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<br /> <br />Part I <br />Page lk of 19 <br />Permit No. CO-0032115 <br /> <br />B. MONITORING REQUIREMENTS <br />11. Control Program <br />If required pursuant to Part I.B of this permit, the permittee shall <br />develop a control program to eliminate WET, through the identification - i;. <br />and elimination of any toxicants or toxicant sources responsible for <br />WET, or through the identification of toxicant treatability -,;' <br />processes. The control program, along with any cost/benefit analysis ''C" <br />to determine whether the costs of construction bear a reasonable ,~, <br />relationship to the resulting benefits, shall be submitted within the , <br />specified time frames. Such cost benefit analysis shall be used in <br />accordance with Section 25-8-503(8) and (9), C.R.S. The control '~;`~' <br />program, as submitted to or revised by [he Division, may be „4:;` <br />incorporated into the permit. <br />A control program may include, but shall not be limited to: <br />additional pretreatment requirements imposed on specific indirect <br />permittees by POTW's, modification of internal source control programs <br />by industries, modifications of treatment plants, and/or best <br />management practices for spills, leaks, etc. <br />l <br />12. Toxicity Incident Closure <br />If WET is controlled through implementation of numeric limits for <br />specific toxicants, through a control program eliminating toxicants <br />from the waste stream, or through the implementation of treatment <br />processes, or if WET disappears and Division required accelerated <br />testing demonstrate the continued absence of toxicity, the toxicity <br />incident shall be considered closed. <br />If the permittee completes all required phases of the toxicity <br />incident response specified in compliance schedules, and is unable <br />either to identify the causative toxicants and their sources or to <br />identify feasible treatment options, the permittee may peCition the <br />Division for relief from further investigation and testing, consistent <br />with the permit regulations. <br />J Revised 5/2/89 <br />Doc 1003M <br />