CITY OF VACAVILLE
CA · PWS ID CA4810008 · Community water system
113
contaminants tested
25
detected
99,650
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxS | 0.0092 ug/L | 3/21 | 2025 |
| PFBS | 0.0037 ug/L | 2/21 | 2025 |
| PFOS | 0.0100 ug/L | 2/21 | 2025 |
| PFOA | 0.0051 ug/L | 1/21 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 4813.8 UG/L | 210/382 | SYR4 | 2012–2019 |
| Fluoride | 1000 UG/L | 176/216 | SYR4 | 2012–2019 |
| Arsenic | 8.5 UG/L | 71/129 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 18 UG/L | 46/48 | SYR4 | 2018–2019 |
| Total Haloacetic Acids (HAA5) | 35 UG/L | 46/48 | SYR4 | 2018–2019 |
| Trichloroacetic Acid | 17 UG/L | 46/48 | SYR4 | 2018–2019 |
| LEAD SUMMARY | 0.0100 mg/L | 33/33 | LCR | 2023 |
| Nitrate-Nitrite | 1000000 UG/L | 33/90 | SYR4 | 2012–2019 |
| Chromium | 152 UG/L | 27/111 | SYR4 | 2012–2019 |
| TTHM | 76 UG/L | 22/22 | SYR4 | 2012–2019 |
| Bromodichloromethane | 12 UG/L | 21/22 | SYR4 | 2012–2019 |
| Chloroform | 62 UG/L | 21/22 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 3.1 UG/L | 17/48 | SYR4 | 2018–2019 |
| Dibromochloromethane | 4.7 UG/L | 17/22 | SYR4 | 2012–2019 |
| Lead | 83 UG/L | 17/108 | SYR4 | 2012–2019 |
| lithium | 45 ug/L | 14/21 | UCMR-5 | 2025 |
| Barium | 140 UG/L | 10/79 | SYR4 | 2012–2019 |
| Cadmium | 2.3 UG/L | 4/102 | SYR4 | 2012–2019 |
| COPPER, FREE | 107 UG/L | 2/112 | SYR4 | 2012–2019 |
| Bromate | 1.1 UG/L | 1/26 | SYR4 | 2014–2017 |
| Combined Uranium | 2.831 UG/L | 1/22 | SYR4 | 2012–2019 |
88 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalBromoformCHLOROBENZENECYANIDECarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFMBAPFMPAPFNAPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
VACAVILLE