MARENGO, IA · Iowa County

HILLSIDE ESTATE, INC. Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of December 31, 2003. 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 Iowa 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): IA4800901
System type: Community Water System
Population served: 62
Service connections: 1
Ownership: privately owned
Water source: groundwater (wells)

HILLSIDE ESTATE, INC. is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, formerly serving 62 people from groundwater.

EPA's federal records list this system as inactive in 2003; the record below is historical.

As of August 1, 2026, its federal record holds 6 entries in 1980, all of which EPA lists as closed. Nothing has been added since 1980.

All 6 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.

Violation history

Monitoring, Regular
—
Arsenic
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Barium
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Chromium
September 30, 1980 – September 29, 1983
Archived
Monitoring, Regular
—
Mercury
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

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
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	Chromium	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Mercury	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Nitrate	—	Archived
September 30, 1980 – September 29, 1983	Monitoring, Regular	Selenium	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

October 28, 2003State Public Notification received2 linked violations
September 26, 2003State Formal Notice of Violation issued2 linked violations
September 26, 2003State Public Notification requested2 linked violations
February 10, 1997State Public Notification received1 linked violation
January 27, 1997State Public Notification requested1 linked violation
January 27, 1997State Formal Notice of Violation issued1 linked violation
January 13, 1997State Compliance achieved1 linked violation
May 31, 1996State Compliance achieved2 linked violations
October 1, 1994State Compliance achieved6 linked violations
January 5, 1994State Public Notification requested6 linked violations
January 5, 1994State Formal Notice of Violation issued2 linked violations
October 21, 1993State Formal Notice of Violation issued3 linked violations
October 21, 1993State Public Notification requested2 linked violations
November 1, 1992State Compliance achieved3 linked violations
February 24, 1992State Public Notification received6 linked violations
February 24, 1992State Public Notification received2 linked violations
February 17, 1992State Formal Notice of Violation issued7 linked violations
February 17, 1992State Formal Notice of Violation issued2 linked violations
September 30, 1987State Compliance achievedgeneral 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

319-668-1659

MARENGO, IA 52301