Tap WaterIndex

← Connecticut

Tap water quality report

Preston Plains Water Company

EPA monitoring tested this supplier for 73 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
9
detected
550
people served
13
health-based violations
Connecticut rankingsLead in ConnecticutPFAS in Connecticut
Water source
Ground water
Ownership
Private
Counties served
New London

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.

13
health-based violations
119
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2021-09-01 → 2021-09-30
MCL Health-based Resolved 2013-06-01 → 2013-06-30
MCL Health-based Resolved 2013-06-01 → 2013-06-30
MCL Health-based Resolved 2013-06-01 → 2013-06-30
MCL Health-based Resolved 2013-06-01 → 2013-06-30
MCL Health-based Resolved 2010-10-01 → 2010-12-31
MCL Health-based Resolved 2010-10-01 → 2010-12-31
MCL Health-based Resolved 2010-10-01 → 2010-12-31
MCL Health-based Resolved 2010-10-01 → 2010-12-31
MCL Health-based Resolved 1993-10-01 → 1993-12-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
663 µg/L 51%
of the EPA limit 1300 µg/L
 30/30 SYR4 2012–2018
Lead
32 µg/L 213%
of the EPA limit, in the worst sample — 15 µg/L
 16/30 SYR4 2012–2018
Nitrate
2160 µg/L 22%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0053 mg/L 35%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2024
Nitrate-Nitrite
2160 µg/L 22%
of the EPA limit 10000 µg/L
 8/8 SYR4 2012–2019
Arsenic
2.3 µg/L 23%
of the EPA limit 10 µg/L
 3/3 SYR4 2012–2018
Barium
7 µg/L 0.4%
of the EPA limit 2000 µg/L
 3/3 SYR4 2012–2018
Combined Uranium
2.1 µg/L 7%
of the EPA limit 30 µg/L
 3/3 SYR4 2013–2018
Fluoride
120 µg/L 3%
of the EPA limit 4000 µg/L
 1/3 SYR4 2012–2018
64 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CHARITY, BRYAN
Phone
860-396-7552
Email
bcharity@mptn-nsn.gov

Frequently asked questions about Preston Plains Water Company

Is Preston Plains Water Company tap water safe to drink?

EPA monitoring detected 9 contaminants in Preston Plains Water Company'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 Preston Plains Water Company's water?

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

How many people does Preston Plains Water Company serve?

Preston Plains Water Company reports serving 550 people in Connecticut, per its EPA record.

Has Preston Plains Water Company had any water quality violations?

The EPA has 119 violations on file for Preston Plains Water Company, of which 13 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.