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applicant to conduct tests of the injection zone during and after construction of the well. This data will be reviewed by the EPA before the applicant will be allowed to commence injection. 9. BASIS FOR DRAFT PERMIT CONDITIONS a. Well Desien & Construction Reauirements The completed injection well will consist of surface instrumentation, conduc- tor pipe, surface casing, long casing, injection tubing, an isolation packer, and a slotted liner. The surface instrumentation will include a dual pen, chart pressure recorder that will continuously measure the injection wellhead pressure and annulus pressure. Other surface instrumentation includes a continuous flow recorder and a bimetal dial thermometer on the injection line. The conductor pipe will be completed to about 30 feet and be 16 inches or more in diameter. The surface casing will be 10 inch diameter casing meeting 40 CFR requirements. It will be run from the surface to a depth of about 1700 feet or 100 feet below the base of fresh water. The long casing is 7" in diameter and runs from the surface to about 2700 feet. As required by 40 CFR 146.12, the waste water is to be injected through tubing with a packer set near the bottom of the long casing. The tubing will be a 4 inch O.D. tubing that is commonly used in oil field injection wells. The packer is a hydraulically set type that holds against pressure from above and below. After the packer is set, the annulus is pressurized and the pressure will be recorded con- tinuously to detect leaks. A conventional slotted liner, as opposed to a cased-through, jet perforated completion, will be used for the VFF injection well. The slotted liner completion was chosen because of its greater flow capacity at lower pressures. The Agency may permit small deviations from these construction specifica- tions if required by circumstances at the site. b. Oaeration The draft permit requires the permittee to inject only the non-hazardous liq- uid wastes described in Section 3 of this fact sheet. The applicant is prohibited from injecting any fluid which would cause a violation of drinking water standards as set forth in 40 CFR 142. The injection zone shall consist of the Domengine Formation and any suitable formation below the Domengine. All injection shall take place below the Nortonville Shale which may also be referred to here as the 'confining layer'. 6