Order made under the Environmental assessment act

Declaration – Regional Municipality of York’s Modifications to the York Durham Sewage System (forcemains and pumping station)

Having received a request from the Regional Municipality of York (York Region) that the Ministry of the Environment and Climate Change (ministry) take steps to allow an undertaking, namely:

The construction, operation, and maintenance of a new forcemain to convey wastewater from the existing Newmarket Pumping Station to the existing gravity sewer that discharges to the Aurora Pumping Station (Newmarket forcemain); a new forcemain to convey wastewater from the existing Bogart Creek Pumping Station to the new Newmarket forcemain; and modifications to the Newmarket and Bogart Creek Pumping Stations for connection of the new forcemains (together the forcemain undertaking)

to be separated from the other two undertakings in the Upper York Sewage Solutions Environmental Assessment and proceed forward to approval; and

Having been advised by York Region that if the forcemain undertaking is subject to the application of the Environmental Assessment Act (Act), the following injury, damage or interference with the persons and property indicated will occur:

  1. The York Durham Sewage System in Newmarket is approaching its design capacity and must be upgraded to ensure system reliability during high flow conditions.  Overflow or surcharge situations could arise during high flow conditions in Newmarket.  The undertaking would provide relief to the York Durham Sewage System during periods of extreme high flow.
  2. The York Durham Sewage System is aging, having been in constant operation for over 30 years, and requires critical maintenance and repairs.  Investigations have shown trapped gas pockets in the forcemain which can cause corrosion and breakdown of the forcemain, which could lead to damage to the natural environment from a spill of sewage and interference with the provision of sewage services to residents and other users.  
  3. Without redundancy in the system and the ability to redirect flows within the system, repairs and replacements in the infrastructure are difficult as the system has to remain in service at all times. The forcemain undertaking would allow York Region to undertake crucial maintenance and repairs to the existing forcemains and continue to provide sewage services.
  4. York Region would be damaged by the additional cost and time delay if required to conduct further environmental assessment work when it has already carried out an environmental assessment process that assessed alternatives and identified the proposed forcemain undertaking as the preferred alternative to address safety and capacity issues with respect to the existing York Durham Sewage System.

Having weighed such injury, damage, or interference against the betterment of the people of the whole or any part of Ontario by the protection, conservation and wise management in Ontario of the environment which would result from the undertaking being subject to the application of the Act;

The undersigned, appointed by the Premier of Ontario pursuant to section 16 of the Member’s Integrity Act, 1994 to decide on all matters pertaining to the Upper York Sewage Solutions Environmental Assessment, is of the opinion that it is in the public interest to declare and does declare pursuant to section 3.2 of the Act that the undertaking is not subject to section 5 of the Act for the following reasons:

  1. Possible environmental harm from the release of untreated sewage during high flow volume periods due to capacity limitations will be avoided by the addition of necessary capacity in the York Durham Sewage System;
  2. Critical maintenance and repairs can be completed to the York Durham Sewage System in the Newmarket area before an emergency situation arises preventing environmental harm, loss of sewage services and property damage;
  3. York Region has carried out an appropriate level of environmental assessment planning, including broad consultation with the public, government agencies and Indigenous communities, to address safety and capacity issues with respect to the forcemain undertaking;
  4. Questions raised by the public, Indigenous communities or government agencies with respect to the forcemain undertaking during the consultation process for the Upper York Sewage Solutions Environmental Assessment (through which the forecemain undertaking was also consulted on) were appropriately addressed by York Region;
  5. The forcemain undertaking is located in a generally urban area in the Region of York and appropriate construction techniques and mitigation measures will be used to ensure that the environment is protected during the construction and operation of the forcemain undertaking;
  6. The conditions set out below will ensure that the undertaking is implemented in an appropriate manner, in the same manner that York Region consulted the public on, and that the environment will be protected during the construction, operation and maintenance of the forcemain undertaking; and,
  7. Other subsequent permits and approvals must be obtained before construction of the undertaking can commence and will contribute to the protection of the environment.

This declaration order (order) is subject to the following terms and conditions:

Dated the 26 day of February 2018 at Toronto

[Original signed by]
Minister Des Rosiers
Minister of Natural Resources and Forestry

Approved by O.C. No._____/____

Date O.C. Approved: _________

Environmental Assessment and Permissions Branch Contact
Dorothy Moszynski
Telephone No.:416-314-3352

EA File No.: 04-03


Order in Council 399/2018