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CHEYENNE-ARAPAHO (CONCHO)

Oklahoma — Community Water System — PWSID: OK2000905

System Information

PWSIDOK2000905
System NameCHEYENNE-ARAPAHO (CONCHO)
System TypeCommunity Water System
Water SourceGround Water
Activity StatusInactive
Owner TypeNative American
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedMar 11, 1980
Last ReportedNov 14, 2025

Location & Contact

StateOklahoma
CityCONCHO
ZIP Code73022
AddressMelvin Romannose, Community Development
OrganizationCHEYENNE-ARAPAHO (CONCHO)
Phone405-422-7546

Population & Service

Population Served2,050
Service Connections8

Drinking Water Violations (677)

This water system has 677 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
Sep 1, 2013 Sep 30, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 3, 2013 Total Coliform Rule
Sep 1, 2013 Sep 30, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 3, 2013 Total Coliform Rule
Sep 1, 2013 Sep 30, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 3, 2013 Total Coliform Rule
Jan 1, 2013 — Lead and Copper Rule MR No No — TT — Resolved Sep 3, 2013 Lead and Copper Rule
Jan 1, 2013 — Lead and Copper Rule MR No No — TT — Resolved Sep 3, 2013 Lead and Copper Rule
Jan 1, 2013 — Lead and Copper Rule MR No No — TT — Resolved Sep 3, 2013 Lead and Copper Rule
Nov 1, 2012 Nov 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2012 Total Coliform Rule
Nov 1, 2012 Nov 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2012 Total Coliform Rule
Nov 1, 2012 Nov 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2012 Total Coliform Rule
Nov 1, 2012 Nov 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2012 Total Coliform Rule
Nov 1, 2012 Nov 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Sep 3, 2013 Consumer Confidence Rule
Jul 1, 2012 — Lead and Copper Rule MR No No — TT — Resolved Sep 3, 2013 Lead and Copper Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 — Lead and Copper Rule MR No No — TT — Resolved Sep 3, 2013 Lead and Copper Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Sep 3, 2013 Consumer Confidence Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Sep 3, 2013 Consumer Confidence Rule
Jul 1, 2012 — Lead and Copper Rule MR No No — TT — Resolved Sep 3, 2013 Lead and Copper Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Jun 1, 2012 Jun 30, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 30, 2012 Total Coliform Rule
Jun 1, 2012 Jun 30, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 30, 2012 Total Coliform Rule
Jun 1, 2012 Jun 30, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 30, 2012 Total Coliform Rule
Jun 1, 2012 Jun 30, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 30, 2012 Total Coliform Rule
Jun 1, 2012 Jun 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2012 Total Coliform Rule
Jun 1, 2012 Jun 30, 2012 E. COLI MR No Yes — — — Resolved Jun 30, 2012 Ground Water Rule
Jun 1, 2012 Jun 30, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 30, 2012 Total Coliform Rule
Jun 1, 2012 Jun 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2012 Total Coliform Rule
Jun 1, 2012 Jun 30, 2012 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jun 30, 2012 Total Coliform Rule
Jun 1, 2012 Jun 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2012 Total Coliform 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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