EPA Clean Water Act Stormwater Construction Site NOV Response

The situation

Dave, 44, owns a small residential homebuilding company in Tennessee, DLB Homes LLC, that builds 15–20 spec homes per year on sites ranging from 1 to 4 acres. In January 2026, the Tennessee Department of Environment and Conservation (TDEC) inspector visited one of Dave's active construction sites during a routine watershed inspection.

Three weeks later, Dave received a TDEC Notice of Violation citing five violations under Tennessee's General NPDES Permit for Construction Activities (CGP equivalent):

1. SWPPP not updated to reflect change from silt fence to sediment basin (Permit Condition II.A.3) 2. Weekly inspection not conducted for weeks of January 5 and January 12 (Permit Condition II.B.1) 3. Post-storm event inspection record missing for the January 9 rain event (> 0.25 inches) (Permit Condition II.B.2) 4. Corrective action for eroded slope stabilization not documented in SWPPP within 7 days (Permit Condition IV.B) 5. Secondary containment for fuel storage not established (Permit Condition II.C.4)

TDEC proposes a $24,000 penalty. Dave has 30 days to respond.

What Dave doesn't know: (a) All five violations are documentation/administrative in nature, no actual discharge to a waterway occurred. Under EPA's Clean Water Act Penalty Policy, absence of actual discharge is a significant mitigating factor. (b) He corrected all five deficiencies the day after the inspection. Demonstrating prompt correction and good faith is the primary penalty mitigation argument. (c) As a small business (< $5M annual revenue), Dave qualifies for economic ability-to-pay consideration. (d) A well-structured response demonstrating immediate correction + no actual harm + small business status can realistically settle for $4,000–$8,000.

Who receives this

Small construction site operators receiving NPDES/CGP stormwater NOVs: residential homebuilders (< 50 units/year), small commercial contractors (< $25M revenue), small land developers. Primary states: Tennessee, Georgia, Florida, Texas, California, Pennsylvania, Ohio, states with active state-authorized NPDES stormwater enforcement programs. Secondary: general contractors receiving EPA regional office NOVs (federally authorized states: Idaho, Massachusetts, New Hampshire, New Mexico).

Why the agency will not advise you

EPA/state NPDES agencies cannot advise construction operators on how to structure their corrective action plan or argue penalty mitigation. SWPPP preparation firms (land surveyors, environmental engineers, environmental consultants) prepare the plan before construction but do not offer NOV response services, those are viewed as legal/compliance matters outside their scope. The 2022 CGP increased documentation requirements significantly compared to prior permits, generating a wave of first-time violations for operators who were compliant under the old CGP standards.

Key facts, with sources

• EPA's 2022 Construction General Permit (CGP), effective February 2022 and widely adopted through 2022–2023, introduced updated requirements for BMP inspection frequency (weekly + after rain events > 0.25 inches), documentation standards, and turbidity limit benchmarks. EPA and state environmental agencies issue thousands of Notices of Violation annually for stormwater permit violations at construction sites. Clean Water Act Section 309 civil penalties can reach $37,500 per day per violation; Section 311 spill penalties reach $58,328 per barrel. Small construction site operators (general contractors, homebuilders, developers with sites < 50 acres) are the primary recipients of construction stormwater NOVs, they lack the environmental compliance staff of large developers. Source: EPA Construction General Permit 2022 — EPA NPDES · Construction General Permit Frequent Questions — EPA · NPDES Stormwater Rules and Notices — EPA
• Construction stormwater violations are among the most common Clean Water Act enforcement actions against small businesses. EPA's enforcement data shows thousands of NOVs issued annually across construction, industrial, and municipal stormwater programs. State-authorized NPDES programs (45 states plus DC administer their own NPDES programs) issue the majority of construction stormwater NOVs. The most common NOV-triggering violations under the 2022 CGP: (1) SWPPP not updated after site conditions changed or BMPs failed (CGP Part II.A); (2) BMP inspection not conducted within 24 hours of storm events > 0.25 inches (CGP Part II.B.1); (3) Corrective action not documented and SWPPP not amended within required timeframes (CGP Part IV); (4) eNOI (electronic Notice of Intent) not filed before construction began (CGP Part I.B); (5) Turbidity benchmark exceedance without corrective action documentation (CGP Appendix A). Source: NPDES Electronic Reporting for EPA General Permits — EPA · Clean Water Act Penalty Policy — EPA Office of Enforcement

When to bring in a professional

Self-serve responses fit routine cases: clear facts, amounts a business can absorb, and a deadline still ahead of you. Bring in a licensed professional when the amount at stake is large relative to their fee, the facts are genuinely disputed, criminal exposure is possible, or the deadline has already passed. A short paid consultation to sanity-check your plan is often worth it even when you handle the filing yourself.

All sources for this guide

1. EPA Construction General Permit 2022 — EPA NPDES
2. Construction General Permit Frequent Questions — EPA
3. NPDES Stormwater Rules and Notices — EPA
4. NPDES Electronic Reporting for EPA General Permits — EPA
5. Clean Water Act Penalty Policy — EPA Office of Enforcement