Public Water Partners

BOISE, ID · Ada County

CAPITOL WATER CORP Water System

Consumer Confidence Report status

CAPITOL WATER CORP 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 CAPITOL WATER CORP.

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 Idaho’s official records. Always confirm current status with Idaho before making decisions based on this information.

System facts

System ID (PWSID)
ID4010022
System type
Community Water System
Population served
9,000
Service connections
2,811
Ownership
privately owned
Water source
groundwater (wells)

CAPITOL WATER CORP is one of 32 community water systems in Idaho in the 3,301 to 10,000 people size category, serving 9,000 people from groundwater.

As of August 1, 2026, its federal record holds 39 entries between 1992 and 2025, all of which EPA lists as closed.

All 39 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 synthetic organic chemicals, the Total Coliform Rules, and volatile organic chemicals.

Violation history

  • Monitoring, Regular

    Toluene

    October 1, 2025 – December 31, 2025

    Archived
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Dinoseb

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    LASSO

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    2,4-D

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Carbofuran

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    OXAMYL

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Dinoseb

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Carbofuran

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Endrin

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Methoxychlor

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Diquat

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    OXAMYL

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Simazine

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Picloram

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Dinoseb

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Toxaphene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Dalapon

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    OXAMYL

    January 1, 2023 – December 31, 2025

    Archived
  • Lead Consumer Notice

    Lead and Copper Rule

    December 30, 2017 – January 23, 2018

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 2015 – September 30, 2015

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2012 – November 30, 2012

    Archived
  • Monitoring, Regular

    Radium-226

    April 1, 2008 – June 30, 2008

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 1992 – June 30, 1992

    Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is CAPITOL WATER CORP required to publish a Consumer Confidence Report?

Yes. CAPITOL WATER CORP 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 CAPITOL WATER CORP’s next Consumer Confidence Report due?

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

Does CAPITOL WATER CORP have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for CAPITOL WATER CORP.

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

PRICE, ROBERT H

208-375-0931

BOISE, ID 83704