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d <br /> rFT <br /> be included in the analytical submittal as well as the draft and final en- <br /> gineering reports. The AE must hold and make available all project raw data <br /> for a period of five years after samples have been analyzed. <br /> 9.0 Infection Well Installation and Testing Requirements. <br /> The following requirements shall be incorporated into the AE's design docu- <br /> ments and applicable work plans and followed in the field. <br /> 9.1. Location. Injection well locations shall be proposed by the AE as <br /> part of the plan prior to commencement of drilling activities. The AE shall <br /> obtain written approval from the Director of Engineering and Housing at DDRWS <br /> to drill at each site to avoid disturbing buried utilities. <br /> 9.2. Design of Infection Wells. The design and construction of injec- <br /> tion wells shall follow as closely as practical the design criteria presented <br /> in "RCRA Ground-Water Monitoring Technical Enforcement Guidance Document". <br /> (Reference 10.21) State or local certification requirements for drillers <br /> shall be met. The AE shall be responsible for obtaining any soil boring or <br /> well drilling permits required by state or local authorities and for complying <br /> with state or local regulations concerning submission of well logs and <br /> samples. <br /> 9.3. Installation of Iniection Wells. <br /> 9.3.1 General Requirements. The AE shall provide all drilling equip- <br /> ment, materials and personnel required to install the wells, as well as a <br /> qualified geologist or geotechnical engineer who shall be on-site for all <br /> drilling, installation, development and testing operations. The AE shall use <br /> dry, hollow stem or solid auger, or air-rotary methods. The AE shall submit <br /> proposed drilling methods in his Remedial Design Work Plan. Any changes to <br /> the approved drilling methods must be submitted to the Contracting Officer for <br /> prior approval. <br /> 9.3.2. Protection of Water Yielding Zones. The use of any liquid, in- <br /> cluding water, is to be generally avoided during drilling and will only be <br /> permitted by the Contracting Officer in cases where it is determined, by the <br /> Government, to be absolutely necessary for successful installation of the <br /> well. If water is required during drilling or well installation, only non- <br /> chlorinated potable water will be permitted. Any proposed use of water must <br /> be approved by the Contracting Officer beforehand. The source must be iden- <br /> tified and chemical analyses provided. Grease or oil on drill rod joints will <br /> AA-27 <br />