Cache County is interested in pursuing aquifer storage and recovery (ASR) programs to store excess surface water in the Cache Valley principal aquifer. The City of Millville, located in a prime location for ASR, is having issues with elevated nitrate in the Glenridge well, a public water supply sourced from the Cache Valley principal aquifer. To initiate a small-scale ASR project and alleviate high nitrate, the city performed an initial injection and pumping test using the Glenridge well. Millville injected water from Garr Spring, another public water supply source of which they own water rights, into the Glenridge well for one week at a rate of 500 gallons per minute. Garr Spring water has an average nitrate concentration of 0.8 mg/l nitrate as nitrogen (Utah Division of Drinking Water, 2014). They then pumped the well while monitoring geochemistry to determine the effects on the Cache Valley principal aquifer system. Results of the test are preliminary and show decreased nitrate values in the Glenridge well. While the increase in potentiometric surface was not precisely measured, it is likely small and widespread due to the high transmissivity of the aquifer, which was determined to be 135,000 ft2/day (12,540 m2/day).