40 CFR § 147.253 State, Tribal, and EPA-Administered Underground Injection Control Programs

§ 147.253 Existing Class I, II (except enhanced recovery and hydrocarbon storage) and III wells authorized by rule.

Current through Aug 22, 2025 · Read all of Part 147

⚠ 3 pending changes to Part 147

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 § 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.

← § 147.252 Aquifer exemptions. [Reserved]§ 147.300 State-administered program—Class II wells. →