Clean Water Act discharge permit · NPDES INRA18557

COSTCO WAREHOUSE MERRILLVILLE, Merrillville, IN: NPDES INRA18557 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

COSTCO WAREHOUSE MERRILLVILLE, held by Lawrence Dziurdzik, holds NPDES permit INRA18557. EPA’s file records it issued July 21, 2026 and expiring July 20, 2031.

COSTCO WAREHOUSE MERRILLVILLE, Merrillville, Indiana: Coverage under a general permit INRA18557, held by Lawrence Dziurdzik; Construction stormwater; Effective; issued July 21, 2026, term to July 20, 2031, by State.

Indiana holds 7,813 Construction stormwater coverages of this permit type in EPA’s file; 7,539 were issued before INRA18557. Lawrence Dziurdzik holds 2 permits in Indiana.

Other permits held by Lawrence Dziurdzik

COSTCO WAREHOUSE MISHAWAKA, Granger: INRA18685, issued August 10, 2026

Coverages issued nearest INRA18557

July 20, 2026: DETAMORE - CP 109TH & I65 SWPPP, Crown Point, INRA18549, held by Cory Detamore
July 20, 2026: PRINCETON COMMUNITY HIGH SCHOOL, Princeton, INRA18550, held by Lee McConnell
July 20, 2026: PRINCETON COMMUNITY HIGH SCHOOL, Princeton, INRA18551, held by Lee McConnell
July 20, 2026: TRANSFORMATION MINISTRIES, South Bend, INRA18552, held by Kory Lantz
July 20, 2026: SULLIVAN COUNTY POWER, Sullivan, INRA18555, held by Dave Grubb, Jr.
July 21, 2026: 6 GREENFIELD PRESSURE TEST, Greenfield, INRA18558, held by Kevin Preece
July 21, 2026: DNA FAMILY FARMS, Portland, INRA18559, held by Drew Beiswanger
July 21, 2026: MICHAEL WYNKOOP POND, Thorntown, INRA18560, held by Michael Wynkoop
July 21, 2026: IN DOT DES 2501132 US 31 DEMOLITION, Peru, INRA18561, held by Jason Spreen
July 21, 2026: CITY OF COLUMBUS ANIMAL CARE FACILITY, Columbus, INRA18562, held by Brian Payne

COSTCO WAREHOUSE MERRILLVILLE among its neighbors

EPA’s permit file holds 37 discharge permits in the City of Merrillville-Turkey Creek subwatershed (HUC 040400010505), INRA18557 among them. Its county holds 204, 18 of them major permits; INRA18557 is a minor permit.

Other permits in the City of Merrillville-Turkey Creek subwatershed (HUC 040400010505)

1213 LINCOLN HIGHWAY, Merrillville: INRA12960, minor permit, permit term to December 11, 2028
69TH AVE & MISSISSIPPI STREET DES. 2101130 6414, Merrillville: INRA17841, minor permit, permit term to March 30, 2031
ALLIED TUBE AND CONDUIT CORPORATION, Merrillville: INRM02940, minor permit, discharging to Turkey Creek, permit term to March 23, 2028
ATKORE - PHASE 3, Merrillville: INRA18482, minor permit, permit term to July 7, 2031
COLORADO STREET OVER CANADIAN NATIONAL RAILROAD, Hobart: INRA10786, minor permit, permit term to October 25, 2027
CONCRETE RECYCLING & MATERIAL SALES LLC, Hobart: INRM03182, minor permit, permit term to May 11, 2030
DAIFUKU BUILDING EXPANSION, Hobart: INRA14380, minor permit, permit term to August 12, 2029
DRIVE & SHINE MERRILLVILLE, Merrillville: INRA16360, minor permit, permit term to July 1, 2030
FIELER ELEMENTARY, Merrillville: INRA12449, minor permit, permit term to August 27, 2028
FRANKLIN ESTATES, Merrillville: INRA12740, minor permit, permit term to December 17, 2028

What the register holds for COSTCO WAREHOUSE MERRILLVILLE: its NPDES ID, its permit type and status, its dates, its address in Merrillville, Indiana. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES INRA18557.

Identity

Facility as filed	COSTCO WAREHOUSE MERRILLVILLE
Permittee as filed	Lawrence Dziurdzik
NPDES ID	INRA18557
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	July 21, 2026
Expiration date	July 20, 2031
Issuing agency	State
Address	Merrillville, IN 46410
Subwatershed	City of Merrillville-Turkey Creek (HUC 040400010505)
Other EPA IDs (FRS)	RCRA handler INR000103762

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES INRA18557.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES INRA18557.

Inspections

EPA’s inspection file holds no inspection for NPDES INRA18557.

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 INRA18557.

Watch this permit

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Nearby on the register

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

The COSTCO WAREHOUSE MERRILLVILLE storm water construction permit (INRA18557) is one of 42 such permits on EPA's NPDES register in Lake County, and 0.0% of those 42 permits have a violation on file. The permit also sits among 37 NPDES permits in the City of Merrillville-Turkey Creek subwatershed, and 97.6% of the 42 Lake County storm water construction permits were issued before it.