Sce Bishop Creek Plant 4, 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.
Sce Bishop Creek Plant 4 at a glance
Sce Bishop Creek Plant 4 serves about 35 people through 16 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: CA1400078; phone on file: 626-302-8919. They can tell you what your service line is made of and whether they pay to replace it.
Sce Bishop Creek Plant 4's lead record
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Sce Bishop Creek Plant 4 is 14.1 ppb across 4 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 14.1 ppb over 10 |
| 2017 | 4 ppb |
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. Sce Bishop Creek Plant 4's reported as 0 (not detected) sits at the 3rd percentile in California and the 1st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
43 other systems share Inyo County; 7 of them have a higher latest lead result than Sce Bishop Creek Plant 4. 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) |
Next steps for Rosemead, CA
Look up your address in Sce Bishop Creek Plant 4'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 Sce Bishop Creek Plant 4 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.