Is East Hampton Wpca - Royal Oaks Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Middlesex

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.

health-based violations

283

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2015-04-01
TT	Health-based	Resolved	2015-04-01
TT	Health-based	Resolved	2015-04-01
TT	Health-based	Resolved	2015-04-01
MR	Monitoring	Resolved	2025-10-01
MR	Monitoring	Resolved	2025-10-01
MR	Monitoring	Resolved	2025-04-01 → 2025-06-30
MR	Monitoring	Resolved	2025-04-01 → 2025-06-30
MR	Monitoring	Resolved	2025-04-01 → 2025-06-30
MR	Monitoring	Resolved	2025-04-01 → 2025-06-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	791.5 µg/L 61% of the EPA limit 1300 µg/L worst single sample: 880 µg/L	58/60	SYR4	2014–2019
Nitrate	3381 µg/L 34% of the EPA limit 10000 µg/L worst single sample: 3840 µg/L	38/40	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	21/21	LCR	2025
Nitrate-Nitrite	3354 µg/L 34% of the EPA limit 10000 µg/L worst single sample: 3840 µg/L	19/20	SYR4	2012–2019
Lead	15.5 µg/L 103% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 19 µg/L	15/60	SYR4	2014–2019
Dibromochloromethane	3.6 µg/L No EPA limit set worst single sample: 4 µg/L	9/18	SYR4	2012–2019
Bromodichloromethane	2.465 µg/L No EPA limit set worst single sample: 2.5 µg/L	8/18	SYR4	2012–2019
Bromoform	1.98 µg/L No EPA limit set worst single sample: 2.4 µg/L	8/18	SYR4	2012–2019
Nitrite	233.7 µg/L 23% of the EPA limit 1000 µg/L worst single sample: 330 µg/L	7/20	SYR4	2012–2019
Chloroform	1.18 µg/L No EPA limit set worst single sample: 1.2 µg/L	5/18	SYR4	2012–2019
Combined Radium (-226 And -228)	3.1325 pCi/L 63% of the EPA limit 5 pCi/L worst single sample: 3.2 pCi/L	4/5	SYR4	2014–2019
Fluoride	225.5 µg/L 5.6% of the EPA limit 4000 µg/L worst single sample: 230 µg/L	4/5	SYR4	2015–2019
Gross Alpha, Excl. Radon And U	8.03375 pCi/L 54% of the EPA limit 15 pCi/L worst single sample: 8.15 pCi/L	4/5	SYR4	2014–2019
Total Haloacetic Acids (HAA5)	1.09 µg/L 1.8% of the EPA limit 60 µg/L worst single sample: 1.1 µg/L	3/8	SYR4	2012–2019
Barium	37.5 µg/L 1.9% of the EPA limit 2000 µg/L worst single sample: 39 µg/L	2/5	SYR4	2015–2019
Chromium	1 µg/L 1% of the EPA limit 100 µg/L	2/5	SYR4	2015–2019
TTHM	3.765 µg/L 4.7% of the EPA limit 80 µg/L worst single sample: 3.9 µg/L	2/8	SYR4	2012–2019
Cadmium	0.5000 µg/L 10% of the EPA limit 5 µg/L	1/5	SYR4	2015–2019
Combined Uranium	0.3370 µg/L 1.1% of the EPA limit 30 µg/L	1/5	SYR4	2014–2019

56 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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: CERRETA, PAUL M
Phone: 207-267-4142
Email: [email protected]

Frequently asked questions about East Hampton Wpca - Royal Oaks

Is East Hampton Wpca - Royal Oaks tap water safe to drink?

EPA monitoring detected 19 contaminants in East Hampton Wpca - Royal Oaks'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 East Hampton Wpca - Royal Oaks's water?

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

How many people does East Hampton Wpca - Royal Oaks serve?

East Hampton Wpca - Royal Oaks reports serving 328 people in Connecticut, per its EPA record.

Has East Hampton Wpca - Royal Oaks had any water quality violations?

The EPA has 283 violations on file for East Hampton Wpca - Royal Oaks, of which 4 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.