Iowa D-N-R officials say the bacterial contamination from a broken sewer main in the Ventura Heights Park area of Clear Lake appears to be contained to that area and didn’t spread. DNR environmental specialist Jeff Van Steenburg says a water sample taken from a dock close to the spill measured 36-hundred for e-coli bacteria, while a water sample 25 yards away only measured 200. A sanitary sewer force main broke Tuesday morning, allowing about 45-thousand gallons of untreated wastewater to spread over the park and flow into Clear Lake. Other test results were released for the rest of the lake Thursday, with Clear Lake State Park, McIntosh Woods State Park, and City Beach all testing well below the e-coli bacteria standards. The DNR will keep the park closed until the results of another set of tests comes back later today.
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