Fcsa 05 - Wildwood Island, CA
Exceeded the action level in the past
Latest 90th-percentile lead: 3.2 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.
Who runs the water here
Fcsa 05 - Wildwood Island serves about 417 people through 149 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Fresno County, California. EPA system ID: CA1000021; phone on file: 559-600-4482. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 3.2 ppb from 6.4 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Fcsa 05 - Wildwood Island is 26 ppb across 8 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 3.2 ppb |
| 2025 | 6.4 ppb |
| 2025 | 6.3 ppb |
| 2024 | 26 ppb over 15 |
| 2024 | 2.6 ppb |
| 2021 | 6.1 ppb |
| 2018 | 3.45 ppb |
| 2017 | 5 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. Fcsa 05 - Wildwood Island's 3.2 ppb sits at the 87th percentile in California and the 84th nationally (higher means more lead).
Nearby utilities
99 other systems share Fresno County; 9 of them have a higher latest lead result than Fcsa 05 - Wildwood Island. 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) |
Next steps for Fresno, CA
Test your own tap with a certified lab first-draw sample; Fresno, 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 Fcsa 05 - Wildwood Island 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. More in what a past exceedance means today.