HYDRO26976 - Laserfiche WebLink

Home Browse Search

COLORADO DEPARTMENT OF PUBLIC HEALTHAND ENVIRONMENT, Water Quality Control Division Rationale-Page 10 Permit No. CO-0032115 Table VI-6 -Monitoring Requirements for Outjalls OOl, 001, 005, 008, 009, 014, OIB, 022, 024 Parameter Measuremept Fre'auencv Sainbte Ti Flow, MGD Once per week Instantaneous or t TSS, mgA Once per month Grab pH,, s. u. Once per week In-Situ Oil and Grease, mgA Once per week Visual TDS, mgA Once per quarter Grab Table VI-7-Monitoring Requirements for Outjalls 012, 013, 015, 016 Flaw, MGD cntce per week tnstantaneous or t pH, s.u. Once per week In-Situ Oil and Grease, mgA Once per week Visual Monitoring reguiremenu are based on the previous permit. Additional Monitorinz: As described in section VI.A.I.d.i., a 12-rime analysis for several metals is needed to determine reasonable potential for several outfalls. The following table identifies the outfal[s and metals. The first sampling shalt occur during the first month after the permit becomes effective and sampling shall continue for the next eleven consecutive months, unless discharge does not occur during that first month. Ifno discharge occurs during a month, sampling shall begin (or resume) when discharge resumes and continue until twelve samples have been collected and analyzed using approved methods with method detection Jimits as low or lower than those specked in Part I.E.3. of the permit. If the perminee has a recent data base (1998 or more recent) that includes these parameters for one or mare outfalls, these previous data maybe included as applicable. For example, if the permittee has 8 recent data points for outfa1101 ]for one or more of the specked metals, they can obtain 4 additional data points by sampling monthly after the permit becomes effective, then submit the recent data with the new data. All raw data shall be submitted, not just summaries. Table VI-8 - TR Arsenic X TR Cadmium X Total Tri Chromium X TR Copper X TR Lead X TR Selenium X TR Zinc X C. Reporting 1. Discharge Monitorine Report: Trapper Mining, Inc. shall submit Discharge Monitoring Reports (DMRs) on a quarterly basis to the Division. The Division now requires atl permittees to submit DMRs monthly. These reports should contain the required summarization of the test results for parameters shown in Tables VI-S, VI-6, and VI-7 and Part 7.B.1 of the permit. See the permit, Part I.E.I. for details on such submission. 2. Additional Reporting: The results of the twelve-time analysis described previously shall be submined as required. 3. SS ecia~: Special reports are required in the event of a spill, bypass, or other noncompliance. Please refer to Part I E. of the permit for reporting requirements. As above, submittal of these reports to the US Environmental Protection Agency Region VIII is no longer required. D. Additional Terms and Conditions Last Revised: 4/29/2004