Camrosa Water District, CA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2027). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Camrosa Water District serves about 32,700 people through 9,102 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Ventura County, California. EPA system ID: CA5610063; phone on file: 805-256-3318. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Camrosa Water District is 5.3 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2027 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 5.3 ppb |
How Camrosa Water District 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. Camrosa Water District's reported as 0 (not detected) sits at the 57th percentile in California and the 39th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Ventura County
67 other systems share Ventura County; 6 of them have a higher latest lead result than Camrosa Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Oxnard Water Dept | 200,232 | 0 (not detected) |
| Ventura Water Department | 112,285 | 0 (not detected) |
| Ventura Wwd No. 8 - Simi Valley | 94,736 | 0 (not detected) |
| Cal American Water Co | 66,809 | 3 ppb |
| City Of Thousand Oaks Water Department | 54,770 | 0 (not detected) |
| Camarillo Water Dept | 47,701 | 0 (not detected) |
| Golden State Water Company - Simi Valley | 45,086 | 6 ppb |
| Ventura Cwwd No. 1 - Moorpark | 35,514 | 0 (not detected) |
| City Of Santa Paula | 31,786 | 0 (not detected) |
| Port Hueneme City Water Dept | 21,582 | 0 (not detected) |
Your move
Look up your address in Camrosa Water District's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Camrosa Water District 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Small systems behave differently: why small systems go over more often.