Laserfiche WebLink
during and after construction of the well. This data will <br /> be reviewed by the EPA before the applicant will be allowed <br /> to commence injection. <br /> 9. BASIS FOR DRAFT PERMIT CONDITIONS <br /> a. Well Design and Construction Requirements <br /> The completed injection well will consist of surface in- <br /> strumentation, conductor pipe, surface casing, long string <br /> casing, injection tubing, an isolation packer, and a <br /> slotted liner. <br /> The surface instrumentation will include a dual pen, chart <br /> pressure recorder that will continuously measure the injec- <br /> tion wellhead pressure and annulus pressure. Other surface <br /> instrumentation includes a continuous flow recorder and a <br /> bimetal dial thermometer on the injection line. <br /> The conductor pipe will be completed to about 30 feet and <br /> be 16 inches or more in diameter. The surface casing will <br /> be 10-3/4 inch diameter, meeting 40 CFR §146. 12 require- <br /> ments. It will be run from the surface to a depth of about <br /> 1700 feet or 100 feet below the base of fresh water. The <br /> long string casing is 7 inches in diameter and runs from <br /> the surface to about 2700 feet. <br /> As required by 40 CFR §146. 12, the waste water is to be in- <br /> jected through tubing with a packer set near the bottom of <br /> the long casing. The tubing will be a 4-1/2 inch outside <br /> diameter tubing that is commonly used in oil field injec- <br /> tion wells. The packer is a hydraulically set type that <br /> holds against pressure from above and below. After the <br /> packer is set, the annulus will be pressurized and the <br /> pressure will be recorded continuously to detect leaks. <br /> A conventional slotted liner, as opposed to a cased- <br /> through, jet perforated completion, will be used for the <br /> Victor Fine Foods injection well. The slotted liner <br /> completion was chosen because of its greater flow capacity <br /> at lower pressures. <br /> The draft permit requires the permittee to construct the <br /> injection well in accordance with EPA regulations for Class <br /> I injection wells. The well must inject beneath the lower- <br /> most USDW and the well must be cased and cemented to <br /> prevent the movement of fluids into or above USDWs. <br /> 7 <br />