Clean Water Act discharge permit · NPDES SD0022934

ETHAN, TOWN OF, Ethan, SD: NPDES SD0022934 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
12Pollutants under a numeric limit
1Pollutants with an effluent exceedance

ETHAN, TOWN OF, held by Ethan, Town of, holds NPDES permit SD0022934, which discharges to Unnamed Tributary Of Twelvemile Creek. EPA’s file records it issued August 29, 2014 and expiring June 30, 2019. 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.

Identity

Facility as filed	ETHAN, TOWN OF
Permittee as filed	Ethan, Town of
NPDES ID	SD0022934
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	August 29, 2014
Expiration date	June 30, 2019
Issuing agency	SDDENR
Address	Ethan, SD 57334
Receiving water	Unnamed Tributary of Twelvemile Creek
Subwatershed	Ethan Lake (HUC 101600111202)
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – Sewerage Systems

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

14Pollutants on file
12Under a numeric limit
14With a violation of any kind
1With an effluent exceedance

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 measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Nitrogen, ammonia total [as N]	4	5	1	March 31, 2019	20% over the limit
Flow rate	2	4	0
BOD, 5-day, 20 deg. C	2	4	0
Nitrogen, nitrate total [as N]	2	4	0
Alkalinity, total [as CaCO3]	2	3	0
Solids, total suspended	2	3	0
E. coli, colony forming units [CFU]	2	3	0
Nitrogen, total [as N]	0	3	0
Temperature, water deg. centigrade	2	2	0
pH	2	2	0
Duration of discharge	2	2	0
Flow, total	1	2	0
Flowing, Receiving Stream	1	2	0
Phosphorus, total [as P]	0	1	0

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 SD0022934.

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 SD0022934 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES SD0022934, held by Ethan, Town of, a publicly owned treatment works in Ethan, SD, which discharges to Unnamed Tributary of Twelvemile Creek within the Ethan Lake subwatershed (HUC 101600111202). The permit is administratively continued and carries a Minor discharger class, with 1 pollutant under a numeric limit and 1 pollutant with an effluent exceedance listed. EPA's file records the permit as issued August 29, 2014 and expiring June 30, 2019, and the status reflects the file as loaded on October 14, 2026.