The Ultra-Dewatering Bag is an essential solution for managing the silt, sediment, and oil extracted during dewatering operations in swampy or low-lying areas, commonly encountered in construction projects. When water is pumped out from these areas, it carries a mix of contaminants including dirt, silt, mud, and debris. Direct discharge of these pollutants into storm drains poses environmental risks. The Ultra-Dewatering Bag offers an economical and efficient remedy by capturing these impurities. By channeling water through the bag, it effectively filters out silt, dirt, sand, and other pollutants, ensuring that only clean water is released into the ground or nearby storm drains. Key features include its ability to detain both oil and sediment, providing a unique advantage over alternative dewatering bags, along with the availability of standard and custom sizes. Additionally, it accommodates up to a 4" discharge hose, with an optional hose connector facilitating quick and easy connection and disconnection of the dewatering bags, enhancing usability and efficiency. Ultratech Ultra-Dewatering Bag 9729-O/S Oil & Sediment Model, 3' x 4' 9729-O/S-UT