Advanced Protection Management Program in the Russian River Watershed
收藏California State Geoportal2026-03-28 收录
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资源简介：
The
Action Plan establishes a 600-foot zone of influence for OWTS adjacent to perennial
streams, which for the purposes of the Action Plan are blueline streams that are depicted
on the USGS 1:100,00 scale topographic map, and a 200-foot zone of influence for lower
class streams that are derived using a LIDAR dataset. The 600-foot distance is based on a
microbial contamination zone that was recommended by the California Department of
Public Heath (CDPH, 1999) to protect water supply from viral, microbial and direct
chemical contamination.
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California State Geoportal
