| In British Columbia, the zone of protection is usually set at a distance of 300 m around the wellhead. |
| No appreciable amount of oil or gas has leaked since July 15, when valves on a newly installed cap at the wellhead were closed. |
| In victory, Mr Morales said he would revoke the firms' ownership of gas at the wellhead, and seek service contracts with them instead. |
| The excavators are unsure what it is, with several suggestions of cold store, wine cellar, privy and wellhead. |
| W isconsin effectively requires a plan for new wells by virtue of a separate wellhead protection plan for new wells. |
| Price controls at the wellhead in America held back the development of new supplies. |
