Hydro One Networks Inc. Tel: (416) 345-5393 7th Floor, South Tower Cell: (416) 902-4326 483 Bay Street Fax: (416) 345-6833 Toronto, Ontario M5G 2P5
[email protected] www.HydroOne.com Joanne Richardson Director, Major Projects and Partnerships Regulatory Affairs BY EMAIL AND E-FILE May 27, 2021 Mr. Jean-Denis Charlebois Secretary of the Commission Canadian Energy Regulator 517 Tenth Avenue SW Calgary, Alberta T2R 0A9 Dear Mr. Charlebois: File: OF-Fac- IPL-H117-2020-02 01 - Hydro One Networks Inc.’s Application to Perform Component Replacement Station Work at St. Lawrence Transmission Station Impacting International Power Lines L33P and L34P, (EC-11) & (EC-18) - Information Request Responses Please find attached Hydro One Networks Inc.'s ("Hydro One") responses to the Canadian Energy Regulator’s Information Requests received May 20, 2021, in regards to Hydro One's Application pursuant to section 69 of the Canadian Energy Regulator Act, to perform station and related facilities work at St. Lawrence Transmission Station (“TS”) impacting International Power Lines (“IPL”s) L33P and L34P in Cornwall, Ontario. File: OF-Fac- IPL-H117-2020-02 01. An electronic copy of the Information Request Responses has been filed using the Canadian Energy Regulator’s electronic submission system. Sincerely, Joanne Richardson Cc: Julia Gonzalez and Whitney Punchak - CER Staff Filed: 2021-05-27 L33P and L34P Exhibit I Tab 1 Schedule 1 Page 1 of 8 1 CER INTERROGATORY #1 2 3 Reference: 4 Environment Matters 5 Project Activities and Potential Soil Contamination 6 i. Hydro One, Application to Perform Component Replacement Work at St.