[Code of Federal Regulations]
[Title 40, Volume 22]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR147.103]

[Page 801]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 147_STATE UNDERGROUND INJECTION CONTROL PROGRAMS--Table of Contents
 
                            Subpart C_Alaska
 
Sec. 147.103  Existing Class I, II (except enhanced recovery and hydrocarbon 

storage) and III wells authorized by rule.

    Maximum injection pressure. The owner or operator shall limit 
injection pressure to the lesser of:
    (a) A value which will not exceed the operating requirements of 
Sec. 144.28(f)(3) (i) or (ii) as applicable; or
    (b) A value for well head pressure calculated by using the following 
formula:

Pm=(0.733-0.433 Sg)d

where:

Pm=injection pressure at the well head in pounds per square inch
Sg=specific gravity of inject fluid (unitless)
d=injection depth in feet.