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ATTACHMENT D D. In the event that the surface water body has inadequate depth or flow to measure 'in- stream', a representative sample should be taken into a sample container and then measured on site using the appropriate instrument. E. The portable Dissolved Oxygen(DO)meter must be calibrated prior to its use in the field. F. All maintenance and calibration records are maintained and stored in the OSC laboratory to insure instrumentation accuracy. G. Results, sample locations notes, and other observations are recorded in a field notebook. Grab samples are collected from each site for laboratory analysis of fecal coliform, enterococcus, and ammonia. Fecal coliform, enterococcus and ammonia samples are assigned chain of custody forms that are completed throughout the sampling, analysis, and reporting process. DO and temperature are completed in the field and do not require a chain of custody. H. A visual assessment of detrimental impacts such as fish kill, odor, and presence of visual spill material will be conducted and recorded in the field notebook. Site phots shall be taken of the sampling locations from two vantage points, at approximate right angles to each other. The individual taking the samples shall either take the phots directly, or mark the location so that photos can be taken at a later time by utility division personnel. I. The visual assessment should also include an estimate to determine the rate of flow in the surface water. The estimate shall be made by either observing floating debris or by dropping adjacent vegetation into the stream and recording the distance traveled in 5 or 10 second intervals. The average cross section of the water body shall also be measured and recorded in the area where the velocity data is observed. The observed velocity and measured area shall be reported in the field notebook. The estimated flowrate(Q=V*A) shall be reported in the final technical report for the spill. The flowrate shall be estimated and incorporated into the final technical memorandum by the Utilities Division Superintendent. J. Additional samples are taken each day for a total of ten days. II. WATER QUALITY REPORT A. For a Major Spill, the first week of daily water quality monitoring results is reported to the applicable Health Department within five days of completion of these samples. The results are transmitted by the Environmental Services Manager. B. When all ten days' worth of laboratory results are available, the Environmental Services Manager shall incorporate the data into the Technical Report discussion and include the laboratory data in the Stream Monitoring Program Report Form for a Major Spill Event. 52IPage