Point Cabrillo Highlands, CA
Exceeded the action level in the past
Latest 90th-percentile lead: 2.7 ppb (monitoring period 2025-2025). 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.
About Point Cabrillo Highlands
Point Cabrillo Highlands serves about 42 people through 21 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Mendocino County, California. EPA system ID: CA2300668; phone on file: 510-421-9055. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is down 3.3 ppb from 6 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Point Cabrillo Highlands is 32 ppb across 8 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.7 ppb |
| 2024 | 6 ppb |
| 2024 | 3.6 ppb |
| 2023 | 10 ppb |
| 2023 | 23 ppb over 15 |
| 2022 | 32 ppb over 15 |
| 2019 | 0 (not detected) |
| 2016 | 4.45 ppb |
Where this result ranks
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. Point Cabrillo Highlands's 2.7 ppb sits at the 82nd percentile in California and the 79th nationally (higher means more lead).
Neighbouring systems
40 other systems share Mendocino County; 4 of them have a higher latest lead result than Point Cabrillo Highlands. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ukiah, City Of | 16,067 | 0 (not detected) |
| Fort Bragg, City Of | 7,117 | 0 (not detected) |
| Willits, City Of | 6,175 | 0 (not detected) |
| Millview County Water District | 5,500 | 0 (not detected) |
| Redwood Valley County Water District | 5,200 | 0 (not detected) |
| Willow County Water District | 3,797 | 0 (not detected) |
| Brooktrails Township Csd | 3,632 | 0 (not detected) |
| North Gualala Water Company | 3,508 | 0 (not detected) |
| Rogina Water Company Inc. | 2,554 | 0 (not detected) |
| Laytonville County Water District | 1,152 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Oakland, 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 Point Cabrillo Highlands whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1750 ppb (copper action level 1,300 ppb).
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. Why an old exceedance still matters: over the limit before, under it now.