Is Rockville Mill Hopkinton, Llc Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
Other	Monitoring	Resolved	2023-07-01
Other	Monitoring	Resolved	2023-07-01
Other	Monitoring	Resolved	2023-07-01
MR	Monitoring	Resolved	2017-01-01
MR	Monitoring	Resolved	2017-01-01
MR	Monitoring	Resolved	2017-01-01
MR	Monitoring	Resolved	2017-01-01
MR	Monitoring	Resolved	2017-01-01
Other	Monitoring	Resolved	2015-12-09
Other	Monitoring	Resolved	2015-12-09

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	196 µg/L 15% of the EPA limit 1300 µg/L worst single sample: 422 µg/L	21/21	SYR4	2012–2017
Lead	5.15 µg/L 34% of the EPA limit 15 µg/L worst single sample: 6 µg/L	18/21	SYR4	2012–2017
Nitrate	950 µg/L 9.5% of the EPA limit 10000 µg/L	14/14	SYR4	2012–2018
Lead	0.0022 mg/L 15% of the EPA limit 0.0150 mg/L	5/5	LCR	2023
Nitrate-Nitrite	966 µg/L 9.7% of the EPA limit 10000 µg/L worst single sample: 970 µg/L	5/5	SYR4	2014–2019
Barium	18 µg/L 0.9% of the EPA limit 2000 µg/L	4/4	SYR4	2012–2018
Di(2-ethylhexyl) Phthalate	2.85 µg/L 48% of the EPA limit 6 µg/L worst single sample: 3 µg/L	4/9	SYR4	2012–2018
Chromium	2 µg/L 2% of the EPA limit 100 µg/L	2/4	SYR4	2012–2018
Combined Radium (-226 And -228)	1.82 pCi/L 36% of the EPA limit 5 pCi/L	1/5	SYR4	2012–2019
Methoxychlor	0.1000 µg/L 0.3% of the EPA limit 40 µg/L	1/9	SYR4	2012–2018

60 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneFluorideGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: ANGEVINE, FRANKLIN
Phone: 617-535-3392
Email: [email protected]

Frequently asked questions about Rockville Mill Hopkinton, Llc

Is Rockville Mill Hopkinton, Llc tap water safe to drink?

EPA monitoring detected 10 contaminants in Rockville Mill Hopkinton, Llc'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 Rockville Mill Hopkinton, Llc'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 Rockville Mill Hopkinton, Llc serve?

Rockville Mill Hopkinton, Llc reports serving 28 people in Massachusetts, per its EPA record.

Has Rockville Mill Hopkinton, Llc had any water quality violations?

The EPA has 14 violations on file for Rockville Mill Hopkinton, Llc, of which 0 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.