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Table Of Contents (Cont'd) <br />E~ <br />SectionS. Surface Construction Features 67 <br />A Locking Cover. 67 <br />B. Casing Cap 67 <br />C. Flooding 67 <br />D. Bases 67 <br />E. Vaults 68 <br />F. Protection From Vehicles 68 <br />Section 9. Casing 69 <br />Section 10. Sealing-OtTStrata 69 <br />Case 1. Upper Stratum. 69 <br />Case 2. BottomStratum 69 <br />Case 3. MultipleStrata "."' '..' ' 69 <br />Section 11. Repair of Cathodic Protection Wells 70 <br />Section 12. Temporary Cover. 70 <br />Part III. Destruction of Cathodic Protection Wells 71 <br />Section 13. Purpose of Destruction 71 <br />Section 14. Definition of "Abandoned" Cathodic Protection Wells. 71 <br />Section 15. General Requirements 71 <br />Section 16. Requirements for Destroying Cathodic Protection Wells. 71 <br />A Preliminary Work 71 <br />B. Filling and Sealing Conditions. 72 <br />1. Wells that only penetrate unconsolidated material and a single "zone" <br />of ground water. 72 <br />2. Wells that penetrate several water-bearing strata. 72 <br />3. Wells penetrating fractured rock. 72 <br />4. Wells in nonfractured consolidated strata. 72 <br />5. Wells penetrating water-bearing zones or aquifers of special significance. 72 <br />C. Placement of Material. 72 <br />1. Placement Method. 73 <br />2. Timing of Placement 73 <br />3. Ground Water Flow. 73 <br />4. Sealing Pressure 73 <br />5. Verification 73 <br />D. Sealing Materials 73 <br />E. Fill Material. 73 <br />F. Additional Requirements for Destruction of Cathodic Protection Wells <br />in Urban Areas 74 <br />G. TemporaryCover 74 <br />XIV