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UMATILLA, CITY OF

Oregon — Community Water System — PWSID: OR4100914

System Information

PWSIDOR4100914
System NameUMATILLA, CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1979
Last ReportedDec 23, 2025

Location & Contact

StateOregon
CityUMATILLA
ZIP Code97882
AddressPO BOX 130
OrganizationUMATILLA, CITY OF
Phone541-922-3226

Population & Service

Population Served8,256
Service Connections2,120

Drinking Water Violations (111)

This water system has 111 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Aug 16, 2025 — E. COLI MR No Yes — — — Resolved Aug 18, 2025 Ground Water Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Aug 8, 2025 Consumer Confidence Rule
Feb 1, 2025 Feb 28, 2025 Revised Total Coliform Rule MON No No — — — Resolved Feb 28, 2025 Revised Total Coliform Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Jul 26, 2024 Consumer Confidence Rule
Mar 1, 2024 Mar 31, 2024 Revised Total Coliform Rule MON No No — — — Resolved Mar 31, 2024 Revised Total Coliform Rule
Oct 1, 2021 Oct 31, 2021 Revised Total Coliform Rule MON No No — — — Resolved Oct 31, 2021 Revised Total Coliform Rule
Jan 1, 2020 Dec 31, 2020 COLIPHAGE MR No Yes — — — Resolved Dec 31, 2020 Ground Water Rule
Jan 1, 2005 Dec 31, 2007 Hexachlorocyclopentadiene MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 HEXACHLOROBENZENE MR No No — 0.001 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Heptachlor MR No No — 0.0004 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,2-DIBROMO-3-CHLOROPROPANE MR No No — 0.0002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 BHC-GAMMA MR No No — 0.0002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Heptachlor MR No No — 0.0004 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 ETHYLENE DIBROMIDE MR No No — 0.00005 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Benzo(a)pyrene MR No No — 0.0002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4,5-TP MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Heptachlor epoxide MR No No — 0.0002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Carbofuran MR No No — 0.04 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Dinoseb MR No No — 0.007 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Picloram MR No No — 0.5 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Simazine MR No No — 0.004 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Endothall MR No No — 0.1 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Diquat MR No No — 0.02 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Dalapon MR No No — 0.2 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Toxaphene MR No No — 0.003 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Methoxychlor MR No No — 0.04 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 BHC-GAMMA MR No No — 0.0002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Endrin MR No No — 0.002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Chlordane MR No No — 0.002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Total Polychlorinated Biphenyls (PCB) MR No No — 0.0005 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Pentachlorophenol MR No No — 0.001 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Benzo(a)pyrene MR No No — 0.0002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4,5-TP MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4-D MR No No — 0.07 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Heptachlor epoxide MR No No — 0.0002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Atrazine MR No No — 0.003 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Dinoseb MR No No — 0.007 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Di(2-ethylhexyl) phthalate MR No No — 0.006 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Endothall MR No No — 0.1 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Hexachlorocyclopentadiene MR No No — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 LASSO MR No No — — — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Picloram MR No No — 0.5 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 2,4-D MR No No — 0.07 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 1,2-DIBROMO-3-CHLOROPROPANE MR No No — 0.0002 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 ETHYLENE DIBROMIDE MR No No — 0.00005 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 HEXACHLOROBENZENE MR No No — 0.001 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Total Polychlorinated Biphenyls (PCB) MR No No — 0.0005 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 LASSO MR No No — — — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Atrazine MR No No — 0.003 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Pentachlorophenol MR No No — 0.001 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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