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US GYPSUM

Oklahoma — Non-Transient Non-Community — PWSID: OK2000601

System Information

PWSIDOK2000601
System NameUS GYPSUM
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedMar 11, 1980
Last ReportedNov 14, 2025

Location & Contact

StateOklahoma
CitySOUTHARD
ZIP Code73770
AddressJulie Houk
OrganizationUS GYPSUM
Phone580-822-6167

Population & Service

Population Served280
Service Connections30

Drinking Water Violations (276)

This water system has 276 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
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Jul 15, 2025 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Jul 15, 2025 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Jul 15, 2025 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Jul 15, 2025 Lead and Copper Rule Revisions
Jan 1, 2024 Mar 31, 2024 Nitrate-Nitrite MR No Yes — — — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate-Nitrite MR No Yes — — — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate-Nitrite MR No Yes — — — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate-Nitrite MR No Yes — — — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2021 Mar 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2021 Revised Total Coliform Rule
Jan 1, 2021 Mar 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2021 Revised Total Coliform Rule
Jan 1, 2021 Mar 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2021 Revised Total Coliform Rule
Jan 1, 2021 Mar 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2021 Mar 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2021 Revised Total Coliform Rule
Aug 5, 2020 — E. COLI MR No Yes — — — Resolved Nov 3, 2020 Ground Water Rule
Aug 5, 2020 — E. COLI MR No Yes — — — Resolved Nov 3, 2020 Ground Water Rule
Aug 5, 2020 — E. COLI MR No Yes — — — Resolved Nov 3, 2020 Ground Water Rule
Aug 5, 2020 — E. COLI MR No Yes — — — Resolved Nov 3, 2020 Ground Water Rule
Aug 1, 2020 Aug 31, 2020 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2020 Revised Total Coliform Rule
Aug 1, 2020 Aug 31, 2020 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2020 Revised Total Coliform Rule
Aug 1, 2020 Aug 31, 2020 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2020 Revised Total Coliform Rule
Aug 1, 2020 Aug 31, 2020 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2020 Revised Total Coliform Rule
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 2,4-D MR No Yes — 0.07 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 2,4-D MR No Yes — 0.07 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 2,4-D MR No Yes — 0.07 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Carbofuran MR No Yes — 0.04 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Carbofuran MR No Yes — 0.04 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Glyphosate MR No Yes — 0.7 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Glyphosate MR No Yes — 0.7 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Carbofuran MR No Yes — 0.04 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Glyphosate MR No Yes — 0.7 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Glyphosate MR No Yes — 0.7 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Carbofuran MR No Yes — 0.04 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 2,4-D MR No Yes — 0.07 mg/L — Resolved Sep 30, 2020 Synthetic Organic Chemicals
Jul 1, 2020 Sep 30, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 Nitrate-Nitrite MCL Yes No 15 MG/L — 10 Resolved Dec 31, 2018 Nitrate Rule
Oct 1, 2018 Dec 31, 2018 Nitrate-Nitrite MCL Yes No 15 MG/L — 10 Resolved Dec 31, 2018 Nitrate 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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