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CLEAN LAKES INC. o General Water Quality Sampling Methods: Water quality samples shall be collected from a depth of 1 foot below the water's surface. Samples to be analyzed in the laboratory will be stored in suitable containers provided by the laboratory. Field observations of weather conditions, floatables, oil /grease films and scum, water discoloration, algae and aquatic plant growth, and any presence of dead birds or fish shall be recorded on standard field forms. o General Water Quality Sampling Quality Assurance: To minimize the risk of contamination, the following protocols will be followed: a) Latex gloves will be worn during sampling of fecal coliform bacteria; b) Sample container labels will be filled out with permanent ink prior to attachment to the container; c) Sample labels will include: location, date, and time of sample collection. d) Sampling equipment such as a Kemmerer bottle will be rinsed with lagoon water from each sampling site prior to retaining the water sample from that site; e) Water samples for nutrient and bacteria analyses will be stored on ice in a cooler until delivered to the laboratory; and f) Container type and size, plus sample holding times, will adhere to the analysis laboratory's recommendations. o General Water Quality Monitoring Record Keeping and Reporting: The monthly record of aquatic pesticide application shall include the types of pesticides applied, their application rate and total volume applied, plus the locations of the applications. The San Francisco Regional Board requires that it be sent an annual report, and this report will also be sent to the San Mateo Countywide Stormwater Pollution Prevention Program. By combining the general water quality field data collected during October 1 through March 31 with the pre- and post - treatment pesticide monitoring data of April 1 through September 30, one annual report can be submitted that should satisfy the General Water Quality reporting requirements and the General Permit requirements. This report will include a letter of transmittal, a tabular summary of the laboratory analysis results, a tabular summary of the general water quality field measurements, and a map showing the locations of the sampling stations. In order to meet requirements for incorporation into the state's water quality database, the tables will include the following information: • pesticide application date; • sampling date; ▪ analysis date; • detection limits, • the name of the sample collector; • and the name of the laboratory performing the analyses. For comparison of laboratory results against the Redwood Shores Lagoon General Water Quality Objectives, water quality sampling will occur at five (5) points (Sites R -1 2011 Redwood Shores Lagoon Water Quality Monitoring Proposal Page 11 of 18 General Services Agreement between the City of Redwood City and Clean Lakes, Inc. - Exhibit A 07/01/2011 Page 7 of 13