System and method for securing cover over retention pond using negative pressure

A system to securely cover a retention pond, the system comprising:

• a first negative-pressure apparatus comprising one or more first fans and at least, one first manifold pipe coupled to the one or more first fans, wherein the at least one the manifold pipe comprises one or more first structures for drawing air into the at least one first manifold pipe;
• a second negative-pressure apparatus comprising one or more second fans and at least one second manifold pipe coupled to the one or more second fans, wherein the at least one second manifold pipe comprises one or more second structures for drawing air into the at least one second manifold pipe;
• and
• a flexible cover positioned over a material in the retention pond, at least a portion of the at least one first manifold pipe, and at least a portion of the at least one second manifold pipe,
• wherein the one or more first fans draw air through the at least one first manifold pipe and the one or more second fans draw air through the at least one second manifold pipe to create a negative pressure that holds the flexible cover to portions of a wall of the retention pond when the one or more first fans and the one or more second fans are activated.