Updates
Follow along as we build out the directory. New states, features, and data improvements — all logged here.
SEO improvements — sitemap, OpenGraph tags, and structured data
FeatureAdded a sitemap.xml covering all 50 state pages, local jurisdiction pages, and static routes so search engines can discover and index the full directory. Added OpenGraph and Twitter card meta tags to all pages so links shared in Slack, LinkedIn, or elsewhere show rich previews. Added JSON-LD structured data (WebSite schema on every page, BreadcrumbList on state and local detail pages) to help Google understand page structure and improve search result presentation.
Certification page accuracy improvements — community corrections
CommunitySeveral corrections to the Inspector Certification Lookup page based on community feedback. CISEC's full name was corrected to 'Certified Inspector of Sediment and Erosion Control' (was incorrectly listed as 'Certified Inspector of Stormwater Equipment & Compliance'). Certifying organizations were also corrected: CPESC and CESSWI are issued by EnviroCert International, and CISEC is issued by Ecopliant CISEC — not IECA as previously shown. Additionally, states that only require a 'qualified person' knowledgeable in E&SC principles no longer display national cert badges, since those credentials are not named in permit language for those states. A note was added clarifying that in no-cert-required states, training provider certificates may serve as reasonable evidence of qualification.
Utah regulation data updated — community corrections
CommunityMajor update to Utah's stormwater construction permit data based on community feedback. Key corrections: permit number updated from UTR300000 to UTRC00000 (effective July 1, 2024), NOI submission now goes through EPA's CDX portal ($150 fee) instead of the former state-specific UEP system, inspection rain trigger corrected to ≥ 0.50 inches (was unspecified), and added the new Utah Registered Storm Water Inspector (RSI) credential. Also incorporated Utah Code § 19-5-108.3 (HB 507, effective January 1, 2025), which standardizes SWPPP review timelines: 14 business days for initial review, 5 business days for re-review.
Agency Contacts Directory
CommunityAdded a dedicated Agency Contacts page listing stormwater construction permit program contacts for all 50 states — including named contacts, direct phone numbers, email addresses, and links to agency contact pages where available. No more digging through agency websites to find the right person to call. Suggested by a community member.
Mobile-friendly Contacts layout
ImprovementThe Agency Contacts page now uses a card-based layout on mobile instead of a wide table. Each card shows the state name, agency, named contact, and tappable phone and email links — making it easy to call or email directly from your phone.
Impaired Waterbody / TMDL Flags
FeatureEvery state detail page now includes an Impaired Waterbody / TMDL Requirements section. States with permit-specific heightened conditions — such as California's Numeric Effluent Limits for impaired receiving waters, Pennsylvania's Enhanced E&S requirements for HQ/EV watersheds, New Jersey's Category One water protections, and Washington's 303(d) BMP requirements — are flagged with an 'Elevated Risk' badge. States where standard provisions apply are noted as such. A compliance risk many contractors miss.
Quick Summary on every state page
FeatureEach state detail page now opens with a 2–3 sentence plain-English overview of what the permit program requires — permit name, SWPPP, inspector credentials, and any state-specific quirks. Useful for getting your bearings before diving into the full details.
Inspector Certification Lookup
FeatureNew page at /certifications surfaces the inspector certification data that was already in our database but buried inside state detail pages. Browse all 50 states by certification requirement level, filter by national credential (CPESC, CESSWI, CISEC, CESCL, QSP/QSD), and quickly see which states have state-specific credentials vs. accepting national certs.
Local jurisdiction data — California, Florida, and New York
DataAdded local stormwater regulations for 32 new jurisdictions across three states: 12 in California (LA, SF, San Diego, San Jose, Sacramento, Oakland, Fresno, Long Beach, Riverside, San Bernardino, Anaheim, LA County), 11 in Florida (Miami, Jacksonville, Tampa, Orlando, St. Petersburg, Fort Lauderdale, Hialeah, Cape Coral, Tallahassee, Miami-Dade County, Broward County), and 9 in New York (NYC, Buffalo, Yonkers, Rochester, Syracuse, Albany, Nassau County, Suffolk County, Westchester County).
CSV export for comparisons
FeatureYou can now export any state or local jurisdiction comparison as a CSV file. Great for sharing with your team or dropping into a report.
Permit expiration dates for all 50 states
DataEvery state now has a permitExpires date so you can see when the current Construction General Permit is up for reissuance. Expiry alerts are now fully functional.
All state verifications refreshed to March 2026
DataRe-verified regulation data for all 50 states and updated the lastVerified date. Previously 38 states were stale at January 2025.
Feedback form backend connected
ImprovementThe corrections form now submits to a server-side API endpoint, so it works even without Formspree configured. No submissions are lost.
Updates page launched
FeatureAdded this updates page so you can follow along as we build out the directory. Bookmark it and check back to see what's new.
AI chat assistant added
FeatureYou can now ask questions about stormwater regulations using the chat widget in the bottom-right corner. It's powered by Claude and knows the full directory dataset.
Side-by-side state comparison
FeatureCompare permit thresholds, SWPPP requirements, inspection frequencies, and discharge standards between any two states on a single page.
Local jurisdiction data — Texas pilot
DataStarted adding city- and county-level stormwater regulations. Texas is the first state with local data including Austin, Houston, Dallas, San Antonio, and Fort Worth.
Feedback and corrections form
ImprovementAdded a way for industry professionals to submit corrections or updates to regulation data. If something looks wrong, let us know.
All 50 states loaded
DataEvery U.S. state now has a regulation profile in the directory covering construction permits, SWPPP requirements, inspection schedules, and discharge standards.
Directory launched
FeatureInitial launch of the Stormwater Regulation Directory with searchable state grid, detailed state profiles, and verified-status tracking.