Spring Mountain Mutual Water Company, CA
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 13 ppb (monitoring period 2019-2021). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
Spring Mountain Mutual Water Company at a glance
Spring Mountain Mutual Water Company serves about 26 people through 13 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Kern County, California. EPA system ID: CA1500566; phone on file: 661-589-3181. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Spring Mountain Mutual Water Company's lead record
That is up 13 ppb from 0 ppb in the period ending 2018. The highest 90th-percentile result EPA holds for Spring Mountain Mutual Water Company is 13 ppb across 3 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2021 | 13 ppb over 10 |
| 2018 | 0 (not detected) |
| 2018 | 0 (not detected) |
How Spring Mountain Mutual Water Company 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. Spring Mountain Mutual Water Company's 13 ppb sits at the 98th percentile in California and the 98th nationally (higher means more lead).
Neighbouring systems
165 other systems share Kern County; 3 of them have a higher latest lead result than Spring Mountain Mutual Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cws - Bakersfield | 268,129 | 2.8 ppb |
| Bakersfield, City Of | 171,108 | 1.3 ppb |
| Delano, City Of | 51,428 | 0 (not detected) |
| Oildale Mwc | 45,315 | 0 (not detected) |
| Indian Wells Valley W.D. | 41,474 | 0 (not detected) |
| Tejon Castac Wd - I5 & Laval Rd | 38,125 | 0 (not detected) |
| Antelope Valley E Kern Wtr Agy-Rosamond | 37,634 | - |
| Vaughn Wc Inc | 37,189 | 0 (not detected) |
| East Niles Csd | 32,517 | 1.4 ppb |
| Cws - North Garden | 27,634 | 4.2 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Woody, 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 Spring Mountain Mutual Water Company whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 4515 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. Why sampled homes are the worst-case ones is in the guide to reading the number. This system is in the band the 2027 10 ppb rule changes.