Clean Water Act discharge permit · NPDES WIR10I04X
SIMPSON SITE, Lac Du Flambeau, WI: NPDES WIR10I04X discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
SIMPSON SITE, held by LDF Business Development Corp, holds NPDES permit WIR10I04X. EPA’s file records it issued April 7, 2025 and expiring February 17, 2027. 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 SIMPSON SITE: its NPDES ID, its permit type and status, its dates, its address in Lac Du Flambeau, Wisconsin. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES WIR10I04X.
Identity
| Facility as filed | SIMPSON SITE |
|---|---|
| Permittee as filed | LDF Business Development Corp |
| NPDES ID | WIR10I04X |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | April 7, 2025 |
| Expiration date | February 17, 2027 |
| Issuing agency | U.S. EPA |
| Address | Lac Du Flambeau, WI 54538 |
| Subwatershed | Flambeau Lake-Bear River (HUC 070500020202) |
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 WIR10I04X.
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 WIR10I04X.
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.
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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 WIR10I04X there.
Nearby on the register
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- Every permit record in Wisconsin, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.