40 Watershed consulting services; chemical and non-chemical treatment of water for the elimination of weeds and algae
37 Dredging, excavating, grading, compacting, and sedimentation services; turf removal, installation, and repair services; soil erosion control services
44 Vegetation control and management services; vegetation planting and removal services; lawn mowing services; soil aeration services; landscape gardening, design, and architecture services; maintenance of retention ponds and detention ponds
42 Water quality control and analysis services; engineering and consulting services in the field of storm water management equipment and systems, vegetation management, and lake and pond management; environmental engineering services