Anaerobic digesters and biogas: wastewater treatment plants in Utah
8 plants · 31% of the state · 55 MGD reported by 4 plants
Klarifi identifies 8 publicly owned wastewater treatment plants with anaerobic digesters and biogas in Utah, 31% of the 26 plants in the state (55 MGD reported by 4 plants). The largest is Salt Lake City Water Reclamation Plant in Salt Lake City at 36.76 MGD.
Anaerobic digesters stabilise sludge in sealed heated tanks and produce biogas, visible from the air as digester silos and gas holders. Plants with digesters are typically above 5 MGD and are the buyers of mixing, heating, gas handling, cogeneration and dewatering equipment.
The largest plants with anaerobic digesters in Utah
| # | Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|---|
| 1 | Salt Lake City Water Reclamation Plant | Salt Lake City | 36.76 | UT0021725 | Dec 2029 | 1 |
| 2 | Central Davis Sd | Kaysville | 10.17 | UT0020974 | Apr 2025 | 0 |
| 3 | Spanish Fork City Corporation | Spanish Fork | 5.81 | UT0020109 | Jan 2027 | 99 |
| 4 | Snyderville Basin Water Reclamation District | Park City | 2.61 | UT0020001 | Apr 2031 | 0 |
| 5 | Ashley Valley Water & Sewer Imp Dist | Vernal | — | UT0025348 | Nov 2021 | 1 |
| 6 | Magna Water District WWTP | Magna | — | UT0021440 | Mar 2029 | 0 |
| 7 | Orem City Corporation | Orem | — | UT0020915 | Mar 2031 | 2 |
| 8 | South Davis Sewer Improvement District South Plant | North Salt Lake | — | UT0021628 | Dec 2026 | 1 |
Contacts and project signals for every plant on this list
Klarifi adds verified decision-maker contacts, permit limits, discharge monitoring data and the capital projects planned in each city, filterable by technology, size and compliance record.
Other technologies in Utah
Anaerobic digesters and biogas in other states
Anaerobic digesters and biogas in Utah: 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.
Wastewater terms: Anaerobic digester · Biosolids · Sludge dewatering · Centrate · Biological nutrient removal · Tertiary treatment · all terms