020 11:34 WG168180-1,-2,-3,-4,-5,-6






L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTN STORM WTR 12/18/2019 19:04 1/9/2020 11:09 1/14/2020 11:54 WG168180-1,-2,-3,-4,-5,-6 FREP @ L73731-6

L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits CVTOTP STORM WTR 12/18/2019 19:04 1/9/2020 11:09 1/14/2020 11:54 WG168180-1,-2,-3,-4,-5,-6 FREP @ L73731-6

WG168180-1 MB CVTOTN BLANK WTR 1/9/2020 11:09 1/14/2020 11:25 WG168180-1,-2,-3,-4,-5,-6 MB 200109 1109

WG168180-1 MB CVTOTP BLANK WTR 1/9/2020 11:09 1/14/2020 11:25 WG168180-1,-2,-3,-4,-5,-6 MB 200109 1109

WG168180-2 SB CVTOTN BLANK WTR 1/9/2020 11:09 1/14/2020 11:27 WG168180-1,-2,-3,-4,-5,-6 WG168180-1

WG168180-2 SB CVTOTP BLANK WTR 1/9/2020 11:09 1/14/2020 11:27 WG168180-1,-2,-3,-4,-5,-6 WG168180-1

WG168180-3 LCS CVTOTN BLANK WTR 1/9/2020 11:09 1/14/2020 11:29 WG168180-1,-2,-3,-4,-5,-6 LEVEL1

WG168180-3 LCS CVTOTP BLANK WTR 1/9/2020 11:09 1/14/2020 11:29 WG168180-1,-2,-3,-4,-5,-6 LEVEL1

WG168180-4 MDLCK CVTOTN BLANK WTR 1/9/2020 11:09 1/14/2020 11:31 WG168180-1,-2,-3,-4,-5,-6 LEVEL1

WG168180-4 MDLCK CVTOTP BLANK WTR 1/9/2020 11:09 1/14/2020 11:31 WG168180-1,-2,-3,-4,-5,-6 LEVEL1

WG168180-5 LD CVTOTN STORM WTR 1/9/2020 11:09 1/14/2020 11:36 WG168180-1,-2,-3,-4,-5,-6 L73731-6

WG168180-5 LD CVTOTP STORM WTR 1/9/2020 11:09 1/14/2020 11:36 WG168180-1,-2,-3,-4,-5,-6 L73731-6

WG168180-6 MS CVTOTN STORM WTR 1/9/2020 11:09 1/14/2020 11:38 WG168180-1,-2,-3,-4,-5,-6 L73731-6

WG168180-6 MS CVTOTP STORM WTR 1/9/2020 11:09 1/14/2020 11:38 WG168180-1,-2,-3,-4,-5,-6 L73731-6


Page 8 of 10


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL73731-1 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS STORM WTR 12/18/2019 19:17

L73731-2 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS STORM WTR 12/18/2019 19:15



L73731-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 12/18/2019 19:07 12/18/2019 19:07 12/18/2019 19:07




L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS STORM WTR 12/18/2019 19:04 FREP @ L73731-6

L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits ESS-YSI-EXO STORM WTR 12/18/2019 19:04 12/18/2019 19:04 12/18/2019 19:04 FREP @ L73731-6


Page 9 of 10


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL71647-1 421185-200 Carkeek CSO Plant MTHARD-ICPMS STORM WTR 12/20/2019 10:47 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6

L71647-1 421185-200 Carkeek CSO Plant MTICPMS STORM WTR 12/20/2019 10:47 1/7/2020 8:00 1/9/2020 10:12 WG168078-1,-2,-3,-4,-5,-6

L72343-1 421185-400 Hend-MLK CSO Plant MTHARD-ICPMS STORM WTR 12/20/2019 6:47 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6

L72343-1 421185-400 Hend-MLK CSO Plant MTICPMS STORM WTR 12/20/2019 6:47 1/7/2020 8:00 1/9/2020 10:23 WG168078-1,-2,-3,-4,-5,-6

L73731-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 12/18/2019 19:07 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6

L73731-5 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 12/18/2019 19:07 1/7/2020 8:00 1/9/2020 10:26 WG168078-1,-2,-3,-4,-5,-6







L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTHARD-ICPMS STORM WTR 12/18/2019 19:04 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6 FREP @ L73731-6

L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS STORM WTR 12/18/2019 19:04 1/7/2020 8:00 1/9/2020 10:49 WG168078-1,-2,-3,-4,-5,-6 FREP @ L73731-6

L73836-1 421186B RTP INPLNT 3 DAY INT (inf,eff,sl) MTICPMS BLANK WTR 1/6/2020 0:00 1/7/2020 8:00 1/9/2020 10:53 WG168078-1,-2,-3,-4,-5,-6

L73890-1 421185-300 Alki CSO Plant MTHARD-ICPMS STORM WTR 12/20/2019 12:10 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6

L73890-1 421185-300 Alki CSO Plant MTICPMS STORM WTR 12/20/2019 12:10 1/7/2020 8:00 1/9/2020 10:56 WG168078-1,-2,-3,-4,-5,-6

L73890-2 421185-300 Alki CSO Plant MTHARD-ICPMS STORM WTR 12/20/2019 12:49 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6

L73890-2 421185-300 Alki CSO Plant MTICPMS STORM WTR 12/20/2019 12:49 1/7/2020 8:00 1/9/2020 11:07 WG168078-1,-2,-3,-4,-5,-6

L73891-1 421185-200 Carkeek CSO Plant MTHARD-ICPMS STORM WTR 12/21/2019 11:06 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6

L73891-1 421185-200 Carkeek CSO Plant MTICPMS STORM WTR 12/21/2019 11:06 1/7/2020 8:00 1/9/2020 11:11 WG168078-1,-2,-3,-4,-5,-6





WG168078-1 MB MTHARD-ICPMS BLANK WTR 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6 METHOD BLANK

WG168078-1 MB MTICPMS BLANK WTR 1/7/2020 8:00 1/9/2020 10:04 WG168078-1,-2,-3,-4,-5,-6 METHOD BLANK

WG168078-2 SB MTHARD-ICPMS BLANK WTR 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6 WG168078-1 MS-20

WG168078-2 SB MTICPMS BLANK WTR 1/7/2020 8:00 1/9/2020 10:08 WG168078-1,-2,-3,-4,-5,-6 WG168078-1 MS-20

WG168078-3 MS MTHARD-ICPMS STORM WTR 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6 L71647-1 MS-20

WG168078-3 MS MTICPMS STORM WTR 1/7/2020 8:00 1/9/2020 10:15 WG168078-1,-2,-3,-4,-5,-6 L71647-1 MS-20

WG168078-4 MSD MTHARD-ICPMS STORM WTR 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6 WG168078-3 L71647-1 MS-20

WG168078-4 MSD MTICPMS STORM WTR 1/7/2020 8:00 1/9/2020 10:19 WG168078-1,-2,-3,-4,-5,-6 WG168078-3 L71647-1 MS-20

WG168078-5 MS MTHARD-ICPMS STORM WTR 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6 L73890-1 MS-20

WG168078-5 MS MTICPMS STORM WTR 1/7/2020 8:00 1/9/2020 11:00 WG168078-1,-2,-3,-4,-5,-6 L73890-1 MS-20

WG168078-6 MSD MTHARD-ICPMS STORM WTR 1/7/2020 8:00 1/14/2020 6:47 WG168078-1,-2,-3,-4,-5,-6 WG168078-5 L73890-1 MS-20

WG168078-6 MSD MTICPMS STORM WTR 1/7/2020 8:00 1/9/2020 11:04 WG168078-1,-2,-3,-4,-5,-6 WG168078-5 L73890-1 MS-20


Page 10 of 10


Sample Project Project Description List Type Matrix Collect Date Prep Date Anal Date QC Association CommentsL72133-1 421874-510 City of Sammamish Monthly Stream Monitoring MTICPMS-DISS STORM WTR 12/19/2019 15:45 1/7/2020 12:00 1/9/2020 11:37 WG168083-1,-2,-3,-4





L73731-9 421195-181 Mercer Island Pilot Study - Oyster Shell Retrofits MTICPMS-DISS STORM WTR 12/18/2019 19:04 1/7/2020 12:00 1/9/2020 12:03 WG168083-1,-2,-3,-4 FREP @ L73731-6




WG168083-4 MSD MTICPMS-DISS STORM WTR 1/7/2020 12:00 1/9/2020 11:45 WG168083-1,-2,-3,-4 WG168083-3 L72133-1 MS-20

King County Environmental Laboratory QC Report Mercer island Oyster Shell Retrofit Study storm 4 18DEC2019

Page 1 of 16

Workgroup: WG167906 Dissolved Nutrients

MB:WG167906-1 Matrix: BLANK WTR Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualAmmonia Nitrogen 0.002 0.01 mg/L <MDL


SB:WG167906-2 MB:WG167906-1 Matrix: BLANK WTR Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project: Pkey:STD(Spike Blank, Method Blank)

Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitAmmonia Nitrogen 0.002 0.01 mg/L <MDL 0.04 0.0407 102 80--120



LCS:WG167906-3 Matrix: BLANK WTR Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project: Pkey:STD(Lab Control Sample)

Parameter MDL RDL Units True Value LCS Value % Rec. Qual Lab LimitAmmonia Nitrogen 0.002 0.01 mg/L 0.05 0.0486 97 85--115








Page 2 of 16


Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitOrthophosphate Phosphorus 0.25 1 mg/L 1.58 1.73 9 0--20


Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitOrthophosphate Phosphorus 0.25 1 mg/L 1.58 0.02 13.1 115 75--125

LD:WG167906-9 L73852-3 Matrix: LEACHATE Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project:421422-CHLS-M Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitAmmonia Nitrogen 40 200 mg/L 505 478 5 0--20

MS:WG167906-10 L73852-3 Matrix: LEACHATE Listtype:CVNH3-FL Method:KEROUEL & AMINOT 1997 Project:421422-CHLS-M Pkey:STD(Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitAmmonia Nitrogen 40 200 mg/L 505 0.04 1190 86 75--125


Page 3 of 16

Workgroup: WG167911 Alkalinity and pH










Parameter MDL RDL Units SAMP Value LD Value Abs. Diff Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 65.6 65.8 0 0--10






Page 4 of 16



LD:WG167911-10 L73773-42 Matrix: FRESH WTR Listtype:CVALK Method:SM2320-B Project:421235 Pkey:STD(Lab Duplicate)

Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Alkalinity 1 5 mg CaCO3/L 42 42.9 2 0--10








Page 5 of 16






Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitTotal Suspended Solids 1 2 mg/L 6 8.61 36 * 0--25


Page 6 of 16

Workgroup: WG167967 DOC






LD:WG167967-5 L73896-3 Matrix: STORM WTR Listtype:CVDOC Method:SM5310-B Project:423670 Pkey:STD(Lab Duplicate)


MS:WG167967-6 L73896-3 Matrix: STORM WTR Listtype:CVDOC Method:SM5310-B Project:423670 Pkey:STD(Matrix Spike)








Page 7 of 16


Parameter MDL RDL Units SAMP Value LD Value RPD Qual Lab LimitDissolved Organic Carbon 0.5 1 mg/L 3.41 3.23 6 0--20


Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab LimitDissolved Organic Carbon 0.5 1 mg/L 3.41 5 7.5 82 75--125


Page 8 of 16

Workgroup: WG168002 TOC






LD:WG168002-5 L73845-6 Matrix: GRND WTR Listtype:CVTOC Method:SM5310-B Project:421422-PUGW Pkey:STD(Lab Duplicate)


MS:WG168002-6 L73845-6 Matrix: GRND WTR Listtype:CVTOC Method:SM5310-B Project:421422-PUGW Pkey:STD(Matrix Spike)







Page 9 of 16

















Page 10 of 16






Page 11 of 16

Workgroup: WG168235 Field MeasurementsNo QC sample found for this workgroup


Page 12 of 16



MB:WG168078-1 Matrix: BLANK WTR Listtype:MTICPMS Method:EPA 200.8 (MOD) Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualBeryllium, Total, ICP-MS 0.1 0.5 ug/L <MDLMagnesium, Total, ICP-MS 50 50 ug/L <MDLCalcium, Total, ICP-MS 50 50 ug/L <MDLChromium, Total, ICP-MS 0.2 1 ug/L <MDLNickel, Total, ICP-MS 0.1 0.5 ug/L <MDLCopper, Total, ICP-MS 0.2 2 ug/L <MDLZinc, Total, ICP-MS 0.5 2.5 ug/L <MDLArsenic, Total, ICP-MS 0.05 0.25 ug/L <MDLSelenium, Total, ICP-MS 0.5 1 ug/L <MDLSilver, Total, ICP-MS 0.04 0.2 ug/L <MDLCadmium, Total, ICP-MS 0.05 0.25 ug/L <MDLAntimony, Total, ICP-MS 0.3 1 ug/L <MDLBarium, Total, ICP-MS 0.5 0.5 ug/L <MDLThallium, Total, ICP-MS 0.1 0.2 ug/L <MDLLead, Total, ICP-MS 0.1 0.5 ug/L <MDL




Page 13 of 16


Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitBeryllium, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 19.2 96 85--115Magnesium, Total, ICP-MS 50 50 ug/L <MDL 5000 5200 104 85--115Calcium, Total, ICP-MS 50 50 ug/L <MDL 5000 4760 95 85--115Chromium, Total, ICP-MS 0.2 1 ug/L <MDL 20 20.6 103 85--115Nickel, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 22 110 85--115Copper, Total, ICP-MS 0.2 2 ug/L <MDL 20 20.4 102 85--115Zinc, Total, ICP-MS 0.5 2.5 ug/L <MDL 20 21.3 107 85--115Arsenic, Total, ICP-MS 0.05 0.25 ug/L <MDL 20 20.2 101 85--115Selenium, Total, ICP-MS 0.5 1 ug/L <MDL 20 20.1 100 85--115Silver, Total, ICP-MS 0.04 0.2 ug/L <MDL 20 19.4 97 85--115Cadmium, Total, ICP-MS 0.05 0.25 ug/L <MDL 20 19.7 98 85--115Antimony, Total, ICP-MS 0.3 1 ug/L <MDL 20 18.3 92 85--115Barium, Total, ICP-MS 0.5 0.5 ug/L <MDL 20 19.8 99 85--115Thallium, Total, ICP-MS 0.1 0.2 ug/L <MDL 20 19.3 96 85--115Lead, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 19.5 98 85--115




Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab Limit True Value MSD Value % Rec. Qual RPD Qual Lab LimitBeryllium, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 19.2 96 75--125 20 19.3 97 1 0--20Magnesium, Total, ICP-MS 50 50 ug/L 3230 5000 8210 100 75--125 5000 8400 103 2 0--20Calcium, Total, ICP-MS 50 50 ug/L 14400 5000 19200 95 75--125 5000 19200 95 0 0--20Chromium, Total, ICP-MS 0.2 1 ug/L 2.38 20 21.9 97 75--125 20 22.7 101 4 0--20Nickel, Total, ICP-MS 0.1 0.5 ug/L 3.52 20 24.4 104 75--125 20 25.1 108 3 0--20Copper, Total, ICP-MS 0.2 2 ug/L 16.7 20 36.5 99 75--125 20 36.5 99 0 0--20Zinc, Total, ICP-MS 0.5 2.5 ug/L 74 20 94.9 104 75--125 20 94.4 102 0 0--20Arsenic, Total, ICP-MS 0.05 0.25 ug/L 3.1 20 22.8 99 75--125 20 23.1 100 1 0--20Selenium, Total, ICP-MS 0.5 1 ug/L <MDL 20 20.2 101 75--125 20 20 100 1 0--20Silver, Total, ICP-MS 0.04 0.2 ug/L 0.077 20 18.8 94 75--125 20 19 95 1 0--20Cadmium, Total, ICP-MS 0.05 0.25 ug/L 0.095 20 19.3 96 75--125 20 19.5 97 1 0--20Antimony, Total, ICP-MS 0.3 1 ug/L 0.77 20 18.6 89 75--125 20 18.6 89 0 0--20Barium, Total, ICP-MS 0.5 0.5 ug/L 22.2 20 42.2 100 75--125 20 42.4 101 0 0--20Thallium, Total, ICP-MS 0.1 0.2 ug/L <MDL 20 18.5 92 75--125 20 18.7 94 1 0--20Lead, Total, ICP-MS 0.1 0.5 ug/L 6.35 20 25.3 95 75--125 20 25.5 96 1 0--20


Page 14 of 16




Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab Limit True Value MSD Value % Rec. Qual RPD Qual Lab LimitBeryllium, Total, ICP-MS 0.1 0.5 ug/L <MDL 20 19.5 98 75--125 20 19.7 99 1 0--20Magnesium, Total, ICP-MS 50 50 ug/L 4950 5000 9950 100 75--125 5000 10100 103 1 0--20Calcium, Total, ICP-MS 50 50 ug/L 12300 5000 17400 102 75--125 5000 17900 111 3 0--20Chromium, Total, ICP-MS 0.2 1 ug/L 2.21 20 22.1 100 75--125 20 22.6 102 2 0--20Nickel, Total, ICP-MS 0.1 0.5 ug/L 4.6 20 26 107 75--125 20 26.4 109 2 0--20Copper, Total, ICP-MS 0.2 2 ug/L 11.4 20 31.7 101 75--125 20 31.9 103 1 0--20Zinc, Total, ICP-MS 0.5 2.5 ug/L 45.9 20 67.4 107 75--125 20 67.8 109 1 0--20Arsenic, Total, ICP-MS 0.05 0.25 ug/L 2 20 22.2 101 75--125 20 22.6 103 2 0--20Selenium, Total, ICP-MS 0.5 1 ug/L <MDL 20 20.2 101 75--125 20 20.8 104 3 0--20Silver, Total, ICP-MS 0.04 0.2 ug/L 0.073 20 19.1 95 75--125 20 19.1 95 0 0--20Cadmium, Total, ICP-MS 0.05 0.25 ug/L 0.068 20 19.4 97 75--125 20 19.4 97 0 0--20Antimony, Total, ICP-MS 0.3 1 ug/L 0.67 20 18.9 91 75--125 20 18.6 90 2 0--20Barium, Total, ICP-MS 0.5 0.5 ug/L 14.8 20 34.4 98 75--125 20 34.3 98 0 0--20Thallium, Total, ICP-MS 0.1 0.2 ug/L <MDL 20 18.6 93 75--125 20 19 95 2 0--20Lead, Total, ICP-MS 0.1 0.5 ug/L 4.19 20 23 94 75--125 20 23.4 96 1 0--20


Page 15 of 16


MB:WG168083-1 Matrix: BLANK WTR Listtype:MTICPMS-DISS Method:EPA 200.8 (MOD) Project: Pkey:STD(Method Blank)Parameter MDL RDL Units MB Value QualMagnesium, Dissolved, ICP-MS 50 50 ug/L <MDLCalcium, Dissolved, ICP-MS 50 50 ug/L <MDLVanadium, Dissolved, ICP-MS 0.075 0.375 ug/L <MDLChromium, Dissolved, ICP-MS 0.2 1 ug/L <MDLIron, Dissolved, ICP-MS 10 50 ug/L <MDLNickel, Dissolved, ICP-MS 0.1 0.5 ug/L <MDLCopper, Dissolved, ICP-MS 0.2 2 ug/L <MDLZinc, Dissolved, ICP-MS 0.5 2.5 ug/L <MDLArsenic, Dissolved, ICP-MS 0.05 0.25 ug/L <MDLSelenium, Dissolved, ICP-MS 0.5 1 ug/L <MDLSilver, Dissolved, ICP-MS 0.04 0.2 ug/L <MDLCadmium, Dissolved, ICP-MS 0.05 0.25 ug/L <MDLLead, Dissolved, ICP-MS 0.1 0.5 ug/L <MDL


Parameter MDL RDL Units MB Value True Value SB Value % Rec. Qual Lab LimitMagnesium, Dissolved, ICP-MS 50 50 ug/L <MDL 5000 5170 103 85--115Calcium, Dissolved, ICP-MS 50 50 ug/L <MDL 5000 4800 96 85--115Vanadium, Dissolved, ICP-MS 0.075 0.375 ug/L <MDL 20 20.6 103 85--115Chromium, Dissolved, ICP-MS 0.2 1 ug/L <MDL 20 20.3 102 85--115Iron, Dissolved, ICP-MS 10 50 ug/L <MDL 5000 5360 107 85--115Nickel, Dissolved, ICP-MS 0.1 0.5 ug/L <MDL 20 21.9 110 85--115Copper, Dissolved, ICP-MS 0.2 2 ug/L <MDL 20 20.2 101 85--115Zinc, Dissolved, ICP-MS 0.5 2.5 ug/L <MDL 20 21.6 108 85--115Arsenic, Dissolved, ICP-MS 0.05 0.25 ug/L <MDL 20 20.1 101 85--115Selenium, Dissolved, ICP-MS 0.5 1 ug/L <MDL 20 19.6 98 85--115Silver, Dissolved, ICP-MS 0.04 0.2 ug/L <MDL 20 19.3 96 85--115Cadmium, Dissolved, ICP-MS 0.05 0.25 ug/L <MDL 20 19.5 97 85--115Lead, Dissolved, ICP-MS 0.1 0.5 ug/L <MDL 20 19.4 97 85--115


Page 16 of 16

MSD:WG168083-4 MS:WG168083-3 L72133-1 Matrix: STORM WTR Listtype:MTICPMS-DISS Method:EPA 200.8 (MOD) Project:421874-510 Pkey:STD(Matrix Spike Duplicate, Matrix Spike)

Parameter MDL RDL Units SAMP Value True Value MS Value % Rec. Qual Lab Limit True Value MSD Value % Rec. Qual RPD Qual Lab LimitMagnesium, Dissolved, ICP-MS 50 50 ug/L 7000 5000 12400 107 75--125 5000 12200 104 1 0--20Calcium, Dissolved, ICP-MS 50 50 ug/L 14900 5000 19800 98 75--125 5000 20300 108 2 0--20Vanadium, Dissolved, ICP-MS 0.075 0.375 ug/L 1.77 20 22.8 105 75--125 20 22.5 104 1 0--20Chromium, Dissolved, ICP-MS 0.2 1 ug/L 0.37 20 20.9 103 75--125 20 20.8 102 1 0--20Iron, Dissolved, ICP-MS 10 50 ug/L 83.3 5000 5460 108 75--125 5000 5440 107 0 0--20Nickel, Dissolved, ICP-MS 0.1 0.5 ug/L 0.4 20 22.1 108 75--125 20 22.1 108 0 0--20Copper, Dissolved, ICP-MS 0.2 2 ug/L 1 20 21.3 102 75--125 20 21.7 103 2 0--20Zinc, Dissolved, ICP-MS 0.5 2.5 ug/L 9.98 20 31.5 107 75--125 20 31.3 107 1 0--20Arsenic, Dissolved, ICP-MS 0.05 0.25 ug/L 1.53 20 21.9 102 75--125 20 22 103 0 0--20Selenium, Dissolved, ICP-MS 0.5 1 ug/L <MDL 20 20.2 101 75--125 20 20.2 101 0 0--20Silver, Dissolved, ICP-MS 0.04 0.2 ug/L <MDL 20 19.4 97 75--125 20 19.3 96 1 0--20Cadmium, Dissolved, ICP-MS 0.05 0.25 ug/L <MDL 20 19.6 98 75--125 20 19.5 97 1 0--20Lead, Dissolved, ICP-MS 0.1 0.5 ug/L <MDL 20 19.3 96 75--125 20 19.6 98 2 0--20

======================================================================================If the following parameters are reported, values in the RPD column are actually Absolute Differences: pH, Field Salinity, Field Sample Depth Sample Temperature, Field


Documents

King County Environmental Laboratory · prepared using sample L72057-1. Since the analysis holding time had already expired by the time analysis was conducted, re-analysis was not