Jericho Water District is a large public water system in EPA region 2 that provides tap water for the 11791 zip codes. It has 45 facilities where the water supply was tested for 94 chemical contaminants that impact tap water quality and human health.
The maximum reported level of HAA5 (five regulated haloacetic acids) was 0.35 µg/L. The maximum reported level of Manganese was 32.5 µg/L. There were 2 contamintants found in the Jericho Water District water supply at levels that were above the minimum reporting level.
Well 3 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 6 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 9 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 11 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 12 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 13 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 14 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 16 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 17 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 18 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 19 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 23 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 27 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Wells 29 & 30 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 4 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 31 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 28
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 7 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 22 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 25 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Well 26 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Wells 20 & 21 Treatment
Ground Water (GW)Entry Point to Dist. SystemEntry Point to the Distribution System (EP)
Syosset Library
Ground Water (GW)DBPMAX1/Syosset LibraryDistribution System (DS)
DBPMAX2/L.I. Biological Assoc. (Cold Spring Lab)Distribution System (DS)
DBPMAX3/Nassau County Museum - Brookville Rd.Distribution System (DS)
DBPMAX4/Old Brookville P.D.Distribution System (DS)
Syosset LibraryMaximum Residence Time (MR)
L.I. Biological LabMaximum Residence Time (MR)
Well 5 Treatment
Ground Water (GW)EPTDS from Well 5Entry Point to the Distribution System (EP)
N 04245 - WELL 9
Ground Water (GW)WELL 9 SRN04245SR (SR)
N 07446 - WELL 16
Ground Water (GW)WELL 16 SRN07446SR (SR)
N 07772 - WELL 18
Ground Water (GW)WELL 18 SRN07772SR (SR)
N 06093 - WELL 13
Ground Water (GW)WELL 13 SRN06093SR (SR)
N 07773 - WELL 19
Ground Water (GW)WELL 19 SRN07773SR (SR)
N 05201 - WELL 11
Ground Water (GW)WELL 11 SRN05201SR (SR)
N 07593 - WELL 17
Ground Water (GW)WELL 17 SRN07593SR (SR)
N 03475 - WELL 7
Ground Water (GW)WELL 7 SRN03475SR (SR)
N 03474 - WELL 6
Ground Water (GW)WELL 6 SRN03474SR (SR)
N 00570 - WELL 5
Ground Water (GW)WELL 5 SRN00570SR (SR)
N 12734 - WELL 4
Ground Water (GW)WELL 4 SRN12734SR (SR)
N 00198 - WELL 3
Ground Water (GW)WELL 3 SRN00198SR (SR)
N 06092 - WELL 12
Ground Water (GW)WELL 12 SRN06092SR (SR)
N 11295 - WELL 30
Ground Water (GW)WELL 30 SRN11295SR (SR)
N 08713 - WELL 27
Ground Water (GW)WELL 27 SRN08713SR (SR)
N 08355 - WELL 25
Ground Water (GW)WELL 25 SRN08355SR (SR)
N 11107 - WELL 29
Ground Water (GW)WELL 29 SRN11107SR (SR)
N 08043 - WELL 23
Ground Water (GW)WELL 23 SRN08043SR (SR)
N 10149 - WELL 20
Ground Water (GW)WELL 20 SRN10149SR (SR)
N 07781 - WELL 22
Ground Water (GW)WELL 22 SRN07781SR (SR)
WELL 21
Ground Water (GW)WELL 21 SRN12795SR (SR)
The latest water samples were taken on December 4th, 2023.