Sentinel Consulting Services, LLC (Sentinel) is a civil/environmental engineering consulting company with a strong track record for delivering sound technical and regulatory consulting services. Since 2002, our primary business capacity has focused on providing sound technical review, position development, and policy advice to numerous Regulatory Agencies involving a wide range of engineering design reviews, as well as construction, compliance, and compliance oversight. In addition, our company has developed, implemented, or evaluated Construction Quality Assurance testing programs for infrastructure and structural projects, as well as for solid and hazardous waste containment. Because of our extensive compliance oriented background in the Resource Conservation and Recovery Act (RCRA) and Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), complemented with in-house design capability, we offer an excellent perspective on the design/compliance conjunction important to our regulatory and private clients.