www.esiltd.com Excellence, Service, Integrity

Ever changing permitting and compliance requirements place even greater demands on our most valued resources. Finding cost effective, innovative solutions can make the difference in success. Increasingly complex issues in planning, design and construction require utilizing the latest innovations while maintaining reliable, proven methods. Whether it is planning and modeling, systems evaluations, maintenance, retrofitting or rehabilitation, we look for an effective combination of solutions. Changing technologies need to be applied with practical insight so that goals and business objectives are met while protecting the public–s interest in these valuable resources. Our projects include a broad range of water resource needs. From water main system design or cathodic evaluations; to wastewater collection, systems planning, regulatory compliance and beyond, we are here to meet and exceed your expectations. We provide the planning, design and construction engineering for a broad range of water supply, distribution and wastewater reclamation needs, as well as funding assistance.
Representative Services:
– Distribution Modeling
– Network Modeling & Master Planning
– System Evaluations
– Demand Forecasting
– Hydraulic Models and Studies
– Facility Review and Assessment
– Sewer and Water Rehabilitation
– Waste Water Systems
– Potable Water Design
– Sanitary Sewer Design
– Regulatory Compliance Assistance
– Permitting
Project Involvement:

– I/I and SSES
– Modeling
– Planning
– Design
– Construction Engineering
Water/Wastewater Projects:
AQUA Evaluations AQUA Evaluations
Elizabeth Water and Wastewater Capacity Studies Elizabeth Water & Wastewater Studies
Charleston Water Line Charleston Water Line
Elgin Water Main Improvements Elgin Water Main Improvements



Naperville (630) 420-1700

Chicago (312) 277-1700

Charleston (217) 348-1900


Crown Point (219) 281-2818


Bellevue (425) 559-9877