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Hydrogeology

Groundwater management and permitting

The quantity of groundwater pumping determines the permitting requirements of government.  In Ontario, taking of greater than 50,000 L of groundwater or groundwater and stormwater require permits.  Permanent water takings of greater than 50,000 L per day or construction dewatering of greater than 400,000 L per day require a permit to take water (PTTW). 

Construction dewatering of 50,000 – 400,000 L per day require registration of the environmental activities and sector registry (EASR).  Terrapex prepares the accompanying reports required for PTTWs and EASRs, and carries out the application process on behalf of our clients. 

Most municipalities require discharge permits or agreements to discharge to their sewage works, regardless of the water volume.  Terrapex can assist with the sewer permitting process, or undertake the permitting on behalf of our clients.

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TORONTO OFFICE
90 Scarsdale Road
Toronto, Ontario
M3B 2R7 , Canada

Tel: (416) 245-0011
Fax: (416) 245-0012

toronto@terrapex.com
geotechnical@terrapex.com

HAMILTON OFFICE
65 Nebo Road
Hamilton, Ontario
L8W 2C9, Canada

Tel: (905) 632-5939
Fax: (905) 632-6793

hamilton@terrapex.com
geotechnical@terrapex.com

OTTAWA OFFICE
20 Gurdwara Road, Unit 1
Ottawa, Ontario
K2E 8E3, Canada

Tel: (613) 745-6471
Fax: (613) 745-0796

ottawa@terrapex.com
geotechnical@terrapex.com

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