Placer Cwa - Applegate, CA
Exceeded the action level in the past
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 result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Who runs the water here
Placer Cwa - Applegate serves about 190 people through 67 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: CA3110050; phone on file: 530-823-2066. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2023 (0.68 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Placer Cwa - Applegate is 19.5 ppb across 6 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2023 | 0.68 ppb |
| 2020 | 9.14 ppb |
| 2017 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 19.5 ppb over 15 |
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. Placer Cwa - Applegate's reported as 0 (not detected) sits at the 26th percentile in California and the 15th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
50 other systems share Placer County; 29 of them have a higher latest lead result than Placer Cwa - Applegate. 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 |
Next steps for Auburn, CA
Test your own tap with a certified lab first-draw sample; Auburn, 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 Placer Cwa - Applegate 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. More in what a past exceedance means today.