Clean Water Act discharge permit · NPDES SD0020940

PARKER, CITY OF, Parker, SD: NPDES SD0020940 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
12Pollutants under a numeric limit
3Pollutants with an effluent exceedance

PARKER, CITY OF, held by Parker, City of, holds NPDES permit SD0020940, which discharges to West Fork Of The Vermillion River. EPA’s file records it issued July 1, 2019 and expiring June 30, 2024. 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	PARKER, CITY OF
Permittee as filed	Parker, City of
NPDES ID	SD0020940
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	July 1, 2019
Expiration date	June 30, 2024
Issuing agency	SDDANR
Address	Parker, SD 57053
Receiving water	West Fork of the Vermillion River
Subwatershed	Outlet West Fork Vermillion River (HUC 101701020606)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

17Pollutants on file
12Under a numeric limit
17With a violation of any kind
3With 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]	12	212	16	March 31, 2020	99,999% over the limit
pH	2	198	4	April 30, 2022
BOD, 5-day, 20 deg. C	2	202	2	March 31, 2025	99,999% over the limit
Temperature, water deg. centigrade	2	198	0
Solids, total suspended	2	198	0
Flow rate	2	162	0
Duration of discharge	1	81	0
Coliform, fecal general	0	72	0
Flow	0	46	0
Flow, in conduit or thru treatment plant	0	36	0
Flow, total	1	35	0
E. coli, colony forming units [CFU]	2	30	0
Chlorine, total residual	0	18	0
Phosphorus, total [as P]	1	4	0
Nitrogen, total [as N]	1	3	0
Flowing, Receiving Stream	1	2	0
Temperature, water deg. fahrenheit	0	2	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 SD0020940.

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 SD0020940 there.

Nearby on the register

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

This public-records page covers the Clean Water Act NPDES discharge permit SD0020940, held by Parker, City of, for PARKER, CITY OF in Parker, SD, which discharges to the West Fork of the Vermillion River. The permit is listed as administratively continued, a minor discharger class, with 12 pollutants under a numeric limit and 3 pollutants with an effluent exceedance. The status and dates reflect EPA's permit file as loaded on September 15, 2026.