Snow Disposal Feasibility Study

3,54

MB

94

stron

6342

ID

MacViro Consultants Inc.

2002

rok

Table of Contents

Transmittal Letter

Executive Summary

Table of Contents

1. Introduction 1-1

1.1 Background . 1-1

1.2 Study Objective 1-2

1.3 Overview of Report. 1-2

2. Description and Evaluation of Current Snow Disposal Sites . 2-1

2.1 Overview 2-1

2.2 Site Descriptions . 2-1

2.2.1 District 1 2-1

2.2.2 District 2 2-4

2.2.3 District 3 2-5

2.2.4 District 4 2-8

2.3 Site Prioritization 2-9

2.4 Site Evaluation Factors . 2-10

2.5 Summary of Site Issues, Mitigation and Costs . 2-11

3. Assessment of Current Snow Disposal Capacity in Relation to Needs 3-1

3.1 City of Toronto Snow Disposal Target . 3-1

3.2 Estimate of Current City of Toronto Snow Disposal Capacity . 3-2

3.3 Current Capacity in Relation to Target . 3-3

3.4 Cost of Current Disposal Capacity 3-4

4. Identification and Evaluation of Other Disposal Approaches 4-1

4.1 Snow Melter Technologies . 4-1

4.1.1 Overview. 4-1

4.1.2 Costs 4-1

4.1.3 Portable Melters . 4-2

4.1.4 Large-Scale Stationary Melter Plants . 4-3

4.2 Additional Sewer Snow Disposal Sites. 4-5

4.3 Use of Western Beaches Tunnel and Shafts 4-5

4.4 Use Biogas to Melt Snow 4-6

4.5 Dumping of Snow into the Sewage Treatment Process 4-7

4.6 Use of Settling Ponds on Leslie Street Spit. 4-7

4.7 Other Approaches 4-7

5. Identification and Evaluation of New Disposal Sites. 5-1

5.1 Site Search Methodology 5-1

5.2 Site Identification Criteria (Land Disposal and Stationary Melter Sites) 5-1

5.3 Site Identification Criteria (Portable Melter Sites) 5-2

5.4 Identified Sites 5-3

6. Experience in Other Jurisdictions. 6-1

6.1 Overview 6-1

6.1.1 Land Disposal 6-1

6.1.2 Sewer Chuting. 6-1

6.2 Ottawa 6-1

6.3 Montreal Area . 6-3

6.4 Winnipeg 6-4

6.5 Chicago 6-5

6.6 New York. 6-5

6.7 Sapporo, Japan 6-5

7. Public Consultation 7-1

8. Strategic Plan for Snow Disposal 8-1

8.1 Overview 8-1

8.2 Strategy for Use of Existing Sites . 8-2

8.3 Comparison of Disposal Alternatives . 8-4

8.4 Recommended Strategy. 8-6

8.4.1 Recognize Snow Disposal as an Important Land Use for the Existing Disposal Sites. 8-6

8.4.2 Obtain Additional Capacity 8-7

8.4.3 Improve Existing Sites . 8-8

8.4.4 Improve Management of Snow Disposal Operations . 8-9

8.4.5 Undertake Environmental Monitoring 8-10

8.4.6 Consideration of the Valley Land Sites 8-11

Appendices (Not available in electronic format)

Appendix A Study Terms of Reference

Appendix B Site Review Checklists

Appendix C Management Plans for Individual Sites

Appendix D Protocol for Testing Soils at Individual Sites

Appendix E Public Consultation Reports

Appendix F Specifications and Data Sheets

Appendix G Ontario Ministry of the Environment Guidelines for Snow Disposal Sites