Test Results for the Deca (Cone) Splitter

In Reply Refer To:                                January 28, 1993
Mail Stop 415




OFFICE OF SURFACE WATER TECHNICAL MEMORANDUM NO. 93.10

Subject:  Test Results for the Deca (Cone) Splitter

The deca (cone) splitter was authorized for use in the Water 
Resources Division by Office of Water Quality (OWQ) Technical 
Memorandum No. 80.17.  That memorandum included some test data 
based on clear water.  The Branch of Quality Assurance recently 
conducted some additional tests including the use of sediment and 
summarized all results to date.  A copy of the test results and 
analysis are attached for your information.

The results indicate that the water and sediment splits usually 
are of acceptable accuracy but that some splitters may have 
individual ports that deliver more or less than the desired amount 
of material.  The data reaffirm the need for involved technical 
personnel to familiarize themselves with the individual instrument 
by running a series of tests to determine any bias that can result 
from instrument imperfection or operator procedures.  The test 
procedures that should be followed in these tests are outlined in 
OWQ Technical Memorandum No.J80.17.

The Office of Surface Water strongly encourages field tests of 
deca splitters used in surface-water projects.




                                 Charles. W. Boning, Chief
                                 Office of Surface Water

Attachment

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