Storm Water Management

The Oklahoma Turnpike Authority (OTA) is committed to preventing stormwater pollution. OTA currently operates under three stormwater permits:

1. OKS0001001 [Oklahoma City Phase 1]: OTA is a co-permittee on a Phase I stormwater permit with the City of Oklahoma City and the Oklahoma Department of Transportation (ODOT). The most recent permit can be found at this link 20362753 - Stormwater - MS4 Support Documents - OKLAHOMA CITY-MS4 - FAC ID: OKS000101 - AUTH#:. The permit requires the permittees to develop a Stormwater Management Program (SWMP). The SWMP includes controls to prohibit the discharge of non-stormwater as well as controls to reduce the level of pollutants in stormwater. The SWMP also requires an annual report. The most recent annual report can be found at this link Flipbook (flipbookpdf.net). OTA’s primary responsibility under this permit is the management of stormwater runoff from the Kilpatrick Turnpike and its associated maintenance facilities. A portion of the Turner and Kickapoo Turnpikes are also covered under this permit. This document includes a list of activities performed by OTA to control the level of pollutants in stormwater runoff. 
2. OKS0002001 [Tulsa Phase 1]: OTA is a co-permittee with the City of Tulsa and ODOT. The most recent permit can be found at this link OKS000201-City-of-Tulsa-Permit.pdf. Like Oklahoma City’s permit, the Tulsa Phase 1 permit requires the permittees to develop an SWMP and an annual report. The most recent annual report can be found at this link. OTA’s primary responsibility under the Tulsa MS4 permit is the management of stormwater runoff from the Creek and Gilcrease Turnpikes and the Creek Turnpike Maintenance facility.
3. OKR040045 OKR04 [Small MS4]: OTA has roadways adjacent to 10 small MS4 areas. OTA is required to obtain a permit for discharges in these areas. The most recent authorization can be found at this link.

In addition to meeting the conditions in the three permits shown above, the OTA requires contractors who work on OTA projects to meet all DEQ requirements for construction permitting and stormwater management. Usually, this requires contractors to obtain coverage under DEQ permit OKR10: Storm Water Discharges from Construction Activities.

OTA promotes good housekeeping and strives to maintain best management practices at all of its facilities, whether covered under a permit or not. The OTA is continuously working to improve its stormwater program. If you have any suggestions, comments, or questions about how stormwater is managed at OTA, please contact Ed Dihrberg at (405) 425-7449.