methods of operation
The term methods of operation means the installation, emplacement, or introduction of materials, including those involved in construction, to achieve a process or procedure to control: Surface water pollution from non-point sourcesthat is, agricultural, forest practices, mining, construction; ground or surface water pollution from well, subsurface, or surface disposal operations; activities resulting in salt water intrusion; or changes in the movement, flow, or circulation of navigable or ground waters.