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Southeast Metro
Stormwater Authority (SEMSWA)



Mission:  SEMSWA provides Stormwater Management services essential to the protection, preservation and enhancement of our neighborhoods, community and natural resources through:

  • Flood Control
  • Water Quality
  • Construction
  • Maintenance
  • Education

For more information on SEMSWA, please explore this website as well as our 2010 Annual Report.


Small Area Map
Click image to view map
SEMSWA was formed in 2006 by an Intergovernmental Agreement among the following entities:
  • City of Centennial
  • Arapahoe County
  • Arapahoe Water and Waste Water Authority
  • East Cherry Creek Valley Water and Sanitation District
  • Inverness Water and Sanitation District

PROJECT SPOTLIGHT: 

Cherry Creek Valley Ecological Park Drainage Improvements


The Southeast Metro Stormwater Authority (SEMSWA), the Urban Drainage and Flood Control District (UDFCD), Arapahoe County Open Space and the Cherry Creek Basin Water Quality Authority (CCBWQA) would like to announce that a stream reclamation project design is uderway for construction of drainage improvements along the Cherry Creek corridor.  The intent of the project is to repair erosion in the active Cherry Creek channel that has been caused by urbanization from surrounding areas.  The project improvements will:

  • Preserve and enhance drainage, wildlife, and recreational benefits
  • Protect and enhance water quality
  • Maintain the natural qualities of the corridor

Please see the link below to view the Public Notice for channel work in Cherry Creek and Happy Canyon Creek, located in Arapahoe County, COlorado.  Within the notice are details on how to provide comments.

http://www.nwo.usace.army.mil/html/od-tl/pn/tlpublicnotices.html


NEWS: 

SEMSWA receives American Public Works Association (APWA) CO Chapter Awards!


   WINNING PROJECTS

   Title:  Annual Utility Boring Permit Program
   Category:  Public Works Administration

   Title:  IKEA Centennial
   Category:  Sustainable Design and Construction Management

   Title:  Integrating Stormwater Pipeline Video Into Asset Management
   Category:  Facilities Management and Maintenance

   Title:  Stormwater Project and Land Development Tracking System
   Category:  Building Code, Administration, Permitting, and Enforcement


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Manuals & Templates

  
Mapping

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   Project Bids

   RFPs

   SEMSWA Projects

   Stormwater Basics

   Water Quality Info
 

 


Report a Problem
 
Foam In The Creek
Some foam or suds in the stream is natural, especially as snowmelt runoff occurs in the spring. When aquatic organisms, such as algae, die and begin to decompose, fatty acids are produced. These fatty acids are very similar to those found in common soap products. Aeration of the water as it cascades over rocks causes the fatty acids to form foam, often accumulating along shorelines and river banks, and in coves and eddies.

Foam is generally white in color, breaks down relatively quickly, and smells like fish or earth. Foam from silt or erosion is usually a dirty brown color. In contrast, foam from detergent will have a noticeable perfume smell from the additives which give your wash a fragrant scent. Natural foam is often seen in early morning and is usually gone by midday.

If you see foam in the stream that looks like bubble bath, has a perfume scent and doesn't break apart easily, detergent may be in the stream. If so, please notify SEMSWA, 303-858-8844, or Arapahoe County Sheriff’s dispatch during non-business hours.

Flood Damage
VIEW VIDEO Click on the image above to view a video of flooding within the Authority area (2 MB)

76 Inverness Dr. E. Englewood, CO 80112 - Phone:  303-858-8844 - Fax: - Email: semswamain@semswa.org