Is KEMMERER-DIAMONDVILLE JPB required to publish a Consumer Confidence Report?

Yes. KEMMERER-DIAMONDVILLE JPB 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 KEMMERER-DIAMONDVILLE JPB’s next Consumer Confidence Report due?

KEMMERER-DIAMONDVILLE JPB’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.

KEMMERER, WY · Lincoln County

KEMMERER-DIAMONDVILLE JPB Water System

Consumer Confidence Report status

KEMMERER-DIAMONDVILLE JPB 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 KEMMERER-DIAMONDVILLE JPB.

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

System facts

System ID (PWSID): WY5600028
System type: Community Water System
Population served: 3,348
Service connections: 1,440
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

KEMMERER-DIAMONDVILLE JPB serves 3,348 people from surface water, placing it in the 3,301 to 10,000 people size category.

As of August 1, 2026, its federal record holds 12 entries between 2007 and 2025, all of which EPA lists as closed.

Of the 12, 1 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 the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Surface Water Treatment Rules.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2025 – September 30, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2025 – March 31, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2024 – December 31, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2024 – September 30, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2024 – June 30, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2024 – June 30, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2024 – March 31, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2024 – March 31, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2015 – September 30, 2015
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2011 – June 30, 2011
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2007 – March 31, 2007
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2024 – September 30, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2024 – June 30, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2024 – June 30, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2011 – June 30, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
March 1, 2007 – March 31, 2007	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

November 5, 2025State Compliance achieved1 linked violation
October 6, 2025State Compliance achieved1 linked violation
October 6, 2025State Compliance achieved1 linked violation
October 6, 2025State Compliance achieved1 linked violation
August 7, 2025State Public Notification received1 linked violation
July 8, 2024State Compliance achieved1 linked violation
July 7, 2024State Compliance achieved1 linked violation
June 12, 2024State Public Notification received5 linked violations
March 19, 2024State Public Notification received2 linked violations
March 10, 2016Federal Final Administrative Order issued4 linked violations
January 11, 2016State Compliance achieved2 linked violations
January 11, 2016State Compliance achieved2 linked violations
November 15, 2011State Compliance achieved2 linked violations
April 30, 2007State Compliance achieved8 linked violations
April 23, 2007State Violation/Reminder Notice4 linked violations

Common questions

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

MCCLARNON, BRENT

307-877-2261

KEMMERER, WY 83101