208.882.7858 bd@alta-se.com

Environmental Services

Helping our clients manage the challenges of human health and environments is more than just a technical endeavor, it’s about upholding shared values.

Our ProjectsJoin Alta

Our Environmental Services

Our risk assessment services focus on the human and environmental impacts of exposure to hazardous substances. We approach these challenges with a blend of heartfelt commitment and technical precision, tracing the life cycle of these risks from their origin to resolution. In doing so, we help clients to mitigate dangers while nurturing and protecting the well-being of communities and the natural world.

Our Services:

  • Human Health & Ecological Risk Assessment
  • Idaho REM
  • Washington State MTCA
  • Montana RBCA
  • Oregon RBDM
  • IEUBK Lead Model Analysis
  • Risk Communication
  • Agency Negotiations
  • Conceptual Site Model
  • Development
  • CERCLA/Superfund
  • Direct Push Drilling
  • Site Characterization/Compliance Monitoring
  • Risk Assessment

Featured Project

Human Health Risk Assessment Activities for the Coeur d’Alene River Basin

Alta completed a comprehensive Human Health Risk Assessment (HHRA) of potential exposures and risks for the Coeur d’Alene Basin. The project integrated existing data from State and federal health and exposure surveys, the Remedial Investigation/Feasibility Study process, and the ongoing Natural Resource Damage Assessment.

Alta determined the extent of heavy metal contamination, evaluated potential human health risks, and provided information so risk managers could determine the need for remedial action and develop clean-up criteria. Alta conducted site-specific quantitative analysis of the relationship between observed blood lead levels and environmental variables. We also conducted one of the most extensive evaluations of lead paint as an additional source of exposure at a CERCLA site.

Alta analyzed blood lead data relative to yard and house dust lead levels to evaluate the program’s effectiveness. Coeur d’Alene Tribe Subsistence Scenarios were also assessed in association with tribal representatives. These scenarios pertain to children and adults engaged in traditional (aboriginal) or current subsistence lifestyles in the floodplain of the Coeur d’Alene River.

Alta developed procedures (including addressing data gaps) to combine data from these activities into a comprehensive, compatible data set. Alta performed the lead risk portion of the HHRA while the EPA contractor performed the non-lead risk portion. Alta then combined these efforts into a draft HHRA document, released in June 2000. Several entities, including the national EPA Technical Review Work Group for Lead, commended the HHRA as an innovative and comprehensive report.

They (Alta) achieved the goal that all consultants strive to do: exceeding customer expectations.

– Bill Owen, City of Portland, Env. Services

Contact Alta

Contact Information

Alta Moscow
220 East Fifth Street, Suite 325
Moscow, Idaho 83843
208-882-7858
208-883-3785 (fax)

Alta Kellogg
1220 Big Creek Road, Suite A
Kellogg, Idaho 83837
208-786-1206
208-786-1209 (fax)

Alta Boise
988 S Longmont Ave, Suite 200
Boise, Idaho 83706
208-336-7080
208-908-4980 (fax)

Alta Spokane
707 W Main Ave, Suite B1
Spokane, Washington 99201
509-252-5021
208-883-3785 (fax)