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Clean Water Act discharge permit · NPDES IDR10028A

CALVARY SPRINGS SUBDIVISION, Nampa, ID: NPDES IDR10028A discharge permit, effluent exceedances, inspections, penalties

CALVARY SPRINGS SUBDIVISION, held by Challenger Development, Inc., holds NPDES permit IDR10028A. EPA’s file records it issued December 27, 2019 and expiring February 15, 2022. 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 CALVARY SPRINGS SUBDIVISION: its NPDES ID, its permit type and status, its dates, its address in Nampa, Idaho. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IDR10028A.

Identity

Facility as filedCALVARY SPRINGS SUBDIVISION
Permittee as filedChallenger Development, Inc.
NPDES IDIDR10028A
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
ProgramConstruction stormwater
IssuedDecember 27, 2019
Expiration dateFebruary 15, 2022
Issuing agencyU.S. EPA
AddressNampa, ID 83686
SubwatershedLower Indian Creek (HUC 170501140507)

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 IDR10028A.

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 IDR10028A.

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, IDR10028A.

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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 IDR10028A there.

Nearby on the register

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

What this page shows

Of the 208 storm water construction permits in Nampa, 0.0% carry a violation on file. The Lower Indian Creek subwatershed lists 358 NPDES permits, and CALVARY SPRINGS SUBDIVISION is among them. Of the 84 storm water construction permits in Nampa, 13.1% were issued before CALVARY SPRINGS SUBDIVISION's permit.