Warner Springs Estates, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 2.8 ppb (monitoring period 2022-2024). 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.
Who runs the water here
Warner Springs Estates serves about 448 people through 303 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in San Diego County, California. EPA system ID: CA3702354; phone on file: 951-412-1662. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 2.8 ppb from 0 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Warner Springs Estates is 12.5 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2.8 ppb |
| 2021 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 12.5 ppb over 10 |
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. Warner Springs Estates's 2.8 ppb sits at the 84th percentile in California and the 80th nationally (higher means more lead).
Nearby utilities
80 other systems share San Diego County; 8 of them have a higher latest lead result than Warner Springs Estates. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| San Diego, City Of | 1,408,937 | 0 (not detected) |
| Helix Water District | 277,918 | 0 (not detected) |
| Otay Water District | 242,155 | 0 (not detected) |
| Sweetwater Authority | 184,915 | 0 (not detected) |
| Oceanside, City Of | 174,340 | 0 (not detected) |
| Escondido, City Of | 137,044 | 1.1 ppb |
| Vista Irrigation District | 134,501 | 0 (not detected) |
| Vallecitos Wd | 114,700 | 0 (not detected) |
| Cal-Am Water Coronado | 106,000 | 2 ppb |
| Carlsbad Mwd | 96,371 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Temecula, 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 Warner Springs Estates 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. Size matters more than most people expect: small vs large water systems.