OTHO, IA · Webster County

KALO WATER SYSTEM Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of February 3, 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 Webster County, IA.

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): IA9448099
System type: Community Water System
Population served: 25
Service connections: 11
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
April 1, 1990 – July 23, 1990
Resolved
Monitoring, Regular
—
Mercury
July 1, 1987 – June 30, 1990
Resolved
Monitoring, Regular
—
Barium
July 1, 1987 – June 30, 1990
Resolved
Monitoring, Regular
—
Fluoride
July 1, 1987 – June 30, 1990
Resolved
Monitoring, Regular
—
Chromium
July 1, 1987 – June 30, 1990
Resolved
Monitoring, Regular
—
Cadmium
July 1, 1987 – June 30, 1990
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 1985 – September 30, 1986
Archived
Monitoring, Regular
—
Nitrate
July 1, 1985 – June 30, 1988
Resolved
Monitoring, Regular
—
Selenium
October 1, 1983 – September 30, 1984
Archived
Monitoring, Regular
—
Cadmium
October 1, 1983 – September 30, 1984
Archived
Monitoring, Regular
—
Chromium
October 1, 1983 – September 30, 1984
Archived
Monitoring, Regular
—
Barium
October 1, 1983 – September 30, 1984
Archived
Monitoring, Regular
—
Fluoride
October 1, 1983 – September 30, 1984
Archived
Monitoring, Regular
—
Mercury
October 1, 1983 – September 30, 1984
Archived
Monitoring, Regular
—
Nitrate
October 1, 1983 – September 30, 1984
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Combined Radium (-226 and -228)
October 1, 1981 – September 30, 1985
Resolved
Monitoring, Regular
—
Selenium
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Mercury
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Fluoride
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Cadmium
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Barium
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
April 1, 1990 – July 23, 1990	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 1987 – June 30, 1990	Monitoring, Regular	Mercury	—	Resolved
July 1, 1987 – June 30, 1990	Monitoring, Regular	Barium	—	Resolved
July 1, 1987 – June 30, 1990	Monitoring, Regular	Fluoride	—	Resolved
July 1, 1987 – June 30, 1990	Monitoring, Regular	Chromium	—	Resolved
July 1, 1987 – June 30, 1990	Monitoring, Regular	Cadmium	—	Resolved
October 1, 1985 – September 30, 1986	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
July 1, 1985 – June 30, 1988	Monitoring, Regular	Nitrate	—	Resolved
October 1, 1983 – September 30, 1984	Monitoring, Regular	Selenium	—	Archived
October 1, 1983 – September 30, 1984	Monitoring, Regular	Cadmium	—	Archived
October 1, 1983 – September 30, 1984	Monitoring, Regular	Chromium	—	Archived
October 1, 1983 – September 30, 1984	Monitoring, Regular	Barium	—	Archived
October 1, 1983 – September 30, 1984	Monitoring, Regular	Fluoride	—	Archived
October 1, 1983 – September 30, 1984	Monitoring, Regular	Mercury	—	Archived
October 1, 1983 – September 30, 1984	Monitoring, Regular	Nitrate	—	Archived
October 1, 1981 – September 30, 1985	Maximum Contaminant Level Violation, Single Sample	Combined Radium (-226 and -228)	Health-based	Resolved
September 30, 1980 – September 29, 1983	Monitoring, Regular	Selenium	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Mercury	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Fluoride	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Cadmium	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Barium	—	Archived

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

Enforcement actions

February 3, 1995State Intentional no-action1 linked violation
February 3, 1995State Intentional no-action2 linked violations
November 1, 1994State Public Notification received4 linked violations
October 24, 1994State Public Notification requested3 linked violations
October 24, 1994State Formal Notice of Violation issued1 linked violation
July 11, 1994State Compliance achieved3 linked violations
July 11, 1994State Public Notification received2 linked violations
May 20, 1994State Formal Notice of Violation issued1 linked violation
May 20, 1994State Public Notification requested5 linked violations
May 20, 1994State Public Notification requested2 linked violations
April 9, 1991State Public Notification received1 linked violation
March 13, 1991State Public Notification requested1 linked violation
March 13, 1991State Formal Notice of Violation issued2 linked violations
February 25, 1991State Compliance achieved2 linked violations
February 25, 1991State Compliance achieved2 linked violations
July 23, 1990State Compliance achieved1 linked violation
July 23, 1990State Compliance achieved2 linked violations
July 23, 1990State Compliance achieved1 linked violation
July 23, 1990State Compliance achieved2 linked violations
September 8, 1989State Public Notification received1 linked violation
June 21, 1989State Intentional no-action1 linked violation
August 31, 1988State Formal Notice of Violation issued2 linked violations
August 31, 1988State Formal Notice of Violation issued2 linked violations
August 23, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 20, 1988State Public Notification requested1 linked violation
June 14, 1988State Public Notification requested1 linked violation
June 1, 1988State Compliance achievedgeneral compliance action — not tied to a specific violation on record
June 1, 1988State Compliance achieved1 linked violation
April 1, 1987State Formal Notice of Violation issued1 linked violation
April 1, 1987State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 15, 1986State Compliance achieved2 linked violations
October 25, 1985State Public Notification requested1 linked violation
September 30, 1984Federal issued Formal Notice of Violation11 linked violations
March 22, 1984State Other230 linked violations
February 16, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

Not on record

Phone not on record

OTHO, IA 50569