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Clean Water Act discharge permit · NPDES SD0028193

REDFIELD ENERGY LLC, Redfield, SD: NPDES SD0028193 discharge permit, effluent exceedances, inspections, penalties

REDFIELD ENERGY LLC, held by Redfield Energy LLC, holds NPDES permit SD0028193, which discharges to Unnamed Tributary Of Turtle Creek. EPA’s file records it issued September 25, 2006 and expiring September 30, 2011. 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 filedREDFIELD ENERGY LLC
Permittee as filedRedfield Energy LLC
NPDES IDSD0028193
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 25, 2006
Expiration dateSeptember 30, 2011
Issuing agencySDDENR
AddressRedfield, SD 57469
Receiving waterUnnamed Tributary of Turtle Creek
SubwatershedOutlet Turtle Creek (HUC 101600090703)
Other EPA IDs (FRS)ICIS-AIR source SD0000004611500005

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

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Copper, total recoverable22323June 30, 2019172% over the limit
Chlorine, total residual155February 29, 20083,742% over the limit
pH233November 30, 2007
Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia133August 31, 2009
Selenium, total recoverable422January 31, 201426% over the limit
Solids, total dissolved420
Flow, total110
Hydrocarbons, petroleum110
Conductivity400
Hardness, total [as CaCO3]400
Arsenic, total recoverable400
Nickel, total recoverable400
Zinc, total recoverable400
Cadmium, total recoverable400
Lead, total recoverable400
Chromium, total recoverable400
Molybdenum, total recoverable400
Temperature, water deg. fahrenheit200
Flow rate200
BOD, 5-day, 20 deg. C200
Alkalinity, total [as CaCO3]200
Solids, total suspended200
Nitrogen, ammonia total [as N]200
Nitrogen, nitrate total [as N]200
Oxygen, dissolved [DO]100
Floating solids, waste or visible foam-visual100
Oil and grease visual100
Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas100

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 SD0028193.

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 SD0028193 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act NPDES discharge permit SD0028193, held by REDFIELD ENERGY LLC in Redfield, SD, which discharges to Unnamed Tributary of Turtle Creek in the Turtle Creek subwatershed (HUC 101600090703). The permit is administratively continued and carries a Minor discharger class of 28, with 5 pollutants under a numeric limit and 5 pollutants showing an effluent exceedance.