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• 2.05.6 (3 ) <br /> One of five methods is used to determine the flow at surface water <br /> monitoring stations. The following methods are utilized; 1) V- <br /> Notch weir; 2 ) corrugated metal pipe culvert utilizing pipe size, <br /> and velocity of flow; 3 ) regular channel shape utilizing cross- <br /> sectional area and velocity of flow; 4 ) timing flow into a bucket <br /> of known volume and; 5 ) estimate of flow based upon experience. <br /> The following table shows the flow monitoring method used at the <br /> monitoring stations based upon the above monitoring method numbers <br /> 1 - 5. <br /> Active Monitoring Stations Flow Monitoring Method <br /> B-1 Upper Bramiers Draw 3 - Regular Channel <br /> B-2 Lower Bramiers Draw 2 - Culvert <br /> N-1 Upper Naturita Creek 3 - Regular Channel <br /> N-1A Upper Naturita Creek 3 - Regular Channel <br /> N-2 Lower Naturita Creek 3 - Regular Channel <br /> H-2 Lower Broad Creek 3 - Regular Channel <br /> S-1 Section 33 Creek 3 - Regular Channel <br /> R-1 Reed Chatfield Ditch 5 - Flow Estimate <br /> SP-1 - SP-6 - All Springs 4 - Bucket <br /> Inactive Monitoring Stations Flow Monitoring Method <br /> • H-1 Upper Broad Creek 3 - Regular Channel <br /> C-1 Upper Center Creek 2 - Culvert <br /> C-2 Lower Center Creek 1 - Weir <br /> L-1 Upper Long Draw 1 - Weir <br /> L-2 Lower Long Draw 1 - Weir <br /> W-1 Upper Wickson Draw 3 - Regular Channel <br /> W-2 Lower Wickson Draw 1 - Weir <br /> Surface and underground water samples are collected in bottles <br /> supplied by the testing laboratory. Each water sample consists of <br /> three bottles, one unpreserved liter bottle and two 250 milliliter <br /> bottles, one preserved with nitric acid and one preserved with <br /> sulfuric acid. The bottles are shipped from the field to the <br /> testing laboratory in an ice filled cooler. <br /> Water samples from the bedrock wells and the alluvial wells are <br /> taken after the wells have been purged. At least three well <br /> volumes are evacuated in order to purge the wells in accordance <br /> with the following table: <br /> Well diameter: 3/4" 1" 1-1/2" 2" 4" 6" <br /> Gallons/lineal <br /> foot of water in well 0.023 0.04 0.09 0. 16 0.65 1.47 <br /> • <br /> 2 .05-35a April 1993 <br />