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3 PESTICIDE SAFETY <br />Successful weed management begins with an understanding of the tazget plant species and the <br />environment within which it grows. Next, the herbicide's physiologic affects on plant growth and <br />development must be understood. Understanding a pesticide's chemical nature is also important in <br />minimizing impacts to non-tazget species, the applicator, endangered species and pollinators, as well <br />as surface water runoff hazazds and leaching into groundwater. <br />Al] pesticides must be handled with care and applied by qualified personnel. PRODUCT LABELS <br />WILL BE READ BEFORE USE AND HANDLING AND APPLICATION DIRECTIONS <br />WILL BE FOLLOWED, Properly identifying the weed problem and the most effective chemical <br />control method for use during the plant growth cycle is critical to effective weed control. Equipment <br />will be properly calibrated before the pesticide is applied. Special protective clothing is usually <br />specified on the label and appropriate Personal Protective Equipment (PPE) will be used. Empty <br />herbicide containers will be disposed of promptly, safely and in accordance with labeling. <br />Herbicides vary in the amount of time after an application before it is safe to reenter the treated area <br />without protective clothing and equipment. The Restricted Entry Interval ("REI") is affected by the <br />rate of application, size of the area treated and the amount of time to be spent in the field. The REIs <br />listed on each herbicide's label will be followed. <br />Herbicide used at the Edna Mine will be stored in compliance with all federal, state, and local <br />regulations as well as label requirements. In general, herbicides will be stored in a secure area, <br />capable of protecting them from temperature extremes, moisture and sunlight. All herbicide <br />containers will be properly labeled at all times. <br />Appropriate herbicide application records will be maintained for the United States Department of <br />Agriculture ("USDA") and the Colorado Department of Agriculture ("CDA"). If restricted use <br />pesticides aze applied, the USDA requires private pesticide applicators to keep a record of their <br />applications. If a commercial applicator applies a pesticide, the CDA requires that applicator to <br />maintain records of both general use and restricted use pesticides. Records must be retained by the <br />applicator for two (2) yeazs from the date of application. The required information must be recorded <br />within 14 days following the pesticide application. Record keeping books are available through the <br />Environmental and Pesticide Education Office of Colorado State University. <br />P&M Edna Mine 9 02/24/06 <br />