City Of Susanville, 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.
City Of Susanville at a glance
City Of Susanville serves about 7,811 people through 3,758 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Lassen County, California. EPA system ID: CA1810001; phone on file: 530-257-1041. Call that number and ask whether your address has a lead, galvanized or unknown service line.
City Of Susanville'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 City Of Susanville is 4.5 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 | 4.1 ppb |
| 2016 | 4.5 ppb |
How City Of Susanville 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. City Of Susanville's reported as 0 (not detected) sits at the 52nd percentile in California and the 36th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Lassen County
14 other systems share Lassen County; 5 of them have a higher latest lead result than City Of Susanville. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cdcr-High Desert State Prison | 3,857 | 0 (not detected) |
| Westwood C.S.D. | 1,662 | 0.91 ppb |
| Leavitt Lake Csd | 950 | 0 (not detected) |
| Herlong Public Utility District | 831 | 1 ppb |
| Lake Forest Mutual W.C. | 565 | 0 (not detected) |
| Lassen County Water Works District #1 | 450 | 3 ppb |
| Clear Creek Csd-Westwood | 400 | 2.94 ppb |
| Susan Hills Estates Wc | 252 | 0 (not detected) |
| Susan River Park Water Co. | 140 | 0 (not detected) |
| Pineview Mobile Home Park | 80 | 0 (not detected) |
Your move
Look up your address in City Of Susanville'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 City Of Susanville 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. A zero today does not rule out a jump later - the rules are tightening in 2027.