Tap WaterIndex

Tap water quality report

Hingham Heights

EPA monitoring tested this supplier for 42 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

42
contaminants tested
11
detected
90
people served
25
health-based violations
Water source
Ground water
Ownership
Private
Counties served
Penobscot

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.

25
health-based violations
264
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2025-03-29
TT Health-based Resolved 2025-03-29
TT Health-based Resolved 2025-03-29
TT Health-based Resolved 2025-03-29
TT Health-based Resolved 2025-03-06
TT Health-based Resolved 2025-03-06
TT Health-based Resolved 2025-03-06
TT Health-based Resolved 2024-11-09
TT Health-based Resolved 2024-11-09
TT Health-based Resolved 2024-11-09

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
200 µg/L 2%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Copper
47.75 µg/L 3.7%
of the EPA limit 1300 µg/L
worst single sample: 56 µg/L
12/12 SYR4 2014–2019
Lead
0.00070 mg/L 4.7%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Lead
1.226 µg/L 8.2%
of the EPA limit 15 µg/L
worst single sample: 1.3 µg/L
5/12 SYR4 2014–2019
Antimony, Total
0.7190 µg/L 12%
of the EPA limit 6 µg/L
worst single sample: 0.7300 µg/L
2/2 SYR4 2014–2017
Barium
59.8 µg/L 3%
of the EPA limit 2000 µg/L
worst single sample: 60 µg/L
2/2 SYR4 2014–2017
Chromium
3.985 µg/L 4%
of the EPA limit 100 µg/L
worst single sample: 4.1 µg/L
2/2 SYR4 2014–2017
Combined Uranium
1 µg/L 3.3%
of the EPA limit 30 µg/L
 2/2 SYR4 2017–2018
Nitrate-Nitrite
197 µg/L 2%
of the EPA limit 10000 µg/L
worst single sample: 200 µg/L
2/2 SYR4 2014–2017
Combined Radium (-226 And -228)
1.21 pCi/L 24%
of the EPA limit 5 pCi/L
 1/1 SYR4 2016
Gross Alpha, Excl. Radon And U
3.51 pCi/L 23%
of the EPA limit 15 pCi/L
 1/2 SYR4 2012–2018
31 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneArsenicBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideDichloromethaneEthylbenzeneFluorideMercuryNitriteSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Frequently asked questions about Hingham Heights

Is Hingham Heights tap water safe to drink?

EPA monitoring detected 11 contaminants in Hingham Heights'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 Hingham Heights's water?

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

How many people does Hingham Heights serve?

Hingham Heights reports serving 90 people, per its EPA record.

Has Hingham Heights had any water quality violations?

The EPA has 264 violations on file for Hingham Heights, of which 25 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.