Wastewater Facilities Engineering

Wastewater Facilities Engineering

LSSE provides wastewater facilities planning, design, bid document preparation and construction phase for new systems, rehabilitation of existing systems, as well as unique source reduction (inflow/infiltration programs). Recent experience includes planning through construction phase services for over 162 miles of sanitary/combined sewers and 10 wastewater treatment plants. LSSE has also maintained a prominent role in one of the nation’s largest and most complex wet weather control programs, the Allegheny County (ALCOSAN) wet weather control program mandated under a Federal EPA Consent Decree, which has an estimated cost of over $ 3 billion. No other regional, western Pennsylvania firm had equivalent status in this multi-phase regional program, which involved eight teams lead by one of the nation’s Engineering News-Record (ENR) Top–10 Wastewater Engineering firms.

Facilities Planning, Design, Construction Phase, and Surveying Services:

• Separate Sanitary Sewers
• SSO Elimination
• Combined Sewer Separation
• CSO Mitigation
• Pump Stations
• Small Diameter Pressure Sewers
• Wastewater Treatment Process
  • Grit Removal
  • Odor Control
  • Biological/Chemical Treatment
  • Clarification
  • Disinfection
  • Solids Management/Disposal
• Flow Equalization Facilities

SPECIALIZED STUDIES/INVESTIGATIONS:

• Community and Multi-Jurisdictional Wastewater Facilities Planning (PA Act 537), Design and Permitting
• Consent Order and Sewage Facilities Corrective Action Plans
• Operation and Maintenance Programs
• CSO/SSO Characterization Studies/Evaluations
• Wastewater Process Optimization
• Hydraulic Re-Rating Studies
• Industrial Pretreatment
• Rate Studies
• PA Act 57 Tap Fee Analysis
• Developer Reviews
• Annual/Capital Budgets
• Permit Renewals
• Chapter 94 Reports
• Vulnerability Assessments
• Grant Assistance/Administration
• GIS – Asset Management
• Infiltration/Inflow (I/I) and Source Reduction Studies
  • Flow Monitoring and QA/QC Analysis
  • Flow Isolation Studies
  • Present Worth-based Cost-effectiveness Analysis
  • Design
  • Permitting and Implementation
  • Post Project Certification
  • Hydraulic and Hydrologic Modeling/Analysis
  • Partial Parallel Replacement to eliminate SSO’s and achieve significant RD I/I and GWI Flow Reduction
  • RTK Analytic Parameters to be put into SWMM Models to assess Pipe Capacity Analysis