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 2011 Annual Report.
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
NOTICE: Updated Floodplain Permit Now Available
Effective March 25, 2013
For all projects in the City of Centennial. Effective March 25, 2013
The Southeast Metro Stormwater Authority is pleased to announce a revised permit structure for Directional Boring associated with Utility Installation. In an effort to streamline the permitting process, an Annual Permit for Direction Boring will be effective for qualifying projects as of July 1, 2012. Project Owners can apply for an Annual Permit and obtain authorization to conduct the activity without an individual permit. Click here for more information on the Annual Permit, or email questions to semswamain@semswa.org or call the Water Quality Department at 303-858-8844. For general information on SEMSWA GESC Plan and Permit Requirements, please click here.
NEWS:
SEMSWA, UDFCD, and CH2MHill have launched a new website to help address the balancing of sediment in Piney Creek. Please click the link below to access the site and learn more about efforts in Piney 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.
VIEW VIDEOClick 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
