HERRICK, SD · Gregory County

HERRICK Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of December 1, 2004. 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 Gregory 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): SD4600156
System type: Community Water System
Population served: 105
Service connections: 52
Ownership: local government
Water source: groundwater (wells)

HERRICK is one of 583 community water systems in South Dakota in the 500 or fewer people size category, formerly serving 105 people from groundwater.

EPA's federal records list this system as inactive in 2004; the record below is historical.

As of August 1, 2026, its federal record holds 5 entries between 1976 and 1991, all of which EPA lists as closed. Nothing has been added since 1991.

Of the 5, 2 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 inorganic chemicals, the Radionuclides and Revised Rad Rule, and the Miscellaneous Other Rules.

Violation history

Notification, Public
—
No contaminant on record
August 7, 1991 – September 6, 1991
Archived
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
October 3, 1988 – October 2, 1991
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
February 14, 1980 – February 13, 1983
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1976 – June 30, 1980
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 1976 – June 30, 1980
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
August 7, 1991 – September 6, 1991	Notification, Public	—	—	Archived
October 3, 1988 – October 2, 1991	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
February 14, 1980 – February 13, 1983	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Archived
July 1, 1976 – June 30, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
July 1, 1976 – June 30, 1980	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived

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

Enforcement actions

November 30, 2004State no longer subject to Rule2 linked violations
April 1, 2004State Compliance achieved2 linked violations
September 18, 2003State Public Notification requested1 linked violation
January 21, 2000State Public Notification requested4 linked violations
March 10, 1999State Compliance achieved4 linked violations
December 30, 1998State Public Notification requested2 linked violations
February 20, 1997State Public Notification issued2 linked violations
December 11, 1996State Public Notification requested1 linked violation
October 22, 1996State Public Notification requested4 linked violations
November 6, 1995State Compliance achieved1 linked violation
September 12, 1995State Public Notification issued1 linked violation
September 5, 1995State Intentional no-action1 linked violation
September 5, 1995State Public Notification requested1 linked violation
July 14, 1995State Public Notification requested1 linked violation
June 30, 1995State Intentional no-action5 linked violations
March 14, 1995State Public Notification received1 linked violation
February 9, 1995State Public Notification issued1 linked violation
January 3, 1995State Public Notification received1 linked violation
December 28, 1994State Public Notification requested2 linked violations
December 20, 1994State Compliance achieved1 linked violation
September 19, 1994State Public Notification requested3 linked violations
June 21, 1994State Public Notification requested1 linked violation
January 20, 1993State Violation/Reminder Notice6 linked violations
March 12, 1992State Compliance achieved1 linked violation
December 16, 1991State Public Notification issued4 linked violations
August 7, 1991State Public Notification issued4 linked violations
October 18, 1984State Violation/Reminder Notice2 linked violations
April 19, 1984State Violation/Reminder Notice2 linked violations
March 29, 1984State Formal Notice of Violation issued2 linked violations
January 6, 1984State Public Notification received2 linked violations
November 21, 1983State Violation/Reminder Notice4 linked violations
September 30, 1983State Public Notification requested6 linked violations

Last known contact on file (system is inactive)

Not on record

605-835-8394

HERRICK, SD 57538