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We are also concerned with any sampling frequency that would allow non-representative <br />analysis of discharges that occur within a given sampling period. For example, if a <br />sampling period is to be weekly, and five manually-operated discharges occur that week, <br />we do not feel that taking a sample from only one of these discharges would be <br />representative of the discharges that occurred during that week, as manual discharges <br />are not designed to meet any effluent limitations. Likewise, if a sampling period is to <br />be monthly, and twenty-five manually-operated discharges occur during that month, we <br />do not feel that taking one sample during that month, or even one per week during that <br />month, would be representative of the discharges that occurred that month, as, again, <br />manually-operated discharges are not designed to meet any effluent limitations. We <br />believe that every time amanually-operated discharge occurs, it should be sampled and <br />analyzed for compliance. <br />Thank you for providing the Division of Minerals and Geology with the opportunity to comment on <br />these materials. If there are any questions, please contact us. <br />Sincerely, <br />,,~c~~~ <br />Dantel I. Hernandez <br />Senior Environmental Protection Specialist <br />cc: Erica Crosby <br />Kent Gorham <br />Susan McCannon <br />Byron Walker <br />m:bss\j rcUubicli r.d ih <br />