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Tap water quality report

Kingston Water District

EPA monitoring tested this supplier for 96 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

96
contaminants tested
11
detected
3,968
people served
5
health-based violations
Rhode Island rankingsLead in Rhode IslandPFAS in Rhode Island
Water source
Ground water
Ownership
Local government
Counties served
Washington

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

5
health-based violations
317
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2013-10-01 → 2013-10-31
MCL Health-based Resolved 2013-10-01 → 2013-10-31
MCL Health-based Resolved 2013-10-01 → 2013-10-31
MCL Health-based Resolved 2013-10-01 → 2013-10-31
MCL Health-based Resolved 2013-10-01 → 2013-10-31
MR Monitoring Resolved 2023-10-01 → 2023-12-31
MR Monitoring Resolved 2023-10-01 → 2023-12-31
MR Monitoring Resolved 2023-10-01 → 2023-12-31
MR Monitoring Resolved 2023-10-01 → 2023-12-31
MR Monitoring Resolved 2023-10-01 → 2023-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0368 µg/L 5/6 2024
Pfhpa 0.0052 µg/L 4/6 2024
Pfhxa 0.0112 µg/L 4/6 2024
PFOA 0.0062 µg/L 4/6 2024
Pfpea 0.0091 µg/L 4/6 2024

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
8650 µg/L 87%
of the EPA limit 10000 µg/L
worst single sample: 8900 µg/L
146/146 SYR4 2012–2019
Copper
12 µg/L 0.9%
of the EPA limit 1300 µg/L
worst single sample: 19.1 µg/L
21/21 SYR4 2015–2017
Lead
0.0029 mg/L 19%
of the EPA limit 0.0150 mg/L
 21/21 LCR 2023
Nitrate-Nitrite
8350 µg/L 84%
of the EPA limit 10000 µg/L
worst single sample: 8700 µg/L
8/8 SYR4 2014–2018
Barium
16.1 µg/L 0.8%
of the EPA limit 2000 µg/L
worst single sample: 17 µg/L
7/7 SYR4 2014–2018
Combined Radium (-226 And -228)
1.22 pCi/L 24%
of the EPA limit 5 pCi/L
 1/6 SYR4 2015–2017
85 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPfdaPfdoaPfeesaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CHAMPI, CHRISTOPHER
Phone
401-783-5494
Email
[email protected]

Frequently asked questions about Kingston Water District

Is Kingston Water District tap water safe to drink?

EPA monitoring detected 11 contaminants in Kingston Water District's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Kingston Water District's water?

EPA monitoring detected Nitrate, Copper, Lead, Nitrate-Nitrite, Barium, and others. The full list with the level and data source for each is above.

How many people does Kingston Water District serve?

Kingston Water District reports serving 3,968 people in Rhode Island, per its EPA record.

Has Kingston Water District had any water quality violations?

The EPA has 317 violations on file for Kingston Water District, of which 5 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.