CITY OF HAMILTON · CITY OF HAMILTON ... and to adopt the Toxicity Characteristic Leaching Procedure ... the drill cuttings were often liquefied by the time they were brought to

CITY OF HAMILTON

Red Hill Valley ProjectWaste Classification and Segregation PlanFormer Rennie Street Landfill Site

Prepared by

Dillon ConsultingLimited

02-0444-4010Revision No. 0

August, 2004

Red Hill Valley ProjectRennie St. Landfill Excavation

WASTE CLASSIFICATION AND SEGREGATION PLAN

Last Revision: August 2004 Revision No: 0Page i of i

1.0 OBJECTIVE ....................................................................................................... 1

2.0 PROCEDURES................................................................................................... 12.1 Approach ................................................................................................. 12.2 Waste Tracking Documentation ............................................................... 22.3 Waste Excavation .................................................................................... 4

2.3.1 Existing Landfill Cover ............................................................. 42.3.2 Fill Material .............................................................................. 42.3.3 Refuse Material ......................................................................... 4

2.4 Covering Exposed Waste ......................................................................... 72.5 Segregation and Stockpiling..................................................................... 7

2.5.1 Common Procedures for Waste Segregation .............................. 82.5.2 Common Procedures for Stockpiling ......................................... 82.5.3 Special Wastes ........................................................................ 10

2.6 Slump Requirements.............................................................................. 102.7 Sampling, Analysis and Classification ................................................... 10

2.7.1 Data Quality Objectives........................................................... 102.7.2 Field Sample Collection Procedures ........................................ 11

2.7.2.1 Representative Sample Design and Frequency ....... 112.7.2.2 Sample Collection Patterns..................................... 132.7.2.3 Sample Descriptions and Locations........................ 142.7.3.4 Headspace Screening for Total Organic Vapours.... 152.7.3.5 Sample Containers, Labeling, Handling and

Custody.................................................................. 152.7.3.6 Equipment Cleaning.............................................. 15

2.7.4 Laboratory Analysis ................................................................ 152.7.5 Data Compilation and Validation............................................. 152.7.6 Waste Classification ................................................................ 16

2.7.6.1 Wastes from Sampling Activities ........................... 16

3.0 REFERENCES.................................................................................................. 17

ATTACHMENTS

Attachment A - Specific Parameter Lists for Laboratory Testing



Last Revision: August 2004 Revision No: 0Page 1 of 17

1.0 OBJECTIVE

Approximately 70,000 m3 of waste will be excavated from the Rennie St. Landfill site in the City of Hamilton. This is an old dumpsite that was filled in the 1950s and, as such, records of the types of waste dumped at the site are not available. The results of borehole testing indicate that most of the waste is classified as non-hazardous, but some has been classified as PCB hazardous waste. The objective of this plan is to classify the excavated material in accordance with applicable legislation.

2.0 PROCEDURES

2.1 Approach

The approach for the waste management program will involve extensive in-situ testing to determine the waste classification prior to excavation in order to maximize the quantity of material that can be loaded directly onto trucks for permanent off-site disposal. A three-dimensional grid will be established for the excavation area to provide a means to track the various types of information associated with each “grid cell” of waste.

Characterization of the material to be excavated has been undertaken as part of the site contamination investigations related to the Red Hill Valley Project. This information is documented in the following reports:

Rennie Street Landfill Environmental Investigation, Dillon Consulting Limited, March 2000;

Rennie Street Landfill Remedial Works, Dillon Consulting Limited, August 2000; and

Red Hill Creek Expressway, Contaminated Sites Impact Assessment, Dillon Consulting Limited, April 2003.

Based on this characterization, the waste anticipated to be encountered may be subdivided into five major types:

Granular Fill and Soil – includes clean fill, road sweepings, crushed concrete and recycled asphalt;




Refuse – decades-old domestic garbage, anticipated to be odiferous, and that may not pass slump requirement without dewatering;

Special Waste – drums and other containers, tars, resins, sludges, oil and possibly asbestos;

Other Solids– hydraulic lines and large pieces of concrete, wood, metal, etc.; and

Leachate – liquids removed from wastes located below the water table by excavation dewatering that may odiferous; includes precipitation that falls within the excavation area.

To evaluate the environmental quality of the solid and liquid materials encountered during the excavation works, the following four sets of environmental data quality standards and guidelines will be used:

“MOE Table B” – Ontario Ministry of the Environment (MOE) Table B generic guideline values developed for coarse-textured soils in a residential/parkland land use and non-potable groundwater setting, as presented in the document entitled, “Guideline for Use at Contaminated Sites in Ontario” (MOE, 1997, as amended);

“O.Reg. 362” – Ontario Regulation 362, Waste Management – PCBs (1990); “O.Reg. 347” – General Waste Management; “O.Reg. 558” – Amendment to expand the list of parameters having leachate criteria

and to adopt the Toxicity Characteristic Leaching Procedure (TCLP); and “Sewer Use Bylaw” – City of Hamilton Sewer Use By-law (R89-049).

2.2 Waste Tracking Documentation

Wastes will be continuously tracked from the time of generation and characterization through to ultimate final disposal off-site. Documentation will be prepared tracking waste through the following steps for solid waste and liquid waste management:

Solid Waste

Sampling; Laboratory analysis and QA/QC review;




Waste classification assignment; Excavation; Temporary stockpiling (if required); Dewatering (if required); Loading; Off-site transport; and Permanent disposal.

Liquid Waste

Pumping; Containerizing; Sampling; Laboratory analysis and QA/QC review; Waste classification assignment; Pre-treatment (if required); Loading, off-site transport and permanent disposal; and/or City approval and discharge to sanitary sewer.

It is noted that in the above lists not all steps will be required for all wastes, and the possibility for further waste segregation and/or re-testing is not shown (for simplicity). Additionally, for solid waste, the order of the steps may vary depending on the specific nature of the waste and whether in-situ or ex-situ sampling is conducted.

Project documentation will consist of internal records and external records. Internal records will include field notes, data validation summaries, and project correspondence between office and field staff. A series of project-specific forms will be developed and used to facilitate project documentation and data management. External records will generally include laboratory certificates of analyses, waste shipping manifests, copies of contractor insurance, letters of acceptance from the contractor, copies of Certificates of Approval (e.g., for waste receivers), and certificates of final disposal from the waste receiver.




2.3 Waste Excavation

The expected characteristics and removal process for the solid waste types comprising the majority of the volume to be removed are presented in this section in the general order that they will be encountered during excavation.

2.3.1 Existing Landfill Cover

The surface of the landfill consists of approximately 0.6 m of soil/aggregate and recycled asphalt overlying a geosynthetic clay liner (GCL). The approximate volume of material is estimated to be 6,000 m3; the volume of recycled asphalt is not known. The material is expected to be suitable for re-use by the City and will be stripped using conventional construction techniques, and then stockpiled off-site on nearby City-owned lands.

The 0.1 m sand layer placed under the GCL liner will be removed with the underlying fill materials.

2.3.2 Fill Material

The fill material located below the landfill cover materials will be composed mostly of aggregate and soil-like material (e.g., crushed concrete, asphalt, road sweepings). The thickness of the fill is expected to vary between 0 and 4 m. Assuming a thickness of 2 m, the approximate volume of fill is estimated to be 20,000 m3. The fill is expected to be classified as solid, non-hazardous waste and is located well above the leachate mound (i.e., it is expected to be “dry”). Odour and other potential impacts associated with refuse are not expected during the excavation of the fill material.

The fill quality will be confirmed by in-situ testing before excavation. The excavation of the fill will proceed in 2-m lifts, corresponding to the area and depth of the sampling grid used for the in-situ testing. The lift thickness may be varied from 2 m to full-depth if deemed more appropriate during in-situ testing.

2.3.3 Refuse Material

Refuse will be the most challenging material to be excavated for several reasons, as listed below.

Thickest waste type to remove;




Water table / leachate mound is located in the refuse, requiring removal of “wet” waste and dewatering techniques;

Refuse will be soft in areas making it more difficult to position equipment; Odour and other similar potential impacts will be highest for this waste type; Portions of the refuse are classified as PCB waste; Portions of the refuse may not pass slump test; and High degree of waste heterogeneity will require more intensive testing and sorting.

The refuse will be composed mostly of decaying domestic garbage. The thickness of the refuse is expected to vary between 6.4 and 10.9 m, becoming thinner from west to east (may only be a couple metres thick near the toe of the landfill). The approximate volume of refuse to be excavated is estimated to be on the order of ¾ or more of the 70,000 m3 of waste to be removed. Of this amount, approximately 1,200 m3 is estimated to be classified as PCB waste and the remainder is expected to be classified as non-hazardous waste. It should be noted that other areas may be identified based on the in-situ testing to be undertaken prior to waste excavation.

The upper 3 to 5 m of refuse is expected to be dry, while refuse below elevation 78 m.a.s.l. is expected to be wet. The volume of refuse, if any, that will not meet slump requirements before off-site transport is unknown (e.g., while boreholes remained open upon drilling, the drill cuttings were often liquefied by the time they were brought to ground surface by the auger flights).

The refuse will be removed following a process similar to that described for the fill material. Refuse quality will be assessed by in-situ testing before excavation. Refuse excavation will proceed in 2-m lifts, corresponding to the area and depth of the sampling grid used for the in-situ testing. To address the greater heterogeneity of the refuse materials than the fill materials, the size of the grid elements will be much smaller for the refuse and/or a higher frequency of sampling will be conducted for grid cells containing refuse than for those containing fill.

The excavation face of the refuse will be terraced as waste removal proceeds. For the smallest grid element size of 4m x 4m by 2m thick and a waste thickness of 10m, a 5-tier terrace will develop (assumes 2:1 slope is determined to be safe). The excavation face will advance from west to east. It is anticipated that excavation will proceed with equipment located at the top of the slope, as well as mid-slope and perhaps at the bottom of the slope. The Contractor will be responsible for developing the specific details of the




excavation methods (i.e., type of equipment, configuration of excavation face, layout for access roads, etc.).

Once tested in-situ and the waste classification determined, the intent is to excavate and transport the refuse off-site directly (i.e., “load-and-go”). In concept, a series of some 30 to 50 adjacent grid elements in a row(s) would be excavated and transported off-site each day. The in-situ testing would remain far enough ahead of the load-and-go activities such that the testing results would be received and reviewed to permit waste classification to be assigned and load-and-go to continue without work slowdowns or stoppages. In practice, some grid elements will require further sorting/testing and others may require further dewatering to meet slump requirements. It may be more expedient to remove these grid elements and handle them ex-situ than to slow the advancement of the excavation face.

Further sorting/segregation will occur under three scenarios:

Continuously to separate different waste types (e.g., mattresses, large concrete pieces, timbers and drums). Different waste types will be stored, tested and waste classified separately.

As needed, if significantly different materials are encountered, such as strong visual or olfactory contrasts suggesting the presence of concentrated contamination. The affected materials will be excavated and stockpiled separately for further evaluation, testing, and classification;

As needed, if the sample results for a grid element are near the comparative criteria and further testing is to be completed to further assess waste classification. The refuse for that grid element may be excavated and stockpiled. The stockpile will be subdivided into smaller stockpiles and then each of the smaller piles tested and classified separately.

For refuse not meeting slump requirements, liquid will be removed either in-situ or ex-situ following the methods outlined in the Waste Stabilization Plan.

All excavated refuse will be disposed off-site at appropriately licensed landfills.




2.4 Covering Exposed Waste

Refuse is the only waste type identified that will require covering within the excavation to mitigate potential impacts (e.g., odour). All exposed refuse that is not being actively excavated will be covered. Temporary covers may include:

Re-use of the GCL; Placement of 0.15 m of granular fill or other inert and distinguishable material, such

as wood chips; or Application of a foam odour-masking agent.

The GCL liner has not contacted refuse to date and will be handled and stored as a non-hazardous material. It will also be handled and stored on-site in a manner to reduce potential damage from site equipment and cold temperatures. GCL used as a temporary cover on PCB wastes will not be re-used to cover non-hazardous wastes if there is a concern for cross-contamination.

Temporary cover materials will be tested and disposed accordingly once no longer required.

2.5 Segregation and Stockpiling

Segregation of solid wastes will be performed to improve the confidence in waste classification while also reducing the number of samples that are required to be collected and analyzed. Improved confidence reduces the possibility that non-hazardous waste may be disposed at the substantially higher hazardous disposal rates, and conversely also reduces the possibility that hazardous waste may be disposed as non-hazardous waste, potentially increasing the risk of adverse affect to human-health and the environment. Waste segregation will occur in-situ as wastes are excavated to produce stockpiles at ground surface, and will also occur ex-situ as stockpiles are further subdivided into smaller piles. Segregation and stockpiling have the disadvantages of increased handling, time, and space requirements; however, the associated costs are expected to be significantly lower than the alternatives. Most waste receivers also require waste to have been segregated, and in some cases, will only accept certain waste types.

The proportions of the different waste types in the landfill requiring segregation are not known. The need to allow some flexibility to adapt to actual site conditions, as they become known, is recognized and considered acceptable.




The segregation and stockpiling procedures to be followed in order to facilitate the efficient classification and disposal of waste are presented in the remainder of this section.

2.5.1 Common Procedures for Waste Segregation

Waste segregation will be ongoing and continually refined from the time of in-situ testing through to when wastes are loaded for off-site transport. Wastes will be segregated by their different levels of contamination using one of more of the following qualitative or quantitative criteria:

Previous information – past environmental testing and landfill cover configuration provide an initial understanding of waste classification by location;

Physical characteristics – size and material composition; Visual or olfactory observations – staining and strong odours; Proximity – waste classification from adjacent grid cells or segregated wastes from

the same grid element will be suggestive of the potential waste classification for the waste in question; and

Testing results – waste classification for the waste material in question.

The information documented as wastes are segregated will include the source location; type, size and quantity of materials segregated; and temporary destination stockpile(s).

As wastes are segregated, other adhering waste types will be removed to the extent practical. For example, soil adhering to a large concrete block will be scraped before the concrete is placed in a stockpile. The scraped soil will either be added back to the originating grid cell or stored with other scraped soils to be tested and handled separately.

2.5.2 Common Procedures for Stockpiling

Stockpiled material will be generally placed on plastic sheeting, covered with plastic sheeting, and surrounded with a siltation curtain. Each stockpile will be appropriately labeled and the location, volume, and nature of the material recorded. Lands used for stockpiling will be fenced, locked, and have the appropriate warning signage.

The intent is to stockpile off-site only that non-odiferous material classified as solid, non-hazardous waste. Potential stockpile areas for these materials include the former scrapyards on Nash Road (City-owned land). It is preferred that hazardous or potentially




hazardous wastes (i.e., expected to consist mainly of PCB wastes) be stockpiled temporarily within the excavation area, as space permits. Secondary alternative storage locations include the portion of the landfill not planned for excavation to the north, the registered PCB storage facilities on the adjoining former Public Works Yard, and a secure area on nearby City-owned lands.

Where environmental testing is still in progress for a stockpile, it will be formed by adding wastes laterally to expand the stockpile, rather than vertically. This approach will serve to reduce waste mixing and facilitate subsequent sampling activities and any further stockpile subdivision and testing, if required.

Stockpiles will be assigned a maximum permissible size. The following maximum sizes are suggested:

Materials that may be re-used – no size limitation; Potentially hazardous granular materials – approximately 30 to 40 tonnes (volume

equivalent to one trailer load); and Other solid wastes – dependent on waste type.

Sufficient space will be left around each stockpile to permit easy access for stockpile inspection and sampling. As available space allows, it is also preferable to leave sufficient space for equipment to load any of the stockpiles for off-site transport.

Lands used for stockpiling that are located outside the excavation area will be tested at the completion of the project to assess potential contamination of the land by stockpiling. The appropriate corrective measures will then be undertaken to restore these lands.

Documentation for each stockpile will include (includes materials placed in covered containers, such as roll-off bins):

Stockpile identification reference; Date of first generation of stockpile; Source(s) of stockpile contents (e.g., identification of source grid cells); Approximate stockpile dimensions; Stockpile location (i.e., sketch map of location); Corresponding samples collected to classify stockpile; Any information regarding stockpile subdivision and further testing;




Stockpile classification; and Stockpile transport and disposal information.

2.5.3 Special Wastes

The Contractor will be required to implement the Special Waste Management Plan for materials such as drums and other containers of unknown material (e.g. tar, sludges, resins, oils, and asbestos-containing materials). This plan identifies safe working procedures and a detailed process for handling, storing, testing, and disposal. It is anticipated that these drums/containers, at a minimum, will be placed in overpack containers and stored in a designated area as part of the plan.

MOE’s PCB Sampling Protocol (MOE, 2000) identifies segregation and sampling of electrical cables unless it can be consistently demonstrated that they are not PCB waste. Segregation will be conducted initially and the results assessed as the project proceeds.

2.6 Slump Requirements

Some refuse will be wet and a portion of the refuse may not pass the slump requirement for off-site transport, as defined under Ontario Regulation 347. To meet the slump requirement, additional leachate will need to be removed from the refuse.

The Contractor will be required to implement the Waste Stabilization Plan provided as part of the contract documents. The Contractor will be required to ensure that all materials leaving the site meet the slump requirements and that impacts associated with increasing the slump are mitigated.

2.7 Sampling, Analysis and Classification

2.7.1 Data Quality Objectives

Data Quality Objectives (DQOs) are quantitative and qualitative statements established during strategic planning of the data collection activities that, when met, serve to confirm that the data produced are appropriate in type, quality and quantity to support defensible decision-making. DQOs are usually expressed as simple technical statements of data quality criteria and performance specifications that are easy to understand, measure, or otherwise confirm to have been achieved.




The overall DQO for the project is to measure the average concentration of the excavated materials to permit comparison to regulatory criteria for the purpose of determining the appropriate waste classification or whether the materials are suitable for reuse. The supporting DQOs and procedures to fulfill the DQOs are presented throughout the remainder of this section.

2.7.2 Field Sample Collection Procedures

The field sample collection procedures were developed in consideration of the MOE guidance document entitled “Principles of Sampling and Analysis for TCLP under Ontario Regulation 347” (MOE, 2002). As a starting point for selecting an appropriate number of samples to collect, the following MOE guidance was considered (MOE, 2002):

1 composite sample per 1 m3 for volumes up to 3 m3; 12 grab samples for volumes greater than 3 m3; use equation below (with caution) for volumes greater than 5,000 m3:

N = 31 + (X m3 – 5,000 m3) /300

Where N is the number of samples; andX is the estimated waste volume to characterize.

The equation presented above suggests a sampling frequency of 1 sample per 160 m3 for the first 5,000 m3 with one additional sample per 300 m3 thereafter.

2.7.2.1 Representative Sample Design and Frequency

To improve the representativeness of each sample result, the following will be conducted:

Wastes will be segregated to permit the testing of like materials within any one sample;

Samples of granular fill and refuse will be comprised of sand-size or smaller particles by selectively removing larger particle sizes (a conservative measure);

Samples will be composite samples wherever permissible; and The sample result will be assumed to apply to an assigned volume, with that volume

made smaller as the potential for more significant contamination increases.




The representative sample volumes will correspond to standard truckload sizes of approximately 20 m3. One truckload of excavated material will weigh 30 or 40 tonnes assuming unit densities of 1.5 or 2 tonnes/m3 for wet refuse and granular material, respectively. Dry refuse may weigh as little as 0.5 to 0.75 tonnes/m3.

The frequency of sampling performed will be as follows:

Sampling Frequency by TruckloadParameter* Granular material

under GCLRefuse

Headspace Screening (see Section 2.7.3.4) 1 1

Total Polychlorinated Biphenyls (PCBs) 5 1O.Reg. 558 TCLP – PCBs** 5 2O.Reg. 558 TCLP – Inorganics 5 5O.Reg. 558 TCLP – VOCs 10 5O.Reg. 558 TCLP – OC Pesticides 20 10O.Reg. 558 TCLP – Phen. Acid Herb. 20 10O.Reg. 558 TCLP – SVOCs 10 5

* For specific parameter lists, see Attachment A.** Results will be correlated with total PCBs results initially, followed by a reduction in

sampling frequency if the analyses are not required to assign waste classification.

In the above table, a sampling frequency of “X” indicates that one sample will be analyzed for every “X” truckloads of waste excavated.

The frequency of sampling and the parameter list may be enhanced based on the requirements of the receiving waste disposal sites. More intensive sampling in areas of suspected PCB waste may be conducted. Such areas may include locations where elevated PCBs have been identified in leachate or where there is visible oil or discolouration (leachate or waste) and in consideration of laboratory results available at the time.

Elevated headspace readings may also suggest the need for the increased frequency of sampling and analysis for VOCs. Initially, “elevated” will be defined as greater than 2,000 ppm and a rapid equipment response of a few seconds. However, as headspace readings are influenced by numerous variables, this initial criterion may be modified, based on professional judgement as the project proceeds.




Non-granular solid wastes will be analyzed only for total PCBs at the frequency presented in Section 2.7.2.2 unless there are visual or olfactory indications that these materials should be tested for other parameters.

QC sampling will be conducted at the frequency shown below:

One blind field duplicate sample for every 10 samples for select parameters; One inter-laboratory split sample for every 30 samples for select parameters; and One equipment blank for every 30 to 50 samples (one per day).

2.7.2.2 Sample Collection Patterns

Several different sampling patterns will be used to collect samples depending on the type of waste, its location, and the anticipated chemical results. In-situ and stockpiling sampling will be the most common sampling patterns used followed by specialized patterns for sampling concrete, wood and other materials for PCBs per the MOE protocol (MOE, 2000).

In-situ Sampling

Samples will be collected from test pits that are excavated in the waste following a three-dimensional grid pattern. Test pits will be excavated and sampled with the intent to stay ahead of the main landfill excavation in order to continually provide direction to the Contractor on waste classification. Using the sampling frequency table (Section 2.7.2.1) and excavation in 2m lifts, the smallest grid size will be 4m x 4m by 2m deep (32 m3 or approximately 1.5 truckloads, not accounting for segregation).

For each grid cell sampled, the excavator will remove the portion of waste in the middle of the grid cell to 2 m depth and set it to the side for examination and sample collection. One composite sample will be collected along the vertical profile of the waste that was excavated. The excavator will then return the waste to the excavated hole in the reverse order in which it was removed.

Stockpile Sampling (Granular Materials)

Samples of granular materials in stockpiles will be composite samples. The number of samples collected will correspond to the sampling frequency table presented in Section




2.7.2.1. Stockpiles having PCB concentrations greater than 50 mg/kg may be subdivided into quarters and each quarter re-tested for total PCBs.

Stockpile Sampling (Non-granular Materials)

Non-granular materials may not need to be tested for total PCBs if there is sufficient other information to indicate the materials do not contain elevated concentrations of PCBs.

Materials will be tested following the MOE (2000) protocol for PCB sampling:

The procedure for testing large individual pieces of rock, concrete or asphalt or small stockpiles comprising a volume up to 1 m3 will be to collect chip samples no deeper than 25 mm from the surface of up to five randomly selected pieces. Sufficient chips will be collected to meet the sample analysis requirements.

The procedure for wood is similar to that described above with the exceptions that sub-samples will be collected from up to three pieces of wood for the purpose of producing the composite sample.

Large pieces of pervious furniture (e.g., mattresses) will be tested separately by collecting 5 sub-samples of the surface material (cloth and stuffing) to form one composite sample.

Non-pervious materials (e.g., steel appliances and empty steel drums) will be tested by collecting one wipe sample per material (refer to Appendix B, MOE, 2000).

Electrical cables will be tested as per the procedures described in MOE (2000). Hydraulic lines will be tested following a procedure similar to that for electrical

cables by cutting 5 to 10 short pieces along the length of a cable to form a composite sample for analysis.

2.7.2.3 Sample Descriptions and Locations

For each sample collected, relevant sampling information will be documented in the field notes, including the visual-manual description and identification of the soil sample.

The sample locations will be determined using one of two approaches. For stockpiles, containers (e.g., roll-off bins) and drums, documentation of the corresponding reference identifier and description of the sample pattern will be sufficient (e.g., “composite sample




of the top, middle and bottom of Drum ABC123”). For in-situ sampling of individual grid cells, the coordinates of the corners will be measured.

2.7.3.4 Headspace Screening for Total Organic Vapours

Headspace screening for total organic vapours in the field will be conducted to assess whether samples for TCLP - VOCs should be submitted for laboratory analysis.

2.7.3.5 Sample Containers, Labeling, Handling and Custody

Sample containers will be certified clean by the laboratory. Sample labels will contain the following information: project name, project number, sample identification code, sampling time, sampling date, requested laboratory analyses, and sample preservative.

Samples will be handled in a manner intended to minimize the potential for cross-contamination, damage, or tampering to sample containers. A chain-of-custody form will be used to track the possession and handling of samples from collection to transport, analysis and disposal.

2.7.3.6 Equipment Cleaning

The Contractor will be required to implement the Decontamination Plan provided as part of the contract documents. Non-disposable, field sampling equipment contacting waste will be cleaned before and after each use following common equipment cleaning procedures (e.g., MOE, December 1996). The method of cleaning will typically vary by the size of the piece of equipment being cleaned.

2.7.4 Laboratory Analysis

The analytical laboratories selected to complete this work will be accredited by the Standards Council of Canada / Canadian Association of Environmental Analytical Laboratories (SCC/CAEAL) for the specific analytical methods used. Only data contained in signed laboratory reports will be accepted for use in decision-making.

2.7.5 Data Compilation and Validation

The general approach to the QA/QC review will follow the guidance provided by the Massachusetts Department of Environmental Protection (MADEP, 2003).




A significant amount of documentation will be generated from the time of waste generation to ultimate final disposal off-site. The electronic data and paper documents will be linked through a project database that will be created to store and manage the information generated. Information stored for each grid cell excavated will include: grid cell identifier, grid cell coordinates, general waste description, sample(s) collected, laboratory reference number, waste classification, grid cell excavation/disposal date, and manifest serial number (or bill of lading serial number).

A second database will be created for managing the leachate information similar to that described above and the leachate database that was developed for the existing landfill leachate collector operating at the site.

2.7.6 Waste Classification

The following sources of criteria and guidelines will be used for classifying wastes and other materials:

O.Reg. 347 – general waste management classifications; O.Reg. 362 – materials having total PCBs concentrations >50 mg/kg (solid) or >50

mg/L (liquid) are classified as PCB waste; O.Reg. 558 – materials having leachate concentrations less than or greater than the

Schedule 4 criteria are classified as non-hazardous or hazardous, respectively; Sewer Use Bylaw – leachate having concentrations above the Sewer Use Bylaw

criteria may not be discharged to sanitary sewer, unless the City allows discharge of an over-strength solution; and

MOE PCB Protocol (2000) – materials having wipe test results less than 10 g/cm2

will be considered as non-PCB waste and non-hazardous.

2.7.6.1 Wastes from Sampling Activities

Four types of wastes will be generated during sampling activities. Empty boxes, plastics, paper, paper towels, disposable gloves and other trash will be collected in the general trash containers provided by the Contractor and disposed off-site. Heavily stained wastes will be placed in a drum, labelled as “Contaminated Sampling Wastes”, which will be tested once full or at the end of the project and disposed appropriately. Equipment cleaning fluids will be similarly containerized, tested and disposed appropriately. Excess solid wastes left over from sampling activities will be returned to the point of sampling.




3.0 REFERENCES

Dillon Consulting Limited, 2000a. Rennie Street Landfill Environmental Investigation, March 2000.

Dillon Consulting Limited, 2000b. Rennie Street Landfill Remedial Works, August 2000.

Dillon Consulting Limited, 2003. Red Hill Creek Expressway, Contaminated Sites Impact Assessment.

Massachusetts Department of Environmental Protection, 2003. Quality Assurance and Quality Control Guidelines for the Acquisition and Reporting of Analytical Data in Support of Response Actions Conducted Under the Massachusetts Contingency Plan (MCP). Interim Final, Revision No. 2, January 27, 2003.

Ontario Ministry of the Environment and Energy (MOEE), 1996. Guideline on Sampling and Analytical Methods for Use at Contaminated Sites in Ontario, December 1996.

Ontario Ministry of the Environment (MOE), 2000. Protocol for Sampling and Testing at PCB Storage Sites in Ontario. ISBN 0-7794-0020-8. PIBS 4049E, January 2000.

Ontario Ministry of the Environment (MOE), 2002. Principles of Sampling and Analysis of Waste for TCLP under Ontario Regulation 347. Laboratory Services Branch, February 2002.

ATTACHMENT ASpecific Parameter Lists for Laboratory

Testing

Documents

CITY OF HAMILTON · CITY OF HAMILTON ... and to adopt the Toxicity Characteristic Leaching Procedure ... the drill cuttings were often liquefied by the time they were brought to