what we do

Solid & Hazardous Waste

Reducing and safely processing solid waste

Public awareness and new technologies are changing the solid waste industry. Parametrix helps clients respond to these changes by developing cutting-edge solutions geared toward reducing waste and operating waste facilities in a sustainable manner. Our solutions use new technologies, improve productivity, reduce costs, and ensure effective environmental controls.

Horn Rapids Landfill Site Closure | Parametrix
​Horn Rapids Landfill Site Closure
Richland, Washington
Client: ​City of Richland

Since 2005, Parametrix has assisted the City with projects to improve operations at the landfill. Our solutions have allowed the City to operate within the existing landfill for 5 years longer than anticipated. We have been responsible for managing landfill gas, improving the groundwater monitoring system, implementing closure grading enhancements, and leading master planning efforts to determine the most effective means to continue operations at the site beyond 2017.



  • Solar Evaporation Ponds | Parametrix

    Solar Evaporation Ponds

  • North Transfer Station | Parametrix

    North Transfer Station

  • Cedar Hills Landfill | Parametrix

    Cedar Hills Regional Landfill

  • Factoria Recycling | Parametrix

    Factoria Recycling & Transfer Station

  • Horn Rapids Landfill | Parametrix

    Horn Rapids Landfill Site Closure

  • Simco Road Landfill | Parametrix

    Simco Road Regional Landfill