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CORONADO ELEMENTARY

Arizona — Non-Transient Non-Community — PWSID: AZ0402102

System Information

PWSIDAZ0402102
System NameCORONADO ELEMENTARY
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolYes
WholesalerNo
First ReportedDec 12, 1991
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityHEREFORD
ZIP Code85615
AddressATTN: SHERRI ROSALIK
OrganizationPALOMINAS SCHOOL DIST CORONADO ELEM
Phone928-925-4860

Population & Service

Population Served446
Service Connections2

Drinking Water Violations (71)

This water system has 71 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, 2019 Jul 31, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2019 Jul 31, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2019 Jul 31, 2019 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2019 Jul 31, 2019 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Apr 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 30, 2015 Total Coliform Rule
Apr 1, 2015 Apr 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 30, 2015 Total Coliform Rule
Sep 1, 2013 Sep 30, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2013 Total Coliform Rule
Sep 1, 2013 Sep 30, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2013 Total Coliform Rule
Jan 1, 2013 Jan 31, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2013 Total Coliform Rule
Jan 1, 2013 Jan 31, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2013 Total Coliform Rule
Dec 1, 2010 Dec 31, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2010 Total Coliform Rule
Dec 1, 2010 Dec 31, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2010 Total Coliform Rule
Feb 1, 2004 Feb 29, 2004 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Feb 29, 2004 Total Coliform Rule
Feb 1, 2004 Feb 29, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 29, 2004 Total Coliform Rule
Oct 1, 2003 Oct 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2003 Total Coliform Rule
Feb 1, 2003 Feb 28, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2003 Total Coliform Rule
Jan 1, 2002 Dec 31, 2002 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Jan 1, 2002 Dec 31, 2002 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2002 Volatile Organic Chemicals
Aug 1, 2001 Aug 31, 2001 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2001 Total Coliform Rule
Jan 1, 1998 Dec 31, 2000 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2000 Inorganic Chemicals
Jan 1, 1998 Dec 31, 2000 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2000 Inorganic Chemicals
Jan 1, 1998 Dec 31, 2000 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2000 Synthetic Organic Chemicals
Jan 1, 1998 Dec 31, 2000 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2000 Synthetic Organic Chemicals
Jan 1, 1998 Dec 31, 2000 Nickel MR No Yes — — — Resolved Dec 31, 2000 Inorganic Chemicals
Jan 1, 1998 Dec 31, 2000 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2000 Synthetic Organic Chemicals
Jan 1, 1998 Dec 31, 2000 LASSO MR No Yes — — — Resolved Dec 31, 2000 Synthetic Organic Chemicals
Jan 1, 1998 Dec 31, 2000 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2000 Inorganic Chemicals
Jan 1, 1998 Dec 31, 2000 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2000 Synthetic Organic Chemicals
Jan 1, 1998 Dec 31, 2000 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2000 Synthetic Organic Chemicals
Jan 1, 1998 Dec 31, 2000 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2000 Volatile Organic Chemicals
Jan 1, 1998 Dec 31, 2000 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2000 Volatile Organic Chemicals
Jan 1, 1998 Dec 31, 2000 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 2000 Synthetic Organic Chemicals
Jan 1, 1998 Dec 31, 2000 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2000 Volatile Organic Chemicals
Jan 1, 1998 Dec 31, 2000 Chromium MR No Yes — 0.1 mg/L — Resolved Dec 31, 2000 Inorganic Chemicals
Jan 1, 1998 Dec 31, 2000 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2000 Inorganic Chemicals
Jan 1, 1998 Dec 31, 2000 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2000 Inorganic Chemicals
Jan 1, 1998 Dec 31, 2000 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Dec 31, 2000 Inorganic Chemicals
Jan 1, 1998 Dec 31, 2000 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2000 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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