GROUPE CRH CANADA INC./CRH CANADA GROUP INC. - Permit to take water

This proposal is for a Permit to Take Water for GROUPE CRH CANADA INC./CRH CANADA GROUP INC. Water will be taken from one well for construction dewatering purposes at the Milton Quarry site. Details of the water taking are as follows:

Application type: renewal

Source name: central sump dewatering, long-term conditions (pond)

• purpose: aggregate washing
• maximum rate of per minute (litres): 72,000
• maximum number of hours of taking a day: 24
• maximum volume per day (litres): 103,680,000
• maximum number of days of taking in a year: 365
• earliest calendar date of taking (mm/dd): January 1
• latest calendar date of taking (mm/dd): December 31
• period of taking: up to 10 years

Source name: main quarry discharge, interim conditions (pond)

• purpose: aggregate extraction
• maximum rate of per minute (litres): 12,000
• maximum number of hours of taking a day: 24
• maximum volume per day (litres): 17,280,000
• maximum number of days of taking in a year: 365
• earliest calendar date of taking (mm/dd): January 1
• latest calendar date of taking (mm/dd): December 31
• period of taking: up to 10 years

Source name: north quarry and extension areas (pond)

• purpose: aggregate extraction
• maximum rate of per minute (litres): 45,000
• maximum number of hours of taking a day: 24
• maximum volume per day (litres): 64,800,000
• maximum number of days of taking in a year: 365
• earliest calendar date of taking (mm/dd): January 1
• latest calendar date of taking (mm/dd): December 31
• period of taking: up to 10 years

Source name: operations water use, long-term conditions (pond)

• purpose: site rehabilitation
• maximum rate of per minute (litres): 12,000
• maximum number of hours of taking a day: 24
• maximum volume per day (litres): 17,280,000
• maximum number of days of taking in a year: 240
• earliest calendar date of taking (mm/dd): January 1
• latest calendar date of taking (mm/dd): December 31
• period of taking: up to 10 years

Source name: recharge system (pond)

• purpose: aggregate extraction
• maximum rate of per minute (litres): 36,000
• maximum number of hours of taking a day: 24
• maximum volume per day (litres): 51,840,000
• maximum number of days of taking in a year: 365
• earliest calendar date of taking (mm/dd): January 1
• latest calendar date of taking (mm/dd): December 31
• period of taking: up to 10 years

There are 3 categories of a Permit to Take Water:

• Category 1: water takings are anticipated to have a lower risk of causing an unacceptable environmental impact/interference
• Category 2: water takings are anticipated to having a higher potential of causing unacceptable environmental impact or interference
• Category 3: water takings are anticipated to have the highest potential of causing unacceptable environmental impactor interference

The proposed water taking qualifies as a Category 3 permit.