§98.65. Procedures for estimating missing data.
40 C.F.R. § 98.65
A complete record of all measured parameters used in the GHG emissions calculations is required. Therefore, whenever a quality-assured value of a required parameter is unavailable (e.g., if a meter malfunctions during unit operation or if a required sample measurement is not taken), a substitute data value for the missing parameter shall be used in the calculations, according to the following requirements:
Where anode or paste consumption data are missing, CO2 emissions can be estimated from aluminum production by using Equation F-9 of this section.
For other parameters, use the average of the two most recent data points after the missing data.
Notes, amendments, and revision history
Amendments
[74 FR 56374, Oct. 30, 2009, as amended at 75 FR 79156, Dec. 17, 2010; 81 FR 89253, Dec. 9, 2016]
Authority
Authority: 42 U.S.C. 7401-7671q.
Source
Source: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.
Amendments
[74 FR 56374, Oct. 30, 2009, as amended at 75 FR 79156, Dec. 17, 2010; 81 FR 89253, Dec. 9, 2016]