EPA v. Nassau County - MS4

Case summary

On December 13-14, 2016, EPA R2 and an EPA contractor, PG Environmental, conducted a Municipal Separate Storm Sewer System (MS4) audit of the Nassau County MS4. As a result of the audit, EPA identified that the County was not complying with the NYSDEC SPDES MS4 General Permit. Violations include but are not limited to: failure to update and fully implement the Stormwater Management Program (SWMP) Plan; failure to conduct a complete outfall reconnaissance inventory (ORI); failure to maintain an inventory of post-construction stormwater management practices and ensure long-term operation and maintenance of those practices; failure to implement a pollution prevention / good housekeeping program that addresses municipal operations and facilities; failure to perform self-assessments of all municipal operations and facilities; and failure to conduct employee training. EPA is issuing an Information Request and Administrative Compliance Order to require the County to comply with the terms and conditions of the NYSDEC MS4 General Permit.

Defendants (1)

• Nassau CountyNamed in settlement

Facilities (1)

• NASSAU MS4 STORM SEWERS

  COUNTY-WIDE, MINEOLA, NY, 11501

  Registry ID: 110019657735

Statutes cited

• CWA 301/402 — NPDES Permit Violations

Enforcement conclusions (1)

• Nassau County - MS4entered 2017-10-16

  Primary law: CWA

Timeline (2 milestones)

• 2017-10-16Final Order Issued
• 2017-12-05Enforcement Action Data Entered