Water testing in Merced County, CA
Lowest listed local program price: Free, Valley Water Collaborative.
Free Well Testing via Valley Water Collaborative
Free
Apply online at valleywaterc.org or call (209) 750-3867 to request free well water testing.
Who can use it: Subject to grant funding availability; applicant must qualify (specific qualification criteria not stated on the flyer).
Checked October 1, 2026. Official page · Report a change