OKR10 Construction Stormwater

Overview

Stormwater runoff from construction sites carries significant amounts of sediment and other pollutants which have the potential to harm streams, lakes, and wetlands. As stormwater flows over a construction site, it can pick up pollutants like sediment, debris, and chemicals, and transport these to a nearby municipal storm sewer system or directly to a stream, lake, or wetland. Sediment in waterbodies from construction sites can reduce the amount of sunlight reaching aquatic plants, clog fish gills, smother aquatic habitat and spawning areas, and high volumes of runoff can cause stream bank erosion and impede navigation. Controlling erosion and sediment can significantly reduce the amount of sedimentation and other pollutants transported by stormwater runoff from construction sites. The Oklahoma Pollution Discharge Elimination System (OPDES) stormwater program, authorized by the NPDES stormwater permitting program, requires construction site owners/operators to obtain coverage under the OPDES Construction General Permit OKR10 to discharge stormwater from their construction sites and implement appropriate pollution prevention controls/techniques to minimize pollutants and reduce stormwater runoff.

A permit is required before construction activity can start at a site. Discharge of stormwater from a construction site without first obtaining a permit from DEQ is in violation of Title 27A O.S. §2-6-205 of the Oklahoma Statutes. As part of the application, the owner and/or operator must develop and implement a Stormwater Pollution Prevention Plan (SWP3) to minimize pollutants and reduce stormwater runoff. The applicant may need additional permit coverage from the city/county government for the construction site. The applicant must check with them before submitting a Notice of Intent (NOI) to DEQ.

For more information about construction stormwater, please view: OKR10 Construction Activities Fact Sheet

Who Needs a Permit and How to Apply

Who needs a Permit?

You will need an OKR10 permit if you are the owner or operator for any construction activity disturbing:

  • One acre or more, or
  • Less than one acre if that activity is part of a “larger common plan of development or sale” that is greater than one acre.

For more assistance determining an OKR10 permit is required for your project, please refer to: OKR10 Decision Flow Chart

How to Apply for a Permit?

Before filling out an NOI, understand the requirements of the current OKR10 General Permit for Construction Activity and prepare a SWP3 in accordance with the requirements of OKR10 Permit. Once the NOI and SWP3 have been prepared and completed for your construction site, submit the following to DEQ:

  • Completed NOI (Construction Stormwater Notice of Intent (PDF))
  • A Permit Fee of $447.71 (application fee $100 and annual fee $347.71)
  • A copy of the SWP3 if your project is:
    • Located in an Aquatic Resource of Concern (ARC)
    • Located in an Outstanding Resource Water (ORW)
    • Is disturbing 40 acres or more
    • Is 5 acres or more and located within the Lake Thunderbird TMDL watershed

Attach a check for the applicable fees payable to DEQ with your NOI. You may pay the fees using a credit card (only Visa or Master Card are acceptable) by calling DEQ Finance at (405) 702-1130.

Where to Submit an NOI?

Mailing Address

Stormwater Unit of ECLS

Oklahoma DEQ

707 N Robinson Ave

P. O. Box 1677

Oklahoma City, OK, 73101-1677

Fax

(405) 702-6226

Email

ECLS-StormwaterPermitting@deq.ok.gov

If you have questions about your NOI submittal, please contact the Stormwater Unit of ECLS at (405) 702-6100.

NOI Processing Time

NOI processing time is approximately 14 days from the date of receipt. If you are required submit a SWP3 to DEQ for review, processing time will be approximately 30 to 45 days.

Construction Stormwater Templates and Additional Information

Useful Links

 

Technical Assistance & Outreach

Technical Assistance

If you would like on-site technical assistance, or have a question about stormwater enforcement, please contact the appropriate representative below:

SW_Districts_July2019SW_Districts_July2019SW_Districts_July2019

SW_Districts_July2019

Outreach

DEQ offers various outreach and training opportunities, to schedule an event please contact:

Wayne T. Craney
(405) 702-8139

 

Frequently Asked Questions

Coming soon!