---
kind: "section"
citation: "40 C.F.R. § 98.486"
title: "40"
number: "98.486"
heading: "Data reporting requirements."
url: "https://uscodex.org/cfr/40/98.486"
---

# §98.486. Data reporting requirements.


In addition to the information required by [§ 98.3(c)](/cfr/40/98.3.md?p=c), the annual report shall contain the following information, as applicable:

- (a) **The annual quantity of associated storage in metric tons of CO<I>2</I> (<I>m</I><I>stored</I>).**
- (b) The density of CO2 if volumetric units are converted to mass in order to be reported for annual quantity of CO2 stored.
- (c) The annual quantity of CO2 input (minput) and the information in paragraphs [(c)(1)](#c-1) and [(2)](#c-2) of this section.
  - (1) The annual total mass of CO2 received at the custody transfer meter by the CO2-EOR project, including CO2 transferred from another CO2-EOR project (mreceived).
  - (2) The annual mass of native CO2 produced and captured in the CO2-EOR project (mnative).
- (d) **The annual mass of CO<I>2</I> that is recycled and reinjected into the EOR complex.**
- (e) The annual total mass of CO2 loss from project operations (mloss operations), and the information in [paragraphs (e)(1) through (4)](#e-1..e-4) of this section.
  - (1) Loss of CO2 due to leakage from production, handling, and recycling CO2-EOR facilities (infrastructure including wellheads) (mloss leakage facilities).
  - (2) **Loss of CO<I>2</I> from venting/flaring from production operations (<I>m</I><I>loss vent/flare</I>).**
  - (3) Loss of CO2 due to entrainment within produced gas/oil/water when this CO2 is not separated and reinjected (mloss entrained).
  - (4) Loss of CO2 due to any transfer of CO2 outside the CO2-EOR project (mloss transfer).
- (f) **The total mass of CO<I>2</I> loss from the EOR complex (<I>m</I><I>loss EOR complex</I>).**
- (g) Annual documentation that contains the following components as described in Clause 4.4 of CSA/ANSI ISO 27916:19 (incorporated by reference, see [§ 98.7](/cfr/40/98.7.md)):
  - (1) The formulas used to quantify the annual mass of associated storage, including the mass of CO2 delivered to the CO2-EOR project and losses during the period covered by the documentation (see Clause 8 and Annex B of CSA/ANSI ISO 27916:19 (incorporated by reference, see [§ 98.7](/cfr/40/98.7.md))).
  - (2) The methods used to estimate missing data and the amounts estimated as described in Clause 9.2 of CSA/ANSI ISO 27916:19 (incorporated by reference, see [§ 98.7](/cfr/40/98.7.md)).
  - (3) The approach and method for quantification utilized by the operator, including accuracy, precision, and uncertainties (see Clause 8 and Annex B of CSA/ANSI ISO 27916:19 (incorporated by reference, see [§ 98.7](/cfr/40/98.7.md))).
  - (4) A statement describing the nature of validation or verification including the date of review, process, findings, and responsible person or entity.
  - (5) Source of each CO2 stream quantified as associated storage (see Clause 8.3 of CSA/ANSI ISO 27916:19 (incorporated by reference, see [§ 98.7](/cfr/40/98.7.md))).
  - (6) A description of the procedures used to detect and characterize the total CO2 leakage from the EOR complex.
  - (7) If only the mass of anthropogenic CO2 is considered for mstored, a description of the derivation and application of anthropogenic CO2 allocation ratios for all the terms described in Clauses 8.1 to 8.4.6 of CSA/ANSI ISO 27916:19 (incorporated by reference, see [§ 98.7](/cfr/40/98.7.md)).
  - (8) Any documentation provided by a qualified independent engineer or geologist, who certifies that the documentation provided, including the mass balance calculations as well as information regarding monitoring and containment assurance, is accurate and complete.
- (h) Any changes made within the reporting year to containment assurance and monitoring approaches and procedures in the EOR operations management plan.

## Notes

### Source

Source: 89 FR 31948, Apr. 25, 2024, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7401-7671q.

### Source

Source: 74 FR 56374, Oct. 30, 2009, unless otherwise noted.