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IPART 1 GENERAL <br />1.01 SUMMARY <br />A. Providing wells accepted by the regulatory agencies as suitable for sampling <br />groundwater, as identified herein, is of the essence in this contract. <br />B. Contractor shall install groundwater wells in accordance with these specifications <br />and associated figures. <br />C. Contractor shall be solely responsible for any damage to equipment, such as drill <br />rigs, drilling augers, rods, etc. <br />D. Engineer refers to County's Engineer for the project and or County's consultant. <br />1.02 SUBMITTALS <br />A. Contractor shall submit the following to the Engineer before starting work. <br />1. Method of drilling: whether by mud -rotary, air -rotary, hollow stem auger, or <br />other method. The drilling method shall prevent the collapse of formation <br />material against the well screen and casing during installation of the well. <br />The inside diameter of any temporary casing used shall be sufficient to <br />allow accurate placement of the screen, riser, centralizers, filter pack, seal <br />and neat cement grout. Contractor shall not use use drilling aids such as <br />bentonite, other clay -based agents, or any materials capable of affecting <br />the characteristics of the ground water. Grease or oil on drill rods, casing, <br />or auger joints are not permitted; however, PTFE tape or vegetable oil (in <br />solid phase form) is acceptable. <br />2. Drilling fluid additive, if used. <br />3. Work schedule, identifying approximate drilling and well inspection time. <br />4. Health and Safety plan. The health and safety plan shall describe the <br />safety procedures and emergency response procedures in case of an <br />emergency. Contractor shall incorporate comments related to safety in the <br />health and safety plan after review by the Engineer. <br />5. Bentonite description and particle size. <br />1.03 PERMITS <br />A. Contractor shall notify underground service alert (USA) and have the work area <br />cleared by underground utility companies before drilling. Contractor will be held <br />liable for any damages caused by the Contractor by not following the guidelines <br />set by USA. The Contractor shall provide the USA ticket numbers to the <br />Engineer 24 hours before drilling. The County will also notify USA. <br />San Joaquin County <br />Groundwater Monitoring Well Specifications 1 Public Works Dept <br />Solid Waste Division <br />