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COLORADO DF_Pr1RTMLNT OF HEALTH. Water Quality Control Division <br />Rariannle - Pa,1•c 1.4, Permit Nn. CO-0032638 <br />Monitoring requirenunts jor parameters monitored jor at Ourjalls 001, 002, 003, 004, and 005 in the previous <br />permit were retained in the proposed permit. Similarly, nwnitoring requirements forJlow, TSS, oil and <br />grease, pH, iron, and 7DS at Ourfall 006 in the previous permit were retained in the proposed permit. Due to <br />reported exceedances of the calculated water quality-based effluent limitations for potentially dissolved <br />manganese, and sulfate, monitoring frequencies have been established at a frequency of once/week Chronic <br />biomonitoring requirements art in accordance with Division policy. <br />C. Reporting <br />Discharge Monitoring Retwrt: Pittsburg & Midwvy must submit a Discharge Monitoring Report (D~J on a <br />monthly basis to the Division. T)tis report should contain the required srtrrunarization of the test resulu jor <br />parameters shown in Tables VI-7 and VI-8 and Parr I. B.1 of the permit. See the permit, Parr I.B. for derails <br />on such submission. <br />D. Additional Terms and Conditions <br />!. S,_gnatorv Requirements -Signatory requirements for reports and submittals are discussed in Part I, Saxton <br />D.1 of the permit. <br />a. Materrals Containment Plan: In December 1991, the pesmiaee updated an tngineued spill plan. An <br />update to the plan is required to be flied within 9D days oflht pomit tffetxive date, detailing all change <br />which have occurred since the original submittal If no changes have occurred, a letter to this effect is <br />required For spec fu• requiremaur, refer to Part I. E of the permit. <br />b. Comaliance Schedu/e: A compliance scludule was added to the permit since data shows that txceedancer <br />of potentially dissolved manganese and sulfate could occur. The schedule will require compliance by <br />January 1, 1995. <br />E. Waste Minirniurtian/PoUution PrcvtMlon <br />Waste minitzation and pollution prevention art mo terms that are becoming increasingly more common in <br />industry today. Waste minimization inchules reducing the amount of xnste at the source through dutnges to <br />industrial processes, and reuse and recycling of wastes jor thm original or some other purpose such as materials <br />recovery or enngy production. Pollution prevention goes hand-in-hand with xnste minitnizRtion. If the xnsu is <br />eliminated at the from of the line, it will not have to 6e treated at rite end of the Grte The direct benefus to the <br />industry are often significant -both in terms of increased profit and in public relations. <br />This program can affect all areas of process and xnste control with which your industry deals. Elimiruttion or <br />reduction of a xnstewvter pollutant can also result to a reduction of an air poGutam or a reduction in the amaum <br />ojhazardous materials that you have to handle and/or dispose of. <br />This discharge permit does not specifically dictate xttste minirnirvtion conditions at this time. We strongly <br />encourage the panuttee to develop a xvste mininuzation plan. Several industries have already devebptd plans <br />and found that implememation resulted in substantial savings. Both.the Colorado Department of Heahh and EPA <br />have irrfamation and resources available to help you ecplore this topic. <br />Drafter Alexander S. Michailidis (Science Applications Imernationa! Corporation <br />Date September 13, 1993 <br />PUBLIC N0T7CE COMMENTS <br />