Specifications include, but are not limited to: The Maryland Environmental Service (“Service” or “MES”) is soliciting expressions of interest (EOI) from Architectural/Engineering (“A/E”) firms to enter into agreements to provide engineering services on an as-needed basis. The variety of projects include solid waste management projects; water and wastewater treatment plant design and upgrade, collection and distribution system assessment and design, biosolids handling and disposal; dredging and dredged material placement including dredging operation facility planning, design and environmental services, Total Maximum Daily Load (TMDL) compliance including BMP (best management practice) development, wetlands and habitat development, infiltration/inflow study/correction; geotechnical services; environmental management systems, engineering, and environmental compliance; energy analysis, design, and support services; mechanical engineering; electrical engineering