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Agreement Exhibit A <br />In the event that the Consultant is unable to contact the City within 24 hours, the <br />Consultant shall notify the Department of Public Health, Drinking Water Field <br />Operations Branch, Santa Ana District, at (714) 558 -4410. <br />Upon detecting that a routine or repeat sample is total coliform positive, the <br />Consultant shall perform a fecal coliform test. <br />The Consultant shall, within twenty -four hours after notifying the City that a single <br />routine sample is total coliform positive, collect three repeat samples. One shall <br />be from the same total coliform positive sample point. The other two locations <br />shall be determined by the City, one to be located within five service connections <br />upstream and the other within five service connections downstream of the total <br />coliform positive sample point. <br />If total coliforms are detected in any repeat sample, the Consultant must within <br />twenty -four hours, after notifying the City that a repeat sample is total coliform <br />positive sample, collect another set of repeat samples from the same locations. <br />(ii) Water Mains or System Repairs :Samples shall be collected by the City in <br />appropriate sterilized bottles provided by the Consultant to which a chlorine <br />reducing agent had been properly added. Sampling may consist of two samples <br />per month and shall be picked up by the Consultant at the City Corporate Yard <br />Meter Shop within twelve hours of notification, The Consultant shall notify the <br />City of the results by fax within four hours of the completion of the test. <br />(iii) Wet/s:Samples shall be collected by the City in appropriate sterilized bottles <br />provided by the Consultant to which a chlorine reducing agent has been properly <br />added. Sampling shall consist of twenty samples per month and shall be picked <br />up by the Consultant at the City Corporate Yard Meter Shop within twelve hours <br />of notification. <br />(iv) Customer ComWa7nt Samples shall be collected by the City in appropriate <br />sterilized bottles provided by the Consultant to which a chlorine reducing agent <br />has been properly added. Sampling may consist of four samples per month and <br />shall be picked up by the Consultant at the City Corporate Yard Meter Shop <br />within twelve hours of notification. <br />3. HETEROTROPHIC PLATE COUNT <br />Routine samples shall be collected by the Consultant in appropriate sterilized bottles to <br />which a chlorine reducing agent has been added on a weekly basis at the same time <br />and at the same 50 designated sample points. Consultant shall use the necessary <br />dilutions to report the results at concentrations up to 500 colony forming units per <br />milliliter. <br />4. TOTAL CHLORINE RESIDUAL <br />Routinesamples shall be field analyzed by the Consultant on a weekly basis at the <br />same time and at the same 50 designated sample points. DPD method of analysis and <br />the reading shall be made by the means of a colorimeter. Color disc is not acceptable. <br />Results must be reported to 0.1mg /I. Colorimeter must be calibrated per the <br />manufacturer's requirements. Documents showing the calibration shall be provided <br />upon request. <br />RFP #14-017— Water Quality Sampling & Testing Services <br />Page 11 <br />25D -19 <br />