Clean Water Act discharge permit · NPDES UT0025259
AMERICAN GILSONITE COMPANY - COTTONWOOD, Vernal, UT: NPDES UT0025259 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
AMERICAN GILSONITE COMPANY - COTTONWOOD, held by American Gilsonite Company, holds NPDES permit UT0025259, which discharges to Unnamed Drywash Intersects Willow Creek. EPA’s file records it issued August 25, 2016 and expiring August 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | AMERICAN GILSONITE COMPANY - COTTONWOOD |
|---|---|
| Permittee as filed | American Gilsonite Company |
| NPDES ID | UT0025259 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 25, 2016 |
| Expiration date | August 31, 2021 |
| Issuing agency | U.S. EPA Region 8 |
| Address | Vernal, UT 84078 |
| Receiving water | Unnamed Drywash Intersects Willow Creek |
| Subwatershed | Upper Sand Wash (HUC 140500071101) |
| NAICS | 212399 – All Other Nonmetallic Mineral Mining |
| SIC | 1499 – Miscellaneous Nonmetallic Minerals |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 22Pollutants on file
- 6Under a numeric limit
- 22With a violation of any kind
- 3With 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 dissolved | 4 | 104 | 10 | December 31, 2023 | 270,900% over the limit |
| Solids, total suspended | 4 | 97 | 4 | October 31, 2022 | 900% over the limit |
| pH | 4 | 91 | 1 | February 29, 2020 | |
| Flow rate | 4 | 52 | 0 | ||
| Oil and grease visual | 2 | 45 | 0 | ||
| Oil & Grease | 2 | 39 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 36 | 0 | ||
| Floating solids, waste or visible foam-visual | 0 | 20 | 0 | ||
| Volume | 0 | 14 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 7 | 0 | ||
| Calcium, total [as Ca] | 0 | 7 | 0 | ||
| Magnesium, total [as Mg] | 0 | 7 | 0 | ||
| Sodium, total [as Na] | 0 | 7 | 0 | ||
| Sodium adsorption ratio | 0 | 7 | 0 | ||
| Potassium, total [as K] | 0 | 7 | 0 | ||
| Chloride [as Cl] | 0 | 7 | 0 | ||
| Fluoride, total [as F] | 0 | 7 | 0 | ||
| Iron, total [as Fe] | 0 | 7 | 0 | ||
| Bicarbonate as [CaCO3] | 0 | 7 | 0 | ||
| Sulfate | 0 | 7 | 0 | ||
| Carbonate ion [as CaCO3] | 0 | 5 | 0 | ||
| Temperature, water deg. centigrade | 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 UT0025259.
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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Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.