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_ .r:-a-f - `=�r "a+��a. . - �?. - �% svsem" � ,�,� =-�,• _�. . <br /> T� •�'� ~,�• "� � � "•'fir <br /> Lann eraville School District <br /> 202/799-8221 <br /> July 28, 1987 <br /> regnired by the regulatory agencies . As such . Groundwater <br /> Technology recommends the following; <br /> Samplr, water from the bottom of the tank pit , if <br /> possible. <br /> Install two additional monitoring wells, one <br /> w approximately 150 feet northeast of the tank alt <br /> and the second due east in the County right-of--way <br /> along the east side of Hansen Road. Possible <br /> installation of a third additional well , between MW5 <br /> and the residence to the north of the School property <br /> may be required. <br /> " Sample the additional wells and all five existing <br /> monitoring wells to confirm the total volatile <br /> hydrocarbon levels and to check for possible migration <br /> - of the plume. <br /> Sample water from the well located at residence north <br /> of school property for total volatile hydrocarbon and <br /> benzene toluene ethylbenzene and xylene concentrations . <br /> Subsequent to the completion of the above work steps and <br /> - evaluation of the additional information, Groundwater Technology <br /> would (in consultation with Lammersville School District) develop <br /> a remedial action plan for the site. <br /> 16 <br />