# 98.473 Calculating CO received.
(a) You must calculate and report the annual mass of CO<sub>2</sub> received by pipeline using the procedures in paragraphs (a)(1) or (a)(2) of this section and the procedures in paragraph (a)(3) of this section, if applicable.
(1) For a mass flow meter, you must calculate the total annual mass of CO<sub>2</sub> in a CO<sub>2</sub> stream received in metric tons by multiplying the mass flow by the CO<sub>2</sub> concentration in the flow, according to Equation UU-1 of this section. You must collect these data quarterly. Mass flow and concentration data measurements must be made in accordance with § 98.474.
where:
CO<sub>2T,r</sub> = Net annual mass of CO<sub>2</sub> received through flow meter r (metric tons).
Q<sub>r,p</sub> = Quarterly mass flow through a receiving flow meter r in quarter p (metric tons).
S<sub>r,p</sub> = Quarterly mass flow through a receiving flow meter r that is redelivered to another facility without being injected into your well in quarter p (metric tons).
C<sub>CO2,p,r</sub> = Quarterly CO<sub>2</sub> concentration measurement in flow for flow meter r in quarter p (wt. percent CO<sub>2</sub>, expressed as a decimal fraction).
p = Quarter of the year.
r = Receiving flow meter.
(2) For a volumetric flow meter, you must calculate the total annual mass of CO<sub>2</sub> in a CO<sub>2</sub> stream received in metric tons by multiplying the volumetric flow at standard conditions by the CO<sub>2</sub> concentration in the flow and the density of CO<sub>2</sub> at standard conditions, according to Equation UU-2 of this section. You must collect these data quarterly. Volumetric flow and concentration data measurements must be made in accordance with § 98.474.
where:
CO<sub>2T,r</sub> = Net annual mass of CO<sub>2</sub> received through flow meter r (metric tons).
Q<sub>r,p</sub> = Quarterly volumetric flow through a receiving flow meter r in quarter p at standard conditions (standard cubic meters).
S<sub>r,p</sub> = Quarterly volumetric flow through a receiving flow meter r that is redelivered to another facility without being injected into your well in quarter p (standard cubic meters).
D = Density of CO<sub>2</sub> at standard conditions (metric tons per standard cubic meter): 0.0018682.
C<sub>CO2,p,r</sub> = Quarterly CO<sub>2</sub> concentration measurement in flow for flow meter r in quarter p (vol. percent CO<sub>2</sub>, expressed as a decimal fraction).
p = Quarter of the year.
r = Receiving flow meter.
(3) If you receive CO<sub>2</sub> through more than one flow meter, you must sum the mass of all CO<sub>2</sub> received in accordance with the procedure specified in Equation UU-3 of this section.
where:
CO<sub>2</sub> = Total net annual mass of CO<sub>2</sub> received (metric tons).
CO<sub>2T,r</sub> = Net annual mass of CO<sub>2</sub> received (metric tons) as calculated in Equation UU-1 or UU-2 for flow meter r.
r = Receiving flow meter.
(b) You must calculate and report the annual mass of CO<sub>2</sub> received in containers using the procedures specified in either paragraph (b)(1) or (b)(2) of this section.
(1) If you are measuring the mass of contents in a container under the provisions of § 98.474(a)(2)(i), you must calculate the CO<sub>2</sub> received in containers using Equation UU-1 of this section.
where:
CO<sub>2T,r</sub> = Annual mass of CO<sub>2</sub> received in containers r (metric tons).
C<sub>CO2,p,r</sub> = Quarterly CO<sub>2</sub> concentration measurement of contents in containers r in quarter p (wt. percent CO<sub>2</sub>, expressed as a decimal fraction).
Q<sub>r,p</sub> = Quarterly mass of contents in containers r in quarter p (metric tons).
S<sub>r,p</sub> = Quarterly mass of contents in containers r that is redelivered to another facility without being injected into your well in quarter p (standard cubic meters).
p = Quarter of the year.
r = Containers.
(2) If you are measuring the volume of contents in a container under the provisions of § 98.474(a)(2)(ii), you must calculate the CO<sub>2</sub> received in containers using Equation UU-2 of this section.
where:
CO<sub>2T,r</sub> = Annual mass of CO<sub>2</sub> received in containers r (metric tons).
C<sub>CO2,p,r</sub> = Quarterly CO<sub>2</sub> concentration measurement of contents in containers r in quarter p (vol. percent CO<sub>2</sub>, expressed as a decimal fraction).
S<sub>r,p</sub> = Quarterly volume of contents in containers r that is redelivered to another facility without being injected into your well in quarter p (standard cubic meters).
Q<sub>r,p</sub> = Quarterly volume of contents in containers r in quarter p (standard cubic meters).
D = Density of the CO<sub>2</sub> received in containers at standard conditions (metric tons per standard cubic meter): 0.0018682.
p = Quarter of the year.
r = Containers.
[75 FR 75078, Dec. 1, 2010, as amended at 78 FR 71981, Nov. 29, 2013]