Sce/Big Creek Powerhouse 1, CA
Exceeded the action level in the past
Latest 90th-percentile lead: 5 ppb (monitoring period 2026-2026). 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.
Sce/Big Creek Powerhouse 1 at a glance
Sce/Big Creek Powerhouse 1 serves about 104 people through 60 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Fresno County, California. EPA system ID: CA1009111; phone on file: 626-302-8919. 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 125 ppb from 130 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Sce/Big Creek Powerhouse 1 is 130 ppb across 8 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 5 ppb |
| 2025 | 130 ppb over 15 |
| 2024 | 5 ppb |
| 2023 | 8.6 ppb |
| 2022 | 9.1 ppb |
| 2022 | 8.1 ppb |
| 2021 | 20 ppb over 15 |
| 2018 | 0 (not detected) |
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. Sce/Big Creek Powerhouse 1's 5 ppb sits at the 92nd percentile in California and the 91st nationally (higher means more lead).
Nearby utilities
99 other systems share Fresno County; 6 of them have a higher latest lead result than Sce/Big Creek Powerhouse 1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Fresno | 545,970 | 0 (not detected) |
| City Of Clovis | 133,118 | 0 (not detected) |
| City Of Sanger | 26,357 | 0 (not detected) |
| Reedley, City Of | 26,076 | 0 (not detected) |
| Cws - Selma | 25,651 | 0 (not detected) |
| Bakman Water Company | 17,393 | 0 (not detected) |
| Coalinga-City | 17,277 | 0 (not detected) |
| Kerman, City Of | 17,256 | 0 (not detected) |
| Pinedale County Water District | 16,736 | 2.9 ppb |
| City Of Parlier | 14,576 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Rosemead, 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 Sce/Big Creek Powerhouse 1 whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1480 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. The lead result guide covers how utilities pick the homes they sample. More in what a past exceedance means today.