PIERSON, IA · Woodbury County

PIERSON WATER SUPPLY Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

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

System facts

System ID (PWSID): IA9766041
System type: Community Water System
Population served: 345
Service connections: 164
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Nitrate
October 1, 2020 – October 31, 2020
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
May 1, 1994 – May 31, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1992 – August 31, 1992
Resolved
Notification, Public
—
Nitrate
January 1, 1987 – January 31, 1987
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
October 1, 1986 – October 31, 1986
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
October 1, 1985 – September 30, 1986
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 1, 1984 – September 30, 1985
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 1, 1983 – June 30, 1984
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
October 1, 2020 – October 31, 2020	Monitoring, Regular	Nitrate	—	Resolved
May 1, 1994 – May 31, 1994	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
August 1, 1992 – August 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1987 – January 31, 1987	Notification, Public	Nitrate	—	Resolved
October 1, 1986 – October 31, 1986	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
October 1, 1985 – September 30, 1986	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Archived
October 1, 1984 – September 30, 1985	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
October 1, 1983 – June 30, 1984	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived

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

Enforcement actions

January 8, 2021State Public Notification received1 linked violation
December 2, 2020State Formal Notice of Violation issued1 linked violation
December 2, 2020State Public Notification requested1 linked violation
November 17, 2020State Compliance achieved1 linked violation
October 5, 2017State Public Notification received5 linked violations
September 30, 2017State Compliance achieved1 linked violation
November 12, 2004State Public Notification requested12 linked violations
April 10, 1995State Public Notification received4 linked violations
February 16, 1995State Formal Notice of Violation issued3 linked violations
December 1, 1994State Compliance achieved6 linked violations
December 1, 1994State Compliance achieved7 linked violations
December 1, 1994State Compliance achieved2 linked violations
October 19, 1992State Formal Notice of Violation issued3 linked violations
April 3, 1991State Public Notification received1 linked violation
April 29, 1987State Formal Notice of Violation issued1 linked violation
January 15, 1987State Public Notification received1 linked violation
December 15, 1986State Public Notification requested1 linked violation

Contact

PIERSON WATER SUPPLY

712-375-5015

PIERSON, IA 51048