Camanche South Shore-Ebmud, CA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2025). 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.
About Camanche South Shore-Ebmud
Camanche South Shore-Ebmud serves about 111 people through 448 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Calaveras County, California. EPA system ID: CA0510012; phone on file: 209-772-8267. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 6.7 ppb from 6.7 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Camanche South Shore-Ebmud is 6.7 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 6.7 ppb |
| 2019 | 0 (not detected) |
| 2016 | 1.04 ppb |
Against other California systems
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. Camanche South Shore-Ebmud's reported as 0 (not detected) sits at the 20th percentile in California and the 10th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Calaveras County
18 other systems share Calaveras County; 9 of them have a higher latest lead result than Camanche South Shore-Ebmud. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ccwd - Ebbetts Pass | 11,545 | 1.85 ppb |
| Ccwd - Jenny Lind | 9,861 | 0 (not detected) |
| Calaveras Pud | 6,286 | 0 (not detected) |
| Ccwd - Copper Cove | 5,187 | 1.76 ppb |
| Blue Lake Springs Mut Wtr | 4,822 | 15 ppb |
| Union Public Utility District | 4,774 | 0 (not detected) |
| Angels, City Of | 3,836 | 0 (not detected) |
| Ccwd - West Point | 1,043 | 4.03 ppb |
| Valley Springs Pud | 900 | 0 (not detected) |
| Snowshoe Springs Assn. | 686 | 0 (not detected) |
Your move
Look up your address in Camanche South Shore-Ebmud'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 Camanche South Shore-Ebmud 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. A zero today does not rule out a jump later - the rules are tightening in 2027.