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Soil Suitability / Nitrate Loading Study Ehlers Property ■ Lodi, California May 13, 2021 + Terracon Project No. NA217019 1.3.5 Septic Permit History in the Vicinity Irerracon Terracon searched the EHD Public Records website for the adjoining property septic permits. The following table is a summary of septic permits available for the adjacent and nearby properties: Table 3. Summary of Adjoining Property Septic Permits. NF — No septic permits found, LL — leach lines Based on a review of the permits, the septic systems in the area appear to utilize 100 -foot long leach lines. 1.3.6 Septic Repair Permit History in the Vicinity Septic repairs in the vicinity appear to be for the addition of leach lines. Copies of selected septic permits can be found in Appendix C of this report. 1.3.7 Expected On -Site Maximum Septic Tank Usage According to the client provided information, the grain facility warehouse will employ up to five employees year round up to 10 hours per day. The proposed hemp facility will employ up to 5 employees, year round from 7 am to 7 pm with an average of up to three visitors per day. Effluent was based on the EHD recommended daily use rate of 15 -gallons per day (gpd) for an industrial building with no food cafeteria and 5 -gallons per visitors (OWTS Standards, page 21). Below is a table of the overall septic system usage calculated for the facility. Hours of operation vary between 10 and 12 hours per day depending on operation. Maximum usage rates were calculated based on the maximum number of employees and visitors expected during peak business hours for each operation. Responsive ■ Resourceful ■ Reliable 6 Leach Leach Filter Bed Direction Address Permit # Type Tank Size Line Line Width, Length, (Year) (Gallons) Quantity Length Depth (Feet) (Feet) North 9099 W St Rt Hwy 12 NF --- --- — -- -- 71-050 Septic Install 2,400 3 100 --- (1971) Northeast 9301 W St Rt Hwy 12 71-274 Septic --- 2 150 --- (1971) Repair Northwest 15299 N Guard Rd NF --- --- --- --- --- East 8950 W St Rt Hwy 12 NF --- --- --- -- - South 14755 N Guard Rd NF --- --- --- -- -- South- 11510 W St Rt Hwy 12 NF -- -- — - southwest NF — No septic permits found, LL — leach lines Based on a review of the permits, the septic systems in the area appear to utilize 100 -foot long leach lines. 1.3.6 Septic Repair Permit History in the Vicinity Septic repairs in the vicinity appear to be for the addition of leach lines. Copies of selected septic permits can be found in Appendix C of this report. 1.3.7 Expected On -Site Maximum Septic Tank Usage According to the client provided information, the grain facility warehouse will employ up to five employees year round up to 10 hours per day. The proposed hemp facility will employ up to 5 employees, year round from 7 am to 7 pm with an average of up to three visitors per day. Effluent was based on the EHD recommended daily use rate of 15 -gallons per day (gpd) for an industrial building with no food cafeteria and 5 -gallons per visitors (OWTS Standards, page 21). Below is a table of the overall septic system usage calculated for the facility. Hours of operation vary between 10 and 12 hours per day depending on operation. Maximum usage rates were calculated based on the maximum number of employees and visitors expected during peak business hours for each operation. Responsive ■ Resourceful ■ Reliable 6