Q-2, r. 22 - Regulation respecting waste water disposal systems for isolated dwellings

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87.31. Collection of samples: Samples for the analysis of CBOD5, SS and total phosphorous must be of the composite type and be collected over 24 hours, so as to obtain the average value of the parameter under study.
The collection of samples for the analysis of fecal coliforms must be carried out at random.
O.C. 786-2000, s. 69.