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Honeywell Groundwater Remediation Industrial Wastewater Discharge Permit page 2 of 39 <br />a.Daily Maximum Limit means the maximum allowable discharge limit of a pollutant during <br />a calendar day or any 24-hour period that represents a calendar day. Where Daily Maximum <br />Limits are expressed in units of mass, the daily discharge is the total mass discharged over <br />the course of the day. Where Daily Maximum Limits are expressed in terms of a <br />concentration, the daily discharge is the arithmetic average measurement of the pollutant <br />concentration derived from all measurements taken that day. In the case of samples <br />collected by the grab method, the daily maximum shall be applied as an Instantaneous <br />Maximum Allowable Discharge Limit or as an Instantaneous Minimum Allowable <br />Discharge Limit as follows: <br />i.Instantaneous Maximum Allowable Discharge Limit – shall mean the <br />maximum concentration or loading of a pollutant allowed to be <br />discharged at any time, determined from analysis of any discrete or <br />composite sample collected, independent of the industrial flow rate and <br />the duration of the sampling event. <br />ii.Instantaneous Minimum Allowable Discharge Limit – shall mean the <br />minimum concentration of a pollutant allowed to be discharged at any <br />time, determined from analysis of any discrete or composite sample <br />collected, independent of the industrial flow rate and the duration of the <br />sampling event. The lower pH limit is applied as an Instantaneous <br />Minimum Allowable Discharge Limit. <br />b.Monthly Average Limit means the maximum allowable average of daily discharges over a <br />calendar month, calculated as the sum of the concentrations of all daily discharges measured <br />during a calendar month divided by the number of daily discharges measured that month. <br />c.Prohibited: No permittee shall introduce or cause to be introduced certain pollutants, <br />substances, or wastewater into any public sewers, directly or indirectly into the POTW <br />including, but not limited to gasoline, benzene, naphtha, fuel oil or other pollutants which <br />create a fire or explosive hazard to the City’s sewer system or POTW. <br />d.* Closed Cup Flashpoint: this parameter must be monitored using the test methods <br />specified in 40 CFR 261.21