(a) The Christmas tree and all well-head connections on each well drilled within the city limits shall be as follows: On all flowing wells completed at a depth of above 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.
(b) All piping and fittings connecting the well-head to an oil gas separator shall have at least the same minimum working pressure and minimum test pressure as hereinabove specified for Christmas tree and well-head connections. In the event the surface shut-in pressure of any well in the city limits exceeds 2,000 pounds per square inch, the flow wing of the Christmas tree shall be equipped with an automatic-closing safety valve in addition to the regular control valves.
(Ord. 39817, passed 10-2-79)