The City of North Liberty Water Department produces, on average, 1.25 million gallons per day, with a peak daily flow of about 2 million gallons per day. We take pride in producing clean water for drinking, fire protection and industrial use. Our current system capacity is approximately 2.76 million gallons per day, 1.56 for the treatment plant and 1.2 million gallons per day from an aquifer storage recovery well. To keep up with the needs of a growing North Liberty, we’ll break ground on a new water treatment plant, with updated filtration technology, and additional wells in 2016.

If you have a water emergency, you can page the department’s on-call staff 24 hours a day at (319) 341-6986.

Well Supply

North Liberty gets its water from four Silurian aquifer wells and from three Jordan aquifer wells. Approximately 75% of the water is produced from the Jordan aquifers. We pump approximately 750 gallons per minute from our two Jordan wells. On average the Jordan wells run 8.4 hours per day. The Silurian wells can pump from 100 to 175 depending on which well is operating. The four Silurian wells are alternated daily with the Jordan wells for blending purposes.

Our third Jordan aquifer well is an 39-million-gallon aquifer storage recovery, or ASR, well. It allow us to operate at full capacity and store excess water during low-use periods. We can then recover about 800 gallons of per minute during peak usage.

Water Towers

Two variable-speed (high service) pumps replenish the water towers on demand. These pumps were part of a recent plant upgrade and are capable of producing over 1,000 gallons per minute. The pumps are alternated on a weekly basis so only one runs at a time.

The two water towers can hold 1.4 million gallons of water when full. A 400,000-gallon tower is located on 240th Street, with a 1-million-gallon tower located on Kansas Avenue.

Water Quality Reports

We monitor daily for water quality at the Water Treatment Plant as well as have our water analyzed on a regular basis through the University of Iowa Hygienic Laboratory. Water quality is our first priority.

2016 Water Quality Report (PDF)
2015 Water Quality Report (PDF)

2014 Water Quality Report (PDF)

2013 Water Quality Report (PDF)
2012 Water Quality Report (PDF)
2011 Water Quality Report (PDF)
2010 Water Quality Report (PDF)
2009 Water Quality Report (PDF)
2008 Water Quality Report (PDF)
2007 Water Quality Report (PDF)
2006 Water Quality Report (PDF)
2005 Water Quality Report (PDF)

The State of Iowa requires cities with populations above 15,000 to have a backflow prevention program with a containment system to protect the quality of drinking water from the time it leaves the water treatment plant until it reaches the consumers. Read our policy, adopted in June 2017.