Clean Water Act discharge permit · NPDES IN0042021

ELMWOOD MHP, Chesterton, IN: NPDES IN0042021 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
11Pollutants under a numeric limit
9Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

ELMWOOD MHP, held by ELMWOOD MOBILE HOME PARK, holds NPDES permit IN0042021, which discharges to Lm/Calumet/Lt Calumet/Salt/Damon Rn. EPA’s file records it issued November 30, 2007 and expiring December 31, 2012.

ELMWOOD MHP, Chesterton, Indiana: Individual permit IN0042021, held by ELMWOOD MOBILE HOME PARK; Administratively continued (past its expiration date and still in force until reissued); issued November 30, 2007, term to December 31, 2012, by IDEM; discharges to LM/CALUMET/LT CALUMET/SALT/DAMON RN.

Nitrogen, ammonia total [as N]: 16 limits, 119 violations of any kind, 71 effluent exceedances, latest June 30, 2016, largest 422% over the limit.
Solids, total suspended: 8 limits, 89 violations of any kind, 41 effluent exceedances, latest May 31, 2010, largest 447% over the limit.
Chlorine, total residual: 6 limits, 26 violations of any kind, 16 effluent exceedances, latest May 31, 2012, largest 1,100% over the limit.
Oxygen, dissolved [DO]: 2 limits, 26 violations of any kind, 12 effluent exceedances, latest July 31, 2008, largest 100% over the limit.
Phosphorus, total percent removal: 1 limit, 22 violations of any kind, 9 effluent exceedances, latest February 29, 2008, largest 185% over the limit.
BOD, carbonaceous [5 day, 20 C]: 8 limits, 48 violations of any kind, 8 effluent exceedances, latest March 31, 2005, largest 115% over the limit.
E. coli, colony forming units [CFU]: 2 limits, 5 violations of any kind, 5 effluent exceedances, latest August 31, 2016, largest 133% over the limit.
Phosphorus, total [as P]: 1 limit, 15 violations of any kind, 2 effluent exceedances, latest July 31, 2011, largest 30% over the limit.
pH: 2 limits, 25 violations of any kind, 1 effluent exceedance, latest June 30, 2002.
Flow, in conduit or thru treatment plant: 2 limits, 23 violations of any kind, 0 effluent exceedances.
Flow, wastewater by-passing trtmnt plant: 0 limits, 8 violations of any kind, 0 effluent exceedances.
Flow, total: 1 limit, 4 violations of any kind, 0 effluent exceedances.
Coliform, fecal general: 0 limits, 4 violations of any kind, 0 effluent exceedances.

ELMWOOD MHP among its neighbors

EPA’s permit file holds 61 discharge permits in the Squirrel Creek-Salt Creek subwatershed (HUC 040400010303), IN0042021 among them. Its county holds 88, 7 of them major permits; IN0042021 is a minor permit.

Other permits in the Squirrel Creek-Salt Creek subwatershed (HUC 040400010303)

1100 WOODS, Chesterton: INRA08996, minor permit, permit term to January 13, 2027
34W 900N COBBLE RESIDENCE, Chesterton: INRA18296, minor permit, permit term to June 4, 2031
BABCOCK 345 KV SYNCHRONOUS CONDENSER PROJECT, Valparaiso: INRA17303, minor permit, permit term to December 11, 2030
BABCOCK SUBSTATION - REGRADING AND RESURFACING 2025, Valparaiso: INRA16178, minor permit, permit term to June 4, 2030
BABCOCK TO STILLWELL FIBER, Valparaiso: INRA18588, minor permit, permit term to July 23, 2031
BENNETT STORAGE, Valparaiso: INRA08700, minor permit, permit term to November 9, 2026
BJ'S WHOLESALE CLUB & FUEL - PORTAGE, Portage: INRA17674, minor permit, permit term to March 1, 2031
BURNS HARBOR TACO BELL, Burns Harbor: INRA14478, minor permit, permit term to August 19, 2029
CASEY'S SOUTH HAVEN, Valparaiso: INRA10330, minor permit, permit term to August 15, 2027
CEDAR CREEK UNITS 4 & 5, Portage: INRA09971, minor permit, permit term to July 13, 2027

Identity

Facility as filed	ELMWOOD MHP
Permittee as filed	ELMWOOD MOBILE HOME PARK
NPDES ID	IN0042021
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	November 30, 2007
Expiration date	December 31, 2012
Issuing agency	IDEM
Address	Chesterton, IN 46385
Receiving water	LM/CALUMET/LT CALUMET/SALT/DAMON RN
Receiving water impaired	303(D) Listed
Subwatershed	Squirrel Creek-Salt Creek (HUC 040400010303)

Effluent limits and exceedances

13Pollutants on file
11Under a numeric limit
13With a violation of any kind
9With 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]	16	119	71	June 30, 2016	422% over the limit
Solids, total suspended	8	89	41	May 31, 2010	447% over the limit
Chlorine, total residual	6	26	16	May 31, 2012	1,100% over the limit
Oxygen, dissolved [DO]	2	26	12	July 31, 2008	100% over the limit
Phosphorus, total percent removal	1	22	9	February 29, 2008	185% over the limit
BOD, carbonaceous [5 day, 20 C]	8	48	8	March 31, 2005	115% over the limit
E. coli, colony forming units [CFU]	2	5	5	August 31, 2016	133% over the limit
Phosphorus, total [as P]	1	15	2	July 31, 2011	30% over the limit
pH	2	25	1	June 30, 2002
Flow, in conduit or thru treatment plant	2	23	0
Flow, wastewater by-passing trtmnt plant	0	8	0
Flow, total	1	4	0
Coliform, fecal general	0	4	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0042021.

Inspections

EPA’s inspection file holds no inspection for NPDES IN0042021.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES IN0042021.

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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 IN0042021, held by ELMWOOD MOBILE HOME PARK for ELMWOOD MHP in Chesterton, IN, and lists its status as administratively continued with a permit status of Minor and a discharger class of 11. The page reports 13 pollutants on file, 11 pollutants under a numeric limit, and 9 pollutants with an effluent exceedance.