Additional Water Quality Concerns
Riparian Corridor
Another significant problem in the watershed is streambank erosion. There are ten miles of
severely eroded stream banks in Logan County alone. Logan NRCS staff observed areas where six
to 12 inches of the bank were lost each year and average height of the bank top is four feet
from normal water line. Livestock grazing on streambanks accelerates the amount of bank erosion
occurring. A majority of the streambank erosion is due to the loss of riparian vegetation.
Livestock not excluded from streambank are a secondary problem which is mostly located in the
North Fork and South Fork sub-watersheds.
Other Water Quality Concerns
Other potential sources of nonpoint source pollution in the Indian Lake Watershed are
application of municipal sludge, on-site sewage treatment, leaking and abandoned septic
systems, inadequate functioning septic systems, improperly maintained sewer and septic systems,
storm water runoff, urban construction, urban lawn care, yard waste and composting, quarry
operations, recreational impacts and littering.
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