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Environmental Protection Agency, Region 6 

1445 Ross Avenue, Suite 1200 

Dallas, Texas 75202-2733 

RE: Water Quality Certification for Stormwater Multi-Sector General Permit for Industrial Activities 

(OKR05FOOO and OKR051000). 

Dear Director Honker: 

The Department of Environmental Quality (DEQ) has received your request for a Water Quality Certification 

under Section 401 of the Federal Clean Water Act [33 U.S.C. § 1251 et seq. (1972)], for the Stormwater MultiSector General Permit for Industrial Activities (OKR05FOOO and OKR051000). DEQ rules governing 401 Water 

Quality Certification are contained in Oklahoma Administrative Code (O.A.C.) § 252:611-3 (2011) pursuant to 

27A O.S. §2-6-103(C)(2) [OSCN 1999]. For copies of the DEQ rules and regulations related to the 401 

procedures, please access it online at www.deq.state.ok.us/rules/61l.pdf or contact the DEQ Office of External 

Affairs at (800) 869-1400. 

We have reviewed your draft permit, fact sheet, and other relevant information while developing this 

Certification. 

DEQ grants Clean Water Act 401 Water Quality Certification for OKR05FOOO and OKR051000 and is subject to 

the following conditions. These conditions are necessary to comply with Oklahoma's Water Quality Standards 

and with the Clean Water Act sections 208(e), 301, 302, 303, 306, and 307: 

1. For the Multi-Sector General Stormwater Permit for Industrial Activities applicable to facilities 

not under the jurisdiction of the Oklahoma Department of Environmental Quality, OKR05FOOO: 

In accordance with Oklahoma's Water Quality Standards (OAC 785 :45-5-25), Certification is 

denied for any new or proposed discharges located within the watershed of any patt of the 

Oklahoma Scenic Rivers system, including the Illinois River, Flint Creek, BatTen Fork Creek, 

Upper Mountain Fork River, Little Lee Creek, Big Lee Creek or to any water designated as an 

Outstanding Resource Water (ORW). Existing discharges of stormwater in these watersheds 

may be permitted under the MSGP only from point sources existing as of June 25, 1992, 

whether or not such stormwater discharges were permitted as point sources prior to June 25, 

1992. For any such existing discharge, increased load of any pollutant above levels of June 25, 

1992 is prohibited. 

2. For the Multi-Sector General Stormwater Petmit for Industrial Activities applicable to facilities 

located on Indian Country lands, OKR051000: In accordance with Oklahoma's Water Quality 

Standards (OAC 785:45-5-25) certification is denied for any new or proposed discharges 

707 NORTH ROBINSON, P.O. BOX 1677, OKLAHOMA CllY, OKLAHOMA 73101-1677 

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is prohibited. 

If you have any questions regarding this certification, please contact Elena Jigoulina at 405-702-8200. 

Sincerely yours, 

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Mark Derichsweiler, P.E., Manager 

Watershed Planning & Stormwater Permitting 

Water Quality Division 

cc: Richard Hatcher, Director, Oklahoma Department of Wildlife Conservation 

Kevin Burgess, U. S. Fish and Wildlife Service 

Derek Smithee, Water Quality Programs Division, Oklahoma Water Resources Board 

Brooks Tramell, Monitoring, Assessment and Wetlands Programs, Oklahoma Conservation Commission 

Claudia Hosch, EPA Region 6 

Tom Bates, Public Protection Unit Chief, Attorney General of Oklahoma