Clean Water Act discharge permit · NPDES IDR10L0DE
JOHNSTON ROAD IMPROVEMENTS, Grangeville, ID: NPDES IDR10L0DE discharge permit, effluent exceedances, inspections, penalties
- Not neededPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
JOHNSTON ROAD IMPROVEMENTS, held by Knife River Corporation - Mountain West, holds NPDES permit IDR10L0DE. 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.
What the register holds for JOHNSTON ROAD IMPROVEMENTS: its NPDES ID, its permit type and status, its its address in Grangeville, Idaho. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR10L0DE.
Identity
| Facility as filed | JOHNSTON ROAD IMPROVEMENTS |
|---|---|
| Permittee as filed | Knife River Corporation - Mountain West |
| NPDES ID | IDR10L0DE |
| Permit status | Not needed |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Address | Grangeville, ID 83530 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Upper Rock Creek (HUC 170602090701) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES IDR10L0DE.
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 IDR10L0DE.
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, IDR10L0DE.
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 IDR10L0DE there.
Nearby on the register
- Discharge permits in Grangeville
- Every permit record in Grangeville, A to Z
- Discharge permits in Idaho
- Every permit record in Idaho, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.