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Location: Ministry Home > Highway Management> Environmental Standards Project > Oak Ridges Moraine Component


Environmental Protection Requirements
for Transportation Planning and Highway Design, Construction, Operation and Maintenance

Oak Ridges Moraine Component

Effective: August 2004



15.0  Oak Ridges Moraine - Environmental Protection Requirements

The Ministry of Transportation of Ontario recognized a need to develop a consistent, systematic approach to environmental management by improving how the ministry assesses environmental risk and controls the environmental impacts resulting from its activities. The approach will meet the ministry's commitment to the environment by recognizing both ministry business processes, and the complex interactions between the environment and the numerous activities undertaken for transportation planning and highway design, construction, operation and maintenance. The Environmental Standards Project is the ministry's first step in developing a systematic approach to environmental management.

One of the objectives of Environmental Standards Project was to provide a concise, yet comprehensive interpretation of how federal and provincial environmental legislative requirements, guidelines and policies are applied to transportation planning, and highway design, construction, operation and maintenance activities. To meet this objective, the ministry has developed Environmental Protection Requirements for Transportation Planning and Highway Design, Construction, Operation and Maintenance.

The above document, when posted in April, did not include requirements for the Oak Ridges Moraine Conservation Act and Plan.

The following Environmental Protection Requirements for the Oak Ridges Moraine are based on the Oak Ridges Moraine Conservation Act, S.O. 2001, c. 31, Designation of Oak Ridges Moraine Area, O. Reg. 1/02, and the Oak Ridges Moraine Conservation Plan, O. Reg. 140/02. In addition to the above Environmental Protection Requirements, during planning, design, construction, operation and maintenance of highways located in the Oak Ridges Moraine Conservation Plan Areas as mapped in Map 208 to the Plan Regulation, the Ministry shall comply with the following Environmental Quality Standards:

ORM-1 In Natural Core Areas, maintain and, where possible, improve or restore the ecological integrity of the Plan Area by;
  1. maintaining and, where possible, improving or restoring the health, diversity, size and connectivity of key natural heritage features, hydrologically sensitive features and the related ecological functions;
  2. maintaining or restoring natural self-sustaining vegetation and wildlife habitat;
  3. maintaining the quantity and quality of groundwater and surface water;
  4. maintaining groundwater recharge;
  5. maintaining natural stream form and flow characteristics; and
  6. protecting landform features.
    (O. Reg. 140/02, s. 11 (1)).
ORM-2 In Natural Linkage Areas, maintain and, where possible, improve or restore the ecological integrity of the Plan Area, and to maintain, and where possible, improve or restore, regional-scale open space linkages between Natural Core Areas and along river valleys and stream corridors, by;
  1. maintaining, and where possible improving or restoring, the health, diversity, size, and connectivity of key natural heritage features, hydrologically sensitive features and the related ecological functions;
  2. maintaining, and where possible improving or restoring natural self-sustaining vegetation over large parts of the area to facilitate movement of plants and animals;
  3. maintaining a natural continuous east-west connection and additional connections to river valleys and streams north and south of the Plan Area;
  4. maintaining the quantity and quality of groundwater and surface water,
  5. maintaining groundwater recharge;
  6. maintaining natural stream form and flow characteristics; and
  7. protecting landform features.
    (O. Reg. 140/02, , s. 12 (1)).
ORM-3 In Countryside Areas, encourage agricultural and other rural uses that support the Plan's objectives, by,
  1. protecting prime agricultural areas;
  2. providing for the continuation of agricultural and other rural land uses and normal farm practices; and
  3. maintaining the rural character of the Rural Settlements.
    (O. Reg. 140/02, s. 13 (1)).
ORM-4 The planning, design, construction, operation, and maintenance of all highway projects shall be consistent with Municipal watershed plans as required by O. Reg. 140/02, s. 24 (1).
ORM-5 Any application for a mineral aggregate operation or wayside pit operation shall demonstrate that it will:
  1. maintain and, where possible, improve or restore the quantity and quality of groundwater and surface water in the Plan Area;
  2. rehabilitate as much of the site as possible;
  3. maintain and, where possible, improve or restore the health, diversity, size and connectivity of any key natural heritage features on the site or on adjacent land; and
  4. protect the geological or geomorphological attributes of any areas of natural and scientific interest (earth science) on the site or on adjacent land.
    ( O. Reg. 140/02, s. 35. (1)).
ORM-6 All service and utility trenches for transportation, infrastructure and utilities shall be planned, designed and constructed so as to keep disruption of the natural groundwater flow to a minimum (O. Reg. 140/02, s. 41 (6)).
ORM-7 All stormwater management plans shall have the objective of:
  1. maintaining groundwater quantity and flow and stream baseflow;
  2. protecting water quality;
  3. protecting aquatic species and their habitat;
  4. preventing increases in stream channel erosion; and
  5. preventing any increase in flood risk.
    (O. Reg. 140/02, s. 46 (1) ).
ORM-8 During the planning of highways in Natural Linkage Areas and Natural Core Areas, the need for the project shall be demonstrated. Where the need for the project has been demonstrated it shall also be demonstrated that there is no reasonable alternative (O.Reg 140/02, s. 41(2) (a)).
ORM-9 In Natural Linkage Areas and Natural Core Areas, highway undertakings shall be planned, designed and constructed to keep required right-of-way widths and associated construction disturbance to the minimum possible (O.Reg 140/02, s. 41 (2) (b) 1,2).
ORM-10 In Natural Linkage Areas and Natural Core Areas, Highway undertakings shall be planned and designed to coincide to the extent possible with existing transportation, infrastructure or utility corridors such that the number of corridors is kept to a minimum - (O.Reg 140/02, s. 41 (2) (b) 2)
ORM-11 In Natural Linkage Areas and Natural Core Areas, Highway undertakings shall be planned, designed and constructed to facilitate wildlife movement - (O.Reg 140/02, s. 41 (2) (b) 3).
ORM-12 Where required along the highway, lighting shall be designed to minimize light intrusion into Natural Core Areas - (O.Reg 140/02, s. 41 (2) (b) 4).
ORM-13 Highway planning, design, and construction practices that are adopted shall minimize adverse effects on the ecological integrity of the Plan Area. Where avoidance is not possible, and has been permitted through the EA process1, the highway will be designed, constructed, and operated/maintained to minimize effects on Natural Core Areas and Natural Linkage Areas - (O.Reg 140/02, s. 41 (2) (b) 5).

1When establishing if a transportation facility is permitted through the EA process the following hierarchy applies:

  1. Demonstrate that the facility is needed;
  2. Demonstrate that there is no reasonable alternative to what is being proposed;
  3. Avoid to the extent possible natural heritage features, hydrologically sensitive features and related vegetation protection zones;
  4. Minimize unavoidable effects.
ORM-14 Future highway interchanges or transit stations shall not be located within a Natural Core Area - (O.Reg 140/02, s. 41 (3) (b)).
ORM-15 Highways shall be planned and designed to protect Natural Core Areas by either avoidance, or if avoidance is not possible and has been permitted through the EA process, by locating the project as close to the edge of the Natural Core Area as possible - (O.Reg 140/02, s. 41 (3) (c)).
ORM-16 Highway planning, design, construction, operation and maintenance practices that are adopted shall maintain, and where possible improve or restore, key ecological and recreational linkages, including the ORM recreational trail system that will be established as described in Section 39 of the ORMCP - (O.Reg 140/02, s. 41 (5) (c)).
ORM-17 Highway design shall implement a landscape design that is compatible with adjacent natural areas and site conditions and that utilizes native plant species as much as possible, especially along rights-of-way - (O.Reg 140/02, s. 41 (5) (d)).
ORM-18 Highway long-term landscape management approaches that are adopted shall maintain, and where possible improve or restore the health, diversity, size and connectivity of the key natural heritage feature or hydrologically sensitive feature - (O.Reg 140/02, s. 41 (5) (e)).
ORM-19 Highway surface water conveyance and management works shall be planned and designed, constructed, and operated and maintained to:
  1. Keep any adverse effects on the ecological integrity of the Oak Ridges Moraine Conservation Plan Area to a minimum;
  2. Maintain the ecological integrity of hydrological features, key natural heritage features and related vegetation protection zones;
  3. Maintain the quantity and quality of groundwater and surface water;
  4. Maintain stream baseflows;
  5. Protect aquatic species and their habitat;
  6. Prevent increases in stream channel erosion;
  7. Prevent any increase in flood risk; and
  8. Be consistent with the applicable watershed plan, water budget and conservation plan.
    (O.Reg 140/02, s. 41, s. 43 and s.46).
ORM-20 To the extent that is technically, physically, and economically practical, highway planning, design and construction practices that protect water resources should be used such that:
  1. The removal of vegetation, grading and soil compaction is kept to a minimum;
  2. Soil migration from the construction area is prevented;
  3. Exposed soils are stabilized as soon as is possible;
  4. Chemical applications to suppress dust and control pests are kept to a minimum; and
  5. Areas of impervious land use are minimized, while areas retained in a natural, undisturbed state are maximized.
    (O.Reg 140/02, s. 45 (2)).
ORM-21  To the extent that is technically, physically, and economically practical, highway surface water conveyance and management systems should integrate a variety of measures to form a "treatment train" that provides a total, long-term suspended solids removal efficiency of at least 80 per cent - (O.Reg 140/02, s. 45 (6) , s.46).
ORM-22 The disposal of stormwater into kettle lakes is strictly prohibited - (O.Reg 140/02, s.45(7)).
ORM-23 Stormwater management ponds shall not be located in key natural heritage features and hydrologically sensitive features or related vegetation protection zones - (O.Reg 140/02, s.45(8)).
ORM-24 Rapid infiltration basins and/or columns are strictly prohibited (O.Reg 140/02, s.47).
ORM-25 The following uses are prohibited in wellhead protection areas:
  1. Storage of petroleum fuels, solvents and chlorinated solvents, pesticides, herbicides, fungicides, construction equipment, inorganic fertilizers, road salt and contaminants listed in Schedule 3 (Severely Toxic Contaminants) to Regulation 347 (RRO 1990);
  2. Generation and storage of hazardous waste or liquid industrial waste; and
  3. Snow storage and disposal facilities.
    (O.Reg 140/02, s. 28).
ORM-26 The following uses are prohibited in areas of high aquifer vulnerability as shown on the map entitled Reference Map for Ontario Regulation 140/02:
  1. Generation and storage of hazardous waste or liquid industrial waste;
  2. Snow storage and disposal facilities; and
  3. Underground and above-ground storage tanks that are not equipped with an approved secondary containment device.
    (O.Reg 140/02, s. 29).
ORM-27 Highways that will be used to transport chemicals or volatile materials should be planned and designed to avoid wellhead protection areas and areas of high aquifer vulnerability (O.Reg 140/02, s. 42 (1) (c)).
ORM-28 Highway planning, design, construction, operation and maintenance activities shall provide for groundwater source protection in terms of both quality and quantity and recognize vulnerable or sensitive (highly vulnerable) aquifer zones and wellhead protection zones as defined by the MOE (designated Director) and in Municipal Official Plans. (Ontario Water Resources Act s.33. and ORMCP O. Reg. 140/02, s. 29 and O. Reg. 140/02, s. 42 (1).)




Last Modified: August 24, 2004