ALEXANDRIA, SD · Hanson County

OAK LANE COLONY Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of December 1, 1995. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Hanson County, SD.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace South Dakota’s official records. Always confirm current status with South Dakota before making decisions based on this information.

System facts

System ID (PWSID): SD4602044
System type: Community Water System
Population served: 76
Service connections: 11
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

OAK LANE COLONY is one of 583 community water systems in South Dakota in the 500 or fewer people size category, formerly serving 76 people from surface water.

EPA's federal records list this system as inactive in 1995; the record below is historical.

As of August 1, 2026, its federal record holds 25 entries between 1991 and 1994, all of which EPA lists as closed. Nothing has been added since 1994.

Of the 25, 24 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules, the Radionuclides and Revised Rad Rule, and volatile organic chemicals.

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1994 – November 30, 1994
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 1994 – December 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1994 – August 31, 1994
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 1994 – September 30, 1994
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1994 – September 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1994 – May 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1994 – April 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1994 – February 28, 1994
Archived
Monitoring, Regular
—
Nitrate
January 1, 1994 – December 31, 1994
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 1994 – December 31, 1994
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 1994 – March 31, 1994
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1994 – December 31, 1994
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1994 – December 31, 1994
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1994 – December 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1993 – November 30, 1993
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 1993 – December 31, 1993
Archived
Monitoring, Regular
—
Xylenes, Total
January 1, 1993 – December 31, 1993
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 1993 – December 31, 1993
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1992 – September 30, 1992
Archived
Notification, Public
—
No contaminant on record
July 7, 1992 – August 6, 1992
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1992 – December 1, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1992 – May 31, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1992 – April 30, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1992 – January 31, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1991 – August 31, 1991
Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 1994 – November 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1994 – December 31, 1994	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
August 1, 1994 – August 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1994 – September 30, 1994	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
July 1, 1994 – September 30, 1994	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
May 1, 1994 – May 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1994 – April 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 1, 1994 – February 28, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – December 31, 1994	Monitoring, Regular	Nitrate	—	Archived
January 1, 1994 – December 31, 1994	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 1994 – March 31, 1994	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
January 1, 1994 – December 31, 1994	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
January 1, 1994 – December 31, 1994	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 1994 – December 31, 1994	Monitoring, Regular	Carbon tetrachloride	—	Archived
November 1, 1993 – November 30, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1993 – December 31, 1993	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
January 1, 1993 – December 31, 1993	Monitoring, Regular	Xylenes, Total	—	Archived
January 1, 1993 – December 31, 1993	Monitoring, Regular	Ethylbenzene	—	Archived
September 1, 1992 – September 30, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 7, 1992 – August 6, 1992	Notification, Public	—	—	Archived
July 1, 1992 – December 1, 1995	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
May 1, 1992 – May 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1992 – April 30, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1992 – January 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1991 – August 31, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

December 15, 1995State Compliance achieved2 linked violations
October 12, 1995State Public Notification requested2 linked violations
September 12, 1995State Public Notification requested2 linked violations
August 9, 1995State Public Notification requested1 linked violation
July 14, 1995State Public Notification requested1 linked violation
June 14, 1995State Public Notification requested1 linked violation
March 28, 1995State Public Notification requested2 linked violations
March 6, 1995State Public Notification received9 linked violations
March 1, 1995State Public Notification requested11 linked violations
January 27, 1995State Public Notification received2 linked violations
January 25, 1995State Public Notification received21 linked violations
January 25, 1995State Public Notification requested2 linked violations
January 17, 1995State Public Notification received1 linked violation
January 11, 1995State Public Notification requested3 linked violations
December 13, 1994State Public Notification received1 linked violation
October 20, 1994State Public Notification received1 linked violation
October 13, 1994State Public Notification requested1 linked violation
September 14, 1994State Public Notification received1 linked violation
September 12, 1994State Public Notification requested2 linked violations
August 17, 1994State Public Notification received2 linked violations
July 22, 1994State Public Notification received1 linked violation
June 15, 1994State Public Notification received1 linked violation
June 9, 1994State Public Notification requested2 linked violations
May 17, 1994State Public Notification received3 linked violations
May 12, 1994State Public Notification requested3 linked violations
April 11, 1994State Public Notification requested3 linked violations
March 14, 1994State Public Notification received2 linked violations
March 10, 1994State Public Notification requested2 linked violations
February 22, 1994State Public Notification received1 linked violation
January 27, 1994State Violation/Reminder Notice43 linked violations
January 20, 1994State Violation/Reminder Notice37 linked violations
December 20, 1993State Public Notification received1 linked violation
May 11, 1993State Intentional no-action36 linked violations
April 6, 1993State Public Notification issued41 linked violations
December 9, 1992State Public Notification issued2 linked violations
August 12, 1992State Public Notification requested2 linked violations
June 17, 1992State Compliance achieved11 linked violations
April 2, 1992State Public Notification issued4 linked violations
November 19, 1991State Public Notification requested35 linked violations

Last known contact on file (system is inactive)

Not on record

Phone not on record

ALEXANDRIA, SD 57311