Laserfiche WebLink
F <br /> planations for these high nitrate concentrations are found in the land use: The <br /> ell to the west of the property is near fertilizer(UN 32%) storage and mix tanksin all probability caused this high nitrate concentration of 52 ppm. The east domesticngradient from Stuart's Nursery facility and other agricultural production land which <br /> may have contributed nitrate to the underlying aquifer. <br /> E. SURFACE WATER INFORMATION <br /> Surface water impoundments for the proposed project will include a wash water evaporation <br /> pond(assumed no percolation) and a storm drainage retention basin. This basin will be located <br /> downgradient from the leachfield and may contribute a dilution effect to the effluent in the top <br /> aquifer mixing layer. <br /> III. NITRATE LOADING STUDY RESULTS <br /> A. WASTEWATER FLOW CALCULATIONS AND CHARACTERISTICS <br /> To adequately determine nitrate-nitrogen loading from the proposed project,wastewater flows <br /> must be defined as accurately as possible. Wastewater flow determinations are based on <br /> information supplied by the "Employees Work Shift- Attachment to Antonini Enterprises Zone <br /> Reclassification and Use Permit" and illustrated below: <br /> EMPLOYEE OFF-SEASON PEAK-SEASON <br /> (October-June) (June- October) <br /> 20 Employees: 8:00 A.M.to 5:00 P.M. 2 Additional Employees 7 days per week <br /> Office Monday through Friday 20 Employees 8:00 A.M.to 5:00 P.M. <br /> Monday through Saturday <br /> 6 Mechanics on Day Shift 3 Additional Mechanics per shift <br /> Mechanics 3 Mechanics on Night Shift 24 hrs per day-7 days/wk <br /> 6:00 A.M.to 9:00 P.M. Mon.through Sat. <br /> 30 Trucks which exit the facility between 90 Trucks which exit the facility between <br /> Truck Drivers 3:00 A.M.and 10:00 A.M.and return 3:00 A.M.and 7:00 A.M. and return between <br /> between 2:00 P.M. and 8:00 P.M.. 1:00 P.M. and 10:00 P.M.. <br /> It is assumed there will be no cooking within a kitchen or office area and therefore, no need for a <br /> garbage disposal. Consequently, there should be no highly concentrated organic loading. The <br /> characteristics of the wastewater flow will be predominately blackwater from toilets, with a <br /> comparatively small volume of graywater from sinks and a possible shower. Other wastewater <br /> constituents may consist of coffee,juices or other similar type liquids to the system. <br /> 4 <br /> Valley sig Research <br />