A Review of the Hollis Stormwater Management Ordinance

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 NOIs,
  SWPPPs 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?