Sugar Pine Rv Resort, CA
Exceeded the action level in the past
Latest 90th-percentile lead: 9 ppb (monitoring period 2025-2025). 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.
Sugar Pine Rv Resort at a glance
Sugar Pine Rv Resort serves about 160 people through 88 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Tuolumne County, California. EPA system ID: CA5500115; phone on file: 209-586-4631. 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 down 1.4 ppb from 10.4 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Sugar Pine Rv Resort is 17.4 ppb across 14 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 9 ppb |
| 2024 | 10.4 ppb over 10 |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2023 | 2.86 ppb |
| 2022 | 17.4 ppb over 15 |
| 2021 | 10 ppb |
| 2020 | 8 ppb |
| 2020 | 8 ppb |
| 2019 | 13.2 ppb over 10 |
| 2019 | 0 (not detected) |
| 2018 | 13.4 ppb over 10 |
| 2017 | 7.4 ppb |
| 2016 | 9 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. Sugar Pine Rv Resort's 9 ppb sits at the 97th percentile in California and the 96th nationally (higher means more lead).
Other water systems in Tuolumne County
48 other systems share Tuolumne County; 5 of them have a higher latest lead result than Sugar Pine Rv Resort. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Tud - Upper Basin Water System | 13,331 | 0 (not detected) |
| Tud - Sonora/Jamestown Water System | 11,113 | 0 (not detected) |
| Tud - Columbia Water System | 5,482 | 5.4 ppb |
| Cdcr - Sierra Conservation Center | 3,571 | 0 (not detected) |
| Groveland Community Serv Dist | 3,400 | 0 (not detected) |
| Twain Harte Community Services District | 2,378 | 0 (not detected) |
| Tud - Tuolumne Water System | 1,798 | 0 (not detected) |
| Tud - Ponderosa | 1,781 | 0 (not detected) |
| Cold Springs Water Co | 1,771 | 2.8 ppb |
| Lake Don Pedro Csd | 1,700 | 0 (not detected) |
Next steps for Twain Harte, CA
Test your own tap with a certified lab first-draw sample; Twain Harte, 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 Sugar Pine Rv Resort whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1531 ppb (copper action level 1,300 ppb).
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. Why an old exceedance still matters: over the limit before, under it now.