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OWANKA RURAL WATER SYSTEM

South Dakota — Community Water System — PWSID: SD4602310

System Information

PWSIDSD4602310
System NameOWANKA RURAL WATER SYSTEM
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedJan 21, 2011
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityBLACK HAWK
ZIP Code57718
AddressPO BOX 761
OrganizationOWANKA RURAL WATER SYSTEM
Phone6057864366

Population & Service

Population Served52
Service Connections23

Drinking Water Violations (63)

This water system has 63 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
Oct 1, 2020 Dec 31, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Jul 1, 2020 Sep 30, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2020 Radionuclides and Revised Rad Rule
Jul 1, 2020 Sep 30, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2020 Radionuclides and Revised Rad Rule
Jul 1, 2020 Sep 30, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2020 Radionuclides and Revised Rad Rule
Apr 1, 2020 Jun 30, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2020 Radionuclides and Revised Rad Rule
Apr 1, 2020 Jun 30, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2020 Radionuclides and Revised Rad Rule
Apr 1, 2020 Jun 30, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2020 Radionuclides and Revised Rad Rule
Apr 1, 2020 Jun 30, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2020 Radionuclides and Revised Rad Rule
Jan 1, 2020 Mar 31, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2020 Radionuclides and Revised Rad Rule
Jan 1, 2020 Mar 31, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2020 Radionuclides and Revised Rad Rule
Jan 1, 2020 Mar 31, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2020 Radionuclides and Revised Rad Rule
Jan 1, 2020 Mar 31, 2020 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2019 Dec 31, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2019 Radionuclides and Revised Rad Rule
Oct 1, 2019 Dec 31, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2019 Radionuclides and Revised Rad Rule
Oct 1, 2019 Dec 31, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2019 Radionuclides and Revised Rad Rule
Oct 1, 2019 Dec 31, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2019 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Apr 1, 2019 Jun 30, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2019 Radionuclides and Revised Rad Rule
Apr 1, 2019 Jun 30, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2019 Radionuclides and Revised Rad Rule
Apr 1, 2019 Jun 30, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2019 Radionuclides and Revised Rad Rule
Jan 1, 2019 Mar 31, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2019 Radionuclides and Revised Rad Rule
Jan 1, 2019 Mar 31, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2019 Radionuclides and Revised Rad Rule
Jan 1, 2019 Mar 31, 2019 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Mar 31, 2019 Radionuclides and Revised Rad Rule
Oct 1, 2018 Dec 31, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2018 Radionuclides and Revised Rad Rule
Oct 1, 2018 Dec 31, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2018 Radionuclides and Revised Rad Rule
Oct 1, 2018 Dec 31, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2018 Radionuclides and Revised Rad Rule
Oct 1, 2018 Dec 31, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Dec 31, 2018 Radionuclides and Revised Rad Rule
Jul 1, 2018 Sep 30, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2018 Radionuclides and Revised Rad Rule
Jul 1, 2018 Sep 30, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Sep 30, 2018 Radionuclides and Revised Rad Rule
Apr 1, 2018 Jun 30, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2018 Radionuclides and Revised Rad Rule
Apr 1, 2018 Jun 30, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2018 Radionuclides and Revised Rad Rule
Apr 1, 2018 Jun 30, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 2018 Radionuclides and Revised Rad Rule
Apr 1, 2018 Jun 30, 2018 Combined Radium (-226 and -228) MCL Yes No 6 PCI/L 5 pCi/L — Resolved Jun 30, 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
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 31, 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 31, 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 31, 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 31, 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

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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