Clean Water Act discharge permit · NPDES SDL022128

SIOUX FALLS, CITY OF (BIOSOLIDS), Sioux Falls, City Of, SD: NPDES SDL022128 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

SIOUX FALLS, CITY OF (BIOSOLIDS), held by Sioux Falls, City of (Biosolids), holds NPDES permit SDL022128, which discharges to Big Sioux River. EPA’s file records it issued March 21, 2014 and expiring March 31, 2019. 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.

Identity

Facility as filed	SIOUX FALLS, CITY OF (BIOSOLIDS)
Permittee as filed	Sioux Falls, City of (Biosolids)
NPDES ID	SDL022128
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Associated permit record
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Biosolids
Issued	March 21, 2014
Expiration date	March 31, 2019
Issuing agency	SDDENR
Address	Sioux Falls, City Of, SD 57104
Receiving water	Big Sioux River
Subwatershed	Cactus Hills-Big Sioux River (HUC 101702031705)
Other EPA IDs (FRS)	RCRA handler SDD982596009; ICIS-AIR source SD0000004609900012

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

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 SDL022128.

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

1Single-event violations

Date	What EPA recorded	Agency
January 1, 2021	PR: Biosolids - Land Application: Applied to Land at Greater than the Agronomic Rate Violation (001)	ST6

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 SDL022128 there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit SDL022128, held by Sioux Falls, City of (Biosolids) for its Biosolids program, which discharges to the Big Sioux River in the Cactus Hills-Big Sioux River subwatershed (HUC 101702031705). The permit is administratively continued, with a Minor discharger class, 0 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance. Per EPA's file, it was issued March 21, 2014 and expired March 31, 2019.