
Services Provided
Timely Response, Innovative Solutions, Sustainable Design
PEC Water delivers water resources and wet utility engineering across the full project lifecycle — from early planning and hydraulic analysis through final design and construction support. We serve transportation and utility agencies throughout California, Oregon, and Washington, bringing senior-level expertise and a builder's mindset to every project.
Water Resources
Water infrastructure doesn't exist in isolation. It sits at the intersection of roads, communities, ecosystems, and climate. We bring a systems-level perspective to every engagement, integrating hydraulic analysis, stormwater management, and environmental stewardship into solutions that perform across project scales and regulatory environments.
Stormwater and Drainage
Drainage engineering for roadways, highways, rail, and tunnels.
Prepare fish passage designs, hydraulic reports, LOMR/CLOMR, No-Rise Certificates, and scour analyses.

Water Quality
Stormwater BMP design and inspection, perform QSP/QSD services, geomorphology analysis, SWPPP. Assist with the NPDES permit and 401/404 permits

Floodway and Floodplain Analysis
HEC-RAS 1D/2D coupled modeling, InfoWorks ICM, floodway/floodplain analysis, LOMR and CLOMR packages, and Flood Hazard Mapping for transportation agencies and municipal clients across the West Coast.

Green Infrastructure and Stormwater Quality
Low-impact development and BMP design encompasses regional stormwater capture, bioretention, permeable pavement, and trash capture systems that reduce runoff and improve water quality.

Climate Resiliency & Adaptatation
Climate vulnerability assessments evaluate infrastructure resilience through modeling under sea level rise, storm surge, and intensified precipitation scenarios.

Pipeline Design & Rehabilitation
Underground infrastructure is out of sight — but its condition determines whether communities stay dry, water keeps flowing, and environmental protections hold. PEC Water designs and rehabilitates pipelines across the full spectrum of materials, diameters, and applications: storm sewer, sanitary sewer, and water conveyance systems from small-diameter neighborhood mains to large regional gravity and pressure mains.
Pipline Design
New installation and expansion for storm, sanitary, and potable water pipelines (gravity and pressurized) with constructability embedded through our California General Contractor license on staff.

Pipeline Rehabilitation
Condition assessment and rehabilitation design via CCTV inspection, dye testing, and field investigation. Structural lining and joint repair solutions that extend service life without open-cut work.

Trenchless Technology
Boring and jacking, pipe ramming, directional drilling, CIPP, spiral wound, UV-cure, sliplining, segmented pipe insertion, pipe bursting, microtunneling, and SIPP, matched to site conditions and pipe.

Outfall Rehab & Program Management
Outfall rehabilitation addresses structural failure, scour, and erosion, with program management covering asset inventories, capital planning, and agency coordination.

