Clean Water Act discharge permit · NPDES UT0025950
MONA WASTEWATER TREATMENT PLANT, Mona, UT: NPDES UT0025950 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 27Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
MONA WASTEWATER TREATMENT PLANT, held by Mona Wastewater Treatment Plant, holds NPDES permit UT0025950, which discharges to Mona Reservoir. EPA’s file records it issued December 7, 2017 and expiring December 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MONA WASTEWATER TREATMENT PLANT |
|---|---|
| Permittee as filed | Mona Wastewater Treatment Plant |
| NPDES ID | UT0025950 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 7, 2017 |
| Expiration date | December 31, 2022 |
| Issuing agency | Utah Division of Water Quality |
| Address | Mona, UT 84645 |
| Receiving water | Mona Reservoir |
| Subwatershed | Mona Reservoir-Current Creek (HUC 160202010109) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 33Pollutants on file
- 27Under a numeric limit
- 33With a violation of any kind
- 5With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 3 | 210 | 35 | February 28, 2021 | 447% over the limit |
| Nitrogen, ammonia total [as N] | 2 | 39 | 4 | July 31, 2025 | 1,175% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 111 | 1 | April 30, 2021 | 8% over the limit |
| pH | 2 | 111 | 1 | February 28, 2019 | |
| BOD, 5-day, percent removal | 1 | 56 | 1 | January 31, 2016 | 20% over the limit |
| Oxygen, dissolved [DO] | 3 | 123 | 0 | ||
| Phosphorus, total [as P] | 2 | 112 | 0 | ||
| Solids, total suspended | 2 | 110 | 0 | ||
| E. coli | 2 | 110 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 57 | 0 | ||
| Phosphate, ortho [as P] | 1 | 57 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 55 | 0 | ||
| Oil and grease | 1 | 55 | 0 | ||
| Solids, suspended percent removal | 1 | 55 | 0 | ||
| Oil and grease visual | 1 | 55 | 0 | ||
| Temperature, water deg. centigrade | 0 | 9 | 0 | ||
| Cyanide, total [as CN] | 2 | 6 | 0 | ||
| Arsenic, total [as As] | 2 | 6 | 0 | ||
| Cadmium, total [as Cd] | 2 | 6 | 0 | ||
| Chromium, total [as Cr] | 2 | 6 | 0 | ||
| Copper, total [as Cu] | 2 | 6 | 0 | ||
| Lead, total [as Pb] | 2 | 6 | 0 | ||
| Molybdenum, total [as Mo] | 2 | 6 | 0 | ||
| Nickel, total [as Ni] | 2 | 6 | 0 | ||
| Silver, total [as Ag] | 2 | 6 | 0 | ||
| Zinc, total [as Zn] | 2 | 6 | 0 | ||
| Selenium, total [as Se] | 2 | 6 | 0 | ||
| Mercury, total [as Hg] | 2 | 6 | 0 | ||
| Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | 0 | 4 | 0 | ||
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | 0 | 4 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 2 | 0 | ||
| Nitrogen, nitrate total [as NO3] | 0 | 2 | 0 | ||
| Nitrogen, nitrite total [as NO2] | 0 | 2 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES UT0025950.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, UT0025950.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID UT0025950 there.
Nearby on the register
- Discharge permits in Mona
- Every permit record in Mona, A to Z
- Discharge permits in Utah
- Every permit record in Utah, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.