Clean Water Act discharge permit · NPDES IN0053546

SOUTHWESTERN ELEM & HIGH SCHOOLS, Shelbyville, IN: NPDES IN0053546 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
11Pollutants under a numeric limit
8Pollutants with an effluent exceedance

SOUTHWESTERN ELEM & HIGH SCHOOLS, held by SOUTHWESTERN ELEMENTARY/HIGH SCHOOL, holds NPDES permit IN0053546, which discharges to Flatrock R/Lewis Crk/E Fk Slash Crk. EPA’s file records it issued June 29, 2020 and expiring August 31, 2025. 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	SOUTHWESTERN ELEM & HIGH SCHOOLS
Permittee as filed	SOUTHWESTERN ELEMENTARY/HIGH SCHOOL
NPDES ID	IN0053546
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	June 29, 2020
Expiration date	August 31, 2025
Issuing agency	IDEM
Address	Shelbyville, IN 46176
Receiving water	FLATROCK R/LEWIS CRK/E FK SLASH CRK
Subwatershed	Slash Ditch (HUC 051202050502)

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

Effluent limits and exceedances

12Pollutants on file
11Under a numeric limit
11With a violation of any kind
8With 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]	8	118	112	February 28, 2025	484% over the limit
E. coli, colony forming units [CFU]	3	72	71	September 30, 2014	65,989% over the limit
Chlorine, total residual	4	40	34	June 30, 2019	167% over the limit
Solids, suspended percent removal	1	27	27	June 30, 2025	471% over the limit
Solids, total suspended	4	49	22	October 31, 2012	9,389% over the limit
BOD, carbonaceous [5 day, 20 C]	4	30	2	January 31, 2006	88% over the limit
pH	2	15	2	June 30, 2015
BOD, carb-5 day, 20 deg C, percent removal	1	2	2	October 31, 2016	76% over the limit
Flow, in conduit or thru treatment plant	1	13	0
Flow, wastewater by-passing trtmnt plant	0	5	0
Number of Events	2	2	0
Flow, total	1	0	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 IN0053546.

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 IN0053546 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES IN0053546 for Southwestern Elem & High Schools in Shelbyville, IN, a minor discharger whose permit is administratively continued. The page lists 11 pollutants under a numeric limit and 8 pollutants with an effluent exceedance, and it cites a receiving water of Flatrock R/Lewis Crk/E Fk Slash Crk in the Slash Ditch subwatershed (HUC 051202050502).