Washington County Water Testing
Private well water users should test their water annually for nitrates and coliform bacteria. Testing numbers for Washington County, Minnesota, have been relatively low (fewer than 200 per year) and stagnant relative to the 10,000 wells in the county. To test the quality improvement (QI) initiative chosen, the QI team targeted a specific community to try to increase testing rates. Baseline testing data for the city of Grant showed an average of about 7 tests per year before the QI initiative. For the test period, the number of tests increased to 30 (an increase of more than 300%). An unintended consequence of the QI initiative in Grant also resulted in an increase in county-wide testing—an additional 21%. To be cost neutral on printing and mailing costs to send water testing kits, a minimum of 30 additional kits needed to be processed. The actual number of additional kits processed during the test was 45 (50% increase).
Souter, S. Public Health Quality Improvement Exchange. Washington County Water Testing. Tue, 10/10/2017 - 11:35. Available at https://www.phqix.org/content/washington-county-water-testing. Accessed February 24, 2018.