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5.5 Analytical Testing
<br /> Analysis of selected soil and collected groundwater samples will be performed by a State-certified
<br /> laboratory. Potential soil samples are proposed to be analyzed for TPHg, TPHd, TPH-MO by EPA Test
<br /> Method 801513; BTEX, fuel oxygenates MTBE, DIPE, ETBE, TAME, TBA, naphthalene, 1,2
<br /> dichloroethane (1,2-DCA) by EPA Test Method 8260B, ethylene dibromide (EDB)by EPA Test Method
<br /> 8011, and total lead by EPA Test 6010. Any soil samples containing detectable concentrations of TPH-
<br /> MO will be additionally analyzed for VOCs, semi-VOCs, and title 22 metals. Only soil samples
<br /> indicating potential petroleum hydrocarbon contamination during field screening will be submitted for
<br /> laboratory analysis. Groundwater samples are proposed to be analyzed for TPHg, TPHd, TPH-MO by
<br /> EPA Test Method 801513; BTEX, fuel oxygenates MTBE, DIPE, ETBE, TAME, TBA, naphthalene, 1,2
<br /> dichloroethane (1,2-DCA) by EPA Test Method 826013, ethylene dibromide (EDB)by EPA Test Method
<br /> 8011, and total lead by EPA Test 6010. Additional analyses may be recommended based on the results of
<br /> this phase of investigation.
<br /> Quality Assurance and Quality Control (QA/QC) procedures, sample preservation, apparatus required,
<br /> and analyses performed will be per: 1) A.A.C. R9-14-601 through -617; 2) U.S. EPA Document EPA-
<br /> 600, "Methods for Chemical Analysis for Water and Wastes" dated July 1982; and 3)U.S. EPA document
<br /> SW-846, 3rd Edition, "Test Methods for Evaluating Solid Waste: Physical Chemical Methods", dated
<br /> November 1986.
<br /> 5.6 Land Survey
<br /> IES intends to contract with a California-licensed Professional Land Surveyor, to survey the location and
<br /> elevation of the newly installed wells and incorporate it into the existing site survey. The latitude and
<br /> longitude of the soil borehole will be measured to an accuracy of one meter in accordance with Article 12
<br /> (Section 2729.1) of Chapter 16,Division 3, Title 23 of the CCR. This information will be uploaded to the
<br /> GeoTrackefrm website.
<br /> 5.7 Groundwater Monitoring
<br /> IES proposes to gauge depth to water and monitor for non-aqueous phase liquid, also referred to a phase
<br /> separated hydrocarbons (PSH) in the newly installed wells (MW-15B, MW-16C, MW-1713, MW-18C,
<br /> MW-19B and MW-20C). Assuming that PSH is not present in the newly installed wells, they will be
<br /> purged and sampled utilizing low-flow technology employed at this Site prior to collecting groundwater
<br /> samples. All network groundwater monitoring wells, including the recently installed wells, will be
<br /> monitored on a semi-annual basis as determined by the RWQCB. Well purging and sampling will be
<br /> conducted in accordance with IES's Standard Operating Procedure - Groundwater Monitoring and
<br /> Sampling Procedures (Low-Flow Methodology).
<br /> 5.8 Waste Disposal
<br /> Soil and groundwater analytical data reported during this phase of site assessment will be used to
<br /> characterize the waste generated during this phase of assessment for disposal. All investigative derived
<br /> waste (IDW), which typically includes drill cuttings, decontamination rinse-ate, well development and
<br /> California Tank Lines Innovative Environmental Solutions
<br /> Addendum to Work Plan -7- Encinitas,California
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