Lompoc-City Water Utility Div, CA
Lead reported as not detected
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 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Lompoc-City Water Utility Div serves about 40,538 people through 9,905 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 Santa Barbara County, California. EPA system ID: CA4210006; phone on file: 805-875-8701. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lompoc-City Water Utility Div'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 Lompoc-City Water Utility Div is 1.4 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 1.4 ppb |
How Lompoc-City Water Utility Div 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. Lompoc-City Water Utility Div's reported as 0 (not detected) sits at the 58th percentile in California and the 39th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Santa Barbara County
62 other systems share Santa Barbara County; 15 of them have a higher latest lead result than Lompoc-City Water Utility Div. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Santa Maria Utilities Department | 112,208 | 0 (not detected) |
| City Of Santa Barbara Water Department | 93,334 | 2.5 ppb |
| Goleta Water District | 85,535 | 0 (not detected) |
| Golden State Water Company - Orcutt | 34,267 | 2.6 ppb |
| Carpinteria Valley Water District | 16,356 | 0 (not detected) |
| American Water O&M, Llc - Vsfb | 14,971 | 0 (not detected) |
| Montecito Water Dist | 12,010 | 0 (not detected) |
| Guadalupe Water Department | 8,897 | 0 (not detected) |
| Vandenberg Village Comm. Serv. Dist. | 7,308 | 0 (not detected) |
| Santa Ynez River Water Cons. Dist. Id#1 | 7,022 | 0 (not detected) |
Next steps for Lompoc, CA
Look up your address in Lompoc-City Water Utility Div's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Lompoc-City Water Utility Div 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. Small systems behave differently: why small systems go over more often.