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~~ _ -__ ._--_ _._--. __~ PART II <br />Pa6e 8 <br />Permit No. CO-0038024 <br />B. MONITORING REQUIREMENTS <br />2. Rrpnrting nfData (continued) <br />Colorado Department of Health <br />WQCD-PE-B2 <br />4300 Chevy Creek Drive South <br />Denver, Colorado 80222-1530 <br />The fast duplicate signed copy of each dichage monitoring report (DMR) shall be submitted to the following agency: <br />U.S. Ehvuonmental Protection Agency <br />Water Management Division <br />NPDES Branch 8WM-C <br />999 18th Street, Suite 500 <br />Denver, CO 80202-2466 <br />The third and fourth copies are for the petmittee records. The Dischazge Monitoring Report forms shall be filled out accurately <br />and completely N accordance with requirements of Ibis permit and the instructions on the forms. An authorized person as <br />identified im part I.D shall sign them <br />3. AcnrwFTTSrti^9-nnrfan<noa,g9a,andmF <br />• (a) TPCtlr~anrl Rrl+nrting R^inirrmmtc <br />Tests shall be done at the frequency listed in Part I.B.1. Test results shall be reported along with [he Discharge Monitoring <br />Report (DMR) submitted for the reporting period during which the sample was taken (i.e., WET testing results for the first <br />calendaz quarter ending Mazch 31 shall be reported with the DMR due April 28.) The results shall be submitted on the <br />Acute Toxicity Test report form, available from the Division. Copies of these reports axe to be submitted to both the <br />Division and EPA along wiUl dte DMR. <br />The permittee shall conduct each acute WET test in general accordance with methods described in Methndc fnr Meaa,nnv <br />thr A me Tnxi iN of Ffil wore and R riving W trr t F chwat nd M a , EPA/600/4-90/027 Or ffie most <br />current edition, except as modified by the most current Division guidance document entitled t3,,;drhnec fnr ['nod„rKn° <br />Whnh Fft7nrnr Tnzic;ty Tecrc, The perrnittee shat! conduct an acute 48-hour WET test using 17Fianhnia Magna sp., and an <br />acute 96-hour WET test using fathead mianows. Acute tests will be replacement static tests of a single effluent grab sample. <br />(b) Faihrce of Test and Division NM;finaNnn <br />An acute WET test is failed whenever the LCso, which represents an estimate of the effluent concennation which is lethal to <br />50% of the test organisms in the time period prescnbed by [he [es[, is found [o be less than or equal [o I00% effuent. The <br />pennittee must provide written notification of the failure of a WET test to [he Division, along with a statement as [o whether <br />the Preliminary Toxicity Incident ("PTI")/Toxicity Identification Evaluation ("TIE") investigation or accelerated testing is <br />being performed (see next section). Notification must be received by the Division within 14 calendar days of the <br />demonsna[ion of acute WET in the routine required test. "Demonstration" for the purposes of Parts LB.4(b),(c),(d) and (f) <br />means no later than the last day of the laboratory test. <br />(c) Aninmatir f nn nlianre Cched de Tlnnn Faih,re of Tect <br />If a routine acute WET test is failed, the following automatic compliance schedule shall apply. As part of this, the permittee <br />shall either: <br />(i) proceed to conduct the PTUTIE investigation as described in Part LB.4.(d), or <br /> <br />