Wastewater
LAN provides wastewater engineering services, including collection, treatment, rehabilitation, and regulatory compliance solutions that ensure reliable, efficient, and sustainable systems for municipalities and utility districts.
Collection System
LAN delivers collection system services, specializing in the planning, design, rehabilitation, and construction management of wastewater collection infrastructure for municipalities, utilities, and public agencies.
Services
Bypass Pumping and Re-routing
Service Area Delineation
Environmental and Geotechnical Engineering
Survey and Right-of-Way Acquisition
Construction Phase Services and Construction Oversight
Trenchless Technologies and Tunneling
Cathodic Protection Design and Maintenance
Sanitary Sewer Evaluation Studies
Infiltration and Inflow (I&I) Data Assessment
Overflow Reduction and Wastewater Collection
Preliminary Engineering
Route Evaluations and Analysis
Hydraulic Modeling and System Modeling
Condition Assessment and Prioritization
Pipeline and Sanitary Sewer Rehabilitation
Project Gallery
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![Aerial view of a construction site with multiple excavators and construction equipment working on a road project surrounded by trees and open land.]()
Sycamore Creek Relief Interceptor – City of Fort Worth
LAN designed and managed phased construction of a 66-inch parallel relief interceptor to increase capacity, reduce SSOs, and enable future rehabilitation of the existing system, utilizing innovative tunneling and corrosion-resistant materials.
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![Aerial view of a highway construction site showing large blue pipes on the ground, some assembled into a pipeline, with ongoing construction work and a highway overpass in the background.]()
2021 CMOM Packages for SSORP Package 6 – San Antonio Water System
LAN evaluated and recommended rehabilitation for 51 sewer mains (13,800 LF of 8- to 18-inch lines), including manhole assessment, utility coordination, and environmental review.
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![Construction workers installing large underground pipeline with heavy machinery, dirt, and clear sky.]()
48-inch & 54-inch Interceptor Rehabilitation Program – City of Battle Creek
LAN assessed and prioritized improvements for large diameter interceptors, developing a capital strategy and implementing phased rehabilitation based on condition and budget.
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Cottonmouth Creek Segment C – Brookfield Residential
LAN designed 7,150 LF of 18-inch interceptor with trenchless crossings, environmental mitigation, and capacity evaluation for system expansion.
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Sanitary Sewer Evaluation & Rehabilitation Program – Houston, TX
LAN served as Program Manager for the Clear Lake City Water Authority’s 1.1 million LF sanitary sewer system, developing GIS-based inventory, phased rehabilitation, and achieving a 16% reduction in WWTP influent.
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Lift Station & Treatment
LAN delivers comprehensive engineering services for lift station and wastewater treatment projects, including condition assessment, alternative analysis, design, construction oversight, and rehabilitation.
Services
Lift station consolidation and elimination
Force main and gravity sewer design
Odor and noise control solutions
Condition assessment and prioritization
Hydraulic modeling and master planning
Preliminary and final engineering design
Lift station rehabilitation and replacement
Flood resilience and elevation improvements
Electrical, SCADA, and backup power systems
Construction phase services and commissioning
Project Gallery
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![An aerial view of road construction with excavators, trucks, and construction equipment working on a dirt road surrounded by trees.]()
WMARSS Transfer Lift Station & Force Main – City of Waco
LAN designed a new 104-MGD transfer lift station and 14,000 LF of 54-inch force main, resolving system bottlenecks and saving $20M in capital costs for the City of Waco.
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![Construction site with large blue pipes laid along dirt roads and adjacent to a highway overpass, with cleared land and patches of trees.]()
Multi-Lift Station Evaluation & Rehabilitation – City of Galveston
LAN evaluated and prioritized rehabilitation for 47 lift stations, developing phased improvements after Hurricane Ike to restore full operational status.
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![Construction workers inspecting a large underground pipeline in a trench, with heavy machinery and excavation equipment on dirt ground under a partly cloudy sky.]()
Conroe Central Wastewater Treatment Plant – City of Conroe
LAN performed a complete system assessment and treatment process evaluation, identifying opportunities to enhance operational efficiency and regulatory compliance.
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Airport Wastewater Treatment Plant Expansion & Improvements – City of Galveston
LAN performed a comprehensive evaluation of 47 lift stations associated with the City of Galveston’s wastewater collection and treatment system, many of which suffered significant damage from Hurricane Ike.
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Conroe Southwest Regional Wastewater Treatment Plant – City of Conroe
LAN provided comprehensive engineering services for significant upgrades to the plant, originally rated at 10 million gallons per day (MGD).
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Modeling & Master Planning
LAN delivers Modeling & Master Planning services, leveraging advanced hydrologic, hydraulic, and water quality modeling to help communities plan for growth, manage infrastructure, and address complex water, wastewater, and stormwater challenges.
Services
Regulatory compliance and permitting support
Best Management Practices (BMP) and Low Impact Development (LID) modeling
Flood risk and resiliency assessments
Impact fee analysis and rate studies
Condition assessment and asset management
Population and demand projections
GIS and data management for infrastructure planning
Hydraulic and hydrologic modeling (H&H)
Water and wastewater system master planning
Stormwater and drainage master planning
Capital Improvement Plan (CIP) development and prioritization
Project Gallery
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![Aerial view of a construction site with large yellow excavators installing a pipeline through a cleared area surrounded by trees.]()
Water/ Wastewater Master Planning – City of Schertz Water
LAN delivered integrated water and wastewater master plans, system modeling, and impact fee assessments to support infrastructure investment and growth.
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![Aerial view of a highway construction site with blue pipes and dirt roads, near an overpass and a parking lot in a suburban area.]()
Easton Park Water/Wastewater Master Planning & Major Utility Design – Brookfield Residential
LAN provided master planning and hydraulic modeling for a 1,500-acre master planned community, ensuring infrastructure met both development and citywide needs.
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![Construction workers in safety gear working on laying a large underground pipeline at a construction site with excavators and heavy machinery under a partly cloudy sky.]()
McGary Creek Sewershed Modeling & Lift Station Expansion – City of Huntsville
LAN updated and calibrated the city’s wastewater model to support capacity assessments, future growth, and lift station expansion.
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Water/ Wastewater Master Planning – City of Corpus Christi
LAN provided comprehensive modeling, master planning, and CIP development for water, wastewater, and stormwater systems, including impact fee studies and regulatory compliance.
Related Links
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