ARAPAHOE CNTY WWWA
CO · PWS ID CO0203002 · Community water system
109
contaminants tested
32
detected
31,000
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0061 ug/L | 2/14 | 2023 |
| PFHxA | 0.0068 ug/L | 2/14 | 2023 |
| PFPeA | 0.0079 ug/L | 2/14 | 2023 |
| PFBA | 0.0055 ug/L | 1/14 | 2023 |
| PFOA | 0.0046 ug/L | 1/14 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 59.1 UG/L | 90/98 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 12.8 UG/L | 77/92 | SYR4 | 2012–2019 |
| Nitrate | 3900 UG/L | 50/118 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0310 mg/L | 31/31 | LCR | 2025 |
| Barium | 312 UG/L | 20/20 | SYR4 | 2012–2019 |
| Fluoride | 1500 UG/L | 20/20 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon and U | 11.707 PCI/L | 16/16 | SYR4 | 2012–2019 |
| Bromoform | 33.2 UG/L | 15/23 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 5.4 PCI/L | 15/15 | SYR4 | 2012–2019 |
| Dibromochloromethane | 19 UG/L | 15/23 | SYR4 | 2012–2019 |
| lithium | 23.2 ug/L | 14/14 | UCMR-5 | 2023 |
| Bromodichloromethane | 12 UG/L | 13/23 | SYR4 | 2012–2019 |
| Chloroform | 7.9 UG/L | 12/23 | SYR4 | 2012–2019 |
| Combined Uranium | 15 UG/L | 11/15 | SYR4 | 2012–2019 |
| Antimony, Total | 1.3 UG/L | 8/20 | SYR4 | 2012–2019 |
| Arsenic | 8 UG/L | 8/20 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1500 UG/L | 8/9 | SYR4 | 2012–2015 |
| Selenium | 9.9 UG/L | 7/20 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 6.8 UG/L | 4/8 | SYR4 | 2015–2019 |
| Dichloroacetic Acid | 4 UG/L | 4/8 | SYR4 | 2015–2019 |
| Cadmium | 0.1200 UG/L | 3/20 | SYR4 | 2012–2019 |
| Mercury | 0.0410 UG/L | 3/20 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 2.2 UG/L | 3/8 | SYR4 | 2015–2019 |
| Thallium, Total | 0.0800 UG/L | 2/20 | SYR4 | 2012–2019 |
| Chromium | 0.2700 UG/L | 1/20 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) adipate | 1.4 UG/L | 1/36 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) phthalate | 1.3 UG/L | 1/36 | SYR4 | 2012–2019 |
77 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-PF3ONSADONAAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMethoxychlorMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene