ALEXANDRIA, SD · Hanson County

ROCKPORT COLONY Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of February 1, 1996. 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 July 4, 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): SD4602014
System type: Community Water System
Population served: 101
Service connections: 20
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1995 – September 30, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1995 – January 31, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1994 – July 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1994 – May 31, 1994
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1994 – December 31, 1994
Archived
Monitoring, Regular
—
Nitrate
January 1, 1994 – December 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1993 – December 31, 1993
Archived
Monitoring, Regular
—
Benzene
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1988 – December 31, 1990
Resolved

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
September 1, 1995 – September 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1995 – January 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1994 – July 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
May 1, 1994 – May 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – December 31, 1994	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 1994 – December 31, 1994	Monitoring, Regular	Nitrate	—	Archived
December 1, 1993 – December 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1993 – December 31, 1993	Monitoring, Regular	Benzene	—	Resolved
January 1, 1988 – December 31, 1990	Monitoring, Regular	Nitrate	—	Resolved

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

Enforcement actions

February 1, 1996State Compliance achieved61 linked violations
November 14, 1995State Public Notification requested19 linked violations
March 28, 1995State Public Notification requested3 linked violations
February 14, 1995State Public Notification requested4 linked violations
January 25, 1995State Public Notification received22 linked violations
December 13, 1994State Public Notification received2 linked violations
October 20, 1994State Public Notification received12 linked violations
October 13, 1994State Public Notification requested7 linked violations
September 14, 1994State Public Notification received1 linked violation
September 12, 1994State Public Notification requested28 linked violations
July 14, 1994State Public Notification received3 linked violations
June 15, 1994State Public Notification received2 linked violations
May 12, 1994State Public Notification requested18 linked violations
February 22, 1994State Public Notification received2 linked violations
December 20, 1993State Public Notification received8 linked violations
August 17, 1993State Public Notification received33 linked violations
March 1, 1992State Compliance achieved11 linked violations

Last known contact on file (system is inactive)

Not on record

Phone not on record

ALEXANDRIA, SD 57311