Wastewater Facilities Engineering - Lennon, Smith, Souleret Engineering, Inc.

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

Recent Project Highlights

3 Rivers Wet Weather, Inc. (3RWW)-Program Manager Contract

LSSE is one of three lead firms on the 3 Rivers Wet Weather Program Management (PM) Team on this multi-year contract. Since 2003, LSSE’s involvement in the PM contract has included a diverse range of services including interpretation of municipal obligations under federal, state, and local regulatory orders and preparation of various guidance templates for […]

Consent Order/NPDES Compliance & Long-Term Control Plan West Newton Borough, Westmoreland County, PA

LSSE was retained after repeated attempts by prior engineers failed to provide an LTCP compliance program that was acceptable to PADEP. LSSE first assisted the Borough in negotiating an acceptable Consent Order including a reduction in assessed penalties. LSSE followed with a work plan for CSO Policy/NPDES Compliance including documentation and implementation of the nine […]

North Sewickley Phase II Sewage Facilities Collection System

LSSE provided design and construction phase services for the installation of approximately 145,000 LF of sanitary collection sewers, 7 new lift stations, 1 pump station upgrade/ modification, installation of 884 manholes, 236 grinder pumps, 76,000 LF of force main with connection to 2 regional wastewater treatment facilities (Beaver Falls and Ellwood City) designed to provide […]