Sierra Lakes County Water Dist, CA
Above the federal action level
Latest 90th-percentile lead: 36 ppb (monitoring period 2024-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Who runs the water here
Sierra Lakes County Water Dist serves about 210 people through 845 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Placer County, California. EPA system ID: CA3110017; phone on file: 530-426-7802. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is up 33 ppb from 3 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Sierra Lakes County Water Dist is 36 ppb across 4 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 36 ppb over 15 |
| 2023 | 3 ppb |
| 2020 | 0 (not detected) |
| 2017 | 3 ppb |
How Sierra Lakes County Water Dist 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. Sierra Lakes County Water Dist's 36 ppb sits at the 100th percentile in California and the 100th nationally (higher means more lead).
Neighbouring systems
50 other systems share Placer County; 0 of them have a higher latest lead result than Sierra Lakes County Water Dist. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Roseville | 165,736 | 0 (not detected) |
| Placer Cwa - Foothill | 93,417 | 0 (not detected) |
| City Of Lincoln | 56,268 | 0 (not detected) |
| Placer Cwa - Auburn/Bowman | 27,317 | 0 (not detected) |
| Cal Am - West Placer | 9,547 | 0 (not detected) |
| Nevada Id - North Auburn | 6,870 | 0 (not detected) |
| Foresthill Public Utility Dist | 6,811 | 0 (not detected) |
| Tahoe City Pud - Main | 6,411 | 4.4 ppb |
| North Tahoe Pud - Main | 6,321 | 1.45 ppb |
| Northstar Csd - Martis Valley | 4,432 | 0.85 ppb |
Your move
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Sierra Lakes County Water Dist 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. Systems that went over once often dip back under; here is what that means.