40 CFR 98.425 – Procedures for estimating missing data
(a) Whenever the quality assurance procedures in § 98.424(a)(1) of this subpart cannot be followed to measure quarterly mass flow or volumetric flow of CO
(1) A quarterly CO
(2) A quarterly CO
(3) If a mass or volumetric flow meter is installed to measure the CO
(4) The mass or volumetric flow used for purposes of product tracking and billing according to the reporter‘s established procedures may be substituted for any period during which measurement equipment is inoperable.
(b) Whenever the quality assurance procedures in § 98.424(b) cannot be followed to determine concentration of the CO
(1) A quarterly concentration value that is missing may be substituted with a quarterly value measured during another quarter of the current reporting year.
(2) A quarterly concentration value that is missing may be substituted with a quarterly value measured during the same quarter from the previous reporting year.
(3) The concentration used for purposes of product tracking and billing according to the reporter’s established procedures may be substituted for any quarterly value.
(c) Missing data on density of the CO
(d) Whenever the quality assurance procedures in § 98.424(a)(2) of this subpart cannot be followed to measure quarterly quantity of CO
(1) A quarterly quantity of CO
(2) A quarterly quantity of CO
(3) The quarterly quantity of CO