AVON WATER CO
CT · PWS ID CT0040011 · Community water system
111
contaminants tested
27
detected
11,590
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOA | 0.0070 ug/L | 5/12 | 2025 |
| PFBS | 0.0030 ug/L | 4/12 | 2025 |
| PFOS | 0.0080 ug/L | 4/12 | 2025 |
| PFHxA | 0.0040 ug/L | 2/12 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Dibromochloromethane | 7.9 UG/L | 155/344 | SYR4 | 2012–2019 |
| Bromodichloromethane | 5.1 UG/L | 144/344 | SYR4 | 2012–2019 |
| Bromoform | 4 UG/L | 137/344 | SYR4 | 2012–2019 |
| COPPER, FREE | 994 UG/L | 133/133 | SYR4 | 2014–2019 |
| TTHM | 18.2 UG/L | 129/132 | SYR4 | 2012–2019 |
| Nitrate | 4200 UG/L | 126/126 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 3.2 UG/L | 118/132 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 5.4 UG/L | 118/132 | SYR4 | 2012–2019 |
| Chloroform | 2.4 UG/L | 114/344 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 4200 UG/L | 63/63 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 1.8 UG/L | 28/132 | SYR4 | 2012–2019 |
| Lead | 49 UG/L | 25/133 | SYR4 | 2014–2019 |
| Barium | 1258.7 UG/L | 24/24 | SYR4 | 2014–2018 |
| LEAD SUMMARY | 0.0100 mg/L | 14/14 | LCR | 2026 |
| Chromium | 2.4 UG/L | 13/24 | SYR4 | 2014–2018 |
| Combined Radium (-226 and -228) | 1.58 PCI/L | 10/24 | SYR4 | 2013–2018 |
| Monochloroacetic acid | 1.1 UG/L | 9/132 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 0.6200 UG/L | 8/132 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon and U | 1.8 PCI/L | 4/24 | SYR4 | 2013–2018 |
| Chlordane | 0.3000 UG/L | 3/72 | SYR4 | 2012–2019 |
| Combined Uranium | 2.2 UG/L | 3/24 | SYR4 | 2013–2018 |
| Monobromoacetic acid | 0.7300 UG/L | 3/132 | SYR4 | 2012–2019 |
| Arsenic | 3.2 UG/L | 1/24 | SYR4 | 2014–2018 |
84 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndrinEthylbenzeneFluorideGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
AVONFARMINGTONSIMSBURY