POISON SPIDER I&S DISTRICT
Wyoming - Community Water System - PWSID: WY5600073
System Information
| PWSID | WY5600073 |
| System Name | POISON SPIDER I&S DISTRICT |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wyoming |
| City | CASPER |
| ZIP Code | 82604 |
| Address | 4420 S. 12 Mile Road |
| Organization | KOSSERT, BILL |
| Phone | 307-267-4628 |
Population & Service
| Population Served | 200 |
| Service Connections | 93 |
Drinking Water Violations (72)
This water system has 72 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2009 | Sep 30, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2009 | - | |
| Jul 1, 2009 | Sep 30, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2009 | - | |
| Aug 1, 2008 | Aug 31, 2008 | MR | No | No | - | 5% of samples | - | Archived | Aug 31, 2008 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Jul 21, 2008 | - | |
| Oct 1, 2007 | - | Other | No | No | - | - | - | Resolved | Nov 5, 2007 | - | |
| Oct 1, 2007 | - | Other | No | No | - | - | - | Resolved | Nov 5, 2007 | - | |
| Oct 1, 2007 | - | Other | No | No | - | - | - | Resolved | Nov 5, 2007 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Aug 8, 2007 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Aug 8, 2007 | - | |
| Oct 1, 2006 | Oct 31, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2006 | - | |
| Oct 1, 2006 | Oct 31, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2006 | - | |
| Sep 1, 2006 | Sep 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2006 | - | |
| Sep 1, 2006 | Sep 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2006 | - | |
| Oct 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 23, 2008 | - | |
| Oct 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 23, 2008 | - | |
| Oct 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Dec 23, 2008 | - | |
| Aug 1, 2005 | Aug 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2005 | - | |
| Aug 1, 2005 | Aug 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2005 | - | |
| Feb 1, 2003 | Feb 28, 2003 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2003 | - | |
| Apr 1, 2000 | Apr 30, 2000 | MR | No | No | - | 5% of samples | - | Archived | Apr 30, 2000 | - | |
| Mar 1, 2000 | Mar 31, 2000 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 2000 | - | |
| Oct 1, 1999 | Oct 31, 1999 | MR | No | No | - | 5% of samples | - | Archived | Oct 31, 1999 | - | |
| Sep 1, 1999 | Sep 30, 1999 | MR | No | No | - | 5% of samples | - | Archived | Sep 30, 1999 | - | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1996 | - | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 1996 | - | |
| Jan 1, 1995 | Mar 31, 1995 | MR | No | Yes | - | 10 mg/L | - | Archived | Mar 31, 1995 | - | |
| Oct 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 1994 | - | |
| Jul 1, 1994 | Sep 30, 1994 | MR | No | Yes | - | 10 mg/L | - | Archived | Sep 30, 1994 | - | |
| Dec 1, 1993 | Dec 31, 1993 | TT | Yes | No | - | - | - | Archived | Dec 31, 1993 | - | |
| Oct 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 1997 | - | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | Yes | - | - | - | Archived | Sep 30, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MR | No | Yes | - | - | - | Archived | Aug 31, 1993 | - | |
| Jul 1, 1993 | Jul 31, 1993 | MR | No | Yes | - | - | - | Archived | Jul 31, 1993 | - | |
| Jul 1, 1993 | Sep 30, 1993 | MR | No | Yes | - | 10 mg/L | - | Archived | Sep 30, 1993 | - | |
| Apr 1, 1993 | Jun 30, 1993 | MR | No | Yes | - | 10 mg/L | - | Archived | Jun 30, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.1 mg/L | - | Archived | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.010 mg/L | - | Archived | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 2 mg/L | - | Archived | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.05 mg/L | - | Archived | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Archived | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.002 mg/L | - | Archived | Dec 31, 1993 | - | |
| May 1, 1992 | May 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | May 31, 1992 | - | |
| Mar 1, 1992 | Mar 31, 1992 | MR | No | No | - | 5% of samples | - | Archived | Mar 31, 1992 | - | |
| Jan 1, 1992 | - | TT | Yes | No | - | - | - | Resolved | Oct 12, 2006 | - | |
| Jun 1, 1982 | May 31, 1983 | MR | No | Yes | - | 0.04 mg/L | - | Archived | May 31, 1983 | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.