CORRESPONDENCE_1982-1983 - Laserfiche WebLink

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HONORABLE BOARD OF SUPERVISORS May 5, 1982 Page Three pH value goes up, the alkalinity of a solution increases; as the acidity increases, the pH goes down. We refer to lemons as having an acid taste, and in fact, their pH is measured at 2. 2 - 2. 4. The pH of ginger ale is measured at 2. 0-4. 0 because of dissolved carbon dioxide gas. The Forward, Inc. , site is prohibited from receiving materials less than pH3. The pH of grapefruit that we eat is 3. On the alkaline side of the pH scale, the Forward, Inc. , site is prohibited from receiving new materials with a pH higher than 11. The California State Park system has virgin wilderness soils that are pH 11. The Calgon detergent powder we use in our dishwasher machines is pH 12. What is hazardous is not as simplistic as some would have us believe. A common method of controlling ticks requires treatment of your pet by washing it with a 0. 5 percent water emulsion of malathion. To make this solution, you mix 1-1/2 teaspoons of malathion concentrate (57%) with 5 quarts of water. The Forward, Inc. , site is prohibited from receiving this wastewater because it exceeds the concentration limits for pesticides imposed on the site. A common pesticide used to combat ground beetles is FICAM(R) or 2,2-dimethyl 1, 3 benzodioxol-4-01 methylcarbamate, sold as a 76% wettable powder. It is applied to kill pests in stores, warehouses, hospitals, restaurants, food processing plants, nursing homes, and wherever needed. The pesticide label provides instructions for preparing the chemical for application at 0. 5% concentration of active ingredient. That requires the addition of two pounds of chemical to 40 gallons of water and spraying it around the infested area. The Forward, Inc. , site (Class II-1) is not permitted to receive this pesticide in the concentrations routinely used in stores, warehouses, hospitals, restaurants or food processing plants. Ordinary Stoddard solvent makes a good herbicide for controlling crabgrass, broad-leaved weeds and weed grass found along patios, walkways, and flowerbeds. Stoddard solvent is prohibited from disposal at the Forward, Inc. , site because its flashpoint exceeds the limits set by the State.