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Table 2

Effluent parameters objectives and limits as per the ECA

	Concentrations in mg/L unless otherwise indicated
Plant (Technology)	Effluent parameters limits		Effluent parameters objectives
RBC-1 Facility (RBC)	CBOD₅ < 15		CBOD₅ < 10
	TSS < 15		TSS < 10
	TP < 1		TP < 0.8
	6.0 < pH < 9.5		6.5 < pH < 9.0
RBC-2 Facility (RBC)	N/A		CBOD₅ < 20
			TSS < 20
			TN < 19
RBC-3 Facility (RBC)	CBOD₅ < 10		CBOD₅ < 5
	TSS < 10		TSS < 5
	TP < 0.3		TP < 0.2
	TP, _Freezing_* < 0.8		TP, _Freezing_* < 0.5
	TAN < 3		TAN < 2
	TAN, Freezing* < 5		TAN, Freezing* < 4
	DO > 4		DO > 5
	E.coli < 200 org/mL		E.coli < 150 org/mL
	6.0 < pH < 9.5		6.5 < pH < 8.5
SBR-1 facility (SBR)	CBOD₅ < 15		CBOD₅ < 12
	TSS < 15		TSS < 12
	TAN + NO₃-N < 4.2		TAN + NO₃-N < 3.5
	6.0 < pH < 9.5		6.5 < pH < 8.5
SBR-2 facility (SBR)	CBOD₅ < 10		CBOD₅ < 5
	TSS < 10		TSS < 7
	TP < 5		TP < 2
	TAN + NO₃-N < 10		TAN + NO₃-N < 5
MBR facility (MBR)	BOD₅ < 10		BOD₅ < 5
	TSS < 10		TSS < 5
	TP < 0.3		TP < 0.2
	TAN < 1.5		TAN < 1
	TAN, _Freezing_* < 4		TAN, _Freezing_* < 3
	E.coli < 100 cfu/100 mL		E.coli < 150 cfu/100 mL
Lagoon facility (Lagoon/MBBR)	CBOD₅ < 20^†	CBOD₅ < 15^‡	CBOD₅ < 15^†	CBOD₅ < 10^‡
	TSS < 24^†	TSS < 15^‡	TSS < 15^†	TSS < 10^‡
	TP < 0.5^†	TP < 0.3^‡	TP < 0.3^†	TP < 0.15^‡
	N/A^†	TAN < 3^‡	TAN < 3^†	TAN < 3^‡
	N/A^†	TAN, _Freezing_** < 6^‡	TAN, _Freezing_** < 8^†	TAN, _Freezing_** < 6^‡
	6.0 < pH < 9.5		6.5 < pH < 8.5
	E.coli < 200 cfu/100 mL (geometric mean density from May 15 -September 15)
EAAS facility (EAAS)	CBOD < 25		CBOD < 15
	TSS < 25		TSS < 15
	TP < 1.5		TP < 1
	TAN < 5.0		TAN < 3.0
	6.0 < pH < 9.5		6.5 < pH < 9.0

	Concentrations in mg/L unless otherwise indicated
Plant (Technology)	Effluent parameters limits		Effluent parameters objectives
RBC-1 Facility (RBC)	CBOD₅ < 15		CBOD₅ < 10
	TSS < 15		TSS < 10
	TP < 1		TP < 0.8
	6.0 < pH < 9.5		6.5 < pH < 9.0
RBC-2 Facility (RBC)	N/A		CBOD₅ < 20
			TSS < 20
			TN < 19
RBC-3 Facility (RBC)	CBOD₅ < 10		CBOD₅ < 5
	TSS < 10		TSS < 5
	TP < 0.3		TP < 0.2
	TP, _Freezing_* < 0.8		TP, _Freezing_* < 0.5
	TAN < 3		TAN < 2
	TAN, Freezing* < 5		TAN, Freezing* < 4
	DO > 4		DO > 5
	E.coli < 200 org/mL		E.coli < 150 org/mL
	6.0 < pH < 9.5		6.5 < pH < 8.5
SBR-1 facility (SBR)	CBOD₅ < 15		CBOD₅ < 12
	TSS < 15		TSS < 12
	TAN + NO₃-N < 4.2		TAN + NO₃-N < 3.5
	6.0 < pH < 9.5		6.5 < pH < 8.5
SBR-2 facility (SBR)	CBOD₅ < 10		CBOD₅ < 5
	TSS < 10		TSS < 7
	TP < 5		TP < 2
	TAN + NO₃-N < 10		TAN + NO₃-N < 5
MBR facility (MBR)	BOD₅ < 10		BOD₅ < 5
	TSS < 10		TSS < 5
	TP < 0.3		TP < 0.2
	TAN < 1.5		TAN < 1
	TAN, _Freezing_* < 4		TAN, _Freezing_* < 3
	E.coli < 100 cfu/100 mL		E.coli < 150 cfu/100 mL
Lagoon facility (Lagoon/MBBR)	CBOD₅ < 20^†	CBOD₅ < 15^‡	CBOD₅ < 15^†	CBOD₅ < 10^‡
	TSS < 24^†	TSS < 15^‡	TSS < 15^†	TSS < 10^‡
	TP < 0.5^†	TP < 0.3^‡	TP < 0.3^†	TP < 0.15^‡
	N/A^†	TAN < 3^‡	TAN < 3^†	TAN < 3^‡
	N/A^†	TAN, _Freezing_** < 6^‡	TAN, _Freezing_** < 8^†	TAN, _Freezing_** < 6^‡
	6.0 < pH < 9.5		6.5 < pH < 8.5
	E.coli < 200 cfu/100 mL (geometric mean density from May 15 -September 15)
EAAS facility (EAAS)	CBOD < 25		CBOD < 15
	TSS < 25		TSS < 15
	TP < 1.5		TP < 1
	TAN < 5.0		TAN < 3.0
	6.0 < pH < 9.5		6.5 < pH < 9.0

*Freezing Limit is from December 1 to April 30.

**Freezing Limit is from November 1 to April 30.

^†ECA limits and objectives from January 1, 2017 – November 22, 2017.

^‡ECA limits and objectives from November 23, 2017 – December 31, 2017.