13. (1) Each discharger shall calculate, in kilograms, a daily cooling water effluent stream loading for total suspended solids in each cooling water effluent monitoring stream of the discharger for each day on which a sample is collected under this Regulation from the stream for analysis for total suspended solids. (2) When calculating a daily stream loading under subsection (1), the discharger shall multiply, with the necessary adjustment of units to yield a result in kilograms, the analytical result obtained from the sample for total suspended solids by the daily volume of effluent, as determined under section 30, for the stream for the day. (3) Each discharger shall calculate, in kilograms, a daily cooling water effluent plant loading for total suspended solids for each day for which the discharger is required to calculate a daily cooling water effluent stream loading for total suspended solids under subsection (1). (4) For the purposes of subsection (3), a daily cooling water effluent plant loading for total suspended solids for a day is the sum, in kilograms, of the daily cooling water effluent stream loadings for total suspended solids calculated under subsection (1) for the day. (5) Where a discharger calculates only one daily cooling water effluent stream loading for total suspended solids for a day under subsection (1), the daily cooling water effluent plant loading for total suspended solids for the day for the purposes of subsection (3) is the single daily cooling water effluent stream loading for total suspended solids for the day. (6) Each discharger shall calculate, in kilograms, a monthly average cooling water effluent plant loading for total suspended solids for each month in which a sample is collected under this Regulation more than once from a cooling water effluent monitoring stream at the discharger’s plant for analysis for total suspended solids. (7) For the purposes of subsection (6), a monthly average cooling water effluent plant loading for total suspended solids for a month is the arithmetic mean of the daily cooling water effluent plant loadings for total suspended solids calculated under subsection (3) for the month.  O. Reg. 561/94, s. 13. Calculation of Loadings — Salt Evaporator Effluent

14. (1) Each discharger shall calculate, in kilograms, a daily salt evaporator effluent stream loading for total suspended solids in each salt evaporator effluent monitoring stream of the discharger for each day on which a sample is collected under this Regulation from the stream for analysis for total suspended solids. (2) When calculating a daily stream loading under subsection (1), the discharger shall multiply, with the necessary adjustment of units to yield a result in kilograms, the analytical result obtained from the sample for total suspended solids by the daily volume of effluent, as determined under section 30, for the stream for the day. (3) Each discharger shall calculate, in kilograms, a daily salt evaporator effluent plant loading for total suspended solids for each day for which the discharger is required to calculate a daily salt evaporator effluent stream loading for total suspended solids under subsection (1). (4) For the purposes of subsection (3), a daily salt evaporator effluent plant loading for total suspended solids for a day is the sum, in kilograms, of the daily salt evaporator effluent stream loadings for total suspended solids calculated under subsection (1) for the day. (5) Where a discharger calculates only one daily salt evaporator effluent stream loading for total suspended solids for a day under subsection (1), the daily salt evaporator effluent plant loading for total suspended solids for the day for the purposes of subsection (3) is the single daily salt evaporator effluent stream loading for total suspended solids for the day. (6) Each discharger shall calculate, in kilograms, a monthly average salt evaporator effluent plant loading for total suspended solids for each month in which a sample is collected under this Regulation more than once from a salt evaporator effluent monitoring stream at the discharger’s plant for analysis for total suspended solids. (7) For the purposes of subsection (6), a monthly average salt evaporator effluent plant loading for total suspended solids for a month is the arithmetic mean of the daily salt evaporator effluent plant loadings for total suspended solids calculated under subsection (3) for the month.  O. Reg. 561/94, s. 14. Calculation of Concentrations — Process Effluent

15. (1) Each discharger shall calculate, in milligrams per litre, a monthly average concentration for total suspended solids in each process effluent monitoring stream of the discharger for each month. (2) For the purposes of subsection (1), a monthly average concentration for total suspended solids for a month is the arithmetic mean of the analytical results obtained for total suspended solids from the samples collected under section 22 from the stream for the month. (3) Where there is only one analytical result obtained for total suspended solids from the stream for a day, the daily concentration for total suspended solids for the stream for the day for the purposes of subsection (1) is the single analytical result obtained for total suspended solids.  O. Reg. 561/94, s. 15. Calculation of Concentrations — Cooling Water Effluent

16. (1) Each discharger shall calculate, in milligrams per litre, a monthly average concentration for total suspended solids in each cooling water effluent monitoring stream of the discharger for each month. (2) For the purposes of subsection (1), a monthly average concentration for total suspended solids for a month is the arithmetic mean of the analytical results obtained for total suspended solids from the samples collected under section 28 from the stream for the month.  O. Reg. 561/94, s. 16. Calculation of Concentrations — Salt Evaporator Effluent

17. (1) Each discharger shall calculate, in milligrams per litre, a monthly average concentration for total suspended solids in each salt evaporator effluent monitoring stream of the discharger for each month in which a sample is collected under this Regulation from the stream for analysis for total suspended solids. (2) For the purposes of subsection (1), a monthly average concentration for total suspended solids for a month is the arithmetic mean of the analytical results obtained for total suspended solids from the samples collected under section 29 from the stream for the month.  O. Reg. 561/94, s. 17. PART IV   PARAMETER AND LETHALITY LIMITS Parameter Limits

18. (1) Each discharger shall ensure that each analytical result obtained for total suspended solids under section 22 from each sample collected from a process effluent monitoring stream at the discharger’s plant does not exceed 50 milligrams per litre. (2) Each discharger shall ensure that each monthly average concentration calculated for total suspended solids under section 15 in connection with the discharger’s plant does not exceed 25 milligrams per litre. (3) Subject to subsection (4), each discharger shall control the quality of each process effluent monitoring stream at the discharger’s plant to ensure that the pH value of any sample collected at a process effluent sampling point at the plant is within the range of 6.0 to 9.5. (4) Throughout any day on which a discharger has used an alternate sampling point on a process effluent monitoring stream for sampling required by section 24, as permitted by subsections 24 (5) and (6), the discharger, (a) shall control the quality of the stream to ensure that the pH value of any sample collected at the alternate sampling point on the stream is within the range of 6.0 to 9.5; and (b) need not comply with subsection (3) with respect to the stream.  O. Reg. 561/94, s. 18. Lethality Limits