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Posted: June 25, 2008 Well 29 – Water quality issues have been a problem at Well 29 since its start-up in 2005. Naturally occurring iron and manganese occur at levels that can discolor the water yellow, orange, or brown. Although not at a level that causes a health concern, the water can stain laundry and plumbing fixtures. As a result, the utility will be installing a filter to remove these minerals. The filter is expected to begin operation in summer 2009. In the meantime, Unit Well 29 operates on stand-by from June through September. Stand-by assures its availability for fire fighting or other water emergency during summer months. During stand-by operations, Well 29 water is delivered to the distribution system on Mondays from 8 a.m. to noon and Thursdays at 10 p.m. to 2 a.m. Friday. The utility asks that customers who might receive Well 29 water to avoid doing laundry during or after these time periods to reduce the risk of stained laundry. Click here to see if Well 29 serves your home or business. Well 10 - The Water Utility had planned to operate Well 10 on reserve supply beginning July 1. However, due to lower than normal water demand, the Water Utility has decided to postpone the start-up of Well 10. Water Utility staff will periodically review water demand trends and assess the conditions under which Well 10 would be brought into reserve supply status. Updates will be posted to the Drinking Water Quality listserv. While under the designation of reserve supply, utility staff visits the well weekly to maintain its readiness in the event of an emergency. Under these conditions, Well 10 water is not pumped into the distribution system. Instead, the reservoir is drained to the storm water sewer and new water is pumped into the reservoir. Well 3 - Formerly located on the near east side, Well 3 was permanently abandoned in April 2008. The oldest well in the Madison water system, Well 3 produced water with high levels of iron and manganese. In addition, it was the only Madison well in which carbon tetrachloride was detected. A test result for carbon tetrachloride of 6.2 parts per billion (ppb), higher than EPA’s maximum contaminant level (MCL) of 5 ppb, lead the Utility to take the well off-line. The well was permanently shutdown in September 2006 prior to its abandonment earlier this year. |
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