Inverness Public Utility Dist, CA
Exceeded the action level in the past
Latest 90th-percentile lead: 5.3 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. 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.
Inverness Public Utility Dist at a glance
Inverness Public Utility Dist serves about 1,445 people through 519 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Marin County, California. EPA system ID: CA2110001; phone on file: 415-669-1414. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Inverness Public Utility Dist's lead record
That is up 2.6 ppb from 2.7 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Inverness Public Utility Dist is 21 ppb across 10 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 5.3 ppb |
| 2023 | 2.7 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 5 ppb |
| 2018 | 0 (not detected) |
| 2018 | 21 ppb over 15 |
| 2017 | 10 ppb |
How Inverness Public Utility Dist 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. Inverness Public Utility Dist's 5.3 ppb sits at the 92nd percentile in California and the 92nd nationally (higher means more lead).
Other water systems in Marin County
13 other systems share Marin County; 1 of them has a higher latest lead result than Inverness Public Utility Dist. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Marin Municipal Water District | 188,116 | 0 (not detected) |
| North Marin Water District | 61,691 | 0 (not detected) |
| Bolinas Community Pud | 1,937 | 0 (not detected) |
| North Marin Wd - Pt. Reyes | 1,841 | 0 (not detected) |
| Lawson S Landing | 946 | 0 (not detected) |
| Stinson Beach County Wtr Dist | 583 | 0 (not detected) |
| Coast Springs - Cal. Water Service (Puc) | 445 | 0 (not detected) |
| Muir Beach Community | 336 | 10 ppb |
| Estero Mutual | 206 | 0 (not detected) |
| Green Gulch Farm | 75 | 3 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Inverness, 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 Inverness Public Utility Dist 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. More in what a past exceedance means today.