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Facility Details: Grain Processing Corporation

Street Photo
Street Map 		Aerial Photo
Aerial Photo
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  • Name/Address:
  • Grain Processing Corporation
  • 1600 OREGON STREET
  • Muscatine, IA 52761
  • Owner:
  • State Facility ID: 310637862
  • Federal Facility ID: 110017404548
  • Location Supplement:
  • Location Comment: 1600 Oregan Street
  • Latitude: 41.40201
  • Longitude: -91.06290
  • Location Accuracy: 20 m (Good)
  • Reference Point: PLANT ENTRANCE (GENERAL)
  • Collection Method: INTERPOLATION-PHOTO
  • Last Updated: 2/22/2026 3:27 AM
  • Collected By: mark.las

Aliases
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Program Name Start Date End Date
Spills Gpc Muscatine 02/25/2025
Spills Grain Processing Corp 05/16/2019
Spills Gpc 01/14/2011
NPDES Wastewater Treatment Operating Permit Grain Processing Corp. 01/01/0001

Program Information
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Emergency Response - Spills

Spill NumberAt Facility?Reported DateStatusResponsible PartyModeLink To Details

Wastewater - NPDES Wastewater Treatment Operating Permit

EPA IDState IDPermit TypeClassPreTreatmentIssue DateExpiration DateStatusConstruction Permits
00034417048101INDUSTRIALMAJORNo 11/1/2022 10/31/2027ACTIVETo Site


Industrial Codes
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No SIC Information for this site.
No NAICS Information for this site.

Compliance Links
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Enforcement Action
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Features
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NPDES Wastewater Treatment Operating Permit Feature List

Name Type Accuracy Supplemental Location
OF-6 Outfall 20 m (Good) PROCESS WATER FOLLOWING TREATMENT BT AN ANAEROBIC/
OF-5 Outfall 20 m (Good) PROCESS WATER FROM THE STARCH PLANT WATER SOFTENER
OF-4 Outfall 20 m (Good) PROCESS WATERS FROM CORN STEEPING AND STARCH REFIN
OF-1 Outfall 20 m (Good) PROCESS WATERS FROM CORN SWEETNER PRODUCTION UNIT
OF-2 Outfall 20 m (Good) PROCESS WATERS FROM ETHYL ALCOHOL PRODUCTION FEED
OF-3 Outfall 20 m (Good) PROCESS WATERS FROM ETHYL ALCOHOL PRODUCTION UNITS
FD-1 Wastewater Treatment 20 m (Good)
OF-107 Outfall 0 m (Good)
OF-7 Outfall 0 m (Good)
OF-801 Outfall 0 m (Good)