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Clean Water Act discharge permit · NPDES IDR10L0MT

RIVER VALLEY RANCH, Ellis, ID: NPDES IDR10L0MT discharge permit, effluent exceedances, inspections, penalties

RIVER VALLEY RANCH, held by Arlin Grimes, holds NPDES permit IDR10L0MT.

RIVER VALLEY RANCH, Ellis, Idaho: Coverage under a general permit IDR10L0MT, held by Arlin Grimes; Not needed.

RIVER VALLEY RANCH among its neighbors

EPA’s permit file holds 8 discharge permits in the Lower Patterson Creek-Pahsimeroi River subwatershed (HUC 170602020313), IDR10L0MT among them. Its county holds 23, 1 of them major permits; IDR10L0MT is a permit EPA has not classed major or minor.

Other permits in the Lower Patterson Creek-Pahsimeroi River subwatershed (HUC 170602020313)

What the register holds for RIVER VALLEY RANCH: its NPDES ID, its permit type and status, its its address in Ellis, Idaho. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR10L0MT.

Identity

Facility as filedRIVER VALLEY RANCH
Permittee as filedArlin Grimes
NPDES IDIDR10L0MT
Permit statusNot needed
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
AddressEllis, ID 83235
SubwatershedLower Patterson Creek-Pahsimeroi River (HUC 170602020313)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES IDR10L0MT.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES IDR10L0MT.

Inspections

EPA’s inspection file holds no inspection for NPDES IDR10L0MT.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES IDR10L0MT.

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, IDR10L0MT.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

Custer County shows violations on file for 23.1% of its 13 general permit coverages. The Lower Patterson Creek-Pahsimeroi River subwatershed, where RIVER VALLEY RANCH sits in Ellis, holds 8 NPDES permits.