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The pipeline corridor housed a plastic pipe carrying discharge from the portal to the CDPHE <br />discharge paint in the ephemeral channel of Lone Pine Gulch. The sub-area consisted of <br />the corridor leading down the slope from the portal, and the discharge point. The latter <br />consisted of the discharge pipe, a stairway for access to the discharge point for sampling, <br />and a structure housing a flow meter. The upper pipeline area was never excavated, but a <br />"brush crush" utilized by which a dozer bladed off the taller vegetation. This area has never <br />shown any erosion or off-site sediment transport during its operational period. Since the <br />removal of the pipeline the oak brush has grown back to the point where it is barely <br />distinguishable from the undisturbed hillside. The grading of the corridor to AOC was fine <br />and there was no erosion along the margins of the corridor. All the structures have been <br />removed, including the substation (and its gravel pad), the stairs and flowmeter structure. <br />As previously noted, a demonstration will be required in the permit to continue managing this <br />area as an SAE. utilizing USLE with the present vegetative cover. Photo of the corridor: <br />