Marblehead Water Dept. (MA) Water Quality

Marblehead Water Dept. is a large public water system in EPA region 1 that provides tap water for the 01945 zip codes. It has 3 facilities where the water supply was tested for 68 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 18.681 µg/L. The maximum reported level of Manganese was 7.71 µg/L. The maximum reported level of quinoline was 0.027 µg/L. Some (3 of 4 or 75%) of the latest water samples showed levels of quinoline that were at or above unsafe concentration levels. There were 3 contamintants found in the Marblehead Water Dept. water supply at levels that were above the minimum reporting level. 1 of the contaminants were above the reference level, which means they may pose a risk to human health.

Contaminants

1,1-dichloroethane (4)

1,2,3-trichloropropane (4)

1,3-butadiene (4)

1,4-dioxane (4)

1-butanol (4)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (2)

1H,1H,2H,2H-perfluorodecane sulfonic acid (2)

1H,1H,2H,2H-perfluorohexane sulfonic acid (2)

1H,1H,2H,2H-perfluorooctane sulfonic acid (2)

2-methoxyethanol (4)

2-propen-1-ol (Allyl Alcohol) (4)

4,8-dioxa-3H-perfluorononanoic acid (2)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (2)

alpha-hexachlorocyclohexane (4)

anatoxin-a (8)

bromochloromethane (Halon 1011) (4)

bromomethane (4)

Butylated Hydroxyanisole (4)

chlorate (8)

chlorodifluoromethane (HCFC-22) (4)

chloromethane (4)

chlorpyrifos (4)

chromium (7)

chromium-6 (8)

cobalt (8)

cylindrospermopsin (8)

dimethipin (4)

ethoprop (4)

Germanium (4)

HAA5 (five regulated haloacetic acids) (4)

HAA6Br (six brominated haloacetic acids) (4)

HAA9 (nine haloacetic acids) (4)

hexafluoropropylene oxide dimer acid (GenX) (2)

lithium (2)

Manganese (4)

molybdenum (8)

N-ethyl perfluorooctanesulfonamidoacetic acid (2)

N-methyl perfluorooctanesulfonamidoacetic acid (2)

nonafluoro-3,6-dioxaheptanoic acid (2)

o-toluidine (4)

oxyfluorfen (4)

perfluoro(2-ethoxyethane)sulfonic acid (2)

perfluoro-3-methoxypropanoic acid (2)

perfluoro-4-methoxybutanoic acid (2)

perfluorobutanesulfonic acid (6)

perfluorobutanoic acid (2)

perfluorodecanoic acid (2)

perfluorododecanoic acid (2)

perfluoroheptanesulfonic acid (2)

perfluoroheptanoic acid (6)

perfluorohexanesulfonic acid (6)

perfluorohexanoic acid (2)

perfluorononanoic acid (6)

perfluorooctanesulfonic acid (6)

perfluorooctanoic acid (6)

perfluoropentanesulfonic acid (2)

perfluoropentanoic acid (2)

perfluorotetradecanoic acid (2)

perfluorotridecanoic acid (2)

perfluoroundecanoic acid (2)

profenofos (4)

quinoline (4)

strontium (8)

tebuconazole (4)

total microcystins (8)

Total Permethrin (4)

tribufos (4)

vanadium (8)

Sampling Facilities

MWRA Connection
Surface Water (SW)

EPTDS (Booster Station - Meters 149 & 150)Entry Point to the Distribution System (EP)

DISTRIBUTION SYSTEM
Surface Water (SW)

DSDBP - MR-05, Sample Hydrant - 10 Nahant StreetDistribution System (DS)

Distribution System
Surface Water (SW)

Max. Res. Time in Dist. SystemMaximum Residence Time (MR)

FAQ

Is Marblehead Water Dept. tap water safe to drink?

When was Marblehead Water Dept. last tested for water contamination?

The latest water samples were taken on April 10th, 2025.