• CERCLA & RCRA Regulatory Support
  • Compliance/Permitting
  • Field Services
  • Back to Services

TerraGraphics provides expert level technical environmental support to all phases of CERCLA and RCRA actions. TerraGraphics’ staff experience includes remedial support from investigation and characterization through feasibility study and final remedy selection.
Remedial Investigations
● Feasibility Study
● Data Quality Objectives
● Sample and Analysis Plans
● Data Quality Assessments
● Corrective Measure Studies
● Remedial Action Work Plans
● Proposed Plans


TerraGraphics’ environmental professionals are experienced in the navigation of increasingly complex regulatory processes. Permitting support and construction monitoring services offered by our team help ensure our clients maintain project success and environmental stewardship.

RCRA Permitting
Facility start-up, modification support, compliance updates

Environmental Site Assessments
Phase I and Phase II investigations, sampling and reporting

Environmental Impact Statements
Natural and built environmental impact analysis and mitigation planning

Wetland Support
Reconnaissance, delineation, assessment, encroachments

Dispersion Modelling
Hazard evaluation, mitigation, and planning using state of the art air modelling software operated and interpreted by expert level professionals trained in this very specific field.

Waste Management
Expertise in the field of waste management and transportation services, ensuring compliance with state and federal regulations by offering experience in waste designation, packaging, storage, and shipment, assisting clients with cradle to grave planning and execution of projects involving generation or handling of waste materials.


TerraGraphics is committed to providing methodical, high quality, scientific principles and processes to field investigations and project support. Our professionals are 40 Hour Hazardous Waste Operations trained with experience characterizing previously uninvestigated sites.

Geologic / Hydrogeologic
Field geologists, geologic modelers, and hydrogeologists experienced in the installation of groundwater wells and subsurface sampling through various drilling methods. Hydrogeologists and modelers apply scientific principles to help solve problems related to leak detection, contaminant fate and transport, site characterization, soil and groundwater remediation.

Archeological and Cultural Resources
Professional archeologists with sound tribal relations ensure our clients execute projects within the bounds of federal and state regulations by conducting archaeological investigations, surveys, monitoring, mitigation, and reporting for compliance with Section 106 of the National Historic Preservation Act, Washington SEPA, and Washington State Executive Order 05-05.

Biological and natural resource scientists experienced in species identification, inventorying, surveying, revegetation, and mitigation. Flora and fauna of the northwest are a treasured resource and TerraGraphics’ scientists provide value added technical guidance on investigating, planning, and executing projects with any level of biological impact.

GIS/Mapping Support
GIS database design, field data collection, modeling, spatial analysis and high-quality map production are offered as services to supplement any project.