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Indian River County Landfill <br />Indian River County <br />5. The Department must be notified in writing at least fourteen <br />(14) days prior to the installation and/or sampling of any <br />monitoring well(s). <br />GROUND WATER QUALITY MONITORING <br />6. The sixteen (16) ground water monitoring wells designated <br />for water quality testing are listed on Attachment A and are <br />shown on Attachment B. The wells and piezometers for water level <br />measurements are shown on Attachment B. <br />NOTE: Unless otherwise approved by the Department, wells with <br />high turbidities must be remediated or reinstalled to <br />reduce the turbidity value to• less than 20 NTU's prior <br />to sample collection. Should any ground water sample <br />exhibit dissolved oxygen concentrations greater than 20% <br />of oxygen saturation at the field measured temperature, <br />the sampled well must be repurged then resampled as soon <br />as an acceptable dissolved oxygen value has been <br />attained unless it can be demonstrated that insitu <br />ground water contains higher levels of dissolved oxygen. <br />All water quality analyses will be performed on <br />unfiltered samples unless approved by the Department. <br />7. Samples from the sixteen (16) ground water monitoring wells <br />shall be analyzed as follows: <br />SEMIANNUAL ANALYSIS - pH (field), • specific conductance <br />(field), turbidity (field), dissolved oxygen (field), temperature <br />(field), total ammonia as N, chlorides, iron, mercury, nitrate, <br />sodium, total dissolved solids and the EPA 40 CFR, Part 258, <br />Appendix I parameters. A11 analyses must use detection limits at <br />or below State Standards; <br />8. Ground water levels in all wells, whether sampled or not, <br />and all piezometers must be measured to the nearest 0.'01 foot and <br />reported semiannually unless required more frequently by permit <br />condition. All water level measurements must be made within a <br />one day period. These measurements must be referenced to the <br />National Geodetic Vertical Datum of 1929 (NGVD). • <br />SURFACE WATER MONITORING <br />9. The four (4) surface water sites included in this monitoring <br />plan are S-9, S-12, S-13 and S-14. They are listed on Attachment <br />A and shown on Attachment B. <br />-2- <br />PWIOTe no Inn /n• <br />