Sam H. Hobbs Regional WW Facility (prev. Casper Wwtf)
200 N David Street, Casper, WY 82601 · Natrona County · Publicly Owned Treatment Works
- Average flow
- 6.6 MGD
- Design flow
- —
- NPDES permit
- WY0021920
- Effective
- Permit expires
- October 2030
- Population served
- —
- CWNS 2022
Sam H. Hobbs Regional WW Facility (prev. Casper Wwtf) is a publicly owned wastewater treatment works in Casper, Natrona County, Wyoming treating an average of 6.6 million gallons per day. It discharges under NPDES permit WY0021920 (effective), which expires in October 2030, with 14 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Sam H. Hobbs Regional WW Facility (prev. Casper Wwtf).
Available with a free Klarifi account
See the full treatment train at Sam H. Hobbs Regional WW Facility (prev. Casper Wwtf): structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 14
- Effluent violations
- 14
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Casper
Casper's capital improvement plan lists 69 water, sewer and wastewater line items worth $45M starting 2026–2030. The largest budgeted items are shown here.
All water and sewer capital projects in Casper →
| Project | Budget | Years |
|---|---|---|
| FY30 Water Main Replacements | $4,721,000 | 2030–2030 |
| FY29 Misc Water Main Replacement | $4,072,000 | 2029–2029 |
| FY27 Misc Water Main Replacements | $3,854,000 | 2027–2027 |
| FY28 Misc Water Main Replacement | $3,678,000 | 2028–2028 |
| Replace RAS pumps | $2,100,000 | 2030–2030 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
1 verified contact for Sam H. Hobbs Regional WW Facility (prev. Casper Wwtf), with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Sam H. Hobbs Regional WW Facility (prev. Casper Wwtf), plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wyoming
Glenrock · 21 mi away
0.17 MGD
Douglas · 46 mi away
0.43 MGD
Kaycee · 61 mi away
—
Hanna · 70 mi away
—
Wright · 74 mi away
0.09 MGD
Rock River · 78 mi away
—
Sinclair · 85 mi away
—
Rawlins · 88 mi away
0.85 MGD
Sam H. Hobbs Regional WW Facility (prev. Casper Wwtf): frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated April 13, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms