Public Water Partners

NEWCASTLE, WY · Weston County

NEWCASTLE, CITY OF Water System

Consumer Confidence Report status

NEWCASTLE, CITY OF 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 NEWCASTLE, CITY OF.

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)
WY5600256
System type
Community Water System
Population served
3,595
Service connections
1,572
Ownership
local government
Water source
groundwater (wells)

NEWCASTLE, CITY OF serves 3,595 people from groundwater, placing it in the 3,301 to 10,000 people size category.

As of August 1, 2026, its federal record holds 114 entries between 2002 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.

Of the 114, 113 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, inorganic chemicals, and volatile organic chemicals.

Violation history

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Barium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Fluoride

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Nickel

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Thallium, Total

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Selenium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Arsenic

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Barium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Chromium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Fluoride

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Mercury

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Nickel

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Thallium, Total

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Selenium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Arsenic

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Barium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Chromium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Fluoride

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Mercury

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Nickel

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Thallium, Total

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Selenium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Arsenic

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Barium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Mercury

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Nickel

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Styrene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2020 – December 31, 2022

    Resolved

  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    January 1, 2014 – May 6, 2014

    Resolved

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 2002 – December 31, 2004

    Resolved

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 NEWCASTLE, CITY OF required to publish a Consumer Confidence Report?

Yes. NEWCASTLE, CITY OF 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 NEWCASTLE, CITY OF’s next Consumer Confidence Report due?

NEWCASTLE, CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does NEWCASTLE, CITY OF have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for NEWCASTLE, CITY OF.

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

STUMPFF, GREG

307-746-6208

NEWCASTLE, WY 82701