ATASCADERO STATE HOSPITAL
CA · PWS ID CA4010832 · Community water system
86
contaminants tested
26
detected
4,100
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0055 ug/L | 2/2 | 2023 |
| PFHxS | 0.0340 ug/L | 2/2 | 2023 |
| PFOS | 0.0330 ug/L | 2/2 | 2023 |
| PFHxA | 0.0036 ug/L | 1/2 | 2023 |
| PFPeS | 0.0061 ug/L | 1/2 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 3100 UG/L | 82/82 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0240 mg/L | 28/28 | LCR | 2026 |
| Fluoride | 300 UG/L | 12/12 | SYR4 | 2012–2019 |
| Selenium | 9 UG/L | 7/10 | SYR4 | 2014–2019 |
| Nitrate-Nitrite | 1000000 UG/L | 6/6 | SYR4 | 2012–2019 |
| Barium | 106 UG/L | 5/10 | SYR4 | 2014–2019 |
| Bromodichloromethane | 9 UG/L | 5/5 | SYR4 | 2013–2019 |
| Bromoform | 8.4 UG/L | 5/5 | SYR4 | 2013–2019 |
| Chloroform | 4 UG/L | 5/5 | SYR4 | 2013–2019 |
| Dibromoacetic acid | 8 UG/L | 5/5 | SYR4 | 2013–2019 |
| Dibromochloromethane | 13 UG/L | 5/5 | SYR4 | 2013–2019 |
| TTHM | 32 UG/L | 5/5 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 12 UG/L | 5/5 | SYR4 | 2013–2019 |
| Arsenic | 2 UG/L | 4/10 | SYR4 | 2014–2019 |
| Cadmium | 1 UG/L | 3/10 | SYR4 | 2014–2019 |
| Chromium | 3 UG/L | 2/10 | SYR4 | 2014–2019 |
| Dichloroacetic Acid | 4 UG/L | 2/5 | SYR4 | 2013–2019 |
| Combined Uranium | 2.8757 UG/L | 1/1 | SYR4 | 2017 |
| Lead | 1.2 UG/L | 1/10 | SYR4 | 2014–2019 |
| Monobromoacetic acid | 1 UG/L | 1/5 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 7.23 UG/L | 1/5 | SYR4 | 2013–2019 |
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBenzeneBeryllium, TotalCHLOROBENZENECOPPER, FREECYANIDECarbon tetrachlorideDICHLOROMETHANEETHYLENE DIBROMIDEEthylbenzeneHFPO-DALASSOMercuryMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitritePFBAPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFOAPFPeAPFTAPFTrDAPFUnASimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene