Poison Spider I&s District
EPA ID: WY5600073 · 200 people served · 1 ZIP code
Throughout five consecutive years of federal water monitoring, Poison Spider I&s District recorded zero violations — solid performance for a utility serving 200 people.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 2 (2024) to 1 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Poison Spider I&s District Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Poison Spider I&s District serves a community with a median household income of $57,019 and an estimated 1,890 residents across its service area. Approximately 62% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Poison Spider I&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.
About 1% of homes in Natrona County, Wyoming rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
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
Poison Spider I&s District (EPA ID: WY5600073) is a community water system in Wyoming that serves approximately 200 people from surface water sources.
This system serves ZIP code 82644 in Mills.
Violation History
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 FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
- 82644 — Mills
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Poison Spider I&s District (WY5600073) on EPA.gov.
Frequently Asked Questions
Is Poison Spider I&s District water safe to drink?
Based on EPA records, Poison Spider I&s District has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Poison Spider I&s District serve?
Poison Spider I&s District serves approximately 200 people across 1 ZIP code in Wyoming.
Where does Poison Spider I&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:
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.
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.