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information the equipment to be used in this project as requested on the Equipment <br /> Schedule . He shall also submit with the above information a statement indicating <br /> ownership or lease agreement on this equipment . <br /> C . If, in the opinion of the ENGINEER, the CONTRACTOR ' S equipment is not capable <br /> of satisfactorily performing the work provided for in these specifications, the <br /> CONTRACTOR shall substitute equipment satisfactory to the ENGINEER . <br /> D . The CONTRACTOR in addition to furnishing the services of skilled and experienced <br /> drillers in the type of formations to encounter shall also furnish an adequate number <br /> of competent helpers. <br /> E . The CONTRACTOR shall provide suitable equipment for the specified work that <br /> shall be in good working order and operated by qualified personnel . <br /> F . Drilling operations will be restricted to normal daylight hours ( lam to 7pm) except as <br /> authorized by the ENGINEER . <br /> 2 .02 DRILLING EQUIPMENT <br /> A . Provide appropriate drilling equipment capable of drilling boreholes and completing <br /> the well as specified. <br /> B . Only mud rotary and reverse-air rotary drilling techniques will be utilized for these <br /> specifications. <br /> C . The CONTRACTOR shall provide use to the ENGINEER of an electric water level <br /> probe having not less than 100 feet of cable marked in increments of 0. 01 feet. <br /> D . The CONTRACTOR shall provide and install a flow measuring device capable of <br /> measuring discharge from the wells within +/- 5 % of true flow for flow rates ranging <br /> from 10 to 200 gallons per minute during performance of specific capacity test being <br /> conducted while reverse-air drilling of the pilot holes . The flow-measuring device can <br /> consist of machined orifice plate(s) and pipe(s), totaling flow meter, storage tank or <br /> other device approved by the ENGINEER. The storage tank must have a minimum <br /> capacity of 300 gallons, be installed level , marked at 100 gallon increments , and <br /> pumped free of discharge water before each specific capacity test . <br /> 2 . 03 DRILLING FLUIDS <br /> A . The ENGINEER prior to use must approve drilling fluids used during all drilling <br /> operations . Any water used during the drilling operation or cementing operations must <br /> be potable water. <br /> DRILLING <br /> 02050-2 <br /> C\DOCUME— I \mikeh\LOCALS- 1 \Temp\Temporary Directory 13 for TRC we] Is Div .zipft-IRC_DRILLING.DOC <br />