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<br />0.14 NTU would be reported as a 0.1 NTU reading. The reporting forms require that the <br />maximWTI and minimwn turbidity readings be rounded to the nearest 0.01 NTU and that <br />the percentage above 0.1 NTU can be rounded to the nearest 0.1 percent (4) Figures 14 <br />and 15 depict the filtered water turbidity and the percent frequency occurrence, <br />respectively. <br /> <br />Figure 14: Filtered Water Turbidity <br /> <br />. ... <br /> <br />Brown County WID No.1 <br />Maximum Dally Filtered Water Turbidity <br /> <br />. 'It <br /> <br />S' <br />.. <br />e <br />~ t.u.. <br />;; <br />~ <br />.. <br /> <br />..,.. <br /> <br />'.1" <br /> <br />..... <br />,.,,,,,, <br /> <br />un.,,, <br /> <br />'"'''''' <br /> <br />."..,,, <br />D. c.. <br /> <br />1111'''' <br /> <br />1111"" <br /> <br />'111"" <br /> <br />l <br /> <br />Figure 15: Filtered Water Turbidity in Percent Frequency <br /> <br />B row n Co u n ty W ID No.1' <br />Frequency Plot of Maximum Daily Filtered Water Turbidity <br />.... <br /> <br />........................................................................................................................................... <br /> <br />I" ........................................................................................................................................................ <br /> <br /> <br />... <br /> <br />.... <br /> <br />.... ..................... <br /> <br />..., .................... <br /> <br />'" <br /> <br />I~ <br /> <br />"" II'" "" ,." <br />Perceah,..r Readlacs <- T.r~lclIt1 Sk....... <br /> <br />.... <br /> <br />..." <br /> <br />C. Filter with Post-Backwash Performance <br />The program requires that plants generate a filter run profile for each filter at least once <br />each month, using a continuous online turbidity meter. The plant must record the data <br />using a strip chart, circular chart, or computer or other device capable of producing a <br />hard copy of the results. Data collected during the first 30 minutes of the filter run must <br />be recorded at one minute intervals and data collected dwing the rest of the run must be <br />