33.12.00 Surface Water Sources
33.12.43 Floats for Reservoir Floating Covers
33.12.11 Intake Structure Systems 33.12.13 Intake Cribs 33.12.16 Intake Drop and Riser Shafts 33.12.31 Reservoir Weight-tensioned, Defined Sump Floating Covers 33.12.31.13 Reservoir Weight-tensioned, Defined Sump Polyethylene-reinforced Floating Covers 33.12.31.23 Reservoir Weight-tensioned, Defined Sump Polypropylene-reinforced Floating Covers 33.12.33 Reservoir Mechanically-tensioned Floating Covers 33.12.33.13 Reservoir Mechanically-tensioned Polyethylene-reinforced Floating Covers 33.12.33.23 Reservoir Mechanically-tensioned Polypropylene-reinforced Floating Covers 33.12.36 Reservoir Short-term Floating Covers 33.12.39 Reservoir Ball Floating Covers 33.12.43 Floats for Reservoir Floating Covers 33.12.46 Appurtenances for Reservoir Floating Covers 33.12.53 Reservoir Flexible Baffle Curtains