Full-service planning and design for water, wastewater, and recycled water projects
HydroScience Engineers is a full-service civil engineering practice based in Northern California that provides planning, design, and construction phase services for water, wastewater, and recycled water projects. Established in 1998, the team delivers comprehensive civil engineering solutions for municipal, tribal, and private clients across California and internationally. Its capabilities span treatment plant design, conveyance infrastructure, water resources management, and regulatory compliance support.
Curtis LamPresident
Bill SlenterPrincipal
Mary HoangPrincipal
Fadi AlabbasPrincipal
Sim BlakePrincipal
George HarrisPrincipal
Planning and design of water treatment, storage, and conveyance infrastructure to ensure quality, reliability, and regulatory compliance.
Engineering of surface water and groundwater treatment facilities designed for regulatory compliance and efficient operations.
Design of water storage tanks, booster pump stations, and municipal wells.
Planning and design of water distribution networks and large transmission mains, including hydraulic modeling and fire flow testing.
Development of comprehensive municipal master plans, demand assessments, and system capacity analyses.
Planning and design of wastewater treatment plants, collection systems, and lift stations for public and private infrastructure.
Engineering of primary, secondary, and advanced treatment systems, including membrane bioreactors, activated sludge, headworks, and disinfection facilities.
System-wide sewer master planning, wet-weather flow modeling, and capacity evaluations.
Design of sewer trunk lines, pressure mains, gravity sewers, and municipal pump stations.
Evaluation of aging infrastructure and design of trenchless rehabilitation solutions, such as cured-in-place pipe (CIPP).
Strategic feasibility planning, regulatory navigation, and design of recycled water facilities, storage, and distribution systems.
Feasibility studies, market assessments, and regulatory navigation for complex water reuse initiatives.
Design of advanced purification processes, storage reservoirs, and transfer pumping infrastructure.
Engineering of dedicated recycled water pipelines and customer service retrofits.
Operational testing, regulatory compliance approvals, and customer outreach to safely manage dual-plumbed systems.
Technical field support, construction monitoring, and system commissioning to transition utility infrastructure into active operations.
Technical support including submittal reviews, response to requests for information, and design clarifications.
On-site monitoring, progress tracking, and quality assurance during the construction phase of civil works.
Functional testing, process tuning, operator training, and facility startup coordination.
Water Supply · Wastewater · Water Resources · Government
Hayward, CA · Water Supply · Client: City of Hayward
Design of water distribution and sewer collection system improvements across 32 separate municipal locations, totaling 5 miles of water and 3 miles of sewer pipelines. The scope resolved pipeline structural issues, improved maintenance access, and managed complex permitting for crossings near BART, Caltrans, and railroad tracks.
San Mateo, CA · Wastewater · Client: County of San Mateo
Planning, design, and construction oversight for a modern wastewater treatment plant (WWTP) and collection system improvements to replace an aging, 50-year-old system. Features a new sewer force main, pump station, and a highly efficient extended aeration process within a low-impact footprint.
Manteca, CA · Water Supply · 2022 · Client: City of Manteca
Preparation of a design report, detailed specifications, and construction phase support for Granular Activated Carbon (GAC) treatment systems on four groundwater wells to address 1,2,3-trichloropropane (TCP) contamination. Managed as a collaborative progressive design-build project, securing an ENR California Best Project award.
Mountain View, CA · Water Resources · Client: City of Mountain View
Development of comprehensive Water and Sewer Master Plans utilizing hydraulic modeling and hydrant flow tests. The analysis evaluated existing system capacity, projected future demands based on land use files, and established a prioritized Capital Improvement Program.