POISON SPIDER I&S DISTRICT
PWS ID: WY5600073 · CASPER, Wyoming 82604
Population Served
200
Total Violations
72
Health-Based Violations
2
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 93
- County
- Natrona
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 58
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 19 | 2008 |
| Nitrate | MR | 8 | 1996 |
| Consumer Confidence Rule | Other | 6 | 2008 |
| Lead and Copper Rule | MR | 4 | 2005 |
| Surface Water Treatment Rule | MR | 3 | 1993 |
| Selenium | MR | 2 | 1993 |
| Chromium | MR | 2 | 1993 |
| Cadmium | MR | 2 | 1993 |
| Chlorine | MR | 2 | 2009 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1980 |
| Mercury | MR | 2 | 1993 |
| Arsenic | MR | 2 | 1993 |
| Surface Water Treatment Rule | TT | 2 | 1993 |
| Barium | MR | 2 | 1993 |
| BHC-GAMMA | MR | 1 | 1982 |
| Endrin | MR | 1 | 1982 |
| Fluoride | MR | 1 | 1982 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
| 2,4-D | MR | 1 | 1982 |
| 2,4,5-TP | MR | 1 | 1982 |
| Methoxychlor | MR | 1 | 1982 |
| Toxaphene | MR | 1 | 1982 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.