Bloomfield Mun. Water Plant Did Not Meet Treatment Requirements
Our water system recently violated a drinking water standard. Although this was not an emergency, as our customers, you have a right to know what happened, what you should do, and what we did to correct this situation. We routinely monitor your water for turbidity (cloudiness). This tells us whether we are effectively filtering the water supply. Water samples for February 2014 showed that 16.0 percent of turbidity measurements were over 0.30 NTU (turbidity units) – the standard is no more than 5 percent of samples may exceed 0.30 turbidity units per month.
What should I do?
- You do not need to boil your water or take other actions. We do not know of any contamination, and none of our testing has shown disease-causing organisms in the drinking water.
- 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?
Turbidity has no health effects. However, turbidity can interfere with disinfection and provide a medium for microbial growth. Turbidity may indicate the presence of disease causing organisms. These organisms include bacteria, viruses, and parasites which can cause symptoms such as nausea, cramps, diarrhea, and associated headaches. These symptoms are not caused only by organisms in drinking water. If you experience any of these symptoms and they persist, you may want to seek medical advice.
What happened? What was done?
In late November of last year (2013) our backwash pump failed and had to be replaced. Because of the time of year and the difficulty in getting the old pump taken out for inspection and replacement, we did not produce any water at the treatment plant again until mid-February of this year (2014). When attempting to get back into operation after almost 2-1/2 months of being down, we had a few turbidity readings over .3 NTU, which is the allowable limit for turbidity in water being sent out to the system. In a short time we brought these readings back down within range, but as we operated for only 11 days out of a 28 day month, we had fewer days to average, and that made the few readings that were over put us below the 95% of readings under .3 NTU required in order not to be in violation for the whole month. Since the 23rd of February we have been below the .3 NTU limit and our water is currently leaving the plant at less than .1 NTU.
For more information, please contact Donna Grim or Lisa Hastings at 641-664-1317.
This notice is being sent to you by Bloomfield Mun. Water Plant PWSID#: 2613019
Date distributed: 4-20-2014.
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