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 five (5) water taking sources 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.