Clean Water Act discharge permit · NPDES UT0023639
TIMPANOGOS WASTEWATER TREATMENT FACILITY, American Fork, UT: NPDES UT0023639 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 30Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
TIMPANOGOS WASTEWATER TREATMENT FACILITY, held by TIMPANOGOS SPECIAL SERVICE DIS, holds NPDES permit UT0023639, which discharges to Utah Lake. EPA’s file records it issued July 8, 2020 and expiring July 7, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | TIMPANOGOS WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | TIMPANOGOS SPECIAL SERVICE DIS |
| NPDES ID | UT0023639 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | July 8, 2020 |
| Expiration date | July 7, 2025 |
| Issuing agency | Utah DEQ Water Quality |
| Address | American Fork, UT 84003 |
| Receiving water | UTAH LAKE |
| Subwatershed | Lower American Fork Canyon-Frontal Utah Lake (HUC 160202010803) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 39Pollutants on file
- 30Under a numeric limit
- 36With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 3 | 23 | 5 | September 30, 2025 | 114% over the limit |
| Nitrogen, ammonia total [as N] | 8 | 22 | 5 | December 31, 2012 | 127% over the limit |
| Chlorine, total residual | 0 | 3 | 3 | November 30, 2008 | 6,249% over the limit |
| Oxygen, dissolved [DO] | 1 | 8 | 2 | November 30, 2004 | 38% over the limit |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 1 | 3 | 1 | March 31, 2008 | |
| Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | 0 | 1 | 1 | September 30, 2000 | |
| Cyanide, total [as CN] | 2 | 24 | 0 | ||
| Arsenic, total [as As] | 2 | 24 | 0 | ||
| Cadmium, total [as Cd] | 2 | 24 | 0 | ||
| Chromium, total [as Cr] | 2 | 22 | 0 | ||
| Copper, total [as Cu] | 2 | 20 | 0 | ||
| Lead, total [as Pb] | 2 | 20 | 0 | ||
| Nickel, total [as Ni] | 2 | 20 | 0 | ||
| Silver, total [as Ag] | 2 | 20 | 0 | ||
| Zinc, total [as Zn] | 2 | 20 | 0 | ||
| Selenium, total [as Se] | 2 | 20 | 0 | ||
| Mercury, total [as Hg] | 2 | 20 | 0 | ||
| Molybdenum, total [as Mo] | 0 | 20 | 0 | ||
| BOD, 5-day, 20 deg. C | 3 | 19 | 0 | ||
| Thallium, total [as Tl] | 0 | 16 | 0 | ||
| Antimony, total [as Sb] | 0 | 16 | 0 | ||
| Aluminum, total [as Al] | 0 | 16 | 0 | ||
| Phenols | 0 | 16 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 15 | 0 | ||
| E. coli | 2 | 14 | 0 | ||
| pH | 2 | 12 | 0 | ||
| Phosphorus, total [as P] | 5 | 11 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 10 | 0 | ||
| BOD, 5-day, percent removal | 1 | 7 | 0 | ||
| Solids, suspended percent removal | 1 | 7 | 0 | ||
| Oil & Grease | 1 | 6 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 4 | 0 | ||
| Phosphate, ortho [as P] | 0 | 4 | 0 | ||
| Nitrogen, nitrate total [as NO3] | 1 | 3 | 0 | ||
| Nitrogen, nitrite total [as NO2] | 1 | 3 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 2 | 0 | ||
| Nitrogen, ammonia [NH3-N] | 8 | 0 | 0 | ||
| Phosphorus, ortho | 1 | 0 | 0 | ||
| Solids, total dissolved | 1 | 0 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 17, 2026 | Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
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.
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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 UT0023639 there.
Nearby on the register
- Discharge permits in American Fork
- Every permit record in American Fork, A to Z
- Discharge permits in Utah
- Every permit record in Utah, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.