air quality management

Antelope Heating & Air, Inc. is an HVAC company serving the greater Sacramento area with over 30 years of experience. It offers energy-efficient heater and air conditioning repair, maintenance, and replacement for residential and commercial clients, and is a certified Carrier Healthy Air Expert.

commercial HVAC serviceHVAC installationHVAC maintenanceHVAC repairventilation systems

DDC 4C is a Tribally owned, SBA 8(a) certified Small Disadvantaged Business and subsidiary of Diné Development Corporation. It provides government agencies and private sector clients with environmental compliance and natural resource management solutions, including environmental consulting and remediation, stormwater and wastewater management, hazardous waste management, air quality management, and forestry management.

environmental complianceenvironmental consultingEnvironmental planning and impact assessmentsforestry managementhazardous waste managementInvasive species managementPesticide/herbicide applicationprescribed burningremediationStormwater and wastewater managementwildlife habitat enhancement

Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving the environment, natural resources, energy, and civil infrastructure. It is an employee-owned, private-equity-backed, practitioner-led firm with a combined staff exceeding 3,000 engineers, scientists, and related technical and project support personnel, serving clients from more than 140 offices in the United States, Canada, the United Kingdom, Ireland, Sweden, Spain, Finland, the United Arab Emirates, Sa

aquifer modelingcontaminated site assessment and cleanupdam breach analysis and inundation mappingData science and machine learningenvironmental data visualization and analysisgeological analysisgeotechnical engineeringGISinformation management and geospatial data servicesinfrastructure planning, engineering and designinstrumentation and remote monitoringremote sensing analysisrisk assessmentstormwater master planningwater resources managementwater treatment planningwellfield design