Recommended Setback to development reference (m) from edge of Right of Way Land Use Residential Commercial* Industrial*
Low / Very Low Density
Medium / Low Density
High Density
Medium Density
High Density
High / Low Density
Diameter (NPS)
20 16 14 12 10
145 110 100
145 110 100
140
125
70 10 10 10 10 10 10 10 10 10
80 15 10 10 10 10 10 10 10 10
95 80 60 40 10 10 10 10 10
95 85 70 60 35 25 20 20 15
85 70 50 40 30 25 20
85 70 50 40 30 25 20
8 6 4 3 2
Storage Cavern
500
250
200
175
125
150
Land Use
Corresponding Activity Zone
Density
Industrial areas with effective occupancy levels of 25 people per hectare or greater. Industrial areas with effective occupancy levels of 0 to 25 people per hectare. Commercial areas with effective occupancy levels of 100 people per hectare or greater. Commercial areas with effective occupancy levels of 25 to 100 people per hectare. Commercial areas with effective occupancy levels of 0 to 25 people per hectare. Multi-story urban residential areas with population densities of 100 people per hectare (4000 dwelling units per square kilometer) or greater. Suburban residential areas with population densities of 25 to 100 people per hectare (1000 dwelling units per square kilometer). Rural or suburban fringe residential areas with population densities of 1.0 to 25 people per hectare (25 dwelling units per square kilometer). Rural areas with population densities of 0 to 1.0 people per hectare (4 dwelling units per square kilometer).
Industrial
High Density
Industrial
Low Density
Commercial High Density
Medium Density
Commercial
Commercial Low Density
Residential
High Density
Medium Density
Residential
Residential
Low Density
Very Low Density
Residential
• Use of the largest setback for the associated pipe diameter is recommended for industrial installation or hazardous material storage where the release of gas from the pipeline can cause the industrial installation to produce a dangerous or environmentally hazardous condition. Use of the largest setback for the associated pipe diameter is recommended for buildings with human occupancy where rapid evacuation may be difficult (e.g. nursing homes, hospitals, etc..). • Green cells indicate that TransGas’ minimum setback recommendation of 10 meters is applicable. Unless otherwise specified a recommended minimum setback of 10 meters applies to the nearest building or structure regardless of density.
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