Water System Report WY

South Thermopolis W&s District

EPA ID: WY5601083 · 450 people served · 1 ZIP code

South Thermopolis W&s District earns a clean bill from EPA monitoring — no violations in five years across a service area of 450 people.

Data: EPA SDWIS Last verified: 2026-04-02

450
People Served
1
ZIP Code Served
0
Violations (5yr)
Surface Water
Water Source
0
Contaminants Flagged
$218K
Median Home Value in Service Area

Service Area Map

Coverage area for South Thermopolis W&s District Source: EPA SDWIS service area boundaries.

Service area boundary

Service Area Demographics

$67,869
Median Household Income
4,534
Service Area Population
0%
Disadvantaged Population
60th
Poverty Percentile
50th
Energy Burden Percentile
74%
Pre-1986 Housing

The South Thermopolis W&s District serves a community with a median household income of $67,869 and an estimated 4,534 residents across its service area. Approximately 74% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

🌊 Where Does Your Water Come From?

Surface Water

South Thermopolis W&s District's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.

Moderate Risk
Source Contamination Risk
10th
Wastewater Discharge Proximity
0th
Superfund Site Proximity

About 1% of homes in Hot Springs County, Wyoming rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.

Infrastructure Risk

49 yr
Avg Pipe Age
Copper
Pipe Material
21 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 70% of expected lifespan used End of life

Comparable Water Systems

Similar-sized systems in Wyoming

0 violations
Encampment, Town of
450 people
C 1 violation
Big Piney, Town of
445 people
C 79 violations
Hudson, Town of
460 people
B 0 violations
C 8 violations

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

Flood Insurance Radon Mitigation
Flood Insurance $1,800
Radon Mitigation $1,200
Total Estimated Cost $3,000

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

South Thermopolis W&s District (EPA ID: WY5601083) is a community water system in Wyoming that serves approximately 450 people from surface water sources.

This system serves ZIP code 82443 in Thermopolis.

Violation History

No violations recorded — This water system has no recorded EPA violations in the past 5 years.

Lead & Copper

No Lead and Copper Rule sampling data available for this water system.

Need help with your water quality?

Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400

Find the Right Water Filter

Free 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.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for South Thermopolis W&s District (WY5601083) on EPA.gov.

Frequently Asked Questions

Is South Thermopolis W&s District water safe to drink?

Based on EPA records, South Thermopolis W&s District has no recorded violations in the past 5 years — a positive indicator of water quality management.

How many people does South Thermopolis W&s District serve?

South Thermopolis W&s District serves approximately 450 people across 1 ZIP code in Wyoming.

Where does South Thermopolis W&s District get its water?

The primary water source is surface water.

Lead Service Line Inventory

Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:

0
Confirmed Lead
0
Galvanized — Replacement Required
0
Unknown Material
183
Confirmed Non-Lead

This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.

Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.

Federal Regulatory Status · 2026Q1
LCRR inventory submission: Reported all required service line types
Latest tap sample on 2022-01-01 did not exceed the federal lead action level.
Population served: 450
Reported to Wyoming

Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026

ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.

Learn about lead in drinking water →

Frequently Asked Questions

Should I use a water filter?
South Thermopolis W&s District meets EPA standards, but a water filter can reduce trace contaminants below detectable levels for added peace of mind.
How many people does South Thermopolis W&s District serve?
South Thermopolis W&s District serves approximately 450 people with drinking water across 1 ZIP code.
What is South Thermopolis W&s District's water source?
South Thermopolis W&s District draws water from surface water sources. Source type affects which contaminants are most likely to be present.
What is the demographic profile of South Thermopolis W&s District's service area?
The South Thermopolis W&s District service area has a median household income of $67,869. Demographic data is sourced from the U.S. Census Bureau and EPA EJScreen.
Where does South Thermopolis W&s District get its water?
South Thermopolis W&s District's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap. Based on available data, the source contamination risk is moderate.
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