OAHE PLAINS SYSTEMS CORPORATION

South Dakota — Community Water System — PWSID: SD4600619

System Information

PWSID	SD4600619
System Name	OAHE PLAINS SYSTEMS CORPORATION
System Type	Community Water System
Water Source	Surface Water
Activity Status	Inactive
Owner Type	Private
EPA Region	08
Serves School	No
Wholesaler	No
First Reported	Feb 2, 1981
Last Reported	Dec 9, 2025

Location & Contact

State	South Dakota
City	PIERRE
ZIP Code	57501
Address	225 SPRING CREEK DRIVE
Organization	OAHE PLAINS SYSTEMS CORPORATION
Phone	6052247994

Population & Service

Population Served	257
Service Connections	103

Drinking Water Violations (35)

This water system has 35 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, 2001	Jul 9, 2001	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Jul 9, 2001	Consumer Confidence Rule
Jul 1, 2001	Jul 9, 2001	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Jul 9, 2001	Consumer Confidence Rule
Jul 1, 1993	Jul 31, 1993	Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Jul 31, 1993	Surface Water Treatment Rule
Jan 1, 1993	Dec 31, 1993	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 1993	Arsenic Rule
Jan 1, 1993	Dec 31, 1993	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 1993	Arsenic Rule
Jan 1, 1993	Dec 31, 1993	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1993	Dec 31, 1993	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 1993	Inorganic Chemicals
Jan 1, 1992	Dec 31, 1992	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 1992	Inorganic Chemicals
Jan 1, 1992	Dec 31, 1992	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 1992	Inorganic Chemicals
Jan 1, 1992	Dec 31, 1992	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 1992	Inorganic Chemicals
Jan 1, 1992	Dec 31, 1992	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 1992	Inorganic Chemicals
Jan 1, 1992	Dec 31, 1992	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 1992	Inorganic Chemicals
Jan 1, 1992	Dec 31, 1992	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 1992	Inorganic Chemicals
Jan 1, 1992	Dec 31, 1992	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 1992	Inorganic Chemicals
Jan 1, 1992	Dec 31, 1992	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 1992	Arsenic Rule
Jun 1, 1976	May 31, 1980	Combined Radium (-226 and -228)	MR	No	No	—	5 pCi/L	—	Archived	May 31, 1980	Radionuclides and Revised Rad Rule
Jun 1, 1976	May 31, 1980	Gross Alpha, Excl. Radon and U	MR	No	No	—	15 pCi/L	—	Archived	May 31, 1980	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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