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Quechan Utility

Arizona — Community Water System — PWSID: 090400089

System Information

PWSID090400089
System NameQuechan Utility
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedFeb 2, 1984
Last ReportedDec 31, 2025

Location & Contact

StateArizona
CityYuma
ZIP Code85366
AddressP.O. Box 1899
OrganizationQuechan Indian Tribe
Phone—

Population & Service

Population Served5,660
Service Connections1,201

Drinking Water Violations (623)

This water system has 623 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, 2025 — E. COLI MR No Yes — — — Unaddressed — Ground Water Rule
Jul 1, 2025 Sep 30, 2025 Nitrite MR No Yes — 1 mg/L — Archived Sep 30, 2025 Nitrate Rule
Jun 1, 2025 — E. COLI MR No Yes — — — Unaddressed — Ground Water Rule
Jun 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 22, 2025 Revised Total Coliform Rule
May 31, 2025 — Groundwater Rule TT Yes No — — — Unaddressed — Ground Water Rule
May 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 22, 2025 Revised Total Coliform Rule
May 1, 2025 — E. COLI MR No Yes — — — Unaddressed — Ground Water Rule
May 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 22, 2025 Revised Total Coliform Rule
May 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 22, 2025 Revised Total Coliform Rule
Apr 1, 2025 — E. COLI MR No Yes — — — Unaddressed — Ground Water Rule
Jan 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Mar 4, 2025 Revised Total Coliform Rule
Jan 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Mar 4, 2025 Revised Total Coliform Rule
Jan 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Mar 4, 2025 Revised Total Coliform Rule
Jan 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Mar 4, 2025 Revised Total Coliform Rule
Nov 16, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Unaddressed — Lead and Copper Rule Revisions
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Jan 1, 2022 Dec 31, 2022 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Dec 11, 2021 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Dec 11, 2021 — Groundwater Rule TT Yes No — — — Resolved Apr 25, 2023 Ground Water Rule
Jul 1, 2020 Sep 30, 2020 Nitrate MR No Yes — 10 mg/L — Resolved Sep 30, 2020 Nitrate Rule
Apr 1, 2020 Jun 30, 2020 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Picloram MR No Yes — 0.5 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Endothall MR No Yes — 0.1 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Jun 30, 2020 Radionuclides and Revised Rad Rule
Apr 1, 2020 Jun 30, 2020 Diquat MR No Yes — 0.02 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2020 Volatile Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Dalapon MR No Yes — 0.2 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Xylenes, Total MR No Yes — 10 mg/L — Resolved Jun 30, 2020 Volatile Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Jun 30, 2020 Volatile Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2020 Nitrate Rule
Apr 1, 2020 Jun 30, 2020 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Glyphosate MR No Yes — 0.7 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Simazine MR No Yes — 0.004 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Jun 30, 2020 Volatile Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Jun 30, 2020 Volatile Organic Chemicals
Apr 1, 2020 Jun 30, 2020 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 2,4-D MR No Yes — 0.07 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Jun 30, 2020 Volatile Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Styrene MR No Yes — 0.1 mg/L — Resolved Jun 30, 2020 Volatile Organic Chemicals
Apr 1, 2020 Jun 30, 2020 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Jun 30, 2020 Volatile Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2020 Synthetic Organic Chemicals
Apr 1, 2020 Jun 30, 2020 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2020 Volatile 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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