air vent definition
air vent means an outlet at the upper end of the casing that allows for equalization of air pressure between the inside of the casing and the atmosphere and for the release of gases from the well; (“évent”)
air vent has the meaning set out in Section 40 23 00 of Appendix 6-2 [Technical Specifications];
air vent means an outlet at the upper end of a well casing, well cap or well cover that allows for the equalization of air pressure between the inside of the casing and the atmosphere, and for the release of gases from the well.