Awa, Ione, 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.
Awa, Ione at a glance
Awa, Ione serves about 7,227 people through 2,399 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 surface water, in Amador County, California. EPA system ID: CA0310002; phone on file: 209-257-5284. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Awa, Ione's lead record
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Awa, Ione is 0 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
How Awa, Ione 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. Awa, Ione's reported as 0 (not detected) sits at the 51st percentile in California and the 36th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
18 other systems share Amador County; 2 of them have a higher latest lead result than Awa, Ione. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Awa Buckhorn Plant | 8,791 | 0 (not detected) |
| City Of Jackson | 5,079 | 0 (not detected) |
| Awa, Tanner | 4,940 | 0 (not detected) |
| Awa - Camanche Village | 2,402 | 0 (not detected) |
| Jackson Valley Irrigation District | 1,303 | 0 (not detected) |
| Plymouth, City Of | 1,060 | 0 (not detected) |
| First Mace Meadow # 1 | 838 | 0 (not detected) |
| River Pines Pud | 574 | 0 (not detected) |
| Hope Foundation/Moriah Heights | 299 | 0 (not detected) |
| First Mace Meadows Unit No. 2 | 230 | 0 (not detected) |
What to do in your house
Look up your address in Awa, Ione'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 Awa, Ione 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. Small systems behave differently: why small systems go over more often.