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Mesa Grande - Black Canyon

California - Community Water System - PWSID: 090605132

System Information

PWSID090605132
System NameMesa Grande - Black Canyon
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedJun 26, 1998
Last ReportedMar 25, 2026

Location & Contact

StateCalifornia
CitySanta Ysabel
ZIP Code92070
AddressP.O. Box 270
OrganizationMesa Grande Band of Mission Indians
Phone7606196107

Population & Service

Population Served81
Service Connections25

Drinking Water Violations (185)

This water system has 185 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
May 16, 2024 - Other No No - - - Resolved Jun 26, 2025 -
May 16, 2024 - TT Yes No - - - Resolved Nov 25, 2024 -
Jan 1, 2023 - MR No No - TT - Unaddressed - -
Apr 1, 2016 - Other No No - - - Resolved Aug 11, 2017 -
Jan 1, 2016 Dec 31, 2016 MR No Yes - 10 mg/L - Resolved Dec 31, 2016 -
Oct 1, 2013 - MR No Yes - - - Resolved Aug 11, 2017 -
Dec 1, 2009 Dec 31, 2009 MR No No - 5% of samples - Resolved Dec 31, 2009 -
Mar 1, 2009 Mar 31, 2009 MR No No - 5% of samples - Resolved Mar 31, 2009 -
Jan 1, 2009 Dec 31, 2009 MR No Yes - 10 mg/L - Resolved Dec 31, 2009 -
Jul 1, 2006 - Other No No - - - Resolved Aug 15, 2007 -
Jan 1, 2006 Dec 31, 2006 MR No Yes - 10 mg/L - Resolved Dec 31, 2006 -
Jul 1, 2005 - Other No No - - - Resolved Aug 15, 2007 -
Jan 1, 2005 Dec 31, 2005 MR No Yes - 10 mg/L - Resolved Dec 31, 2005 -
Jul 1, 2004 - Other No No - - - Resolved Aug 15, 2007 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 10 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.003 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.0004 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.07 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.075 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 7 MFL - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.002 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.1 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.007 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.1 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.00000003 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.005 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.005 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.2 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.04 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.5 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.003 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 2 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.2 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.07 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.006 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.005 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.004 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.0002 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 15 pCi/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.0002 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.0005 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.2 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.1 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.02 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.1 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.005 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.4 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.2 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.004 mg/L - Resolved Dec 31, 2004 -
Jan 1, 2004 Dec 31, 2004 MR No Yes - 0.006 mg/L - Resolved Dec 31, 2004 -

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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