Whittlemore & Haigh Engineering Inc. services

Roadway and Parking Lot Design and Investigation. Embankment Stabilization. Storm Water Analysis and Design. Erosion and Sediment Control. Third Party Review of Development Plans and PADEP Permits. NPDES MS4 Municipal Storm Water. Hydraulic Modeling - HECRAS, HEC2, Hydraflow. Hydrology Modeling - HydroCAD. PADEP General and Joint Permits. Box Culvert Design. Retaining Wall Design. Detention Basin Permeability and Design (Gulph Permeability Testing). Foundation Design and Recommendations. Design of Infiltration BMPS. Design Subsurface Storage Basins.

Phase I/II Environmental Site Assessments. Soil and Groundwater Characterization. PA Act 1989-32 (Chapter 245) Remediation. PA Act 2 (Chapter 250) Remediation. Design of Remedial Systems - Pump and Treat, In-Situ/Ex-Situ Bioremediation, Natural Attenuation, Soil Gas Vapor Extraction. Public Water Supply Permitting. NPDES General, Individual and Joint Water/Wastewater Permitting. SPCC, PPC, SPR, EA and SWPP Plans. Residual Waste Reporting. SARA Title III Tier II Reporting. Facility Wide, Natural Minor and Synthetic Minor Air Quality Permitting. Source Permitting/Testing. Watershed Modeling.