LOUISA COUNTY, Iowa -- The Iowa Department of Natural Resources says they are investigating a hog manure spill into a Louisa County creek following a pumping incident.

According to the Iowa DNR, the DNR Washington Field Office was notified of a manure pill into a road ditch near Q Avenue and 65th Street in Louisa County. Catnip Ridge, a certified mature applicator business, had been working in the area and notified them of the spill.

Upon investigation, Iowa DNR staff found that an iron fence post went unnoticed in the tall vegetation when applicators were deploying an umbilical line. During pumping, the line wore on the fence post, causing a tear which released mature into the ditch, which then flowed into a tributary of Roff Creek.

The Iowa DNR says it is unknown how much manure was r

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