Laserfiche WebLink
PART I <br />Page 32 of 56 <br />C00032115 <br />The permittee shall install, calibrate, use and maintain monitoring methods and equipment, including biological <br />and indicated pollutant monitoring methods. All sampling shall be performed by the permittee according to <br />specified methods in 40 C.F.R. Part 136; methods approved by EPA pursuant to 40 C.F.R. Part 136; or methods <br />approved by the division in the absence of a method specified in or approved pursuant to 40 C.F.R. Part 136. <br />The permittee may use an equivalent and acceptable alternative to an EPA -approved method without EPA review <br />where the requirements of 40 CFR Part 136.6 are met and documented. The permittee may use an Alternative Test <br />Procedure (ATP). An ATP is defined as a way in which an analyte is identified and quantified that is reviewed and <br />approved by EPA in accordance with 40 CFR Part 136.4 for nationwide use, or a modification to a 40 CFR 136 <br />approved method that is reviewed and approved by EPA in accordance with 40 CFR Part 136.5 for limited use. <br />a. The permittee must select a test procedure that is "sufficiently sensitive" for all monitoring conducted in <br />accordance with this permit. <br />b. The PQLs for specific parameters are listed in tables. <br />c. If the permit contains an interim effluent limitation (a limit is report until such time as a numeric effluent <br />limit becomes effective) for a parameter, the final numeric effluent limit shall be considered the AWQC for <br />the purpose of determining whether a test method is sufficiently sensitive. <br />d. When the analytical method which complies with the above requirements has an ML greater than the permit <br />limit, and the permittee's analytical result is less than the ML, the permittee shall report 'BDL" on the DMR. <br />Such reports will not be considered as violations of the permit limit, as long as the method is sufficiently <br />sensitive. For parameters that have a report only limitation, and the permittee's analytical result is less than <br />the ML, (where X = the ML) "< X" shall be reported on the DMR. <br />e. In the calculation of average concentrations (i.e. 7- day, 30 -day average, 2 -year rolling average) any <br />individual analytical result that is less than the ML shall be considered to be zero for the calculation purposes. <br />When reporting: <br />If all individual analytical results are less than the ML, the permittee shall report either "BDL" or "<X" (where <br />X = the ML), following the guidance above. <br />If one or more individual results is greater than the ML, an average shall be calculated and reported. Note <br />that it does not matter if the final calculated average is greater or less than the ML, it must be reported as a <br />value. <br />Table Practical quantitation limits - Metals, inorganics, nutrients, radiological parameters, and nonylphenol <br />