Understanding Stormwater Pollution Prevention Plan (SWPPP) Requirements in Oklahoma

With growing environmental concerns and strict regulations, it is essential for operators to stay informed about compliance requirements. In Oklahoma, this includes adhering to the Oklahoma Department of Environmental Quality (ODEQ) OKR10 permit and developing a comprehensive Stormwater Pollution Prevention Plan (SWPPP). This article provides an overview of SWPPP requirements, OKR10 permit compliance, and the process for submitting a Notice of Intent (NOI) with the ODEQ for stormwater permit coverage.

What is a Stormwater Pollution Prevention Plan (SWPPP)?

A SWPPP is a site-specific document that outlines strategies and practices to prevent pollutants from contaminating stormwater runoff. The primary goal of the SWPPP is to minimize the impact of construction and industrial activities on local water bodies by controlling sediment, erosion, and other potential pollutants from leaving the construction site.

Who Needs a SWPPP in Oklahoma?

In Oklahoma, any construction activity disturbing one acre or more of land must develop a SWPPP as part of obtaining coverage under the OKR10 General Permit for Stormwater Discharges from Construction Activities. Smaller projects that are part of a larger common plan of development that cumulatively disturb an acre or more are also subject to these requirements. For all projects under one acre of land disturbance, a SWPPP and the related permit coverage is generally not required.

Key Components of a SWPPP

A compliant SWPPP must include the following elements:

1. Site Description

   • Location and size of the project.

   • Description of construction activities.

   • Identification of potential pollutant sources expected to be kept onsite.
     

2. Erosion and Sediment Controls

   • Detailed measures to prevent soil erosion and sediment discharge, such as silt fences, sediment basins, and temporary seeding. This must be included in narrative form and outlined on a map of the site.
     

3. Good Housekeeping Practices

   • Proper waste management, material storage, and spill prevention practices and procedures to be used to reduce the risk of such materials discharging from the site.
     

4. Inspections and Maintenance

   • Regular site inspections to ensure that control measures are functioning correctly. Specific to Oklahoma, the site must be inspected every 14 days and after a ½” of rain or greater.

   • Maintenance schedules for stormwater controls.
     

5. Recordkeeping

   • Documentation of inspections, maintenance, and any corrective actions taken.
     

OKR10 General Permit Requirements

The OKR10 General Permit is issued by ODEQ and applies to stormwater discharges associated with construction activities. To comply with OKR10, operators must:

1. Prepare a SWPPP before submitting a Notice of Intent (NOI).
   

2. Submit a NOI to ODEQ to request coverage under the OKR10 General Permit.
   

3. Implement the SWPPP at the project site.
   

4. Conduct Regular Inspections and maintain proper documentation as required by the permit.
   

5. Submit a Notice of Termination (NOT) when construction is complete, and final stabilization has been achieved.
   

Understanding the Notice of Intent (NOI)

The NOI is a formal application submitted to ODEQ to obtain coverage under the OKR10 General Permit. Key steps in the NOI process include:

1. Completing the NOI Form

   • Provide information about the project, including location, estimated start and end dates, and operator details.
     

2. Submitting the NOI

   • NOIs can be submitted electronically through ODEQ’s online portal or by emailing in the PDF form.
     

3. Paying the Required Fee

   • The fee is $450 paid annually via the ODEQ’s online portal or by calling in to the ODEQ office. 
     

4. Receiving Confirmation of Coverage

   • Once the NOI is processed and approved, ODEQ will issue confirmation of coverage under the OKR10 permit. Typical processing time is between 7 – 14 business days.
     

Compliance and Enforcement

Failure to develop a SWPPP, submit a NOI, or comply with OKR10 requirements can result in significant penalties, including fines and potential project delays. Regular audits and inspections by ODEQ help ensure that operators adhere to the required standards.

Final Thoughts

Ensuring compliance with SWPPP and OKR10 requirements is essential for protecting Oklahoma’s water resources and avoiding costly enforcement actions. By developing a comprehensive SWPPP, submitting the required NOI, and maintaining compliance throughout the project lifecycle, operators can ensure project’s stay on time and budget.

Not sure if you have everything you need?

Contact the qualified stormwater compliance professionals at Eco Permit Pros today to check SWPPP off your to-do list!

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