Drinking Water Compliance OS

CASPER, WY · Natrona County

POISON SPIDER I&S DISTRICT Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
WY5600073
System type
Community Water System
Population served
200
Service connections
93
Ownership
privately owned
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

  • Monitoring, Regular

    Endrin

    June 1, 1982 – May 31, 1983

    Archived
  • Monitoring, Regular

    Fluoride

    May 1, 1982 – April 30, 1983

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    July 1, 1980 – June 30, 1981

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    July 1, 1976 – June 30, 1980

    Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Contact

KOSSERT, BILL

307-267-4628

CASPER, WY 82604