https://open.alberta.ca/dataset/e8c23e06-5b45-4fbe-86b8-726a86b12238/resource/a95cc618-6ec1-4f54-85d6-9edc9868e9c9/download/2013-716-a10.pdf
[Accessed: 08.03.2019]
This workbook, compiled by Agriculture and Agri-Food Canada, and the Government of Alberta, contains 12 modules helping you to ensure long-term operability of your well. Regarding well protection, particularly modules 6, 8, 9 and 10 are of interest.