Navigating Stormwater Regulations: What Industrial Facility Operators Need to Know About MSGP & SWPPP
- Tyler Whitt
- Apr 22
- 3 min read
Updated: Apr 30

You’ve just discovered that keeping your industrial site in line with EPA and state stormwater rules isn’t as straightforward as you thought. Suddenly, acronyms like MSGP and SWPPP feel like a foreign language—and the thought of wrestling with permit applications gives you a headache. You need clear answers, a proven plan, and someone who can take the regulatory burden off your shoulders.
Welcome to Eco Permit Pros: where we turn confusing compliance requirements into a simple, step‑by‑step solution so you can focus on running your operation, not chasing permits. This guide aims to simplify these concepts and outline the necessary actions for achieving and maintaining stormwater compliance, ultimately safeguarding operations and your budget.
What is the Industrial Multi-Sector General Permit (MSGP)?
The Industrial Multi-Sector General Permit serves as an official permit from the state's environmental agency (Department of Environmental Quality or similar) authorizing the discharge of stormwater from industrial sites, provided it meets specific cleanliness standards. This permit establishes rules to prevent pollutants from contaminating rainwater (stormwater pollution) as it leaves the property. Failure to adhere to these regulations can lead to operational disruptions and financial penalties.
The SWPPP, or stormwater pollution prevention plan, acts as a detailed operational manual for preventing pollution of stormwater. Also known as an SWP3, SW3P, or stormwater management plan, it provides site-specific instructions on how to prevent pollutants that are kept on site and used as part of regular facility activities from mixing with rainwater runoff and entering nearby waterways. A well-developed SWPPP is essential for fulfilling the requirements of the Industrial MSGP.
How Do I Achieve Stormwater Compliance?
Achieving compliance necessitates a comprehensive SWPPP that addresses all aspects of the MSGP. This typically involves:
Thorough Site Evaluation: A detailed assessment to identify all potential sources of pollution across the facility, including material storage areas, loading and unloading zones, and waste management sites. A proper site map is the first step in acquiring a MSGP permit and fulfilling regulator requirements.
Implementation of Best Management Practices (BMPs): The strategic application of preventative measures such as covering storage areas, establishing spill response protocols, and implementing erosion and sediment controls in areas where soils may be exposed due to industrial activities. BMP's should regularly reviewed for competency and updated as needed to ensure they are always up for the task assigned.
Regular Site Inspections: Routine checks to ensure that all implemented BMPs are functioning correctly and are well-maintained. Maintaining thorough records of the SWPPP monitoring program and facility inspections are a key requirement of the MSGP and are often the first documents a regulator reviews upon inspection of a facility.
Water Quality Monitoring: This may include visual assessments and more technical evaluations like turbidity monitoring to assess the clarity of the stormwater discharge as outlined per the sector-specific guidelines of the MSGP. All needed assessments should be clearly defined in the SWPPP and are usually performed on a quarterly and/or annual basis.
Timely Regulatory Reporting: For facilities where turbidity monitoring or visual assessments are required, most states will require these results to be uploaded to a state-sponsored portal by a quarterly or annual deadline. Failure to comply with reporting requirements can lead to financial penalties for the facility and in extreme cases, stop-work orders.
Comprehensive Personnel Training: Ensuring that all staff understand the importance of stormwater compliance and their specific roles in implementing the SWPPP. Across all states, the MSGP requires facilities to have an annual training program in place for all employees on the specific requirements of the facility’s SWPPP. This documentation must be signed and kept along with the regular SWPPP monitoring and any Water Quality Reports.
Next Steps: Create Your SWPPP and File for Your Permit
Navigating these complex requirements can be challenging. Specialized environmental consulting firms, such as Eco Permit Pros, offer expertise in industrial stormwater compliance and can provide valuable assistance by:
Developing customized SWPPPs that align with the specific operations of the facility and the requirements of the MSGP.
Providing clear guidance on all permit obligations and BMP requirements.
Assisting with the preparation or updates of the Notice of Intent (NOI).
Delivering targeted training programs to facility personnel on SWPPP implementation.
Establishing effective SWPPP inspection and SWPPP monitoring programs.
Ensuring accurate and timely regulatory reporting.
Providing resources to accurately complete all documentation requirements
Provide technological solutions to expedite the compliance of the facility.
For facilities facing stormwater permitting challenges, engaging with experienced professionals is a proactive step towards ensuring environmental responsibility and operational continuity. A well-structured SWPPP, developed with expert guidance, provides a clear roadmap for achieving and maintaining stormwater compliance, mitigating risks, and keeping you headache free.
Contact us today at Eco Permit Pros and check SWPPP off your to-do list!
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