AURORA CITY OF
CO · PWS ID CO0103005 · Community water system
110
contaminants tested
28
detected
533,407
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0078 ug/L | 1/12 | 2024 |
| PFBS | 0.0033 ug/L | 1/12 | 2024 |
| PFHxA | 0.0056 ug/L | 1/12 | 2024 |
| PFPeA | 0.0072 ug/L | 1/12 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 76.24 UG/L | 518/518 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 56.6 UG/L | 518/518 | SYR4 | 2012–2019 |
| Chlorite | 840 UG/L | 224/228 | SYR4 | 2012–2019 |
| Bromodichloromethane | 11.4 UG/L | 91/91 | SYR4 | 2012–2019 |
| Chloroform | 35.3 UG/L | 90/91 | SYR4 | 2012–2019 |
| Dibromochloromethane | 11.5 UG/L | 90/91 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 6.29 UG/L | 86/86 | SYR4 | 2018–2019 |
| Dichloroacetic Acid | 25.4 UG/L | 86/86 | SYR4 | 2018–2019 |
| Trichloroacetic Acid | 13.7 UG/L | 84/86 | SYR4 | 2018–2019 |
| Bromoform | 5.19 UG/L | 64/91 | SYR4 | 2012–2019 |
| Fluoride | 1070 UG/L | 38/38 | SYR4 | 2012–2019 |
| Nitrate | 1250 UG/L | 36/94 | SYR4 | 2012–2019 |
| Barium | 58.7 UG/L | 19/19 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0100 mg/L | 19/19 | LCR | 2025 |
| Nitrate-Nitrite | 1200 UG/L | 14/31 | SYR4 | 2012–2019 |
| Chromium | 2.5 UG/L | 11/19 | SYR4 | 2012–2019 |
| Arsenic | 1.48 UG/L | 6/19 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 1.24 UG/L | 5/86 | SYR4 | 2018–2019 |
| Selenium | 6.82 UG/L | 5/19 | SYR4 | 2012–2019 |
| lithium | 21.4 ug/L | 5/12 | UCMR-5 | 2024 |
| Combined Uranium | 5.2 UG/L | 3/3 | SYR4 | 2017 |
| Combined Radium (-226 and -228) | 4 PCI/L | 2/2 | SYR4 | 2017 |
| Gross Alpha, Excl. Radon and U | 0.9000 PCI/L | 2/3 | SYR4 | 2017 |
| Mercury | 0.0290 UG/L | 1/13 | SYR4 | 2012–2019 |
82 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, TotalAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMethoxychlorMonobromoacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene