Laserfiche WebLink
Soil Suitability Nitrate Loading Study <br /> Manteca Unified School District <br /> 14600 Austin Rd.,Manteca,California <br /> Page 10 <br /> 2.4.2 Methods Proposed to Mitigate and Known or Future Impact to Soil and Groundwater from <br /> Nitrate,and/or any Other Constituent of Concern,at and/or Around the Project Site <br /> The Site is located within historical agricultural farmlands and rural housing. Activities related to these <br /> practices and the use of existing septic systems are considered potential influences on soil suitability and <br /> nitrate loading results. The presence of groundwater at a depth of 45 feet bgs,below a significant clay layer, <br /> would tend to minimize potential building up of nitrate in the shallow aquifer. <br /> 3.0 CONCLUSIONS AND RECOMMENDATIONS SECTION <br /> The result of the nitrate loading report and calculation indicates that nitrate levels in leachate from the <br /> proposed septic system are estimated to be 8.4 mg/L nitrate-N, which is below the drinking MCL of 10 <br /> mg/L. <br /> 3.1 REPORT CERTIFICATION <br /> Our professional services were performed, our findings obtained, and our conclusions proposed in <br /> accordance with generally accepted engineering principles and practices.This warranty is in lieu of all other <br /> warranties either expressed or implied. Test findings and statements of professional opinion do not <br /> constitute a guarantee or warranty, expressed or implied. <br /> The professional findings contained in this nitrate loading study are strictly based on the information <br /> provided regarding the proposed project, other consultant's reports and conclusions, surficial geologic <br /> conditions encountered across the Site by others. Furthermore, the analysis, conclusions and <br /> recommendations contained in this report are based on the Site conditions as they existed at the time, we <br /> performed our study. <br /> Respectfully submitted, <br /> CONDOR EARTH �p,af,L GF <br /> ENVIRONMENTAL PROFESSIONAL: p� �D cr Oc ASSISTED BY: <br /> a u'+ <br /> NO.MS <br /> F OF C.0, FAQ` <br /> John P. Lane,CA PG No. 6795 May 22,2020 Kaleb Ledford <br /> Environmental Services Manager Staff Geologist <br /> X:\Proiect\7000_prj\7964 MUSD New Haven Elementary School\7964A-Soil Suit-Nitrate Loading\Reports\FR_20200522_New Haven Elementary <br /> Soil Suitability Nitrate Loading Study.docx <br /> 1'f <br /> t44�CONDO <br />