BRIGHTON CITY OF
CO · PWS ID CO0101025 · Community water system
105
contaminants tested
31
detected
56,304
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxA | 0.0094 ug/L | 16/16 | 2025 |
| PFPeA | 0.0193 ug/L | 16/16 | 2025 |
| PFBA | 0.0106 ug/L | 12/16 | 2025 |
| PFBS | 0.0074 ug/L | 12/16 | 2025 |
| PFHxS | 0.0071 ug/L | 9/16 | 2025 |
| PFOS | 0.0106 ug/L | 8/16 | 2025 |
| PFOA | 0.0053 ug/L | 4/16 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 106.2 UG/L | 156/156 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 61.16 UG/L | 156/156 | SYR4 | 2012–2019 |
| Bromodichloromethane | 37.4 UG/L | 91/92 | SYR4 | 2012–2019 |
| Dibromochloromethane | 35.1 UG/L | 91/92 | SYR4 | 2012–2019 |
| Bromoform | 18.8 UG/L | 88/92 | SYR4 | 2012–2019 |
| Chloroform | 35.9 UG/L | 87/92 | SYR4 | 2012–2019 |
| Nitrate | 6800 UG/L | 76/76 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 9.4 UG/L | 74/74 | SYR4 | 2015–2019 |
| Dichloroacetic Acid | 17.44 UG/L | 73/74 | SYR4 | 2015–2019 |
| Trichloroacetic Acid | 10.43 UG/L | 62/74 | SYR4 | 2015–2019 |
| Monobromoacetic acid | 4 UG/L | 53/74 | SYR4 | 2015–2019 |
| Fluoride | 1380 UG/L | 36/36 | SYR4 | 2012–2019 |
| Xylenes, Total | 2300 UG/L | 24/38 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0190 mg/L | 20/20 | LCR | 2023 |
| Monochloroacetic acid | 3.06 UG/L | 18/74 | SYR4 | 2015–2019 |
| Barium | 32 UG/L | 16/16 | SYR4 | 2012–2019 |
| lithium | 31.9 ug/L | 16/16 | UCMR-5 | 2025 |
| Selenium | 2.3 UG/L | 11/16 | SYR4 | 2012–2019 |
| Ethylbenzene | 700 UG/L | 9/38 | SYR4 | 2012–2019 |
| Arsenic | 2 UG/L | 5/16 | SYR4 | 2012–2019 |
| Chromium | 2 UG/L | 5/16 | SYR4 | 2012–2019 |
| Combined Uranium | 3.4 UG/L | 4/4 | SYR4 | 2013–2016 |
| Combined Radium (-226 and -228) | 0.2000 PCI/L | 2/2 | SYR4 | 2013 |
| Gross Alpha, Excl. Radon and U | 5.022 PCI/L | 2/4 | SYR4 | 2013–2016 |
74 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)pyreneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAAOXAMYLPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chloridecis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene