GRASSLANDS/THUNDER BASIN ENTERPRISES
Wyoming — Community Water System — PWSID: WY5601629
System Information
| PWSID | WY5601629 |
| System Name | GRASSLANDS/THUNDER BASIN ENTERPRISES |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 8, 2010 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wyoming |
| City | DOUGLAS |
| ZIP Code | 82633 |
| Address | 103 HWY 59 |
| Organization | SMITH-MOORE, BONNIE A. |
| Phone | 307-359-8076 |
Population & Service
| Population Served | — |
| Service Connections | 27 |
Drinking Water Violations (181)
This water system has 181 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, 2012 | Jul 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2012 | — | |
| Jun 1, 2012 | Jun 30, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | No | — | 15 pCi/L | — | Archived | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | No | — | 30 ug/L | — | Archived | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | No | — | — | — | Archived | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | No | — | — | — | Archived | Jun 30, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | 15 pCi/L | — | Archived | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | — | — | Archived | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | 30 ug/L | — | Archived | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | — | — | Archived | Mar 31, 2012 | — | |
| Nov 10, 2011 | — | Other | No | No | — | — | — | Resolved | Sep 10, 2012 | — | |
| Nov 10, 2011 | — | Other | No | No | — | — | — | Resolved | Sep 10, 2012 | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 569 PCI/L | 15 pCi/L | — | Archived | Dec 31, 2011 | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 402 PCI/L | 30 ug/L | — | Archived | Dec 31, 2011 | — | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | — | 15 pCi/L | — | Archived | Sep 30, 2011 | — | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | — | — | — | Archived | Sep 30, 2011 | — | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | — | — | — | Archived | Sep 30, 2011 | — | |
| Jul 1, 2011 | Sep 30, 2011 | MR | No | Yes | — | 30 ug/L | — | Archived | Sep 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.0004 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.0004 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.00005 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.00005 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.5 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Jun 30, 2011 | — |
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.