AgdaPkt 2016-02-22 Closed and Interview and Joint SA PFA

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City of Redwood City, Public Works Division Initial Study & Mitigated Negative Declaration Document Date: October 15, 2015 Revision Date: January 25, 2016 Page 9 Blankinship & Associates, Inc. 1.5 Standard Operating Procedures The City implements an Integrated Pest Management (IPM) program for algae and aquatic weed control. The IPM program involves scouting for algae and aquatic weed presence in the Lagoon to determine if the locations and densities exceed or are likely to exceed treatment thresholds. If algae or aquatic weeds are present in locations and densities that exceed thresholds above which control is needed, the City may make applications of copper- containing aquatic herbicides on an “as-needed” basis to achieve the aquatic weed control necessary to maintain the system’s design capacity and flow, or prevent nuisance conditions due to odors or mosquito-breeding habitat. Prior to application copper-containing aquatic herbicides, the following tasks will be accomplished: 1. A written recommendation is prepared by a DPR-licensed Pest Control Advisor (PCA). A PCA undergoes 40 hours of training every 2 years on issues including health and safety and prevention of exposure to sensitive receptors. The written recommendation prepared by the PCA must evaluate proximity of occupied buildings and people, health and environmental hazards and restrictions, and a certification stating that alternatives and mitigation measures that substantially lessen any significant adverse impact on the environment have been considered, and if feasible, adopted. Refer to Appendix C. 2. All City or contractor personnel applying herbicides review and strictly adhere to the aquatic herbicide product label that has clear and specific warnings that alert users to hazards that may exist. An example of a specific product label for an herbicide that contains copper is included in Appendix D. 3. All City or contractor personnel applying herbicides review and consult the aquatic herbicide Material Safety Data Sheet (MSDS) (an example is provided in Appendix D), and the DPR Worker Health and Safety Branch Pesticide Safety Information Series (PSIS). The PSIS and the MSDS have specific information that describes precautions to be taken during the use of the aquatic herbicide. 4. The condition of the area(s) of the lagoon being treated is field-evaluated to ensure that the application is necessary, feasible, and can be conducted safely and according to label. This evaluation considers target weed or algae species, level of infestation, water and flow conditions, alternate control methods, and amount of aquatic herbicide to be applied. 5. Notifications, as needed, are sent to the potentially affected public agencies and the California Department of Fish and Wildlife (CDFW). 6. Prior to an application, City or contractor personnel inspect and seal any emergency spill structures, as necessary if control structures are leaking. The City or contractor will coordinate with pump operators to confirm that pumps, if present, will remain off during application. 6.3.A. - Page 17