Drinking Water Concerns

Posted on 11/29/2018
UPDATE

Independent lab results confirm Casper’s water continues to be safe to drink.  Two sets of water samples, including samples from the house where a water concern originated, were taken on Wednesday, November 28, 2018.  The City of Casper sent one set to an independent lab and the other to the Central Wyoming Regional Water System lab.  All samples were negative for total coliform. 

 

On Monday, November 26, 2018, the City of Casper received a call from a concerned citizen whose household water tested positive for total coliform in a private test.  The presence of total coliform is an indicator that other potentially harmful fecal bacteria could be present.  City crews responded immediately and took water samples from that house and the surrounding area.  Some of the samples were positive for total coliform.  No water sample tested positive for fecal bacteria.  As a precautionary measure, crews flushed hydrants in the neighborhood and converted the neighborhood to a different pressure zone to increase chlorine residuals and water circulation.  The City of Casper sampled the water again on Wednesday, November 28, 2018.  At no time have test results indicated the tap water was not safe to drink.

 

To prevent stale water and avoid conditions conducive to producing coliform, it is likely that the neighborhood will stay on the alternate pressure zone until late spring or early summer when water demands are greater.  The City of Casper is serious about water quality and performs water quality tests weekly throughout the city throughout the year.  Citizens served by Casper water who have water concerns are urged to call the City.


Original Story:

On Monday, November 26, 2018, the City of Casper received a call from a concerned citizen who privately tested the water from their household. The water tested positive for total coliform.  The presence of total coliform is an indicator that other potentially harmful fecal bacteria could be present.  City crews responded immediately and took water samples from that house and the surrounding area.  The results of those samples were mixed, with some positive for total coliform and some negative.  No water sample tested positive for fecal bacteria.  As a precautionary measure, crews converted the neighborhood to a different pressure zone to increase chlorine residuals and water circulation.  The City of Casper sent additional samples to an independent lab on Wednesday, November 28, 2018.  Initial results indicate no issues with the water. However, conclusive results will be available this afternoon and shared with the community as soon as they become available.  At no time have test results indicated that the tap water is not safe to drink.  The City continues to take water quality seriously and performs water quality tests weekly throughout the city throughout the year. The City will continue to release information as it becomes available.