Calhoun Utility, CA

Lead detected, under the action levels

Latest 90th-percentile lead: 0.8 ppb (monitoring period 2024-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.

Who runs the water here

Calhoun Utility serves about 213 people through 71 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Long County, California. EPA system ID: GA1830017; phone on file: 916-871-0552. They can tell you what your service line is made of and whether they pay to replace it.

Calhoun Utility's lead record

Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Calhoun Utility is 0.8 ppb across 2 monitoring periods, none of them over 15 ppb.

How Calhoun Utility compares

Of the 2,884 California systems with a lead result, the median latest reading is 0 ppb; 30 are over 15 ppb right now and 215 have gone over at some point. Calhoun Utility's 0.8 ppb sits at the 68th percentile in California and the 48th nationally (higher means more lead).

Your move

Test your own tap with a certified lab first-draw sample; Diamond Springs, CA may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Calhoun Utility whether it covers that cost before hiring anyone - many utilities now do.

These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.