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OA <br /> Groundwater Analytical Results <br /> ~~ Laboratory analysis southerly hat direct on hydrocarbonsAs shown h n groundwater <br /> 2-3, <br /> k Y have moved in a <br /> groundwater collected from borings B-16 and B�1,near the nage <br /> t concentrations of TPH. Groundwater for Boring el. No benzene was <br /> of the city property, contained 6.9 mg/kg Anal ses of the <br /> found in any of the HydroPunch samples. Y <br /> groundwater samples are shown in Table 2-2. TABLE 2-2 <br /> is <br /> Groundwater Sampling Results <br /> le TpH-Diesel gepaene Toluene Ethylbenzene Xylenes <br /> Boring#i SaMp (µfill) 4g11) (11811) (4gl1) <br /> (Mg11) N/A NIA <br /> NIA <br /> B-16 HP-1 150.000 NIA <.50 <.50 <br /> 0.030 e.50 <.50 <br /> S 17 HP-2 <br /> N.A. N.A. N.A. N.A. <br /> B-18 HP-18 0.970 <.30 <.30 <br /> <.30 <.30 <br /> 5-19 HP-19 160.000 <.30 <br /> i HP-20 0.035 <br /> <,30 <.30 <.30 <br /> 8-20 <3.0 97 28 <br /> 21 6.900 <br /> B-21 HP- <br /> <3.0 <br /> N.A. =Not Applicable <br /> Monitoring Well Construction <br /> Two of the soil borings,B-20 and B-21, were converted into monitoring <br /> wells MW-5 and MW-6, respectively (figure 2-h}• Both wells were <br /> completed approximately 15 feet into the saturated zone. <br /> Details of the well construction follow: <br /> • The well screen was f inches in diameter, <br /> laced n the bottom of he cas�ngslotted <br /> PVC. A threaded cap p <br /> The slot size was 0.010 inches based on formation grain sizes <br /> field examination of the drill cuttings from the <br /> observed during <br /> saturated zone; <br /> rhedule 40 PVC. It <br /> • below <br /> The well casing was four inches ;n d0 can had a locking cap on <br /> - was tightly threaded to the scree <br /> top; <br /> 2-4 <br />