PlainWater

CASTLE PINES VILLAGE MD

PWS ID: CO0118005 · CASTLE ROCK, Colorado 80108

PFAS Detected

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

Population Served
5,656
Total Violations
173
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
2,031
County
Douglas
School/Daycare
No
MCL Violations
0
Monitoring Violations
170
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 8 2007
Fluoride MR 6 2007
Arsenic MR 6 2007
Barium MR 6 2007
Mercury MR 6 2007
Nickel MR 6 2007
Antimony, Total MR 6 2007
Beryllium, Total MR 6 2007
Selenium MR 6 2007
Thallium, Total MR 6 2007
Chromium MR 6 2007
Cadmium MR 6 2007
BHC-GAMMA MR 3 2007
Methoxychlor MR 3 2007
Diquat MR 3 2007
Endothall MR 3 2007
OXAMYL MR 3 2007
Simazine MR 3 2007
Hexachlorocyclopentadiene MR 3 2007
Aldicarb MR 3 2007
Atrazine MR 3 2007
Heptachlor epoxide MR 3 2007
2,4-D MR 3 2007
2,4,5-TP MR 3 2007
HEXACHLOROBENZENE MR 3 2007
Benzo(a)pyrene MR 3 2007
Pentachlorophenol MR 3 2007
Total Polychlorinated Biphenyls (PCB) MR 3 2007
Chlordane MR 3 2007
Dinoseb MR 3 2007

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFMPA 8/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 8/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/8/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/8/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFBS 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 8/8/2023 27.0000 µg/L 9 µg/L Detected
6:2 FTS 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/8/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 8/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/8/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/8/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/8/2023 <0.006 µg/L 0.006 µg/L Not Detected
ADONA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 7/9/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFDA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 7/9/2024 30.9000 µg/L 9 µg/L Detected
NEtFOSAA 7/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 7/9/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFDoA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 7/9/2024 <0.006 µg/L 0.006 µg/L Not Detected
4:2 FTS 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/9/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 7/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/9/2024 <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.