SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 361.53 - STACK SAMPLING
(Rev. Effective 3/27/90)

(a) Mercury ore processing facility.

(1) Unless a waiver of emission testing is obtained under Rule 361.13, each owner or operator processing mercury ore shall test emissions from this source,

(i) Within 90 days of the effective date in the case of an existing source or a new source which has an initial startup date preceding the effective date; or

(ii) Within 90 days of the startup in the case of a new source which did not have an initial startup date preceding the effective date.

(2) The Control Officer shall be notified at least 30 days prior to an emission test, so that he may at his option observe the test.

(3) Samples shall be taken over such a period or periods as are necessary to accurately determine the maximum emissions which will occur in a 24-hour period. No changes in the operation shall be made, which would potentially increase emissions above that determined by the most recent source test, until the new emission level has been estimated by calculation and the results reported to the Control Officer.

(4) All samples shall be analyzed, and mercury emissions shall be determined within 30 days after the stack test. Each determination shall be reported to the Control Officer by a registered letter dispatched within 15 calendar days following the date such determination is completed.

(5) Records of emission test results and other data needed to determine total emissions shall be retained at the source and made available, for inspection by the Control Officer, for a minimum of 2 years.

(b) Mercury chlor-alkali plant--hydrogen and end-box ventilation gas streams.

(1) Unless a waiver of emission testing is obtained under Rule 361.13, each owner or operator employing mercury chlor-alkali cell(s) shall test emissions from his source,

(i) Within 90 days of the effective date in the case of an existing source or a new source which has an initial startup date preceding the effective date; or

(ii) Within 90 days of startup in the case of a new source which did not have an initial startup date preceding the effective date.

(2) The Control Officer shall be notified at least 30 days prior to an emission test, so that he may at his option observe the test.

(3) Samples shall be taken over such a period or periods as are necessary to accurately determine the maximum emission which will occur in a 24-hour period. No changes in the operation shall be made, which would potentially increase emissions above that determined by the most recent source test, until the new emission has been estimated by calculation and the results reported to the Control Officer.

(4) All samples shall be analyzed, and mercury emissions shall be determined within 30 days after the stack test. Each determination shall be reported to the Control Officer by a registered letter dispatched within 15 calendar days following the date such determination is completed.

(5) Records of emission test results and other data needed to determine total emissions shall be retained at the source and made available for inspection by the Control Officer, for a minimum of 2 years.

(c) Mercury chlor-alkali plants--cell room ventilation system.

(1) Stationary sources using mercury chlor-alkali cells may test cell room emissions in accordance with Subsection (c)(2) of this rule or demonstrate compliance with Subsection (c)(4) of this rule and assume ventilation emissions of 1,300 gms/day of mercury.

(2) Unless a waiver of emission testing is obtained under Rule 361.13, each owner or operator shall pass all cell room air in forced gas streams through stacks suitable for testing.

(i) Within 90 days of the effective date in the case of an existing source or a new source which has an initial startup date preceding the effective date; or

(ii) Within 90 days of startup in the case of a new source which did not have an initial startup date preceding the effective date.

(3) The Control Officer shall be notified at least 30 days prior to an emission test, so that he may at his option observe the test.

(4) An owner or operator may carry out approved design, maintenance, and housekeeping practices. A list of approved practices is provided in Appendix a of "Review of National Emission Standards for Mercury", EPA-450/3-84-014a, December, 1984. Copies are available from EPA's Central Docket Section. Docket item number A-84-41, III-B-1.

(d) Sludge incineration and drying plants.

(1) Unless a waiver of emission testing is obtained under Rule 361.13, each owner or operator of a source subject to the standard in Rule 361.52(b) shall test emissions from that source. Such tests shall be conducted in accordance with the procedures set forth either in Section (d) of this rule or in Rule 361.54.

(2) Method 101 in Appendix B to CFR Part 61 shall be used to test emissions as follows:

(i) The test shall be performed within 90 days of the effective date of these regulations in the case of an existing source or a new source which has an initial startup date preceding the effective date.

(ii) The test shall be performed within 90 days of startup in the case of a new source which did not have an initial startup date preceding the effective date.

(3) The Control Officer shall be notified at least 30 days prior to an emission test, so that he may at his option observe the test.

(4) Samples shall be taken over such a period or periods as are necessary to determine accurately the maximum emissions which will occur in a 24-hour period. No changes shall be made in the operation which would potentially increase emissions above the level determined by the most recent stack test, until the new emission level has been estimated by calculation and the results reported to the Control Officer.

(5) All samples shall be analyzed, and mercury emissions shall be determined within 30 days after the stack test. Each determination shall be reported to the Control Officer by a registered letter dispatched within 15 calendar days following the date such determination is completed.

(6) Records of emission test results and other data needed to determine total emissions shall be retained at the source and shall be made available, for inspection by the Control Officer, for a minimum of 2 years.