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FULLER MOBILE A IE PARK • <br /> Phase I Remedial Work Plan <br /> Page• 4 <br />' stainless steel screws, no PVC cement will be used The filter pack will extend <br /> two feet (2') above the perforated zone A Bentonite seal two to three feet (2-3') <br /> thick will be placed in the annular space abo,,e the filter pack followed by a <br /> cement grout to the surface Seal and filter pack elevations may change based on <br /> the underlying geology (Figure 4) <br /> 3 3 Well Development and Sampling <br /> The well will be developed until the well water appears clear of sediment, or <br /> until an appropriate number of well volumes (based upon the judgment of the <br /> responsible professional) have been evacuated The water produced during well <br /> development wall be containerized and left on site in 55-gallon drums, or other <br /> suitable containers for disposal as hazardous waste, if deemed necessary, upon <br /> receipt of laboratory results Disposal will be the responsibility of the client un- <br /> iess other arrangements have been made The wells will be altowcd to stabilize <br /> foi 24 hours, prior to sampling <br /> All soil and ground water samples will be properly labeled with date collected, <br /> project number, sample coordinator, and sample identification Fiela records <br /> will document the above information and other significant data, such as names <br /> of on-site personnel, sampling methods date and time of sa,mph-,g, the number <br /> of well volumes removed before sampling, preservatives added (if anv), and any <br /> filtration performed on samples <br /> The samples will be refrigerated immediate] for deliver to the laborafor and <br /> Y Y Y <br /> will not, under no circumstances, be opened by anyone other than laboratory <br /> personnel Chain of Custody records will be maintained at all tames (figure 5) <br /> 3.4 Soil Sampling <br /> - —�- - Ail soil sampling equipment will be thoroughly steam cleaned before and be- <br /> tween sampling to prevent cross contamination Relatively undisturbed soil <br /> samples will be taken at intervals of not moie than favi; feet (5') in order to <br /> evaluate the subsurface materials, however, this sampling interval may be <br /> waived in saturated sands in which sample recovery is not possible <br /> The soil samples will be taken using a California Modified Split Spoon sampler <br /> with brass liners The sampler will be driven continuously by a ware line <br /> hammer <br />