Clean Water Act discharge permit · NPDES IDR1001AC

25TH ST IMPROVEMENTS, Idaho Falls, ID: NPDES IDR1001AC discharge permit, effluent exceedances, inspections, penalties

Not neededPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

25TH ST IMPROVEMENTS, held by TMC Contractors Inc, holds NPDES permit IDR1001AC. 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 25TH ST IMPROVEMENTS: its NPDES ID, its permit type and status, its its address in Idaho Falls, Idaho. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR1001AC.

Identity

Facility as filed	25TH ST IMPROVEMENTS
Permittee as filed	TMC Contractors Inc
NPDES ID	IDR1001AC
Permit status	Not needed
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Address	Idaho Falls, ID 83401
Subwatershed	Upper Sand Creek (HUC 170402070503)

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 IDR1001AC.

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 IDR1001AC.

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, IDR1001AC.

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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 IDR1001AC there.

Nearby on the register

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

This public-records page covers the NPDES discharge permit IDR1001AC for 25TH ST IMPROVEMENTS in Idaho Falls, ID, held by TMC Contractors Inc, a construction stormwater coverage under a general permit with a permit status of Not needed. The page lists 0 pollutants on file, 0 under a numeric limit, 0 with a violation of any kind, and 0 with an effluent exceedance. The status and dates reflect EPA's permit file as loaded on September 15, 2026.