Sonoma Technology

Foundation in Air Quality, Climate Science, and Environmental Data Solutions

For more than four decades, Sonoma Technology combined atmospheric science with the measurements, modeling, forecasting, and data systems needed to understand changing environmental conditions. Its work spanned community and industrial air monitoring, emissions analysis, wildfire smoke, meteorology, public health, environmental justice, transportation, and climate, supported by customized software and decision tools that made complex information accessible and useful.

That combination of science and technology established an important foundation for Spheros Environmental. Today, Sonoma Technology’s legacy is reflected in work that connects environmental measurements and analysis with practical tools for monitoring conditions, communicating results, and supporting defensible decisions.

LRE Water

Foundation in Integrated Water and Environmental Solutions

Since 1970, LRE Water has helped communities, utilities, agencies, industries, and water users make informed decisions about one of their most critical resources. Its work brought together water rights and litigation support, groundwater and surface water modeling, supply development, watershed and reservoir management, environmental compliance, and long-term water planning across the western United States.

LRE Water also paired that technical and regulatory knowledge with customized water accounting, data management, visualization, and decision-support systems. This ability to connect water science, engineering, technology, and practical judgment remains central to Spheros Environmental’s work wherever water availability, operations, environmental conditions, and community needs intersect.

HydroGeoLogica

Foundation in Mining, Environmental Investigation, and Remediation

HydroGeoLogica built its practice around technically complex water and environmental challenges in the mining, federal, and industrial sectors. Its scientists applied hydrogeology, geochemistry, groundwater-flow and geochemical modeling, aquifer testing, and water-quality analysis to understand conditions below the surface and predict how they could change over time.

From mine water and mine waste management to pit lakes, seepage, contaminant movement, and remediation, the firm developed pragmatic solutions informed by both advanced technical tools and operating realities. That specialized understanding now contributes to Spheros Environmental’s ability to support responsible resource development, environmental investigation, water management, and long-term site stewardship.

Timberline Aquatics

Foundation in Aquatic Monitoring and Bioassessment

Timberline Aquatics developed specialized studies to reveal what aquatic organisms can tell us about the health of rivers, streams, and other freshwater systems. Its work extended from study design and benthic macroinvertebrate sampling through laboratory sorting, taxonomic identification, quality control, data analysis, and technical interpretation.

By connecting carefully collected biological data with established bioassessment methods and scientific literature, Timberline helped clients identify environmental disturbances, understand aquatic conditions, and meet regulatory and resource-management objectives. That focused expertise adds depth to Spheros Environmental’s aquatic ecology, biological monitoring, water resources, and habitat assessment capabilities.

EcoAnalysts

Foundation in Ecological Assessment, Taxonomy, and Toxicology

EcoAnalysts brought field science and laboratory analysis together to produce reliable data about aquatic and terrestrial environments. Its teams conducted aquatic resource inventories, fish surveys, ecological impact assessments, and biological monitoring, supported by specialized taxonomy and aquatic and sediment toxicology laboratories.

The firm’s capabilities extended across freshwater, estuarine, marine, and terrestrial settings and included harmful algal bloom testing, whole-effluent and product toxicity testing, and the identification of organisms used to evaluate ecological conditions. This integrated field and laboratory foundation broadens Spheros Environmental’s ability to understand biological communities, assess environmental effects, support regulatory programs, and inform conservation and resource-management decisions.

Northwater Consulting

Foundation in Watershed Science and Geosciences

Northwater Consulting approached water as both a local resource and an interconnected system. The firm characterized watersheds, protected source water, evaluated water quality, and helped communities and organizations plan for reliable supplies. Its work ranged from water rights and drought planning to groundwater exploration, wastewater considerations, aquifer assessment, and watershed restoration.

Northwater also applied hydrogeology, geological engineering, geophysics, and environmental assessment to support infrastructure and resource development in the United States and internationally. That combination of watershed planning and subsurface science continues to strengthen Spheros Environmental’s work in water supply, geosciences, environmental permitting, monitoring, and sustainable water management.

This legacy strengthens Spheros Environmental’s work in watershed resilience and sustainable water infrastructure, carrying forward Northwater’s commitment to its clients and the communities it served.

Four Peaks Environmental

Foundation in Fisheries, Aquatic Science, and Environmental Data Solutions

Four Peaks Environmental brought together fisheries science, watershed and habitat expertise, water-resource management, regulatory knowledge, and environmental data solutions. Its scientists and engineers studied fish passage, survival, behavior, hatchery performance, and aquatic ecology while helping clients understand how flow, temperature, water quality, geomorphology, land use, and changing habitat conditions affect aquatic systems.

The firm also developed telemetry systems, remote-data pipelines, web-based reporting tools, databases, statistical models, geospatial analyses, and real-time visualizations that transformed environmental information into actionable insight. This combination of field science, modeling, and technology now supports Spheros Environmental’s work in fisheries, habitat restoration, water-quality management, regulatory compliance, and environmental decision support.

Ironwood Consulting

Foundation in Biological Resources and Regulatory Compliance

Ironwood Consulting built its practice around understanding and protecting sensitive biological resources while helping projects navigate environmental requirements. Its biologists conducted habitat assessments, botanical inventories, vegetation mapping, wetland and jurisdictional delineations, and focused surveys for threatened, endangered, and other special-status plant and wildlife species.

That field expertise extended into biological resource reports, CEQA and NEPA documentation, resource-management plans, federal and California permitting, habitat restoration, mitigation, and construction compliance monitoring. Supported by GIS, GPS, and digital information management, Ironwood connected field observations with the documentation and coordination needed to move projects forward responsibly. That foundation now adds depth to Spheros Environmental’s biological resources, permitting, and implementation capabilities.

KP Environmental

Foundation in Environmental Planning and Permitting

KP Environmental helped complex infrastructure and development projects move from early planning through environmental review, permitting, construction, and compliance. Its multidisciplinary team supported project definition, fatal-flaw analysis, siting and routing, environmental impact analysis, regulatory strategy, agency coordination, and implementation across California and the western United States.

The firm combined environmental and natural-resource planning with GIS, interactive project tools, public involvement, stakeholder engagement, environmental training, and construction monitoring. With particular depth in power, energy transition, data center, utility, and public infrastructure work, KP Environmental established a foundation that now complements Spheros Environmental’s scientific expertise across the full project lifecycle.

Panorama Environmental

Foundation in Environmental Planning, CEQA/NEPA, and Regulatory Permitting

Panorama Environmental brought a broad range of disciplines together to help clients define projects, evaluate feasibility and environmental constraints, and navigate environmental review. Its team included environmental planners, project managers, GIS specialists, biologists, air quality and noise specialists, paleontologists, foresters, and visual-resource specialists.

Based in San Francisco, the firm supported power, renewable energy, data center, water, natural-resource, and public-sector projects through technical studies, CEQA and NEPA review, permitting, stakeholder engagement, environmental training, mitigation, and compliance monitoring. That full-lifecycle perspective now contributes to Spheros Environmental’s ability to coordinate complex environmental planning and permitting efforts across California and the western United States.