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TERRACE LAKES WATER COMPANY

Idaho — Community Water System — PWSID: ID4080047

System Information

PWSIDID4080047
System NameTERRACE LAKES WATER COMPANY
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 13, 1980
Last ReportedDec 19, 2025

Location & Contact

StateIdaho
CityNEW PLYMOUTH
ZIP Code83655
Address6781 Little Lane
OrganizationCORDOVA, MARY
Phone208-440-4756

Population & Service

Population Served475
Service Connections420

Drinking Water Violations (125)

This water system has 125 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
Apr 1, 2025 Jun 30, 2025 Di(2-ethylhexyl) phthalate MCL Yes No .027 MG/L 0.006 mg/L .006 Archived Jun 30, 2025 Synthetic Organic Chemicals
Apr 1, 2025 Jun 30, 2025 Di(2-ethylhexyl) phthalate MCL Yes No .027 MG/L 0.006 mg/L .006 Archived Jun 30, 2025 Synthetic Organic Chemicals
Apr 1, 2025 Jun 30, 2025 Di(2-ethylhexyl) phthalate MCL Yes No .027 MG/L 0.006 mg/L .006 Archived Jun 30, 2025 Synthetic Organic Chemicals
Jan 1, 2025 Mar 31, 2025 Di(2-ethylhexyl) phthalate MCL Yes No .027 MG/L 0.006 mg/L .006 Archived Mar 31, 2025 Synthetic Organic Chemicals
Jan 1, 2025 Mar 31, 2025 Di(2-ethylhexyl) phthalate MCL Yes No .027 MG/L 0.006 mg/L .006 Archived Mar 31, 2025 Synthetic Organic Chemicals
Jan 1, 2025 Mar 31, 2025 Di(2-ethylhexyl) phthalate MCL Yes No .027 MG/L 0.006 mg/L .006 Archived Mar 31, 2025 Synthetic Organic Chemicals
Oct 1, 2024 Dec 31, 2024 Di(2-ethylhexyl) phthalate MCL Yes No .036 MG/L 0.006 mg/L .006 Archived Dec 31, 2024 Synthetic Organic Chemicals
Oct 1, 2024 Dec 31, 2024 Di(2-ethylhexyl) phthalate MCL Yes No .036 MG/L 0.006 mg/L .006 Archived Dec 31, 2024 Synthetic Organic Chemicals
Oct 1, 2024 Dec 31, 2024 Di(2-ethylhexyl) phthalate MCL Yes No .036 MG/L 0.006 mg/L .006 Archived Dec 31, 2024 Synthetic Organic Chemicals
Jul 1, 2024 Sep 30, 2024 Di(2-ethylhexyl) phthalate MCL Yes No .036 MG/L 0.006 mg/L .006 Archived Sep 30, 2024 Synthetic Organic Chemicals
Jul 1, 2024 Sep 30, 2024 Di(2-ethylhexyl) phthalate MCL Yes No .036 MG/L 0.006 mg/L .006 Archived Sep 30, 2024 Synthetic Organic Chemicals
Jul 1, 2024 Sep 30, 2024 Di(2-ethylhexyl) phthalate MCL Yes No .036 MG/L 0.006 mg/L .006 Archived Sep 30, 2024 Synthetic Organic Chemicals
Jul 1, 2023 Sep 30, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Unaddressed — Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Dec 31, 2025 TTHM MR No Yes — 0.080 mg/L — Unaddressed — Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2022 Dec 31, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2022 Revised Total Coliform Rule
Dec 1, 2022 Dec 31, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2022 Revised Total Coliform Rule
Dec 1, 2022 Dec 31, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2022 Revised Total Coliform Rule
Oct 1, 2022 Dec 31, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 Dec 31, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 Dec 31, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2021 Dec 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Nov 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2021 Dec 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Nov 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2021 Dec 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Nov 30, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 17, 2018 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Nov 17, 2018 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Oct 1, 2018 Dec 31, 2018 Chlorine MR No Yes — 4.0 mg/L — Archived Dec 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 Chlorine MR No Yes — 4.0 mg/L — Archived Dec 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 Chlorine MR No Yes — 4.0 mg/L — Archived Mar 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 Chlorine MR No Yes — 4.0 mg/L — Archived Mar 31, 2018 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 Chlorine MR No Yes — 4.0 mg/L — Archived Jun 30, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 Chlorine MR No Yes — 4.0 mg/L — Archived Jun 30, 2017 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 Chlorine MR No Yes — 4.0 mg/L — Archived Mar 31, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 Chlorine MR No Yes — 4.0 mg/L — Archived Mar 31, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Chlorine MR No Yes — 4.0 mg/L — Archived Dec 31, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Chlorine MR No Yes — 4.0 mg/L — Archived Dec 31, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Chlorine MR No Yes — 4.0 mg/L — Archived Dec 31, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Chlorine MR No Yes — 4.0 mg/L — Archived Dec 31, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2013 Jun 30, 2013 Coliform (TCR) MR No No — 5% of samples — Archived Jun 30, 2013 Total Coliform Rule
May 1, 2013 May 31, 2013 Coliform (TCR) MR No No — 5% of samples — Archived May 31, 2013 Total Coliform Rule
Jan 1, 2013 Jan 31, 2013 Coliform (TCR) MR No No — 5% of samples — Archived Jan 31, 2013 Total Coliform Rule
Dec 1, 2012 Dec 31, 2012 Coliform (TCR) MR No No — 5% of samples — Archived Dec 31, 2012 Total Coliform Rule
Jul 1, 2012 Sep 30, 2012 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Archived Sep 30, 2012 Synthetic Organic Chemicals
Jul 1, 2010 Sep 30, 2010 Fluoride MCL Yes No 9.7 MG/L 4.0 mg/L 4 Archived Sep 30, 2010 Inorganic Chemicals
Jul 1, 2010 Sep 30, 2010 Fluoride MCL Yes No 9.7 MG/L 4.0 mg/L 4 Archived Sep 30, 2010 Inorganic Chemicals
Jul 1, 2010 Sep 30, 2010 Fluoride MCL Yes No 9.7 MG/L 4.0 mg/L 4 Archived Sep 30, 2010 Inorganic Chemicals
Jul 1, 2010 Sep 30, 2010 Fluoride MCL Yes No 9.7 MG/L 4.0 mg/L 4 Archived Sep 30, 2010 Inorganic Chemicals
Apr 1, 2010 Jun 30, 2010 Fluoride MCL Yes No 9.5 MG/L 4.0 mg/L 4 Archived Jun 30, 2010 Inorganic 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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