performing research, testing and education on Dutch Bill Creek, a
tributary of the Russian River, from the Sonoma County Water Agency.
The focus of this project is to identify pollution sources and problems
in water quality, and use data collected to develop fact sheets and
educational materials for the general public highlighting best management
practices and strategies for reducing pollution.
historic issues on Dutch Bill Creek are Wastewater and Erosion.
The Occidental Wastewater Treatment Plant uses a holding pond at
the headwaters of the creek, and is allowed to discharge to the
creek up to 1% of creek flow between October and May. This Treatment
Plant has been out of compliance with permits and environmental
regulations for years and is under state order to upgrade the facility.
Camp Meeker and Monte Rio residences and several commercial camps
are suspected by some to have failing septic systems impacting the
watershed. Manure from cattle which graze directly adjacent to the
creek near its headwaters also may enter the creek. Erosion from
dirt roads near the creek has also been a source of water pollution.
Starting from Occidental, going towards Monte Rio
DBC060: At bridge near Graton Rd. and Main Street, Occidental.
The stream is small and shallow in this area, and is mid gradient
step pool habitat with a gravel substrate. The stream runs along
Graton Road here and suffers from garbage dumping. It is downstream
of the wastewater discharge point and cattle pasture and is adjacent
to the town of Occidental, though location of storm drains is unknown.
This site can dry up during low flow summers, and has good canopy
cover. - GPS point: N 38 24.675' W 122 56.918'
DBC050: 75 yards downstream from sewer pump station, where
primary sewage is collected and pumped up hill for treatment. The
stream lies between Hwy 116 and Old Bohemian Hwy, with access from
the latter. The channel is mid gradient step-pool with boulders,
cobble, gravel and some bedrock. The sampling site is located in
a confined bedrock and boulder scour pool several feet deep, and
has very good canopy cover.- GPS point: N 38 24.887' W 122 57.064'
LAN010: Lancel Creek shortly before it's confluence near
the railroad trestle, accessed from the west side of old Bohemian
Hwy. The site is a large scour pool below the road culvert the stream
must pass through. There were some concerns over turbidity from
upstream areas in Lancel Creek.- GPS point: N38 25.372' W 122 57.x32'
DBC030: Just upstream of Camp Meeker Dam. The channel is
unconfined here with a gradual flood plain. The stream is a shallow,
low gradient glide/ riffle over gravel. Stream side vegetation is
weedy shrubs and grasses with no tree cover. - GPS point: N38 25.609
W 122 57.547'
DBC020: Downstream from Bohemia Ranch, just downstream of
where Grub Creek enters Dutch Bill Creek on Westminster Woods property.
The stream reach is has overhanging banks along a shallow, wide
u-shaped channel with cobbles and gravel. Mature trees provide good
canopy cover. It is a run with mild mid-channel scour in this area,
though some root wads and other instream structures have been added
to enhance habitat. Flow measurements are taken here. There were
concerns over possible turbidity form upstream erosion on Grub Creek.-
GPS point: N 38 26.309' W 122 58.517'
DBC010: Along the curve in Hwy 116 just above the fish ladder.
Pull off point is on the west side of the road at the three cement
blocks. Stream is confined on one side by a steep rock hill, and
the road on the other. High gradient step pools are made of boulders,
cobble, gravel, bedrock and cement from road work and fish ladder.
The site is at a relatively deep trench pool with overhanging cement
ledge. Some tree and brush cover is present upstream of the site,
though the site itself is too confined by cement and steep sides
to carry many trees.- GPS point: N 38 26.747' W 122 58.842'