IDEM ID Number: 2020-102-26-TMS-A PUBLIC NOTICEby the Indiana Department of Environmental Management...

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Version 1.0 – 12/7/06 Indiana Department of Environmental Management Office of Water Quality Wetlands Section PUBLIC NOTICE Publication Date: March 18, 2020 Closing Date: April 8, 2020 IDEM ID Number: 2020-102-26-TMS-A Corps of Engineers ID Number: LRL-2020-152-JMG To all interested parties: This letter shall serve as a formal notice of the receipt of an application for Section 401 Water Quality Certification by the Indiana Department of Environmental Management (IDEM). The purpose of the notice is to inform the public of active applications submitted for water quality certification under Section 401 of the Clean Water Act (33 U.S.C. § 1341) and to solicit comments and information on any impacts to water quality related to the proposed project. IDEM will evaluate whether the project complies with Indiana’s water quality standards as set forth at 327 IAC 2. 1. Applicant: Duke Energy 2. Agent: Cardno William Taylor David Glista 1000 East Main St. Plainfield, IN 46168 3901 Industrial Blvd Indianapolis, IN 46254 3. Project location: 1097 North 950 West Owensville, Gibson County 4. Affected waterbody: Emergent Wetland 5. Project Description: The applicant proposes to permanently impact 0.39 acre of emergent wetland with the placement of fill material associated with modifications to the east and south slopes of the final cover for the RWS II Landfill at the Duke Energy Gibson East Generating Station. To compensate for the permanent wetland impacts, the applicant proposes to purchase 0.78 acre of emergent wetland mitigation credit from the Indiana Stream and Wetland Mitigation Program within the Lower Wabash Service Area. In addition, the applicant proposes to temporarily impact 0.67 acre of emergent wetland for placement of a temporary work pad during construction activities. Upon completion of the project, the work pad will be removed, and the wetland areas will be returned to original grade and seeded with a native emergent wetland seed mix. For additional information please visit the following webpage address: http://www.in.gov/idem/5474.htm Comment period: Any person or entity who wishes to submit comments or information relevant to the aforementioned project may do so by the closing date noted above. Only comments or information related to water quality or potential impacts of the project on water quality can be considered by IDEM in the water quality certification review process. Public Hearing: Any person may submit a written request that a public hearing be held to consider issues related to water quality in connection with the project detailed in this notice. The request for a hearing should be submitted within the comment period to be considered timely. The request should also state the reason for the public hearing as specifically as possible to assist IDEM in determining whether a public hearing is warranted. Questions? Additional information may be obtained from Mrs. Amari Farren, Project Manager, at 317-234-6351 or by email to [email protected]. Please address all correspondence to the project manager and reference the IDEM project identification number listed on this notice. Indicate if you wish to receive a copy of IDEM’s final decision. Written comments and inquiries may be forwarded to – Indiana Department of Environmental Management 100 North Senate Avenue MC65-42 WQS IGCN 1255 Indianapolis, Indiana 46204-2251 FAX: 317/232-8406

Transcript of IDEM ID Number: 2020-102-26-TMS-A PUBLIC NOTICEby the Indiana Department of Environmental Management...

Page 1: IDEM ID Number: 2020-102-26-TMS-A PUBLIC NOTICEby the Indiana Department of Environmental Management (IDEM). The purpose of the notice is to inform the public of active applications

Version 1.0 – 12/7/06

Indiana Department of Environmental Management Office of Water Quality

Wetlands Section

PUBLIC NOTICE Publication Date:

March 18, 2020

Closing Date: April 8, 2020

IDEM ID Number: 2020-102-26-TMS-A

Corps of Engineers ID Number: LRL-2020-152-JMG

To all interested parties: This letter shall serve as a formal notice of the receipt of an application for Section 401 Water Quality Certification by the Indiana Department of Environmental Management (IDEM). The purpose of the notice is to inform the public of active applications submitted for water quality certification under Section 401 of the Clean Water Act (33 U.S.C. § 1341) and to solicit comments and information on any impacts to water quality related to the proposed project. IDEM will evaluate whether the project complies with Indiana’s water quality standards as set forth at 327 IAC 2.

1. Applicant: Duke Energy 2. Agent: Cardno William Taylor David Glista 1000 East Main St. Plainfield, IN 46168

3901 Industrial Blvd Indianapolis, IN 46254

3. Project location: 1097 North 950 West Owensville, Gibson County

4. Affected waterbody: Emergent Wetland

5. Project Description: The applicant proposes to permanently impact 0.39 acre of emergent wetland with the placement of fill materialassociated with modifications to the east and south slopes of the final cover for the RWS II Landfill at the Duke Energy Gibson East Generating Station. To compensate for the permanent wetland impacts, the applicant proposes to purchase 0.78 acre of emergent wetland mitigation credit from the Indiana Stream and Wetland Mitigation Program within the Lower Wabash Service Area. In addition, the applicant proposes to temporarily impact 0.67 acre of emergent wetland for placement of a temporary work pad during construction activities. Upon completion of the project, the work pad will be removed, and the wetland areas will be returned to original grade and seeded with a native emergent wetland seed mix. For additional information please visit the following webpage address: http://www.in.gov/idem/5474.htm

Comment period: Any person or entity who wishes to submit comments or information relevant to the aforementioned project may do so by the closing date noted above. Only comments or information related to water quality or potential impacts of the project on water quality can be considered by IDEM in the water quality certification review process.

Public Hearing: Any person may submit a written request that a public hearing be held to consider issues related to water quality in connection with the project detailed in this notice. The request for a hearing should be submitted within the comment period to be considered timely. The request should also state the reason for the public hearing as specifically as possible to assist IDEM in determining whether a public hearing is warranted.

Questions? Additional information may be obtained from Mrs. Amari Farren, Project Manager, at 317-234-6351 or by email to [email protected]. Please address all correspondence to the project manager and reference the IDEM project identification number listed on this notice. Indicate if you wish to receive a copy of IDEM’s final decision. Written comments and inquiries may be forwarded to –

Indiana Department of Environmental Management 100 North Senate Avenue MC65-42 WQS IGCN 1255 Indianapolis, Indiana 46204-2251 FAX: 317/232-8406

Page 2: IDEM ID Number: 2020-102-26-TMS-A PUBLIC NOTICEby the Indiana Department of Environmental Management (IDEM). The purpose of the notice is to inform the public of active applications

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Gibson East RWS 2 LandfillRegulated Waters Delineation Report

Duke EnergyGibson County, Indiana

Figure 5-0: Delineated FeaturesTh is m ap and all data contained with inare supplied as is with no warranty.Cardno, Inc. expressly disc laim sresponsib ility for dam ages or liab ility fromany claim s th at m ay arise out of th e useor m isuse of th is m ap. It is th e soleresponsib ility of th e user to determ ine ifth e data on th is m ap m eets th e user’sneeds. Th is m ap was not c reated assurvey data, nor sh ould it b e used assuc h . It is th e user’s responsib ility toob tain proper survey data, prepared b y alicensed surveyor, wh ere required by law.

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Page 4: IDEM ID Number: 2020-102-26-TMS-A PUBLIC NOTICEby the Indiana Department of Environmental Management (IDEM). The purpose of the notice is to inform the public of active applications

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394.5

389.7

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414.5

434.8

393.4

416.1

434.2

389.6

419.0

416.8

419.2

394.5

417.2

416.9

393.0

394.2

392.8

395.1

390.6

389.0

390.5

432.1

416.7

403.6

404.7

405.8

405.2

430.5

404.7

405.2

434.9

433.7

407.1

391.3

389.0

407.2

406.9

407.2

406.8

423.5

421.7

417.4

416.6

419.7

424.7

433.5

424.6

431.1

423.1

416.5

417.3

420.8

403.5

403.6

404.9

391.0

422.8

420.8

419.3

415.3

414.4

415.1

432.3

434.8

420.7

390.3

392.2

433.9

390

425

425

430

435

440

445

450

395

400

405

410

415

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4

0

5

4

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6

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480

480

480

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400

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RWS II LANDFILL

COOLING POND

C

O

O

N

C

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E

E

K

C

O

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C

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NORTH ASH POND

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D 975 W

4

0

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4

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1

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4

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2

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3

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4

3

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4

6

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4

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4

2

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4

3

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4

3

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4

4

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4

4

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4

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4

5

5

4

6

0

4

6

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405

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415

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4

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400

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440

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4

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4

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4

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0

4

6

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0

E

E

E

EE

EE

E

E

E

E

E

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EE

E

E

E

E

E

EE

E

E

E

E

Gravel

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

E

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E

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E

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E

E

E

E

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E

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E

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W

W

W

W

W

W

W

W

W

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WW

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W

WW

WW

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WW

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W

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W

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W

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W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

W

MW-3A

MW-3B

MW-3C

MW-4A

MW-4B

MW-4C

MW-10A

MW-10B

MW-10C

MW-7A

MW-7B

MW-5A

MW-5BR

MW-5CR

MW-6A

MW-6B

MW-1A

MW-1B

MW-1C

MW-21B

MW-21C

MW-2AR

MW-2BR

MW-2CR

MW-2A

MW-2B

MW-2C

MW-32C

MW-32B

MW-33A

MW-33B

MW-33C

MW-40C

MW-46B

MW-46C

MW-44B

MW-44C

MW-45A

MW-45B

MW-45C

MW-51A

MW-51B

MW-51C

PROPOSED 18 IN. DIA. DROP

INLETS (SEE DETAIL 17) TYP.

DROP INLET NO. 3

DROP INLET NO. 9

PROPOSED 2-24 IN. DIA. DROP

INLETS (SEE DETAIL 13) TYP.

PROPOSED DIVERSION

BERM (SEE DETAIL 9)

PROPOSED 18 IN. DIA.

DOWNDRAIN PIPE

(SEE DETAIL 26) TYP.

DROP INLET

NO. 1

DROP INLET

NO. 6

DROP INLET

NO. 2

DROP INLET

NO. 7

DROP INLET

NO. 8

DROP INLET

NO. 4

DROP INLETS

NO. 11

PROPOSED 24 IN. DIA. DROP

INLETS (SEE DETAIL 17) TYP.

DROP INLET NO. 12

DROP INLET

NO. 13

DROP INLET

NO. 16

DROP INLET

NO. 17

DROP INLET

NO. 18

DOWNDRAIN PIPE OUTLET

(SEE DETAIL 25) TYP.

PROPOSED ENERGY

DISSIPATOR

(SEE DETAIL 34) TYP.

DROP INLETS NO. 5

(SEE DETAIL 13) TYP.

DROP INLETS

NO. 10

DROP INLETS

NO. 14

DROP INLETS

NO. 15

REV JOB NO.DATE PROJECT TYPE CHKDENGR APPDDES DFTR DESCRIPTION

RE

V.

10 20 30

TENTHSINCHES

1 2 3

DWG SIZE REVISION

FOR

DRAWING NO.

TITLE

FILENAME:

REV.

DWG TYPE:

JOB NO:

DATE:

SCALE: DES:

DFTR:

CHKD:

ENGR:

APPD:

A

F

E

D

C

B

2 3 4 5 7 8 96

4 5 7 8 9 106

A

F

C

B

24.0"x35.5"

ARCH D

R

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01

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ATC GROUP SERVICES LLC

7988 CENTERPOINT DR.

SUITE 100

INDIANAPOLIS, IN 46256

PHONE:

FAX:

+1 317 849 4990

+1 317 849 4278

WWW.ATCGROUPSERVICES.COM

PROPOSED FINAL COVER

STORMWATER MANAGEMENT PLAN

EAST AND SOUTH SLOPE MODIFICATION

RWS II LANDFILL

GIBSON GENERATING STATION

GBS_C907.002.008

AS SHOWN

DWG

170LF00736

12/19

BP

CL

BM

BM

BM

GBS_C907.002.008

GB

S_

C9

07

.0

02

.0

08

GBS_C907.002.008

0

0

0

50

SCALE: 1" = 200'

200 0 100 150 200

N

LEGEND:

SURVEY CONTOUR BOUNDARY

PERMITTED LANDFILL SOLID WASTE BOUNDARY

4302013 LIDAR CONTOURS

LIMITS OF EXISTING GEOMEMBRANE

TREE LINE

PIPE LINE

ROAD/ACCESS

MW-1C

EXISTING MONITORING WELL

(BY ATC)

MW-A302

EXISTING MONITORING WELL

(BY ATC 2015/2016)

WETLAND LIMITS

W W W

EXISTING WATER LINE

4302-14-19 SURVEY CONTOURS

4306-20-19 SURVEY CONTOURS

4308-26-19 SURVEY CONTOURS

EXISTING RIPRAP

EXISTING 6" CPP

EXISTING 24" CPP

EXISTING CATCH BASIN STRUCTURE

POWER POLE

LIGHT POLE

E E

EXISTING GUARD RAIL

OVERHEAD POWER

EXISTING ASPHALT ROAD

EXISTING FENCE LINE

430PROPOSED FINAL COVER CONTOURS

PROPOSED DIVERSION BERM

PROPOSED DOWNDRAIN

PROPOSED 24 IN. DIA. DROP INLET

PROPOSED 18 IN. DIA. DROP INLET

PROPOSED ENERGY DISSIPATOR

90% SUBMITTAL

NOT FOR CONSTRUCTION

TEMPORARY MATTING IN WETLANDS (BY CARDNO)

PROPOSED TEMPORARY SILT FENCE

Page 5: IDEM ID Number: 2020-102-26-TMS-A PUBLIC NOTICEby the Indiana Department of Environmental Management (IDEM). The purpose of the notice is to inform the public of active applications

Data Sources:Date Created: 1/10/2020 File Path: R:\Projects\18\185\185208MC_DukeEnergy_MaximoCoNo23205\15_Gibson_EastSide_FSS\CAD\Temp Matting.dwg Saved By: Stephen.LaFon

This map and all data contained within aresupplied as is with no warranty. Cardno, Inc.expressly disclaims responsibility for damages orliability from any claims that may arise out of theuse or misuse of this map. It is the soleresponsibility of the user to determine if the data onthis map meets the user’s needs. This map wasnot created as survey data, nor should it be usedas such. It is the user’s responsibility to obtainproper survey data, prepared by a licensedsurveyor, where required by law.

OverviewGibson Station East RWS II Slope Modification

Duke EnergyGibson County, Indiana

3901 Industrial Blvd.,Indianapolis, IN 46254 USAPhone (+1) 317-388-1982 Fax (+1) 317-388-1982www.cardno.com

²Project No.j185208m15

WETLAND

TEMPORARY MATTING / RESTORATION

Page 6: IDEM ID Number: 2020-102-26-TMS-A PUBLIC NOTICEby the Indiana Department of Environmental Management (IDEM). The purpose of the notice is to inform the public of active applications

Data Sources:Date Created: 1/10/2020 File Path: R:\Projects\18\185\185208MC_DukeEnergy_MaximoCoNo23205\15_Gibson_EastSide_FSS\CAD\Temp Matting.dwg Saved By: Stephen.LaFon

This map and all data contained within aresupplied as is with no warranty. Cardno, Inc.expressly disclaims responsibility for damages orliability from any claims that may arise out of theuse or misuse of this map. It is the soleresponsibility of the user to determine if the data onthis map meets the user’s needs. This map wasnot created as survey data, nor should it be usedas such. It is the user’s responsibility to obtainproper survey data, prepared by a licensedsurveyor, where required by law.

Wetland Area Temporary ImpactGibson Station East RWS II Slope Modification

Duke EnergyGibson County, Indiana

3901 Industrial Blvd.,Indianapolis, IN 46254 USAPhone (+1) 317-388-1982 Fax (+1) 317-388-1982www.cardno.com

0 100 200 Feet

²Project No.j185208m15

WETLAND

PERMANENT WETLAND IMPACT

TEMPORARY MATTING / RESTORATION