EPA Air · inspections by state, industry and year

Primary metal manufacturing (NAICS 3313): inspections in Delaware, 2025

• 5Inspections

A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source. Each row is one inspection recorded during 2025 at a Delaware source whose primary industry code is NAICS 3313. A facility filing more than one industry code is counted under the first one on its record.

Other industries in Delaware, 2025

• Utilities (NAICS 2211) 78
• Petroleum and coal products manufacturing (NAICS 3241) 46
• Chemical manufacturing (NAICS 3251) 25
• Chemical manufacturing (NAICS 3256) 25
• Waste management and remediation (NAICS 5622) 19
• Plastics and rubber products manufacturing (NAICS 3261) 17
• Hospitals (NAICS 6221) 16
• Chemical manufacturing (NAICS 3253) 14
• Food manufacturing (NAICS 3116) 12
• Professional, scientific and technical services (NAICS 5417) 12
• Chemical manufacturing (NAICS 3254) 11
• Pipeline transportation (NAICS 4862) 11
• Textile mills (NAICS 3133) 9
• Waste management and remediation (NAICS 5629) 8
• Primary metal manufacturing (NAICS 3312) 7
• Food manufacturing (NAICS 3111) 7
• Real estate (NAICS 5311) 6
• Utilities (NAICS 2213) 6
• Educational services (NAICS 6113) 5
• Chemical manufacturing (NAICS 3252) 5
• Personal and laundry services (NAICS 8122) 4
• Food manufacturing (NAICS 3114) 4
• Data processing and hosting (NAICS 5182) 3
• Agriculture and forestry support (NAICS 1151) 3
• Merchant wholesalers, nondurable goods (NAICS 4247) 3
• Accommodation (NAICS 7211) 3
• Fabricated metal product manufacturing (NAICS 3328) 3
• Rail transportation (NAICS 4821) 3

Air-emissions inspections recorded in Delaware, 2025

Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.