Mahwah Water Department (NJ) Water Quality

Mahwah Water Department is a large public water system in EPA region 2 that provides tap water for the 07430 zip codes. It has 10 facilities where the water supply was tested for 78 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 22.21 µg/L. The maximum reported level of Manganese was 12.2 µg/L. There were 2 contamintants found in the Mahwah Water Department water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (6)

1,2,3-trichloropropane (6)

1,3-butadiene (6)

1,4-dioxane (6)

1-butanol (7)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (9)

1H,1H,2H,2H-perfluorodecane sulfonic acid (9)

1H,1H,2H,2H-perfluorohexane sulfonic acid (9)

1H,1H,2H,2H-perfluorooctane sulfonic acid (9)

2,4-dinitrotoluene (6)

2,6-dinitrotoluene (6)

2-methoxyethanol (7)

2-propen-1-ol (Allyl Alcohol) (7)

4,4'-dichloro dichlorophenyl ethylene (DDE) (6)

4,8-dioxa-3H-perfluorononanoic acid (9)

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

alpha-hexachlorocyclohexane (12)

anatoxin-a (8)

bromochloromethane (Halon 1011) (6)

bromomethane (6)

Butylated Hydroxyanisole (12)

chlorate (8)

chlorodifluoromethane (HCFC-22) (6)

chloromethane (6)

chlorpyrifos (12)

chromium (16)

chromium-6 (15)

cobalt (16)

cylindrospermopsin (8)

dimethipin (12)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (5)

ethoprop (12)

Germanium (12)

HAA5 (five regulated haloacetic acids) (16)

HAA6Br (six brominated haloacetic acids) (16)

HAA9 (nine haloacetic acids) (16)

hexafluoropropylene oxide dimer acid (GenX) (9)

lithium (9)

Manganese (12)

methyl-tertiary-butyl-ether (MTBE) (6)

molinate (6)

molybdenum (16)

N-ethyl perfluorooctanesulfonamidoacetic acid (9)

N-methyl perfluorooctanesulfonamidoacetic acid (9)

nitrobenzene (6)

nonafluoro-3,6-dioxaheptanoic acid (9)

o-toluidine (12)

oxyfluorfen (12)

perchlorate (6)

perfluoro(2-ethoxyethane)sulfonic acid (9)

perfluoro-3-methoxypropanoic acid (9)

perfluoro-4-methoxybutanoic acid (9)

perfluorobutanesulfonic acid (17)

perfluorobutanoic acid (9)

perfluorodecanoic acid (9)

perfluorododecanoic acid (9)

perfluoroheptanesulfonic acid (9)

perfluoroheptanoic acid (17)

perfluorohexanesulfonic acid (17)

perfluorohexanoic acid (9)

perfluorononanoic acid (17)

perfluorooctanesulfonic acid (17)

perfluorooctanoic acid (17)

perfluoropentanesulfonic acid (9)

perfluoropentanoic acid (9)

perfluorotetradecanoic acid (9)

perfluorotridecanoic acid (9)

perfluoroundecanoic acid (9)

profenofos (12)

quinoline (12)

s-ethyl-dipropylthiocarbamate (EPTC) (6)

strontium (16)

tebuconazole (12)

terbacil (6)

total microcystins (7)

Total Permethrin (12)

tribufos (12)

vanadium (16)

Sampling Facilities

Ford Wells TP
Ground Water (GW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Well 16 TP
Ground Water (GW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Well 17 TP
Ground Water (GW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Veolia Water Consecutive Connection
Surface Water (SW)

Representative IntertieEntry Point to the Distribution System (EP)

Well 19 TP
Ground Water (GW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Distribution System
Surface Water (SW)

33 Nilsen Ave.Distribution System (DS)
18 Janice Ct.Distribution System (DS)
56 E.. Mahwah Rd.Distribution System (DS)
1 Rozanski LaneDistribution System (DS)

Distribution System
Multiple Sources (MX)

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

FARDALE WELL 1
Ground Water (GW)

FARDALE WELL 1 NJ0233001-12Entry Point to the Distribution System (EP)

OLD STATION WELL FACILITY
Ground Water (GW)

OLD STATION WELL FA NJ0233001-18Entry Point to the Distribution System (EP)

WELL 19/RAMAPO VALLEY ROAD
Ground Water (GW)

WELL 19/RAMAPO VALL NJ0233001-19Entry Point to the Distribution System (EP)

FAQ

Is Mahwah Water Department tap water safe to drink?

When was Mahwah Water Department last tested for water contamination?

The latest water samples were taken on May 28th, 2025.