Quintette Service Corp Water, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 2.54 ppb (monitoring period 2026-2028). 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
Quintette Service Corp Water serves about 68 people through 51 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in El Dorado County, California. EPA system ID: CA0900308; phone on file: 510-269-3818. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
That is up 2.54 ppb from 0 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Quintette Service Corp Water is 4.4 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 2.54 ppb |
| 2023 | 0 (not detected) |
| 2022 | 3.4 ppb |
| 2020 | 4.4 ppb |
Against other California systems
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. Quintette Service Corp Water's 2.54 ppb sits at the 82nd percentile in California and the 78th nationally (higher means more lead).
Other water systems in El Dorado County
18 other systems share El Dorado County; 3 of them have a higher latest lead result than Quintette Service Corp Water. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| El Dorado Id - Main | 128,408 | 0 (not detected) |
| South Tahoe Pud - Main | 30,089 | 0 (not detected) |
| Georgetown Divide Pud | 9,434 | 0 (not detected) |
| Placerville, City Of - Main | 9,224 | 0 (not detected) |
| Lukins Brothers Water Company | 3,277 | 3 ppb |
| Tahoe Keys Water Company | 1,420 | 2.5 ppb |
| Tahoe City Pud - Rubicon | 1,384 | 2.2 ppb |
| Grizzly Flats Community Servic | 1,093 | 2.5 ppb |
| Lakeside Park Association | 924 | 0 (not detected) |
| El Dorado Id - Outingdale | 478 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Georgetown, 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 Quintette Service Corp Water 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. Systems that went over once often dip back under; here is what that means.