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• P~ I <br />Page 9 of 40 <br />Permit No.: CO-0034665 <br />C <br />Specific Limitations and Self-Monitoring Requirements <br />2. Self-Monitoring Requirements (Outfall 001 only) <br />As a minimum, upon the effective date of this permit, <br />the following constituents shall be monitored at the <br />frequency and with the type of measurement indicated; <br />samples or measurements shall be representative of the <br />volume and nature of the monitored discharge. If no <br />discharge occurs during the entire monitoring period, it <br />shall be stated on the Discharge Monitoring Report Form <br />(EPA No. 3320-1) that no discharge or overflow occurred. <br />Effluent Charac teristic Frequencv Sample Tune a/ <br />Flow, mgd ~/ Weekly Instantaneous <br />Total Suspended Solids, mg/L Monthly Grab <br />pH, s.u. Monthly Instantaneous <br />Oil and Grease, visual ~/ Weekly Visual <br />Total Dissolved Solids, mg/L ~/ Quarterly Grab <br />The sampling point for discharges from Outfall 001 is to be <br />in the channel immediately after a point where discharges <br />from the gravel pit pond and the processing st orm water oil <br />and grease pond mix. <br />See Footnotes, Page 12. <br />