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<br /> 1.0 INTRODUCfION <br /> At the request of Mr. Stephen Jenkins, Director of Environment and Engineering for the City <br /> of San Marcos, McCulley, Frick and Gilman, Inc. has prepared this Work Plan and Cost <br /> Estimate to conduct quarterly ground-water monitoring activities for the landfill, beginning <br /> with the fourth quarter of 1990 and consisting of a total of four quarterly events. <br /> 2.0 WORK PLAN <br /> The Health and Safety Plan developed for the previous Ground-Water Assessment project will <br /> be utilized for the sampling activities. <br /> Samples will be collected from the wells containing water in accordance with Texas <br /> Department of Health and EP A protocols. Field measurements of pH, specific conductance <br /> and temperature will be performed and samples will be analyzed in a laboratory for general <br /> chemistry parameters required by the Texas Department of Health and Priority Pollutant <br /> volatile organic compounds. Detailed lists of parameters and EP A-approved analytical <br /> methods are presented in this section. <br /> The procedures for collecting, handling and analyzing ground-water samples are described <br /> below. Deviations from these procedures may be required during the program. Such <br /> deviations will first be approved by the Project Manager. <br /> Decontamination <br /> All equipment used to measure water levels or to purge and sample wells will be <br /> decontaminated before each use. Water level indicators will be rinsed with distilled water. <br /> Bailers, Teflon ropes and wire cables will be decontaminated in the following manner: <br /> 1) Scrub with non-phosphate detergent solution. <br /> 2) Rinse with distilled water. <br /> 3) Wrap in plastic until needed. <br /> If non-Teflon ropes are used to lower bailers, they will be discarded between locations, <br /> water level measurements <br /> Depth to water below the top of casing will then be measured with a decontaminated <br /> electronic (Olympic) water level indicator. Measurements will be recorded to the nearest 0.01 <br /> foot <br /> The total depth of the well below the top of the casing will then be sounded with a water level <br /> indicator. Measurements will be recorded to the nearest 0.01 foot. <br /> 1 <br />