Engineering Services

ERS retains licensed professionals, including, environmental, process, chemical, civil, and geotechnical engineers to design and implement various engineering applications for a variety of clients, including real estate developers, municipalities, ports, gasoline and diesel stations, former/existing power plants, industrial facilities, and mine sites.

Water and Wastewater Treatment Design:

• Industrial, Municipal, Dewatered Groundwater, Surface
  Water, Acid Rock Drainage, Mine Process Water, and Ultrapure
  Boiler Water
• Contaminants Include TSS, TDS, Metals(Fe, Al, Mn, Mo, Cu,
  Cd, Ag, Cr, Ni, Hg, Pb, Sb, Zn), Metalloids (As, Se), Anions
  (Sulfate, Chloride), TSS, TDS, Silica, Turbidity, Hardness,
  Nutrients (Nitrate, Nitrite, Ammonia/Ammonium, and Phosphate),
  BOD, COD, Oil/Grease
• Major Technologies: Physical (Settling/Clarification, Depth
  Filtration, Membrane Filtration, Solids Stabilization),
  Chemical (Oxidation, Precipitation, pH/Eh Control, Coagulation,
  Flocculation, Ion Exchange, Electric Deionization, Chemical
  Softening), and Biological (Activated Sludge, Aerated Lagoon,
  Disinfection, De-chlorination)
• Process Engineering/Feasibility Studies, Laboratory and
  Numerical Simulations, Pilot Testing, Detailed Design, PFD and
  P&ID, AutoCAD Drafting

Soil and Groundwater Remediation:

• In Situ and Ex Situ Contamination Removal, Destruction, and
  Confinement
• Technologies Practiced: Soil Excavation, Soil Vapor
  Extraction, Air/Ozone Sparging, “Pump and Treat” with Carbon
  Adsorption, In Situ Oxidation, Reductive De-chlorination,
  Monitored Natural Attenuation, Contaminated Soil Encapsulation,
  Wetland Sulfate Reduction
• Contaminants: petroleum products (Gasoline, Diesel,
  Hydraulic Oil), VOC, SVOC, Chlorinated Solvents (PCE, TCE),
  PCB, TOC
• Alternative Evaluation, Field Pilot Testing, Detailed
  Design, Equipment Procurement, Construction and Installation,
  Operation and Maintenance

Water Resources Investigation and Water Supply:

• General Geology and Hydrogeology Evaluation/Water Resource
  Planning
• Well Design, Installation, and Construction Management
• Hydrogeological Characterization/Pumping Tests, Yield
  Analysis, Water Quality Monitoring, Modeling, Aquifer Storage
  and Recovery
• Well Pump Selection and Sizing, Hydraulic Analysis, and
  Piping

Other Engineering Services Practiced:

• Stream and Lake Erosion Control and Storm Water Catch Basin
  Design
• Geotechnical and Landfill Design
• Dredging and Sediment Management
• Mine Site Reclamation