SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT
RULE 466 - PUMPS AND COMPRESSORS
(Adopted May 7, 1976)(Amended September 2, 1977)
(Amended December 7, 1979)(Amended October 3, 1980)
(Amended October 7, 1983)
For the purpose of this rule:
(A) A leakage of more than three drops per minute.
(B) A visible liquid mist.
(C) Any visible indication of leakage at or near the seal/shaft interface for gas compressors.
(A) Any pump or compressor having an operable spare permanently connected in the system shall be shut down or the spare pump or compressor placed in service, upon discovery of the leak. Such spare devices shall be inspected with a portable hydrocarbon detection instrument within 48 hours after they have been placed in service. A leaking spare pump or compressor shall be repaired within fifteen working days to a leakage rate of 10,000 ppm or less. If, after repairs are completed, the gaseous leakage rate from the unit is greater than 10,000 ppm when measured at the source with a portable hydrocarbon detection device, one of the following actions shall be taken:
(i) Vent the emissions to an air pollution control device, or
(ii) Petition the Hearing Board for a variance, or
(iii) Repair or replace the leaking pump or compressor at the next turnaround of the process unit such that the leakage is less than 10,000 ppm. Units to be repaired or replaced at the turnaround shall be tagged to that effect, or otherwise conspicuously marked or coded in a manner easily identifiable to District personnel.
(B) Any pump or compressor having no operable spare permanently connected in the system shall be:
(i) Repaired within one working day of discovery of the leak in such a manner that the leakage is minimized; and
(ii) Repaired or replaced at the next scheduled turnaround of the process unit such that the leakage is less than 10,000 ppm.
(iii) If, after repairs are completed, the leakage rate is greater than 10,000 ppm, then the leak shall be vented to an air pollution control device, or a petition for variance shall be submitted to the Hearing Board.
(c) Inspection Schedule
Persons subject to this rule shall:
(A) Operates at temperatures in excess of 260oC (500oF).
(B) Is vented to an air pollution control system.
(C) Is shut down and tagged or logged for maintenance.
(D) Handles liquids or gases with a water content of 80 percent or greater.
(E) Handles liquids or gases with a hydrogen composition of 80 percent or greater.
(F) Handles commercial natural gas exclusively.
(G) Incorporates dual seals with seal oil barriers, or an equivalent design approved by the Executive Officer, provided that the gases emitted from the seal oil reservoir or vented to the atmosphere are in compliance with the requirements of section (b)(2).
(A) Any reciprocating pump used in crude oil production and pipeline transfer.
(B) Any pump or compressor which has a driver of less than one (1) horsepower or equivalent rated energy.
Each operator of a pump or compressor shall maintain records of inspections required by section (c)(4) in a manner specified by the Executive Officer.
(f) Measurement Requirements
(A) At a distance of one centimeter from the source, or
(B) As an alternative, the following concentration versus distance relationships may be used at the operator's option where the one centimeter distance is unsafe or impractical:
Equivalent Concentration PPM at Requirement ----------------------------------------------- at 1 Cm 2 Cm 3 Cm 4 Cm 5 Cm 10,000 6,000 4,000 2,000 1,000 50,000 28,000 16,000 9,000 5,000
Where an alternative distance from the source is used, the Executive Officer may require that the reason for the increased distance be verified and that the alternative distance be recorded for the specific pump or compressor, and, further, that such distance be used for all subsequent concentration measurements for the specific pump or compressor.