City Of Pleasanton, CA
Exceeded the action level in the past
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 result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
City Of Pleasanton at a glance
City Of Pleasanton serves about 76,689 people through 22,334 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 Alameda County, California. EPA system ID: CA0110008; phone on file: 925-931-5522. Call that number and ask whether your address has a lead, galvanized or unknown service line.
City Of Pleasanton'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 City Of Pleasanton is 21.8 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2022 | 21.8 ppb over 15 |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 4.2 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. City Of Pleasanton's reported as 0 (not detected) sits at the 61st percentile in California and the 40th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Alameda County
13 other systems share Alameda County; 3 of them have a higher latest lead result than City Of Pleasanton. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| East Bay Mud | 1,468,000 | 0 (not detected) |
| Alameda County Water District | 344,000 | 0 (not detected) |
| City Of Hayward | 162,954 | 0 (not detected) |
| Dublin San Ramon Services District | 98,776 | 0 (not detected) |
| California Water Service - Livermore | 60,414 | 7.5 ppb |
| City Of Livermore | 38,892 | 0 (not detected) |
| Alameda Point | 600 | 0 (not detected) |
| Castlewood Domestic Water System | 524 | 0 (not detected) |
| Trailer Haven Mobile Home Park | 459 | 2.7 ppb |
| Town Of Sunol - Sfpuc | 281 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Pleasanton, 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 City Of Pleasanton 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. More in what a past exceedance means today.