The City of Mill Valley Department of Public Works is updating a report that a sanitary sewer overflow (SSO) occurred the morning January 20, 2014 in the vicinity of Cascade and Molino Avenues. The overflow was triggered by a blockage in the sewer line that caused sewage to overflow into Old Mill Creek. City crews were able to capture and return most of the overflow to the sanitary sewer for proper disposal. Approximately 200 gallons of the overflow remained in the creek.
City crews responded quickly to mitigate and contain the overflow and remove the blockage. As a precaution signs have been posted in the area warning of the potential health hazard. The best way for people to protect themselves from possible negative health effects of exposure to untreated sewerage is to avoid water contact in Old Mill Creek while the warning signs are in place. City staff will continually test water quality indicators in the creek. Once the creek meets current safety standards the warning signs will be removed.
If you see an SSO, or if you have any questions, please contact: City of Mill Valley Department of Public Works 388-4033, or click here for more information.