NAC445A.913. Frequency of monitoring.

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The pressure of injection, pressure of the annular space between the tubing and the casing, rate of flow and cumulative volume of injected fluid must be monitored at least:

     1. Once each week for the disposal operations of a Class II well.

     2. Twice each month for Class III wells.

     3. Once each month for enhanced recovery of a Class II well.

     4. Once each day for injection of liquid hydrocarbons and the injection for withdrawal of stored hydrocarbons for a Class II well.

     5. As required by the permit for the operation of a Class V well.

(Added to NAC by Environmental Comm’n, eff. 7-22-87; A 10-21-87)—(Substituted in revision for NAC 445.4272)

                    
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