Enbridge Gas Inc. Enbridge Gas Distribution Inc. 2015 Countryside Dr Relocation 11/25/2015 Toronto and Region Conservation Authority permit, PUCC municipal consent, MNRF Letter of Advice No No Creek Crossing- Tributary of the west Humber River, Species at Risk (SAR) Horizontal Directional Drill (HDD) of the creek to avoid disturbance. Erosion and Sediment controls (ESC) in place. HDD contingency plan prepared. Brampton The city of Brampton required Enbridge to move their existing gas main to accommodate the road widening. A section of pipe was attached to the bridge that the city would be repairing. The creek crossing was classified as habitat for SAR. EGD installed a new gas pipeline through HDD underneath the creek. The pipeline alignment was changed and additional pipe was added to accommodate the road widening. The HDD entry and exit pits were set back 30m from the bank full width to comply with the Ministry of Natural Resources and Forestry (MNRF) requirements. No 244297 61086 183211 300 N/A N/A N/A N/A N/A N/A Construction scheduling constraints - extra scope N/A N/A N/A No outstanding concerns. Final restoration was to be completed by the city after the road widening activities are complete. N/A N/A N/A Enbridge Gas Inc. Enbridge Gas Distribution Inc. 2016 60.8636888.15 - Portage Road 5/4/2016 All permits obtained: MNRF, CP Rail, Town of Petawawa Municipal Permit and County of Renfrew Permit No No Possible wood turtle (endangered species), watercourse crossing, old rail right-of-way (rail tracks were removed). Environmental consultant was hired to determine likelihood of wood turtle and wood turtle habitat. Based on results of environmental screening by the consultant, mitigation was proposed, which included: 1. Construction to occur after October 1; 2. Erect exclusion fencing to limit turtle activity within construction area and to promote turtles to use adjacent natural features for migration; 3. If turtles are discovered, safely move turtles out of construction zone and place downstream of activities and 4. Provide awareness to workers about wood turtle. Horizontal Direction Drill (HDD) over culvert, sediment fencing around entry and exit pits. Portage Road, Petawa Because of rail crossing, rail company initially required us to install at an increased depth in case a future railway was constructed. Afterwards, rail company confirmed we could install at standard depth because no future rail way would be constructed. Test holes confirmed that there was space available for the main to be installed over the culvert while maintaining clearances. Installing the gas main over the culvert allowed for simplified construction installation and avoided future challenges with maintaining the main at approximately 6 m depth. None. 1805815 519795 1286020 247 N/A N/A N/A N/A N/A N/A Construction was undertaken during winter due to t N/A N/A N/A N/A N/A N/A N/A The alternative route evaluated started off the existing 2?PE IP main on Portage Rd. at Dustin Drive to feed the new customer at 248 Portage and the new subdivision. After running an analysis, this was not feasible with the large load the customer required for their asphalt plant, subdivision and future concrete plant. The existing pipe sizes were not large enough to handle the new load, hence why the pipe tied in with a new district station off of the 8? XHP main on Petawawa Blvd. and ran 6? pipe all the way down Portage Rd. to feed this customer. Enbridge Gas Inc. Enbridge Gas Distribution Inc. 2017 40 JT DANTONBURY PH 4 6/6/2017 Conservation Authority Permit obtained. Yes No 1. Small Watercourse 2. Species at Risk (SAR) identified. Sediment and Erosion Control (ESC) measures were installed per Conservation Authority Permit specifications. SAR screening was completed for one (1) identified species of concern. To minimize habitat disturbance, no trees were removed. A nest sweep was conducted prior to commencement of construction to ensure no SAR were nesting around the construction area. Brittania Avenue and None. N/A N/A 351977 386630 34653 -9 N/A N/A N/A N/A N/A N/A Outstanding gas services to install for residentia N/A N/A N/A N/A N/A N/A N/A Variance Explanation: Outstanding gas services to install for residential homes. Enbridge Gas Inc. Enbridge Gas Distribution Inc. 2018 12638096 9/29/2018 MC permit/cut permit. No additional approvals required to deal with contaminated soil. Soil Samples were taken and used for disposal where necessary. No No Pipeline reinforcement was within the municipality road right of way. Contaminated soil was known to occur in the area. When contaminated soil is encountered it would be removed by a licensed hauler and disposed of at the licensed City?s Trail Road Landfill. The construction area would then be backfilled with clean soil. Lees Ave, Ottawa No concerns raised. The action plan developed was agreed upon by all involved parties. An Environmental Consultant was hired to take soil samples and develop a summary report which was reviewed by the Environmental Health & Safety team. The areas with contaminated soil were identified. The original proposed alignment was modified to avoid as much contamination as possible. Areas where contamination was still present and unavoidable were dealt with by removing the soils with a licensed hauler and shipping it to a licensed facility. Clean soil was brought in to use as backfill in those areas. No post-construction issues. 1068667 765975 302692 0.4 NA NA NA Contaminated soils still present Crossing of a watercourse Crossing of a watercourse Changing the alignment and handling of contaminate NA Increased project costs increased project costs No concerns with how contaminated soil was dealt with. PPE for dealing with contaminated soil was instructed in the environmental consultants report and communicated to construction crew. Crossing of a major Highway NA NA Enbridge Gas Inc. Enbridge Gas Inc. 2019 ERIN IP REINFORCEMENT - 20015404 12/4/2019 All permits/approvals obtained and saved in project file. Environmental applications sent to GRCA and CVCA - AS PER CVCA permit not required No No Fill Regulated Area Erosion and Sediment Controls (Sediment Soxx) and horizontal direction drill method (HDD) utilized Trafalger Road, Erin None N/A Spring restoration to be completed 827611 1322630 495019 -37 N/A N/A N/A Fill Regulated Area Credit River N/A Contingency wasn’t used N/A Significantly higher estimate (4.7 million) N/A N/A N/A Historical Heritage Features, downtown Erin N/A Environmental costs included in overall project costs. Variance Explanation Additional Information: Contingency wasn’t used Restoration Carried Over to this Spring Ground conditions – construction was in prime drilling ground allowing for increased drilling production. Previous work in the area identified this area as being potentially difficult for drilling and this is how cost estimate was established Enbridge Gas Inc. Enbridge Gas Inc. 2020 Lower Baseline Rd. Reinforcement - 17-20-336-5458 12/16/2020 All permits and registrations are saved in OEB RRR folder. Yes No 2 Watercourse crossings Conservation Halton Permit and Conditions Erosion and sediment controls Horizontal Directional Drill Hamilton District No N/A No 154986 164134 -9148 -6 New subdivision N/A N/A 2 N/A N/A minor variance N/A N/A N/A N/A 1 N/A N/A Environmental plan mitigation costs are included in total project costs (provided below). Enbridge Gas Inc. Enbridge Gas Inc. 2021 Lakeside Landing (Presqu'ile Parkway) 9/18/2021 All approvals saved in project files. No No Two watercourse crossings - one watercourse crossed by trenching overtop of culvert - other crossing method completed by Horizontal Directional Drill (HDD) - installation of erosion and sediment controls Eastern Region None N/A None 66570 136011 -69440 -51 3 3 N/A 1 2 N/A Favourable ground conditions. 1 2 N/A None 1 2 N/A Variance Comments: - Efficiencies from favorable ground conditions allowing for the majority of the project to be installed using directional drill resulting in decreased manpower, simplified traffic control and less clean up costs. Alternative 1 (Least Impact) Comments: - Commence at a tie-in to an existing NPS 2 and proceed on the south side of Presqu'ile Parkway and north on the east side of Lakeshore Rd. to the end point - Remaining on the south side avoided existing conflicts in the right of way of the north side. Alternative 2 (Moderate Impact) Comments: - Commence at a tie-in to an existing NPS 2 and proceed on the north side of Presqu'ile Parkway and north on the east side of Lakeshore Rd. to the end point - Installing the pipeline on the north side of the road would interfere with existing conflicts in the RoW. Enbridge Gas Inc. Enbridge Gas Inc. 2022 East of Yonge St, South of Bloor St E 8/26/2022 All required permits and approvals obtained and saved in project folder Yes No none n/a 55 Charles St E n/a n/a n/a 94125 100194 -6070 -6 n/a n/a n/a n/a n/a n/a Remaining costs associated with restoration. n/a n/a n/a n/a n/a n/a n/a none Enbridge Gas Inc. Enbridge Gas Inc. 2023 3814 - 3802 Bloor St. W. 3/21/2023 All required permits and approvals obtained and saved in project folder. Yes No No significant features identified Not applicable Toronto None Not applicable Not applicable 110441 101541 8900 9 Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable See comments above. Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable No alternate routes were considered, as any alternate route option would have been considerably more costly to install. The closest gas main that could supply the gas to the site was chosen as such. Variance Explanation: Winter premium and paid duty officer costs not included in estimate. Enbridge Gas Inc. Enbridge Gas Inc. 2024 Kylemore Community South Village Ph1A - 4134 16th 10/23/2024 Yes Yes No None N/A Markham None N/A N/A 360857 341147 19710 6 N/A N/A N/A N/A N/A N/A Additional costs from multiple returns to site N/A N/A N/A N/A N/A N/A N/A Enbridge Gas Inc. Union Gas Limited 2015 Fourth Line and Spears Pipeline Project 9/30/2015 Permit obtained from Conservation Halton. Yes No 1 Watercourse Dam and Pump. Hamilton District Possible sediment release within watercourses. Watercourse monitored during Dam and Pump operation. No sediment release. None 0 0 0 0 1 N/A N/A 2 N/A N/A Incorporated in project costs 1 N/A N/A None 2 N/A N/A Enbridge Gas Inc. Union Gas Limited 2016 Sudbury Lateral Replacement Section 1B 10/1/2016 Permit obtained from Conservation Sudbury. Yes No Regulated Area - Crossing Watercourse. Installation of sediment fencing. Follow Union Gas/DFO endorsed Generic Sediment Control Plan - Dam and Pump Crossing. Sudbury District Possible sediment release into watercourse. Conditions monitored during construction. Maintain sediment control. No sediment release. None. 0 0 0 0 1 NA NA 3 NA NA NA 2 NA NA None. 1 NA NA Enbridge Gas Inc. Union Gas Limited 2017 Limestone Rd. Pipeline Installation 11/1/2017 Attached Niagara Escarpment Commission Permit. Yes No Working within Niagara Escarpment Commission (NEC). Installation of sediment fencing. To protect against sedimentation in watercourses. Acquired permit from the NEC. Hamilton District Possible sediment release into watercourse. Conditions monitored during construction. Maintain sediment control. No sediment release. None 0 0 0 0 1 NA NA 1 NA NA NA 1 NA NA None 1 NA NA Enbridge Gas Inc. Union Gas Limited 2018 5717 Guelph Line Pipeline Installation 12/19/2018 Conservation Halton permit, NEC permit, Municipal permit in conjunction with the Union Gas Stream Crossing Review. Yes No 1 Watercourse Crossing Installation of sediment fencing, removal of excavated material. Follow Union Gas/DFO endorsed Generic Sediment Control Plan - Horizontal Direction Drill found in the Stream Crossing Review. Follow conditions of the Conservation Halton and Niagara Escarpment Commission (NEC) permits. Hamilton District Possible sediment release into watercourse. Conditions monitored during construction. Maintain sediment control. No sediment release. None. 0 0 0 0 0 NA NA 1 NA NA NA 2 NA NA None. 1 NA NA Environmental Planning Mitigation Actual Costs are incorporated in project costs. EPCOR Natural Gas Limited Partnership EPCOR Natural Gas Limited Partnership 2019 No No none EPCOR Natural Gas Limited Partnership EPCOR Natural Gas Limited Partnership 2020 No No none EPCOR Natural Gas Limited Partnership EPCOR Natural Gas Limited Partnership 2021 No No none EPCOR Natural Gas Limited Partnership EPCOR Natural Gas Limited Partnership 2022 No No N/A EPCOR Natural Gas Limited Partnership EPCOR Natural Gas Limited Partnership 2023 No No none EPCOR Natural Gas Limited Partnership EPCOR Natural Gas Limited Partnership 2024 No No None