Caleb Tzilkowski

• Integrity of Benthic Macroinvertebrate Communities in Allegheny Portage Railroad National Historic Site and Johnstown Flood National Memorial
• Level I Water Quality Inventory and Aquatic Biological Assessment of the Allegheny Portage Railroad National Historic Site and the Johnstown Flood National Memorial
• Wadeable Stream Monitoring in Allegheny Portage Railroad National Historic Site, Delaware Water Gap National Recreation Area, Johnstown Flood National Memorial, and Upper Delaware Scenic and Recreational River
• Wadeable Stream Monitoring in the Eastern Rivers and Mountains Network 2009?2010 Summary Report