Internships › Environmental Science and Engineering › Pennsylvania

Environmental Science and Engineering internships in Pennsylvania

27 open student roles in environmental science and engineering in Pennsylvania, from internships to co-ops and research. That includes 6 co-ops and 1 part-time role. 33% list pay or say they are paid. The most common start terms are Summer 2027 and Fall 2027. Employers with the most openings: Marathon Petroleum, EQT Corporation, CDM Smith, Heidelberg Materials and Oshkosh.

• Zurn Elkay Water Solutions New
  Environmental Health and Safety Intern (Summer 2027)
  Pittsburgh, PA +13 · Summer 2027
  Open posting
• Verdantas New
  Summer 2027 Environmental Engineer Intern
  Wilkes Barre PA · Summer 2027
  Open posting
• Howmet Aerospace New
  Intern – Corporate Environmental and Sustainability (EHS)
  Pittsburgh, PA
  Open posting
• TRC Companies New
  Environmental Intern
  Exton, Pennsylvania +32 · Summer 2027 · part-time · Paid
  Open posting
• EQT Corporation New
  Environmental Intern
  Williamsport, PA
  Open posting
• C&S Wholesale Grocers
  Operations Safety Intern- Summer 2027
  York, PA (GDC) 1222 +6 · Summer 2027
  Open posting
• EQT Corporation
  Geology Intern
  Canonsburg, PA
  Open posting
• EQT Corporation
  Process Safety Intern
  Canonsburg, PA
  Open posting
• Oshkosh
  Manufacturing Safety Intern
  Bedford, Pennsylvania, United States
  Open posting
• Oshkosh
  Environmental Intern
  McConnellsburg, Pennsylvania, United States
  Open posting
• Marathon Petroleum
  Intern/Co-op - HES&S Environmental (Summer 2027)
  Canonsburg, Pennsylvania +18 · Summer 2027 · co-op · $24.09 per hour
  Open posting
• Marathon Petroleum
  Intern/Co-op - HES&S Safety and Industrial Hygiene (Summer 2027)
  Canonsburg, Pennsylvania +21 · Summer 2027 · co-op · $24.09 per hour
  Open posting
• Marathon Petroleum
  Intern/Co-op - HES&S Safety and Industrial Hygiene (Fall 2027)
  Canonsburg, Pennsylvania +21 · Fall 2027 · co-op · $24.09 per hour
  Open posting
• Marathon Petroleum
  Intern/Co-op - HES&S Environmental (Spring 2027)
  Canonsburg, Pennsylvania +18 · Spring 2027 · co-op · $24.09 per hour
  Open posting
• Marathon Petroleum
  Intern/Co-op - HES&S Safety and Industrial Hygiene (Spring 2027)
  Canonsburg, Pennsylvania +21 · Spring 2027 · co-op · $24.09 per hour
  Open posting
• Marathon Petroleum
  Intern/Co-op - HES&S Environmental (Fall 2027)
  Canonsburg, Pennsylvania +18 · Fall 2027 · co-op · $24.09 per hour
  Open posting
• GHD
  Environmental Engineering Intern
  HARRISBURG, PA +4
  Open posting
• CDM Smith
  Environmental Engineering Intern - Water Services (Summer 2027!)
  Lancaster, Pennsylvania +18 · Summer 2027
  Open posting
• Merck
  2027 Future Talent Program - Environmental Health and Safety Process and Site Support - Intern
  USA - Pennsylvania - West Point +2 · $39,908 - $111,111
  Open posting
• CDM Smith
  Environmental Engineering Intern (Summer 2027!)
  Wayne, Pennsylvania +12 · Summer 2027
  Open posting
• PricewaterhouseCoopers (PwC)
  Sustainability CP&I - Intern - Summer 2027
  PA-Philadelphia +8 · Summer 2027 · $29.25 - $48.00
  Open posting
• Textron
  2027 Intern- EHS - Williamsport, PA
  Williamsport, Pennsylvania
  Open posting
• HF Sinclair New
  Intern Safety
  Petrolia, PA
  Open posting
• Heidelberg Materials
  Environmental Intern
  Flourtown, PA +5
  Open posting
• Heidelberg Materials
  Safety Intern
  Nazareth, PA +1
  Open posting
• First Quality
  EHS Intern
  McElhattan, PA +1
  Open posting
• General Dynamics
  Intern, Prod Support- EHS - Environmental Health Safety
  Scranton, PA +1
  Open posting

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Updated September 26, 2026. Listings are collected from public job boards several times a day; always check the posting on the employer's site before applying.