Stormwater and water quality
Stormwater management, discharge permits, sewage planning and water quality certifications. What changed, the rules that apply and the dates ahead for projects in New Jersey, New York, Connecticut and Pennsylvania.
Latest briefings
- MediumFairfield County, CT
Connecticut appeals court affirms ruling that Wilton sewer authority acted arbitrarily in denying 70-unit project
On May 26, 2026 the Appellate Court affirmed a judgment that Wilton's sewer authority acted arbitrarily in denying a 70-unit project, because its capacity finding rested on a hypothetical flow and the applicant had no chance to respond to its ownership objections. The matter was remanded for approval with conditions.
- MediumConnecticut
Connecticut reissues dewatering and cleanup wastewater permit; new sites must apply 180 days before discharging
The state's general permit for dewatering and remediation wastewater took effect March 1, 2026 and runs to February 28, 2031. New sites apply 180 days before discharge and file coastal, wildlife and treatment documents. A related draft general permit was withdrawn on July 15, 2026.
Rules 6
- Federal · 33 U.S.C. 1341; 40 CFR Part 121State water quality certification of federal permits (Section 401)
- Connecticut · C.G.S. 22a-430b; Commercial Stormwater GP (2025)Commercial stormwater permit for large paved sites
- Connecticut · C.G.S. 22a-430b; Construction Stormwater GP (2026)Construction stormwater general permit
- Connecticut · C.G.S. 22a-430b; Industrial Stormwater GP (2025)Industrial stormwater general permit
- Connecticut · C.G.S. 22a-430, 22a-430b, 22a-438; 2025 pretreatment GPsPretreatment permits for discharges to sewer
- Connecticut · C.G.S. 22a-430(g), 22a-438, 19a-36; PA 23-207Septic and small sewage system permits