Q-2, r. 35.2 - Water Withdrawal and Protection Regulation

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39. The person responsible for the drilling site must construct, at a distance of not more than 30 m from the drilling well, 3 observation wells for taking water samples. One of the wells must be located hydraulically upgradient from the drilling site while the other 2 must be located hydraulically downgradient.
The water samples taken must make it possible to assess the quality of the groundwater withdrawn or likely to be withdrawn, as well as groundwater that may affect aquatic ecosystems associated with a lake or watercourse.
O.C. 696-2014, s. 39; I.N. 2014-09-01; O.C. 871-2020, s. 15.
39. For the analysis provided for in subparagraph 3 of the third paragraph of section 37, the person responsible for the drilling site must construct an observation well or observation wells for groundwater for the withdrawal of water samples representative of the quality of the groundwater used or likely to be used for human consumption or food processing purposes, in particular the water in the lower and higher parts of the aquifers collected in the hydrogeological survey referred to in section 38.
The well or wells must be constructed as follows:
(1)  if only one well is constructed, it must have multiple levels and must be located less than 30 m from the planned drilling site, at the hydraulic downstream;
(2)  if a number of wells are constructed, there must be a minimum of 3 and they must be located
(a)  less than 30 m from the limits of the planned drilling site;
(b)  at the hydraulic upstream of the drilling site for one of them and at the hydraulic downstream for the others.
The water samples must be taken in each observation well before the drilling of the surface casing of the drilling site.
The analysis results of the samples taken must be sent to the Minister as soon as possible.
O.C. 696-2014, s. 39; I.N. 2014-09-01.