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TAH <br /> SUMMARY OF GROUNDWATER ANALYTICA <br /> US CAN-W <br /> Vernalis,San Joaqu- <br /> Concentrations it, <br /> Collection Date Ammonia <br /> Boring ID Method Sampled Alkalinity Nitrogen Bicarbonate Boron Calcium Carbonate Chloride Iron �lagnesiwn <br /> SCREENING MCL NA NA NA NA NA NA 250 0.3 NA <br /> LEVELS WQO NA 1.5" NA 0.6 5 NA NA 106 6 0.3 4 NA <br /> SB-44 ggw 7/20/2010 1436 <0.2 1 <4361 0.979 1 2351 <4601 259 1 <0.052 1 60.7 <br /> Abbreviations: <br /> CaCO3=Calcium carbonate <br /> CDPH=California Department of Public Health <br /> EPA=United States Environmental Protection Agency <br /> ggw=Grab groundwater <br /> ID=Identification <br /> MCL= Maximum Contaminant Level <br /> NA=Not applicable <br /> RWQCB=Regional Water Quality Control Board <br /> SAIC-Benham=The Benham Companies,LLC,an SAIC Company <br /> SWRCB=State Water Resources Control Board <br /> TDS=Total Dissolved Solids <br /> WQO=Water Quality Objective <br /> ---=Not available <br /> <=Denotes analyte not detected at or above the laboratory reporting limit <br /> mg/L=Milligrams per liter <br /> µmhos/cm=Micromhos per centimeter <br /> Notes: <br /> 1. Samples were collected by SAIC-Benham and were analyzed by Lancaster Laboratories,Inc. TDS were analyzed using EPA Method 160.1,sulfate using EPA Method? <br /> nitrate(as nitrogen)using EPA Method 300.0,nitrite(as nitrogen)using EPA 300.0,specific conductance using EPA 120.1,Kjeldahl nitrogen using EPA 351.2,phosph: <br /> using 350.2,alkalinity(as CaCO3)using SM 20 2320B,bicarbonate(as CaCO3)using SM 20 2320B,carbonate(as CaCO3)using SM 20 2320B,and hardness(as CaCO3 <br /> 2. Results in bold exceed WQOs and/or MCLs. <br /> 4. WQO(Tastes and Odors)that prohibits adverse tastes and odors or nuisance conditions. <br /> 5. WQO Suggested No Adverse Response Level. <br /> 6. WQO Agricultural. <br /> Sources: <br /> MCLs from EPA(June 2003)and CDPH(June 2010). <br /> WQOs defined in the Central Valley RWQCB Water Quality Control Plan(Basin Plan)for the Sacramento River Basin and San Joaquin River Basin(Fourth Edition),Oci <br /> WQOs may be stated in either numerical or narrative form. Narrative water quality objectives are interpreted by values <br /> from SWRCB A Compilation of Water Quality Goals-July 2008. <br /> ESLs from the San Francisco Bay RWQCB Screening for Environmental Concerns at Sites with Contaminated Soil and Groundwater <br /> (Interim Final),May 2008. <br /> Page <br />