Crystal Caves Mhp, CA
Lead reported as not detected
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 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Crystal Caves Mhp serves about 112 people through 40 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: CA0900422; phone on file: 530-306-7044. 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 2.1 ppb from 2.1 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Crystal Caves Mhp is 15 ppb across 5 monitoring periods, none of them over 15 ppb (2 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 2.1 ppb |
| 2019 | 1.8 ppb |
| 2016 | 15 ppb over 10 |
| 2016 | 15 ppb over 10 |
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. Crystal Caves Mhp's reported as 0 (not detected) sits at the 20th percentile in California and the 10th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
18 other systems share El Dorado County; 9 of them have a higher latest lead result than Crystal Caves Mhp. 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) |
Your move
Look up your address in Crystal Caves Mhp's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Crystal Caves Mhp 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. Small systems behave differently: why small systems go over more often.