Crowley Lake Trailer Park, CA
Exceeded the action level in the past
Latest 90th-percentile lead: 9.4 ppb (monitoring period 2022-2024). 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
Crowley Lake Trailer Park serves about 230 people through 108 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Mono County, California. EPA system ID: CA2600547; phone on file: 760-935-4221. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Crowley Lake Trailer Park's lead record
Against the period ending 2021 (9 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Crowley Lake Trailer Park is 19 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 9.4 ppb |
| 2021 | 9 ppb |
| 2020 | 6.4 ppb |
| 2019 | 6.2 ppb |
| 2019 | 6.4 ppb |
| 2018 | 8.1 ppb |
| 2016 | 19 ppb over 15 |
How Crowley Lake Trailer Park 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. Crowley Lake Trailer Park's 9.4 ppb sits at the 97th percentile in California and the 97th nationally (higher means more lead).
Nearby utilities
17 other systems share Mono County; 0 of them have a higher latest lead result than Crowley Lake Trailer Park. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Mammoth Cwd | 8,234 | 1.5 ppb |
| Mountain Meadows Mwc | 525 | 4.4 ppb |
| Usmc - Housing Coleville | 424 | 1.3 ppb |
| Bridgeport Pud | 374 | 1.9 ppb |
| Lower Rock Creek Mutual Water Co. | 310 | 0 (not detected) |
| June Lake Pud - Down Canyon | 310 | 2 ppb |
| Usmc/Mtn Warfare Trng Ctr - Bridgeport | 300 | 1 ppb |
| June Lake Pud Village | 263 | 2.7 ppb |
| Lee Vining Public Utility District | 222 | 8 ppb |
| Lundy Mutual Water Company | 200 | 3.7 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Crowley Lake, 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 Crowley Lake Trailer Park 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. Why an old exceedance still matters: over the limit before, under it now.