North Lone Pine Mutual Water Company, CA
Lead detected, under the action levels
Latest 90th-percentile lead: 0.7 ppb (monitoring period 2025-2027). 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.
North Lone Pine Mutual Water Company at a glance
North Lone Pine Mutual Water Company serves about 70 people through 31 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Inyo County, California. EPA system ID: CA1400072; phone on file: 760-876-4640. 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 down 7.2 ppb from 7.9 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for North Lone Pine Mutual Water Company is 7.9 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2027 | 0.7 ppb |
| 2021 | 7.9 ppb |
| 2020 | 5.15 ppb |
| 2016 | 0 (not detected) |
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. North Lone Pine Mutual Water Company's 0.7 ppb sits at the 67th percentile in California and the 46th nationally (higher means more lead).
Neighbouring systems
43 other systems share Inyo County; 5 of them have a higher latest lead result than North Lone Pine Mutual Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Bishop, City Of | 3,819 | 0 (not detected) |
| Inyo County Pwd - Lone Pine | 1,835 | 0 (not detected) |
| Highland Mobile Home Park | 1,260 | 0 (not detected) |
| Inyo County Pwd - Independence | 1,108 | 0 (not detected) |
| Indian Creek Csd | 1,030 | 0 (not detected) |
| Rolling Green Utilities, Inc. | 940 | 0 (not detected) |
| Big Pine Csd | 798 | 0 (not detected) |
| Meadowcreek Mutual Water Company | 764 | 0 (not detected) |
| Sierra Highland Csd | 600 | 0 (not detected) |
| Glenwood Mobile Estates | 468 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Lone Pine, 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 North Lone Pine Mutual Water Company 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.