City of Yonkers (NY) Water Quality

City of Yonkers is a large public water system in EPA region 2 that provides tap water for the 10583, 10702 - 10705, 10708 zip codes. It has 15 facilities where the water supply was tested for 85 chemical contaminants that impact tap water quality and human health.

The maximum reported level of 1-butanol was 3.3 µg/L. The maximum reported level of HAA5 (five regulated haloacetic acids) was 69.9 µg/L. Some (1 of 32 or 3%) of the latest water samples showed levels of HAA5 (five regulated haloacetic acids) that were at or above unsafe concentration levels. The maximum reported level of Manganese was 23.2 µg/L. There were 3 contamintants found in the City of Yonkers 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 (8)

1,2,3-trichloropropane (8)

1,3-butadiene (8)

1,4-dioxane (8)

1-butanol (8)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (6)

17-alpha-ethynylestradiol (8)

17-beta-estradiol (8)

1H,1H,2H,2H-perfluorodecane sulfonic acid (6)

1H,1H,2H,2H-perfluorohexane sulfonic acid (6)

1H,1H,2H,2H-perfluorooctane sulfonic acid (6)

2,4-dinitrotoluene (12)

2,6-dinitrotoluene (12)

2-methoxyethanol (8)

2-propen-1-ol (Allyl Alcohol) (8)

4,4'-dichloro dichlorophenyl ethylene (DDE) (12)

4,8-dioxa-3H-perfluorononanoic acid (6)

4-androstene-3,17-dione (8)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (6)

alpha-hexachlorocyclohexane (8)

anatoxin-a (16)

bromochloromethane (Halon 1011) (8)

bromomethane (8)

Butylated Hydroxyanisole (8)

chlorate (16)

chlorodifluoromethane (HCFC-22) (8)

chloromethane (8)

chlorpyrifos (8)

chromium (16)

chromium-6 (16)

cobalt (16)

cylindrospermopsin (16)

dimethipin (8)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (12)

equilin (8)

estriol (8)

estrone (8)

ethoprop (8)

Germanium (8)

HAA5 (five regulated haloacetic acids) (32)

HAA6Br (six brominated haloacetic acids) (32)

HAA9 (nine haloacetic acids) (32)

hexafluoropropylene oxide dimer acid (GenX) (6)

lithium (6)

Manganese (8)

methyl-tertiary-butyl-ether (MTBE) (12)

molinate (12)

molybdenum (16)

N-ethyl perfluorooctanesulfonamidoacetic acid (6)

N-methyl perfluorooctanesulfonamidoacetic acid (6)

nitrobenzene (12)

nonafluoro-3,6-dioxaheptanoic acid (6)

o-toluidine (8)

oxyfluorfen (8)

perchlorate (6)

perfluoro(2-ethoxyethane)sulfonic acid (6)

perfluoro-3-methoxypropanoic acid (6)

perfluoro-4-methoxybutanoic acid (6)

perfluorobutanesulfonic acid (14)

perfluorobutanoic acid (6)

perfluorodecanoic acid (6)

perfluorododecanoic acid (6)

perfluoroheptanesulfonic acid (6)

perfluoroheptanoic acid (14)

perfluorohexanesulfonic acid (14)

perfluorohexanoic acid (6)

perfluorononanoic acid (14)

perfluorooctanesulfonic acid (14)

perfluorooctanoic acid (14)

perfluoropentanesulfonic acid (6)

perfluoropentanoic acid (6)

perfluorotetradecanoic acid (6)

perfluorotridecanoic acid (6)

perfluoroundecanoic acid (6)

profenofos (8)

quinoline (8)

s-ethyl-dipropylthiocarbamate (EPTC) (12)

strontium (16)

tebuconazole (8)

terbacil (12)

testosterone (8)

total microcystins (16)

Total Permethrin (8)

tribufos (8)

vanadium (16)

Sampling Facilities

Hillview Pump Station CC to NYC's Catskill Aqueduc
Surface Water (SW)

Hillview TreatedEntry Point to the Distribution System (EP)

Crisfield St. HS CC to WCWD#1 48 Kensico Line"
Surface Water (SW)

Crisfield High ServiceEntry Point to the Distribution System (EP)

St. Vladimirs' Monastery
Surface Water (SW)

Stage 2 D/DBPRs Sampling Location #1Distribution System (DS)

Dunkin Donuts-Central Park Ave.
Surface Water (SW)

Stage 2 D/DBPR Sampling Location #2Distribution System (DS)

200 Boulder Trail
Surface Water (SW)

Stage 2 D/DBPR Sampling Location #3Distribution System (DS)

St. Joseph's Cemetery - Truman & Tompkin
Surface Water (SW)

Stage 2 D/DBPR Sampling Location #4Distribution System (DS)

Cola Senior Center, North Broadway
Surface Water (SW)

Stage 2 D/DBPR Sampling Location #5Distribution System (DS)

Glenrowan Restaurant - Midland Avenue
Surface Water (SW)

Stage 2 D/DBPR Sampling Location #6Distribution System (DS)

Yonkers Middle School - Rockland Avenue
Surface Water (SW)

Stage 2 D/DBPR Sampling Location #7Distribution System (DS)

Nepperhan Community Center - Warburton Ave.
Surface Water (SW)

Stage 2 D/DBPR Sampling Location #8Distribution System (DS)

Distribution System
Surface Water (SW)

DSMRT for Hillview TPMaximum Residence Time (MR)
DSMRT for Crisfield St. HS TPMaximum Residence Time (MR)

CRISFIELD HIGH SERVICE (WCWD#1- 48" KENSICO)
Surface Water (SW)

CRISFIELD ST. HIGH SERVICE (KENSICO TREATED)Entry Point to the Distribution System (EP)

WESTCHESTER COUNTY WD #1-48 INCH KENSICO LINE
Surface Water (SW)

48 INCH PIPELINE KENSICO RESR (SR)

CONSEC CON NYC CATSKILL AQUEDUCT (SOURCE WATER)
Surface Water (SW)

NYC CATSKILL AQUEDUCT SOUTH SHAFT 18SR (SR)

CONSEC CON WCWD #1 48" DELAWARE SOURCE
Surface Water (SW)

NYC DELAWARE AQUEDUCT SOUTH SHAFT 18SR (SR)

FAQ

Is City of Yonkers tap water safe to drink?

When was City of Yonkers last tested for water contamination?

The latest water samples were taken on April 8th, 2025.