Is LEWIS WATER SUPPLY required to publish a Consumer Confidence Report?

Yes. LEWIS 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 LEWIS WATER SUPPLY’s next Consumer Confidence Report due?

LEWIS WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

LEWIS, IA · Cass County

LEWIS WATER SUPPLY Water System

Consumer Confidence Report status

LEWIS 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 LEWIS 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): IA1535078
System type: Community Water System
Population served: 357
Service connections: 200
Ownership: local government
Water source: groundwater (wells)

LEWIS WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 357 people from groundwater.

As of August 1, 2026, its federal record holds 4 entries between 1981 and 2025, all of which EPA lists as closed.

None of the 4 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves inorganic chemicals.

Violation history

Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
March 1, 2025 – March 31, 2025
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
June 1, 2003 – August 31, 2003
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
September 1, 1998 – September 30, 1998
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
October 1, 1981 – September 30, 1982
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
March 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
June 1, 2003 – August 31, 2003	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
September 1, 1998 – September 30, 1998	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
October 1, 1981 – September 30, 1982	Maximum Contaminant Level Violation, Average	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

November 20, 2025State Public Notification requested2 linked violations
November 10, 2025State Compliance achieved2 linked violations
March 19, 2025State Formal Notice of Violation issued2 linked violations
July 2, 2024State Public Notification received5 linked violations
July 24, 2003State Public Notification received2 linked violations
October 18, 1999State Compliance achieved1 linked violation
October 6, 1995State Compliance achieved1 linked violation
August 3, 1993State Formal Notice of Violation issued5 linked violations
August 3, 1993State Public Notification requested5 linked violations
June 2, 1992State Compliance achieved2 linked violations
June 2, 1992State Public Notification received3 linked violations
May 19, 1992State Public Notification requested4 linked violations
August 15, 1987State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
August 15, 1987State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
February 16, 1982State Unresolvedgeneral compliance action — not tied to a specific violation on record

Common questions

Is LEWIS WATER SUPPLY required to publish a Consumer Confidence Report?: Yes. LEWIS 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 LEWIS WATER SUPPLY’s next Consumer Confidence Report due?: LEWIS WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does LEWIS WATER SUPPLY have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for LEWIS 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

LEWIS WATER SUPPLY

712-249-3198

LEWIS, IA 51544