PlainWater
States → Colorado

PARKER WSD

PWS ID: CO0118040 · PARKER, Colorado 80134

PFAS Detected

6 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
75,949
Total Violations
466
Health-Based Violations
9
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
20,005
County
Douglas
School/Daycare
No
MCL Violations
9
Monitoring Violations
450
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
BHC-GAMMA MR 14 2005
Methoxychlor MR 14 2005
Toxaphene MR 14 2005
Diquat MR 14 2005
Di(2-ethylhexyl) adipate MR 14 2005
OXAMYL MR 14 2005
Picloram MR 14 2005
Dinoseb MR 14 2005
Carbofuran MR 14 2005
Aldicarb MR 14 2005
LASSO MR 14 2005
2,4,5-TP MR 14 2005
Benzo(a)pyrene MR 14 2005
1,2-DIBROMO-3-CHLOROPROPANE MR 14 2005
ETHYLENE DIBROMIDE MR 14 2005
Endrin MR 14 2005
Di(2-ethylhexyl) phthalate MR 14 2005
Hexachlorocyclopentadiene MR 14 2005
Aldicarb sulfoxide MR 14 2005
Aldicarb sulfone MR 14 2005
Pentachlorophenol MR 14 2005
2,4-D MR 14 2005
Heptachlor epoxide MR 14 2005
Atrazine MR 14 2005
Total Polychlorinated Biphenyls (PCB) MR 14 2005
Endothall MR 14 2005
Heptachlor MR 14 2005
Chlordane MR 14 2005
Simazine MR 14 2005
HEXACHLOROBENZENE MR 14 2005

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 54 of 780 samples detected PFAS.

Contaminant Date Result MRL Status
NEtFOSAA 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/4/2024 <0.007 µg/L 0.007 µg/L Not Detected
lithium 9/4/2024 20.3000 µg/L 9 µg/L Detected
NMeFOSAA 9/4/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 9/4/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFBS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 9/4/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/4/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/4/2024 <0.008 µg/L 0.008 µg/L Not Detected
lithium 9/4/2024 17.2000 µg/L 9 µg/L Detected
PFDA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/4/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/4/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/4/2024 <0.02 µg/L 0.02 µg/L Not Detected
HFPO-DA 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 9/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/4/2024 21.4000 µg/L 9 µg/L Detected
PFTA 9/4/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 9/4/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 9/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/4/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFHxA 9/30/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 9/30/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/30/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/30/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 9/30/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/30/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/30/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/30/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFUnA 9/30/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHpS 9/30/2024 <0.003 µg/L 0.003 µg/L Not Detected
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.