Plastic, PVC and polyethylene water pipes; plastic, PVC and polyethylene gutter pipes; plastic, PVC and polyethylene pipes for gravity water for retention, detention and drainage purposes and for pressurized water for irrigation purposes; pavers; nonmetallic construction materials, namely, drain bases and grates; erosion control fencing; non-metal fencing; erosion control fabric; geotextiles for the purposes of drainage, stabilizing inclines, recultivation, plant support, absorption, filtration, separation, stabilization and reinforcement of the soil; Concrete drainage structures, namely, trench drains; erosion control mats; non-metal storm water drain bases and grates; non-metal sewer pipes; cement