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Clean Water Act discharge permit · NPDES IDR10C12Y

ITD D4 KN 19943 - US-93, 300 SOUTH ROAD, Jerome, ID: NPDES IDR10C12Y discharge permit, effluent exceedances, inspections, penalties

ITD D4 KN 19943 - US-93, 300 SOUTH ROAD, held by Idaho Transportation Department, District 4, holds NPDES permit IDR10C12Y, which discharges to Snake River. EPA’s file records it issued January 10, 2022 and expiring February 9, 2027.

ITD D4 KN 19943 - US-93, 300 SOUTH ROAD, Jerome, Idaho: Coverage under a general permit IDR10C12Y, held by Idaho Transportation Department, District 4; Construction stormwater; Effective; issued January 10, 2022, term to February 9, 2027; discharges to Snake River.

Idaho holds 3,630 Construction stormwater coverages of this permit type in EPA’s file; 576 were issued before IDR10C12Y. Idaho Transportation Department, District 4 holds 5 permits in Idaho.

Other permits held by Idaho Transportation Department, District 4

Coverages issued nearest IDR10C12Y

ITD D4 KN 19943 - US-93, 300 SOUTH ROAD among its neighbors

EPA’s permit file holds 7 discharge permits in the Town of Falls City subwatershed (HUC 170402120502), IDR10C12Y among them. Its county holds 32, 2 of them major permits; IDR10C12Y is a minor permit.

Other permits in the Town of Falls City subwatershed (HUC 170402120502)

What the register holds for ITD D4 KN 19943 - US-93, 300 SOUTH ROAD: its NPDES ID, its permit type and status, its dates, its address in Jerome, Idaho, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR10C12Y.

Identity

Facility as filedITD D4 KN 19943 - US-93, 300 SOUTH ROAD
Permittee as filedIdaho Transportation Department, District 4
NPDES IDIDR10C12Y
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJanuary 10, 2022
Expiration dateFebruary 9, 2027
AddressJerome, ID 83338
Receiving waterSnake River
SubwatershedTown of Falls City (HUC 170402120502)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES IDR10C12Y.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES IDR10C12Y.

Inspections

EPA’s inspection file holds no inspection for NPDES IDR10C12Y.

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 IDR10C12Y.

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, IDR10C12Y.

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Nearby on the register

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

What this page shows

Of the 20 storm water construction permits in Jerome County on EPA's NPDES register, 0.0% have a violation on file, and ITD D4 KN 19943 - US-93, 300 SOUTH ROAD is among them. The Town of Falls City subwatershed (HUC 170402120502) lists 7 NPDES permits.