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MONITORING AND REPORTING PROGRAM FORWARD INCORPORATED WASTE MANAGEMENT FACILITY CLASS II LANDFILLS CLASS III LANDFILLS CLASS II SURFACE IMPOUNDMENT CLASS II LAND TREATMENT UNIT SAN JOAQUIN COUNTY CONTAMINATED SOILS MONITORING -12- Monitoring requirements for soils accepted for aeration in WMU G are as follows: TPH shall be measured using the modified EPA Method 8015. BTX&E shall be measured using EPA Method 602. *The total amount of contaminated soil accepted from a site (gas station, pipeline spill, etc.) shall be defined as a lot. For every lot of soil, representative testing for TPH and BTX shall be conducted before the soil is accepted at Forward. If the lot can be aerated all at once, then at least one sample shall be collected and tested to establish post -aeration values for TPN and BTX. If the lot must be split into groups for aeration, then at least one sample shall be collected from each group and tested for TPH and BTX. Data from contaminated soil monitoring shall be organized in a tabular form and submitted to the Board on a quarterly basis. STATISTICAL PROCEDURES FOR DETERMINING SIGNIFICANT INCREASES The significance of increases in indicator parameters and waste constituents over water quality protection standards shall lie established using the statistical procedure described in the ground water monitoring plan requested in Order No. 88-023, Provision C. 13. Report in Sampling Parameter Units of Frequency Amount of soil aerated Cubic Yards Every Lot* Before aeration: TPH mg/l Every Lot* BTX&E ug/l Every Lot* After aeration: TPH mg/l Every Lot* BTX&E ug/l Every Lot* Final disposition of soil -- Every Lot* TPH shall be measured using the modified EPA Method 8015. BTX&E shall be measured using EPA Method 602. *The total amount of contaminated soil accepted from a site (gas station, pipeline spill, etc.) shall be defined as a lot. For every lot of soil, representative testing for TPH and BTX shall be conducted before the soil is accepted at Forward. If the lot can be aerated all at once, then at least one sample shall be collected and tested to establish post -aeration values for TPN and BTX. If the lot must be split into groups for aeration, then at least one sample shall be collected from each group and tested for TPH and BTX. Data from contaminated soil monitoring shall be organized in a tabular form and submitted to the Board on a quarterly basis. STATISTICAL PROCEDURES FOR DETERMINING SIGNIFICANT INCREASES The significance of increases in indicator parameters and waste constituents over water quality protection standards shall lie established using the statistical procedure described in the ground water monitoring plan requested in Order No. 88-023, Provision C. 13.