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f <br /> BCR & Associates, Ltd Rev 01 12153 <br /> Standard Procedure 6 <br /> Measuring and Recording Water Levels In Groundwater Monitoring <br /> Wells <br /> See Site Health and Safety and Equipment Decontamination <br /> Equipment <br /> 1 Flat Tape with electronic transducer marked in 1/100 foot <br /> Decontamination equipment consisting of tap water, de-ionized water and Alconox <br /> cleanser <br /> Tool box with box-end wrenches, pry bar, hammer, and non-volatile thread <br /> lubricant, xtra water tight, lockable, expansive well lids, locks <br /> Water - Level Forms <br /> Permanent Ink Marker <br /> Procedure <br /> Wells are accessed and identified The well head condition is evaluated and <br /> documented with respect to the lollowcng <br /> G Can the well be opened easily, i e is it rusted or neglected 7 <br /> a 18 the well labeled 7 <br /> ® Is the well secured, or locked ? <br /> • Has the water -tight integrity of the well head been maintained <br /> • Evidence of tampering 7 <br /> • Is a measuring point, i e black arrow or notch present on the riser rim <br /> If the wells can be identified, and accessed, they are opened to allow atmospheric <br /> equalization The order of wells from "Clean" to "dirty" should have been <br /> determined prior to site mobilization If product odor is discernable, that well <br /> should be sampled last <br /> Subsequent to decontamination, the transducer is lowered carefully into the well <br /> bore A audible and visual signal indicates the water table The signal gain may be <br /> adjusted to distinguish between moisture on the well bore sides and the water <br /> table in crooked wells <br /> The depth to water is recorded on the water level form, and a second confirming <br /> water level measurement is made <br />