Current through Register Vol. 48, No. 51, June 17, 2024
Part 7049.0540 - MONITORING FOR BASELINE MONITORING REPORTA. Monitoring for the baseline monitoring report must be performed according to this part.B. The industrial user shall take a minimum of one representative sample to compile the data necessary to comply with this part.C. Samples must be taken immediately downstream from pretreatment facilities, if they exist, or immediately downstream from the regulated process if no pretreatment exists. If other wastewaters are mixed with the regulated wastewater prior to pretreatment, the industrial user shall measure the flows and concentrations necessary to allow use of the combined waste stream formula under part 7049.0350 in order to evaluate compliance with the categorical pretreatment standards.D. Sampling and analysis must be performed according to Code of Federal Regulations, title 40, part 136, as amended. If Code of Federal Regulations, title 40, part 136, does not contain sampling or analytical techniques for the pollutant in question, or if the Environmental Protection Agency regional administrator determines that the Code of Federal Regulations, title 40, part 136, sampling and analytical techniques are inappropriate for the pollutant in question, sampling and analysis shall be performed by using validated analytical methods or any other applicable sampling and analytical procedures, including procedures suggested by the POTW authority or other parties, approved by the Environmental Protection Agency regional administrator.E. The control authority may allow the submission of a baseline report that uses only historical data as long as the data provides information sufficient to determine the need for industrial pretreatment measures.F. The baseline report shall indicate the time, date, and place of sampling, and methods of analysis, and shall certify that the sampling and analysis is representative of normal work cycles and expected pollutant discharges to the POTW.Statutory Authority: MS s 115.03