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i <br /> Report of Findings—Phase 11 Soil anu.;roundwater Assessment Page 4 <br /> Teixeira-Souza Dairy February 1,2007 <br /> WKA No.6504.45 <br /> borings drilled by the track-mounted GeoProbe rig. Groundwater samples were collected into <br /> 250-milliliter(mL) sulfuric acid preserved poly plastic bottles and 500 mL non-preserved poly <br /> plastic bottles for Iaboratory analysis. Groundwater samples were promptly labeled and placed <br /> into an ice-chilled cooler for transport to the analytical laboratory under chain-of-custody <br /> documentation. <br /> At the end of each day of fieldwork, depth-to-groundwater level measurements were collected <br /> from each open boring advanced that day using an electronic sounder with a tape graduated in <br /> 1/100ths of afoot. Following the measurement of the depth-to-groundwater in each open boring, <br /> the boreholes were abandoned by filling with neat cement in accordance with San Joaquin <br /> County Environmental Health Department(SJCEHD)regulations and with oversight by a <br /> SJCEHD inspector. <br /> Selected soil and groundwater samples were submitted to California Laboratory Services in <br /> Rancho Cordova, a California Department of Health Services-certified laboratory for analysis of <br /> the constituents listed in the table below. <br /> �.,, u�e.:n Y�,: 'F{,'- Y':. 1' .]r_.Se��:�-._":n ��.s.'up,��: ..4��•. ?4' .� _,'g}.-n_:,r}c-`,' <br /> Soil Ammonia as Nitrogen 350.2M <br /> Nitrate as Nitrogen 300.0 <br /> Nitrate/Nitrite as Nitrogen 300.0 <br /> Total Kjeldahl Nitrogen 351.3 <br /> Total Nitrogen 351.3/300 <br /> Specific Conductance 120.1 <br /> PH 9045C <br /> Total Phosphorus as Elemental <br /> 365.2 <br /> Phosphorus <br /> '. .. 'i,5,r „•.?`."'C'� ':ei+i�•r:,,'yy�� - cif''•.3.'•'• <br /> Groundwater Ammonia as Nitrogen 350.2 <br /> Nitrate as Nitrogen 300.0 <br /> Total Dissolved Solids 160.1 <br /> Following site assessment fieldwork conducted by WKA, five of the boring locations (SB2, S138, <br /> SB 13, SB 16, and SB20) were surveyed by MacKay& Somps Engineering of Lathrop, <br /> California. Vertical and horizontal controls were measured in the field to calculate groundwater <br />