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SPX CORPORATION ORDER R5-2019-0018 <br /> SPX MARLEY COOLING TECHNOLOGIES GROUNDWATER CLEANUP NPDES NO. CA0081787 <br /> Figure F-2 <br /> WET Accelerated Monitoring Flow Chart <br /> Perform Routine Chronic <br /> Whole Effluent Toxicity <br /> Monitoring <br /> TUc> 1? No <br /> (as 100/NOEC) No <br /> Yes <br /> Check to see if <br /> TUc<_ 1.3 Yes' < there is an Yes <br /> as 100/EC25)AND/OR Operational or Correct <br /> %effect<25%? sample Issue <br /> collection issue <br /> Noe <br /> In Compliance with Yes' <br /> Median Effluent <br /> Trigger? <br /> No <br /> Median Percent Yes Participate in Approved Toxicity <br /> Effect at 100% Evaluation Study or conduct <br /> Effluent<50% Toxicity Reduction Evaluation <br /> No <br /> Complete Toxicity Reduction <br /> Evaluation <br /> ' The Discharger may participate in an approved TES if the discharge has exceeded the chronic toxicity <br /> monitoring trigger twice or more in the past 12 month period and the cause is not identified and/or addressed. <br /> 2 The Discharger may elect to take additional samples to determine the 3 sample median. The samples shall be <br /> collected at least one week apart and the final sample shall be within 6 weeks of the initial sample exhibiting <br /> toxicity. <br /> 3 The Discharger may participate in an approved TES instead of a TRE if the Discharger has conducted a TRE <br /> within the past 12 months and has been unsuccessful in identifying the toxicant. <br /> ATTACHMENT F— FACT SHEET F-37 <br />