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PARTi <br />Page 11 <br />Perini[ No. CO-000022] <br />.A. TERMS AND CONDITIONS <br />4. Wlrnle F.fnnrnt Tnzirtty TxYing R~gntrnmrnlc ( rr _ ()trt}' 11 n02,tJ111~ nos _Qtl( nl n a d nl l (rnn~rlt <br />g. Tnzirity Rend Srrr <br />This permit may be reopened and modified (following proper administrative procodtttes) to include new compliance dates, <br />additional or modified rtttmerical permit limitations, a trees or differem compliance schedule, a change in the whole <br />efftuem toxicity testing protocol, or any other conditions related to the control of mxirznts if one or more of the following <br />events occur: <br />i. Toxicity has been demonstrated in the effluent and the permit does not contain a toxicity limitation. <br />ii. The PTl(I'IE results indicau that the toxicant (s) represem pollutam(s) that may be controlled with specific numerical <br />limits, and tite Division agrees that the numerical controls aze the most appropriate course of action. <br />iii. The PTUfIE reveals other unique conditions or characteristics which, in the opinion of dte Division, justify the <br />incorporation of unanticipated special conditions in the permit. <br />$, Whole Rfllnenf Toxicity T _ ino Rrq rirrmrnt<_(J"hrnnir) - Chrtfallc (N1d anrf MIR <br />a, TPCfing and Rep~rgng Rrgt~irrm ntc <br />Teats chat) hr done at the fregnen idrd in Panr LR_t. Test results shall be repotted on the Discharge Monitoring <br />Repon (DMR) submitted for the reporting period during which tite sample was taken. (i.e., WET testigg results for the <br />first calendar quarter ending March 31 shall be repotted with the DMR due Apri128J The results shall be submitted on <br />• the Chronic Toxicity Test repon form, available from the Division. Copies of these reports are to be submitted to both <br />the Division and EPA along with the DMR. <br />The permittee shall conduct each chronic WET test in general accordance with methods described Chnn Tarn, Mr bode <br />for Fcrimatin~a the ('hrnnir Tnziciry of Fffinrnrc and Receivin9rs Watrrs rn Frechwaror nrganicmc, EPA/600(489lOOl or <br />the most currem edition, except as modified by the most current Division guidance documen[ entitled (:~ridel;nee far <br />f'nndnrting Whole Fffinrnr Tn:ic;ty Tssts. The permitter shall conduct such tesu using Ceriodaphnia dubia and fathead <br />minnows. <br />b. Faihve of Tect and Divicinn Notification <br />Beginning on the effective date of the limitation, a chronic WEI' us[ is failed whenever there is a statistically significant <br />difference in lethality between the control and any effluem concentration less than or equal to the instream waste <br />concentration ("IVVC"). The seasonal RVCs for ourfalls 001 and Q78 are shown in Fan I.A.I.f. 'itte perminee must <br />provide written notification of the failure of a WET us[ to the Division, along with a statement as m whether a <br />Preliminary Toxicity Investigation ("PTT")/toxicity Identification Evaluation ("TIE") or accelerated testing is being <br />performed. Notification must be received by the Division within 21 calendar days of the demonstration of chronic <br />WET in the routine required test. 'Demonstration' for the purposes of Paru I.A.S.b., c., d. and f. means no later than <br />the last day of the laboratory test. <br />c. Arrtnmatir (mm~rlianre Schedule ! innn Failure of Tect <br />If a routine chronic WET test is failed, the following automatic compliance schedule shall apply. As pan of [his the <br />petlnittee shall eidter: <br />i. proceed to conduct [he PTIlI'IE investigation as described in Pan I.A.S.d, or <br />• ii. conduct accelerated usting using the single species found m be more sensitive. <br />Corrected <br />