2005-187 - Laserfiche WebLink

Home Browse Search

South Gifford Road Landfill Indian River County GROUND WATER QUALITY MONITORING 5 . The twenty-seven ( 27 ) ground water monitoring wells designated for water quality testing and water level measurements are listed on Attachrnent A and shown on Attachment B . [ 62-522. 600(3) & (6), F. A . C.] NOTE : Unless otherwise approved by the Department , wells with hi h turbidities must be remediated or reinstalled to reduce the turbidity value to less than 20 NTU prior to sample collection . Should any ground water sample exhibit dissolved oxygen concentrations greater than 20 % of oxygen saturation at the field measured temperature , the sampled well must be repurged then resampled as soon as an acceptable dissolved oxygen value has been attained unless it can be demonstrated that in situ ground water contains higher levels of dissolved oxygen . All water quality analyses will be performed on unfiltered samples unless approved by the Department . 6 . Samples from the twenty-seven (27 ) ground water monitoring wells shall be collected semi -annually and analyzed as follows : water elevati n , specific conductivity (field ) , pH (field ) , dissolved oxygen (field ) , turbidity (field ) , temperature (field ) , colors and sheens ( by observation ) , chlorides , p enols , total dissolved solids (TDS ) , and the parameters listed on the monitoring report form by EPA Methods 601 and 602 . [ 62-522. 600(3)2 62-4. 070(3), F.A . C. ] Please confer with your consultant and analytical laboratory prior to sampling to ensure the analytical method is capable of achieving detection limits at or below the Ground Water Cleanup Target Levels ( GCTLs) in Chapter 62 - 777 , F . A . C . NOTE : GCTLs are used as screening tools and interim guidelines for ground water minimum criteria until standards are promulgated . 7 . Ground water levels in all wells , whether sampled or not , must be measured to the nearest 0 . 01 foot and reported semiannually unless required more frequently by permit condition . All water level measurements must be made Within a one - day period . These measurements must be referenced to the Natio al Geodetic Vertical Datum of 1929 ( NGVD ) . [ 62-522. 600(3), 62-4. 070(3), F. A . C. MONITORING WELL REQUIREMENTS 8 . If a monitoring well damaged or inoperable , the Permittee shall notify the Department in writing within seven ( 7 ) days . The written report shall describe what problem has occurred and the remedial measures that have been taken to prevent a recurrence . The Department can require the replacement of inoperable monitoring wells . [ 624. 070(3), F. A . C. ] 9 . New or replacement monitoring well design or placement must be approved by the Department . Proposed well construction details based onsite-specific borings must be submitted with all supporting data (grain size distribution analyses , in -situ hydraulic conductivity testing , depth to water , etc . ) for . 2 - 01 /06/05