Identify locations of new monitoring wells and screen intervals.

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Learning Goal: I’m working on a environmental engineering discussion question and need an explanation and answer to help me learn.For the gas station site your firm has been provided a budget of $30,000 to perform afield investigation. Design an investigation to further evaluate the extent of contaminationat and downgradient of the gas station site. Identify locations of additional borings andsample depths. Identify locations of new monitoring wells and screen intervals. Identifyanalyses to be performed. The budget for field investigation must not exceed $30,000.Use the following assumptionsa. A field engineer or geologist should be budgeted to oversee and/or performall field activities (drilling, well installation, soil sampling, groundwatersampling).b. A hollow stem auger drill rig can advance up to 80 feet per day including wellinstallation and soil sampling. The daily rate for a rig and operator is $1850with a one-time mobilization fee of $900.c. At least one week should separate well installation and sampling water from amonitoring well.d. A field technician can sample 3 monitoring wells in one day e. A field engineer/scientist labor rate is $950 per dayf. Soil/groundwater sampling equipment and vehicle rental is $250 per dayg. Well construction materials are approximately $45 per vertical footh. Maximum recommended monitoring well screen is 10 feeti. Disposal of investigation derived waste should be estimated at $300 per 55gallon drum or soil or water. Assume 0.125 cubic feet of soil cuttings pervertical foot of drilling and 3 gallons of purge water per monitoring wellsampled.j. See attached for laboratory analytical costs from Acme Labsk. Budget 8 hours for yourself to plan the investigation ($100 per hour), 2 hoursper day for each day of field work to coordinate with the field technician, and25 hours to prepare a data investigation summary report.Provide a brief summary of the investigation design and rationale for decisions made. Bespecific what depths to collect soil samples and vertical intervals for monitoring wellscreens. Include a drawing of the investigation layout.
Requirements: as per reuirement

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