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lierracon Soil Suitability / Nitrate Loading Study <br />Morada Produce —Ag Processing Building 1 Stockton, California <br />May 14, 2021 e Terracon Project No. NA217014 <br />Direction Address Permit # <br />(Year) Type Tank Size <br />(Gallons) <br />Leach <br />Line <br />Quantity <br />Leach <br />Line <br />Length <br />(Feet) <br />Seepage Pits <br />Width, Depth <br />(Feet) <br />(2017) <br />East 14255 E. Copperopolis NF - - --- - <br />South 14181 E. Copperopolis NF --- --- --- - --- <br />South 384 N. Jack Tone NF - - --- --- <br />West 601 N. Jack Tone NF --- --- --- <br />NF — No sep ic permits found, LL — leach lines <br />Based on a review of the permits, the septic systems in the area appear to utilize 40 to 55-foot <br />long leach lines with seepage pits. <br />1.3.6 Septic Repair Permit History in the Vicinity <br />Septic repairs in the vicinity appear to be for the addition of leach lines and seepage pits. Copies <br />of selected septic permits can be found in Appendix C of this report. <br />1.3.7 Expected On-Site Maximum Septic Tank Usage <br />According to client provided information the proposed Ag Processing Building will be occupied six <br />days per week from July through September from 7am to 4 pm. During the month of August, the <br />building will be open seven days per week from 7 am to 7 pm. The addition will be staffed with <br />up to 40 employees and up to approximately 4 visitors per day. The total maximum daily septic <br />tank usage for the proposed Ag Processing Building was calculated using the maximum number <br />of employees (40) and maximum number visitors (4) expected per day. <br />Below is a table of the overall septic system usage calculated for the facility. In general, the facility <br />is open six to seven days per week between 8am to 5pm. Maximum usage rates were calculated <br />based on the maximum number of employees and visitors expected during peak business hours <br />for each building with a septic system. <br />Table 5. <br />Expected On-Site Maximum Septic Tank Usage <br />Septic <br />System <br />No. <br />Building ID <br />Number <br />Hours of <br />Operation <br />per day <br />Number of <br />Employees <br />per day <br />Employee <br />Effluent <br />(x13 GPD8) <br />(x14.625 GPD9) <br />(x19.5 GPD12) <br />Number <br />Visitors/Truckers <br />per day <br />Visitor <br />Effluent <br />(x3 GPD) <br />Maximum <br />Septic Tank <br />Usage <br />Employee <br />GPD + <br />Visitor GPD <br />1 Northwest <br />Restroom <br />9 <br />(Standard) 10 146.25 2 6 152.25 <br />2 South <br />Restrooms <br />9 <br />(Standard) 60 877.50 10 30 897.50 <br />9 <br />(Apr-Jun, <br />Aug-Sep) <br />1,800 26,325 25 75 26,400 <br />satire. 7