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CORNERSTONE PRESBYTERIAN CHURCH

Colorado — Transient Non-Community — PWSID: CO0218036

System Information

PWSIDCO0218036
System NameCORNERSTONE PRESBYTERIAN CHURCH
System TypeTransient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedNov 24, 1987
Last ReportedNov 17, 2025

Location & Contact

StateColorado
CityCASTLE ROCK
ZIP Code80109
Address2838 MASHIE CIR
OrganizationHELSEL, DENNIS R
Phone303-870-4921

Population & Service

Population Served130
Service Connections1

Drinking Water Violations (135)

This water system has 135 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
Jun 28, 2019 — Public Notice Other No No — — — Resolved Aug 19, 2019 Public Notice Rule and Revised PN Rule
Jun 28, 2019 — Public Notice Other No No — — — Resolved Aug 19, 2019 Public Notice Rule and Revised PN Rule
Jun 28, 2018 — Public Notice Other No No — — — Resolved Aug 9, 2018 Public Notice Rule and Revised PN Rule
Jun 28, 2018 — Public Notice Other No No — — — Resolved Aug 9, 2018 Public Notice Rule and Revised PN Rule
Oct 1, 2006 Dec 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2006 Total Coliform Rule
Oct 1, 2006 Dec 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2006 Total Coliform Rule
Oct 1, 2006 Dec 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2006 Total Coliform Rule
Mar 1, 2006 Mar 31, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Mar 31, 2006 Total Coliform Rule
Mar 1, 2006 Mar 31, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Mar 31, 2006 Total Coliform Rule
Mar 1, 2006 Mar 31, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Mar 31, 2006 Total Coliform Rule
Mar 1, 2006 Mar 31, 2006 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Mar 31, 2006 Total Coliform Rule
Jan 1, 2006 Mar 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2006 Total Coliform Rule
Jan 1, 2006 Mar 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2006 Total Coliform Rule
Jan 1, 2006 Mar 31, 2006 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2006 Total Coliform Rule
Oct 1, 2005 Dec 31, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2005 Dec 31, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Sep 30, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Sep 30, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Sep 30, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2005 Jun 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2005 Total Coliform Rule
Apr 1, 2005 Jun 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2005 Total Coliform Rule
Apr 1, 2005 Jun 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2005 Total Coliform Rule
Apr 1, 2005 Jun 30, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2005 Jun 30, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2005 Jun 30, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2005 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2005 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2005 Nitrate Rule
Jan 1, 2005 Dec 31, 2005 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2005 Nitrate Rule
Jan 1, 2005 Dec 31, 2005 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2005 Nitrate Rule
Jan 1, 2005 Mar 31, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Mar 31, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Mar 31, 2005 Chlorine MR No Yes — 4.0 mg/L — Resolved Mar 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2005 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2005 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2005 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2005 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2005 Dec 31, 2005 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2003 Mar 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2003 Total Coliform Rule
Jan 1, 2003 Mar 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2003 Total Coliform Rule
Jan 1, 2003 Mar 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2003 Total Coliform Rule
Apr 1, 2002 Jun 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2002 Total Coliform Rule
Apr 1, 2002 Jun 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2002 Total Coliform Rule
Apr 1, 2002 Jun 30, 2002 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2002 Total Coliform Rule
Jan 1, 2002 Dec 31, 2004 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 1999 Dec 31, 2001 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2001 Volatile Organic Chemicals
Jan 1, 1999 Dec 31, 2001 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2001 Volatile Organic Chemicals
Jan 1, 1999 Dec 31, 2001 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2001 Volatile Organic Chemicals
Jan 1, 1999 Dec 31, 2001 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2001 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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