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Wastewater Systems Effluent Regulations (SOR/2012-139)

Regulations are current to 2020-10-05 and last amended on 2015-01-01. Previous Versions

SCHEDULE 2(Section 4, subsections 18(1), 24(2), 25(1) and 26(2))System of Points — Final Discharge Point

Interpretation

  • Marginal note:Definitions

    1 The following definitions apply in this Schedule.

    bulk flow ratio

    bulk flow ratio means the ratio of the average rate of flow of a watercourse during a year to the average rate of flow of effluent that is deposited in that watercourse during that year. (coefficient de débit brut)

    marine port waters

    marine port waters means the waters of a well-flushing sea port. (eaux d’un port maritime)

    open marine waters

    open marine waters, in relation to a final discharge point, means salt waters in an area defined by an arc of 135° extending 20 km from the point of entry in relation to the final discharge point, if there is no land within that area. (eaux libres en milieu marin)

    TABLE

    ItemColumn 1Column 2Column 3
    Conditions and WaterCriteriaPoints
    1Average daily volume of effluent, expressed in m3, deposited during the period of 12 consecutive months referred to in subsection 24(1) of these Regulations upon which the application is based
    • (a) > 100 and ≤ 500

    5 points
    • (b) > 500 and ≤ 2 500

    10 points
    • (c) > 2 500 and ≤ 17 500

    15 points
    • (d) > 17 500 and ≤ 50 000

    25 points
    35 points
    2The average carbonaceous biochemical oxygen demand (CBODA) due to the quantity of CBOD matter in the effluent and the average concentration of suspended solids (SSA) in the effluent, both expressed in mg/L, during the period of 12 consecutive months referred to in subsection 24(1) of these Regulations upon which the application is based(CBODA + SSA)/5points as per formula in column 2
    3If, during the period of 12 consecutive months referred to in subsection 24(1) of these Regulations upon which the application is based, chlorine, or one of its compounds, was used in the treatment of wastewater in the wastewater system, as applicable, paragraph (a) or (b) of Column 2
    • (a) average concentration of total residual chlorine in the effluent deposited via the final discharge point is > 0.02 mg/L

    10 points
    • (b) effluent is not dechlorinated before it is deposited

    10 points
    4The maximum concentration of un-ionized ammonia, expressed in mg/L as nitrogen (N), in the effluent deposited during the period of 12 consecutive months referred to in subsection 24(1) of these Regulations upon which the application is based≥ 1.25 at 15°C ± 1°C20 points
    5Water where effluent is deposited via the final discharge point (highest value that applies)
    • (a) open marine waters

    5 points
    • (b) marine port waters

    10 points
    • (c) lake, natural wetland, reservoir, estuary, enclosed bay

    20 points
    • (d) watercourse with bulk flow ratio >100

    15 points
    • (e) watercourse with bulk flow ratio ≥10 and ≤100

    20 points
    • (f) watercourse with bulk flow ratio <10

    25 points
    • (g) shellfish harvesting area within 500 m of the point of entry where effluent is deposited in the water via the final discharge point

    20 points
 
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