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Ceuu a Page lj of 19 Permit No. N--0033367 B. MONITORING RDQ(TII2FSIINIS 7. FYequencY and Sample Type - Acute WET Testing Quarterly test results shall be reported along with the Discharge Monitoring Report (D~IIt) submitted for the end of the repartisx7 calendar quarter (i. e., WET testing results far the calendar quarter erdixxg March 31 shall be reported with the IIgt due April. 28, with the L~anairrizr3 WET testirg reports sut~itted with Cl4lis due each July 28, October 28 and January 28). The results shall be sukaaitted on the Acute Toxicity Vest report form, available fran the Division. Copies of these reports are to be submitted to both the Division aryl EPA. The permittee shall crnduct eadi acute WET test in general ao~rdance with methods described in the Division guidance doa~ent entitled Guidelines for Conducting Whole Effluent Toxicity Tests. 'lhe permittee shall conduct an acute 48-hour WEP test using Ceriodaphnia sp., and an acute 96-hour WET test using fathead minnows. Acute tests will be replaoear~t static tests of a sirxlle effluent grab sample. 8. Accelerated Testing If an individual toxicity test shows toxicity at arty concentration less than or equal to the following Instream Waste Cbnoentsation (IWC) or if 50: species mortality in any dilution (including 100$ effluent) is detected in any aorta WET test conducted in aooc¢dame with this permit, the peraittee shall rloti.f~ the Division verbally within 24 hags aryl in writing (date of receipt) within 5 days of reoeigt of written lab test results and proceed with the following compliance schedule. Discharge Point IWC ' 002 & 005 10.4 3 Within 7 days of beocmirfg aware of the toxidty, the permittee shall . then begin weekly axelerated testin7 of the disd~arge with whichever species has proven (thrwc~ the first instance of toxicity) to be the most sensitive. 'Ihe permittee will curttirntta such testing with one species until 2 oonsewtive weekly tests demorLStrate aorta toxicity, 2 consecutive weekly tests demonstrate no acute toxicity or a maxinnmm of 5 weekly tests have been o~nducted. If no aorta toxicity was demonstrated in the 2 oonsecutive weekly tests or in 3 of the 5 weekly tests, the permittee shall restane routine quarterly testing. In all other cases, a pattern of toxicity has been demcrostrate3 aryl the permittee shall proc.~eed with the Preliminary Toxicity Izivestigation. When a pattern of toxicity is demonstrated, the permittee shall orally notify the Division within 24 hours of beoaning aware of the test result which demonstrates the pattern of toxicity and in writing within 5 days (date of receipt) - after receiving the written lab test result which demonstrates the pattern of toxicity.