Water Auth. of Western Nassau (NY) Water Quality

Water Auth. of Western Nassau is a large public water system in EPA region 2 that provides tap water for the 11001, 11010, 11530 zip codes. It has 72 facilities where the water supply was tested for 82 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 5.56 µg/L. The maximum reported level of Manganese was 162 µg/L. There were 2 contamintants found in the Water Auth. of Western Nassau water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (9)

1,2,3-trichloropropane (9)

1,3-butadiene (9)

1,4-dioxane (9)

1-butanol (17)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (26)

17-alpha-ethynylestradiol (18)

17-beta-estradiol (18)

1H,1H,2H,2H-perfluorodecane sulfonic acid (26)

1H,1H,2H,2H-perfluorohexane sulfonic acid (26)

1H,1H,2H,2H-perfluorooctane sulfonic acid (26)

2,4-dinitrotoluene (42)

2,6-dinitrotoluene (42)

2-methoxyethanol (17)

2-propen-1-ol (Allyl Alcohol) (17)

4,4'-dichloro dichlorophenyl ethylene (DDE) (42)

4,8-dioxa-3H-perfluorononanoic acid (26)

4-androstene-3,17-dione (18)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (26)

alpha-hexachlorocyclohexane (17)

bromochloromethane (Halon 1011) (9)

bromomethane (9)

Butylated Hydroxyanisole (17)

chlorate (12)

chlorodifluoromethane (HCFC-22) (9)

chloromethane (9)

chlorpyrifos (17)

chromium (24)

chromium-6 (24)

cobalt (24)

dimethipin (17)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (40)

equilin (18)

estriol (18)

estrone (18)

ethoprop (17)

Germanium (17)

HAA5 (five regulated haloacetic acids) (12)

HAA6Br (six brominated haloacetic acids) (12)

HAA9 (nine haloacetic acids) (12)

hexafluoropropylene oxide dimer acid (GenX) (26)

lithium (26)

Manganese (17)

methyl-tertiary-butyl-ether (MTBE) (42)

molinate (42)

molybdenum (24)

N-ethyl perfluorooctanesulfonamidoacetic acid (26)

N-methyl perfluorooctanesulfonamidoacetic acid (26)

nitrobenzene (42)

nonafluoro-3,6-dioxaheptanoic acid (26)

o-toluidine (17)

oxyfluorfen (17)

perchlorate (44)

perfluoro(2-ethoxyethane)sulfonic acid (26)

perfluoro-3-methoxypropanoic acid (26)

perfluoro-4-methoxybutanoic acid (26)

perfluorobutanesulfonic acid (44)

perfluorobutanoic acid (26)

perfluorodecanoic acid (26)

perfluorododecanoic acid (26)

perfluoroheptanesulfonic acid (26)

perfluoroheptanoic acid (44)

perfluorohexanesulfonic acid (44)

perfluorohexanoic acid (26)

perfluorononanoic acid (44)

perfluorooctanesulfonic acid (44)

perfluorooctanoic acid (44)

perfluoropentanesulfonic acid (26)

perfluoropentanoic acid (26)

perfluorotetradecanoic acid (26)

perfluorotridecanoic acid (26)

perfluoroundecanoic acid (26)

profenofos (17)

quinoline (17)

s-ethyl-dipropylthiocarbamate (EPTC) (42)

strontium (24)

tebuconazole (17)

terbacil (42)

testosterone (18)

Total Permethrin (17)

tribufos (17)

vanadium (24)

Sampling Facilities

Well 20 Treatment
Ground Water (GW)

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

Well 16A Treatment
Ground Water (GW)

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

Well 28 Treatment
Ground Water (GW)

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

Well 30 Treatment
Ground Water (GW)

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

Well 35 & 35A Treatment
Ground Water (GW)

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

Well 40 & 40A Treatment
Ground Water (GW)

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

Well 44 & 44A Treatment
Ground Water (GW)

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

Well 44B & 44C Treatment
Ground Water (GW)

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

Well 25A Treatment
Ground Water (GW)

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

Well 57 & 57A Treatment
Ground Water (GW)

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

Well 15A & 15B Treatment
Ground Water (GW)

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

Well 15C & 15E Treatment
Ground Water (GW)

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

Well 28A & 28B Treatment
Ground Water (GW)

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

Disinfection Byproduct Site 12
Ground Water (GW)

Tulip Bike ShopDistribution System (DS)

Disinfection Byproduct Site 15
Ground Water (GW)

M & G PackagingDistribution System (DS)

Well 20 Treatment
Ground Water (GW)

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

Well 28A/28B Iron Removal
Ground Water (GW)

Iron Removal Plant for 28A and 28BEntry Point to the Distribution System (EP)

Disinfection Byproduct Site 30
Ground Water (GW)

Meacham PharmacyDistribution System (DS)

Disinfection Byproduct Site 42
Ground Water (GW)

Phil-Amy FloristDistribution System (DS)

Disinfection Byproduct Site 43
Ground Water (GW)

PC RichardDistribution System (DS)

Disinfection Byproduct Site 44
Ground Water (GW)

St. John's United ChurchDistribution System (DS)

Well 28 Treatment
Ground Water (GW)

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

Well 30 Treatment
Ground Water (GW)

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

Well 35 & 35A Treatment
Ground Water (GW)

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

Wells 40 & 40A Treatrment
Ground Water (GW)

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

Wells 44,44A,44B, & 44C Treatment
Ground Water (GW)

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

Wells 57 & 57A Treatment
Ground Water (GW)

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

Well 15C & 15E Treatment
Ground Water (GW)

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

Well 16A Treatment
Ground Water (GW)

EPTDS from Well 16AEntry Point to the Distribution System (EP)

Well 28B Treatment
Ground Water (GW)

EPTDS from Well 28BEntry Point to the Distribution System (EP)

Well 15B Treatment
Ground Water (GW)

EPTDS from Well 15BEntry Point to the Distribution System (EP)

Distribution System
Ground Water (GW)

107 Meacham AvenueMaximum Residence Time (MR)
225-08 Jericho Tpke.Maximum Residence Time (MR)
Elmont Road & Stuart AvenueMaximum Residence Time (MR)

WELL 15A TREATMENT
Ground Water (GW)

WELLS 15A, 15C, & 15EEntry Point to the Distribution System (EP)

WELL 28A
Ground Water (GW)

WELL 28A TREATED WELLEntry Point to the Distribution System (EP)

WELL 20 DBP MAX
Ground Water (GW)

DBPMAX5Maximum Residence Time (MR)

WELL 28,28A, & 28B DBP MAX
Ground Water (GW)

DBPMAX7Maximum Residence Time (MR)

WELL 30 DBP MAX
Ground Water (GW)

DBPMAX8Maximum Residence Time (MR)

WELLS 40 & 40A DBP MAX
Ground Water (GW)

DBPMAX11Maximum Residence Time (MR)

WELLS 57 & 57A DBP MAX
Ground Water (GW)

DBPMAX13Maximum Residence Time (MR)

TREATMENT: WELLS 44 & 44A
Ground Water (GW)

N05155/56 - WELL 44 / 44A - EPN 05155/56Entry Point to the Distribution System (EP)

N09151EP - WELL 15A
Ground Water (GW)

N 09151 - WELL 15A - EPN 09151Entry Point to the Distribution System (EP)

N11037EP - WELL 15B
Ground Water (GW)

N 11037 - WELL 15B - EPN 11037Entry Point to the Distribution System (EP)

N10207EP - WELL 15E
Ground Water (GW)

N 10207 - WELL 15E - EPN 10207Entry Point to the Distribution System (EP)

N00017EP - WELL 20
Ground Water (GW)

N00017 - WELL 20 - EPN 00017Entry Point to the Distribution System (EP)

N03720EP - WELL 30
Ground Water (GW)

N03720 - WELL 30 - EPN 03720Entry Point to the Distribution System (EP)

N07445EP - WELL 40A
Ground Water (GW)

N07445 - WELL 40A - EPN 07445Entry Point to the Distribution System (EP)

N07649EP - WELL 57
Ground Water (GW)

N 07649 - WELL 57 - EPN 07649Entry Point to the Distribution System (EP)

N 02414 - WELL 28
Ground Water (GW)

N 02414 - WELL 28 SRN02414SR (SR)

N 04298 - WELL 35A
Ground Water (GW)

N 04298 - WELL 35A SRN04298SR (SR)

N 04077 - WELL 35
Ground Water (GW)

N 04077 - WELL 35 SRN04077SR (SR)

N 04512 - WELL 34
Ground Water (GW)

N 04512 - WELL 34 SRN04512SR (SR)

N 03720 - WELL 30
Ground Water (GW)

N 03720 - WELL 30 SRN03720SR (SR)

N 05156 - WELL 44A
Ground Water (GW)

N 05156 - WELL 44A SRN05156SR (SR)

N 06744 - WELL 44B
Ground Water (GW)

N 06744 - WELL 44B SRN06744SR (SR)

N 06745 - WELL 44C
Ground Water (GW)

N 06745 - WELL 44C SRN06745SR (SR)

N 07649 - WELL 57
Ground Water (GW)

N 07649 - WELL 57 SRN07649SR (SR)

N 07650 - WELL 57A
Ground Water (GW)

N 07650 - WELL 57A SRN07650Entry Point to the Distribution System (EP)

N 07445 - WELL 40A
Ground Water (GW)

N 07445 - WELL 40A SRN07445SR (SR)

N 11647 - WELL 28A
Ground Water (GW)

N 11647 - WELL 28A SRN11647SR (SR)

N 07482 - WELL 25A
Ground Water (GW)

N 07482 - WELL 25A SRN07482SR (SR)

N 00017 - WELL 20
Ground Water (GW)

N 00017 - WELL 20 SRN00017SR (SR)

N 01958 - WELL 16A
Ground Water (GW)

N 01958 - WELL 16A SRN01958SR (SR)

N 10207 - WELL 15E
Ground Water (GW)

N 10207 - WELL 15E SRN10207SR (SR)

N 10206 - WELL 15C
Ground Water (GW)

N 10206 - WELL 15C SRN10206SR (SR)

N 11037 - WELL 15B
Ground Water (GW)

N 11037 - WELL 15B SRN11037SR (SR)

N 09151 - WELL 15A
Ground Water (GW)

N 09151 - WELL 15A SRN09151Entry Point to the Distribution System (EP)

N 00014 - WELL 9
Ground Water (GW)

N 00014 - WELL 9 SRN00014SR (SR)

N 05155 - WELL 44
Ground Water (GW)

N 05155 - WELL 44 SRN05155SR (SR)

N09151EP - WELL 15A
Ground Water (GW)

N 09151 - WELL 15A - EPN 09151Entry Point to the Distribution System (EP)

N07650EP - WELL 57A
Ground Water (GW)

N 07650 - WELL 57A - EPN 07650Entry Point to the Distribution System (EP)

N06744EP - WELL 44B
Ground Water (GW)

N 06744 - WELL 44B - EPN 06744Entry Point to the Distribution System (EP)

N06745EP - WELL 44C
Ground Water (GW)

N 06745 - WELL 44C - EPN 06745Entry Point to the Distribution System (EP)

FAQ

Is Water Auth. of Western Nassau tap water safe to drink?

When was Water Auth. of Western Nassau last tested for water contamination?

The latest water samples were taken on January 25th, 2024.