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Chester Progressive legal notices for the week of 1/15/2014

Water quality notice
IMPORTANT INFORMATION ABOUT YOUR DRINKING WATER
Tests Showed Coliform Bacteria in the
Chester PUD Domestic Water System
Our water system recently violated a drinking water standard. Although this incident was not an emergency, as our customers, you have a right to know what happened and what we did to correct the situation.
We routinely monitor for drinking water contaminants in the water system. During September 2013, we collected twelve samples from our water system to test for the presence of coliform bacteria. Five of these samples showed the presence of coliform bacteria. During October 2013, we collected seventeen samples from our water system to test for the presence of coliform bacteria. Five of these samples showed the presence of coliform bacteria. The standard is that no more than one sample per month may show the presence of coliform bacteria.
What Should You Do?


You do not need to boil your water or take other corrective actions. However, if you have specific health concerns, consult your doctor.
People with severely compromised immune systems, infants, and some elderly may be at
increased risk. These people should seek advice about drinking water from their health care providers. General guidelines on ways to lessen the risk of infection by microbes are available from EPA's Safe Drinking Water Hotline at 1 (800) 426-4791.
What Does This Mean?
This is not an emergency. If it were, you would have been notified immediately. Coliform bacteria are generally not harmful themselves. Coliforms are bacteria which are naturally present in the environment and are used as an indicator that other, potentially-harmful, bacteria may be present. Coliforms were found in more samples than allowed and this was a warning of potential problems.
Usually, coliform bacteria are a signal that there may be a problem with our source of supply, storage, or distribution systems. Whenever we detect coliform bacteria in any sample, we do follow-up testing to see if other bacteria of greater concern, such as fecal coliform or E. coli, are present. We did not find any of these bacteria in our subsequent testing, and further testing shows that this problem has been resolved.
What Happened? What Was Done?
In mid-September 2013, a routine sample collected from the distribution system was found to contain total coliform bacteria. After repeat samples confirmed the presence of the bacteria, we tested our well sources and inspected our storage tanks and found no obvious signs of contamination. We then began flushing the distribution system in order to eliminate the contamination. We continued to flush the system through the month of October 2013, but could not eliminate the bacteria through flushing alone. The levels of total coliform bacteria found in the distribution system were at the lowest level detectable. On November 5, 2013, the District disinfected the entire distribution system, including the storage tanks. This appears to have eliminated the contamination since all bacteriological samples collected since then have been absent of total coliform bacteria.
For more information please contact Andy Capella, Chester Public Utility District at 258-2171.
Joe Waterman
General Manager
Chester Public Utility District
This notice is being provided to you in compliance with the California Domestic Water Quality and Monitoring Regulations as a means of keeping the public informed.
Published CP
Jan. 15, 22, 2014|


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