Cws - Selma, 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.
Cws - Selma at a glance
Cws - Selma serves about 25,651 people through 6,487 service connections, which makes it a large system under EPA's size classes. It is privately owned and draws groundwater, in Fresno County, California. EPA system ID: CA1010024; phone on file: 408-367-8593. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Cws - Selma'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 Cws - Selma is 0 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 0 (not detected) |
How Cws - Selma 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. Cws - Selma's reported as 0 (not detected) sits at the 56th percentile in California and the 39th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Fresno County
99 other systems share Fresno County; 30 of them have a higher latest lead result than Cws - Selma. 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) |
| 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) |
| Kingsburg, City Of | 13,540 | 0 (not detected) |
Next steps for San Jose, CA
Look up your address in Cws - Selma'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 Cws - Selma 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. What a 90th-percentile result does and does not tell you: how to read a lead result. A zero today does not rule out a jump later - the rules are tightening in 2027.