CTWC - SHORELINE REGION-GUILFORD SYSTEM
CT · PWS ID CT0608011 · Community water system
110
contaminants tested
31
detected
33,975
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOA | 0.0060 ug/L | 8/22 | 2025 |
| PFOS | 0.0120 ug/L | 6/22 | 2025 |
| PFBA | 0.0120 ug/L | 3/22 | 2025 |
| PFBS | 0.0050 ug/L | 3/22 | 2025 |
| PFPeA | 0.0040 ug/L | 3/22 | 2025 |
| PFHxA | 0.0040 ug/L | 2/22 | 2025 |
| PFHxS | 0.0040 ug/L | 1/22 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 3369 UG/L | 230/260 | SYR4 | 2012–2019 |
| Chloroform | 50 UG/L | 181/227 | SYR4 | 2012–2019 |
| Bromodichloromethane | 15.3 UG/L | 177/227 | SYR4 | 2012–2019 |
| Dibromochloromethane | 9 UG/L | 173/227 | SYR4 | 2012–2019 |
| TTHM | 65.2 UG/L | 138/141 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 17 UG/L | 136/136 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 37 UG/L | 136/136 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 21 UG/L | 134/136 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 3369 UG/L | 123/137 | SYR4 | 2012–2019 |
| COPPER, FREE | 465 UG/L | 118/123 | SYR4 | 2012–2019 |
| Fluoride | 1120 UG/L | 39/47 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0080 mg/L | 39/39 | LCR | 2026 |
| Lead | 42.5 UG/L | 23/123 | SYR4 | 2012–2019 |
| Barium | 25 UG/L | 22/34 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 3 UG/L | 15/136 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 3.2 UG/L | 4/136 | SYR4 | 2012–2019 |
| Nitrite | 6 UG/L | 4/130 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 2.76 PCI/L | 3/18 | SYR4 | 2014–2019 |
| Bromoform | 0.6300 UG/L | 2/227 | SYR4 | 2012–2019 |
| Arsenic | 0.7000 UG/L | 1/35 | SYR4 | 2012–2019 |
| Beryllium, Total | 0.4000 UG/L | 1/26 | SYR4 | 2012–2019 |
| Combined Uranium | 1.05 UG/L | 1/26 | SYR4 | 2014–2019 |
| Di(2-ethylhexyl) phthalate | 2 UG/L | 1/51 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon and U | 2.1 PCI/L | 1/18 | SYR4 | 2014–2019 |
79 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, TotalAtrazineBHC-GAMMABenzeneBenzo(a)pyreneCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDinosebDiquatETHYLENE DIBROMIDEEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidNEtFOSAANFDHANMeFOSAAOXAMYLPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chloridecis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
CLINTONGUILFORDMADISONOLD SAYBROOKWESTBROOK