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City of Redwood City, Public Works Division Initial Study & Mitigated Negative Declaration <br />Document Date: October 15, 2015 <br />Revision Date: January 25, 2016 Page 38 Blankinship & Associates, Inc. <br /> <br />personal protective equipment (PPE) needed for the safe handling of aquatic herbicides, <br />including goggles, disposable coveralls, gloves and respirators. <br /> <br />6. The condition of the portion of the Lagoon being treated is field-evaluated to ensure that <br />the application is necessary, feasible and can be conducted safely and according to <br />label. This evaluation considers target weed species, level of infestation, water and flow <br />conditions, alternate control methods, and amount of aquatic herbicide to be applied. <br /> <br />7. Prior to an application, City or contractor staff will confirm no water is being pumped out <br />of portions of the lagoon being treated. <br /> <br />8. The location(s) at which the aquatic herbicide is introduced into the water is staffed until <br />the application is complete. City or contractor staff performing inspections are in <br />continuous cell phone or radio contact with staff making the application. In the event that <br />a pump is accidentally turned on during an application event, addition of aquatic <br />herbicide stops. Not until the pump is turned off does aquatic herbicide application <br />resume. <br /> <br />By following the manufacturer’s label and MSDS directions, and federal, state and county <br />transportation, handling and disposal requirements, the City and its contactors will minimize <br />the risk of any spill, upset or accident conditions that would cause a hazard to the public or <br />the release of hazardous materials into the environment. <br /> <br />Item c): Less Than Significant Impact. There are schools located within ¼ mile of locations <br />were applications may be made. However, applicators will be present at the herbicide <br />application sites and will not let unauthorized people (including students) near herbicide <br />application equipment. Herbicide applications do not result in a release of copper to the air so <br />no airborne risk is present. Once copper has been applied to the water, there are no <br />restrictions on contact with the water. <br /> <br />Item d): No Impact. The Project sites are not listed on any hazardous waste site lists compiled in <br />Government Code Section 65962.5. <br /> <br />Items e) & f): No Impact. Although the Project site is located within the boundaries of the San <br />Carlos Airport comprehensive airport land use plan, the Project will not result in a safety <br />hazard for persons using the airport or for persons residing or working in the project area <br />because herbicide application activity is conducted on the water and away from residents or <br />airport users. The Project will not result in a release of a hazardous material that could <br />migrate from the project site to the airport for the same reason as previously stated. <br />Applications of herbicides will be made consistent with the product label and only when <br />weather conditions and application techniques will not result in spray drift. Further, <br />applications may be made by sub-surface injection or by using a surface spray with medium <br />to coarse droplet size to prevent off-site drift. Once a herbicide has been applied to the water, <br />there are no restrictions on contact with the water and so no unacceptable hazard is posed to <br />swimmers. <br /> <br />Item g): No Impact. The Project will not impact emergency evacuation routes because public <br />roadways are not be affected by the Project. <br /> <br />Item h): No Impact. The Project will not increase fire hazards at the Project sites. Truck access <br />6.3.A. - Page 46