SWPPP Guides, Permit Updates and State Requirements
Nationwide stormwater compliance guidance from Derek E. Chinners, CPESC — construction and industrial SWPPP requirements, permit filing steps, inspection schedules and state-by-state rules, updated as permits change. Not sure whether your project needs a plan? Take the 60-second SWPPP quiz.
Does Huntsville, Alabama Require a CBMPP for Construction?
Yes. Construction projects in Huntsville, Alabama that disturb one or more acres require coverage under the Alabama Construction Stormwater General Permit (ALR100000, April 1, 2026). That coverage requires a site-specific Construction Best Management Practices Plan...
What Does an Alabama Construction Stormwater Permit Cost in 2026?
Alabama's Construction Stormwater General Permit ALR100000 costs $1,000 base fee as of October 15, 2026, plus $100 per acre for projects disturbing 5 acres or more and priority-site fees of $100 plus $10 per acre when applicable, capped at $10,000 per permit...
Who Can Perform SWP3 Inspections in Texas, and How Often Does TXR150000 Require Them?
Under the 2023 Texas TPDES Construction General Permit TXR150000, inspections must be performed by personnel provided by the permittee who are knowledgeable about the permit, familiar with the construction site, and knowledgeable about that site's SWP3. No...
What Is an NPDES Stormwater Permit and How Do You Get One?
An NPDES stormwater permit is federal authorization under the Clean Water Act for specified stormwater discharges to waters of the United States. EPA or authorized states administer the program; the correct permitting authority depends on where the discharge occurs...
Indiana’s Construction Stormwater Permit Expires December 17, 2026: What Contractors Must Do
Indiana's Construction Stormwater General Permit INRA00000 expires December 17, 2026. Contractors must verify their project's individual five-year coverage term, submit renewal information or a new Notice of Intent ninety days before that project-specific...
TXR050000 Renewal Deadline Extended to December 28, 2026: How to File by Email While STEERS Is Down
The TCEQ TXR050000 Multi-Sector General Permit expired on August 14, 2026. TCEQ's 2026 MSGP took effect the same day, and every Texas facility holding a 2021 authorization must file a renewal Notice of Intent (Form INOI-R) or renewal No Exposure Certification (Form...
Delaware SWPPP Requirements: 2026 Compliance Guide for Contractors
Delaware requires a SWPPP for any construction project that disturbs one acre or more of land. Below that, any land disturbance of 5,000 square feet or more still requires an approved Sediment and Stormwater Management Plan, and that approved plan is your SWPPP....
Kentucky SWPPP Requirements 2026: KYR100000 Permit, eNOI Filing and Inspections
If you are disturbing one acre or more of land in Kentucky, you need a Stormwater Pollution Prevention Plan (SWPPP) and coverage under construction general permit KYR100000, which took effect January 3, 2025 and expires December 31, 2029. File the electronic Notice of...