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Friday, 14 July 2017 14:48

Rock County officials issue water quality advisory for Yahara, Rock rivers

Written by  CSI Media Staff

Recent surface water testing by the Rock County Public Health Department has indicated high levels of E. Coli bacteria in the Yahara River and the Rock River from Indianford to Beloit, according to a release from the Rock County Public Health Department.

The July 12 testing found high E. Coli levels in the Yahara River at Stebbinsville and Murwin Park in Fulton, and the Rock River at Traxler Park in Janesville and Preservation Park in the town of Beloit.

Other locations sampled in Rock County this week included Lake Koshkonong and Clear Lake, both of which were below health advisory levels, according to the release.

The high levels of E. Coli bacteria mean swimmers and others playing in the river could become ill if they ingest surface water.

Officials say recent rains may have led to water runoff that’s contributing to the high bacteria levels.

Current Rock County beach and surface water sampling information can be found at   For more information, you can contact the Rock County Public Health Department at 757-5440 or 364-2010.


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