City of Newcastle
EPA ID: WY5600256 · 3,595 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for City of Newcastle (WY5600256): 92 EPA violations in the last five years. On record: City of Newcastle, 92 violations, all resolved, 3,595 in service area.
Data: EPA SDWIS
Service Area Map
Coverage area for City of Newcastle Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The City of Newcastle serves a community with a median household income of $88,843 and an estimated 5,411 residents across its service area. Approximately 63% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
City of Newcastle's water is pumped from underground aquifers. 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.
Infrastructure Risk
Detected Contaminants
How City of Newcastle compares to EPA limits
What This Means For You
PFOA at 2 mg/L exceeds the EPA maximum of 0.000004 mg/L.
PFNA at 2 mg/L exceeds the EPA maximum of 0.00001 mg/L.
Mercury at 4 mg/L exceeds the EPA maximum of 0.002 mg/L. Kidney damage, neurological impairment. Consider activated carbon (GAC) filtration.
Chlorodibromomethane at 2 mg/L exceeds the EPA maximum of 0.002 mg/L. Liver cancer, brain cancer (known carcinogen). Consider granular activated carbon (GAC) filtration.
Cadmium at 4 mg/L exceeds the EPA maximum of 0.005 mg/L. Kidney damage accumulating over lifetime; probable carcinogen. Consider reverse osmosis filtration.
Mercury was detected in this water system. activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Wyoming
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
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
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 | Surface Water Treatment Rule | Non-health-based | Resolved |
| January 1, 2025 | Monochloroacetic Acid | 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 | Fluoride | Non-health-based | Archived |
| January 1, 2023 | Selenium | Non-health-based | Archived |
| January 1, 2023 | Nickel | Non-health-based | Archived |
| January 1, 2023 | Nitrite | Non-health-based | Archived |
| January 1, 2023 | Contaminant 1036 | Non-health-based | Archived |
| January 1, 2023 | Mercury | Non-health-based | Archived |
| January 1, 2023 | Contaminant 1075 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 1085 | Non-health-based | Archived |
| January 1, 2023 | Contaminant 1045 | 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 | Fluoride | Non-health-based | Archived |
| January 1, 2023 | Selenium | Non-health-based | Archived |
| January 1, 2023 | Nickel | Non-health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Barium | Inorganic | 4 | No |
| Cadmium | Inorganic | 4 | No |
| Chromium | Inorganic | 4 | No |
| Fluoride | Inorganic | 4 | No |
| Selenium | Inorganic | 4 | No |
| Nickel | Inorganic | 4 | No |
| Nitrite | Inorganic | 4 | No |
| Contaminant 1036 | Other Violation | 4 | No |
| Contaminant 1045 | Other Violation | 4 | No |
| Mercury | Inorganic | 4 | No |
| Contaminant 1075 | Other Violation | 4 | No |
| Contaminant 1085 | Other Violation | 4 | No |
| Monochloroacetic Acid | Disinfection Byproducts | 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 | N/A |
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
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
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.
- 82701 - Newcastle
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record 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: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). City of Newcastle (WY): 92 EPA Violations. https://zipcheckup.com/water-system/wy5600256/
@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
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
City of Newcastle (EPA ID: WY5600256) - request the latest Consumer Confidence Report or ask about specific contaminants.