Luhdorff & Scalmanini Consulting Engineers

Integrating Groundwater, Science & Engineering

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About the firm

Luhdorff & Scalmanini Consulting Engineers (LSCE) is a water resources engineering and groundwater consulting practice founded in 1980. Operating for over four decades, it integrates hydrogeology, engineering, and scientific methods to address complex groundwater resources, water quality, and water supply challenges. The practice serves water districts, government agencies, agricultural entities, and environmental stakeholders from its offices in California and Idaho, with thousands of completed projects.

Established
1980
Firm type
Water / Wastewater Engineering · Environmental Engineering

Credentials

SB555 Certified Water Loss Audit Validator

Capabilities

Groundwater Resources

Service website

evaluation, development, and management.

  • Groundwater Sustainability Planning

    Sustainable Groundwater Management Act compliance and Groundwater Sustainability Plan development.

  • Conjunctive Use & Recharge Planning

    Conjunctive use, Aquifer Storage and Recovery, in-lieu recharge, water banking, and water transfer programs.

  • Hydrogeologic Modeling & Conceptualization

    Hydrogeologic conceptual models, groundwater-surface water interactions, water budgets, and sustainable yield analyses.

  • Groundwater Monitoring & Testing

    Monitoring plan development, data collection, aquifer testing, and land subsidence interpretation.

  • Deep Well Injection & Waste Disposal

    EPA Class I deep injection well feasibility, design, and permitting.

Wells & Pump Stations

Service website

Planning, permitting, engineering design, and construction services for municipal, industrial, agricultural, and domestic water supply systems.

  • Groundwater Well Siting & Design

    Siting, design, drilling oversight, testing, and construction management.

  • Pump Station Facility Design

    Engineering design, pump station facilities, booster pumps, and system-head operating analysis.

  • Well Testing & Rehabilitation

    Pumping plant and well efficiency testing, troubleshooting, rehabilitation, and retrofits.

Treatment, Storage & Distribution

Service website

Water treatment and distribution engineering from conceptual planning through startup and construction management.

  • Water Treatment System Design

    Arsenic, chromium, salinity, nitrate, iron, and manganese removal technologies, disinfection, and chemical systems.

  • Water Storage & Distribution Facilities

    Water storage tanks, reservoirs, booster pump stations, water mains, and pressure reducing stations.

  • Water System Planning & Compliance

    Water Master Plans, Capital Improvement Plans, Urban Water Management Plans, and SB555 Water Loss Audits.

Environmental Services

Service website

Environmental compliance and support for water resource development projects.

  • Permitting & Compliance Assistance

    CEQA/NEPA compliance strategies, mitigation development, and municipal water system permitting.

Hydrogeologic and hydraulic modeling supporting water planning and engineering.

  • Groundwater Flow & Transport Modeling

    Flow, transport, and groundwater-surface water interaction models.

  • Hydraulic Distribution Modeling

    Distribution system hydraulic modeling and analysis.

Data Management Systems

Service website

Spatial analysis and data systems to support groundwater monitoring and reporting.

  • GIS & Spatial Analysis

    Spatial analysis of land use, environmental factors, and hydrogeologic parameters using geographic information systems.

  • Monitoring Data Management

    Data collection, management, and reporting workflows.

Industries

Water Supply · Water Resources · Environmental & Remediation · Government · Agriculture

Projects

Napa County Groundwater Sustainability Planning

Napa County, CA · Water Resources · Client: County of Napa

Project details

Development of Groundwater Sustainability Plans and groundwater sustainability planning in Napa County, advancing the hydrogeologic conceptualization of Coast Range geologic history and its influence on present day water resources.

Beltz Well No. 12 Treatment Plant and Site Improvements

Santa Cruz, CA · Water Supply · Client: City of Santa Cruz

Project details

Engineering design and construction oversight for a potable groundwater treatment plant to remove high levels of iron and manganese using modern filtration systems.

McLaughlin Well Field

Water Supply

Project details

Siting, design, and development services for the McLaughlin Well Field.