| Date Filed | Summary | Pages |
| 05/10/2024 | Notification of Construction Beginning electronically filed by Ms. Melissa L. Thompson on behalf of Columbia Gas of Ohio, Inc.. | 3 |
| 04/22/2024 | Correspondence regarding Condition No. 2 electronically filed by Ms. Melissa L. Thompson on behalf of Columbia Gas of Ohio, Inc. | 72 |
| 04/15/2024 | Notice of Compliance with Condition 3 electronically filed by Ms. Melissa L. Thompson on behalf of Columbia Gas of Ohio, Inc. | 5 |
| 04/01/2024 | Notice of withdrawal and Notice of Substitution of Counsel electronically filed by Ms. Melissa L. Thompson on behalf of Columbia Gas of Ohio, Inc. | 4 |
| 12/21/2023 | Service Notice. | 2 |
| 12/21/2023 | Staff Report of Investigation electronically filed by Mr. Andrew S. Conway on behalf of Staff of the OPSB. | 10 |
| 10/23/2023 | Reply to OPSB Staff Memo Contra Columbia's Motion for a Protective Order electronically filed by Ms. Kari D. Hehmeyer on behalf of Columbia Gas of Ohio, Inc. . | 4 |
| 10/23/2023 | Notice of Appearance of Additional Counsel electronically filed by Ms. Kari D. Hehmeyer on behalf of Columbia Gas of Ohio, Inc. | 3 |
| 10/16/2023 | Memorandum Contra Respondent's Motion for Protective Order Submitted on Behalf of the Staff of Ohio Power Siting Board electronically filed by Mrs. Kimberly M. Naeder on behalf of OPSB. | 6 |
| 10/06/2023 | Notice of Compliance with Ohio Adm.Code 4906-6-07 electronically filed by Mr. John R. Ryan on behalf of Columbia Gas of Ohio. | 3 |
| 10/06/2023 | Proof of Publication electronically filed by Mr. John R. Ryan on behalf of Columbia Gas of Ohio. | 5 |
| 10/02/2023 | Confidential Document Target: Letter of Notification filed by John Ryan on behalf of Columbus Gas of Ohio, Inc. (4 pages) | 2 |
| 09/29/2023 | Motion for Protective Order and Memorandum in Support electronically filed by Mr. John R. Ryan on behalf of Columbia Gas of Ohio. | 7 |
| 09/29/2023 | Letter of Notification - Attachment H - Part 2 electronically filed by Mr. John R. Ryan on behalf of Columbia Gas of Ohio. | 25 |
| 09/29/2023 | Letter of Notification - Attachment H - Part 1 electronically filed by Mr. John R. Ryan on behalf of Columbia Gas of Ohio. | 22 |
| 09/29/2023 | Letter of Notification - Attachment C through G electronically filed by Mr. John R. Ryan on behalf of Columbia Gas of Ohio. | 95 |
| 09/29/2023 | Letter of Notification - Attachment B - Part 2 electronically filed by Mr. John R. Ryan on behalf of Columbia Gas of Ohio. | 11 |
| 09/29/2023 | Letter of Notification - Attachment B - Part 1 electronically filed by Mr. John R. Ryan on behalf of Columbia Gas of Ohio. | 29 |
| 09/29/2023 | Letter of Notification of Columbia Gas of Ohio, Inc. (Public Version) electronically filed by Mr. John R. Ryan on behalf of Columbia Gas of Ohio. | 17 |
| 09/25/2023 | In the Matter of the Pre-Application Letter of Columbia Gas of Ohio, Inc. for the Central Columbus North High Pressure System Pipeline Project electronically filed by Mr. John R. Ryan on behalf of Columbia Gas of Ohio. | 3 |