Velarion Records

Clean Water Act discharge permit · NPDES SDR10K367

B-21 STORAGE, Box Elder, SD: NPDES SDR10K367 discharge permit, effluent exceedances, inspections, penalties

B-21 STORAGE, held by B-21 Storage, holds NPDES permit SDR10K367, which discharges to Box Elder Creek. EPA’s file records it issued July 28, 2021 and expiring March 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for B-21 STORAGE: its NPDES ID, its permit type and status, its dates, its address in Box Elder, South Dakota, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES SDR10K367.

Identity

Facility as filedB-21 STORAGE
Permittee as filedB-21 Storage
NPDES IDSDR10K367
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
IssuedJuly 28, 2021
Expiration dateMarch 31, 2023
Issuing agencyState
AddressBox Elder, SD 57701
Receiving waterBox Elder Creek
Subwatershed101201110306-Boxelder Creek (HUC 101201110306)
NAICS236220 – Commercial and Institutional Building Construction
SIC1542 – Nonresidential Construction

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES SDR10K367.

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 SDR10K367.

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, SDR10K367.

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 SDR10K367 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

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