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ENTERPRISE, CITY OF

Oregon — Community Water System — PWSID: OR4100278

System Information

PWSIDOR4100278
System NameENTERPRISE, 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
CityENTERPRISE
ZIP Code97828
Address102 E NORTH ST
OrganizationENTERPRISE, CITY OF
Phone541-426-3093

Population & Service

Population Served2,107
Service Connections1,325

Drinking Water Violations (38)

This water system has 38 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
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Mar 19, 2025 Consumer Confidence Rule
Apr 1, 2021 Jun 30, 2021 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2021 Nitrate Rule
Oct 1, 2020 Oct 31, 2020 Revised Total Coliform Rule MON No No — — — Resolved Oct 31, 2020 Revised Total Coliform Rule
Oct 1, 2017 Oct 31, 2017 Revised Total Coliform Rule MON No No — — — Resolved Oct 31, 2017 Revised Total Coliform Rule
Jul 1, 2008 Jul 31, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2008 Total Coliform Rule
Feb 1, 2008 Feb 29, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 29, 2008 Total Coliform Rule
Jan 1, 2007 Dec 31, 2007 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2007 Nitrate Rule
Jan 1, 2005 Dec 31, 2007 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2007 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2005 Dec 31, 2007 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2007 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2007 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2007 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2002 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2002 Nitrate Rule
Jul 1, 2000 Jul 31, 2000 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2000 Total Coliform Rule
Jun 1, 1998 Jun 30, 1998 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 1998 Total Coliform Rule
Oct 1, 1997 Oct 31, 1997 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 1997 Total Coliform Rule
Jan 1, 1997 Dec 31, 1997 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 1997 Nitrate Rule
Dec 1, 1994 Dec 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 1994 Total Coliform Rule
Dec 1, 1994 Dec 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 1994 Total Coliform Rule
Dec 1, 1994 Dec 31, 1994 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 1994 Total Coliform Rule
Dec 1, 1994 Dec 31, 1994 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 1994 Total Coliform Rule
Jul 1, 1993 Jul 31, 1993 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 1993 Total Coliform Rule
Nov 1, 1992 Nov 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1992 Total Coliform Rule
Nov 1, 1992 Nov 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Archived Nov 30, 1992 Total Coliform Rule
Aug 1, 1992 Aug 31, 1992 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 1992 Total Coliform Rule
May 1, 1992 May 31, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Resolved May 31, 1992 Total Coliform Rule
Dec 1, 1991 Dec 31, 1991 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 1991 Total Coliform Rule
Jun 24, 1979 Jun 23, 1980 Fluoride MR No No — 4.0 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 24, 1979 Jun 23, 1980 Chromium MR No No — 0.1 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 24, 1979 Jun 23, 1980 Cadmium MR No No — 0.005 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 24, 1979 Jun 23, 1980 Mercury MR No No — 0.002 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 24, 1979 Jun 23, 1980 Arsenic MR No No — 0.010 mg/L — Archived Jun 23, 1980 Arsenic Rule
Jun 24, 1979 Jun 23, 1980 Nitrate MR No No — 10 mg/L — Archived Jun 23, 1980 Nitrate Rule
Jun 24, 1979 Jun 23, 1980 Selenium MR No No — 0.05 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 24, 1979 Jun 23, 1980 Barium MR No No — 2 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 1, 1976 May 31, 1980 Gross Alpha, Excl. Radon and U MR No No — 15 pCi/L — Archived May 31, 1980 Radionuclides and Revised Rad Rule
Jun 1, 1976 May 31, 1980 Combined Radium (-226 and -228) MR No No — 5 pCi/L — Archived May 31, 1980 Radionuclides and Revised Rad Rule

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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