| Area   | 
         Lower Garcia / Estuary  | 
     
     
         | Topic | 
         Sediment: Allen Creek - Percent Fines <5.6 mm, McBain&Trush 1999 | 
     
 
 
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   Caption:  Allen Creek percent substrate <5.6 mm is shown on this chart based on dry-sieve sampling data from McBain and Trush (2000).  The Garcia TMDL threshold of 30% for sediment less than 6.4 mm refers to wet sieve samples. To make wet and dry samples comparable, the reference value shown is adjusted to 26% by the IFR KRIS project using methods of Shirazi and Seim (1979). The high amount of small gravels and sand (<5.6 mm) creates impaired conditions for salmonid spawning at these sites. See InfoLinks for more information.
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 Chart Table web page.
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 fines_085_allen_mcbaintrush.dbf (size 2,257 bytes)  .
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 Source Table web page. To download the table with the chart's source data, click 
 sed_mcbain_site.dbf (size 16,039 bytes)