Ontario Municipal Utilities Company is a large public water system in EPA region 9 that provides tap water for the 91761, 91762 zip codes. It has 66 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 2.6 µg/L. The maximum reported level of HAA5 (five regulated haloacetic acids) was 21.1 µg/L. The maximum reported level of Manganese was 6.2 µg/L. There were 3 contamintants found in the Ontario Municipal Utilities Company water supply at levels that were above the minimum reporting level.
CA3610034_035_035
Surface Water (SW)WFA CONNECTION - TREATEDEntry Point to the Distribution System (EP)
CA3610034_036_036
Ground Water (GW)WELL 38 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_037_037
Ground Water (GW)PHILADELPHIA - MILLIKEN SSEntry Point to the Distribution System (EP)
CA3610034_039_039
Ground Water (GW)ARCHIBALD PUMP STATIONEntry Point to the Distribution System (EP)
CA3610034_051_051
Ground Water (GW)CDA II TURNOUT (DIRECT)Entry Point to the Distribution System (EP)
Well 49 EP TreatedEntry Point to the Distribution System (EP)
Well 49 EP - TreatedEntry Point to the Distribution System (EP)
CA3610034_053_053
Ground Water (GW)WELL 41 IX FINISHED BLEND EFFLUENTEntry Point to the Distribution System (EP)
CA3610034_802_802
Ground Water (GW)WELL 24 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_806_806
Ground Water (GW)WELL 29 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_807_807
Ground Water (GW)WELL 30 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_808_808
Ground Water (GW)WELL 31 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_810_810
Ground Water (GW)WELL 35 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_811_811
Ground Water (GW)WELL 36 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_814_814
Ground Water (GW)WELL 40 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_816_816
Ground Water (GW)WELL 49 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_818_818
Ground Water (GW)WELL 45 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_819_819
Ground Water (GW)WELL 46 EP - TREATEDEntry Point to the Distribution System (EP)
CA3610034_820_820
Ground Water (GW)WELL 47 EP - TREATEDEntry Point to the Distribution System (EP)
3610034-047
Ground Water (GW)JOHN GALVIN IX TP EFFLUENTEntry Point to the Distribution System (EP)
WFA 1Entry Point to the Distribution System (EP)
3610034812
Ground Water (GW)WELL 37 EP - TREATEDEntry Point to the Distribution System (EP)
3610034-601
Multiple Sources (MX)1303 WEST E STREETDistribution System (DS)
3610034-602
Multiple Sources (MX)2135 SOUTH MAGNOLIA AVENUEDistribution System (DS)
3610034-603
Multiple Sources (MX)656 WEST EL MORADO COURTDistribution System (DS)
3610034-604
Multiple Sources (MX)1210 EAST DEODAR STREETDistribution System (DS)
3610034-605
Multiple Sources (MX)1238 EAST RAYMOND STREETDistribution System (DS)
3610034-606
Multiple Sources (MX)1317 WEST RALSTON STREETDistribution System (DS)
3610034-607
Multiple Sources (MX)1832 NORTH VIRGINIA AVENUEDistribution System (DS)
3610034-608
Multiple Sources (MX)1206 WEST 4TH STREETDistribution System (DS)
Well 46
Ground Water (GW)Well 46 EP TreatedEntry Point to the Distribution System (EP)
Well 20
Ground Water (GW)Well 20 EP TreatedEntry Point to the Distribution System (EP)
Well 20 EP - TreatedEntry Point to the Distribution System (EP)
WELL 20 01S/07W-13R02SR (SR)
Well 24
Ground Water (GW)Well 24 EP TreatedEntry Point to the Distribution System (EP)
Well 24 EP - TreatedEntry Point to the Distribution System (EP)
WELL 24 01S/07W-24M01SR (SR)
Well 25
Ground Water (GW)Well 25 EP TreatedEntry Point to the Distribution System (EP)
Well 25 EP - TreatedEntry Point to the Distribution System (EP)
WELL 25 01S/07W-23M01SR (SR)
Well 26
Ground Water (GW)Well 26 EP TreatedEntry Point to the Distribution System (EP)
Well 26 EP - TreatedEntry Point to the Distribution System (EP)
WELL 26 01S/07W-26A01SR (SR)
Well 27
Ground Water (GW)Well 27 EP TreatedEntry Point to the Distribution System (EP)
Well 27 EP - TreatedEntry Point to the Distribution System (EP)
WELL 27 01S/06W-31D01SR (SR)
Well 29
Ground Water (GW)Well 29 EP TreatedEntry Point to the Distribution System (EP)
Well 29 EP - TreatedEntry Point to the Distribution System (EP)
WELL 29 01S/07W-22Q02SR (SR)
Well 30
Ground Water (GW)Well 30 EPEntry Point to the Distribution System (EP)
Well 30 EPEntry Point to the Distribution System (EP)
WELL 30 - INACTIVE 01S/06W-29D02SR (SR)
Well 31
Ground Water (GW)Well 31 EP TreatedEntry Point to the Distribution System (EP)
Well 31 EP - TreatedEntry Point to the Distribution System (EP)
WELL 31 01S/06W-29H02SR (SR)
Well 34
Ground Water (GW)Well 34 EP TreatedEntry Point to the Distribution System (EP)
Well 34 EP - TreatedEntry Point to the Distribution System (EP)
WELL 34 01S/07W-32C01SR (SR)
Well 35
Ground Water (GW)Well 35 EP TreatedEntry Point to the Distribution System (EP)
Well 35 EP - TreatedEntry Point to the Distribution System (EP)
WELL 35 01S/07W-29D01SR (SR)
Well 36
Ground Water (GW)Well 36 EP TreatedEntry Point to the Distribution System (EP)
Well 36 EP - TreatedEntry Point to the Distribution System (EP)
WELL 36 01S/07W-34A03SR (SR)
Well 37
Ground Water (GW)Well 37 EP TreatedEntry Point to the Distribution System (EP)
Well 37 EP - TreatedEntry Point to the Distribution System (EP)
WELL 37 036/034-001SR (SR)
Well 38
Ground Water (GW)Well 38 EP TreatedEntry Point to the Distribution System (EP)
Well 38 EP - TreatedEntry Point to the Distribution System (EP)
WELL 38 01S/07W-23G01SR (SR)
Well 39
Ground Water (GW)Well 39 EPEntry Point to the Distribution System (EP)
Well 39 EPEntry Point to the Distribution System (EP)
Well 40
Ground Water (GW)Well 40 EP TreatedEntry Point to the Distribution System (EP)
Well 40 EP - TreatedEntry Point to the Distribution System (EP)
Well 41
Ground Water (GW)Well 41 EP TreatedEntry Point to the Distribution System (EP)
Well 41 EP - TreatedEntry Point to the Distribution System (EP)
WFA 2
Surface Water (SW)WFA 2Entry Point to the Distribution System (EP)
CDA 1
Ground Water (GW)CDA 1Entry Point to the Distribution System (EP)
CDA 2
Ground Water (GW)CDA 2Entry Point to the Distribution System (EP)
Ion Exchange Treatment Plant
Ground Water (GW)IXEFFLUENTEntry Point to the Distribution System (EP)
Well 45
Ground Water (GW)Well 45 EP TreatedEntry Point to the Distribution System (EP)
Well 47
Ground Water (GW)Well 47 EP TreatedEntry Point to the Distribution System (EP)
Distribution System - GW
Ground Water (GW)MRT01Maximum Residence Time (MR)
MRT09Maximum Residence Time (MR)
MRT32Maximum Residence Time (MR)
Distribution System - MX
Multiple Sources (MX)MRT25Maximum Residence Time (MR)
Well 16
Ground Water (GW)Well 16 EP - TreatedEntry Point to the Distribution System (EP)
WELL 16 01S/07W-28R02SR (SR)
Well 17
Ground Water (GW)Well 17 EP - TreatedEntry Point to the Distribution System (EP)
WELL 17 01S/07W-29A01SR (SR)
MRT01
Multiple Sources (MX)MRT01Maximum Residence Time (MR)
MRT09
Multiple Sources (MX)MRT09Maximum Residence Time (MR)
MRT25
Multiple Sources (MX)MRT25Maximum Residence Time (MR)
MRT32
Multiple Sources (MX)MRT32Maximum Residence Time (MR)
WELL 03A
Ground Water (GW)WELL 03A 01S/07W-21C01SR (SR)
WELL 04 - INACTIVE
Ground Water (GW)WELL 04 - INACTIVE 01S/07W-21D01SR (SR)
WELL 09
Ground Water (GW)WELL 09 01S/07W-18G01SR (SR)
WELL 11
Ground Water (GW)WELL 11 01S/07W-28M02SR (SR)
WELL 15
Ground Water (GW)WELL 15 01S/08W-25Q02SR (SR)
WELL 18
Ground Water (GW)WELL 18 01S/07W-22B01SR (SR)
WELL 19
Ground Water (GW)WELL 19 01S/07W-23D01SR (SR)
()LD (LD)
MD (MD)
Maximum Residence Time (MR)
The latest water samples were taken on February 28th, 2024.