Clean Water Act discharge permit · NPDES SDR10L026
ISABELLA ADDITION, Watertown, SD: NPDES SDR10L026 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ISABELLA ADDITION, held by Steve Horning, holds NPDES permit SDR10L026. EPA’s file records it issued November 1, 2023 and expiring October 31, 2028. 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 ISABELLA ADDITION: its NPDES ID, its permit type and status, its dates, its address in Watertown, South Dakota. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES SDR10L026.
Identity
| Facility as filed | ISABELLA ADDITION |
|---|---|
| Permittee as filed | Steve Horning |
| NPDES ID | SDR10L026 |
| 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 | November 1, 2023 |
| Expiration date | October 31, 2028 |
| Issuing agency | SDDANR |
| Address | Watertown, SD 57201 |
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 SDR10L026.
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 SDR10L026.
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, SDR10L026.
Start the watch
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- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 SDR10L026 there.
Nearby on the register
- Discharge permits in Watertown
- Every permit record in Watertown, A to Z
- Discharge permits in South Dakota
- Every permit record in South Dakota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.