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Drainage Project
The Robinson Rancheria Drainage Project was funded by the US EPA Clean Water Act Non Point Source Pollution Program and was completed in 2009. Nonpoint Source (NPS) pollution comes from many diffuse sources, while Point Source pollution comes from specific point locations such as from industrial and sewage treatment plants. NPS pollution is caused by rainfall or snowmelt moving over and through the ground. As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters, and even underground sources of drinking water. These pollutants include:
Excess fertilizers, herbicides, and insecticides from agricultural lands and residential areas;
Oil, grease, and toxic chemicals from urban runoff and energy production;
Sediment from improperly managed construction sites, crop and forest lands, and eroding stream banks;
Salt from irrigation practices and acid drainage from abandoned mines;
Bacteria and nutrients from livestock, pet wastes, and faulty septic systems.
The purpose of the Robinson Rancheria Drainage Project was to improve the quality of the storm water runoff by reducing the amount of sediment that is introduced to the drainage system during storm events. The work consisted of re-grading of ditches, removal and replacement of the defective leaking culvert below the smallest Frog Pond floodgate, reconstruction of a drainage ditch, removal of debris from drainage structures, and installation of riprap for storm drain inlet protection.
The residential area of the Robinson Rancheria involved in this project included Manzanita Circle, New Meadowlark Lane, and the Water Tank Road. This work involved removal of debris in the existing storm sewer located on Manzanita Circle as well as New Meadowlark Lane. Additionally, the existing drainage ditch above the homes located on the north end of Manzanita Circle was re-constructed to provide adequate capacity for diverting storm water runoff. An erosion control material Enkamat was utilized to replace riprap. Enkamat also allows for the growth of vegetation to further aid in erosion control. The backyards of the three homes have little to no vegetation established, which makes the slope more susceptible to erosion during storm events.
Construction along Water Tank Road consisted of re-grading the roadway to control the runoff as well as installing inlet protection to the five (5) storm drain culverts. The riprap of the inlets will
help minimize the sediment before it enters the culvert and also aid in making the inlets visible.
Several factors impacted the drainage system adjacent to the gymnasium/pre-school area. The drainage ditch located at the toe of the slope required the removal of sediment that had accumulated down slope from diverted storm water runoff. The diversion ditch above the top of the slope was re-graded with the excess sediment removed. Straw and erosion control jute netting was also used to protect the slope. Therefore, all of the drainage improvementsof this project will help to reduce NPS pollution, and they will improve the Rancheria's storm water protection

Why Water
Sampling?
The Robinson Rancheria
Water Resource People sample every Quarter or Monthly at Kayan Meadow
or Duck Pond, Frog Pond, The New Housing Pond, the Culverts draining
into and out of the Casino parking lot, Hammond Slough, and the Newly
placed culverts located at the corner of Old Lake County Rd. and Pyle
Rd. that drain into Frog Pond. Our Sampling Plan is collecting samples for
Total Nitrogen and
Total Phosphorous. These require more than
field measurements and observations.
Every
quarter or month the Water Resource Coordinator and Technician will go
to sampling points on Robinson Rancheria to collect samples.
Over time these
parameters can indicate trends in the Rancheria's Water Quality and
better help the Water Resource Program to respond appropriately with the
supporting data to back it up.
WATER QUALITY PARAMETERS
Temperature,
Turbidity, Dissolved Oxygen (DO), pH,
Total Nitrogen,
Total
Phosphorous
Water Program Grants
Water Grants currently being
funded to the Robinson Rancheria Environmental Center
Fish and Wildlife Grant- Hitch
Monitoring Program
BIA Water Resource Management Program
USEPA
CWA 106 Program
USEPA
CWA 319 Program
USEPA
CWA NPS Competitive Program
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Stranded Hitch
Hitch Recovery Program
As of 2009 the Robinson Rancheria has
received a US Fish and Wildlife grant. This grant will focus on
developing a Hitch fish captivity breeding program through a small-scale
fish hatchery. The project will also work with Big Valley
Rancheria and Upper Lake Rancheria on Hitch monitoring and tagging the
Hitch spawning and migration. This is a large step in obtaining
the goal of Hitch recovery for the tribes. To see a presentation on work that was done and future planning,
please click on Hitch Presentation
Life Cycle of the Hitch
Adult members of the sub-species lavinia
exilicauda chi, which can reach a maximum length of 14 inches (in the case of
the noticeably larger females) and weigh a pound or more, spend most of their
time deep in the waters of
Clear
Lake, where as "filter feeders" they subsist primarily on plankton. It is said
to be
nearly impossible to catch them on a hook and line, and although they are
occasionally caught accidentally in the nets of commercial fishermen they are
otherwise seldom observed by human beings at all. But every spring for a few
weeks—or occasionally for a few months—these ordinarily invisible fish suddenly
emerge into view.
As the days start to lengthen and
temperatures warm, and the winter's rains
fill
the tributaries of the lake, schools of hitch
begin to move upstream to their
spawning grounds. The run can begin as early as the beginning of February, and
continue as late as May or even June, but "prime time" for hitch most often
comes in the month of
March. Schools of migrating adults were once almost unimaginably
abundant—numbering in the millions if not the billions—but have been greatly
reduced in
recent
years. When a gravid female finds a place
she likes—clean gravel bottoms and
shallow rapidly flowing water seem to be preferred though this preference is by
no means absolute—she begins to swish her body back and forth preparatory to
laying her eggs, though no nest is excavated. A cluster of males gathers around
her, eager to fertilize them.
The spawning adults splash vigorously, with parts of their bodies frequently
emerging from the water.
After spawning, the adults do not die as
salmon do, but instead make their way back to Clear Lake:
it is surmised that the females swim downstream immediately after spawning, but
that the males may linger in the creeks in hopes of finding another opportunity
to breed. Immediately after being laid the eggs absorb water, swell to about
four times their original size, and sink to the bottom, bound together in thick
masses of shiny golden jelly. The roe settles into crevices between t he stones,
and when conditions are right can be so abundant that the gravel bottom of the
creek is largely obscured. After five to ten days the eggs hatch out into tiny
fry that resemble mosquito larvae at first. They stay near the location where
they were spawned for another five to ten days, until they can swim well enough
to start moving downstream. The journey back towards Clear Lake takes several
weeks, and after reaching the lake the young fish stay near the shoreline for
another three months or so before heading out to deep waters, where they remain
until they reach breeding age and are ready to begin the cycle all over again.
For more information on the Clear
Lake Hitch
please visit the Chi Council
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