NPDES
On February 16, 2007,
Cowlitz County was issued a National Pollution Discharge
Elimination System (NPDES) phase II Municipal Stormwater Permit.
This permit requires the County to develop and implement a
Permit. This permit requires the County to develop and
implement a Stormwater Management Program to reduce Management
Program to reduce stormwater runoff and pollution. The
area affected by the permit is the unincorporated urban area of
Cowlitz County adjacent to the cities of Longview and Kelso.
The areas affected by the permit are shown in green on the map
below runoff and pollution. The area affected by the
permit is the unincorporated urban area of Cowlitz County
adjacent to the cities of Longview and Kelso. The areas
affected by the permit are shown in green on the map below.
Click Here to view Map
Stormwater Management
Plan - 2012 Update
Ordinance Forming Stormwater Utility
Resolution Setting Utility Rate
The Cowlitz
County Stormwater Management Program is focused on six minimum
measures to increase public awareness and Management Program is
focused on six minimum measures to increase public awareness and
stormwater stewardship. The six minimum measures
include: stewardship. The six minimum measures include:
1. Public
Education and Outreach
2. Public Involvement and Participation
-
Seek public
comments on the Stormwater Management Plan
-
Citizen Stormwater
Advisory Committee
-
Engage citizen volunteer groups (Workshops,
Stream Cleanups)
-
School Programs
3. Illicit Discharge Detection and Elimination
- Implement
regulations to prohibit illicit discharges.
- Develop program to
detect and address non-stormwater discharges
- Establish a hotline to report illicit discharge
activities
- Map the stormwater
conveyance system with outfall locations
To Report:
Spills and
dumping into surface waters or storm drains or Illicit sewer and
waste water connections to the stormwater drainage system,
Call the Cowlitz County Department of Public Works at
360-577-3030 or the Water Pollution Hotline at 360-578-0900 OR
report spills and/or dumping
here.
IDDE Ordinance
4. Construction Site Stormwater Control Measures
- Implement
regulations on erosion and sediment control.
- Site plan review procedures
- Adopt portions of the
2005 Western Washington Stormwater Manual or an
equivalent
§
5. Post Construction Stormwater Control Measures
- Implement
regulations on runoff quality and quantity.
- Affect new development and redevelopment
- Structural and non-structural Best Management
Practices
- Long term maintenance of Best Management
Practices
- Site inspection & enforcement procedures
§
6. Pollution Prevention and Good Housekeeping for
Municipal Operations
- Develop and
implement an operation and maintenance program to
reduce runoff pollutants from municipal operations.
- Equipment
and material storage
- Street
sweeping
- Litter
pickup
- Fleet maintenance areas
- Employee education and training programs
