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Clean Water Act discharge permit · NPDES IDR05J12A

IMC MIDDLETON #2, Middleton, ID: NPDES IDR05J12A discharge permit, effluent exceedances, inspections, penalties

IMC MIDDLETON #2, held by STAKER PARSON COMPANIES DBA IDAHO MATERIALS AND CONSTRUCTION, holds NPDES permit IDR05J12A, which discharges to Unnamed Agricultural Drain To Boise River. EPA’s file records it issued January 15, 2021 and expiring February 28, 2026. 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 IMC MIDDLETON #2: its NPDES ID, its permit type and status, its dates, its address in Middleton, Idaho, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR05J12A.

Identity

Facility as filedIMC MIDDLETON #2
Permittee as filedSTAKER PARSON COMPANIES DBA IDAHO MATERIALS AND CONSTRUCTION
NPDES IDIDR05J12A
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedJanuary 15, 2021
Expiration dateFebruary 28, 2026
AddressMiddleton, ID 83644
Receiving waterUnnamed agricultural drain to Boise River
SubwatershedMill Slough-Boise River (HUC 170501140410)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES IDR05J12A.

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 IDR05J12A.

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, IDR05J12A.

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 IDR05J12A there.

Nearby on the register

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