Is Simpson Mill Road Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: Hillsborough

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
MCL	Health-based	Resolved	2013-09-01 → 2013-09-30
MCL	Health-based	Resolved	2013-09-01 → 2013-09-30
MCL	Health-based	Resolved	2013-09-01 → 2013-09-30
MCL	Health-based	Resolved	2013-09-01 → 2013-09-30
MCL	Health-based	Resolved	2013-08-01 → 2013-08-31
MCL	Health-based	Resolved	2013-08-01 → 2013-08-31
MCL	Health-based	Resolved	2013-08-01 → 2013-08-31
MCL	Health-based	Resolved	2013-08-01 → 2013-08-31
MCL	Health-based	Resolved	2012-11-01 → 2012-11-30
MCL	Health-based	Resolved	2012-11-01 → 2012-11-30

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	1543.52 µg/L 119% of the EPA limit, at the 95th percentile of samples — 1300 µg/L worst single sample: 1584.81 µg/L	21/21	SYR4	2015–2018
Lead	4.03566 µg/L 27% of the EPA limit 15 µg/L worst single sample: 4.36416 µg/L	4/19	SYR4	2016–2017
Barium	5.25 µg/L 0.3% of the EPA limit 2000 µg/L worst single sample: 5.3 µg/L	2/2	SYR4	2015–2018
Bromodichloromethane	0.8850 µg/L No EPA limit set worst single sample: 0.9000 µg/L	2/8	SYR4	2014–2019
Dibromochloromethane	0.6950 µg/L No EPA limit set worst single sample: 0.7000 µg/L	2/8	SYR4	2014–2019
TTHM	2.72 µg/L 3.4% of the EPA limit 80 µg/L worst single sample: 2.8 µg/L	2/8	SYR4	2014–2019
Chloroform	1.2 µg/L No EPA limit set	1/8	SYR4	2014–2019
Chromium	2.3 µg/L 2.3% of the EPA limit 100 µg/L	1/2	SYR4	2015–2018
Combined Radium (-226 And -228)	0.3000 pCi/L 6% of the EPA limit 5 pCi/L	1/1	SYR4	2014
Gross Alpha, Excl. Radon And U	2.4 pCi/L 16% of the EPA limit 15 pCi/L	1/1	SYR4	2014

65 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, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrateNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MORGAN MCGRATH

Frequently asked questions about Simpson Mill Road

Is Simpson Mill Road tap water safe to drink?

EPA monitoring detected 10 contaminants in Simpson Mill Road'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 Simpson Mill Road's water?

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

How many people does Simpson Mill Road serve?

Simpson Mill Road reports serving 35 people in Massachusetts, per its EPA record.

Has Simpson Mill Road had any water quality violations?

The EPA has 26 violations on file for Simpson Mill Road, of which 22 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.