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• <br />• <br />• • . <br />_. <br />• <br />available for conversion to flashboard structures and for the replacement of existing <br />flashboard structures that are no longer functioning properly. <br />Conversion to Low Volume Irritation System Converting from high volume flood <br />(or seepage) irrigation to low volume microirngation conserves water improves <br />water quality. With micro -irrigation, water is distributed through a network of <br />u nderground pipe and above ground lateral tubing and applied directly to the soil <br />above the plant's root zone. Modifications to existing microirrigation systems that <br />can be expected to increase system efficiency and reduce offsite movement of <br />n utrients, pesticides, and sediment are also eligible. <br />Grade Stabilization This practice includes the use of structures, pipe, concrete, <br />rock, vegetation, synthetic fabrics, and other materials to maintain the stability and <br />integrity of soils in ditches, swales, water furrows, and other erosion prone areas. <br />This practice also includes equipment for chemical mowing of ditch banks to <br />promote the proliferation of grasses through the exclusion of higher growing weeds <br />and brush. <br />On -Site Water Detention/Retention This practice will provide for the attenuation of <br />both the rate and volume of off-site water and sediment discharge following heavy <br />storm events. The water may be stored for future use or released off-site later at <br />reduced discharge rates. <br />Permanent Aqrichemical Mixing/Rinsing Facility and/or Equipment Washdown <br />Facility This practice provides for the construction of a permanent facility to contain <br />and recover spillage or rinsate from a fertilizer or pesticide mix and load area or <br />from an equipment washdown site. It is intended to prevent fertilizer or pesticide <br />contamination of ground or surface waters. The facility may include a concrete <br />containment pad, pesticide storage building, sump/pump, rinsate tank, mixing tank, <br />holding tank, and removable or permanent roof. <br />Portable Agrichemical Mixing Station A portable device used in the field to prevent <br />u nintentional release of agrichemicals to the environment during mixing and loading <br />of agrichemicals. The portable device must meet published standards and <br />specifications (USDA-NRCS Field Office Technical Guide — Interim Standard, Code <br />703). The device can be used at more than one citrus grove. <br />Precision Application Equipment Specialized equipment that allows nutrients and <br />pesticides to be applied in a precise manner relative to the target of application. <br />This includes sonic or optical sensors, devices that apply pesticides in a pre- <br />defined, regulated manner, and equipment that uses GIS technology to allow <br />application based on a pre -defined map. Precision application equipment often <br />varies the rate of application, materials used, and location of application to achieve <br />precise placement of the materials Through this program, the department intends <br />to cost share the precision elements of new equipment or retrofits to existing <br />equipment that are needed to convert a non -precision spreader or sprayer into a <br />precision spreader or sprayer. <br />Water Table Observation Well This practice facilitates observation of the water <br />table in a citrus grove and will help the manager to determine when groundwater <br />Revised 03/21/02 5 <br />