HOLY CROSS, IA · Dubuque County

HOLY CROSS 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): IA3146055
System type: Community Water System
Population served: 356
Service connections: 173
Ownership: local government
Water source: groundwater (wells)

Violation history

Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2003 – April 30, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1996 – August 31, 1996
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 1990 – April 29, 1991
Resolved
Monitoring, Regular
—
Cadmium
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Fluoride
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Mercury
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Nitrate
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Selenium
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Chromium
April 1, 1988 – March 31, 1991
Resolved
Monitoring, Regular
—
Barium
April 1, 1988 – March 31, 1991
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2003 – April 30, 2003	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 1996 – August 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1990 – April 29, 1991	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Cadmium	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Fluoride	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Mercury	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Nitrate	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Selenium	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Chromium	—	Resolved
April 1, 1988 – March 31, 1991	Monitoring, Regular	Barium	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

June 9, 2023State Public Notification received4 linked violations
May 23, 2023State Compliance achieved3 linked violations
May 17, 2023State Public Notification requested12 linked violations
January 21, 2004State Compliance achieved3 linked violations
July 27, 2001State Public Notification received23 linked violations
July 19, 2001State Public Notification requested23 linked violations
July 19, 2001State Formal Notice of Violation issued24 linked violations
October 4, 1996State Public Notification received5 linked violations
September 17, 1996State Compliance achieved1 linked violation
January 1, 1995State Compliance achieved5 linked violations
July 26, 1994State Public Notification received3 linked violations
July 6, 1994State Formal Notice of Violation issued7 linked violations
July 6, 1994State Public Notification requested5 linked violations
June 8, 1994State Public Notification received7 linked violations
November 4, 1991State Compliance achieved1 linked violation
November 4, 1991State Compliance achieved2 linked violations
April 29, 1991State Compliance achieved6 linked violations
April 29, 1991State Compliance achieved2 linked violations
April 29, 1991State Compliance achieved13 linked violations
April 29, 1991State Compliance achieved1 linked violation
April 29, 1991State Compliance achievedgeneral compliance action — not tied to a specific violation on record
April 29, 1991State Compliance achieved2 linked violations
April 29, 1991State Compliance achieved2 linked violations
February 18, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Contact

HOLY CROSS WATER SUPPLY

563-870-2475

HOLY CROSS, IA 52053