Hilo Harbor, Hilo, Hawaii, Hawaii March 2020 Contractor

C-EHMP Demolition of Quonset Hut Hilo Harbor, Hilo, Hawaii, Hawaii

Cover Sheet March 2020

Contractor Information Sheet

The Contractor’s Qualified Professional, defined in Section 5, shall complete the sections of this Construction Environmental Hazard Management Plan (C-EHMP) that are annotated in RED font. The C-EHMP must be submitted to the State of Hawaii Department of Health (HDOH) Hazard Evaluation and Emergency Response (HEER) Office for review and approval at least 90 days prior to the start of construction activities.



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Cover Sheet

The purpose of this Construction Environmental Hazard Management Plan (C-EHMP) is to identify the environmental hazards that are posed by contaminants (potential and known) at the site, and to provide clear procedures for how to safely manage these environmental hazards. The State of Hawaii Department of Health (HDOH) Hazard Evaluation and Emergency Response (HEER) Office may require that a project-specific C-EHMP be created for any project involving construction & demolition activities (grading, grubbing etc.) at a site where environmental contaminants are known or suspected to exist.

Preparation and adherence to this C-EHMP will help prevent unforeseen delays in construction schedules during construction and/or demolition activities at sites with known contamination and helps to avoid costly fines.

The C-EHMP must be submitted to the HDOH HEER Office for review and approval at least 90 days prior to the start of construction activities.

Table CS-1: Pre-Construction Evaluation of Environmental Issues at the Site

TO BE COMPLETED/UPDATED BY THE CONTRACTOR

Yes No Are COPCs above the lowest unrestricted HDOH Tier 1 EALs?1,2

Has the release been reported to the HDOH HEER Office?2

Are COPCs above the construction worker HDOH EAL? Has the extent of contamination been fully delineated (both vertically and laterally)? Have sufficient soil vapor samples been collected in areas where a future building will be present? Is there are on-going release at the site that must be mitigated prior to construction?

Are COPC concentrations and contaminated media unknown but presumed or suspected to be present at the site at potentially hazardous levels based on historic site activities or other evidence?1

Will demolition of structures be conducted at the site prior to redevelopment?

If demolition will occur, has asbestos and lead-paint abatement been completed prior to demolition in accordance with all State and Federal regulations?

Notes: COPC = contaminant of potential concern EAL= Environmental Action Level 1 If no contaminants are present or suspected to be present at the site at concentrations greater than the lowest unrestricted land use HDOH Tier 1 EAL then a C-EHMP is not required. The lowest HDOH Tier 1 EAL is defined as the EAL for unrestricted land use where groundwater is potential drinking water resource and the nearest surface water body is less than 150 meters away. 2All releases must be reported to the HDOH HEER Office Emergency Preparedness and Response Section (EP&R) by calling (808) 586-4249 and followed-up with a written Release Notification.

Following construction, contact the HDOH HEER Office to confirm that all contamination was managed in accordance with the approved C-EHMP. At a minimum, please submit all appropriate manifests, tracking logs, and photos. If contaminated media will be left on-site following the completion of construction, then a Site-Specific Environmental Hazard Evaluation (EHE) must be conducted and a separate Environmental Hazard Management Plan (EHMP) will have to be prepared to manage the contamination in the long-term. If the site already has an EHE-EHMP, then the EHE-EHMP must be updated following redevelopment to incorporate changes to the site. EHEs and EHMPs must be submitted to the HDOH for review and approval following the completion of construction activities detailed in this C-EHMP.




Project-Specific Construction Environmental Hazard Management Plan

(C-EHMP)

for State of Hawaii Department of Transportation

Harbors Division (HDOT-HAR)

Hilo Harbor Demolition of Quonset Hut

State Project No. H.C. 50113.1 Hilo, Hawaii, Hawaii

Prepared by:

PREPARER’S NAME/COMPANY

March 2020

Signatures

This document is not finalized until it is signed. A signed copy will be present on-site at all times.

I certify that as property owner, I am responsible for ensuring all parties who work or reside at my site are aware of the contamination at my property, and the associated hazards, and that the information in this document is true and accurate to the best of my knowledge. I am responsible for ensuring compliance with all land use controls as well as advance notifications to the State of Hawaii Department of Health (HDOH) of anticipated land use changes or groundbreaking activity at my property.

Property Owner or Representative of Property Owner

I certify that I am a qualified environmental professional (QEP), capable of ensuring compliance with the requirements of this Construction Environmental Hazard Management Plan (C-EHMP). It is my duty on this project to understand the requirements of this document and be on-site during groundbreaking activities. I will communicate hazards, management protocols, and other C-EHMP requirements to construction professionals at the site. I will document such activities, and communicate with HDOH, as needed.

Qualified Environmental Professional

As Construction Manager, I am responsible for understanding the requirements of this C-EHMP, effectively communicating the requirements and hazards to my crews and subcontractors and providing the required training and personal protective equipment to site workers. I will work with the QEP to ensure compliance with this C-EHMP during work at this property.

Construction Manager


Table of Contents

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Table of Contents Section Page

List of Acronyms and Abbreviations ....................................................................................................... v

Section 1 Introduction and Purpose ..................................................................................................... 1-1 Section 2 Background .......................................................................................................................... 2-1

2.1 Project Site Location and Description ....................................................................................................... 2-1 2.2 Site Conditions................................................................................................................................................. 2-1 2.3 Existing Environmental Conditions ............................................................................................................. 2-2 2.4 Historical Land Use ......................................................................................................................................... 2-2 2.5 Summary of Environmental Investigations ................................................................................................. 2-3

2.5.1 Underground Storage Tank Closure Report, 1994 ......................................................... 2-3 2.5.2 Release Response Assessment, Removal, Mitigation, and Prevention of a Substantial

Threat of Oil Discharge, Hawaiian Asphalt Facility, 2005 .............................................. 2-3 2.5.3 Phase I Environmental Site Assessment, 2019 ............................................................... 2-4

2.6 Contaminants of Potential Concern ........................................................................................................... 2-5 2.6.2 Contaminants of Potential Concern and Construction Materials ................................... 2-9

Section 3 Summary of Potential Environmental Hazards ..................................................................... 3-1 Section 4 Notification Requirements ................................................................................................... 4-1

Section 5 Requirements for On-site Environmental Oversight ............................................................. 5-1

Section 6 Construction Activities ......................................................................................................... 6-1

Section 7 Soil Management Plan.......................................................................................................... 7-1 7.1 Soil Management .............................................................................................................................................. 7-1

7.1.1 Field Identification of Contaminated Soil....................................................................... 7-2 7.1.2 Dust and Erosion Control .............................................................................................. 7-3 7.1.3 Excavation and Stockpiling ............................................................................................ 7-4

7.2 Soil Reuse and Disposal ................................................................................................................................. 7-6 7.2.1 Soil Sampling for Reuse (DELETE IF NOT REUSING OFF-SITE) ......................................... 7-8 7.2.2 Stockpile Sampling for Disposal at a Disposal Facility .................................................... 7-9 7.2.3 Record Keeping ........................................................................................................... 7-10

Section 8 Concrete Waste Management Plan ...................................................................................... 8-1 8.1 Concrete Waste Management ..................................................................................................................... 8-1

8.1.1 Field Identification of Contaminated Concrete .............................................................. 8-1 8.1.2 Dust and Erosion Control .............................................................................................. 8-2 8.1.3 Excavation and Stockpiling ............................................................................................ 8-2

8.2 Concrete Disposal .......................................................................................................................................... 8-3 8.2.1 Stockpile Sampling for Disposal at a Disposal Facility .................................................... 8-5 8.2.2 Record Keeping ............................................................................................................. 8-6


Table of Contents

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Table of Contents (Continued) Section Page

Section 9 Groundwater Management Plan .......................................................................................... 9-1 9.1 Groundwater Management ........................................................................................................................... 9-2 9.2 Dewatering (DELETE IF DEWATERING NOT ANTICIPATED) ....................................................... 9-2 9.3 Groundwater Disposal ................................................................................................................................... 9-3

Section 10 Free Product Management Plan ....................................................................................... 10-1

Section 11 Stormwater Management Plan ........................................................................................ 11-1

Section 12 Vapor Management Plan .................................................................................................. 12-1 Section 13 Spill or Release Response ................................................................................................. 13-1

13.1 Release Response ........................................................................................................................................ 13-1 13.2 Release Reporting ....................................................................................................................................... 13-2

Section 14 Worker Protection ............................................................................................................ 14-1

Section 15 Equipment Decontamination ........................................................................................... 15-1 15.1 Decontamination of Tools and Personnel ............................................................................................ 15-1 15.2 Decontamination of Vehicles and Equipment....................................................................................... 15-1

Section 16 Record Keeping and Reporting ......................................................................................... 16-1

Section 17 Harbor Special Provisions ................................................................................................. 17-1 17.1 Limitation of Operations ........................................................................................................................... 17-1

17.1.1 General Operations ................................................................................................... 17-1 17.1.2 Utilities ..................................................................................................................... 17-2 17.1.3 Marking of Hazardous Areas ..................................................................................... 17-2 17.1.4 Storage of Equipment and Materials ......................................................................... 17-2 17.1.5 Archaeological Features ............................................................................................ 17-3 17.1.6 Operations of Contractor’s Motor Vehicle and Personnel in Harbors Operations and

Movement Areas ....................................................................................................... 17-3

Section 18 References ........................................................................................................................ 18-1

Tables Table CS-1: Pre-Construction Evaluation of Environmental Issues at the Site ..................................... 3 Table 2-1: Property Identification ................................................................................................... 2-1 Table 2-2: Site Conditions ............................................................................................................... 2-1 Table 2-3: Structures ...................................................................................................................... 2-2 Table 2-4: Groundwater Contamination ......................................................................................... 2-6 Table 2-5: Construction Material Questions .................................................................................... 2-9 Table 2-6: Construction Material Assessment ............................................................................... 2-10 Table 3-1: Environmental Hazard Table .......................................................................................... 3-1


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Table of Contents (Continued) Table 3-2: Chronic and Acute Direct Exposure Hazards ................................................................... 3-1 Table 4-1: Key Project Personnel .................................................................................................... 4-1 Table 4-2: HDOH E-Permitting Portal Information ........................................................................... 4-2 Table 5-1: Table of Project Activities when QEP Must be Present .................................................... 5-1 Table 6-1: Planned Types of Excavations ......................................................................................... 6-1 Table 7-1: Soil Sample Collection and Handling ............................................................................... 7-7 Table 7-2: Off-Site Disposal/Reuse Table ........................................................................................ 7-8 Table 7-3: Volume of Soil Proposed for Export ................................................................................ 7-8 Table 7-4: Stockpile Sampling Parameters for Export ...................................................................... 7-9 Table 7-5: Stockpile Sampling Parameters for Disposal ................................................................... 7-9 Table 8-1: Concrete Sample Collection and Handling ...................................................................... 8-4 Table 8-2: Off-Site Disposal/Recycling Table ................................................................................... 8-5 Table 8-3: Stockpile Sampling Parameters for Disposal ................................................................... 8-5 Table 9-1: Groundwater Screening ................................................................................................. 9-1 Table 9-2: Groundwater Disposal Analysis ...................................................................................... 9-4 Table 9-3: Groundwater Disposal .................................................................................................... 9-4 Table 10-1: Free Product Screening .............................................................................................. 10-1 Table 13-1: Emergency Spill Contact Information.......................................................................... 13-2 Table 13-2: Personnel Responsible for Release Notifications ........................................................ 13-3

Figures Figure 1-1: Site Layout .................................................................................................................... 1-3 Figure 2-1: Known or Suspected Contamination Locations / Hazard Map ........................................ 2-7 Figure 6-1: Construction Staging Areas ........................................................................................... 6-3

Appendices

Appendix A Construction Plans and Drawings Appendix B Site-Specific Health and Safety Plan Appendix C Best Management Plans Appendix D Sampling and Analysis Plan Appendix E Construction Material Documents Appendix F Soil Acceptance Agreement Appendix G Soil Tracking Log Appendix H Permits


Table of Contents

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List of Acronyms and Abbreviations

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% percent < less than § Section µg/L micrograms per liter AC asphaltic concrete ACM asbestos-containing material AST above ground storage tank ATSDR Agency for Toxic Substances & Disease Registry bgs below ground surface BMP Best Management Plan BTEX benzene, toluene, ethylbenzene, and total xylenes c. circa CCCL Office of Conservation and Coastal Lands CDUA Conservation District Use Application C-EHMP Construction Environmental Hazard Management Plan CFR Code of Federal Regulations CMU concrete masonry unit COPC contaminant of potential concern CWB Clean Water Branch DPP Department of Planning and Permitting DRO diesel range organics DU decision unit E2 Element Environmental, LLC EAL Environmental Action Level EHE Environmental Hazard Evaluation EHMP Environmental Hazard Management Plan EP&R Emergency Preparedness and Response EPA United States Environmental Protection Agency ESA Environmental Site Assessment ft feet ft2 square feet GRO gasoline range organics HAR Hawaii Administrative Rule HASP Health and Safety Plan HDOH State of Hawaii Department of Health HDOT-HAR State of Hawaii Department of Transportation Harbors Division HELCO Hawaiian Electric Light Company, Inc. HiOSH State of Hawaii Occupational Safety and Health Standards HRS Hawaii Revised Statues LBP lead-based paint



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LEL lower explosive limit LEPC Local Emergency Planning Committee mg/kg milligrams per kilogram NPDES National Pollutant Discharge Elimination System NRC National Response Center OCl organochlorine OPP organophosphorus pesticide ORO oil range organics OWS oil-water separator PAH polynuclear aromatic hydrocarbon PCB polychlorinated biphenyl PCS petroleum-contaminated soil PID photoionization detector PM Project Manager PPE personal protection equipment ppmv parts per million by volume PUC Public Utilities Commission QEP Qualified Environmental Professional RCRA Resource Conservation and Recovery Act REC recognized environmental condition SAP Sampling and Analysis Plan SHWB Solid and Hazardous Waste Branch TCLP Toxicity Characteristic Leaching Procedure TGM Technical Guidance Manual TMK Tax Map Key TPH total petroleum hydrocarbons TWIC Transportation Worker Identification Credential UIC underground injection control UST underground storage tank VOC volatile organic compound yd3 cubic yards


Section 1 Introduction and Purpose

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Section 1 Introduction and Purpose This Project-Specific Construction Environmental Hazard Management Plan (C-EHMP) document was prepared by PREPARERS NAME/COMPANY for the State of Hawaii Department of Transportation Harbors Division (HDOT-HAR) to provide guidance to CONTRACTOR/SUBCONTRACTOR for the demolition of the Quonset Hut at the Hilo Harbor, Hilo, Hawaii where contaminated media is known or suspected to be present. These guidelines should be used by all who may be hired to assist with the project activities to keep workers, users, the environment, and the general public safe from contact with contamination on-site and prevent contaminants of potential concerns (COPCs) from leaving the site without proper management. Not adhering to this plan may have serious consequences including, but not limited to stopping construction and being liable for any damage or harm caused by on-site contamination.

This C-EHMP follows the Hawaii State Contingency Plan (Hawaii Administrative Rules [HAR] Section [§]11-451), HAR §11-281, and the following State of Hawaii Department of Health (HDOH) guidance documents:

• Long-Term Management of Petroleum-Contaminated Soil and Groundwater, June 2007.

• Technical Guidance Manual (TGM) for the Implementation of the Hawaii State Contingency Plan Interim Final, 2008 and updates.

• Technical Guidance Manual Notes: Decision Unit and Multi Increment Sample Investigations, March 2011.

• Evaluation of Environmental Hazards at Sites with Contaminated Soil and Groundwater, Volume 1: User’s Guide, Hawaii Edition and Volume 2: Background Documentation for the Development of Tier 1 Environmental Action Levels, Appendices 2-9, Fall 2017(a).

• Guidance for Soil Stockpile Characterization and Evaluation of Imported and Exported Fill Material, October 2017(b).

• The Hawaii Environmental Response Law (Hawaii Revised Statutes Chapter 128D).

• Hawaii Occupational Safety and Health Standards (HiOSH) (HAR §12-99).

Guidelines for management of contaminated media and associated institutional and/or engineering controls during planned construction activities are presented in this C-EHMP.

Disclaimer:

The procedures, information, and guidelines referred to herein are not intended to be a comprehensive description of all of the rules, regulations, laws, and other requirements applicable to the construction project. They are only intended to provide general information and should not be used in place of appropriately qualified personnel. The facility and/or construction contractor is responsible for complying with all applicable rules, regulations, laws, and other requirements.



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FIGURE NO.:

1-1

PROJECT TITLE:

DEMOLITION OF QUONSET HUT

HDOT-HAR, STATE PROJECT NO. H.C. 50113.1

HILO HARBOR, HILO, HAWAII, HAWAII

FIGURE TITLE:

SITE VICINITY AND LOCATION MAP

DATE:

FEB 2020



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Section 2 Background March 2020

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Section 2 Background

2.1 Project Site Location and Description Hilo Harbor is located at the eastern end of Kuhio Bay on the windward, or eastern coast of the island and approximately one mile south of Hilo International Airport and is served by Kalanianaole Avenue. The main entrance to the Hilo Harbor is located at Kuhio Street, while the secondary entrance is located at Kahanu Street. The Quonset Hut is located south of Pier 1 and Radio Bay (Figure 1-1). The property identification is listed in Table 2-1.

Table 2-1: Property Identification

Address: Hilo Harbor 80 Kuhio Street Hilo, Hawaii, Hawaii 96720

Work Project Number: 218060-00 DOT-HAR Civil Ph 4 H.C. 90109 TMK No.: (3) 2-1-009: 038, 039 and 026 (portions) Latitude/Longitude: 19.729919° / -155.053260°

Note: TMK = Tax Map Key

2.2 Site Conditions Site conditions are identified in Table 2-2.

Table 2-2: Site Conditions

Distance to Nearest Surface Water Body (meters): Hilo Bay is located approximately 82 meters (268 ft) to the northwest and Radio Bay is located approximately 116 meters (380 ft) to the north. Hilo Harbor is classified as a Class B or “wet” embayment.

Approximate Depth to Groundwater (ft bgs): 6.5 and may be tidally influenced.

Property Above or Below UIC Line: Below (makai) the UIC line.

Is the first-encountered groundwater classified as a potential source of drinking water in the Mink & Lau Aquifer Identification and Classification Report?

The site is underlain by only one aquifer identified by Mink and Lau as 80401111(11111) and is listed as currently used as a drinking water source (Mink, John F.; Lau, L. Stephen; 1993). Groundwater encountered at the site is primarily comprised of seawater (HDOT-HAR 2011).

Proposed/Future Property Use Type (Residential, Commercial, Mixed Use Zoning, etc.).

Industrial to remain part of a deep-draft commercial Harbor. State Land Use classification is Urban. County Zoning is MG-1A and Open.

Typical Soil Profile from Surface to Groundwater (Include Depth Range, Lithology)

The commercial Harbor is situated on land reclaimed from the bay by placement of coralline fill materials over coralline lagoonal (silt) deposit underlain by soft mud deposits and loose finger and tree corals extending to depth of about 35 to 60 ft bgs overlying basalt formations from Mauna Loa.

Utilities Serving Site (e.g., Storm Drains, Electrical, Gas, Water, Sewer [specify-County, Cesspool, Septic, Other])

Sewer: County of Hawaii

Storm Drains: Discharges for stormwater associated with construction activity, hydrotesting, dewatering, and any industrial discharge will require NPDES permit approvals for HDOH.



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Electrical: HELCO

Portable Water: County of Hawaii, Department of Water Supply. HDOT-HAR owns the water lines from the main water meter.

Fire Protection: County of Hawaii Fire Department – Waiakea Fire Station

Communication: Verizon Hawaii.

Gas Lines: Hawaii Gas, Aloha Petroleum, and Chevron Notes: ft = feet bgs = below ground surface

UIC = underground injection control NPDES = National Pollutant Discharge Elimination System HELCO = Hawaiian Electric Light Company, Inc.

2.3 Existing Environmental Conditions Structures on the site are identified in Table 2-3, and shown on the construction drawings included in Appendix A.

Table 2-3: Structures

Structures

Approx. 6,300 ft2 corrugated metal Quonset Hut with bathroom, kitchen, break area, and chemical storage area. A 4 ft CMU wall makes up the lower portion of the exterior wall. A vehicle maintenance shop occupies the western portion of the structure while the eastern portion is used for storage. Approx. 1,700 ft2 covered parking area on the east side of the Quonset Hut. 20 ft Matson shipping container. Approx. 320 ft2 temporary wooden office trailer on the northwest side of the Quonset Hut. Approx. 400 ft2 corrugated metal covered area for former gasoline dispenser.

Notes: ft2 = square feet CMU = concrete masonry unit

2.4 Historical Land Use The beginnings of the present configuration of Hilo Harbor dates to the construction of the Hilo breakwater in 1908, built of stone quarried from Waiakea and Puna (and later from Waipio Valley), the breakwater was constructed on the inner part of the reef fronting Hilo Bay and was completed in 1929.

The pier that was originally called Kuhio Wharf was constructed in 1912 to 1916 at the present Pier 1 site. Completion of this pier removed most ship loading and unloading activity from the former Railroad Pier and the Government Wharf that had existed near the mouth of Wailoa River at Waiakea. Pier 2 was constructed in 1921 to 1923 and Pier 3 in 1926 to 1927. In 1969 to 1970 a small boat Harbor was added on the south side of the Harbor jetty seaward of the revetment and was modified in 1995.

The Quonset Hut was constructed circa (c.) 1921 and is still present on the site. In 1914 to c. 1932 railroad tracks ran in the vicinity and were removed by c. 1963. From 1921 to c. 1977, a small gas dispenser was located to the west of the Quonset Hut. The Quonset Hut was originally used for Stevedore equipment and later was used as the HT&T truck repair/maintenance facility building (c. 1947). During the tsunami in 1960, the Quonset Hut was substantially damaged and subsequently repaired. In 1997, a 1,100-gallon gasoline underground storage tank (UST) was removed from the west side of the building. During removal, a release was discovered surrounding loose product pipe fittings. The release adjacent to the Quonset Hut



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(UST Facility ID 9-600712; Release ID 940188) has been issued a Site Cleanup Completed – No Further Action status as of December 30, 1994.

2.5 Summary of Environmental Investigations The following is a brief summary of the previous investigation conducted in the vicinity of the Quonset Hut (does not include environmental investigations conducted at other locations within Hilo Harbor).

2.5.1 Underground Storage Tank Closure Report, 1994

The report describes the closure (removal) of one 1,100-gallon gasoline UST located at the HT&T truck repair/maintenance facility (adjacent to Quonset Hut) (Walker Consultants, Ltd. 1994). The following were noted based on the review of the report:

• HT&T leased the property from HDOT-HAR in 1947 and reportedly occupied it in 1950. The property reportedly contained the on-site building when HT&T leased it. During the tsunami in 1960, the property, including the on-site building, was substantially damaged, but HT&T quickly rebuilt.

• An observation well was installed by Walker Consultants, Ltd. during backfill near the western end of the UST removal excavation as a contingency to allow for future groundwater monitoring.

• The water table was encountered in the UST removal excavation at approximately 6.5 ft bgs. The groundwater flow direction and the hydraulic gradient are presumed to be in a northerly direction. Some of the groundwater in the UST removal excavation was slightly impacted by gasoline (faint gasoline odor and sheen); however, there was no free product.

• The UST removal groundwater grab sample contained low concentrations of total petroleum hydrocarbons (TPH) as gasoline range organics (GRO) and benzene, toluene, ethylbenzene, and total xylenes (BTEX). The lateral extent of groundwater detectably impacted by gasoline is not known, but it is reasonable to presume that it does not extend more than 10 to 20 ft beyond the UST removal excavation.

• Field-evident, gasoline-impacted soil at the western end of the UST was attributed to leakage from the loose product pipe fittings. The field-evident, gasoline-impacted soil was remedially excavated.

• Field photoionization detector (PID) screening was conducted and unimpacted soil was used to backfill the UST removal excavation, while the gasoline-impacted soil was spread on-site for aeration. Analyses of three samples of the aerated soil confirmed satisfactory completion of aeration prior to using it to backfill the UST removal excavation.

2.5.2 Release Response Assessment, Removal, Mitigation, and Prevention of a Substantial Threat of Oil Discharge, Hawaiian Asphalt Facility, 2005

In 2005, release response activities were conducted at the site (located approximately ⅛-mile south-southwest of the Quonset Hut); based on the findings and observations the following were identified (Hawaiian Asphalt 2005):



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• The lateral and vertical extent of soil contamination on the west side of the heating plant has been delineated out to HDOH action levels in place at the time. Although there is evidence of groundwater contamination, it appears to be limited to specks of asphalt cement floating on the water table.

• There have been releases of petroleum products at several areas inside the tank yard, but they appear to be limited to the upper 1 to 1.5 ft of soil or, in most instances, to surface staining.

• The possibility that there have been releases of turbine oil from the piping between the former MC-30 plant and Tanks 31 and 32 cannot be discounted on the basis of laboratory analytical results.

• Although TPH as diesel range organics (DRO) was detected in soil from the northeast tank yard pit, it was at a concentration below the HDOH action level in place at the time.

• Polynuclear aromatic hydrocarbons (PAHs) detected in groundwater from the temporary monitoring near the northeast corner of the tank yard were at extremely low (sub-microgram per liter) concentrations and likely were derived from the specks of asphalt cement floating on the water table. Although there is evidence of diesel fuel contamination, the volatile organic compounds (VOCs) BTEX were not detected.

• There have been releases of petroleum products at several locations in the vicinity of the general storage area, but these releases have been limited to the upper 1 to 1.5 ft of soil or to surface staining.

2.5.3 Phase I Environmental Site Assessment, 2019

Element Environmental, LLC (E2) conducted a Phase I Environmental Site Assessment (ESA) in April 2019 (E2 2019). The following recognized environmental conditions (RECs) were identified in the vicinity of Quonset Hut:

• Hazardous substances and petroleum products in connection with vehicle maintenance activities were observed, including but not limited to small quantities of gasoline, diesel, lead-acid batteries, oils (new and used), greases, lubricants, and propane tanks. Some were stored improperly within the Quonset Hut.

• Parked vehicles and forklifts, and the storage of vehicle parts were observed leaking (i.e., brake fluid, transmission fluid, hydraulic fluid, and oil) onto the pavement inside the Quonset Hut.

• Various compressed gas cylinders associated with welding, some improperly stored are located within the Quonset Hut.

• Fluorescent lights are present throughout the inside of the building; ballasts may contain polychlorinated biphenyls (PCBs).

• Three (3) 50-gallon pole-mounted transformers 34321, 34324, 40200 do not have a “No PCBs” labels and may contain PCBs.

• Old electrical equipment within the Quonset Hut may contain PCBs.



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• Rainwater from the leaking roof was observed ponding on heavily petroleum-stained areas of the concrete floor inside the Quonset Hut.

• Ponding fluids (i.e., brake fluid, transmission fluid, hydraulic fluid, and oil), were observed on the concrete floor inside the Quonset Hut as a result of vehicles being repaired.

• An oil sheen was observed in stormwater migrating onto the subject property from adjacent properties located at 82 and 90 Kuhio Street.

• Oil and grease build-up with a heavy continuous sheen was observed during a rainfall event.

• Concrete staining associated with vehicles, equipment, and chemical storage was observed throughout the maintenance area inside the Quonset Hut.

• A storm drain and drainage swale are located downgradient of the Quonset Hut and may be receiving petroleum-impacted stormwater runoff from maintenance activities conducted at the site as well as petroleum-impacted stormwater runoff from adjacent properties.

• One observation well was observed within the former UST excavation adjacent to the west of the Quonset Hut (UST Facility ID 9-600712).

• A historical fumigation plant was located within close proximity to the subject property. Historical operations performed at the fumigation plant had the potential to impact the soil and groundwater at the subject property. No known investigations have been conducted.

2.6 Contaminants of Potential Concern Contaminant concentrations are compared to the most restrictive (for initial screening purposes) HDOH Environmental Action Level (EAL) for unrestricted land use where groundwater is a potential drinking water resource and the nearest surface water body is less than (<) 150 meters. Since the Harbor area is used for industrial activities, alternative action levels for commercial/industrial land use are most appropriate for on-site management of contaminated soil.

To evaluate potential hazards to human health and the environment posed by contaminated media if it is transported off-site, all contaminant levels are compared to the most restrictive HDOH EALs for unrestricted use. Soil exceeding this EAL and leaving the site is considered a waste and has to be handled according to HDOH Solid and Hazardous Waste Branch (SHWB) Rules and Regulations. Mishandling of waste may lead to fines.

The only soil and groundwater analysis conducted at the site was during the UST closure in 2004. The 15 cubic yards of gasoline-impacted soils from the UST excavation were aerated (treated) until confirmed by laboratory analysis to be “not detected” for TPH-GRO, benzene, toluene, and ethylbenzene (Walker Consultants, Ltd. 1994). According to the UST Closure Report aerated soil was properly reused on-site to complete backfilling of the UST removal excavation (Walker Consultants, Ltd. 1994). The known groundwater contamination at the site is listed in Table 2-4 and shown in Figure 2-1. Groundwater at the site is estimated to be located at approximately 6.5 ft bgs. Groundwater contamination at the site has not been delineated; however, is presumed to not extend more than 10 to 20 feet beyond the UST removal excavation (Walker Consultants, Ltd. 1994).



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Table 2-4: Groundwater Contamination

Compound (Depth) Concentration Range (µg/L)

EAL* (µg/L)

Drinking Water

(Toxicity) (µg/L)

Aquatic Ecotoxicity

(µg/L)

Gross Contamination

(µg/L)

TPH-GRO (6.5 ft bgs) 2,000 300 300 500 500 Toluene (6.5 ft bgs) 20 9.8 1,000 9.8 40 Ethylbenzene (6.5 ft bgs) 9 7.3 700 7.3 30 Total Xylenes (6.5 ft bgs) 444 13 10,000 13 20

Note: µg/L = micrograms per liter * EAL for Unrestricted Use; < 150m from surface water; above drinking water.

The nature and extent of contamination at the site has not been delineated. It is possible that additional COPCs related to industrial use are present in site media. In addition to the contaminants listed in the table above, the following may be encountered in soil and soil vapor include:

• Petroleum substances

o TPH-GRO, TPH-DRO, and TPH as oil range organics (ORO) o BTEX o PAHs o Methane

• Aqua ammonia

• VOCs

• PCBs (as Aroclor mixtures)

• Pesticides

o Organochlorine (OCl) pesticides including technical chlordane o Organophosphorus pesticides (OPPs)

• Resource Conservation and Recovery Act (RCRA) 8-metals (arsenic, barium, cadmium, chromium, lead, mercury, selenium, and silver).

Petroleum products are likely to be encountered near the former fuel storage areas and in the vicinity of current or historical pipelines.

Non-petroleum related contaminants likely from treated wood in railway tracks and weeds/brush lining railway tracks may have been treated with metals and OCl pesticides. Dioxin/Furan contamination is anticipated to be very localized along former railway line (Figure 2-1). OCl pesticides and arsenic are likely to be more widespread due to former use of termite, weed, and rodent control around structures (see Figure 2-1 for potential locations around above ground storage tanks [ASTs] and pre-1988 buildings) and railway tracks. Lead was a significant constituent of some paints used on structures until at least 1978.

Metal contamination associated with former railway, sewage, or paint may be impacting at least portions of the Harbor as a result of historic activities.

PROJECT TITLE:

FIGURE TITLE:

KNOWN OR SUSPECTED

CONTAMINATION / HAZARD MAP

FIGURE NO.:

DATE:

FEBRUARY 20202-1

·

·

DEMOLITION OF QUONSET HUT

HDOT-HAR, STATE PROJECT NO. H.C. 50113.1

HILO HARBOR, HILO, HAWAII, HAWAII



2-8




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2.6.2 Contaminants of Potential Concern and Construction Materials

If COPCs are present in the soil at concentrations above the most restrictive HDOH Tier 1 EAL for unrestricted land use and you answered “yes” to any questions in Table 2-5, then the construction materials planned need to be assessed to determine whether they are compatible with the COPCs at the site-specific concentrations and/or if soil is planned to be exported from the site, the soil will be considered a waste.

Table 2-5: Construction Material Questions


Question Yes No Are storm drains (including interceptors) or will storm drains be present at the site? X Will any portion of a storm drain (including interceptors) be present at an elevation that is potentially in contaminated groundwater?

X

Will any portion of a utility corridor be present at an elevation that is potentially in contaminated groundwater?

X

Will a portion of any other utility or subsurface structure (other than foundations) extend potentially into contaminated groundwater?

X

Are any potentially flammable or explosive COPCs present at the site (e.g., methane, TPH-GRO)? X Will any electrical lines/utility corridors be subsurface? X Are any COPCs in vapors present at or below 10% of the LEL? Will any elevator shafts or escalator pits, potentially extend into contaminated groundwater? X

Notes: LEL = lower explosive limit % = percent

2.6.2.1 General Construction Considerations All construction activities at the site need to comply with the most updated version of the following:

• Specifications and Proposal for Demolition of Quonset Hut and Pier 4 Pavement Remediation at Hilo Harbor, Hawaii dated January 2019.

• Applicable Federal, State, and Local Permit Conditions.

• Site-specific plans prepared by Contractors: ADD OR DELETE AS APPROPRIATE.

o Health and Safety Plans (HASPs), included in Appendix B o Best Management Plans (BMPs), included in Appendix C o Sampling and Analysis Plan (SAP), included in Appendix D

All graded, excavated, and disturbed soils at the site shall be considered contaminated soil and managed as such until soil samples are collected and tested as specified in Section 7 of this report. All concrete rubble shall be managed as specified in Section 1. A QEP will be on-site to monitor the contaminated media disturbance work. Construction plans and drawings are included in Appendix A.



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2.6.2.3 Construction Material Evaluation A summary of the construction material assessment is shown in Table 2-6.

Table 2-6: Construction Material Assessment


Construction Material in Contact with Contaminated Media

COPC, Concentration, and Media

Proposed Material to be Used

Material Safe with

COPC Yes* No

(ex. Sewer pipe) (ex. TCE, 50 ppmv in groundwater)

(ex. 8” PVC piping)

Note: *Documentation that material is safe to use, and will remain functional, in the presence of the identified contamination should be

included as an attachment to the C-EHMP.

PLEASE CONDUCT AN EVALUATION OF WHETHER THE CONSTRUCTION MATERIALS PLANNED FOR USE ARE COMPATIBLE WITH THE COPCS PRESENT AT THE SITE. THE EVALUATION SHOULD STATE HOW IT WAS DETERMINED THAT THE MATERIALS ARE APPROPRIATE FOR USE UNDER THE SITE CONDITIONS, AND FOR THOSE MATERIALS THAT ARE DETERMINED NOT TO BE APPROPRIATE FOR USE, AN ALTERNATIVE MATERIAL SHOULD BE PROPOSED FOR SUBSTITUTION.

Construction material documentation is included in Appendix E.


Section 3 Summary of Potential Environmental Hazards

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Section 3 Summary of Potential Environmental Hazards The potential environmental hazards associated with contaminated media are shown in Table 3-1 and the chronic and acute direct exposure hazards are shown in Table 3-2. Known and suspected contamination at the site are shown on Figure 2-1. All contaminated media must be properly handled and disposed of in accordance with the guidance in this C-EHMP. Mishandling of contaminated media may result in spreading the contamination to uncontaminated areas of the site or to uncontaminated off-site locations, which may result in fines and other penalties.

Table 3-1: Environmental Hazard Table


COPC

Current Land Use

Hazard Current

Soil

Wat

er

Vapo

r

Dire

ct E

xpos

ure

Leac

hing

Gros

s Con

tam

inat

ion

Ecot

oxic

ity

Vapo

r Int

rusio

n

Drin

king

Wat

er T

oxic

ity

Cons

truc

tion

Wor

kers

Site

Visi

tors

Site

Occ

upan

ts

Gene

ral P

ublic

Futu

re S

ite U

sers

TPH-GRO X X X X X X X X X Toluene X X Ethylbenzene X X Total Xylenes X X X X X X X X

Note: X Potentially complete exposure pathways during the construction project.

Table 3-2: Chronic and Acute Direct Exposure Hazards

TO BE COMPLETED/UPDATED BY THE CONTRACTOR (DELETE OR ADD CHEMICALS AS NEEDED)

COPC

Direct Exposure Hazard

Acute Exposure Chronic Exposure

Inge

stio

n

Inha

latio

n

Abso

rptio

n

Inje

ctio

n

TPH-GRO X X X

Inhalation • Nausea • Loss of appetite • Poor coordination • Difficulty

concentrating Ingestion

Inhalation • Kidney damage • Lower your blood’s ability to

clot Ingestion • Convulsions • Coma



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COPC



Inge

stio

n

Inha

latio

n

Abso

rptio

n

Inje

ctio

n

• Vomiting • Diarrhea • Coughing • Stomach swelling

and cramps • Drowsiness • Restlessness • Painful breathing • Irritability • Unconsciousness Absorption • Itchy, red, sore, or

peeling skin

• Death Target Organs • Alimentary Tract • Hematologic • Kidney • Nervous

TPH-DRO, ORO X X X

Inhalation • Nausea • Eye irritation • Increased blood

pressure • Headache • Light-headedness • Loss of appetite • Poor coordination • Difficulty

Concentrating Ingestion • Vomiting • Diarrhea • Coughing • Stomach swelling and

cramps • Drowsiness • Restlessness • Painful breathing • Irritability • Unconsciousness Absorption • Itchy, red, sore, or

peeling skin

Inhalation • Kidney damage • Lower your blood’s ability to

clot Ingestion • Convulsions • Coma • Death Target Organs • Alimentary Tract • Hematologic • Kidney • Nervous

Ammonia (Aqua ammonia lines) X X X

Inhalation • Irritating to skin, eyes,

throat, and lungs • Coughing • Burns Ingestion

Inhalation • Lung damage • Death



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COPC



Inge

stio

n

Inha

latio

n

Abso

rptio

n

Inje

ctio

n

• Burns in mouth, throat, and stomach

Absorption • Burns • Blindness

VOCs2 X

• Irritation of the eyes and respiratory tract

• Headaches • Dizziness • Visual disorders and

memory impairment

• Prolonged eye, nose, and throat irritation

• Chronic headaches as well as loss of coordination and chronic nausea

• Liver, kidney, and central nervous system damage

• Cancer

Benzene X X X

Inhalation • Drowsiness • Dizziness • Rapid heart rate • Headaches • Tremors • Confusion • Unconsciousness Ingestion • Vomiting • Irritation of the

stomach • Dizziness • Sleepiness • Convulsions • Rapid heart rate • Death

• Bone marrow • Decrease in red blood cells

leading to anemia • Excessive bleeding • Increasing chance for

infection Target Organs • Alimentary Tract • Developmental • Hematologic • Immune • Nervous

Toluene X

Inhalation • Tiredness • Confusion • Weakness • Drunken type actions • Memory loss • Nausea • Loss of appetite

Inhalation • Hearing and color vision loss • Brain damage Target Organs • Alimentary Tract • Developmental • Kidney • Nervous • Reproductive • Respiratory

Ethylbenzene X X X

Inhalation • Throat and eye

irritation

Inhalation • Dizziness • Kidney damage Target Organs



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COPC



Inge

stio

n

Inha

latio

n

Abso

rptio

n

Inje

ctio

n

• Alimentary Tract • Developmental • Endocrine • Kidney • Nervous • Reproductive • Skin

Xylenes X X X

• Headaches • Lack of muscle

coordination • Dizziness • Confusion • Change in one’s sense

of balance • Irritation of the skin,

eyes, nose, and throat • Difficulty in breathing • Problems with lungs • Delayed reaction time • Memory difficulties • Stomach discomfort • Changes in liver and

kidneys

• Headaches • Lack of muscle coordination • Dizziness • Confusion • Change in one’s sense of

balance Target Organs • Nervous • Respiratory

PAHs X X X

• Harmful effects on the skin, body fluids, and ability to fight disease

• Harmful effects on the skin, body fluids, and ability to fight disease

PCBs X X

• Acne and rashes Ingestion • Liver damage

(changes in blood and urine)

• Behavior alterations

Ingestion • Anemia • Acne-like skin conditions • Liver, stomach, and thyroid

gland injuries • Changes in immune system • Behavioral alterations • Impaired reproduction Target Organs • Alimentary Tract • Developmental • Endocrine • Eye • Hematologic • Immune • Reproductive • Skin



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COPC



Inge

stio

n

Inha

latio

n

Abso

rptio

n

Inje

ctio

n

OCl pesticides (Aldrin/Dieldren) X X

Ingestion • Affected liver • Decreased ability to

fight infections

Inhalation • Headaches • Dizziness • Irritability • Vomiting • Uncontrolled muscle

movements

OPP1 X X X

• Physical and mental health

• Weakness or paralysis and paresthesia of the extremities

• Neuropsychological functioning (memory)

• Depression • Memory and concentration

problems • Irritability • Persistent headaches • Motor weakness

Arsenic X X

Ingestion • Nausea • Vomiting • Diarrhea • Decreased production

or red and white blood cells

• Abnormal heart rhythm

• Damage to blood vessels

• Tingling sensation in hands and feet

Absorption • Redness • Swelling

Ingestion/Inhalation • Darkening of the skin • Corns or warts on the palms,

soles, and torso Target Organs • Alimentary Tract • Cardiovascular • Developmental • Hematologic • Nervous • Skin

Barium X

Ingestions • Gastrointestinal

Disturbances • Muscle weakness • Vomiting • Abdominal cramps • Diarrhea • Difficulties in

breathing • Increased or

decreased blood pressure

• Numbness around the face

Ingestion • Changes in heart rhythm • Paralysis • Death • Kidney damage Target Organs • Cardiovascular • Hematologic • Kidney • Reproductive



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COPC



Inge

stio

n

Inha

latio

n

Abso

rptio

n

Inje

ctio

n

Cadmium X X X

Inhalation • Lung damage Ingestion • Irritates the stomach • Vomiting • Diarrhea

Inhalation/Ingestion • Kidney damage • Lung damage • Fragile bones Target Organs • Kidney • Respiratory

Chromium X X X

Inhalation • Irritation of the lining

of the nose, nose ulcers, runny nose, and breathing problems

Ingestion • Irritation and ulcers in

the stomach and small intestine

• Anemia Absorption • Severe redness • Swelling of the skin

• Male reproductive damage Target Organs • Hematologic • Reproductive • Respiratory • Skin

Lead X

• Nervous system

• Decreased learning, memory, and attention

• Weakness in fingers, wrists, or ankles

• Anemia • Damage of kidneys • Increases in blood pressure • Death • Reproductive problems Target Organs • Alimentary Tract • Cardiovascular • Developmental • Hematologic • Immune • Kidney • Nervous • Reproductive

Mercury X X

• Nervous system Inhalation • Brain, kidneys, and

developing fetus damage

• Nausea

• Brain damage • Kidney damage • Birth defects • Tumors • Cancer



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COPC



Inge

stio

n

Inha

latio

n

Abso

rptio

n

Inje

ctio

n

• Vomiting • Diarrhea • Increases in blood

pressure or heart rate • Skin rashes • Eye irritation

Target Organs • Developmental • Immune • Kidney • Nervous

Selenium X X X

Ingestion • Nausea • Vomiting • Diarrhea Inhalation • Respiratory tract

irritation • Bronchitis • Difficulty breathing • Stomach pains

Ingestion • Selenosis (hair loss, nail

brittleness, and neurological abnormalities)

Inhalation • Respiratory irritation • Bronchial spasms • Coughing Target Organs • Alimentary Tract • Cardiovascular • Hematologic • Nervous • Respiratory • Skin

Silver X X X

Inhalation • Breathing problems • Lung and throat

irritation • Stomach pains Absorption • Rash • Swelling • Inflammation

• Argyria (blue-gray discoloration of the skin and other body tissues)

Target Organs • Skin

Notes: X = Potentially complete exposure pathways during the construction project. Exposure hazards complied from Agency for Toxic Substances & Disease Registry (ATSDR) 2019. 1 (United States Environmental Protection Agency [EPA] 2013)

2 (Airboxlab US 2020)



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Section 4 Notification Requirements

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Section 4 Notification Requirements The effective environmental management of any project requires a coordinated effort from all individuals involved. The following sections outline the need to identify the responsibilities of key personnel involved in project construction.

The project owner (owner/developer) is expected to maintain a list of project contacts throughout the construction phase of the project. The key project personnel are as listed in Table 4-1. An updated key project personnel list needs to be submitted to HDOH HEER Office in writing whenever a change in key project personnel occurs.

Table 4-1: Key Project Personnel LIST KEY PROJECT PERSONNEL TO BE COMPLETED/UPDATED BY THE CONTRACTOR

Role Company Name Phone # e-mail Construction PM Construction Foreman:

On-site QEP QEP PM Owner: Operator: Developer: Hawaii District Manager

HDOT-HAR Jeff D. Hood (808) 933-8854

Engineering Environmental Section

HDOT-HAR (808) 587-1960

NPDES Permit Contact:

DPP Building Permit Contact:

HDOH Oversight: HDOH HEER Office PM

(808) 586-0956

Landfill Disposal Contact:

West Hawaii Sanitary Landfill

(808) 886-0940

Waste Transporter Contact:

Contact Export Site (if exporting soil):

Contact Import Sie (if importing soil):

Pipeline and Utility Contacts Dispatch Hawaii One Call 811 Hawaii Gas (808) 594-5574 Terminal Manager Aloha Petroleum (808) 935-0610 Representative (Line damage)

(808) 935-0610


Section 4 Notification Requirements

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Role Company Name Phone # e-mail Operations Specialist

Chevron (808) 527-2707

Dispatch HELCO (808) 935-1171 Notes: PM = Project Manager QEP = Qualified Environmental Professional DPP = Department of Planning and Permitting

All work shall be coordinated with the HDOT-HAR Hawaii District Manager and the Harbors Construction Engineer. Four (4) weeks before work is started, the Contractor shall submit a work schedule to the Director for review. Relocation of any pipelines or utilities shall be coordinated with the appropriate agencies four (4) weeks before work is started.

Formal written notice to the U.S. District Engineer, Fort Shafter, and to the HDOT-HAR Hawaii District Manager and to the HDOT-HAR Construction Engineer, approximately two (2) weeks in advance, whenever equipment or other obstructions will be placed in navigable waters that will prohibit use of other Harbor areas and shall give immediate notice when such obstructions have been removed. The Contractor shall conform to all Harbor regulations affecting his operations.

In addition, if site conditions or planned building configurations change following submittal and acceptance of this C-EHMP by the HDOH HEER Office, then the following agencies must be notified at least 90 days prior to conducting ground-disturbing activities or as soon as the change has been identified. Please note that if HDOH is notified of a change in site conditions or planned building configuration less than 90 days prior to ground-disturbing activities, there could be delays in construction if additional assessment work may need to be conducted. The initial notification of construction activities and any changes can be submitted through the HDOH e-permitting portal using the website link in Table 4-2.

Table 4-2: HDOH E-Permitting Portal Information

Agency Phone Link/Website

HDOH HEER Office (808) 586-4249 https://eha-cloud.doh.hawaii.gov/epermit/app/#/formversion/ed9ca916-7863-459b-b5dd-e66f881381d5

Written clearances must be obtained from Hawaii Gas Maps and Records Department and Hawaii One Call Center must be notified at least five (5) working days prior to starting excavation at the site.

https://eha-cloud.doh.hawaii.gov/epermit/app/#/formversion/ed9ca916-7863-459b-b5dd-e66f881381d5

https://eha-cloud.doh.hawaii.gov/epermit/app/#/formversion/ed9ca916-7863-459b-b5dd-e66f881381d5


Section 5 Requirements for On-site Environmental Oversite

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Section 5 Requirements for On-site Environmental Oversight On-site monitoring is a key component of ensuring that the procedures documented in the C-EHMP are implemented properly and function as intended (e.g. appropriate installation and location of erosion and sediment control measures, cleanliness of equipment, suitability of secondary containment for fuel storage, screening of potential contaminated material, and stockpile segregation). A QEP will be retained as the environmental monitor to provide guidance on implementing the recommended measures and to develop additional mitigation measures if the need arises.

The on-site QEP will have at least 5 years of experience providing environmental oversight for construction projects and must have completed HAZWOPER 40-hour training with current 8-hour refresher.

Monitoring events should be conducted at an appropriate frequency based on specific work tasks/procedures and the potential for adverse impacts to occur. An appropriate schedule (frequency and duration of site visits) will be established between the QEP and all involved regulatory agencies regarding when the QEP is on-site. In general, the QEP will be familiar with the day-to-day conduct of project activities and be on-site during activities with the potential to impact human health or the environment, when contaminated media will be disturbed, when mitigation measures are implemented, or as determined in discussion with the regulatory agencies.

Monitoring should be conducted with greater frequency during periods of inclement weather (e.g., heavy precipitation, strong winds) and during critical components/tasks of the project, such as working in contaminated groundwater. The QEP shall be on-site whenever potentially contaminated media may be disturbed, when hazardous vapors are present, and/or during demolition activities of material involving potential lead-based paint (LBP) and/or asbestos-containing material (ACM). This is necessary to ensure the protection of construction workers, the general public, and the environment.

The primary responsibility of the QEP is to ensure that the environment and human health protection measures are implemented and are adhered to and that any movement, transport, and disposal of contaminated media (on-site and to an off-site location) is properly documented. The list of activities that the QEP shall be present for is listed in Table 5-1.

Table 5-1: Table of Project Activities when QEP Must be Present


Activity

Planned at Site?

QEP Will be

Present? Monitoring Equipment to be Used by QEP

Yes No Yes No

Environmental Sampling X X Disposable sampling equipment, PID, laboratory provided sampling jars, chain of custody forms



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Activity

Planned at Site?

QEP Will be

Present? Monitoring Equipment to be Used by QEP

Yes No Yes No

Geotechnical Sampling X X Silt Fence Installation X X

Demolition X X Disposable sampling equipment, PID, laboratory provided sampling jars, chain of custody forms

Grading X X

Excavation X X Disposable sampling equipment, PID, laboratory provided sampling jars, chain of custody forms, camera

Pile Installation X X UST Removal X X Dewatering X X

Utility Trenching X X Disposable sampling equipment, PID, laboratory provided sampling jars, chain of custody forms, camera

Soil Export/Import X X Truck tickets/manifests, camera Vapor Barrier Installation X X Vapor Extraction X X Confined Space Work X X Work Below High-Water Mark X X Engineering Control Installation and Testing X X

Pipeline Tapping X X Disposable sampling equipment, PID, laboratory provided sampling jars, chain of custody forms, camera

Installation of Erosion/Sediment Controls

X X

Prior to/During Rainstorm Events X X

Other: Other: Other:

Responsibilities of the QEP include the following:

• Direct the segregation of contaminated media.

• Communicate the requirements of the C-EHMP to project members during pre-job and tailgate meetings.

• Remain on-site as per the schedule established between parties prior to project start. The QEP will remain on-call during non-critical work periods to respond to emerging environmental issues.

• Review the contractor’s work procedures to ensure functionality and compliance with the C-EHMP and applicable regulations, standards, and BMPs.

• Provide advice in preparing for work activities in a manner that mitigates adverse environment or health effects.



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• Exercise the authority to modify and/or halt any construction activity at any time if deemed necessary for the protection of human health and the environment.

• Advise project members if project activities have caused or are likely to cause an environmental incident and make recommendations for corrective action(s).

• Monitor compliance with the C-EHMP and relevant permit conditions.

• Liaise directly with project members and provide technical advice for the purpose of resolving situations that may impact human health and the environment as they arise.

• Maintain complete records of activities related to the implementation of the C-EHMP. This should include any measurements taken (e.g. pH, turbidity, temperature, conductivity, PID screening, air monitoring, equipment calibration), manifests, truck receipts, truck counting spreadsheets, photographs, and incident reports.

• Complete and submit environmental monitoring reports to the HDOH HEER Office and report any unanticipated adverse effects to the environment. Such reports must include the nature of the effect, its cause, mitigation, and/or remediation implemented, and whether a work stoppage was ordered, as well as photographs, analyses, and measurements, if applicable.

• Report unanticipated encounters with contamination at the site in accordance with Hawaii Revised Statues (HRS) 128D. Reportable releases include contamination not already identified at the site, as well as tanks, drums, and/or abandoned pipelines that are not identified in advance and are encountered during excavation.



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Section 6 Construction Activities

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Section 6 Construction Activities The proposed construction activities at the site include the demolition and disposal of the existing Quonset Hut to the foundation including proper termination of existing utility systems such as water, drain, sewer and electrical within the project site, all steps to remove and dispose of hazardous wastes as required, and all appurtenant work thereto. A grading permit is not required for this project as it is exempt from permit requirements from the County of Hawaii (HDOT-HAR 2019). Construction plans and drawings are included in Appendix A. Planned types of excavations at the site are outlined in Table 6-1.

Table 6-1: Planned Types of Excavations


Excavation Type Maximum Depth Potholing for Utility Locating Utility Corridors Storm Drain Mass Excavation Grading Etc.

CONTRACTOR NEEDS TO ADD SITE-SPECIFIC INFORMATION ON CONSTRUCTION PLANS. LOCATIONS OF STOCKPILED SOIL AND STAGING AREAS NEEDS TO BE ADDED TO FIGURES OR AN ADDITIONAL FIGURE ADDED.

Staging Areas for the project are shown in Figure 6-1.



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Figure 6-1: Construction Staging Areas



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Section 7 Soil Management Plan

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Section 7 Soil Management Plan The purpose of the Soil Management Plan is to ensure that contaminated soil is properly handled and managed. The extent of contaminated soil is unknown (e.g., contamination is not delineated); therefore, all soil at the site must be treated as potentially contaminated. The management of potentially contaminated soil will be overseen by an on-site QEP.

Contaminated soil is defined as soil containing concentrations of contaminants above HDOH Tier 1 EALs for Unrestricted land use (referred to as HDOH Tier 1 EALs) within 150 meters (approximately 500 ft) from surface water and over a drinking water source.

All work shall be coordinated with the HDOT-HAR Hawaii District Manager and/or Construction Engineer. Four (4) weeks before work is started, the Contractor shall submit a work schedule to the HDOT-HAR Director for review.

All existing AC pavement and other surfacing within the project area as shown on the construction drawings included in Appendix A will be removed.

7.1 Soil Management Soil disturbed at the site will be continuously monitored and documented by the QEP. Where known or suspect contaminated soil is encountered during excavation, the appropriate response actions must be taken that conform with HDOH and EPA guidance, laws, and regulations. This includes proactive planning to ensure that workers have the appropriate level of personal protection equipment (PPE) and that contaminated soil is managed properly when excavated. Tasks associated with properly managing contaminated soil include the following:

• Where contaminated media is encountered, a QEP shall provide field oversight to ensure:

1. Known or suspect contaminated soil is segregated from clean soil, 2. Known or suspected contaminated soil is properly stored and covered with plastic sheeting, 3. Contaminated soil is managed properly during and following excavation, and 4. Health and safety guidance related to potential exposure of workers to COPCs is provided.

• Workers who may come into contact with contaminated media must wear the appropriate level of PPE as further discussed in the Site-Specific HASP.

• Workers who may come into contact with contaminated media must have required training (at a minimum, 40-hour HAZWOPER certification and current 8-hour annual refresher training).

• Soil trucked off-site should be drained of fluids and the load must be covered with a dust screen during transport.

• If newly encountered soil contamination is discovered at a previously unknown source or location, the HDOH HEER Office must be immediately notified of its discovery by reporting it as a new release.



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Construction drawings maps are included in Appendix A. No confined space entry is anticipated during this project.

7.1.1 Field Identification of Contaminated Soil

Some COPCs, including, but not limited to metals, dioxins, pesticides, and PCBs, cannot be identified in the field through visual and olfactory observations. In some cases, previous sampling or historical research into previous industrial operations may have identified areas where these COPCs are likely present at concentrations above the most restrictive HDOH EALs that are targeted for excavation. If your site contains COPCs that are not identifiable via qualitative field observations, the contaminated soil must be managed in a manner protective of site workers, the public, and the environment. Areas of known or suspected contaminated media are depicted in Figure 2-1. Soils in these areas must be segregated and stockpiled separately from clean soil. All soil at the site, because the site is not delineated, must be presumed to be contaminated with site-specific COPCs and identified as “suspect” or “presumed” contaminated.

Other types of contaminated soil may be identified in the field through visual and olfactory observations. Petroleum-contaminated soil (PCS) typically exhibits petroleum staining and/or a petroleum hydrocarbon odor. Free product may or may not be observed. PCS may be also detected indirectly via a rotten egg odor stemming from anaerobic degradation of the product that produces hydrogen sulfide in oxygen starved zones. Suspected contaminated soil should be segregated from clean material. Soil with a strong petroleum or solvent odor and/or free phase product should be segregated separately from the moderately impacted soil, as soil that is considered grossly contaminated (soil headspace screening with a PID with a reading of 200 parts per million by volume [ppmv] or above) must be removed, may not be replaced in the excavation and must be properly disposed of. During excavation of known or suspected contaminated soil, the QEP must perform the following activities:

• Monitor the location of excavation activities to ensure that soil depicted on hazard maps is properly managed as contaminated, even when there is no field evidence of contamination.

• Visually screen soils for staining, debris, soil waste, discoloration, or other evidence of contamination as the soils are removed from the excavation.

• Check for petroleum or other unusual chemical odors emanating from the soil.

• Collect soil screening samples in sealable inert bags and test the headspace within each bag for VOCs using a PID and following the Maine Department of Environmental Protection PID Bag Headspace Test procedure described in detail in Section 8.4.2 of the HDOH HEER TGM (HDOH HEER Office 2008 and updates). Prior to testing, PID meters must be calibrated in accordance with device manufacturer instructions.

• Use the field observations, VOC measurements, and any other field screening tests, such as the glove and paper towel tests, to segregate the soil properly.



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7.1.1.1 Gross Contamination Screening Qualitative field screening techniques that may be helpful in determining the presence of free product and/or grossly contaminated soil (TPH>5,000 milligrams per kilogram [mg/kg]) include water, glove, and paper towel field screening techniques.

• Water testing for gross contamination consists of placing a handful of soil into a small container with water and observing for the presence of a sheen or separate phase product on the surface of the water, or on the edges or bottom of the container.

• Glove testing for gross contamination of TPH consists of squeezing a handful of soil in a gloved hand. If oil droplets remain on the glove after releasing the soil, assume that TPH>5,000 mg/kg.

• Paper towel testing for gross contamination of TPH consists of squeezing a handful of soil in a paper towel. If oil droplets appear on the paper towel, assume that TPH>5,000 mg/kg.

7.1.2 Dust and Erosion Control

Dust and erosion controls at the site will be continuously monitored and documented by the QEP. Prior to excavation activities, the Contractor and the QEP must evaluate and establish erosion control and dust control measures to prevent impacted soils from migrating away from the excavation area.

Dust control measures should ensure compliance with ambient air quality standards established in the HAR §11-59 and should comply with air pollution control requirements specified in HAR §11-60.1. During excavation and handling of impacted soil, the following dust control measures must be implemented to minimize dust generation:

• Sediment fences or barriers: BMPs associated with erosion control measures shall include the installation of sediment fences or barriers (filter socks) downslope of all disturbed areas and along the perimeter of the project area. Dust barriers must be used where extensive excavation is anticipated. All storm drain inlets on-site and those off-site which may receive runoff from the site shall use an inlet protection device (i.e., compost filter sock). Temporary Mirafi geotechnical fabric or approved equal will be placed on grated drain inlets with placement between the grating and grating frame. The locations of sediment fences and barriers that will be constructed for this site are depicted on the construction drawings, included in Appendix A.

• Erosion control: BMPs to control runoff leaving the site shall include the installation of filter socks filled with EPA and HDOH acceptable compost material or approved equal. A minimum of six inches of overlap will be used when joining two sections of filter sock. The Contractor shall remove any debris in the path of the filter sock to ensure good ground contact. Wood anchor stakes will be used to anchor the filter socks and the spacing will be 10 ft for slopes less than 2:1 and 5 ft for slopes 2:1. All slopes and exposed areas shall be immediately mulched or planted when final grades are established or when grading work will be delayed for more than two weeks and before the removal of the project’s temporary BMPs. The area will be covered with by either buildings, concrete walkway or asphaltic concrete (AC) pavement and exposed areas shall be landscaped when final grades are established. The locations of filter socks are depicted on the construction drawings, included in Appendix A.



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• Equipment decontamination: BMPs to control the transport of contaminated soil from the site and within the site shall be used to limit the tracking of soil away from the excavation area. Decontamination areas should be set up adjacent to excavation areas where contaminated media will be disturbed, adjacent to stockpile areas, and where vehicles and equipment leaves the site. Decontamination protocols are described in Section 15. Staging Areas for the project are shown in Figure 6-1.

• Wetting/misting: BMPs associated with dust control measures shall include the use of water to be sprayed on the soil during excavation activities. During excavation, water shall be sprayed on the surface of the soil to prevent dust from being generated. However, the amount of water used for dust control shall be minimized as to not create runoff away from the excavation. Dust shall be kept within acceptable levels at all times.

PLEASE ADD ANY OTHER SITE-SPECIFIC REQUIREMENTS, IF APPLICABLE.

7.1.3 Excavation and Stockpiling

Construction activities should be structured to result in minimal soil disturbance and to minimize dust generation. Activities should be sequenced to minimize the potential for exposure of site workers. As an example, all earthwork (e.g., trenching for utilities, excavation of footings) should be performed prior to mobilization of other trade personnel to minimize the number of workers at the site that may be exposed to airborne particulates.

The project shall require the removal of AC pavement and other surfacing within the area; removal of organic material, junk, rubbish, and other objectionable material from the project site; relocation of utilities and other facilities (if required); backfilling of resulting trenching, holes, and pit; and soil grading and excavation/stockpiling of the underlying soils (if any) that may contain contaminated soils.

The QEP shall direct the segregation of the soil into three (3) separate soil piles:

• Pile No. 1 will consist of clean soil;

• Pile No. 2 will consist of soil excavated from areas found to be contaminated or suspected to be contaminated; and

• Pile No. 3 will consist of soil that is grossly contaminated.

Contaminated soil stockpiles suspected contaminated soil stockpiles, and grossly contaminated soil stockpiles shall be placed onto 20-mil plastic sheeting. Underlay edges of the plastic sheeting with bermed soil. Ensure that the height of the bermed soil will be sufficient to prevent stormwater runoff from breaching it. Place the excavated soil inside the bermed area on top of the plastic sheeting. Cover the stockpiles with 6-mil plastic sheeting in the bermed area to mitigate dust concerns caused by wind and prevent contact with rainwater and stormwater runoff. Secure the plastic cover with sufficient ballast and place sediment control devices along the entire toe of each stockpile.



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Each stockpile shall not exceed 100 cubic yards (yd3) and shall be located away from drainage features, surface waters, and stormwater drainage paths. Or, the soils can be placed in watertight containers, such as 20-yard steel roll-off bins, drums, etc. These containers shall be covered.

The Contractor shall have representative MULTI INCREMENT1 soil samples taken from each stockpile (Pile No. 1, 2, and 3) and tested in accordance with HDOH guidelines, standards, and regulations, such that the soil sample report, prepared by the QEP, can specifically state one of the following:

a. “The soil is not a regulated hazardous waste and is acceptable for disposal at a HDOH permitted facility” or

b. “The soil is acceptable for unrestricted reuse.”

Sampling and testing of the stockpiles shall be, at a minimum, in accordance to the latest edition of the HDOH’s Guidance for Soil Stockpile Characterization and Evaluation of Imported and Exported Fill Material (HDOH HEER Office 2017b) (i.e., for commercial or industrial use only site the recommended decision unit [DU] area of 20,000 square ft, 400 yd3 volume, with a 6 inch depth). The QEP shall direct the soil sampling collection and testing methods in accordance with the most current guidelines. Stockpiles shall be tested using MULTI INCREMENT sampling approaches. Appropriate DU volumes for larger stockpiles of soil should be discussed with the HDOH HEER Office on a case-by-case basis. The Contractor shall also confirm, with the HDOH permitted facility, the facility’s sampling requirements, as well as their standards for disposal.

Any liquid-phase oil or free product associated with the contaminated soil shall be drained prior to stockpiling. If feasible, the free product should be separated from the soil, properly stored, profiled, and disposed of at an approved recycling/disposal facility.

For any soils hauled off Harbor property, the Contractor shall be responsible for the legal disposal. The Contractor shall implement and maintain the following:

• A form, signed by the Contractor and haul truck driver containing the following information:

o The date the material is being taken off Harbors property. o The name of the haul trucking company. o The haul truck number and license plate number. o The quantity of material being loaded into the haul truck. o The disposal facility or location of where the material is to be taken. o The time the truck left the project site.

• The form and waste manifest from the HDOH permitted facility shall be provided to the HDOT-HAR Hawaii District Manager and/or Construction Engineer or its representative by the close of the next working day. The Contractor shall verify that the quantity of material loaded into the

1 MULTI INCREMENT® is a registered trademark of EnviroStat, Inc.



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truck, as indicated on the form, exactly matches the quantity of material disposed at the HDOH permitted facility, as indicated on the waste manifest.

• The Contractor shall maintain a log that summarizes each form and waste manifest for ease of tracking and monitoring.


Stockpile locations are shown in Figure 6-1. In the event the location of stockpile(s) changes or stockpiles are moved, then updated Figures must be provided to HDOH as soon as possible.

7.2 Soil Reuse and Disposal Excavated soils may be reused on-site (within the construction site boundaries) with the prior approval of the HDOT-HAR Hawaii District Manager and/or Construction Engineer, HDOH HEER Office, and subject to the following conditions:

• Representative soil samples have been taken and tested in accordance with HDOH standards and regulations.

• The contaminated soil can only be reused within proximity of its original excavation.

• The contaminated soil is placed within areas more than 150 meters from surface water and drainage features.

• The contaminated soil cannot be placed beneath or within the footprint of a planned building structure.

• The contaminated soil can only be placed at an elevation above the tidally influenced high-water table and at least 1-ft below the finish surface grade. The more highly impacted soil should be placed at the bottom of the excavation and the cleanest soil at the top of the excavation. At least 1-ft of clean soil must be placed as the final backfill layer at the top. The excavation shall then be capped with an impervious layer, such as concrete and asphalt.

• The contaminated soil cannot contain any free oil, oil sheens, oil stains, or TPH concentrations exceeding 5,000 mg/kg.

• The contaminated soil is not considered a hazardous waste pursuant to Federal and State laws.

• Contaminated soil shall not be reused in areas that are uncontaminated.

If construction plans change, such that soil will be imported or exported from the site, then this C-EHMP must be revised and re-submitted to the HEER Office for review and approval at least 90 days prior to importing or exporting soil from the site, or as soon as the change has been identified.

Prior to reuse of soil off-site or disposal at a licensed disposal facility, all soil will be sampled to ensure that it is appropriately characterized so the final disposition of the soil may be determined. Below are the planned location(s) for soil reuse or disposal. If other locations are later planned following approval of this plan, then the HEER Office must be notified and provide approval prior to any material being transported.



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DETERMINE WHAT SAMPLING METHOD WILL BE USE AND ADJUST/ADD AN ADDITIONAL INFORMATION. The SAP is included in Appendix D.

Sampling During Stockpile Formation:

Samples will be collected from the stockpile right after deposition from the source area to a stockpile allowing for equal and unbiased access to the entire mass of soil and the preparation of representative samples. Sample collection will be conducted every five cubic yards. The amount of DUs will depend on the amount of excavated material. Each MULTI INCREMENT sample will consist of 30 to 75 increments.

Sampling After Stockpile Formation:

Samples will be collected from the existing stockpiles stockpile by flattening the pile/moving the stockpile/or if the stockpile is to large from the surface/or by removing multiple “faces” of the stockpile and collecting increments from the newly exposed material. The amount of DUs will depend on the amount of excavated material. Each MULTI INCREMENT sample will consist of 30 to 75 increments.

The soil sample analytical methods and sampling frequency are listed in Table 7-1.

Table 7-1: Soil Sample Collection and Handling


Chemicals to Analyze Analytical Method Sampling Frequency (cy3 per Sample) TPH-GRO SW-846 5035/8015B 20 cy3

TPH-DRO SW-846 3550C/8015B 20 cy3 TPH-ORO 20 cy3 Ammonia SM-846 9080 20 cy3 VOCs (including BTEX) SW-846 5035/8260B 20 cy3 PAHs SW-846 3550C/8270C-SIM 400 cy3 PCBs (Aroclor only) SW-846 3550C/8082 400 cy3 OCl Pesticides SW-846 3520C/8081B 400 cy3 OPP SW-846 3546 20 cy3 RCRA 8-Metals (arsenic, barium, cadmium, chromium, lead, mercury, selenium, and silver)

SW-846 3050B/6010B/7471A 20 cy3

TCLP Metals* SW-846 3010A/6010B/7470A N/A Ignitability EPA Method 1030 N/A

Note: Larger volumes may be acceptable on a case-by-case basis and need to be approved by the HDOH HEER Office prior to sampling. Collect triplicate MULTI INCREMENT samples in ten percent of the DUs (minimum one set).

*Toxicity Characteristic Leaching Procedure (TCLP) sampled using the “20X TCLP” rule regarding the minimum concentration of chemicals in soil necessary to require TCLP test data prior to disposal at a construction/demolition waste landfill.

PRIOR TO ANALYZING SAMPLES AT THE LABORATORY, CHECK THAT THE LABORATORY LIMITS ARE BELOW THE MOST RESTRICTIVE UNRESTRICTIVE EAL (UNRESTRICTED USE, <150M FROM SURFACE WATER, LOCATED ABOVE DRINKING WATER) FOR EACH COPC. INCLUDE A TABLE IF LABORATORY LIMITS ARE NOT SENSITIVE ENOUGH TO MEET UNRESTRICTED EALS.

All soil samples shall be collected in accordance with the HEER Office TGM. This requires the collection of MULTI INCREMENT soil samples to properly characterize the soil.



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The current construction plans do not anticipate contingencies for alternate soil reuse; therefore, if plans, then this C-EHMP will be revised and re-submitted to the HEER Office for review and approval at least 90 days prior to moving soil off-site. Table 7-2, shows the off-site disposal/reuse table.

Table 7-2: Off-Site Disposal/Reuse Table


Reuse Location (DELETE IF NOT REUSING OFF-SITE)

Disposal Location

Name of Reuse or Disposal Location

West Hawaii Sanitary Landfill*

Address of Reuse or Disposal Location

71-1111 Queen Ka’ahumanu Highway Waikoloa Village, HI 96738

Land Use (Site Zoning) Agricultural *Does not accept hazardous waste.

This information will be communicated to the soil hauler and it will be ensured that the hauler only dispose of soil at locations approved in this plan. The QEP will monitor and review hauling manifests and disposal records to ensure adherence to the plan. Disposal of soil at a location not previously approved could result in fines.

On-site Reuse of Known or Suspect Contaminated Soil

In general, contaminated soil may be reused on-site. Contaminated or suspect contaminated soil will be replaced in the same area and at a similar depth as where the soil was originally excavated. The QEP will ensure that contaminated soil is not spread to uncontaminated areas of the site without prior approval from HDOH. Any soil reused on-site will be covered with AC pavement.

7.2.1 Soil Sampling for Reuse (DELETE IF NOT REUSING OFF-SITE)

Soil excavated may be reused off-site at an appropriate site if concentrations of contaminants are below the most conservative unrestricted HDOH EALs. Consultation and agreement with the HDOH HEER Office must occur if reuse off-site is anticipated. A soil agreement signed by the generating and receiving party must be submitted to the HDOH HEER Office prior to any reuse. Table 7-3, shows the volume of soil proposed to be exported from the site.

Table 7-3: Volume of Soil Proposed for Export


Total Volume of Soil Proposed for Export (cy):



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Stockpile sampling accordingly requires the following parameters, shown in Table 7-4.

Table 7-4: Stockpile Sampling Parameters for Export


Commercial/Industrial Use Stockpile Volume (yd3) per sample 20 yd3

# of increments per MULTI INCREMENT sample 30

7.2.2 Stockpile Sampling for Disposal at a Disposal Facility

If soil will be disposed of at an appropriate permitted waste disposal facility the MULTI INCREMENT sampling requirements are shown in Table 7-5.

Table 7-5: Stockpile Sampling Parameters for Disposal


Disposal Facility Requirements Stockpile Volume (yd3) per sample 20 yd3 # of increments per MULTI INCREMENT sample 30

The soil will be disposed of at the following permitted site:

West Hawaii Sanitary Landfill 71-1111 Queen Ka’ahumanu Highway

Waikoloa Village, HI 96738 (808) 886-0940

In the event that contaminated soil is determined by laboratory analysis to be a hazardous waste and consultation with the HDOT- HAR Hawaii District Manager and/or Construction Engineer, the waste will be transferred to a mainland landfill permitted in accordance with 40 Code of Federal Regulations (CFR) 270 or operating under interim status in accordance with 40 CFR 265 requirements or permitted by a state authorized by the EPA to administer the RCRA permit program. The Contractor in consultation with the HDOT-HAR Engineer, shall identify all waste codes applicable to each hazardous waste stream based on requirements in 40 CRF 261 or any applicable state or local law, or regulations. Waste profiles, analyses, classification, and treatment standards information shall be submitted to the HDOT-HAR Engineer for review and approval.

All hazardous materials will be packaged consistent with the authorizations referenced in the Hazardous Materials Table in 49 CFR 172, Section. 101, and Column 8. Bulk and non-bulk packaging shall meet the corresponding specifications in 49 CFR 173 referenced in the Hazardous Material Table, 49 CFR 172 Section.101. The Contractor shall provide primary and subsidiary labels for hazardous wastes consistent with the requirements in the Hazardous Materials Table in 49 CFR 172, Section.101, Column 6. Labels shall meet design specifications required by 49 CFR 172, Subpart E including size, shape, color, printing, and symbol requirements. Labels shall be durable and weather resistant and capable of withstanding, without



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deterioration or substantial color change, a 180-day exposure to conditions reasonably expected to be encountered during container storage and transportation. The Contractor will also provide primary and subsidiary placards consistent with the requirements of 49 CFR 172, Subpart F. Placards shall be provided for each side and each end of bulk packaging, freight containers, transport vehicles, and rail cars requiring such placarding. Placards may be plastic, metal, or other material capable of withstanding, without deterioration, a 30-day exposure to open weather conditions and shall meet design requirements specified in 49 CFR 172, Subpart F.

7.2.3 Record Keeping

A log of all soil that leaves the site and its final disposition will be maintained by the QEP. All waste manifests, truckload counts at source and receiving site, weigh tickets, and soil profiles will be included in a final report documenting the environmental oversight conducted during construction. The report will be submitted to the HDOH HEER Office at the conclusion of the project. In addition, whenever soil is exported from the site, summary reports of the disposal records, including copies of documents, will be submitted to the HDOH HEER Office on a weekly or monthly basis, unless waived in writing by the HDOH HEER Office PM. For all soil disposed of at a disposal facility a manifest with all required signatures will be submitted.

DELETE IF NO IMPORTING OF SOIL IS ANTICIPATED

If soil will be imported to the site, then the QEP must collect and maintain similar records and provide them to the HDOH HEER Office for review and approval. Documentation that the import material is clean must be provided by the soil generator and a soil agreement must be signed between the generator and the site owner. If contaminated soil will be brought onto the site and used for fill, then the QEP must document where the contaminated soil will be used, the volume of soil, and COPC concentrations. This information must be incorporated into an Environmental Hazard Evaluation (EHE)/Environmental Hazard Management Plan (EHMP) for the site following the completion of the project and the contaminated soil must be managed for as long as it remains present at the site.


Section 8 Concrete Waste Management Plan

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8.1 Concrete Waste Management The project consists of removing the existing AC pavement for disposal and/or recycling. The AC pavement based on industrial use of the site may be contaminated. The AC pavement will be removed from the site and will be continuously monitored and documented by the QEP. Where known or suspect contaminated concrete is encountered during excavation, the appropriate response actions must be taken that conform with HDOH and EPA guidance, laws, and regulations. This includes proactive planning to ensure that workers have the appropriate level of PPE and that contaminated concrete is managed properly when excavated. Tasks associated with properly managing contaminated concrete include the following:

• Where contaminated media is encountered, a QEP shall provide field oversight to ensure:

1. Known or suspect contaminated concrete is segregated from recyclable concrete, 2. Known or suspected contaminated concrete is properly stored and covered with plastic

sheeting, 3. Contaminated concrete is managed properly during and following excavation, and 4. Health and safety guidance related to potential exposure of workers to COPCs is provided.

• Workers who may come into contact with contaminated media must wear the appropriate level of PPE as further discussed in the Site-Specific HASP.

• Workers who may come into contact with contaminated media must have required training (at a minimum, 40-hour HAZWOPER certification and current 8-hour annual refresher training).

• Contaminated concrete removed from the site must be covered with a dust screen during transport.

8.1.1 Field Identification of Contaminated Concrete

Field identification of contaminated concrete will be conducted through visual and olfactory observations (in the same manner as described in Section 7.1.1) as well as historical research into industrial operations, as shown in Figure 2-1. Concrete in these areas must be segregated and stockpiled separately from clean concrete. All concrete at the site shall be presumed to be contaminated with site-specific COPCs and identified as “suspect” or “presumed” contaminated.

During excavation of known or suspected contaminated concrete, the QEP must perform the following activities:

• Monitor the location of excavation activities to ensure that areas of contamination depicted on the hazard map is properly managed as contaminated, even when there is no field evidence of contamination.

• Visually screen concrete for staining, debris, soil waste, discoloration, or other evidence of contamination as the concrete is excavated.

• Check for petroleum or other unusual chemical odors emanating from the concrete.



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• Use the field observations, and any other field screening tests, such as the glove and paper towel tests, to segregate the concrete properly (as outlined in Section 7.1.1.1).

8.1.2 Dust and Erosion Control

Dust and erosion controls at the site will be continuously monitored and documented by the QEP using the same methods outlined in Section 7.1.2.

8.1.3 Excavation and Stockpiling

The project shall require the removal of AC pavement and other surfacing within the area; removal or organic material, junk, rubbish, and other objectionable material from the project site; relocation of utilities and other facilities (if required); backfilling of resulting trenching, holes, and pits; and soil grading and excavation/stockpiling of the underlying soils (if any) that may contain contaminated soils.

Sampling and testing of the concrete shall be done post-demolition. The concrete material must be stockpiled on the property where it is generated if it is to be salvaged for recycling opportunities. The QEP shall direct the segregation of the concrete into two (2) separate piles:

• Pile No. 1 will consist of clean recyclable concrete and

• Pile No. 2 will consist of concrete excavated from areas found to be contaminated or suspected to be contaminated.

Source separated concrete, block, brick, and concrete fines (processed concrete fines or concrete mixed with soil, sand, stone, etc.) at the site. The Contractor shall test the waste according to the methods set forth in subpart C of HAR 11-261. The concrete samples will also be tested for ACM and LBP by a State of Hawaii certified Asbestos Hazard Emergency Response Act Building Inspector.

Concrete materials containing contamination entirely below the HDOH EALs shall be considered eligible for salvaging for recycling opportunities for direct unrestricted use off-site in compliance will all other requirements. Compliance with any Federal, State, and local requirements is still required for all uses of concrete materials.

Concrete materials containing any contaminant above the HDOH EALs are considered solid wastes and must be managed in accordance with all statutory and HDOH regulatory requirements including, but not limited to, the full requirement for solid waste including classification as hazardous waste as necessary, or at specific construction and demolition recycling centers authorized to accept the material in accordance with HDOH requirements.

No sampling of concrete is required if the concrete is disposed of as a solid waste.

Concrete will be tested using MULTI INCREMENT sampling approaches. The Contractor shall also confirm, with the HDOH permitted facility, the facility’s sampling requirements, as well as their standards for disposal.



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For any concrete hauled off Harbor property, the Contractor shall be responsible for the legal disposal. The Contractor shall implement and maintain the following:

• A form signed by the Contractor and haul truck driver. The form shall contain the following information:

o The date the material is being taken off Harbors’ property. o The name of the haul trucking company. o The haul truck number and license plate number. o The quantity of material being loaded into the haul truck. o The disposal facility or location of where the material is to be taken. o The time the truck left the project site.

• The form and waste manifest from the HDOH permitted facility shall be provided to the HDOT-HAR Hawaii District Manager and/or Construction Engineer or its representative by the close of the next working day. The Contractor shall verify that the quantity of material loaded into the truck, as indicated on the form, exactly matches the quantity of material disposed at the HDOH permitted facility, as indicated on the waste manifest.

• The Contractor shall maintain a log that summarizes each form and waste manifest for ease of tracking and monitoring.


STOCKPILE LOCATIONS NEED TO BE ADDED TO THE CONSTRUCTION DRAWINGS OR AN ADDITIONAL FIGURE GENERATED. In the event the location of stockpile(s) changes or stockpiles are moved, then updated Figures must be provided to HDOH as soon as possible.

8.2 Concrete Disposal Prior to disposal at a licensed disposal facility or export to a recycling center, all concrete will be sampled to ensure that it is appropriately characterized so the final disposition of the concrete may be determined. If other locations are later planned following approval of this plan, then the HEER Office must be notified and provide approval prior to any material being transported.

DETERMINE WHAT SAMPLING METHOD WILL BE USE AND ADJUST/ADD AN ADDITIONAL INFORMATION.

All concrete samples shall be biased toward visible staining or other indication of potential contamination (e.g., source of material, coloration, odor).

Chip and/or core samples will be collected for analysis. Core samples shall be no deeper than 1-inch unless staining or discoloration indicates that contamination is below that depth. Sampling logs shall record the depth of core samples. Confirmatory sampling is required of material intend for recycling sections of material are removed.

Due to the labor involved in collecting the concrete samples, composite samples will consist of 10 increments, which will be collected from each concrete building foundation/concrete pad. Increments will



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be collected in a stratified random fashion (i.e., even spacing along a serpentine line traversing the area with a random starting point). A handheld rotor hammer will be used to bore through the top few inches of the concrete slab. Dust from the ten borings will be collected and placed directly into specially cleaned glass sample containers provided by the laboratory for analysis.

Sampling areas shall be determined based on each distinct area of demolition (e.g., separate structures, area of site, suspected areas of contamination, driveway/roadway). The sampling frequency is dependent on the number of areas of biased sampling and whether contamination is found at sampling locations. Material used for samples shall not exceed 1-inch maximum in depth. Concrete sample analytical methods and sampling frequency is shown in Table 8-1. The SAP is included in Appendix D.

Table 8-1: Concrete Sample Collection and Handling


Chemicals to Analyze Analytical Method Sampling Frequency (CY per Sample) TPH-GRO SW-846 5035/8015B 400 cy3

TPH-DRO SW-846 3550C/8015B 400 cy3 TPH-ORO 400 cy3 Ammonia SM-846 9080 400 cy3 VOCs (including BTEX) SW-846 5035/8260B 400 cy3 PAHs SW-846 3550C/8270C-SIM 400 cy3 PCBs (Aroclor only) SW-846 3550C/8082 400 cy3 OCl Pesticides SW-846 3520C/8081B 400 cy3 OPP SW-846 3546 400 cy3 Asbestos 3015/3051/7060A/7061A In a distributive manner, a minimum of

three samples collected from each homogenous area that was 1,000 ft2 or less; a minimum of five samples collected each homogenous area that was greater than 1,000 ft2 but less than or equal to 5,000 ft2; or a minimum of seven samples collected from each homogenous area that was greater than 5,000 ft2.

LBP 7420 RCRA 8-Metals (arsenic, barium, cadmium, chromium, lead, mercury, selenium, and silver)

SW-846 3050B/6010B/7471A 400 cy3

TCLP Metals* SW-846 3010A/6010B/7470A N/A Ignitability EPA Method 1030 N/A

Note: Larger volumes may be acceptable on a case-by-case basis and need to be approved by the HDOH HEER Office prior to sampling. Collect triplicate MULTI INCREMENT samples in ten percent of the DUs (minimum one set).

*TCLP sampled using the “20X TCLP” rule regarding the minimum concentration of chemicals in soil necessary to require TCLP test data prior to disposal at a construction/demolition waste landfill.

PRIOR TO ANALYZING SAMPLES AT THE LABORATORY, CHECK THAT THE LABORATORY LIMITS ARE BELOW THE MOST RESTRICTIVE UNRESTRICTIVE EAL (UNRESTRICTED USE, <150M FROM SURFACE WATER, LOCATED ABOVE DRINKING WATER) FOR EACH COPC. INCLUDE A TABLE IF LABORATORY LIMITS ARE NOT SENSITIVE ENOUGH TO MEET UNRESTRICTED EALS.



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All soil samples should be collected in accordance with the HEER Office TGM. This requires the collection of MULTI INCREMENT samples to properly characterize the concrete debris.

The current construction plans do not anticipate contingencies for alternate concrete reuse; therefore, if plans, then this C-EHMP will be revised and re-submitted to the HEER Office for review and approval at least 90 days prior to moving soil off-site. Table 8-2, shows the off-site disposal/recycling table.

Table 8-2: Off-Site Disposal/Recycling Table


Recycling Location Disposal Location Name of Reuse or Disposal Location

West Hawaii Concrete* West Hawaii Sanitary Landfill*

Address of Reuse or Disposal Location



Land Use (Site Zoning) Industrial Agricultural *Does not accept hazardous waste.

This information will be communicated to the soil hauler and it will be ensured that the hauler only dispose of concrete at locations approved in this plan. The QEP will monitor and review hauling manifests and disposal records to ensure adherence to the plan. Disposal of concrete at a location not previously approved could result in fines.

8.2.1 Stockpile Sampling for Disposal at a Disposal Facility

If concrete will be disposed of at an appropriate permitted waste disposal facility the MULTI INCREMENT sampling requirements are listed in Table 8-3.

Table 8-3: Stockpile Sampling Parameters for Disposal


Disposal Facility Requirements Stockpile Volume (yd3) per sample 400 yd3 # of increments per MULTI INCREMENT sample 30

The contaminated concrete will be disposed of at the following permitted site:

West Hawaii Sanitary Landfill 71-1111 Queen Ka’ahumanu Highway

Waikoloa Village, HI 96738 (808) 886-0940

In the event that contaminated concrete is determined by laboratory analysis to be a hazardous waste and consultation with the HDOT- HAR Hawaii District Manager and/or Construction Engineer, the waste will be transferred to a mainland landfill permitted in accordance with 40 Code of Federal Regulations (CFR) 270 or operating under interim status in accordance with 40 CFR 265 requirements or permitted by



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a state authorized by the EPA to administer the RCRA permit program. Contaminated concrete determined to be a hazardous waste will be handled in the same manner as soil outlined in Section 7.2.2.

8.2.2 Record Keeping

A log of all concrete that leaves the site and its final disposition will be maintained by the QEP. All waste manifests, truckload counts at source and receiving site, and weigh tickets will be included in a final report documenting the environmental oversight conducted during construction. The report will be submitted to the HDOH HEER Office at the conclusion of the project. In addition, whenever concrete is exported from the site, summary reports of the disposal records, including copies of documents, will be submitted to the HDOH HEER Office on a weekly or monthly basis, unless waived in writing by the HDOH HEER Office PM. For all concrete disposed of at a disposal facility a manifest with all required signatures will be submitted.


Section 9 Groundwater Management Plan

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Section 9 Groundwater Management Plan The purpose of the Groundwater Management Plan is to ensure that contaminated groundwater; if encountered, is properly handled and managed. The full extent of contaminated groundwater is unknown (e.g., contamination is not delineated); therefore, all groundwater at the site must be treated as potentially contaminated. The management of potentially contaminated groundwater will be overseen by an on-site QEP. Initial groundwater screening is shown in Table 9-1.

Table 9-1: Groundwater Screening


Estimated Depth to Groundwater at Site (ft bgs): 6.5 to 8.5

Proposed Maximum Excavation Depth:

Estimated Direction of Groundwater Flow: North towards Harbor

Will Contaminated Groundwater be Encountered During this Project? Yes No Unknown

Will Groundwater from this Site be Dewatered into the Sanitary Sewer System?

Will Groundwater from this Site be Dewatered into the Storm Sewer System?

Does the Contractor have a Dewatering Permit Issued by the County and/or HDOH Clean Water Branch?

Is Free Product Known or Suspected to be Present at the Site?

Groundwater contamination is known or suspected to present in the close proximity to the former UST excavation, as depicted in Figure 2-1.

Known or suspected groundwater COPCs include the following:

• TPH-GRO

• Toluene

• Ethylbenzene

• Total Xylenes

Proposed construction plans at the site will include dewatering at the following location(s): ________________________________ (depicted on Figure 8-1). However, proposed dewatering and other construction activities will not occur in the area(s) where contaminated groundwater is known or suspected to be present. All dewatering will occur hydro-geologically upgradient to the contaminated groundwater plume.

Therefore, dewatering by re-infiltration at the site may be conducted, provided re-infiltration pits are located away from areas of known or suspected soil contamination (as depicted on Figure 2-1). Dewatering into a sanitary sewer or storm sewer still requires a permit from the County (sanitary sewer) and/or HDOH Clean Water Branch (storm sewer). A copy of the Dewatering Permit and effluent sampling requirements



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is included as an attachment to this C-EHMP. The QEP must ensure compliance with all requirements of this permit.

{If there is no Dewatering Permit, simply state that current construction plans do not include dewatering into the sanitary or storm sewer.}

If plans change or new information indicates that groundwater at the site may be contaminated, this C-EHMP will be revised and re-submitted to the HEER Office for review and approval at least 90 days prior to conducting groundwater disturbing activities or as soon as the change has been identified.”

9.1 Groundwater Management Groundwater disturbed at the site will be continuously monitored and documented by a QEP with at least five years’ experience in environmental oversight associated with construction projects. Where contaminated groundwater may be encountered during excavation activities, appropriate response actions must be taken that conform with HDOH and EPA guidance, laws, and regulations. This includes proactive planning to ensure that workers have the appropriate level of PPE and that free product, sheen, and groundwater are managed properly if dewatering is conducted. Task associated with properly managing groundwater include the following:

• Where groundwater is encountered, a QEP shall provide field oversight to direct appropriate dewatering if conducted, manage disposal of groundwater if necessary, and provide health and safety guidance related to potential exposure of workers to COPCs.

• Workers who may come into contact with contaminated groundwater must wear the appropriate level of PPE.

• Workers who may come into contact with contaminated groundwater must have required training (at a minimum, 40-hour HAZWOPER certification and current 8-hour annual refresher training).

• If free product is encountered it must be recovered to the extent practicable, which is further discussed in Section 10.

• If contaminated groundwater is discovered at a previously unknown source or location, the HDOH HEER Office must be immediately notified of its discovery.

PLEASE ADD ANY OTHER SITE-SPECIFIC REQUIREMENTS, IF APPLICABLE. ANY PLANNED REMEDIATIAL MEASURES TO TREAT CONTAMINATED GROUNDWATER SHOULD BE ADDED HERE.

9.2 Dewatering (DELETE IF DEWATERING NOT ANTICIPATED) Contaminated groundwater may be dewatered from one excavation into another (or into re-infiltration trenches/pits on-site) as long as the following conditions are met:

• The excavations are within at least 200 ft of each other.



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• The receiving excavation is wider than it is deep, is less than 10 ft in depth, and does not meet the definition of an UIC well.

• The groundwater within both excavations is contaminated. Contaminated groundwater cannot be discharged into a clean excavation.

• Any free product present in the excavation has been removed (see Section 10). Under no circumstances can fee product be transferred from one excavation to another.

• The receiving excavation is greater than 150 meters from a surface water body, storm drain inlet, or sensitive environment (e.g. bird sanctuary, endangered species, beach, park).

Contaminated groundwater may also be dewatered into tanks or other temporary storage containers. Prior to reinfiltrating, the water temporarily stored in tanks or storage containers must be sampled and analyzed for the appropriate COPCs to determine the appropriate disposal or discharge options. If COPC concentrations are above HDOH EALs, water stored in tanks should be remediated prior to infiltration. The discharge of the water must be in compliance with the County of Hawaii, HDOH, and the EPA regulations and applicable permits. If it is desired that the water contained within the tanks or storage containers be re-infiltrated into a nearby excavation, the HDOH HEER Office and HDOH SHWB must be consulted to determine whether this is an appropriate option.

The location(s) of re-infiltration pits/trenches are depicted on Figure 8-1.

PLEASE ADD ANY OTHER SITE-SPECIFIC REQUIREMENTS, IF APPLICABLE. IF GROUNDWATER IS ANTICIPATED TO BE ENCOUNTERED, PLEASE INCLUDE METHODS OF PREVENTING CONTAMINATED GROUNDWATER FROM IMPACTING HUMAN HEALTH AND THE ENVIRONMENT. IF REINFILTRATING WATER NEED TO INCLUDE CHARACTERIZATION PROCEDURES PRIOR TO RE-INFILTRATION ON-SITE OR DISPOSAL. A SAMPLING AND ANALYSIS PLAN, IF APPLICABLE, SHOULD BE INCLUDED AS AN ATTACHMENT.

Dewatering into the sanitary sewer system or into the storm sewer is illegal, unless a Dewatering Permit is obtained from the County (sanitary sewer) and/or HDOH Clean Water Branch (CWB) (storm sewer). Dewatering into a storm sewer requires sampling the groundwater for additional chemicals that may not be required by your permit. Advance coordination with the HDOH HEER Office is required to ensure the appropriate screening criteria are met prior to discharge. IF A DEWATERING PERMIT HAS BEEN ACQUIRED FOR THE SITE, THEN THE REQUIREMENTS OF THE PERMIT SHOULD BE OUTLINED HERE, AND A COPY OF THE PERMIT AND EFFLUENT SAMPLING REQUIREMENTS SHOULD BE INCLUDED AS AN ATTACHMENT. THE QEP WILL BE RESPONSIBLE FOR CONDUCTING ALL SAMPLING REQUIRED BY THE PERMIT AND ENSURING COMPLIANCE WITH THE PERMIT.

9.3 Groundwater Disposal (DELETE IF GROUNDWATER IS ANTICIPATED)

The current construction plans do not anticipate disposal of any groundwater off-site. If plans change or new information indicates that off-site groundwater disposal will occur, then this C-EHMP will be revised and re-submitted to the HDOH HEER Office for review and approval at least 90 days prior to conducting groundwater disturbing activities or as soon as the change has been identified.



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(DELETE IF GROUNDWATER NOT ANTICIPATED)

Generated groundwater must be treated and disposed of if re-infiltration within 200 ft of the area of generation is impracticable or if COPC concentrations are above appropriate site-specific HDOH EALs. Should disposal become necessary, the groundwater should be stored on-site in the appropriate containers, characterized (e.g., using generator knowledge, field screening, and/or laboratory analysis) to determine the disposal options, and disposed of property at an HDOH permitted disposal facility. Table 9-2 outlines the analytes that should be analyzed for prior to disposal.

The QEP will be responsible for overseeing the containerization of the water and for collecting water samples. Water samples will be analyzed for the following COPCs prior to disposal.

Table 9-2: Groundwater Disposal Analysis


Chemicals to Analyze Analytical Method TPH-GRO SW-846 5030B/8015B TPH-DRO and ORO SW-846 3520C/8015B Ammonia SM 4500 NH3-C/G VOCs (including BTEX) SW-846 5030B/8260B PCBs SW-846 8082 PAHs SW-846 3520C/8270-SIM OCl Pesticides SW-846 8081A OPP Pesticides SW-846 8141 RCRA 8 Dissolved Metals (field filtered) SW-846 3050B/6020/7470A TCLP: Metals (Dissolved) EPA 1312 Ignitability EPA 1010A

A copy of the signed waste manifests must be maintained and included in the report submitted to the HDOH HEER Office following completion of the ground-disturbing activities. Table 9-3, indicates the disposal location for groundwater.

Table 9-3: Groundwater Disposal


Disposal Facility Name Facility Address Transporter Name Transporter Address


Section 10 Free Product Management Plan

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Section 10 Free Product Management Plan The purpose of the Free Product Management Plan is to ensure proper handling and management of free product that may be encountered. Free product is generally encountered floating on the groundwater or at the capillary fringe, and typically presents as either free-flowing, black or brown, viscous product; a thin layer of black or brown product; a discontinuous layer of product (e.g., spots or globules); or a petroleum hydrocarbon sheen. In areas where groundwater level is tidally influenced there may be increase in the amount of free product at either high or low tide. The free product screening is shown in Table 10-1.

Table 10-1: Free Product Screening


Question Yes No Unknown Is free product known or suspected to be present at the site? X Is the groundwater at the site tidally influenced? X Is groundwater at the site confined? X Will excavation activities at the site potentially encounter contaminated groundwater and free product?

(DELETE IF GROUNDWATER IS ANTICIPATED)

The current construction plans do not anticipate encountering groundwater at this site; therefore, a free product management plan is not needed for this C-EHMP. If plans change or new information indicates that groundwater will be impacted, then this C-EHMP will be revised and re-submitted to the HDOH HEER Office for review and approval at least 90 days prior to conducting groundwater disturbing activities or as soon as the change has been identified.

(DELETE IF GROUNDWATER NOT ANTICIPATED)

Free product is known or suspected to be present at the project site STATE LOCATIONS (as depicted on Figure 9-1). Known or suspected free product is composed of TPH-GRO, toluene, ethylbenzene, and total xylenes. Proposed construction plans at the site will include excavation to the groundwater table at STATE LOCATIONS (as depicted on Figure 9-1). However, proposed excavation(s) to the groundwater table will not occur in the area(s) where free product is known or suspected to be present. Therefore, a free product management plan is not necessary. If plans change or new information indicates that construction activities at the site may encounter free product, this C-EHMP will be revised and re-submitted to the HDOH HEER Office for review and approval at least 90 days prior to conducting groundwater disturbing activities or as soon as the change has been identified.

IF FREE PRODUCT IS NOT KNOWN OR SUSPECTED TO BE PRESENT AT THE SITE, AND GROUNDWATER WILL BE ENCOUNTERED DURING THIS PROJECT, PLEASE STATE THE FOLLOWING

Free product is known or suspected to be present at the project site STATE LOCATIONS (as depicted on Figure 9-1). Known or suspected free product is composed of TPH-GRO, toluene, ethylbenzene, and total



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xylenes. Proposed construction plans include the following activities that may encounter free product LIST ACTIVITIES HERE. Groundwater dewatering is anticipated to be conducted STATE LOCATIONS (as depicted on Figure 9-1). that are known or suspected to have free product.

Where free product is encountered during construction activities, the appropriate response actions must be taken that conform with HDOH and EPA guidance, laws, and regulations. The anticipated response actions are summarized below.

• The QEP with at least five years’ experience in environmental oversight associated with construction projects must provide environmental oversight whenever free product is encountered.

• The QEP should also provide health and safety guidance related to the potential exposure of the free product to the on-site workers. Additional health and safety guidance are included in the Site-Specific HASP prepared for this project, included in Attachment A.

• The QEP must assess flammability, explosivity and asphyxiation hazards by using a 4- gas monitor. Measure LEL, carbon monoxide, carbon dioxide, and hydrogen sulfide in the work zone.

• The free product must be recovered to extent practicable. This may involve the use of absorbent pads/booms, oil-water separators, and/or vacuum trucks to skim free product off the water table. The following methods will be used to recover free product at the project site: MODIFY OR ADD AS NEEDED.

o For sheens and small quantities of free product (less than ½ inch), absorbent pads will be placed on the surface of the water. Pads will be removed and replaced daily or as needed. Used pads will be disposed of in 55-gallon solid waste drums. The location of waste drum storage is depicted on Figure 9-2.

o Thicker layers of free product will be removed using a vacuum truck and transferred into an on-site oil-water separator (OWS). The location of the on-site OWS is depicted on Figure 5. Oil from the OWS will be transferred in 55-gallon drums to the disposal facility.

• Workers who may come into contact with free product must wear the appropriate level of PPE.

• Workers who may come into contact with free product must have required training (at a minimum, 40-hour HAZWOPER certification and current 8-hour annual refresher training).

• All oil-absorbent pads/booms, PPE, and other disposable equipment containing free product must be appropriately disposed of.

• Where dewatering is necessary and free product is floating on the water in the on-site infiltration pit(s), the product will be recovered to the extent practicable, and any absorbent material such as absorbent pads must be disposed of properly. Please note, that free product may not be moved from one excavation to another and engineering measures must be taken to prevent the transfer of free product during dewatering (e.g., placing the intake of the pump at a level below the free product layer – deeper than the planned deepest part of excavation/sump). The following engineering measures will be used to prevent the transfer of free product during dewatering at the project site: MODIFY OR ADD AS NEEDED.



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O LIST ENGINEERING METHODS AT FIRST DEWATERING LOCATION. (DEPICT LOCATION ON APPROPRIATE FIGURES)

O LIST ENGINEERING METHODS AT SECOND LOCATION, ETC. (DEPICT LOCATION ON APPROPRIATE FIGURES)

• If free product produces vapors that could adversely affect air quality, then the Vapor Management Plan (Section 12) should be followed. Please note, this may require that PPE be upgraded.




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Section 11 Stormwater Management Plan

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Section 11 Stormwater Management Plan The purpose of the Stormwater Management Plan is to provide proactive procedures to prevent stormwater runoff from coming into contact with contaminated media at the site. The actions listed below will minimize the potential for contaminating stormwater.

• Place contaminated soil on plastic sheeting in a lined, bermed area to prevent storm water from contacting contaminated soil.

• Open excavations should be backfilled as soon as practicable to prevent storm water and direct precipitation from entering the excavation. When possible, open excavations should be bermed to prevent storm water runoff from entering the excavation.

• In the event of heavy rain, ensure that all stockpiles of contaminated soil are covered with plastic sheeting and substantially secured.

• Regularly monitor the weather throughout the day for signs of approaching storms and/or heavy rains.

• All catch basins and drain inlets within the project area that have grates will be secured by installing Mirafi Geotextile fabric or approved equal between grating and grating frame.

• Temporary filter sock barrier will be installed surrounding the project area, see construction drawings included in Appendix A.

• Contractor shall comply with all Federal, State, and local laws, including but not limited to the following permits:

o NPDES Permit for Discharges of Stormwater Associated with Construction Activity from the HDOH (Notice of Intent B NOI Form C);

o Hawaii Coastal Zone Management Program Permit; o Department of the Army Permit (including special conditions as noted in permit); and o Office of Conservation and Coastal Lands (CCCL) Conservation District Use Application (CDUA).

PLEASE ADD ANY OTHER SITE-SPECIFIC REQUIREMENTS, IF APPLICABLE. IF THE STORM WATER MANAGEMENT ACTIONS ARE COVERED IN THE NPDES FORM C PERMIT- THE FORM SHOULD BE ATTACHED TO THIS PLAN.


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Section 12 Vapor Management Plan

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Section 12 Vapor Management Plan None of the COPCs identified or suspected to be present at the site contain significant volatile constituents that are anticipated to create a soil vapor hazard at the site during construction. Therefore, a vapor management plan is not needed for this C-EHMP. If new information indicates that hazardous soil vapors may be present, then this C-EHMP will be revised and re-submitted to the HDOH HEER Office for review and approval at least 90 days prior to conducting soil/groundwater disturbing activities or as soon as the change has been identified.


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Section 13 Spill or Release Response

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Section 13 Spill or Release Response Releases, should they occur, must be reported in accordance with HRS 128D and HAR 11-451. In addition to contractor releases, a release may include pre-existing contamination encountered during construction activities. If new contamination is discovered that is different from any known previously reported releases, the release must be reported as described in the abovementioned regulations.

Contractors are responsible for providing spill response materials including, but not limited to, containers, absorbent, shovels, and PPE. Spill response materials shall be available at all times in which hazardous wastes are being handled or transported. Spill response materials shall be compatible with the type of material being handled.

Except in an emergency, such as mechanical breakdown, all vehicle fueling, and maintenance shall be done in a designated area. A temporary berm shall be constructed around the area when runoff can cause problems.

13.1 Release Response If a release occurs, the following actions must be taken:

• Determine the identity of what was spilled, the source of the spill, the volume of the spill, the severity of the spill, and if immediate emergency response actions are necessary.

• Stop work if contaminant releases are extremely large and cannot be contained. If an imminent threat to human health or the environment exists, or if human or environmental receptors are impacted (e.g., human receptors falling ill or suffering sudden illness), notify the Count of Hawaii Fire Department by calling 9-1-1.

• If the spill is of a volatile, flammable, or combustible liquid or vapor, possible ignition sources should be eliminated, and workers will be directed to remain upwind. In addition, monitor for explosive vapors using an LEL meter.

• Stop work if an unusually large release or contaminated area is encountered unexpectedly or if there is any release of chemicals or hazards not covered by the plan.

• Stop work and take immediate emergency response actions if a worker or member of the general public is injured.

• Eliminate the source of the spill to the extent practicable (e.g., shutting off a valve, righting an overturned container), if it is safe to do so. Do not attempt to stop a release from an active fuel pipeline.

• Protect sensitive ecological receptors threatened by the spill.

PLEASE PROVIDE SITE-SPECIFIC INFORMATION AND RESPONSE ACTIONS.



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13.2 Release Reporting In the event of a release of a hazardous substance that causes imminent threat to human health or the environment, the first call should be to 9-1-1. Example of releases requiring a call to 911 include but are not limited to fuel or gas leaking from an active pipeline, an ammonia tank leak, or workers and/or the public becoming ill. The second call shall be the HDOT-HAR Engineer.

Table 13-1 lists the Emergency Spill Contact Information.

Table 13-1: Emergency Spill Contact Information


Contact Telephone Number Emergency (Medical Assistance, Fire Department, Police Department) If it is an emergency or life-threatening situation, 9-1-1 should be called first.

9-1-1

Harbor Emergency Dispatch Harbors should be notified immediately of all spills, leaks, and releases that occur to assist in response and notify other entities, if required.

(808) 587-2077 24/7

Harbors Deputy Director The Harbors Deputy Director should be notified immediately of all spills, leaks, and releases that occur for safety concerns.

(808) 587-3651 Derek Chow

Harbors Administrator The Harbors Administrator should be notified of all spills or releases that occur so that they can redirect harbors activities if necessary.

(808) 587-1928 Davis Yogi

Harbors Environmental Section Engineer The Environmental Section Engineer should be notified of all spills or releases that occur on the Harbor to assist in spill response as well as for record keeping purposes.

(808) 587-1962 Ying Zhang

NRC The QEP should call the NRC to report any spill of oil or hazardous materials of a reportable quantity. The NRC will notify the appropriate Federal On-Scene Coordinator (EPA) and various state agencies.

(800) 424-8802

LEPC The QEP should notify the LEPC of any reportable quantity spill. If calling after business hours, leave a message including name, phone number, time of spill, what was spilled, and quantity of spill.

(808) 936-8181

HDOH HEER Office (Oahu) The QEP should notify the HDOH HEER Office of any chemical spill of a reportable quantity.

(808) 586-4249 (808) 247-2191 (after

hours) HDOH CWB (Hilo) The QEP should notify the CWB of any spills of any chemical of a reportable quantity that reach a surface water body immediately by telephone. A written notification must also be submitted no later than thirty (30) days after the initial discovery of a release.

(808) 933-0401

U.S. Coast Guard, District 14 The U.S. Coast Guard should be notified of any quantity spill that reaches the ocean.

(800) 331-6176

County of Hawaii Civil Defense The QEP should notify the County of Hawaii Civil Defense of any reportable quantity spill.

(808) 935-3311



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Contact Telephone Number Clean Islands Council The QEP can contact the Clean Islands Council for additional help responding to a spill.

(808) 536-5814

Aloha Petroleum The QEP should notify Aloha Petroleum for an underground line damage to assist is spill response as well as for record keeping purposes.

(808) 935-0610

Chevron The QEP should notify Chevron for an underground line damage to assist is spill response as well as for record keeping purposes.

(808) 527-2707

HELCO The QEP should notify for an HELCO for an underground line damage to assist is spill response as well as for record keeping purposes

(808) 935-1171

Note: NRC = National Response Center LEPC = Local Emergency Planning Committee

The on-site personnel responsible for ensuring that the appropriate Release Notifications are conducted are listed below. Please note, that in the case of an emergency or imminent threat to the environment, any on-site personnel can contact 9-1-1. Table 13-2 lists the personnel responsible for Release Notifications.

Table 13-2: Personnel Responsible for Release Notifications


Name Company Title Phone Number



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Section 14 Worker Protection

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Section 14 Worker Protection A Site-Specific HASP must be prepared for the site in accordance with the appropriate occupational health and safety regulations. These regulations and requirements include but are not limited to the use of the appropriate level of PPE and appropriate personal hygiene steps associated with the identified COPCs as the site. A copy of the Site-Specific HASP is attached to this C-EHMP.

Administrative Controls for Protecting Workers from COPC hazards (further detailed in the HASP) include:

• 40-hour HAZWOPER training and current 8-hour refresher required for all workers who may come into contact with contaminated media.

• A discussion of COPC hazards that may be encountered will be discussed during daily tailgate safety meetings.

• A QEP with at least five years’ experience in environmental oversight associated with construction projects will be present when contaminated media will be moved or disturbed.

• The QEP will establish Exclusion Areas during excavation activities that may encounter hazardous or explosive soil vapors.

• PLEASE ADD ANY OTHER SITE-SPECIFIC REQUIREMENTS, IF APPLICABLE.

Engineering Controls for Protecting Workers from COPC hazards (further detailed in the HASP) include:

• The appropriate level of PPE shall be selected based on the potential hazards and COPCs associated with the individual construction tasks. The level of PPE may be upgraded or downgraded depending upon the tasks being conducted and the level of contact with the soil. At a minimum, Modified Level D PPE consisting of Tyvek suits, chemical-resistant boots, and nitrile gloves is to be required for workers directly exposed to contaminated soils within the trenches and excavations.

• Stanchions (delineators) and hazard tape shall be used to delineate exclusion areas where COPCs are present and access is restricted.

• Fans shall be placed around trenches and excavation pits where vapor hazards are present to increase air flow and redirect hazardous vapors away from workers.



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Section 15 Decontamination of Vehicles and Equipment

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Section 15 Equipment Decontamination Prior to excavation activities, the Contractor and the QEP must designate areas for decontamination activities. The QEP must also evaluate and establish decontamination procedures for personnel, tools, equipment and vehicles, prior to construction. Decontamination procedures for personnel and BMPs to limit direct exposure to COPCs is also discussed in the Site-Specific HASP that is attached to this C-EHMP.

15.1 Decontamination of Tools and Personnel Appropriate personal hygiene practices shall be adhered to at all times when handling potentially impacted soil. Washing facilities shall be made available on the jobsite to allow workers to wash their hands and avoid cross-contamination before eating, drinking, smoking, and/or heading home for the day.

After contact with the impacted soil, proper decontamination procedures shall be conducted including the removal, segregation, and disposal of PPE. Any used PPE shall be placed in plastic garbage bags, double bagged, and deposited in the site dumpster, or a municipal landfill.

Handheld and manual tools in direct contact with impacted soil must be decontaminated to remove any contaminated soil or water prior to handling unimpacted material that are assumed to be uncontaminated and before they are removed from the work area. The decontamination of tools must include the following:

• At the excavation location, physically remove soil adhering to the surface of the equipment using appropriate hand tools. Soil removed during this step should be placed back into the impacted area, excavation, or the appropriate stockpile following removal.

• Rinse off contaminated groundwater at the excavation location, allowing rinse water to drain back into the excavation or be collected in a container for proper disposal.

• While the tools are located at the excavation, water should be used to wash the surfaces of the tools that were exposed to impacted material. The water used to wash the exposed surfaces should be directed back to the impacted area or excavation and allowed to infiltrate.


During equipment decontamination, proper PPE shall be employed to minimize exposure to COPCs. Proper PPE should include Modified Level D PPE with nitrile gloves, rubber boots, waterproof Tyvek, and an appropriate face shield to protect against splash back during decontamination. The QEP shall designate Decontamination Areas for the donning and doffing of disposable PPE and for the cleaning of materials. Decontamination Areas are depicted on Figure 5.

15.2 Decontamination of Vehicles and Equipment Vehicle and equipment decontamination should occur following the use of vehicles and equipment (to include haul trucks and heavy machinery) in direct contact with impacted media. The equipment


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decontamination procedures are intended to describe methods for reducing and controlling the spread of site COPCs to unimpacted portions of the site or unimpacted materials, and to off-site locations.

Equipment and vehicles in direct contact with impacted media must be decontaminated to remove any contaminated media before they leave the work area. The decontamination of vehicles equipment must include the following:

• Mud shall be removed from the tires of all vehicles before leaving the construction area. Mud shall be removed from the tires of all vehicles before leaving the construction site. The gravel ingress/egress noted on the plans included in Appendix A shall be utilized for this purpose. Wastewater shall not be discharged into existing streams, waterways, or drainage systems such as gutters and catch basis unless treated to comply with Department of Health water pollution regulations.

• Truck hauling debris shall be covered as required by Public Utilities Commission (PUC) regulations. Trucks hauling fine materials shall be covered.

• Except for rinsing of the hopper and delivery chute, and for wheel washing where required, concrete trucks shall not be cleaned on the job site. Wash water from concrete trucks shall be contained and shall not be permitted to enter the Harbor.


During equipment decontamination, proper PPE shall be employed to minimize exposure to COPCs. Proper PPE may include Modified Level D PPE with nitrile gloves, rubber boots, waterproof Tyvek, and an appropriate face shield to protect against splash back during decontamination. The Contractor and QEP shall designate Decontamination Areas for the decontamination of vehicles and heavy machinery. Decontamination Areas are depicted on Figure 5.


Section 16 Record Keeping and Reporting

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Section 16 Record Keeping and Reporting Detailed records of all environmental activities conducted during construction should be kept. These records may include air monitoring results, stockpile sampling, soil segregation, soil and/or groundwater sampling methodologies and results, dewatering activities, free product recovery, vapor suppression, soil disposal or reuse, and any other environmental activities conducted in association with construction activities.

In addition to maintaining these records, within 30 days of the completion of ground-disturbing activities a removal action report summarizing the environmental activities conducted during construction is to be submitted to HDOH HEER Office for review and comment. Guidance for preparation of a removal action report can be found in Section 18 of the HDOH HEER Office TGM (HDOH HEER Office 2008 and updates). The report should also include copies of all disposal receipts, truck logs, and laboratory analytical results, as well as a map illustrating the approximate GPS location(s) where any contaminated soil was encountered and/or reused on-site.


If contaminated media is left on-site following the construction activity, the property owner must complete an EHE and prepare an EHMP to manage the contamination in the long-term. If the site already has an EHMP, then the EHMP must be updated following redevelopment to incorporate changes to the site. EHEs and EHMPs must be submitted to the HDOH HEER Office for review and approval following the completion of construction activities detailed in this C-EHMP.


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Section 17 Harbor Special Provisions

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17.1 Limitation of Operations 17.1.1 General Operations

• The Contractor shall give formal written notice to the U.S. District Engineer, Fort Shafter and to the HDOT-HAR District Manager and the Harbors Construction Engineer, approximately two (2) weeks in advance, whenever equipment or other obstructions will be placed in navigable waters that will prohibit use of other Harbor areas and shall give immediate notice when such obstructions have been removed. The Contractor shall conform to all Harbor regulations affecting his operations.

• All work shall be coordinated with the HDOT-HAR District Manager and the Construction Engineer. Four (4) weeks before work is started, the Contractor shall submit a work schedule to the Director for review.

• Arrangement for work areas within the Harbor area shall be made with the District Manager and shall conform to all Harbor regulations affecting his operations.

• Contractor shall conduct the work in a manner that will not interrupt, or otherwise interfere with full operations of the adjoining existing facilities.

• Contractor shall use all proper precautions and methods of procedure in his operations to ensure that no debris or other deleterious materials be allowed to fall, flow, or otherwise enter the water. Any oil spills shall be immediately removed to the satisfaction of the HDOT-HAR Director.

• Contractor working hours are limited to 6 a.m. to 8 p.m.

• Contractors shall provide, erect, and maintain warning signs, lights, barricades, fences, and/or all other means as necessary to prevent unauthorized persons and the general public from wandering into areas where they may suffer injury or create a hazard to the construction operations or the work.

• Absolutely under no circumstances shall unprescribed, controlled substances, alcohol, or firearms of any type be present or carried in vehicles by Contractor's personnel. Any of these items found in the possession of any person shall be grounds for immediate removal from the jobsite and/or dismissal of that person from the job.

• A grading permit is not required for this project. This project is exempt from permit requirements from the County of Hawaii.

• Contractors are prohibited by 10 U.S.C. 2692 from storing Contractor owned hazardous or solid waste on-site for any length of time. The Contractor is responsible for ensuring compliance with all Federal, state, and local hazardous waste laws and regulations and shall verify those requirements when preparing reports, waste shipment records, hazardous waste manifests, or other documents. Identify hazardous wastes using criteria set forth in 40 CFR 261 or all applicable state and local laws, and regulations. When accumulating hazardous waste on-site, comply with generator requirements in 40 CFR 262 and all applicable state or local laws and regulations. On-



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site accumulation times shall be restricted to applicable periods referenced in 40 CFR 262, and all applicable state or local laws, and regulations.

• Contractor shall not dispose of any material into Harbor waters including, but not limited to, fuels, oils, bitumen, calcium chloride, acids, construction debris, or other harmful or hazardous materials. The Contractor shall not dispose of any material into Harbor waters which will result in an increase of turbidity. It is the responsibility of the Contractor to comply with all applicable Federal, State and County laws concerning pollution of water resources.

17.1.2 Utilities

• The Contractor shall provide for the protection of all utilities from damages in areas to be traversed by his vehicles and equipment. If required, buried cables and utility lines shall be protected by mounding earth over the cables or by any other method approved by the HDOT-HAR Engineer.

• The Contractor shall notify representative of the owner, agencies, and other affected organizations at least 48 hours prior to working in any area containing the facilities of these organizations. Failure to notify the owning organization will prevent authorization to work in a specific area.

• Contractors shall have available on 24-hour call sufficient specialty contractors to repair any damage to existing facilities that might occur as a result of construction operations regardless of when the damage might occur.

17.1.3 Marking of Hazardous Areas

• Bull-rails must be used along unprotected waterside edges of aprons and bulkheads, except where vehicles are prohibited.

• Contractors shall provide, erect, and maintain warning signs, lights, barricades, fences, and/or all other means as necessary to prevent unauthorized persons and the general public from wandering into areas where they may suffer injury or create a hazard to the construction operations or the work.

17.1.4 Storage of Equipment and Materials

• Contractors shall not store equipment or park vehicles in a way that obstructs fire lanes nor blocks fire exits from office structures, equipment buildings, or fenced areas.

• Arrangement for storage areas within the Harbor area shall be made with the District Manager. The Contractor shall be responsible for maintaining the work and storage areas and, if necessary, shall restore these areas to their original condition to the satisfaction of the HDOT-HAR in the event any damage results from his operations.

• Contractor shall maintain complete control of the movement of all equipment and material on the surface of the water. No loose floating equipment will be permitted.



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• At the end of each working shift, all the Contractor’s equipment shall be withdrawn to an area designated by the HDOT-HAR Engineer.

• Dangerous parts of equipment shall be indicated by safety colors or warning signs. Extreme care shall be exercised in operating mobile or moving equipment.

17.1.5 Archaeological Features

• Any apparent historical or archaeological features such as petroglyphs, burial sites, and artifacts discovered or unearthed during the performance of the work shall immediately be brought to the attention of the HDOT-HAR Engineer and all work that would damage or destroy these features shall be discontinued. The HDOT-HAR Engineer will decide, after proper investigation, to salvage or abandon such artifacts.

17.1.6 Operations of Contractor’s Motor Vehicle and Personnel in Harbors Operations and Movement Areas

Contractor shall conform with all HDOT-HAR rules and regulations pertaining to access and operation in the Harbor, including but not limited to the followings:

• Motor Vehicles in Harbor

o For safety reasons, the operation of motor vehicles in the Harbor must conform with all applicable State Harbors rules and regulations.

o Contractors must have a Transportation Worker Identification Credential (TWIC) as required by the Maritime Transportation Security Act for workers who need access to secure areas of the nation’s maritime facilities and applicable Motor Vehicle Operator’s License.

• Right of Rejection or Revocation

o HDOT-HAR reserves the right to withhold, deny, or revoke any licenses or permits to any individual or organization who fails to meet the prescribed or required access area clearance criteria to include background investigation information, or fails to observe or comply with established rules, regulations, and directives.



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Section 18 References

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Section 18 References Airboxlab US. 2020. Long Term Effects of Volatile Organic Compounds (Benzene, Formaldehyde..).

Accessed February 25, 2020. https://foobot.io/guides/long-term-effects-of-volatile-organic-compounds.php.

Agency for Toxic Substances & Disease Registry [ATSDR]. 2019. Toxic Substances Portal. September 26. Accessed February 25, 2020. https://www.atsdr.cdc.gov/ToxProfiles.

Element Environmental, LLC [E2]. 2019. "Phase I Environmental Site Assessment, Various Task Locations at Hilo Harbor, State of Hawaii Department of Transportation Harbors Division, 218060-00 HDOT-HAR Civil Phase 4 (Statewide) Job H.C. 90109, Hilo, Hawaii." Prepared for Group 70 International, Inc., April 5.

Hawaiian Asphalt. 2005. "Release Response Assessment, Removal, Mitigation, and Prevention of a Substantial Threat of Oil Discharge, Hawaiian Asphalt Facility, 794 Kalanianaole Avenue, Hilo, Hawaii 96720, HDOH Facility ID No. 9-600714, TMK No. (3) 2-4-010:043." Prepared by Environmental Science International, November 8.

Mink, John F.; Lau, L. Stephen;. 1993. "Technical Report No. 191, Aquifer Identification and Classification for the Island of Hawaii: Groundwater Protection Strategy for Hawaii." Water Resources Research Center, University of Hawaii at Manoa, May.

NIOSH. 1985. Occupational Safety and Health Guidance Manual for Hazardous Waste Site Activities. October. Accessed October 27, 2018. https://www.cdc.gov/niosh/docs/85-115/default.html.

State of Hawaii. n.d. "HRS 128D, Hawaii Revised statutes, Hawaii Environmental Response Law (HERL), Chapter 128D." https://www.capitol.hawaii.gov/hrscurrent.

—. 1980 and updates. Hawaii Revised Statutes, Hawaii Environmental Response Law, Chapter 128D Environmental Response Law. https://www.capitol.hawaii.gov/hrscurrent/Vol03_Ch0121-0200D/HRS0128D/.

State of Hawaii Department of Health [HDOH]. 1995. "HAR 11-451, Hawaii Administrative Rules, Title 11, Chapter 451, State Contingency Plan (SCP)." August 2.

—. 2001. "HAR 11-59, Hawaii Administrative Rules, Title 11, Chapter 59, Ambient Air Quality Standard." September 15.

—. 2014. "HAR 11-60.1, Hawaii Administrative Rules, Title 11, Chapter 60.1, Air Pollution Control." June 30.

—. 2019. Hawaii Administrative Rules. Accessed 15 2019, May. https://ltgov.hawaii.gov/the-office/administrative-rules/.


Section 18 References

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State of Hawaii Department of Health [HDOH] Hazard Evaluation and Emergency Response HEER Office. 2007. "Long-Term Management of Petroleum-Contaminated Soil and Groundwater." June 27.

—. 2008 and updates. "Technical Guidance Manual for the Implementation of the Hawaii State Contingency Plan." http://www.hawaiidoh.org/tgm.aspx.

—. 2011. "Technical Guidance Manual Notes: Decision Unit and Multi-increment Sample Investigations." March 25.

—. 2017a. "Evaluation of Environmental Hazards at Sites with Contaminated Soil and Groundwater, Volume 1: User's Guide, Hawaii Edition." State of Hawaii Department of Health, Hazard Evaluation and Emergency Response Office, Fall.

—. 2017b. "Guidance for Soil Stockpile Characterization and Evaluation of Imported and Exported Fill Material." October.

State of Hawaii Department of Transportation Harbors Division [HDOT-HAR]. 2011. "Final Environmental Impact Statement for the Hawaii Commercial Harbors 2020 Master Plan, Island of Hawaii, Hawaii." Prepared by R.M. Towill Corporation, July.

—. 2019. "Specifications and Proposal for Demolition of Quonset Hut and Pier 4 Pavement Remediation at Hilo Harbor, Hawaii, Job No.: H.C. 50113.1." January 4.

United States Department of Agriculure [USDA] Natural Resource Conservation Service [NRCS]. 2019. "Web Soil Survey." United States Department of Agriculture Natural Resources Conservation Service. May 10. Accessed 2019. http://websoilsurvey.nrcs.usda.gov.

United States Environmental Protection Agency [EPA]. n.d. "29 CFR Title 40 Part 1910, Occupational Safety and Health Standards - General Industry." https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910TableofContents.

—. 2013. Recognition and Management of Pesticide Poisonings: Sixth Edition, Chaper 5 Organophosphate Insecticides. Accessed February 25, 2020. https://www.epa.gov/sites/production/files/documents/rmpp_6thed_ch5_organophosphates.pdf.

Walker Consultants, Ltd. 1994. "Underground Storage Tank Closure Report at HT&T Company, Inc., Pier 1, Hilo Harbor, Hilo, Hawaii Island Portion, TMK No. 2-1-009:038, HDOH Facility ID 9-600823, HDOH Leak ID 940188." Prepared for D.L. Downing, General Contractors, Inc.,, November.

Appendix A

Construction Plans and Drawings

Appendix B

Site-Specific Health and Safety Plan

Appendix C

Best Management Plans

Appendix D

Sampling and Analysis Plan

Appendix E

Construction Material Documents

Appendix F

Soil Acceptance Agreement

Appendix G

Soil Tracking Log

Appendix H

Permits