42 Analysis of stream water quality; Consultation services in the field of hydrological research; Consulting services in the field of environmental assessment and planning; Consulting services in the field of the design of aquatic and terrestrial habitats, stormwater systems, wetlands and landscapes; Custom design and engineering of aquatic and terrestrial habitats, stormwater systems, wetlands and landscapes; Design for others in the field of erosion management and environmental engineering; Engineering and habitat restoration design services in the field of wetland preservation; Engineering services in the field of environmental compliance; Engineering services, namely, engineering for the field of environmental resource conservation, protection and management; Environmental services, namely, detection of contaminants in water; Environmental testing and inspection services; Hydrologic study of surface and ground water; Hydrological calculations and simulations of flood flows in streams, marshes, and wetlands; Hydrological research; Monitoring of stream water quality; Professional consulting services in the fields of engineering, land use planning, surveying, landscape architecture, and environmental sciences; Technical consultancy in the field of environmental science; Technical consulting in the field of environmental engineering; Wetland habitat development and preservation services, namely, monitoring, testing and analyzing ecological success in the field of environmentally sensitive habitat conservation and preservation of native plants and wildlife