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O. Reg. 306/17: EFFLUENT MONITORING AND EFFLUENT LIMITS - METAL MINING SECTOR

filed July 28, 2017 under Environmental Protection Act, R.S.O. 1990, c. E.19

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ontario regulation 306/17

made under the

Environmental Protection Act

Made: July 26, 2017
Filed: July 28, 2017
Published on e-Laws: July 31, 2017
Printed in The Ontario Gazette: August 12, 2017

Amending O. Reg. 560/94

(EFFLUENT MONITORING AND EFFLUENT LIMITS - METAL MINING SECTOR)

1. Schedules 1 to 3 of Ontario Regulation 560/94 are revoked and the following substituted:

Schedule 1
Process Effluent Limits and Monitoring Frequency (All existing and new plants)

Item

Column 0.1

Analytical test group

Column 1

Parameter

Column 2

Monitoring frequency

Column 3

Daily concentration limit (mg/L)

Column 4

Monthly average concentration limit

1.

2

Total Cyanide

Thrice weekly

2

1

2.

8

Total Suspended Solids (TSS)

Thrice weekly

30

15

3.

9

Copper

Weekly

0.6

0.3

4.

9

Lead

Weekly

0.4

0.2

5.

9

Nickel

Weekly

1

0.5

6.

9

Zinc

Weekly

1

0.5

7.

10

Arsenic

Weekly

1

0.5

SCHEDULE 2
Cooling Water Effluent Assessment Monitoring (All existing and new Plants)

Item

Column 0.1

Analytical test group

Column 1

Parameter

Column 2

Monitoring frequency

1.

8

Total Suspended Solids (TSS)

Weekly

Schedule 3
Overflow Effluent Assessment Monitoring (All Existing and New Plants)

Item

Column 0.1

Analytical test group

Column 1

Parameter

Column 2

Monitoring frequency

1.

2

Total Cyanide

Every eight-hour period

2.

8

Total Suspended Solids (TSS)

Every eight-hour period

3.

9

Copper

Every eight-hour period

4.

9

Lead

Every eight-hour period

5.

9

Nickel

Every eight-hour period

6.

9

Zinc

Every eight-hour period

7.

10.

Arsenic

Every eight-hour period

Commencement

2. This Regulation comes into force on the day it is filed.