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GOLDEN VALLEY WATER COMPANY

South Dakota — Community Water System — PWSID: SD4602261

System Information

PWSIDSD4602261
System NameGOLDEN VALLEY WATER COMPANY
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedApr 4, 2006
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityBLACK HAWK
ZIP Code57718
AddressPO BOX 761
OrganizationGOLDEN VALLEY WATER COMPANY
Phone6057864366

Population & Service

Population Served283
Service Connections113

Drinking Water Violations (44)

This water system has 44 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, 2021 Sep 30, 2021 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Sep 30, 2021 Radionuclides and Revised Rad Rule
Jul 1, 2021 Sep 30, 2021 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Sep 30, 2021 Radionuclides and Revised Rad Rule
Jul 1, 2021 Sep 30, 2021 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Sep 30, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2018 Mar 31, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2018 Radionuclides and Revised Rad Rule
Jan 1, 2018 Mar 31, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2018 Radionuclides and Revised Rad Rule
Jan 1, 2018 Mar 31, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2018 Radionuclides and Revised Rad Rule
Oct 1, 2017 Dec 31, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2017 Radionuclides and Revised Rad Rule
Oct 1, 2017 Dec 31, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2017 Radionuclides and Revised Rad Rule
Jul 1, 2017 Sep 30, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2017 Radionuclides and Revised Rad Rule
Jul 1, 2017 Sep 30, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2017 Radionuclides and Revised Rad Rule
Jul 1, 2017 Sep 30, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2017 Radionuclides and Revised Rad Rule
Jul 1, 2017 Sep 30, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2017 Radionuclides and Revised Rad Rule
Apr 1, 2017 Jun 30, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2017 Radionuclides and Revised Rad Rule
Apr 1, 2017 Jun 30, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2017 Radionuclides and Revised Rad Rule
Apr 1, 2017 Jun 30, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2017 Radionuclides and Revised Rad Rule
Apr 1, 2017 Jun 30, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2017 Radionuclides and Revised Rad Rule
Jan 1, 2017 Mar 31, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2017 Radionuclides and Revised Rad Rule
Jan 1, 2017 Mar 31, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2017 Radionuclides and Revised Rad Rule
Jan 1, 2017 Mar 31, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2017 Radionuclides and Revised Rad Rule
Jan 1, 2017 Mar 31, 2017 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2017 Radionuclides and Revised Rad Rule
Oct 1, 2016 Dec 31, 2016 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2016 Radionuclides and Revised Rad Rule
Oct 1, 2016 Dec 31, 2016 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2016 Radionuclides and Revised Rad Rule
Oct 1, 2016 Dec 31, 2016 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2016 Radionuclides and Revised Rad Rule
Jul 1, 2016 Sep 30, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Sep 30, 2016 Radionuclides and Revised Rad Rule
Jul 1, 2016 Sep 30, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Sep 30, 2016 Radionuclides and Revised Rad Rule
Jul 1, 2016 Sep 30, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Sep 30, 2016 Radionuclides and Revised Rad Rule
Jul 1, 2016 Sep 30, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Sep 30, 2016 Radionuclides and Revised Rad Rule
Apr 1, 2016 Jun 30, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Jun 30, 2016 Radionuclides and Revised Rad Rule
Apr 1, 2016 Jun 30, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Jun 30, 2016 Radionuclides and Revised Rad Rule
Apr 1, 2016 Jun 30, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Jun 30, 2016 Radionuclides and Revised Rad Rule
Apr 1, 2016 Jun 30, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Jun 30, 2016 Radionuclides and Revised Rad Rule
Jan 1, 2016 Mar 31, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Mar 31, 2016 Radionuclides and Revised Rad Rule
Jan 1, 2016 Mar 31, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Mar 31, 2016 Radionuclides and Revised Rad Rule
Jan 1, 2016 Mar 31, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Mar 31, 2016 Radionuclides and Revised Rad Rule
Jan 1, 2016 Mar 31, 2016 Gross Alpha, Excl. Radon and U MCL Yes No 16 PCI/L 15 pCi/L — Resolved Mar 31, 2016 Radionuclides and Revised Rad Rule
Apr 1, 2014 Jun 30, 2014 Gross Alpha, Excl. Radon and U MCL Yes No 18 PCI/L 15 pCi/L — Resolved Jun 30, 2014 Radionuclides and Revised Rad Rule
Apr 1, 2014 Jun 30, 2014 Gross Alpha, Excl. Radon and U MCL Yes No 18 PCI/L 15 pCi/L — Resolved Jun 30, 2014 Radionuclides and Revised Rad Rule
Jan 1, 2014 Mar 31, 2014 Gross Alpha, Excl. Radon and U MCL Yes No 21 PCI/L 15 pCi/L — Resolved Mar 31, 2014 Radionuclides and Revised Rad Rule
Oct 1, 2013 Dec 31, 2013 Gross Alpha, Excl. Radon and U MCL Yes No 17 PCI/L 15 pCi/L — Resolved Dec 31, 2013 Radionuclides and Revised Rad Rule
Oct 1, 2013 Dec 31, 2013 Gross Alpha, Excl. Radon and U MCL Yes No 17 PCI/L 15 pCi/L — Resolved Dec 31, 2013 Radionuclides and Revised Rad Rule
Apr 1, 2011 Jun 30, 2011 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2011 Radionuclides and Revised Rad Rule
Jan 1, 2011 Mar 31, 2011 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2011 Radionuclides and Revised Rad Rule
Oct 1, 2010 Dec 31, 2010 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L — Resolved Dec 31, 2010 Radionuclides and Revised Rad Rule
Oct 1, 2010 Dec 31, 2010 Combined Radium (-226 and -228) MCL Yes No 7 PCI/L 5 pCi/L — Resolved Dec 31, 2010 Radionuclides and Revised Rad Rule

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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