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• The exploratory boring (EBI) was completed to a depth of approximately 60 feet Upon
<br />' completion of soil sampling, the exploratory boring was abandoned with a cement grout
<br /> • Each of the three injection point boreholes (IPI-IP3) was advanced to a depth of
<br /> approximately 40 feet and each was completed with two stainless steel injection points,
<br /> one point for the potential injection of hydrogen peroxide and one point for the potential
<br /> injection of ozone The hydrogen peroxide points (IP1A, IP2A, and IP3A) were installed
<br />' with a I-foot section of '/Z-inch-diameter stainless steel well screen at depths between
<br /> approximately 29 and 31 5 feet The ozone points (IP I B, IP2B, and IP313) were installed
<br /> with a 3-foot length of 3/4-inch-diameter well screen at depths between approximately 33
<br /> and 39 feet
<br /> • Selected soil samples were analyzed for Total Petroleum Hydrocarbons as gasoline
<br />' (TPH-g), for benzene, toluene, ethylbenzene, and xylenes (BTEX), for the oxygenates di-
<br /> isopropyl ether (DIPE), t-butyl alcohol (TBA), tert-amyl methyl ether (TAME), tert-butyl
<br /> ethyl ether (ETBE), and methyl tert-butyl ether (MTBE), and for the additives ethylene
<br /> dibromide (EDB) and 1,2-dichloroethane (1,2-DCA), the results of which are herein
<br /> reported Selected samples were also analyzed for aluminum, antimony, arsenic, barium,
<br /> beryllium, cadmium, calcium, chromium (III and VI), cobalt, copper, iron, lead,
<br />' magnesium, manganese, mercury, molybdenum, nickel, potassium, selenium, silver,
<br /> sodium., thallium, tungsten, vanadium, and zinc, the results of which will be reported
<br /> under separate cover in the benchscale study report
<br /> • On 28 September 2004, groundwater samples were collected from injection paints IP 1 A,
<br /> IP 1 B, IP2A, IP2B, and IP313 The groundwater samples were analyzed for TPH-g,
<br />' BTEX, and MTBE A groundwater sample could not be collected from injection point
<br /> IP3A on 28 September 2004 because it was dry A groundwater sample was
<br /> subsequently collected from IP3A on 3 December 2004
<br /> • On 1 March 2005, the injection points were surveyed by a licensed land surveyor
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