DAVENPORT, IA · Scott County

WALNUT GROVE WATER COMPANY Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of March 13, 1998. 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 Scott County, IA.

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 Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

System facts

System ID (PWSID): IA8222303
System type: Community Water System
Population served: 65
Service connections: 26
Ownership: privately owned
Water source: groundwater (wells)

WALNUT GROVE WATER COMPANY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, formerly serving 65 people from groundwater.

EPA's federal records list this system as inactive in 1998; the record below is historical.

As of August 1, 2026, its federal record holds 29 entries between 1980 and 1997, all of which EPA lists as closed. Nothing has been added since 1997.

Of the 29, 25 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, inorganic chemicals, and the Radionuclides and Revised Rad Rule.

Violation history

Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
May 1, 1997 – May 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1995 – December 31, 1995
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
January 1, 1994 – January 31, 1994
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 1994 – December 31, 1996
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 1, 1993 – August 31, 1993
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 1, 1993 – August 31, 1993
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 1992 – September 30, 1992
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1992 – September 30, 1992
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
August 1, 1992 – August 31, 1992
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1992 – July 31, 1992
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1992 – July 31, 1992
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1992 – July 31, 1992
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1992 – July 31, 1992
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 1992 – June 30, 1992
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
April 1, 1992 – April 30, 1992
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
April 1, 1992 – April 30, 1992
Resolved
Monitoring, Regular
—
Barium
October 1, 1985 – September 30, 1986
Resolved
Monitoring, Regular
—
Cadmium
October 1, 1985 – September 30, 1988
Archived
Monitoring, Regular
—
Fluoride
October 1, 1985 – September 30, 1986
Resolved
Monitoring, Regular
—
Mercury
October 1, 1985 – September 30, 1986
Resolved
Monitoring, Regular
—
Nitrate
October 1, 1985 – September 30, 1986
Resolved
Monitoring, Regular
—
Arsenic
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Barium
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Cadmium
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Chromium
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Nitrate
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Selenium
September 30, 1980 – September 29, 1983
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
May 1, 1997 – May 31, 1997	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
December 1, 1995 – December 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1994 – January 31, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1994 – December 31, 1996	Monitoring, Regular	Antimony, Total	—	Resolved
August 1, 1993 – August 31, 1993	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 1993 – August 31, 1993	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1992 – September 30, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 1992 – September 30, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 1992 – August 31, 1992	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 1992 – July 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 1992 – July 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1992 – July 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1992 – July 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1992 – June 30, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 1992 – April 30, 1992	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1992 – April 30, 1992	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1985 – September 30, 1986	Monitoring, Regular	Barium	—	Resolved
October 1, 1985 – September 30, 1988	Monitoring, Regular	Cadmium	—	Archived
October 1, 1985 – September 30, 1986	Monitoring, Regular	Fluoride	—	Resolved
October 1, 1985 – September 30, 1986	Monitoring, Regular	Mercury	—	Resolved
October 1, 1985 – September 30, 1986	Monitoring, Regular	Nitrate	—	Resolved
September 30, 1980 – September 29, 1983	Monitoring, Regular	Arsenic	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Barium	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Cadmium	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Chromium	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Nitrate	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Selenium	—	Archived

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

Enforcement actions

March 13, 1998State Compliance achieved2 linked violations
December 22, 1997State Public Notification requested2 linked violations
September 4, 1997State Public Notification received1 linked violation
September 2, 1997State Administrative/Compliance Order with penalty issued1 linked violation
September 2, 1997State Administrative/Compliance Order with penalty issued3 linked violations
August 25, 1997State Public Notification requested1 linked violation
June 18, 1997State Compliance achieved2 linked violations
June 18, 1997State Compliance achieved3 linked violations
June 6, 1997State Public Notification requested2 linked violations
June 6, 1997State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 6, 1997State Formal Notice of Violation issued1 linked violation
December 17, 1996State Compliance achieved1 linked violation
October 16, 1996State Formal Notice of Violation issued1 linked violation
October 16, 1996State Public Notification requested3 linked violations
October 16, 1996State Public Notification requested1 linked violation
February 23, 1996State Public Notification requested3 linked violations
February 23, 1996State Formal Notice of Violation issued23 linked violations
July 7, 1995State Compliance achieved4 linked violations
July 7, 1995State Compliance achieved1 linked violation
July 7, 1995State Compliance achieved1 linked violation
July 7, 1995State Compliance achieved2 linked violations
July 7, 1995State Compliance achieved2 linked violations
July 7, 1995State Compliance achieved5 linked violations
July 7, 1995State Compliance achieved1 linked violation
May 26, 1994State Administrative/Compliance Order without penalty issued6 linked violations
May 26, 1994State Administrative/Compliance Order without penalty issued2 linked violations
May 20, 1994State Public Notification requested35 linked violations
March 18, 1994State Public Notification requested2 linked violations
March 18, 1994State Public Notification requested3 linked violations
December 9, 1993State Public Notification received16 linked violations
December 9, 1993State Public Notification received4 linked violations
December 9, 1993State Public Notification received3 linked violations
December 9, 1993State Public Notification received1 linked violation
November 23, 1993State Public Notification requested26 linked violations
November 23, 1993State Formal Notice of Violation issued6 linked violations
November 23, 1993State Formal Notice of Violation issued3 linked violations
October 15, 1993State Formal Notice of Violation issued4 linked violations
October 15, 1993State Public Notification requested5 linked violations
October 15, 1993State Public Notification requested4 linked violations
October 15, 1993State Formal Notice of Violation issued2 linked violations
October 15, 1993State Public Notification requested1 linked violation
June 18, 1993State Bilateral Compliance Agreement signed2 linked violations
November 13, 1992State Formal Notice of Violation issued1 linked violation
October 5, 1992State Public Notification received3 linked violations
October 5, 1992State Public Notification received1 linked violation
October 5, 1992State Public Notification received1 linked violation
October 5, 1992State Public Notification received5 linked violations
September 18, 1992State Formal Notice of Violation issued1 linked violation
September 18, 1992State Public Notification requested2 linked violations
September 18, 1992State Formal Notice of Violation issued1 linked violation
September 18, 1992State Public Notification requested3 linked violations
September 18, 1992State Public Notification requested2 linked violations
September 16, 1992State Formal Notice of Violation issued2 linked violations
September 16, 1992State Public Notification requested2 linked violations
August 25, 1992State Boil Water Order7 linked violations
August 25, 1992State Administrative/Compliance Order without penalty issued3 linked violations
August 12, 1992State Formal Notice of Violation issued23 linked violations
August 12, 1992State Formal Notice of Violation issued2 linked violations
July 29, 1992State Formal Notice of Violation issued1 linked violation
July 29, 1992State Public Notification requested1 linked violation
October 2, 1990State Compliance achieved1 linked violation
October 1, 1990State no additional Formal Action needed3 linked violations
November 29, 1988State Compliance achieved1 linked violation
September 30, 1987State Compliance achievedgeneral compliance action — not tied to a specific violation on record
September 15, 1987State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 30, 1984State Administrative/Compliance Order without penalty issued7 linked violations
February 18, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record
February 10, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

Not on record

319-324-3497

DAVENPORT, IA 52802