American Valley Csd, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 0.3 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.
About American Valley Csd
American Valley Csd serves about 3,778 people through 1,621 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Plumas County, California. EPA system ID: CA3210004; phone on file: 530-283-0836. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2023 (1.1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for American Valley Csd is 1.9 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.3 ppb |
| 2023 | 1.1 ppb |
| 2020 | 0 (not detected) |
| 2017 | 1.9 ppb |
How American Valley Csd 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. American Valley Csd's 0.3 ppb sits at the 64th percentile in California and the 41st nationally (higher means more lead).
Other water systems in Plumas County
26 other systems share Plumas County; 9 of them have a higher latest lead result than American Valley Csd. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Chester Public U.D. | 2,187 | 0 (not detected) |
| City Of Portola | 2,100 | 2 ppb |
| Hamilton Branch Csd | 1,874 | 0 (not detected) |
| West Almanor M.W.C. | 1,464 | 0 (not detected) |
| Ivcsd-Greenville | 795 | 1.49 ppb |
| Graeagle Water Company | 737 | 0 (not detected) |
| Grizzly Lake Csd-Delleker | 657 | 0 (not detected) |
| Whitehawk Ranch Mwc | 540 | 0 (not detected) |
| Lake Almanor Country Club Mwc | 500 | 0 (not detected) |
| Plumas Eureka Csd | 334 | 0 (not detected) |
Next steps for Quincy, CA
Test your own tap with a certified lab first-draw sample; Quincy, 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 American Valley Csd 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.