San Lucas County Water District, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 1.4 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. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
San Lucas County Water District at a glance
San Lucas County Water District serves about 315 people through 94 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Monterey County, California. EPA system ID: CA2701676; phone on file: 831-382-4410. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2024 (1.6 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for San Lucas County Water District is 1.6 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.4 ppb |
| 2024 | 1.6 ppb |
| 2023 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 0 (not detected) |
How San Lucas County Water District 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. San Lucas County Water District's 1.4 ppb sits at the 74th percentile in California and the 62nd nationally (higher means more lead).
Neighbouring systems
155 other systems share Monterey County; 63 of them have a higher latest lead result than San Lucas County Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cal Am Water Company - Monterey | 128,928 | 1 ppb |
| Cwsc Salinas | 114,286 | 1.2 ppb |
| Alco Water Service | 56,253 | 0 (not detected) |
| Marina Coast Water District | 38,918 | 0 (not detected) |
| Soledad, City Of | 19,732 | 0 (not detected) |
| Greenfield, City Of | 18,967 | 0 (not detected) |
| Cwsc King City | 14,046 | 0 (not detected) |
| Gonzales, City Of | 8,333 | 0 (not detected) |
| Cwsc Salinas Hills | 7,733 | 0.9 ppb |
| Castroville Community Services District | 7,515 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; San Lucas, 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 San Lucas County Water District 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. The action level is dropping - the 10 ppb rule from 2027.