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TABLE 1 <br />DISCHARGE LIMITATION <br />Discharge Limitation <br />Effluent Parameter (Daily Maximum Concentration) Sample Type' <br />Flow, MGD Repon' lnstantaneous or Continuous <br />pH, standard units 6.5-9.0 Grab <br />(minimum-maximum) <br />Oil and Greaze (mg/I) 10' Visual' <br />(no visible sheens) <br />Settleable Solids (mg/I)' 0.5 Grab <br />' Definitions of Sample Type <br />A "grab" sample, (or monitoring requirements, is a single "dip and take" sample. <br />An "instantaneous" meazuremen[, for monitoring requirements, is a single reading, observation, <br />or meazuremen[ performed on site. <br />A "continuous" meazurement, for flow monitoring requirements, is a measurement obtained from <br />an automatic recording device which continually measures flow. <br />A "visual" observation, for oil and grease monitoring requirements, is observing the discharge to <br />check for the presence of a visible sheen or Floating oil. <br />- Monitoring only as required by Part I.B.Z.b. <br />In the even[ an oil sheen or Floating oil is observed, a grab sample will be collected, analyzed, and <br />reported. In addition, corrective action will be taken immediately to mitigate the discharge of oil and <br />greaze. <br />° Procedure for determining settleable solids is contained in 40 CFR 434.64. The method detection limit <br />for measuring settleable solids under this part will be 0.4 ml/l. <br />Sources: Colorado Department of Health, 7/8/9? and 40 CFR Part 434.64. <br />