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ABOUT US
Chastain is a professional engineering firm providing a wide variety of engineering services for numerous municipalities, count...
ABOUT US
Chastain is a professional engineering firm providing a wide variety of engineering services for numerous municipalities, counties, state and local agencies, industrial, and private sector clients throughout Illinois.

MISSION
Chastain is committed to creating and maintaining long-lasting client and employee relationships, and is dedicated to providing excellent service utilizing technologically advanced, creative and economically-minded principles in a timely manner.
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