CAS & Associates, LLC (CAS) is an environmental engineering and consulting firm, based in Boise, Idaho specializing in Phase I and II Environmental Site Assessments (ESAs). CAS has been providing professional environmental services to industrial, municipal, construction, and transactional clients for over the past twenty-five years.


We not only serve our close neighbor clients in Meridian, Eagle, Nampa, and other cities throughout the state of Idaho, but also adjacent States. CAS experienced team of Engineers, Geologists, and Environmental Scientists, are the key to our success.


Our mission is to deliver the best professional services and provide excellent value to our clients through environmental consulting and engineering solutions. CAS & Associates, LLC (CAS) continues to operate on many-core fundamentals including technical knowledge, timely management, communications, and customer satisfaction.  We excel in these areas enabling us to consistently coordinate and successfully complete Phase I and II Environmental Site Assessments (ESAs) projects for our clients on a timely basis.​ The main objective of CAS is to provide an objective and professional judgment of recognized environmental conditions (RECs).

CAS & Associates, LLC

2778 N. Lakeharbor Ln.

Boise, ID  83703



T: (208) 761-3001

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It’s each chemical makeup of the soil on which your property stands. For soil sampling