SAN LUIS OBISPO COUNTY AIR POLLUTION CONTROL DISTRICT
RULE 419 - PETROLEUM PITS, PONDS, SUMPS, WELL CELLARS, AND WASTEWATER SEPARATORS
(Adopted 7/12/94)
A. APPLICABILITY
This Rule is applicable to pits, ponds, sumps, well cellars, and wastewater separators where crude oil or petroleum material is produced, gathered, separated, processed or stored.
B. DEFINITIONS
For the purposes of this Rule, the following definitions shall apply:
a. The detection of total gaseous hydrocarbons for any component in excess of 10,000 ppmv as methane above background measured according to the test procedure in Subsection E.3, or
b. Exclusive of intermediate barrier seal fluids, any liquid leak which drips liquid organic compounds at the rate of more than three drops per minute or one (1) cubic centimeter per minute.
A "leak" is not a gaseous emission from pressure relief devices on tanks or delivery vessels when normal process pressure exceeds the limit specified for the device.
a. "Primary or First Stage Production Sump" is any sump which is in continuous use and receives a stream of crude oil and produced water directly from oil production wells or field gathering systems.
b. "Secondary or Second Stage Sump" is any sump which is in continuous use and receives a wastewater stream from one or more first stage separators such as a primary or first stage production sump, a free water knockout device, or a wash tank as well as intermittent or emergency streams.
c. "Tertiary or Third Stage Sump" is any sump which is in continuous use and receives a wastewater stream from second stage or subsequent separation processes upstream of the sump, and has a very small amount of oil present.
C. EXEMPTIONS
The provisions of Section D of this Rule shall not apply to the following:
D. REQUIREMENTS
a. The cover material is impermeable to VOCs,
b. There are no holes, tears, or openings in the cover material which allow the emission of organic compounds into the atmosphere,
c. All covers and hatches remain closed and leak-free, except during times of actual maintenance, inspection, or repair,
d. The perimeter of any cover except for a rigid floating cover forms a leak-free seal with the foundation to which it is attached,
e. All rigid floating covers are installed and maintained such that the gap between the wall and the seal does not exceed 1/8 inch for a cumulative length of 95 percent of the perimeter of the compartment. No single gap between the wall and the seal shall exceed 1/2 inch, and
f. All pressure-vacuum relief valves are set to within ten (10) percent of the maximum allowable working pressure of the cover or in accordance with appropriate recommendations of the American Petroleum Institute or the American Society of Mechanical Engineers, and shall be properly installed, maintained in good operating order, and shall remain in a leak-free condition except when the operating pressure exceeds the valve set pressure.
a. A person shall not sample petroleum at the wellhead without using a portable container to catch and contain the portion that would otherwise drop into the well cellar. Such container shall be kept closed when not in use.
b. Immediately before a well is steamed or after a wellhead is steam cleaned, the well cellar in which it is located shall be pumped out.
a. Vapors from all such compartments within 100 feet of a suitable vapor recovery system are processed by that vapor recovery system. A vapor recovery system is suitable if it is of operational capacity sufficient to comply with vapor recovery requirements of Rule 425, Storage of Volatile Organic Compounds, Section E.3 after separator streams are added.
b. All wastewater separators not described by Subsection D.4.a of this Rule are equipped with one of the following:
i. the equipment consists of an enclosure or intake designed to collect and deliver all emissions and a control device to remove VOCs from the delivered emissions, and
ii. an Authority to Construct for installation of such equipment is granted by the APCO.
E. TEST METHODS
a. ARB Method 202 applies to tanks receiving organic liquid by truck.
b. ARB Method 203 applies to tanks receiving organic liquid other than by truck.
F. RECORDKEEPING
G. REPORTING
No later than January 12, 1995, the owner or operator shall submit to the APCO the following information:
H. COMPLIANCE SCHEDULE