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Comment on BDCP:  Impacts to navigation and the impacts of "restoration" sites

     (Draft 5/13/14)  For over 10 years, under the umbrella of CALFED or other "restoration" and fish studies, different agencies have been conducting studies in different areas of the Delta to test theories of why and where salmon migrate, why and where Delta smelt survive and what types of "restoration" is more likely to florish under what circumstances.  The problem is that the current public draft of the BDCP does not acknowledge the actual outcomes and effects of those fish studies and "restoration" bench test sites.  The planting of in waterways or along the banks FUNCTIONS to capture sediment in wateroutflow times.  The tules also capture non-native invasive plant species like egeria densa, which also functions to capture sediment.  These actions raise the bed of the waterway along its banks, so that the navigable waterway becomes more shallow over time.  As the waterway becomes more shallow, the water gets warmer, more logs and debris get stuck along the banks, further creating areas where shoals develop.  All of this creates hazards to navigation over time and also hinders flood protection flows, creating incidents of backflow that floods local properties.  While the stated purpose of the "restoration" bench tests are for fish habitat development, the result is that native fish habitat is degraded.  The degradation of native fish habitat effects the fish migration study outcomes, perhaps unknown to the fish scientists conducting the studies like the salmon outmigration tests and studies.  In other words, BDCP assumption for best science or restoration actions is based on only partially reported effects and outcomes, and the the bench tests and flow barrier tests conducted during the same time as the outmigration studies functioned to manaipulate the results of the studies to favor manmade channels instead of the natural and historic salmon migration pathways.  Perhaps the reason this was done was to validate year round diversion of Sacramento River water into manmade channels, taking away the flow from the natural channels.  Below are some of the graphics used for this comment section.  You can click on each one to view larger size and to see the online location where original graphic was found:


Tules consume more fresh water!

Look at the timing:  in 2002-2003 DBW went through the process to get permits to treat egeria densa all over the Delta.  THEREAFTER DWR and CALFED reduced water flows in the Delta, created experimental "bench tests" and planted tules and other water plants which resulted in the impacts to the Delta as shown below.  Several times I observed that the DWR "media tours" did NOT show the real impacts but instead showed the media sites where the invasive water weeds were moved out of the slough just before the media tour.  Falsifying the real impacts of the "restoration" sites example:  The Fall 2013 media tour of Prospect Island and Miner's Slough, where the invasive water weeds were shoved out into Cache Slough and away from Prospect/Miner's Slough just 2 days before the official media tour.  

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