(a)Rule-authorized Class II saltwater disposal wells. In addition to the requirements of § 144.28(f)(3)(ii) of this chapter, the owner or operator shall, except during well stimulation, use an injection pressure measured at the wellhead that is not greater than the pressure calculated by using the following formula: Pm = 0.2d
where:
Pm = injection pressure at the wellhead in pounds per square inch
d = depth in feet to the top of the injection zone.
Owners and operators shall comply with this requirement no later than one year after the effective date of this program.