Highland Drain - Stream Bank Stabilization Design-Build Project Kosciusko County, Indiana

Little Chapman Lake

Prepared for:

Chapman Lake Foundation, Inc. P.O. Box 776

W a r s a w , Indiana 4 6 5 8 1

a n d t h e

Lake and River Enhancement Program Indiana D e p a r t m e n t o f N a t u r a l Resources

Divis ion o f Fish a n d W i l d l i f e

1353 G o v e r n o r s Drive

C o l u m b i a City, Indiana 4 6 7 2 5

Prepared by:

S&L Environmental Group, Inc. 1 5 5 0 4 CR 4 2

Goshen, Indiana 4 6 5 2 8

TABLE OF CONTENTS Page

1.0 Executive Summary 1

2.0 Project Purpose 1 2.1 Objective 1 2.2 Accomplishment 1

3.0 Project Description 2 3.1 General Location 2 3.2 Project Site Location 2 3.3 Project Interest 2

4.0 Project Design 2 4.1 Removal and Disposal of tile, culverts, concrete,asphalt. 2 4.2 Reshape stream banks and install stone protection 2 4.3 Stabilize channel bottom with Stone Keyways 2 4.4 Erosion Control Measures 2 4.5 Improvements to Driveway and parking Area 2

5.0 Project Logistics 2 5.1 Permit Requirements 2 5.2 Construction Timing 3 5.3 Project Contractor 3

6.0 Future Project Inspection and Maintenance 3

7.0 Estimated Load Reduction 3

Figure 1. General Location Map

Appendices A "As Build" Engineering Plans B Engineering Calculations and Specifications C Photographs D Permits and Correspondence E Estimated Load Reductions

Page i

Highland Drain - Stream Bank Stabilization Design-Build Project

Kosciusko County, Indiana

1.0 Executive Summary The eroding stream banks and channel bottom, located 300 LF. upstream from the Highland Drain outlet into Little Chapman Lake, has historically been a problem area. Numerous attempts have been made by property owners to eliminate the erosion and delivery of sediment into the lake. However, each attempt to curb the erosion has failed. In 2007 a delta of sediment was removed from the lake by dredging. Since the dredging in 2007 a new delta has formed. Adjacent homes, drives and parking lots were being threatened by the bank erosion.

In 2013 the Chapman Lake Foundation Inc. submitted a design-build application to the Lake and River Enhancement Program for funding assistance to design and implement erosion control measures on the lower 300 L.F. of the Drain. The application was funded and the Foundation selected S&L Environmental Group, Inc as the design-build contractor.

2.0 Project Purpose 2.1 Objective - To eliminate stream bank and channel erosion and thus

the delivery of sediment to the lake. Reduce potential damage to adjacent property owners. Construct a channel to carry the flow from the 36" road culvert when flowing full capacity. Provide some bank protection when the road overflows from large storm events.

2.2 Accomplishment - Channel capacity constructed to carry the flow of the 36" road culvert when running full. Banks stabilized with stone to withstand the velocity of flow through the channel. Five channel keyways installed to reduce the potential of significant erosion.

Page 1

Stone placed to the top of banks to provide some protection when the road overtops during large storm events. Soil mixed in with stone and seeded to native grasses and forbs. 150 Native grass and forbs plugs planted to provide quicker cover.

3.0 Project Description

3.1 General Location - The project is located in Plain Township, T-33N, R-6E, Section 35, Kosciusko County, Indiana on Little Chapman Lake (Figure 1).

3.2 Project Site Location - The project site is approximately 500 L.F. north of the intersection of CR 250 North and Chapman Lake Drive on the west side.

3.3 Project Interest - A coordinated effort between the Chapman Lake Foundation, affected landowners and the Lake and River Enhancement Program made the project a reality. These individuals, agencies and organizations were involved and participated in the review of the design plans and construction activities. On-site and off-site meetings were held before finalizing the design plans.

4.0 Project Design

The following "Job Task" were completed per the design plans and "As Builds" located in Appendix of this report. Photographs of each of the "Job Task" can be found in Appendix C.

4.1 Removal and Disposal of tile, culverts, concrete and asphalt 4.2 Reshape stream banks and install stone protection 4.3 Stabilize channel bottom with Kevwavs 4.4 Erosion Control measures - vegetative establishment of disturbed

lawn areas and planting of native grasses and forbs. 4.5 Improvements to driveway and parking areas - stone resurfacing

5.0 Project Logistics 5.1 Permit Requirements - An "Early Environmental Review" was held

onsite with representatives of DNR, ACOE and IDEM participating.

Page 2

General Project Location - Figure 1

It was determined a DNR permit was not required since the watershed was less than one square mile. IDEM and ACOE required a "Regional General Permit". 5.2 Construction Timing - Construction began on June 23, 2014 and

was completed on July 8, 2014. Construction activities were scheduled during the summer months when ditch flow is typically low.

5.3 Project Contractor - S&L Environmental Group, Inc was the low bidder for the Design-Build project and determined to be qualified to design and oversee the construction activities.

6.0 Future Project Inspection and Maintenance

All post-construction inspections will be completed by adjacent landowners and representatives of the Chapman Lake Foundation, Inc. The structural and vegetative improvements should be inspected, as a minimum, twice a year - spring and fall. During the first year of establishment it is recommended to complete an inspection after each significant storm event. Any shifting or movement of stone should be addressed immediately.

7.0 Estimated Load Reductions

The EPA Region 5 Load Reduction Program was used to estimate the load reductions for sediment, phosphorous and nitrogen. Results can be found in Appendix E.

Page 3

A p p e n d i x " A "

"As Build" Engineering Plans

STA. 4+30 ELEVEVATION FROM PREVIOUS PERMIT

STA. 5+00 END OF DRAIN - BEGIN LAKE

STA. 5+64 WALKING BRIDGE

STA. 6+64 ELEVATION 829.1 - CULVERT OUTLET

STA. 7+04 ELEVATION 829.9 - CULVERT INLET

STA. 3+00 WEST EDGE OF ROAD

fit B*n tfoTE'. /)fl?/l.iV»m B»tf~°m w ^ M ?^>ft

$L STATION 5+00 (OUTLET INTO LAKE)

^—ELEV. 829.7 y—ELEV. 829.5

ELEV. 829.7

Py""̂ ELEV. 830.9 -

8 3 0

/ / 8 2 9

\ / /

EXISTING O SLOPE 1:1 . (SOUTH BANK)

I PROPOSED PROPOSED / / EXISTING EXISTING O SLOPE 1:1 . (SOUTH BANK)

\SLOPE 1.5:1 SLOPE 1.5.1 / / SLOPE 1.3:1 EXISTING O SLOPE 1:1 . (SOUTH BANK) \ / (NORTH BANK)

/ 8 2 8

DITCH BOTTOM -ELEV. 826.5

/ / / / / /

" — - — NORMAL LAKE LEVEL ELEV. 827.75

8 2 7

DITCH BOTTOM -ELEV. 826.6

-12 -9

DITCH BOTTOM ElEV. 826.7

9 12 15 -18 - 1 5

ELEV. 826.6

-12 -9 6 -3 0 3 6

DITCH BOTTOM ElEV. 826.7

9 12 15 1 8 21 8 2 6

STATION 5+64 (WALK BRIDGE)

STATION 6+00

r ~ PROPOSED I SLOPE 1.5:1

5* | [SOUTH BANK)

DITCH BOTTOM ELEV. 828.8

DITCH BOTTOM ELEV. 831.6

- E L E V . 831.4

h

EXISTING f PROPOSED £,\*'t*' SLOPE 1.4:1 / SLOPE 1.5:1 |

/(NORTH BANK)

DITCH BOTTOM ELEV. 828.7

DITCH BOTTOM ELEV. 828.6

- 1 8 - 1 5 -12 12 15

ELEV. 831.2 —v

s—ELEV. 830.8 — ELEV. 830.7 f J-f l̂»tf*7 EXISTING i /+ — , • Tr\

SLOPE 1.2:1 / / . K »\(NORTH BANK)/ / / • ' ELEV. 831.4 - >

831 — ELEV. 830.7 f J-f l̂»tf*7

EXISTING i /+ — , • Tr\

SLOPE 1.2:1 / / . K »\(NORTH BANK)/ / / • ' ELEV. 831.4 - >

m \\

— ELEV. 830.7 f J-f l̂»tf*7 EXISTING i /+ — , • Tr\

SLOPE 1.2:1 / / . K »\(NORTH BANK)/ / / • ' ELEV. 831.4 - >

8 3 0

51'f̂PROPOSErA. 1 SLOPE 1.5:iy

S L 0 ? E S ™ 1 <'A™ \H BANK) //V510" 1 5:1

\/ / 8 2 9

S L 0 ? E S ™ 1 <'A™ \H BANK) //V510" 1 5:1

\/ / DITCH BOTTOM -

ELEV. 827.8 8 2 8

18 - 1 5

DITCH BOTTOM -ELEV. 827.7 (NORMAL LAKE LEVEL)

12 9 -6 -3

DITCH BOTTOM ELEV. 827 9

0 3 6 9 12 1 5 1 8 21 8 2 7

S28 .21 52Z_

STATION 7+50

ELEV. 835.3

—.RAVEL PARKING AREA / / / -RAKE STONE BACK

' ' PROPOSED SLOPE 1.5:1

|TH BANK)

DITCH BOTTOM ELEV. 831.8

-12 -9

DITCH BOTTOM ELEV. 831.7

STATION 3+55 (CENTERLINE CHAPMAN LAKE DRIVE)

ELEV. 842.1

ELEV. 841.0

8 3 5

- ELEV. 833.8 (INLET OF ROAD CULVERT - 36")

-50 -40 -30 - 2 0 1 0 0 10 2 0 3 0 40 5 0 60 70 80 8 3 3

HIGHLAND DRAIN LITTLE CHAPMAN LAKE

KOSCIUSKO COUNTY, INDIANA

DESIGN BV: wss REVISION N U M B E R

REVISION DATE

PROJECT NO.: 14040101 PAGE NO. HIGHLAND DRAIN

LITTLE CHAPMAN LAKE KOSCIUSKO COUNTY, INDIANA

CROSS SECTIONS DRAWN BY: JWS DATE: 4 .18.2014 5 •VlfOTVtf f. .' • P tl • ' —

HIGHLAND DRAIN LITTLE CHAPMAN LAKE

KOSCIUSKO COUNTY, INDIANA CROSS SECTIONS

C H E C K E D BY: wss HORIZONTAL SCALE:

1 5 5 0 4 COUNTY ROAD 42 GOSHEN, INDIANA 46528

HIGHLAND DRAIN LITTLE CHAPMAN LAKE

KOSCIUSKO COUNTY, INDIANA A P P R O V E D BY: wss VERTICAL SCALE:

to 3*tlh fa- S f l * s r* 6 t & 0

VELOCITY DETERMINATION FOR ROCK RIPRAP OUTLETS

Trapezoidal Cross Section d50 Vmax

Bottom Width= 3 ft. 3" 5.1 Side Slope= 1.8 :1 4" 5.8

Depth= 2.4 ft. 5" 6.3 d50= 10 6" 6.8

Bottom Slope= 0.013 ft/ft. 7" 7.3 "nM= 0.048 8" 7.8

Area= 17.568 s.f. 9" 8.3 Wetted Perimeter= 12.9 ft. 10" 8.7 Hydraulic Radius= 1.36 ft. 11" 9.1

12" 9.5 Velocity=| 4.3|fps

Critical Velocity3 7JLfelote-velocities greater than 70% of critical ve Capacity= ( 7 6 cfs^) 2.H' 9y>fk F/*c<J

MUK Cafoefff iZlcfa at Baik Fuff

Parabolic Cross Section

Top Width= 30 ft. Depth= 0.5943 ft.

Bottom Slope= 0.10 ft./ft. d50= 8 inches "n"= 0.071

Area= 11.9 s.f. Wetted Perimeter= 30.031 ft. Hydraulic Radiius= 0.40 ft.

Critical Velocity= Velocity3

3.57 fps Critical Velocity= Velocity3 3.57| fps

Capacity3 42 cfs

VELOCITY DETERMINATION FOR ROCK RIPRAP OUTLETS

Trapezoidal Cross Section

Bottom Width= Side Slope=

Depth= d50=

Bottom Slope= "n"=

Area= Wetted Perimeter= Hydraulic Radius=

3 ft. 1.8 :1 2.2 ft. 10

0.019 ft/ft. 0.049

15.312 s.f. 12.1 ft. 1.27 ft.

Velocity=| 4li|fps Critical Velocity=

Capacity=

d50 Vmax 3" 5.1 4" 5.8 5" 6.3 6" 6.8 7" 7.3 8" 7.8 9" 8.3 10" 8.7 11" 9.1 12" 9.5

Parabolic Cross Section

e^l^ote-velocities greater than 70% of critical ve 74 cfT> a f Zi-x ' fUu, Dytfs

Top Width= 30 ft. Depth= 0.5943 ft.

Bottom Slope= 0.10 ft/ft. d50= 8 inches "n"= 0.071

Area= 11.9 s.f. Wetted Perimeter= Hydraulic Radius=

Critical Velocity=

30.031 ft. 0.40 ft. 3.57 fps

30.0314

Velocity=| 3.57|fps

Capacity= 42 cfs

VELOCITY DETERMINATION FOR ROCK RIPRAP OUTLETS

Trapezoidal Cross Section d50 Vmax

Bottom Width= 3 ft. 3" 5.1 Side Slope= 1.7 :1 4" 5.8

Depth= 2.2 ft. 5" 6.3 d50= 10 6" 6.8

Bottom Slope= 0.024 ft/ft. 7" 7.3 "n"= 0.049 8" 7.8

Area= 14.828 s.f. 9" 8.3 Wetted Perimeter= 11.7 ft. 10" 8.7 Hydraulic Radius= 1.27 ft. 11" 9.1

12" 9.5

Critical Velocity= Capacity=

6;7_fcl̂ te-velocities greater than 70% of critical ve 81 cfs^) € f z.Z' r/ous Pjofk

Parabolic Cross Section

Top Width= Depth=

Bottom Slope= d50= 'n"=

Area= Wetted Perimeter= Hydraulic Radius=

Critical Velocity= Velocity3

30 ft. 0.5943 ft.

0.10 ft/ft. 8 inches

0.071 11.9 s.f.

30.031 ft. 0.40 ft. 3.57 fps 3.57|fps

30.0314

Capacity3 42 cfs

Appendix "B"

Engineering Calculations & Specifications

/) Chapman Lak'C Road Culvert Canity a f fo/J F/ekf

6,8 '&*d &v BW.Sio 7

Opacify 9 6 cfe (J^t^ 9r&*^ "f)pe FUutCl&J''-/{/lC6 fitaiitces^

/ja»db*ek 7£&fe; figure 6 -*3~f ^ 6~9/) d

i) flkterlJl fi&^utft:. vne^Jtb

C) Sit&n^!-'

STi

3 ft«sy iAk2y$

j> /i*tl>>*- s**d if Jigs

VELOCITY DETERMINATION FOR ROCK RIPRAP OUTLETS

Trapezoidal Cross Section d50 Vmax

Bottom Width= 3 ft. 3" 5.1 Side Slope= 1.5 :1 4" 5.8

Depth= 2.5 ft. 5" 6.3 d50= 12 inches 6" 6.8

Bottom Slope= 0.025 ft/ft. 7" 7.3 "n"= 0.052 8" 7.8

Area= 16.875 s.f. 9" 8.3 Wetted Perimeter* 12.0 ft. 10" 8.7 Hydraulic Radius= 1.40 ft. 11" 9.1

12" 9.5 Velocity* 5.7 fps

Critical Velocity* 7.2 Note-velocities greater than 70% of critical ve Capacity* 96 cfs ot{

Parabolic Cross Section

>p Width )epth

Bottom

"n Area*

Wetted Perimeter*, Hydraulic Radiu

30.0314

Station Site % 7t<%) Vc^ts

VELOCITY DETERMINATION FOR ROCK RIPRAP OUTLETS

Trapezoidal Cross Section

Velocity* Critical Velocity*

Capacity*

T2]fps

d50 Vmax Bottom Width* 3 ft. 3" 5.1

Side Slope* 1.5 :1 4" 5.8 Depth* 2.8 ft. 5" 6.3

d50= 9 inches 6" 6.8 Bottom Slope* 0.014 ft/ft. 7" 7.3

"n"= 0.045 8" 7.8 Area* 20.16 s.f. 9" 8.3

Wetted Perimeter* 13.1 ft. 10" 8.7 Hydraulic Radius* 1.54 ft. 11" 9.1

12" 9.5

7.5 Note-velocities greater than 70% of critical ve 105 cfs

Parabolic Cross Section

Top Width= Depth=

n Slope= d50=

/a-Wetted Perime^ Hydraulic Radius=

Critical Velocity5

Velocity5

$0 ft. 0^943 ft.

0.10 ft/ft. 8 inches

0.071 11.9 s.f.

30.031 ft. 0.40 ft. 3.57 fps 3v57|fps

30.0314

Capacity*

EROSION CONTROL AND PLANTING

Permanent Seeding - All disturbed areas flatter than 3H:1V were fertilized, seeded and mulched. These areas consisted of disturbed access points and landowners lawns within the work limits. Disturbed areas with slopes steeper than 3H:1V were fertilized (cool season grasses only), seeded and protected with SC150BN erosion control blankets. Seeding specifications and methods were completed as provided in the design plans. Topsoil was brought in for topdressing some of the disturbed areas prior to seeding.

Permanent Seeding Mixtures and Rates Applied

Native Seed Mixture for Bank Slopes - Over rock riprap.

Big Blue Stem Switch Grass Prairie Cord Grass B.L Purple Cone Flower New England Aster Black Eyed Susan

16 PLS oz/ac 6.0 PLS oz/ac 2.1 PLS oz/ac 3.3 PLS oz/ac 0.3 PLS oz/ac 2.4 PLS oz/ac

Brown Fox Sedge Indian Grass Virginia Wild Rye Yellow Cone Flower Cup Plant Compass Plant

3.5 PLS oz/ac 15 PLS oz/ac 30 PLS oz/ac 4.3 PLS oz/ac 5.2 PLS oz/ac 1.7 PLS oz/ac

Additional mix (6.0 PLS oz/ac) of Blue Joint Grass, Common Rush, Bottlebrush Sedge and Fowl Mana Grass.

Annual Cover Crop

Common Oats Annual Rye

360 PLS oz/ac 100 PLS oz/ac

Native Plugs Placed Within Riprap

Broad-Leaved Purple Coneflower Prairie Blazing Star Yellow Coneflower

50 50 50

Cool Season Grass Mixture for Lawn and Access Repair

Sun and Shade Lawn Mix - Approximate Percentages at 5 lbs/1000 sq. ft.

Creeping Red Fescue 35% Perennial Ryegrass 25% Chewings Fescue 20% Kentucky Bluegrass 20%

CONSTRUCTION MATERIALS

7 oz - Nonwoven Geotextile Fablic - Class 1

D50-10-11" Limestone Riprap

Appendix "C

Photographs

Appendix "D"

Permits and Correspond

THIS IS NOT A PERMIT State of Indiana

DEPARTMENT OF NATURAL RESOURCES Division of Fish and Wildlife

Early Coordination/Environmental Assessment DNR #: ER-17435 Request Received: February 12,2014

Requestor: S&L environmental Group, Inc. Wayne Stanger 15504 County Road 42 Goshen, IN 46528

Project:

County/Site info:

Regulatory Assessment:

Bank (both sides) and channel stabilization along 300' of a tributary of Little Chapman Lake (Highland Drain), and removal of about 50-75 cubic yards of sediment at the outlet of the tributary; on-site meeting request Kosciusko The Indiana Department of Natural Resources has reviewed the above referenced project per your request. Our agency offers the following comments for your information and in accordance with the National Environmental Policy Act of 1969.

If our agency has regulatory jurisdiction over the project, the recommendations contained in this letter may become requirements of any permit issued. If we do not have permitting authority, all recommendations are voluntary. This proposal will require the formal approval of our agency under the Lake Preservation Act, IC14-26-2. Please include a copy of this tetter with the permit application.

Natural Heritage Database: The Natural Heritage Program's data have been checked. As indicated in the February 17, 2014 letter from Ronald Hellmich, several species and high quality natural communities have been documented within % mile of the project area.

Fish & Wildlife Comments: Avoid and minimize impacts to fish, wildlife, and botanical resources to the greatest extent possible, and compensate for impacts. As project plans develop, we recommend submitting more information for further review, specifically, plan and cross-section views of the proposed dredging. The following are recommendations that address potential impacts identified in the proposed project area:

1) Animal Species; BIRDS: Many of the documented.bird species likely occur in the marshes on the west side of Little Chapman Lake; however, the proposed project will occur in a developed area on the east side of the lake where little to no habitat occurs for these species. Therefore, we do not foresee any impacts to the bird species as a result of this project. BLANDING'S TURTLE: This species was documented across the lake, so major restrictions are not necessary. However, we recommend installing a trenched-in silt fence around the work area if work will take place between March and June of any year to protect the Blanding's turtle during breeding season. MASSASAUGA: We do not foresee any impacts to this snake species as a result of mis project.

2) Dredging: Dredging shall not occur until after July 1 and be completed by December 31 in any calendar year unless an extension waiver is granted; an extension waiver will be reviewed by the department upon written request by the licensee to extend a dredging project through January 31 of the subsequent year in order to complete a dredging project that began prior to October 1; an extension waiver will also be reviewed by the department upon written request by the licensee to extend a dredging project using

THIS IS NOT A PERMIT State of Indiana

DEPARTMENT OF NATURAL RESOURCES Division of Fish and Wildlife

Early Coordination/Environmental Assessment hydrauiic suction through February 28 of the subsequent year in order to complete a dredging project that began prior to November 1; before approving an extension, the department may consider the likelihood of any additional adverse impacts and the likelihood of completion of the project; additional mitigation may be required.

Remove and properly dispose of any dislodged debris, plants, or plant fragments from the lake that result from the dredging. Spoils from the dredging project, either hydraulic or mechanical, should be deposited on an upland site and prevented from eroding into any water body or wetland. This may be accomplished by encircling the disposal area with silt fence or similar material.

The additional measures listed below should be implemented to avoid, minimize, or compensate for impacts to fish, wildlife, and botanical resources: 1. Do not use broken concrete as riprap. 2. Underlay the riprap with a bedding layer of well graded aggregate or a geotextild to prevent piping of soil underneath the riprap. 3. Minimize the movement of resuspended bottom sediment from the immediate project area. 4. Appropriately designed measures for controlling erosion and sediment must be implemented to prevent sediment leaving the construction site; maintain these measures until construction is complete and all disturbed areas are stabilized. 5. Revegetate all bare and disturbed areas landward of the shoreline with a mixture of grasses (excluding all varieties of tall fescue) and legumes as soon as possible upon completion. 6. All excavated material must be properly spread landward of the shoreline on the property or completely removed from the project site such that erosion and off-site sedimentation of the material is prevented. 7. Inspect structural erosion and sediment control practices daily and repair as necessary until all construction is complete and disturbed areas are permanently stabilized. 8. Do not excavate or place fill in any riparian wetland.

Contact Staff: Christie L Stanifer, Environ. Coordinator, Fish & Wildlife Our agency appreciates this opportunity to be of service. Please contact the above staff member at (317) 232-4080 if we can be of further assistance.

StQ^y/^c^jl^y^ Date: March6,2014 Christie L. Stanifer Environ. Coordinator Division of Fish and Wildlife

"Restoring Natural Resources"

May 5, 2014

Indiana Department of Environmental Management Office of Water Quality Section 401 WQC/State Isolated Wetlands Program MC 65-42 IGCN 1255 100 North Senate Avenue Indianapolis, Indiana 46204-2251

RE: Section 401 WQC Regional General Permit Notification

Enclosed is the application package " Section 401 WQC Regional General Permit Notification" for a proposed DNR-Lake and River Enhancement Bank Stabilization Project on Highland Drain located on Little Chapman Lake, Kosciusko, Indiana. Note: The original intent of the project was to also remove sediment from the lake. The sediment removal has been eliminated from this permit request and will be a separate project when funds become available.

The application package includes:

1. State Form 51937 - Section 401 WQC RGP Notification 2. Exhibit # 1 - Location Map 3. Exhibit # 2 - Photographs with location and narrative 4. Exhibit # 3 - Correspondence from DNR-Division of Nature Preserves 5. Exhibit # 4 - DNR-Early Coordination/Environmental Assessment - ER-17435 6. 8.5 X 11" Set of Design Plans

If you have questions or need additional information for your review please let me know.

Senior consultant Applicant Agent 574-536-9879 (cell)

Cc: Greg Hall, President Chapman Lakes Foundation, Inc Rod Edgell, LARE Program Specialist ACOE

15504 C.R. 42 Goshen, IN. 46528

Phone: (574) 229-1687 Fax: (574) 642-3390

www.slenvirogroup.com contact@slenvirogroup.com

SECTION 401 WQC REGIONAL GENERAL PERMIT NOTIFICATION State Form 51937 (R3 / 8-08) INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT

INSTRUCTIONS: 1. Familiarize yourself with the terms and conditions and read the instructions before tilting out this form. 2. All applicable sections of this two page form must be completed.

Date Received: IDEM ID; FOR IDEM USE ONLY

APPLICANT INFORMATION Applicant:

Chapman Lake Foundation, Inc Agent

S&L Environmental Group, Inc Contact person:

Greg Hall, President Contact person:

Wayne Stanger Address {number and street, city, state and ZIP code):

P.O. Box 776 Warsaw, Indiana 46581

Address {number and street, city, state and ZIP code):

15504 CR 42 Goshen, Indiana 46528

Telephone number.

(260)414-1164 Telephone number:

(574) 536-9879 E-mail address:

greg.hall@paragonmedicai.com E-mail address:

wstanger@slenvirogroup.com P R O J E C T LOCATION

County: Nearest Town:

Kosciusko Warsaw Quad Name: Section: Township: Range.

Leesburg 35 33North 6 East Project Address and Driving Directions:

From US 30 take Old US 30 East of Warsaw one mile to 300 East, then north 2.5 miles, angle left on to Chapman Lake Drive. Approximately 600 ft on left. Resident address is 2101 Chapman Lake Drive, Warsaw

EXISTING CONDITIONS ON THE P R O J E C T SITE

LAKE: • YES • NO LAKE NAME:

STREAM: 0 YES • NO STREAM NAME: Highland Drain

WETLAND(S): D Y E S • NO Acreage on the site by wetland type(s): emergent scrub-shrub forested

Date of Wetland Delineation? / / Date of U.S. Army Corps of Engineers jurisdiction correspondence? / /

P R O J E C T IMPACTS Activity Description:

Shape the banks of 300 LF of the drain upstream of Little Chapman Lake to a 1.5 H:1V slope and stabilize the slopes with stone rip rap. Install three channel key ways to reduce the chance of further stream bed scouring. Mix soil into the rip rap voids and overseed with a "Native Bank Stabilization Seed Mix" per planting plan details. Disturbed banks above the rip rap placement will be seeded to a Native Bank Mix with erosion control blanket installed for protection.

Purpose of project:

Stabilize the banks and channel from further erosion. Reduce the delivery of sediment into the lake. The past erosion has deposited sediment at the lake which will require a future dredging project.

FOR L A K E IMPACT: (acceptable fill defined in instructions)

Linear feet of shoreline impact (example - seawall):

Type of fill below the Ordinary High Water Mark Volume (cubic yds.): Acres:

Does the shoreline or open water area have vegetation present? Q YES • NO

Open water fill beyond shoreline: (examples - boat well, underwater beach) Type of fill: Acres:

Page 1 of 5

FOR STREAM IMPACT: (acceptable fill defined in instructions)

Total linear feet of stream impact (examples - bank stabilization, bridge construction or culvert placement, seawall work):

Type of fill below the Ordinary High Water Mark Limestone rip rap

300

Volume (cubicyds): 66

Proposed Start Date of work in the Stream (MM/DD/YY): 07/01/14

Channel width in feet (see instructions): . 12

Proposed End Date of work in the Stream (MM/DD/YY):

3.0

. 08/01/14

Channel depth in feet (see instructions):,

For stream crossings, type of structure proposed to be installed (examples: three-sided or four-sided culvert, bridge, pipe):

For stream crossings, width of culvert structure/diameter of pipe to be installed (feet): Length of culvert structure/pipe (feet):

Open water fill that projects beyond the streambank: Type of fill . 0 Acre(s) of impact: Q

FOR WETLAND IMPACT: (acceptable fill defined in instructions)

Type of fill:

Acre(s) of impact: emergent scrub-shrub forested

SIGNATURE OF APPLICANT - STATEMENT O F AFFIRMATION

I certify that I am familiar with the information contained in this notification form and, to the best of my knowledge and belief, such information is true and accurate. I certify that I have the authority to undertake and will undertake the activities exactly as described in this notification form. I am aware that there are penalties for submitting false information. I understand that any changes in project design subsequent to IDEM's granting of authorization to discharge to a Water of the U.S. are not authorized, and that I may be subject to civil and criminal penalties for proceeding without proper authorization. I agree to allow representatives of IDEM to enter and inspect the project site, i understand that the granting of other permits by local, state, or federal agencies does not release me from the requirement of obtaininathe authorization requested herein before commencing the project.

Signature of applicant:

Printed name of applicant:

Enclose copies of the following documents (ALL enclosures must be on 8.5" by 11" paper):

0 Location map

0 Drawings of existing site and proposed project

0 Cross sections of proposed activities showing extent of fill waterward (for seawall, shoreline, and streambank stabilization impacts)

• Cross sections of proposed activities showing the bankfull width or Ordinary High Water Mark of the stream (for stream encapsulation impacts)

0 At least three photos of the site, labeled

• Copy of wetland delineation report (for projects with wetland impacts)

• Copies of all correspondence from the U.S. Army Corps of Engineers (for projects with wet/and impacts)

0 Copies of all correspondence from the Indiana Department of Natural Resources, Division of Nature Preserves

Date:

Tit le:

(mm/dd/yyyy)

Mail this form and attachments via certified mail to:

Indiana Department of Environmental Management Office of Water Quality

Section 401 WQC/State Isolated Wetlands Program MC 65-42 IGCN 1255

100 North Senate Avenue Indianapolis, Indiana 46204-2251

Please note:

1. Send this form and the attachments via certified mail to IDEM at the above referenced address. IDEM will not notify you when this form is received.

2. IDEM will review this form and all attachments for completeness and accuracy. You will not be contacted by IDEM unless problems are identified with your application. IDEM may require additional information to verify that the project meets all conditions of the Regional General Permit and the Section 401 Water Quality Certification (WQC). If you are not contacted by IDEM within thirty (30) days of the date IDEM receives this notification form, your project is authorized, subject to the terms and conditions of the Section 401 Water Quality Certification and its conditions. You will not receive a written confirmation of authorization.

3. Read aH the terms and conditions of this IDEM Regional General Permit Notification Form, including all U.S. Army Corps of Engineers and IDEM conditions. The terms and conditions of this general permit as instituted by IDEM are included as part of the instructions. Do not submit this notification form or commence work on the proposed project until you understand and are familiar with the limitations and restrictions of the IDEM Regional General Permit Notification Form.

4. Consult this webpage for more information: http://www.in.gov/idem/48 / 0. htm

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DEPARTMENT OF THE ARMY DETROIT DISTRICT, C O R P S O F ENGINEERS

MICHIANA BRANCH 2422 VIRIDIAN DRIVE SUITE # 200

SOUTH BEND IN 46628-3561

EPLY TO ATTENTION OF: June 11, 2014

Engineering & Technical Services Regulatory Office File No. LRE-2014-00088-143

Greg Hall, President Chapman Lake Foundation, Inc. P.O. Box 776 Warsaw, Indiana 46581

Dear Mr. Hall:

Reference your application for a Department of the Army (DA) permit, submitted by S&L Environmental Group, Inc., to discharge fill material into Highland Drain for a bank and channel stabilization project located immediately west of Chapman Lake Drive, Warsaw, Kosciusko County, Indiana (T33N, R6E, Section 35).

Under Section 10 of the Rivers and Harbors Act of 1899 and Section 404 of the Clean Water Act, Chicago, Louisville, and Detroit Districts reissued Regional Permit 1999-1000031 on December 15, 2009, for certain activities having minimal impact in Indiana. We have verified that your proposed work shown on the enclosed plans and described below is authorized under the Regional Permit. You may proceed with the work subject to the enclosed general conditions, any noted special conditions, and Indiana Department of Environmental Management (IDEM) Section 401 Water Quality Certification.

The project appears to meet the terms for IDEM's blanket Section 401 Certification. If you have questions concerning the Certification and its conditions, contact IDEM at 317-233-8488. The following work is authorized, as shown on the attached plans:

Discharge a total of approximately 66 cubic yards of riprap into two areas, each measuring 300' long by 3' wide, for bank stabilization and into three areas, each measuring 3' by 2', for channel key ways.

Special Conditions:

1. All dredged and/or excavated materials will be disposed of in upland location(s) landward of the Ordinary High Water Mark with no placement in, or return to, any waterway or wetland.

2. All fill shall consist of clean, inert materials from an upland source. The fill material must be free from toxic substances, fines, oil and grease, debris,

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wood, general refuse, plaster, and other pollutants, and shall contain no broken asphalt, oil-based material, or metal.

Any construction activity other than that shown on the plans may not qualify for the Regional Permit. If you plan changes or additional activities from those depicted on the plans, please submit them to this office for review prior to construction.

Upon completion of the work authorized by this Regional Permit, the enclosed Completion Report form must be completed and returned to this office. This verification is valid until December 15, 2014, or 1 year from the date of this letter, whichever occurs later, unless the Regional Permit is modified, suspended, or revoked.

Also enclosed with this letter is a Preliminary Jurisdictional Determination (PJD). This determination advises an interested party that the Corps of Engineers believes there may be waters and/or wetlands of the United States on the property that fall under the Corps' regulatory authority. A PJD enables the Corps and a permit applicant or other affected party to resolve certain jurisdiction and permit issues without expending time on making an official determination of the Corps1 jurisdiction. At any time, an applicant/affected party may request an approved jurisdictional determination, which would provide an official determination of jurisdictional waters on a site. An approved jurisdictional determination can be administratively appealed (information regarding the appeals process wouid be provided to you should the situation arise). If use of a PJD satisfies your needs with respect to the above-discussed activity, please sign and return a copy of the PJD to our office within 30 days of the date of this letter. As stated in paragraph 2 of the enclosed PJD, undertaking the work subject to this permit verification, even if you do not return a signed copy of the PJD, constitutes acceptance of the use of the PJD and agreement that all wetlands and waterbodies on the site affected in any way by the work in question are jurisdictional waters of the United States.

We are interested in your thoughts and opinions concerning your experience with the Detroit District, Corps of Engineers Regulatory Program. If you are interested in letting us know how we are doing, you can complete an electronic Customer Service Survey from our web site at: http://corpsmapu.usace.army.mil/cm apex/f?p=136:4:0. Alternatively, you may contact us and request a paper copy of the survey that you may complete and return to us by mail or fax. Thank you for taking the time to complete the survey. We appreciate your feedback.

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Should you have any questions, please contact me at the above address, by E-Mail at Rebecca.L.Hartman@usace.army.mil, or by telephone at 574-232-1952 ext. 21969. In all communications, please refer to File Number LRE-2014-00088-143.

Sincerely,

ORIGINAL SIGNED BY

Rebecca L. Hartman Regulatory Project Manager Michiana Branch

Enclosures

Copy Furnished Matt Smedley (IDEM, Office of Water Quality)

v^/ayne Stanger (S&L Environmental Group, Inc.)

Appendix "E"

Estimated Load Reductions

Bank Stabilization

If estimating for just one bank, put "0" in areas for Bank #2.

Please select a soil textural c l a s s :

r , Sands, loamy sands C i Silty clay loam, silty clay r, Sandy loam r, Clay loam

r , Fine sandy loam r, Clay

r , Loams, sandy clay loams, sandy clay r, Organic • Silt loam

Please fill in the gray areas below:

Parameter Bank #1 Bank #2 Example Length (ft) 300 300 500 Height (ft) 4.5 4.5 15 Lateral Recession Rate (ft/yr)* 0.4 0.4 0.5 Soil Weight (tons/ft3) 0.0425 0.0425 0.04

1 DEFAULT • ! Soil P Cone (lb/lb soil)** 1 0.0005 0.0005 0.0005

DEFAULT Soil N Cone (lb/lb soil)** 0.001 0.001 0.001 ** If not using the default values, users must provide input (in red) for Total P and Total N soil concentrations 'Lateral Recession Rate (LRR) is the rate at which bank deterioration has taken place and is measured in feet per year. This rate may not be easily determined by direct measurement. Therefore best professional judgement may be required to estimate the LRR. Please refer to the narrative descriptions in Table 1.

Estimated Load Reductions BMP

Efficiency* Bank #1

BMP Efficiency*

Bank #2 Bank #1 Bank #2 Example

Sediment Load Reduction (ton/year) 1.0 1.0 23.0 23.0 150

Phosphorus Load Reduction (lb/year) 23.0 23.0 150

Nitrogen Load Reduction (Ib/yr) 45 9 45.9 300