Historical Compliance Records WY

City of Newcastle

EPA ID: WY5600256 ยท 3,595 people served ยท 1 ZIP code

ZipCheckup's reading of EPA records for City of Newcastle (WY5600256): 92 violations on record since 2021. City of Newcastle's EPA record lists 92 historical violations, and none is listed as open in that record; the utility supplies water to 3,595 residents.

Data: EPA SDWIS

3,595
People Served
1
ZIP Code Served
92
Violations (since 2021)
Groundwater
Water Source
0.001 mg/L
Most recent lead 90th percentile on record (monitoring period ending 2025-12-31)
Zone 2
County Radon Potential ยท Moderate
34
Contaminants Flagged
$218K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for City of Newcastle Source: EPA SDWIS service area boundaries.

Service area boundary

Demographics of ZIP Codes Served

$88,843
Median Household Income
5,411
Population of ZIP Codes Served (Census)
0%
Disadvantaged Population
60th
Poverty Percentile
70th
Energy Burden Percentile
63%
Pre-1986 Housing

The ZIP codes associated with City of Newcastle have a median household income of $88,843 and about 5,411 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 63% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

City of Newcastle's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.

Moderate Risk
Source Contamination Risk
30th
Wastewater Discharge Proximity
10th
Superfund Site Proximity

Infrastructure Risk

52 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
18 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 74% of expected lifespan used (estimate) End of life

Comparable Water Systems

Similar-sized systems in Wyoming

C 10 violations
Bar Nunn, Town of
4,000 people
0 violations
City of Mills
4,050 people
C 3 violations
0 violations
Evansville, Town of
2,873 people
2 violations

Cost of Inaction

Illustrative per-household cost scenario based on stated assumptions:

Estimated Healthcare Costs $1,500

Annual per household (ZipCheckup estimate)

Estimated Cumulative Cost Per Household

5 years
$7,500
10 years
$15,000
20 years
$30,000

Individual costs vary by household size, property, and health factors. These estimates are for awareness, not financial advice.

System Overview

City of Newcastle, (EPA ID: WY5600256) is a community water system in Wyoming that serves approximately 3,595 people from groundwater sources.

This system serves ZIP code 82701 in Newcastle.

Violation History

No current noncompliance in the accepted 2026Q2 snapshot. The 92 records in the 2021-2026 window are classified as resolved or archived, not current.

Status breakdown for accepted records with record years 2021-2026: 1 resolved, 91 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Date Contaminant Type Status
July 1, 2025 Consumer Confidence Rule Non-health-based Resolved
January 1, 2025 Xylenes, Total Non-health-based Archived
January 1, 2023 Arsenic Non-health-based Archived
January 1, 2023 Barium Non-health-based Archived
January 1, 2023 Cadmium Non-health-based Archived
January 1, 2023 Chromium Non-health-based Archived
January 1, 2023 CYANIDE Non-health-based Archived
January 1, 2023 Fluoride Non-health-based Archived
January 1, 2023 Mercury Non-health-based Archived
January 1, 2023 Fluoride Non-health-based Archived
January 1, 2023 Antimony, Total Non-health-based Archived
January 1, 2023 Beryllium, Total Non-health-based Archived
January 1, 2023 Thallium, Total Non-health-based Archived
January 1, 2023 CYANIDE Non-health-based Archived
January 1, 2023 Arsenic Non-health-based Archived
January 1, 2023 Barium Non-health-based Archived
January 1, 2023 Cadmium Non-health-based Archived
January 1, 2023 Chromium Non-health-based Archived
January 1, 2023 CYANIDE Non-health-based Archived
January 1, 2023 Fluoride Non-health-based Archived

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
Arsenic Monitoring & Reporting 4 No
Arsenic Monitoring & Reporting 4 No
Barium Monitoring & Reporting 4 No
Cadmium Monitoring & Reporting 4 No
CYANIDE Monitoring & Reporting 4 No
Chromium Monitoring & Reporting 4 No
Antimony, Total Monitoring & Reporting 4 No
Chromium Monitoring & Reporting 4 No
CYANIDE Monitoring & Reporting 4 No
Antimony, Total Monitoring & Reporting 4 No
Beryllium, Total Other Violation 4 No
Thallium, Total Other Violation 4 No
Xylenes, Total Monitoring & Reporting 3 No
PFOA PFAS 2 No
PFNA PFAS 2 No

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
0.001 mg/L No 2025-12-31

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

1 of 1 ZIP records with known zones is in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by WY or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Newcastle (WY5600256) on EPA.gov.

Frequently Asked Questions

Is City of Newcastle water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for City of Newcastle; its 92 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does City of Newcastle serve?

City of Newcastle serves approximately 3,595 people across 1 ZIP code in Wyoming.

Where does City of Newcastle get its water?

The primary water source is groundwater.

Federal UCMR5 PFAS Monitoring: No PFAS Reported Above Reporting Levels

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were reported above UCMR5 minimum reporting levels.

Samples collected
290

EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.

Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ€” per-system federal sampling, 2023โ€“2025. EPA UCMR5 monitoring program โ†’

Understand PFAS health context and filtration โ†’

Frequently Asked Questions

Should I use a water filter? ▼
Given 92 recorded violations, review the violation types and dates; a filter certified for a specific contaminant of concern can reduce that contaminant at the tap. Monitoring or reporting violations are not something a filter addresses.
How many people does City of Newcastle serve? ▼
City of Newcastle serves approximately 3,595 people with drinking water across 1 ZIP code.
What is City of Newcastle's water source? ▼
City of Newcastle draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in City of Newcastle's water? ▼
The most recent 90th-percentile lead result on record is 0.001 mg/L (sample period ending 2025-12-31). This is at or below the EPA lead action level, which triggers system action and is not a safe level; the EPA health goal for lead is zero.
What is the demographic profile of the ZIP codes associated with City of Newcastle? ▼
The ZIP codes mapped to City of Newcastle have a median household income of $88,843 (Census ZIP-code estimate). Demographic data is sourced from the U.S. Census Bureau and EPA EJScreen.
Where does City of Newcastle get its water? ▼
City of Newcastle's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table. Based on the available data, the modeled source-contamination category is moderate; test local water to assess actual exposure.

How to cite this page

APA ZipCheckup. (n.d.). City of Newcastle (WY): 92 EPA Violations. https://zipcheckup.com/water-system/wy5600256/
BibTeX
@misc{zipcheckup-water-system-wy5600256,
  author = {{ZipCheckup}},
  title  = {{City of Newcastle (WY): 92 EPA Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/wy5600256/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ†’

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report โ†’

3

Contact your utility

City of Newcastle (EPA ID: WY5600256) - request the latest Consumer Confidence Report or ask about specific contaminants.

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