1. A Review of the Hollis Stormwater Management Ordinance Todd H. Dresser, CHMM Cuoco & Cormier Engineering Associates

2. Regulatory History of Stormwater Management: In 1992, Phase I of the National Pollutant Discharge Elimination System enacted under the federal Clean Water Act. NPDES establishes stormwater permitting & treatment standards. Applies to: 1) construction sites involving 5+ acres, 2) certain industrial activities, and 3) large municipalities.

3. Phase I Requirements: Regulated entities must complete the following: –File Notice of Intent with EPA to obtain a discharge permit. –Prepare a Stormwater Pollution Prevention Plan (SWPPP). –Conduct routine site inspections.

4. Phase II of NPDES Implemented in March 2003 Significantly increases the number & types of facilities covered by federal stormwater regulations. The following activities are now regulated: –Construction disturbing 1 acre. –More manufacturing/industrial facilities. –All municipal drainage systems within ‘Urbanized Areas’.

5. The Meaning of Phase II Regulated municipalities are required to: –Provide public education. –Seek public participation. –Locate & eliminate illicit discharges. –Establish stormwater controls for construction. –Establish post construction stormwater controls. –Initiate good housekeeping & pollution prevention practices at municipal facilities.

6. Proposed Ordinance Mirrors Existing Federal Requirements Regulated developers & industrial facilities would be required to submit copies of NOI’s, SWPPP’s & inspection reports required by Phase I & II to the Town. The ordinance enables the community to investigate & address drainage problems that if left unabated could create liability concerns for the town.

7. Local Modifications to the Regulations The regulated entities are required to submit all NPDES records to the Town. Industrial facilities would be required to conduct quarterly inspections instead of semi-annual inspections. The regulation grants the Town the authority to take action against failing drainage systems. The ordinance applies to the entire town.

8. Benefits of Ordinance Protects local aquifer & resource areas. Enables the staff to focus attention on problem sites. Achieves regulatory compliance.

9. Questions or Comments?