Velarion Records
Follow this permit Velarion Records emails you this permit’s record, cited to the public filing, and tells you when the register changes it. Free.
We’ll email you a link to confirm. The continuous daily watch on every change is the paid alert. Unsubscribe any time.
Also free: The Pay Desk, the weekly executive pay briefing.

Clean Water Act discharge permit · NPDES IDR05C407

UNIMIN CORPORATION, Emmett, ID: NPDES IDR05C407 discharge permit, effluent exceedances, inspections, penalties

UNIMIN CORPORATION holds NPDES permit IDR05C407, which discharges to Unnamed Trib To Payette River, Willow Creek. 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 UNIMIN CORPORATION: its NPDES ID, its permit type and status, its its address in Emmett, Idaho, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR05C407.

Identity

Facility as filedUNIMIN CORPORATION
Permittee as filedUNIMIN CORPORATION
NPDES IDIDR05C407
Permit statusPending
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
AddressEmmett, ID 83617
Receiving waterUNNAMED TRIB TO PAYETTE RIVER, WILLOW CREEK
Receiving water impaired303(D) Listed
SubwatershedSevenmile Slough-Payette River (HUC 170501220903)
Other EPA IDs (FRS)RCRA handler IDD144479508; ICIS-AIR source ID0000001604500003

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES IDR05C407.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES IDR05C407.

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, IDR05C407.

Start the watch

How often?
  • 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 IDR05C407 there.

Nearby on the register

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

What this page shows

UNIMIN CORPORATION accounts for the 1 storm water industrial permit in Gem County, counting this one. The Sevenmile Slough-Payette River subwatershed holds 27 NPDES permits, this one included.