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Greylock Consulting LLC

Providing Water Resources and Environmental Services
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Greylock Consulting LLC is an Environmental and Water Resources Consulting Firm focusing on accomplishing projects in a cost-effective manner.
Greylock provides the following services:



Environmental Site Assessments

      -Phase 1/Phase 2/Phase 3

Environmental Cleanups

     -Soil, Groundwater, Sediment, Storm Water 

         -Consistent with MTCA & CERCLA

Environmental Field Work

     - Soil Sampling

     - Water Quality Monitoring

     - Groundwater Monitoring

     - Sediment Sampling

     - Storm Water Sampling

     - UST Assessment & Remediation

     - Asbestos Sampling

Groundwater Studies     

     -Groundwater Mapping

-Contaminant Plume Mapping

-Well Installation

-Aquifer Testing

-Water Quality Testing

Geophysical Surveys    

    -Seismic Surveys to Determine the 

     Depth and Yield of an Aquifer

Environmental Permitting 



Erosion & Sediment Control

     - Preparation of Storm Water Pollution Prevention Plans

     - Erosion & Sediment Control Leads(CESCL)

Expert Witness

     - Groundwater

     - Environmental Cleanups

Nearshore Fill Construction

Stormwater Sampling


Contact Information:
Greylock Consulting LLC
720 S. 333rd St., Suite 210
Federal Way, WA 98003
(253) 661-3520
Sediment Sampling

Our Clients Include:

Land Owners




Real Estate Professionals



Property Managers

Greylock Consulting LLC is a Certified Woman Owned Business (WBE) and Disadvantaged Business Enterprise(DBE #D2F8019850). We can be located on the Central Contractor Registration(CCR), Online Representations and Certifications Application(ORCA) and also hold Transportation Worker Identification Credentials (TWIC).
Greylock Consulting LLC is an Equal Employment Opportunity Organization
Environmental Monitoring