Public Water Partners

WHITTEMORE, IA · Kossuth County

LONE ROCK WATER SUPPLY Water System

Consumer Confidence Report status

LONE ROCK 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 LONE ROCK 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)
IA5547094
System type
Community Water System
Population served
146
Service connections
94
Ownership
local government
Water source
groundwater (wells)

LONE ROCK WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 146 people from groundwater.

As of August 1, 2026, its federal record holds 26 entries between 1995 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.

All 26 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 volatile organic chemicals, synthetic organic chemicals, and the Total Coliform Rules.

Violation history

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    June 1, 2019 – June 30, 2019

    Resolved

  • Monitoring, Regular

    —

    LASSO

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Picloram

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Simazine

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Benzene

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Toluene

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    April 1, 1995 – February 15, 2000

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    April 1, 1995 – February 15, 2000

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is LONE ROCK WATER SUPPLY required to publish a Consumer Confidence Report?

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

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

Does LONE ROCK WATER SUPPLY have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for LONE ROCK 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

LONE ROCK WATER SUPPLY

515-320-1122

WHITTEMORE, IA 50598