Ward 4 -Thompson Landfill Site 2016 Site Development Report€¦ · Ward 4 -Thompson Landfill Site 2016 Site Development Report Prepared by: AECOM 523 Wellington Street East 705 942

Municipality of Huron Shores

Ward 4 -Thompson Landfill Site 2016 Site Development Report

Prepared by:

AECOM

523 Wellington Street East 705 942 2612 tel

Sault Ste. Marie, ON, Canada P6A 2M4 705 942 3642 fax

www.aecom.com

March, 2017 Project Number: 60487908


Ward 4 - Thompson Landfill Site

2016 Site Development Report

60487908 2016 Site Development Report - Final.Docx

Distribution List

# Hard Copies PDF Required Association / Company Name

1 Yes MOECC, Sault Ste. Marie Area Office

11 Yes Municipality of Huron Shores

1 Yes AECOM Canada Ltd.

Revision History

Revision # Date Revised By: Revision Description




AECOM: 2015-04-13

© 2009-2015 AECOM Canada Ltd. All Rights Reserved.


Statement of Qualifications and Limitations

The attached Report (the “Report”) has been prepared by AECOM Canada Ltd. (“AECOM”) for the benefit of the Client (“Client”) in

accordance with the agreement between AECOM and Client, including the scope of work detailed therein (the “Agreement”).

The information, data, recommendations and conclusions contained in the Report (collectively, the “Information”):

is subject to the scope, schedule, and other constraints and limitations in the Agreement and the qualifications

contained in the Report (the “Limitations”);

represents AECOM’s professional judgement in light of the Limitations and industry standards for the preparation of

similar reports;

may be based on information provided to AECOM which has not been independently verified;

has not been updated since the date of issuance of the Report and its accuracy is limited to the time period and

circumstances in which it was collected, processed, made or issued;

must be read as a whole and sections thereof should not be read out of such context;

was prepared for the specific purposes described in the Report and the Agreement; and

in the case of subsurface, environmental or geotechnical conditions, may be based on limited testing and on the

assumption that such conditions are uniform and not variable either geographically or over time.

AECOM shall be entitled to rely upon the accuracy and completeness of information that was provided to it and has no

obligation to update such information. AECOM accepts no responsibility for any events or circumstances that may have

occurred since the date on which the Report was prepared and, in the case of subsurface, environmental or geotechnical

conditions, is not responsible for any variability in such conditions, geographically or over time.

AECOM agrees that the Report represents its professional judgement as described above and that the Information has been

prepared for the specific purpose and use described in the Report and the Agreement, but AECOM makes no other

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Information or any part thereof.

Without in any way limiting the generality of the foregoing, any estimates or opinions regarding probable construction costs or

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This Statement of Qualifications and Limitations is attached to and forms part of the Report and any use of the Report is subject

to the terms hereof.





Table of Contents

page

1. Introduction ...................................................................................................................... 1

2. Total Volume of Waste Deposited at the Site ................................................................ 1

3. Remaining Life Expectancy of the Site .......................................................................... 2

4. Operational Problems ...................................................................................................... 2

5. MOECC Site Inspection Reports ..................................................................................... 3

6. Compliance with 2015 Site Development Report Recommendations ......................... 4

7. Conclusions and Recommendations ............................................................................. 4

8. References ........................................................................................................................ 5

Figures

Figure 1. Site Location Map

Figure 2. Site Plan

Appendices

Appendix A. Provisional Certificate of Approval

Appendix B. MOECC Site Inspection Reports – 2000, 2012 and 2015




60487908 2016 Site Development Report - Final.Docx 1

1. Introduction

The Ward 4 Thompson landfill site is located within the northwest quarter of Section 29, Municipality of Huron

Shores, District of Algoma (Figure 1). The site currently operates under Provisional Certificate of Approval A562001

issued June 18, 1996 (Appendix A). The landfill is approved for a 0.81 ha waste footprint within a 12.37 ha site area

and is licensed to accept domestic waste only, with a maximum capacity of 2,200 tonnes. A site plan depicting the

approximate limits of the landfill as well as existing site features and current disposal areas is provided in Figure 2.

The purpose of this report is to provide a summary of the site development activities over the life of the landfill.

More specifically this report addresses Condition 13 of the Provisional Certificate of Approval which states the

proponent is to submit an annual report to the District Manager on or before March 31 of each year. The report will

contain the following information:

a) Total volume of waste deposited in the site.

b) The remaining life expectancy of the site.

c) Any operational problems with the site.

2. Total Volume of Waste Deposited at the Site

The site has been operational since approximately 19701. During this operating period it has served an estimated

average equivalent permanent population in the range of 120 people2. The following approach was used to

estimate the total volume of waste deposited in the site.

Historical (ie. 1991 and 1996) population data for the former Township of Thompson was obtained from the

Statistics Canada website and typical waste disposal rates were used in conjunction with the estimated operating

life of the landfill to calculate the total volume of waste deposited at the site. In addition, a site survey was

completed on May 28, 2013 to delineate the approximate areal extent of the waste within the site. During the

conduct of the survey a Municipal staff member provided direction to the survey crew regarding the historical

location of waste deposition to allow delineation of the approximate location and size of the current disposal

footprint.

The following formula was used to estimate the total waste deposited at the site:

Total Estimated Waste Deposited = Average Annual Serviced Population x Number of Years in Service x Average

Annual per Capita Waste Disposal Rate.

Therefore, the Total Estimated Waste Deposited = 120 * 46 years * 330kg/per/yr* = 1,822 say 1,825 tonnes.

1 MOE 2000 Inspection Report 2 Statistics Canada Website (former Township of Thompson population – 1991 and 1996)





*Note: In order to estimate appropriate waste generation rates for use in projecting future waste quantities to be

managed, we have used data obtained from AECOM’s experience with waste disposal rates at other similar

northern Ontario municipal landfill sites based on actual survey results. Based on the review of the available data it

is anticipated that the disposal rate in the Municipality of Huron Shores is likely in the range of 300 to 500

kg/person/year. The value used was derived based on our experience with waste deposition quantities in similar

small municipalities.

Based on the topographic survey completed in 2013 the area of waste deposition is approximately 0.79 Ha (refer to

Figure 2). The site is currently approved for a 0.81 Ha footprint. It is recommended that a topographical survey be

completed once every 5 years to properly assess remaining site capacity. The next survey should be completed in

2018.

3. Remaining Life Expectancy of the Site

In accordance with the terms and conditions of the site’s Certificate of Approval, the site is approved for use of a

0.81 Ha footprint and can accept a maximum of 2,200 tonnes of waste.

Based on the calculations completed in Section 2 of this report there is approximately 375 tonnes of capacity

remaining at the end of 2016. In addition, at the time of the 2013 survey there was an estimated 0.02 Ha (ie: 200

m2) of area remaining for disposal activities.

The estimated 375 tonnes of reserve capacity is adequate to service 120 people for approximately 9 to 10 years.

4. Operational Problems

Landfilling at the site has historically consisted of trenching and filling. The relatively high water table within the site

limits the trench depth and the ability to generate soils for cover material which contributes to litter sprawl. The litter

sprawl around the landfill is also due, in part, to significant bear activity at the site.

The current active disposal trench (Figure 2) is situated within the existing disposal footprint that was surveyed in

2013. Care is required with future operations to comply with the 0.81 Ha footprint limits.





5. MOECC Site Inspection Reports

Historically, routine MOECC site inspections have been conducted at the Thompson Landfill Site in 1997, 2000 and

2012. Corrective actions were taken by the Municipality to address most of the issues raised by the MOECC. Past

inspection reports along with any letters of response by the Municipality are included in Appendix B.

Most recently, an MOECC site inspection was conducted at the site on June 2, 2015 to assess compliance with

specific operational conditions under Environmental Compliance Approval No. A562001 and the basic operating

standards for landfill sites as contained in O. Reg. 347 and the Environmental Protection Act. The full inspection

report can be found in Appendix B.

The issues raised in the inspection report along with corrective actions taken to address these issues are

summarized below:

1. Cease dumping of waste at eastern (pond) location and relocate dumping to a suitable area within the

approved landfilling boundaries.

For clarity the area which has been described as a “pond” is an earth borrow pit used to source cover material for landfilling operations and surface and ground water has accumulated in the resultant depression. The Municipality confirmed that the waste was removed from the earth borrow pit in 2016 and it has been filled. A second shallow earth borrow pit has been excavated to the north of the original pit which does not interfere with the groundwater table.

2. Compact and cover waste more frequently.

As noted in Section 4 of this report, landfilling at the site has historically consisted of trenching and filling.

The relatively high water table within the site limits the trench depth and the ability to generate soils for

cover material. The Municipality has, however, been more vigilant with waste compaction and the

application of cover material. It should also be noted that litter sprawl is, in part, due to significant bear

activity at the site.

3. Add sign at active household waste trench.

The Municipality has confirmed that a sign has been erected at the active household waste trench to mitigate waste disposal outside of the footprint.

4. Maintain monitoring wells as per Ontario Regulation 903-Wells.

All monitoring wells were properly capped and secured and all well covers locked as per O.Reg. 903 –

“Wells” during the spring 2016 sampling event with the exception of OW-3 located along Dean Lake Road

which has a broken pipe and no steel casing. The Municipality is scheduled to repair this well in the spring

of 2017. Wells will continue to be inspected and maintained each year during the sampling event.

5. Install visible markers identifying the limits of the designated fill area as approved by ECA #A562001.

It was requested that the MOECC review their files to determine if an original C of A application for this site

could be located in order to determine if a landfill disposal footprint had previously been established prior to

establishing the permanent disposal footprint boundaries in the field. The MOECC confirmed in May 2016

that the original application was not located and no disposal footprint could be found on file. The disposal





area was surveyed by AECOM in the spring of 2016 and a practical approach to establishing the

boundaries will now have to be taken. Once a disposal footprint is identified, the Municipality will erect

permanent markers. To the best of our knowledge a plan delineating the disposal boundaries within the

overall landfill property has never been produced.

6. Ensure only clean wood waste is disposed and burnt at the designated wood waste trenches.

The Municipality continues to ensure only clean wood waste is disposed and burnt at the designated wood waste trench.

7. Provide documentation that ECA #A562001 has been registered on title as per condition 8 of the ECA.

The Municipality has complied with this request. Documentation confirming that ECA #A562001 has been registered on title as per condition 8 of the ECA has been forwarded to the MOECC.

6. Compliance with 2015 Site Development Report Recommendations

Several recommendations were outlined in the 2015 Site Development Report prepared by AECOM. Each of the

recommendations have been actioned except for the following:

1. The disposal boundaries should be delineated in the field to ensure compliance with the approved 0.81 Ha

footprint included in the C of A; and

2. Monitoring well OW-3 should be repaired as the pipe is broken off at ground level and there is no well

casing.

Corrective actions are being taken in 2017 to comply with these outstanding recommendations and will be reported

in the 2017 Site Development Report.

7. Conclusions and Recommendations

The following conclusions and recommendations are provided:

The calculations included in this report are sensitive to the assumptions made.

Consideration should be given to quantifying the number of people using the site and the wastes being

disposed of annually within the site to confirm the reliability of the estimates made.

The disposal boundaries should be delineated in the field to ensure compliance with the approved 0.81 Ha

footprint included in the C of A. Additional waste can be disposed using the area fill method once the full





footprint area has been developed below grade. Cover material may have to be sourced offsite to

accommodate disposal using area fill.

Topographical surveys should be undertaken at 5 year intervals to confirm remaining site capacity. The

next survey should be completed in 2018.

Litter sprawl should be addressed periodically at this site.

Monitoring well OW-3 should be repaired as the pipe is broken off at ground level and there is no well

casing.

All monitoring wells should continue to be properly secured and well covers locked as per Ontario

Regulation 903 – “Wells”.

Corrective actions should be taken to address any outstanding issues noted in the June 2015 MOECC Site

Inspection Report.

This report should be submitted to the MOECC for review.

8. References

Henderson, Paddon Environmental Inc., 1992:

Township of Thompson Landfill Site – Hydrogeologic Assessment, for the Township of Thompson, Project

No. 791801, December, 1992.

Henderson, Paddon Environmental Inc., 1992:

Township of Thompson Landfill Site – Development and Operations Report, Project No. 791801, July,

1992.

Ontario Ministry of the Environment:

Solid Non-Hazardous Waste Disposal Site Inspection Report December 2000.

Statistics Canada Website (1991 and 1996 population).

60321977 February 2015

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Project No. 60487908

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Date: March, 2017

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Municipality of Huron Shores Ward 4 - Thompson Landfill Site Site Development Report

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Ward 4 -Thompson Landfill Site 2016 Site Development Report€¦ · Ward 4 -Thompson Landfill Site 2016 Site Development Report Prepared by: AECOM 523 Wellington Street East 705 942