HOLY CROSS, IA · Dubuque County
HOLY CROSS WATER SUPPLY Water System
Consumer Confidence Report status
HOLY CROSS WATER SUPPLY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for HOLY CROSS WATER SUPPLY.
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)
- IA3146055
- System type
- Community Water System
- Population served
- 356
- Service connections
- 173
- Ownership
- local government
- Water source
- groundwater (wells)
HOLY CROSS WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 356 people from groundwater.
As of August 1, 2026, its federal record holds 10 entries between 1988 and 2003, all of which EPA lists as closed. Nothing has been added since 2003.
Of the 10, 9 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, the Total Coliform Rules, and the Lead and Copper Rule.
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
April 1, 2003 – April 30, 2003
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
June 1, 2001 – June 30, 2001
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 1990 – April 29, 1991
ResolvedMonitoring, Regular
—Chromium
April 1, 1988 – March 31, 1991
ResolvedMonitoring, Regular
—Fluoride
April 1, 1988 – March 31, 1991
ResolvedMonitoring, Regular
—Mercury
April 1, 1988 – March 31, 1991
ResolvedMonitoring, Regular
—Nitrate
April 1, 1988 – March 31, 1991
ResolvedMonitoring, Regular
—Selenium
April 1, 1988 – March 31, 1991
ResolvedMonitoring, Regular
—Barium
April 1, 1988 – March 31, 1991
ResolvedMonitoring, Regular
—Cadmium
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 |
| June 1, 2001 – June 30, 2001 | Monitoring, Routine Minor (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 | Chromium | — | 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 | Barium | — | Resolved |
| April 1, 1988 – March 31, 1991 | Monitoring, Regular | Cadmium | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- October 22, 2025State Formal Notice of Violation issued3 linked violations
- October 22, 2025State Formal Notice of Violation issued3 linked violations
- 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 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
- June 8, 1994State Public Notification received7 linked violations
- November 4, 1991State Compliance achieved2 linked violations
- November 4, 1991State Compliance achieved1 linked violation
- April 29, 1991State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- April 29, 1991State Compliance achieved4 linked violations
- April 29, 1991State Compliance achieved13 linked violations
- April 29, 1991State Compliance achieved1 linked violation
- April 29, 1991State Compliance achieved2 linked violations
- April 29, 1991State Compliance achieved2 linked violations
Common questions
Is HOLY CROSS WATER SUPPLY required to publish a Consumer Confidence Report?
- Yes. HOLY CROSS WATER SUPPLY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is HOLY CROSS WATER SUPPLY’s next Consumer Confidence Report due?
- HOLY CROSS WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does HOLY CROSS WATER SUPPLY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for HOLY CROSS WATER SUPPLY.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
HOLY CROSS WATER SUPPLY
563-870-2475
HOLY CROSS, IA 52053