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Rock Springs Community - NTUA

Arizona — Community Water System — PWSID: 093500302

System Information

PWSID093500302
System NameRock Springs Community - NTUA
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
CityFort Defiance
ZIP Code86504
AddressP.O. Box 170
OrganizationNTUA
Phone—

Population & Service

Population Served1,574
Service Connections410

Drinking Water Violations (67)

This water system has 67 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
Jan 1, 2016 Mar 31, 2016 Toluene MR No Yes — 1 mg/L — Resolved Mar 31, 2016 Volatile Organic Chemicals
Jan 1, 2016 Mar 31, 2016 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Mar 31, 2016 Synthetic Organic Chemicals
Oct 1, 2015 Dec 31, 2015 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2015 Volatile Organic Chemicals
Oct 1, 2015 Dec 31, 2015 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2015 Synthetic Organic Chemicals
Jul 1, 2015 Sep 30, 2015 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jul 30, 2015 Synthetic Organic Chemicals
Jul 1, 2015 Sep 30, 2015 Toluene MR No Yes — 1 mg/L — Resolved Jul 30, 2015 Volatile Organic Chemicals
May 1, 2015 May 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 17, 2011 Total Coliform Rule
Apr 1, 2015 Jun 30, 2015 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2015 Synthetic Organic Chemicals
Apr 1, 2015 Jun 30, 2015 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2015 Volatile Organic Chemicals
Jan 1, 2015 Mar 31, 2015 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Mar 31, 2015 Synthetic Organic Chemicals
Jan 1, 2015 Mar 31, 2015 Toluene MR No Yes — 1 mg/L — Resolved Mar 31, 2015 Volatile Organic Chemicals
Oct 1, 2014 Dec 31, 2014 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2014 Volatile Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Toluene MR No Yes — 1 mg/L — Resolved Sep 30, 2014 Volatile Organic Chemicals
Apr 1, 2014 Jun 30, 2014 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2014 Volatile Organic Chemicals
Jan 1, 2014 Mar 31, 2014 Toluene MR No Yes — 1 mg/L — Resolved Mar 31, 2014 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2014 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Dec 31, 2014 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Dec 31, 2011 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2011 Nitrate Rule
Jan 1, 2011 Dec 31, 2013 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2013 Arsenic Rule
Jan 1, 2011 Dec 31, 2013 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Fluoride MR No Yes — 4.0 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Chromium MR No Yes — 0.1 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2013 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Dec 31, 2013 Radionuclides and Revised Rad Rule
Jan 1, 2008 Dec 31, 2013 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Dec 31, 2013 Radionuclides and Revised Rad Rule
Nov 1, 2004 Nov 30, 2004 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2004 Total Coliform Rule
Jul 1, 2002 — Consumer Confidence Rule Other No No — — — Resolved Apr 13, 2007 Consumer Confidence Rule
May 1, 2002 May 31, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2002 Total Coliform Rule
Jan 1, 2001 Dec 31, 2001 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2001 Inorganic Chemicals
Jan 1, 2001 Dec 31, 2001 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2001 Inorganic Chemicals
Jan 1, 2001 Dec 31, 2001 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2001 Synthetic Organic Chemicals
Jan 1, 2001 Dec 31, 2001 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2001 Volatile Organic Chemicals
Jan 1, 2001 Dec 31, 2001 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2001 Volatile Organic Chemicals
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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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