Sunnyside Convalescent Hosp, CA
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (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.
Sunnyside Convalescent Hosp at a glance
Sunnyside Convalescent Hosp serves about 107 people through 2 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Fresno County, California. EPA system ID: CA1000366; phone on file: 559-233-6248. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2025 (0.8 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Sunnyside Convalescent Hosp is 24.36 ppb across 4 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0.8 ppb |
| 2021 | 0 (not detected) |
| 2018 | 24.36 ppb over 15 |
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. Sunnyside Convalescent Hosp's reported as 0 (not detected) sits at the 19th percentile in California and the 10th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
99 other systems share Fresno County; 30 of them have a higher latest lead result than Sunnyside Convalescent Hosp. 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 Sunnyside Convalescent Hosp 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.