Recommended Set Back

DISCLAIMER This handbook is intended to provide a selective summary of some of the applicable considerations with respect to TransGas Limited (“TransGas”) or SaskEnergy Incorporated (“SaskEnergy”) natural gas pipeline setbacks and corridors. It is not a complete summary of all applicable considerations, and it is not a substitute for the full text of the applicable acts and regulations. Requirements change over time. It is the reader's responsibility to ensure that all requirements have been met before initiating any project. All recommendations include an assessment of risk and projected outcomes, which may not be acceptable to all users, in all circumstances. The reader is invited to contact SaskEnergy or TransGas, or to seek independent evaluations, as required. TransGas Limited Transmission Pipeline TransGas transmission pipelines operate at high pressures of 251 to 3000 psig. Setbacks designed to achieve an absolute safety standard would be very large, and several multiples of the distances outlined below. The following setbacks are derived from a probability based risk assessment and are the minimum offsets that TransGas would generally recommend. They should be measured from the edge of TransGas pipeline right of ways to any development or from the edge of a parcel containing a storage cavern to any development. TransGas recommends that third parties and municipalities obtain and evaluate an independent engineering assessment prior to infringing on these recommended setback distances in any instance. Canada Energy Regulator (federally) regulated pipelines effectively require consent of the operator prior to excavation within 30 metres of the pipeline. 1 Ministry of Economy (provincially) regulated pipelines require notification to the operator prior to ground disturbance within 30 metres of the pipeline, and consent of the operator within 10 metres of the right of way, or within 15 metres of the pipeline if there is no right of way. 2 Pipe diameter is stated in nominal pipe sizes (NPS). All measurements are from the edge of the right of way or parcel to the nearest building or structure. Pipe diameter information for any pipelines affected by your development can be obtained by contacting TransGas Crossing Coordination @ 306-777-9666 .

1 See the Canadian Energy Regulator Act Section 335(1), The Pipelines Act, 1998 Section 20, and the Canadian Energy Regulator Pipeline Damage Prevention Regulations – Authorizations Section 10.

2 See The SaskEnergy Regulations, Section 7.2.

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