Monticello City
Monticello, UT 84535 · San Juan County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.32 MGD
- NPDES permit
- UT0024503
- Effective
- Permit expires
- March 2031
- Population served
- 2,000
- CWNS 2022
Monticello City is a publicly owned wastewater treatment plant in Monticello, San Juan County, Utah, serving about 2,000 residents. It discharges under NPDES permit UT0024503 (effective), which expires in March 2031, with 24 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Monticello City.
Available with a free Klarifi account
See the full treatment train at Monticello City: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 24
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Monticello City.
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Nearby wastewater treatment plants in Utah
Manti · 160 mi away
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Duchesne · 169 mi away
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Vernal · 177 mi away
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Parowan · 196 mi away
0.71 MGD
Salem · 200 mi away
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Spanish Fork · 201 mi away
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Cedar City · 206 mi away
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Eureka · 210 mi away
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Monticello City: 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 September 14, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms