The Christmas tree and all well head connections on each well drilled shall be as follows. On all wells completed at a depth of 4,000 feet, the Christmas tree and well head connections shall have at least a minimum working pressure of 2,000 pounds per square inch and a minimum test pressure of at least 4,000 pounds per square inch; and on all wells completed to a depth of from 4,001 to 7,000 feet, the Christmas tree and well head connections shall have at least a minimum working pressure of 3,000 pounds per square inch and a minimum test pressure of at least 6,000 pounds per square inch; and on all wells completed below a depth of 7,000 feet, the Christmas tree and well head connections shall be at least a minimum working pressure of 5,000 pounds per square inch and a minimum test pressure of at least 10,000 pounds per square inch. In the event the surface shut-in pressure of any well in the city limits exceeds 2,000 pounds per square inch, the flow string of the Christmas tree shall be equipped with an automatic closing safety valve in addition to the regular control valves.
(Ord. 59-311, passed 3-11-1959) Penalty, see § 113.99