City of Pomona Water Dept. is a large public water system in EPA region 9 that provides tap water for the 91709, 91710, 91767, 91768 zip codes. It has 52 facilities where the water supply was tested for 85 chemical contaminants that impact tap water quality and human health.
The maximum reported level of HAA5 (five regulated haloacetic acids) was 14.2 µg/L. The maximum reported level of Manganese was 3 µg/L. There were 2 contamintants found in the City of Pomona Water Dept. water supply at levels that were above the minimum reporting level.
Reservoir 5
Multiple Sources (MX)R05-TEntry Point to the Distribution System (EP)
Reservoir 8
Multiple Sources (MX)R08Entry Point to the Distribution System (EP)
Reservoir 9
Multiple Sources (MX)R09Entry Point to the Distribution System (EP)
Reservoir 7- Distribution Water
Ground Water (GW)R07Entry Point to the Distribution System (EP)
Reservoir 10- Distribution Water
Multiple Sources (MX)R10Entry Point to the Distribution System (EP)
R02 Nitrate Blending Facility
Multiple Sources (MX)R02Entry Point to the Distribution System (EP)
Reservoir 6
Ground Water (GW)R06-EEntry Point to the Distribution System (EP)
Well 37 Plant Effluent
Ground Water (GW)W37-TEntry Point to the Distribution System (EP)
Well 27
Ground Water (GW)W27-TEntry Point to the Distribution System (EP)
Well 28
Ground Water (GW)W28-TEntry Point to the Distribution System (EP)
Stage 2 DBP Sites
Multiple Sources (MX)DBP2-DS11Distribution System (DS)
DBP2-DS14Distribution System (DS)
DBP2-DS19Distribution System (DS)
DBP2-DS23Distribution System (DS)
DBP2-R02Distribution System (DS)
DBP2-DBP13Distribution System (DS)
DBP2-DBP17Distribution System (DS)
DBP2-DBP18Distribution System (DS)
R09Maximum Residence Time (MR)
DBP17Maximum Residence Time (MR)
DS18Maximum Residence Time (MR)
Reservoir 13
Multiple Sources (MX)R13Entry Point to the Distribution System (EP)
Well 27
Ground Water (GW)W27Entry Point to the Distribution System (EP)
Well 28
Ground Water (GW)W28Entry Point to the Distribution System (EP)
Distribution System - GW
Ground Water (GW)DS13Maximum Residence Time (MR)
DS16Maximum Residence Time (MR)
DS22Maximum Residence Time (MR)
DS27Maximum Residence Time (MR)
Distribution Site #06
Ground Water (GW)DS-06Maximum Residence Time (MR)
Distribution Site #16
Ground Water (GW)DS-16Maximum Residence Time (MR)
Distribution Site #18
Multiple Sources (MX)DS-18Maximum Residence Time (MR)
Distribution Site #26
Multiple Sources (MX)DS-26Maximum Residence Time (MR)
Reservoir 9
Multiple Sources (MX)R09Maximum Residence Time (MR)
WELL 02
Ground Water (GW)WELL 02             01S/08W-28F01SR (SR)
WELL 03
Ground Water (GW)WELL 03             01S/08W-18J02SR (SR)
WELL 04
Ground Water (GW)WELL 04             01S/08W-28G01SR (SR)
WELL 06
Ground Water (GW)WELL 06             01S/08W-28E01SR (SR)
WELL 07 - INACTIVE
Ground Water (GW)WELL 07 - INACTIVE  01S/08W-17K02SR (SR)
WELL 10
Ground Water (GW)WELL 10             01S/08W-28G02SR (SR)
WELL 11
Ground Water (GW)WELL 11             01S/08W-28M01SR (SR)
WELL 12
Ground Water (GW)WELL 12             01S/08W-28M02SR (SR)
WELL 13
Ground Water (GW)WELL 13             01S/08W-09D01SR (SR)
WELL 14
Ground Water (GW)WELL 14             01S/08W-28N01SR (SR)
WELL 15
Ground Water (GW)WELL 15             01S/08W-28N02SR (SR)
WELL 16
Ground Water (GW)WELL 16             01S/08W-28F02SR (SR)
WELL 17
Ground Water (GW)WELL 17             01S/08W-28L01SR (SR)
WELL 18
Ground Water (GW)WELL 18             01S/08W-28M03SR (SR)
WELL 21
Ground Water (GW)WELL 21             01S/08W-31J01SR (SR)
WELL 23
Ground Water (GW)WELL 23             01S/08W-33D01SR (SR)
WELL 25
Ground Water (GW)WELL 25             01S/08W-33E01SR (SR)
WELL 26
Ground Water (GW)WELL 26             01S/08W-33C01SR (SR)
WELL 27
Ground Water (GW)WELL 27             01S/08W-15D01SR (SR)
WELL 28
Ground Water (GW)WELL 28             01S/08W-27H01SR (SR)
WELL 29
Ground Water (GW)WELL 29             02S/08W-04J01SR (SR)
WELL 30
Ground Water (GW)WELL 30             01S/08W-21R01SR (SR)
WELL T-01
Ground Water (GW)WELL T-01           01S/08W-03F02SR (SR)
WELL T-03
Ground Water (GW)WELL T-03           01S/08W-03F03SR (SR)
TUNNEL WELL 04
Ground Water (GW)TUNNEL WELL 04      01S/08W-03F05SR (SR)
TUNNEL WELL 02
Ground Water (GW)TUNNEL WELL 02      01S/08W-03F04SR (SR)
PEDLEY FILTRATION PLANT - RAW
Surface Water (SW)PEDLEY FILTRATION P 1910126-048SR (SR)
WELL 05B
Ground Water (GW)WELL 05B            1910126-049SR (SR)
WELL 08B - INACTIVE
Ground Water (GW)WELL 08B - INACTIVE 1910126-050SR (SR)
WELL 09B
Ground Water (GW)WELL 09B            1910126-051SR (SR)
WELL 34
Ground Water (GW)WELL 34             1910126-052SR (SR)
WELL 35
Ground Water (GW)WELL 35             1910126-053SR (SR)
The latest water samples were taken on May 15th, 2024.