PlainWater
States → Rhode Island

QUONSET BUSINESS PARK

PWS ID: RI1592025 · NORTH KINGSTOWN, Rhode Island 02852

PFAS Detected

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

Population Served
13,000
Total Violations
259
Health-Based Violations
59
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
State
Connections
275
County
Washington
School/Daycare
No
MCL Violations
55
Monitoring Violations
130
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 55 2011
Interim Enhanced Surface Water Treatment Rule Other 42 2023
Coliform (TCR) Other 20 1991
Lead and Copper Rule MR 18 2023
Coliform (TCR) MR 13 2011
Revised Total Coliform Rule RPT 5 2025
Lead and Copper Rule TT 4 2022
TTHM MR 3 2023
Chlorine MR 3 2023
Nitrate MR 3 2023
Methoxychlor MR 3 2023
Dalapon MR 3 2023
Di(2-ethylhexyl) adipate MR 3 2023
Simazine MR 3 2023
Di(2-ethylhexyl) phthalate MR 3 2023
Picloram MR 3 2023
Dinoseb MR 3 2023
Aldicarb sulfoxide MR 3 2023
Aldicarb sulfone MR 3 2023
Atrazine MR 3 2023
Heptachlor MR 3 2023
Heptachlor epoxide MR 3 2023
Benzo(a)pyrene MR 3 2023
Pentachlorophenol MR 3 2023
1,2-DIBROMO-3-CHLOROPROPANE MR 3 2023
Chlordane MR 3 2023
HEXACHLOROBENZENE MR 3 2023
Aldicarb MR 3 2023
Endrin MR 3 2023
2,4,5-TP MR 3 2023

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 27 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
PFMPA 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
9Cl-PF3ONS 9/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
HFPO-DA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/17/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/17/2024 <0.007 µg/L 0.007 µg/L Not Detected
ADONA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/17/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFDA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/17/2024 <0.006 µg/L 0.006 µg/L Not Detected
lithium 9/17/2024 <9 µg/L 9 µg/L Not Detected
PFBS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/17/2024 0.0055 µg/L 0.003 µg/L Detected
PFNA 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/17/2024 0.0040 µg/L 0.004 µg/L Detected
PFOA 9/17/2024 0.0078 µg/L 0.004 µg/L Detected
PFHpA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/17/2024 0.0086 µg/L 0.003 µg/L Detected
PFNA 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/17/2024 0.0095 µg/L 0.004 µg/L Detected
PFDA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/17/2024 0.0045 µg/L 0.003 µg/L Detected
PFUnA 9/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 9/17/2024 35.8000 µg/L 9 µg/L Detected
ADONA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/17/2024 <0.004 µg/L 0.004 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.