Clean Water Act discharge permit · NPDES NDG426531
JMAC RESOURCES, WASTEWATER TREATMENT FACILITY, Williston, ND: NPDES NDG426531 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
JMAC RESOURCES, WASTEWATER TREATMENT FACILITY, held by JMAC Resources, holds NPDES permit NDG426531, which discharges to Lake Sakakawea. EPA’s file records it issued December 20, 2017 and expiring December 31, 2022. 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 | JMAC RESOURCES, WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | JMAC Resources |
| NPDES ID | NDG426531 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 20, 2017 |
| Expiration date | December 31, 2022 |
| Issuing agency | North Dakota Department of Environmental Quality |
| Address | Williston, ND 58801 |
| Receiving water | Lake Sakakawea |
| Subwatershed | Sloulin International Airport (HUC 101101010303) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 13Under a numeric limit
- 13With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 3 | 75 | 0 | ||
| Solids, total suspended | 3 | 75 | 0 | ||
| Oil & Grease | 3 | 75 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 75 | 0 | ||
| Chloride [as Cl] | 3 | 75 | 0 | ||
| Chlorine, total residual | 3 | 75 | 0 | ||
| Bromide [as Br] | 3 | 75 | 0 | ||
| pH | 2 | 50 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 50 | 0 | ||
| E. coli | 3 | 39 | 0 | ||
| Flow, total | 1 | 25 | 0 | ||
| Duration of discharge | 1 | 25 | 0 | ||
| Oil and grease visual | 1 | 25 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES NDG426531.
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 NDG426531.
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
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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 NDG426531 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.