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Muddy Creek is getting better

NORTH LIBERTY– After years of assessments, recent data collected by the Iowa Department of Natural Resources indicates that the quality of North Liberty’s Muddy Creek continues to improve, and that the outflow from the treatment plant is benefiting the creek.
The North Liberty City Council approved an $8.4 million Water Pollution Control Facility expansion in April 2007. The membrane bio-reactor (MBR) plant produces a super-clean outflow unmatched by normal wastewater treatment facilities.
“As someone who has been involved in all the assessments that have been done on Muddy Creek over the years, I have seen a marked improvement in the in-stream habitat and overall water quality,” said Todd Hubbard, a Limnologist at the University of Iowa State Hygienic Lab.
Prior to North Liberty’s new wastewater plant, in-stream conditions weren’t ideal for the fish community or the creek. The MBR treatment process is the most advanced wastewater treatment process in the world, and North Liberty’s facility is the first MBR treatment plant in Iowa. Since the plant went online in 2008, it has produced 99.9 percent removal of all pollutants listed on the treatment plant’s IDNR permit.
Dave Ramsey, Plant Superintendent, said a recent IDNR inspection report stated, “We checked the plant outfall to Muddy Creek. The plant effluent was clear, while the creek itself was muddy and turbid.”
For updates and information visit http://northlibertyiowa.org/ or contact City Hall at 626-5700.