WESA 2010 ANNUAL REPORT WASTE MANAGEMENT OTTAWA LANDFILL PREPARED FOR:

Transcription

1 WESA 2010 ANNUAL REPORT WASTE MANAGEMENT OTTAWA LANDFILL PREPARED FOR: WASTE MANAGEMENT OF CANADA CORPORATION 2301 Carp Road, R.R. # 3 Carp (Ottawa), Ontario K0A 1L0

2 FINAL REPORT 2010 ANNUAL REPORT WASTE MANAGEMENT OTTAWA LANDFILL Prepared for: WASTE MANAGEMENT OF CANADA CORPORATION 2301 Carp Rd., R. R. # 3, Carp (Ottawa), Ontario K0A IL0 Prepared by: WESA Inc Carp Rd., Box 430 Carp (Ottawa), Ontario KOA ILO Project No. B2533 March 2011 Ref: CB Annual Report-Final-March 2011.docx

3 WM Ottawa Landfill 2010 Annual Report FINAL REPORT EXECUTIVE SUMMARY This report provides a summary and analysis of the operational activities and the environmental monitoring program at the Waste Management of Canada, Ottawa Landfill Site during the period from January 1 to December 31, The report is prepared in accordance with Condition 4.2 (Annual Report) of Certificate of Approval A for the Ottawa Landfill and in conformance with the Environmental Monitoring Plan approved by MOE in April Environmental Monitoring The environmental monitoring program included water quality analyses for leachate, groundwater and surface water on and around the site, as well as landfill gas monitoring across the property. The groundwater flow directions and the calculated hydraulic gradients interpreted from the 2010 monitoring program are consistent with the results obtained in previous years, with no significant changes being noted. The direction of groundwater flow in the overburden/shallow bedrock is predominantly towards the north-northeast. The predominant direction of groundwater flow in the deep bedrock unit is towards the northeast. Groundwater elevations in the overburden/shallow bedrock unit are depressed in the area along the Carp Road boundary of the site as a result of the purge well pumping system s operation. Potential groundwater impacts from the WM Ottawa Landfill are assessed using a suite of parameters known as the Assessment Parameters. Exceedances of five general water quality Assessment Parameter limits (COD, ammonia, nitrate, TKN and potassium), and five volatile organic compounds (trichloroethylene, vinyl chloride, 1,1-dichloroethane, cis-1,2-dichloroethylene and chloroethane) were observed during the 2010 reporting period in monitoring wells located downgradient from the landfill footprint. Generally, groundwater concentrations in monitoring wells downgradient of the purge well system remain stable or have decreased from peak concentrations since commissioning of the forcemain in November Waste Management has submitted an application to increase the area of the CAZ further to the north to encompass properties where exceedances of Reasonable Use Limits are currently observed. Continued quarterly monitoring of groundwater conditions is recommended in two areas: east of the landfill on the CAZ and MTO properties (W48-2, W56-2 and W79), and north of the landfill at W64.

4 WM Ottawa Landfill 2010 Annual Report FINAL REPORT The surface water quality in the ditch north of Highway 417, to the east of the landfill site has shown improvements since the start of purge well system operations. Parameters that exceeded the PWQO during this reporting period included un-ionized ammonia (one result, potentially anomalous), iron and boron. The drainage ditch receives runoff from the highway and potential sources other than the landfill site, which may be contributing to the observed concentrations of these and other parameters. Landfill gas monitoring in gas probes installed around the site did not detect any levels of methane concentrations. No exceedances of the trigger limit for combustible gas readings were observed in Site Operations Approximately 31,903 tonnes of solid waste and 40,891 tonnes of hydrocarbon-impacted soil were accepted at the WM Ottawa Landfill during the 12-month period from January 1 to December 31, As of December 31, 2010, Waste Management estimates that there is available airspace remaining for approximately 98,387 cubic metres of waste to be disposed at the site (including daily cover). As the remaining site life is restricted by Provincial Officers Order, the site is to be capped with final cover by September In 2010, the upgrades to the purge well system were completed in order to improve pumping rates and the effectiveness of hydraulic capture along the eastern boundary of the site. The volume of effluent (leachate and impacted groundwater) discharged from the site in 2010 was 281,479 cubic metres, representing an increase of 16.6% from the previous year. The landfill gas extraction system at the landfill was expanded by adding five vertical wells during this reporting period. At the end of 2010, the gas extraction system included a total of 182 vertical wells on and around the existing landfill and 5 vertical wells around the closed south cell.

5 WM Ottawa Landfill 2010 Annual Report FINAL REPORT TABLE OF CONTENTS EXECUTIVE SUMMARY 1.0 INTRODUCTION ENVIRONMENTAL MONITORING METHODOLOGY PRE-SAMPLING PROCEDURES GROUNDWATER MONITORING SURFACE WATER MONITORING ANALYTICAL REQUIREMENTS LANDFILL GAS MONITORING QA/QC PROGRAM RESULTS AND DISCUSSION GROUNDWATER ELEVATIONS GROUNDWATER CHEMISTRY QA/QC Program Results Leachate Chemistry Background Groundwater Quality Groundwater Quality Guideline B7 (Reasonable Use) and Assessment Parameter Limits SURFACE WATER QUALITY MONITORING WELL STATUS AND CONDITIONS LANDFILL GAS MONITORING SITE OPERATIONS WASTE AND COVER PLACEMENT Site Plan Waste Disposal Quantities Site Volumetric Evaluation and Remaining Capacity Final Cover Placement OPERATIONAL PROCEDURES, EQUIPMENT AND FACILITIES Changes to Operations, Equipment or Facilities Landfill Inspections Complaints & Enquiries OPERATION AND PERFORMANCE OF ENGINEERED FACILITIES Purge Well System Operations & Maintenance Monitoring of Purge Well System Effectiveness Landfill Gas Extraction System Surface Emission Surveys FINANCIAL ASSURANCE UPDATE Page i

6 WM Ottawa Landfill 2010 Annual Report FINAL REPORT LIST OF TABLES Table 1: Summary of Groundwater Monitoring Program Table 2: Summary of Surface Water Monitoring Program Table 3: Water Levels Overburden/Shallow Bedrock and Surface Water Table 4: Water Level Data Deep Bedrock Table 5: Leachate Chemistry Table 6: Overburden/Shallow Bedrock Groundwater Quality (PIL, SIL) Table 7: Overburden/Shallow Bedrock Groundwater Quality (VOCs) Table 8: Assessment Parameter Limit Exceedances in Designated Groundwater Monitors Table 9: Surface Water Quality (PIL, SIL) Table 10: Surface Water Quality (VOCs) Table 11: Landfill Gas Probe Monitoring Table 12: Summary of Weekly Quantities of Waste Received, January to December 2010 LIST OF FIGURES Figure 1: Site Location Map Figure 2: Site Plan and Monitoring Locations Figure 3: Groundwater Elevation Monitoring (Overburden/Shallow Bedrock) Figure 4: Groundwater Elevation Monitoring (Deep Bedrock) Figure 5: Assessment Parameter Concentrations Spring 2010 Figure 6: 2010 Site Plan and Topography LIST OF APPENDICES Appendix A: Concentration - Time Trends at Selected CAZ Monitoring Wells Appendix B: Concentration Time Trends at Selected Monitoring Wells North of CAZ Appendix C: Borehole Logs, Replacement Purge Wells PW2R1 and PW6R1 Appendix D: Purge Well Water Level Monitoring, January to December 2010 Page ii

7 WM Ottawa Landfill 2010 Annual Report FINAL REPORT 1.0 INTRODUCTION This report provides a summary and analysis of environmental monitoring and operational activities at the Waste Management of Canada (WM) Ottawa Landfill site during the 2010 reporting period (January 1 to December 31). The report is prepared in accordance with Condition 4.2 of Certificate of Approval A for the landfill site. The scope and rationale of the environmental monitoring program are described in the Environmental Monitoring Plan (EMP), which was approved by the MOE in April The current EMP represents an update of the previous version approved in Modifications were made to the monitoring program to reflect the addition of a Contaminant Attenuation Zone (CAZ) to the landfill site. In October 2008, a subsequent amendment was made to the EMP to include four groundwater monitoring locations east of Carp Road in the monitoring program. The methodology and results of the water quality monitoring program are presented in Sections 2.0 and 3.0, respectively. A summary of the site operations and performance of engineered facilities are presented in Section 4.0. The WM Ottawa Landfill is comprised of a 35 hectare landfill area within a 104 hectare landfill site located on Lots 3 and 4, Concession III of the former Township of West Carleton (Geographic Township of Huntley) in the City of Ottawa, Ontario (see Figure 1). An additional hectares of land east of the landfill site is designated as a Contaminant Attenuation Zone (CAZ). The landfill site is licensed to receive domestic, commercial and non-hazardous solid industrial wastes. The landfill site layout, including all of the 2010 monitoring locations, is shown on Figure 2. Note that the topographic contours and features shown on Figure 2 reflect the conditions on the landfill site and surrounding area established from digital mapping based on a flyover on June 29, Updated topographic contours and features of the landfill site, from aerial photography completed on June 15, 2010, are presented on Figure 6 (see discussion in Section 4.0, Site Operations). 2.0 ENVIRONMENTAL MONITORING METHODOLOGY The 2010 environmental monitoring programs were all completed in accordance with the approved EMP. All of the monitoring and sampling activities were completed by trained WESA personnel experienced in WM and standard industry protocols and quality assurance techniques. Page 1

8 WM Ottawa Landfill 2010 Annual Report FINAL REPORT 2.1 PRE-SAMPLING PROCEDURES Prior to the start of each sampling event, the following procedures were completed: Sample bottles were ordered and sample sets were checked and labelled; Sufficient extra sample sets were included to cover QA/QC sampling requirements; Sample bottle preservative requirements were checked; Instruments used to measure field parameters were checked and calibrated (instrument calibrations and/or checks were performed on a regular basis and records of calibration are kept on file); All sampling team members provided written verification of their knowledge of, and commitment to WM procedures, protocols and quality assurance techniques. 2.2 GROUNDWATER MONITORING Groundwater monitoring locations in the vicinity of the Ottawa Landfill site are divided into the following three categories: P series monitors - screened above bedrock (in the overburden layer); W series monitors - screened within the bedrock unit or across the overburden-bedrock interface; PW series monitors - either screened across the overburden-bedrock interface or within shallow fractured bedrock (the PW designation indicates that these wells are part of the purge well system). Water Levels All water level measurements were obtained using an electronic water level tape that was decontaminated prior to use at each location. Water level measurements are referenced to the top of the well casing at each monitoring well location. Surface water elevations at monitoring locations S1, S2 and S3 (in the ditch on the north side of Highway 417) are referenced to staff gauges installed at each monitoring location. Surface water elevations at the Pond and Retention Pond (S17) locations on the landfill site were surveyed using a levelling instrument. A complete set of water level data, including all operational monitoring wells located on and around the Ottawa Landfill site was collected on April 26, Groundwater and surface water elevation data are plotted on Figures 3 and 4 for the overburden/shallow bedrock and deep bedrock units, respectively. Page 2

9 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Water levels are also collected on a monthly basis at 33 selected monitoring wells and surface water locations to assess the effectiveness of the purge well system. Well Purging All P and W series monitoring wells were purged and sampled using dedicated positive displacement foot valve pumps and polyethylene tubing. Well purging methodology was based on previous knowledge of the yield of each monitoring well as discussed below: Flow cell techniques were used for high yield wells that could provide sufficient water for continual pumping. At these locations, purging continued until the ph, temperature and conductivity had stabilized (using a multi-meter/flow cell). All readings were recorded on WM field information forms. Low yield monitoring wells were pumped until at least one borehole volume had been removed by pumping the water level down to the top of the screen and then allowing the well to recover until additional water could be removed. Field parameters were obtained from the available purge water. The PW series purge wells are continuously pumping and the flow from each well can be sampled from individual sampling ports located at the well heads. Groundwater Field Parameters Field parameters were measured at each groundwater monitoring location with sufficient water using a YSI model 556 MPS multi-meter. The instrument was calibrated and/or checked on a daily basis for ph, conductivity and dissolved oxygen (DO). As discussed above, all records of calibration are kept on file. Irrespective of the yield characteristics of each well, an attempt was made at each location to collect basic field parameters (ph, temperature and conductivity). Field parameters and other site-specific information were recorded on WM field information forms at the time of data collection. Field information forms were collated, checked and filed according to WM quality assurance procedures. Any deviations from WM approved methodology and protocols were documented on the field information forms along with a rationale explaining the deviation and all subsequent actions taken. Page 3

10 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Groundwater Sampling All groundwater samples were collected in accordance with WM and standard industry protocols. Samples were collected in new laboratory-provided sample containers. Upon collection, samples were placed immediately into a cooler with ice. All samples were delivered to Maxxam Analytics Inc. in Ottawa, Ontario for analysis under strict chain of custody procedures. Holding times for all samples conformed to laboratory defined requirements. Analytical requirements were all cross-referenced to the current WM/Maxxam laboratory master list. Details of the groundwater monitoring program, including locations, frequency and analytical requirements, are presented in Table 1. Monitoring well locations are indicated on Figure SURFACE WATER MONITORING All surface water samples were collected in accordance with WM and standard industry protocols. Upon collection, samples were placed immediately into a cooler with ice. All samples were delivered to Maxxam Analytics Inc. in Ottawa, Ontario for analysis under strict chain of custody procedures. Holding times for all samples conformed to laboratory defined requirements. Analytical requirements were all cross-referenced to the current WM/Maxxam laboratory master list. Details of the surface water monitoring program, including locations, frequency and analytical requirements, are presented in Table 2. Surface water monitoring locations are indicated on Figure 2. Surface Water Field Parameters Field parameters were measured at each surface water location using a YSI model 556 MPS multi-meter. Calibration procedures were all completed according to WM protocols. Field measurements of ph, temperature, conductivity and dissolved oxygen were taken from the surface water bodies at the time of sample collection. Estimates of surface water flow were recorded, where possible. Field parameters and other site-specific information were recorded on WM field information forms at the time of data collection. Field information forms were collated, checked and filed according to WM quality assurance procedures. Page 4

11 WM Ottawa Landfill 2010 Annual Report FINAL REPORT 2.4 ANALYTICAL REQUIREMENTS All groundwater samples were analyzed for the site-specific parameter list as specified in the Environmental Monitoring Program: Primary Indicator List (PIL) - Assessment Parameters Secondary Indicator List (SIL) Ammonia (total) Alkalinity Conductivity Boron ph Cyanide (free) Chemical oxygen demand Hardness Dissolved organic carbon Nitrate Nitrite Total dissolved solids Barium Iron Magnesium Potassium Calcium Manganese Total kjeldahl nitrogen Cadmium Sodium Chloride Sulphate Chromium (total) Lead In addition, groundwater samples from W44-3, W48-2, W53-1, W53-2, W54-2, W56-2, W72, W79, W80, W81 and WS2 were analyzed for the following volatile organic compounds (VOCs): Volatile Organic Compound (VOC) List Primary Indicator List (PIL) Assessment Parameters Secondary Indicator List (SIL) Benzene Bromodichloromethane Cis-1,3-Dichloropropylene Trichloroethylene Bromoform Trans-1,3-Dichloropropylene Vinyl chloride Bromomethane Ethylbenzene Chlorobenzene Carbon tetrachloride Styrene 1,4-Dichlorobenzene Chloroform 1,1,2,2-Tetrachloroethane 1,1-Dichloroethane Chloromethane 1,1,1,2-Tetrachloroethane Chloroethane Dibromochloromethane Tetrachloroethylene Cis-1,2-Dichloroethylene 1,2-Dibromoethane Toluene 1,2-Dichlorobenzene 1,1,1-Trichloroethane 1,3-Dichlorobenzene 1,1,2-Trichloroethane 1,2-Dichloroethane Trichlorofluoromethane 1,1-Dichloroethylene 1,3,5-Trimethylbenzene Trans-1,2-Dichloroethylene m&p-xylene 1,2-Dichloropropane o-xylene Methylene chloride Page 5

12 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Surface water samples were analyzed for the list of parameters included in the Primary and Secondary Indicator Lists (PIL and SIL). Samples collected in the Spring of 2010 from locations S1 and S3 in the Highway 417 ditch were analyzed for VOCs. Samples that are representative of leachate quality at the WM Ottawa Landfill were collected at the discharge from pumping station No. 3 at the GDT treatment building. This leachate is generated within the lined areas of the landfill. A leachate sample was also collected from purge well PW8 (drilled through waste at the downgradient end of the closed south cell). This leachate is representative of older waste disposed in the south cell. The leachate samples were collected twice in 2010 (Spring and Fall), and analyzed for the list of Primary (PIL), Secondary (SIL) and VOC parameters specified in the EMP. 2.5 LANDFILL GAS MONITORING Landfill gas was monitored on a monthly basis by WM personnel using a hand-held multi-gas monitoring instrument (Landtec GEM2000 Landfill Gas Analyzer). Readings were collected from eight on-site gas monitoring wells (GM1 to GM8) during each monitoring event. Gas monitoring locations are shown on Figure 2. Note that the gas monitoring program in the EMP is in addition to monitoring completed for the landfill gas extraction and recovery system installed at the site. 2.6 QA/QC PROGRAM A comprehensive quality assurance/quality control (QA/QC) program was implemented in accordance with WM requirements. Requisite numbers of blind field duplicates, trip blanks, field blanks and equipment blanks were collected and submitted for analysis during each sampling program according to WM protocols. Analytical data from the 2010 sampling programs were checked and verified according to the requirements of the WM monitoring and reporting QA/QC evaluation checklist, as detailed below: Field information sheets were checked for completeness; Chain of custody forms were checked for accuracy and completeness; All hard copies, including instrument calibration forms, field information sheets and chain of custody forms, were filed for future reference if required; Analytical data were checked to ensure all required analyses were performed; Page 6

13 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Analytical results for each parameter were compared to available historical data for each sample interval using SiteFX software; Duplicate samples were compared against their corresponding regular sample counterpart using SiteFX and Excel software; Field blank samples were checked to ensure there were no detections; Data Quality Review (DQR) requests were submitted to Maxxam if duplicate sample analytical results were outside of WM s established limits for variance; DQR requests were submitted to Maxxam if individual analytical results were outside of WM s established limits for variance with respect to available historical data; and, DQR requests were submitted to Maxxam if detections were identified in any field blank or trip blank samples. QA/QC program findings are presented in Section below. 3.0 RESULTS AND DISCUSSION The figures and tables referenced in the following sections are all located at the end of the report text. Results are presented and compared with historical data and MOE criteria where applicable. Information on the site physiography, hydrogeology and surface hydrology has previously been documented and will not be repeated herein. 3.1 GROUNDWATER ELEVATIONS Water level data collected during the annual monitoring event on April 26, 2010 are presented in Tables 3 and 4 for overburden/shallow bedrock and deep bedrock monitoring wells, respectively. Groundwater and surface water elevation data are plotted on Figure 3 for the overburden/shallow bedrock zone, and on Figure 4 for the deep bedrock zone. In general, the directions of groundwater flow interpreted for the overburden/shallow bedrock and for the deep bedrock are consistent with previous findings. Overburden/Shallow Bedrock The groundwater contours shown on Figure 3 were developed from the annual Spring sitewide water level monitoring event, as per the EMP. As shown on the figure, the 2010 water level data indicate that across the majority of the landfill site, the direction of groundwater flow within Page 7

14 WM Ottawa Landfill 2010 Annual Report FINAL REPORT the overburden/shallow bedrock aquifer is towards the north-northeast, with an average gradient of approximately to Larger hydraulic gradients are observed along the eastern boundary of the site and onto the CAZ where the gradient is approximately to Groundwater elevation data in the vicinity of the Carp Road site boundary reflects the influence of the purge well capture system. Groundwater elevations are generally depressed in the purge wells relative to adjacent monitoring wells, indicating that a zone of capture is established along the Carp Road property boundary. It is noted that the April 2010 water level data indicate a possible gap in the capture zone around purge well PW5. As described further in Section 4.3.2, this well was rehabilitated as part of the purge well system upgrades and achieved improved capture throughout the remainder of the year. Similarly, at the time of the Spring monitoring program, the discharge line at PW2 was being re-constructed into the common header pipe and pumping was sporadic. This well (and its replacement PW2R1, see discussion in Section 4.3.1) achieved good capture at all other times of the year. The water levels in the vicinity of the purge well system are measured monthly (see discussion in Section 4.3 and monitoring results in Appendix D). Deep Bedrock The potentiometric elevations measured in deep bedrock monitoring wells during the 2010 annual monitoring event are shown on Figure 4. Groundwater flow in the deep bedrock is interpreted to be controlled by isolated fracture zones, which do not appear to be well-connected hydraulically based on the variable hydraulic heads observed across the site. The 2010 data show that hydraulic heads in the deep bedrock are variable across the site and the nearby properties, ranging from to metres above sea level (masl). For this reason, groundwater elevations have not been contoured (ie., the deep bedrock zone appears to be discontinuous). Upgradient and along the western boundary of the site, where the bedrock is found at shallower depths, the hydraulic heads in the deep bedrock zone are all greater than 120 masl and are generally consistent with those in the overburden/shallow bedrock zone. This indicates that there may be more hydraulic connectivity between the shallow and deep bedrock in this area. Further to the east, the hydraulic heads in the deep bedrock range between 92.5 and masl, and are generally not consistent with the shallow bedrock, indicating less vertical and horizontal connectivity. Overall, groundwater flow in the deep bedrock appears to be controlled by the regional groundwater flow system, oriented toward the Carp River. No significant changes in the deep bedrock groundwater flow direction were noted relative to monitoring programs conducted in previous years. Page 8

15 WM Ottawa Landfill 2010 Annual Report FINAL REPORT 3.2 GROUNDWATER CHEMISTRY QA/QC Program Results In 2010, the sampling and analytical quality assurance/quality control program for groundwater monitoring included field duplicate samples, trip blanks, and field blanks. Historical Screening A total of 92 individual parameter concentration results from the spring 2010 monitoring event were identified as possible outliers when compared to historical concentration ranges. Of these, 91% (or 84 results) occurred at monitoring locations were the historical data sets were not sufficient to be considered statistically significant (i.e., at monitors where the parameters in question had been analyzed ten times or fewer). Of the remaining eight possible outliers, three were considered not statistically significant as the results in question were very close to the laboratory method detection limits (MDLs); two had relative percent differences (RPDs) between the results and the historical points of comparison of less than 50% and three had an RPD of greater than 50%. Of these three results with RPDs of greater than 50% between the results and the historical points of comparison, two were from purge well samples, which often exhibit variability in their ranges of analytical results. The results for chemical oxygen demand (COD) that were identified as potential outliers for three wells with limited data sets (only four sampling events each) were submitted to Maxxam Analytics for a data quality review; the lab reviewed the data and reconfirmed the results. A total of 34 individual parameter concentration results from the fall 2010 monitoring event were identified as possible outliers when compared to historical concentration ranges. Of these, 82% (or 28 results) occurred at monitoring locations were the historical data sets were not sufficient to be considered statistically significant. Of the remaining six possible outliers, two were considered not statistically significant as the results in question were very close to the laboratory method detection limits (MDLs); three had relative percent differences (RPDs) between the results and the historical points of comparison of less than 50% and only one had an RPD of greater than 50%. Overall, the 2010 monitoring results were consistent with the historical data set for the site. Once the data sets for new wells and parameters that were added to the updated EMP increase to include sufficient information, historical screening will be performed on subsequent results. Page 9

16 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Blind Field Duplicates Field duplicate samples were also closely scrutinized to identify parameters potentially exceeding WM s acceptable variability range. No discrepancies of any significance were noted in the 2010 results. Minor discrepancies included the following: W62-2: COD reported as 80 mg/l in the regular sample; 100 mg/l in the duplicate and DOC reported as 2.2 in the regular sample; 1.7 in the duplicate; W64: Nitrite reported as 0.03 mg/l in the regular sample; 0.02 mg/l in the duplicate. Field Blanks The results for most field blank sample parameters were below detection limits. A total of twenty-six low level detections were identified (alkalinity, chemical oxygen demand, chloroform, conductivity and dissolved organic carbon). None of these low level detections indicated any significant potential concerns with the analytical results. DOC Filter Blanks The dissolved organic carbon results from the filter blank samples ranged from 0.4 to 4.0 mg/l in the spring results and from 0.5 to 0.7 mg/l in the fall results. None of these detections presented any potential concerns with the interpretation of the analytical results. Trip Blanks The results for all VOC trip blank sample parameters were below detection limits. Equipment Blanks All sampling equipment used during the April 2010 monitoring event was dedicated, so no non-dedicated sampling equipment (ie. down-hole pumps or peristaltic pumps) was used to sample any wells. Consequently, no equipment blanks were required. QA/QC Summary Overall, the QA/QC sample results reflect the suitability of field methods and sample handling procedures used in the monitoring program. The variations noted above do not affect any of the interpretations made in this report. Page 10

17 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Other elements of the QA/QC program (ie., checking of documentation and results for variant data) were successful in that a small number of minor errors and omissions were positively identified, and were subject to corrective actions. The resultant data set can therefore be relied on, in terms of overall accuracy and repeatability Leachate Chemistry Leachate from the waste disposal areas at the WM Ottawa Landfill is characterized by the following parameters: Leachate Assessment Parameters boron chemical oxygen demand (COD) dissolved organic carbon (DOC) potassium ammonia total kjeldahl nitrogen (TKN) VOCs have been detected at low concentrations in the leachate and in wells immediately downgradient of the unlined disposal areas at the site. VOCs that are generally detected in leachate include: benzene toluene xylenes chlorobenzene 1,2-dichlorobenzene (o) 1,4-dichlorobenzene (p) ethylene dibromide methylene chloride cis-1,2-dichloroethylene 1,1-dichloroethane chloroethane In 2010, leachate was monitored at PW8 (downgradient of the closed south cell, drilled through waste materials) and at the discharge from Pumping Station No. 3 (P3) in the GDT Building (leachate from lined cells). The results for leachate chemistry are presented in Table 5. Concentrations of the leachate indicators remain elevated at the leachate monitoring locations. Page 11

18 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Background Groundwater Quality Background groundwater quality in the overburden/shallow bedrock zone is monitored at three locations: W57-2, W70 and W77-2 The 2010 results for these monitors are included on Table 6. The results for the background monitors indicate relatively low concentrations of water quality parameters, and are generally consistent with previous results. The previously elevated COD concentration observed in 2009 at W57-2 (76 mg/l) appears to have been anomalous, as the 2010 concentration was considerably lower (15 mg/l) Groundwater Quality Groundwater quality analytical results for samples collected from the overburden-shallow bedrock monitoring wells are presented in Table 6 (PIL and SIL parameters) and Table 7 (VOCs). Historical data from 2000 onwards are also shown in the tables. Results from dates prior to 2000 are available in the 2007 Annual Report. The following discussion is divided into three areas: onsite, western and northern boundaries, and eastern boundary/downgradient. The locations of the monitoring wells are shown on Figure 2, and the results for the water quality assessment parameters for the WM Ottawa Landfill are shown on Figure 5. On-site Groundwater Quality, Active Waste Disposal Area Groundwater quality is monitored on-site at the following locations adjacent to the northern unlined footprint: P79, P80-1 and W63 The concentrations of leachate indicator parameters at P79, immediately adjacent to the unlined landfill, have gradually increased since The concentrations observed in 2010 are similar to or slightly lower than the 2008 and 2009 levels. At P80-1, located to the west, the concentrations have remained stable or have increased slightly since 2000 (eg., iron, COD, conductivity). Chloride concentrations have decreased since Monitoring well W63 is located in the former Dibblee Pit area, north of the unlined landfill and east of the stormwater recharge pond. The concentrations of most dissolved parameters at this location have increased since 2004; the 2010 concentrations are generally similar to the 2008 and 2009 concentrations. It is noted that the concentrations of several water quality parameters are higher at W63 than at locations closer to Page 12

19 WM Ottawa Landfill 2010 Annual Report FINAL REPORT the landfill footprint (eg., alkalinity, ammonia, barium, chloride, hardness, sodium, TDS, etc.). This indicates that the source of the elevated concentrations at W63 may be due to other factors, such as the stormwater recharge pond or the former biosolids storage in this area. Western and Northern Boundaries Groundwater quality in the overburden/shallow bedrock zone along the western and northern boundaries of the site is measured at the following locations: Western boundary W60-2, W61 Northern boundary W62-2, W64 Monitoring well W60-2 is located in the northwest corner of WM property, and W61 is located at the northwest corner of the landfill footprint. Relatively low concentrations of dissolved solids, consistent with background concentrations were observed in these monitors along the western boundary of the site in Concentrations of some parameters, including sodium and boron, are noted to have increased at W60-2 since 2004; however, overall TDS and conductivity remain low. Monitoring wells W62-2 and W64 are located from west to east, respectively, along the central portion of the northern boundary of WM property. The 2010 concentrations of dissolved parameters at W62-2 generally reflect background groundwater conditions. The elevated levels of some parameters reported by the laboratory in 2009 (eg., calcium, hardness, iron and manganese) were confirmed to be anomalous, based on the historic and 2010 results. Monitor W64 is situated at the downgradient end of an area of ponded water that collects runoff from a swale that originates at the northwest corner of the landfill footprint. The concentrations of indicator parameters at W64 decreased in 2010 relative to 2008 and 2009 results, and were generally consistent with the original 2004 levels. The November 2010 nitrate concentration was elevated relative to previous results. Eastern Boundary and Downgradient Groundwater quality in the overburden/shallow bedrock zone on the downgradient side of the landfill is represented by the following monitoring well locations: Page 13

20 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Purge wells PW1 to PW10, and PW20 On-site along eastern boundary, north of the CAZ W65-2, W72, W80 and W81 Off-site, north of the CAZ W53-1, W53-2, W54-2 and WS2 CAZ property W44-3, W56-2 and W79 MTO property (Highway 417) W48-2 Concentrations of dissolved parameters observed in samples collected from the purge wells (denoted as PW) represent leachate-impacted groundwater that is being pumped from the subsurface and removed along the downgradient boundary of the landfill site. As expected, the concentrations of leachate indicator parameters (PIL and SIL) are generally higher in the purge wells than in the downgradient monitoring wells. Along the alignment of the purge well system, the highest concentrations are generally observed around the closed south cell (PW7 and PW8), with lower concentrations to the north and south. The monitoring wells located in the northeast corner of WM property (W65-2 and W72) have been sampled since The concentrations of indicator parameters remain at relatively low levels and do not show evidence of leachate impacts. Monitoring wells W80 and W81, installed in 2008, are located immediately downgradient of the purge well system on WM property, and are within the hydraulic influence of the system. The concentrations of the leachate indicator parameters are elevated at these monitors relative to background conditions, as is expected. The concentrations are generally less than the purge wells to the immediate west (PW1, PW2, PW3 and PW4). Four groundwater monitors are located on the east side of Carp Road, north of the existing CAZ: W53-1, W53-2, W54-2 and WS2. The concentrations of the water quality parameters have generally remained stable since installation of these monitors. A slight increase in conductivity, chloride and COD has been noted. The CAZ property is monitored at three locations (listed from north to south): W79, W44-3 and W56-2 (note that monitor location W55-2 is being added to the EMP, beginning in 2011). Monitors W79 and W56-2 were sampled quarterly in 2010, as per the recommendations from the 2009 Annual Report. Monitor W44-3 was sampled twice in 2010 (spring and fall). The concentrations of water quality parameters remain stable at W44-3. At W79, the concentrations of leachate indicators have increased since its installation in The concentrations of leachate indicators were consistent in 2010 relative to 2009 levels. However, the concentrations of other parameters such as sodium, chloride, calcium and TDS, remain higher at W79 relative to those observed in groundwater upgradient on the landfill property (eg., PW4, PW5, PW6, PW7, and W81). Hence, the concentrations of these parameters are indicative of a secondary source, such as Page 14

21 WM Ottawa Landfill 2010 Annual Report FINAL REPORT the storage of road salt and/or dust control products on the CAZ property. Much lower concentrations of these parameters are seen at W44-3 and W56-2, further to the south on the CAZ property. Discussion of the observed concentrations in relation to the Assessment Limits is presented in the following section. Monitoring well W48-2, located on MTO property north of Highway 417, shows elevated concentrations of leachate indicator parameters, specifically ammonia, TKN, COD and potassium. The 2010 concentrations are within the historical ranges observed since implementation of the purge well system, down from peak concentrations. The concentrations in the spring are typically less than those seen in fall, which is consistent with the seasonal trends observed historically at this monitor location. The following eleven monitoring wells were sampled in April 2010 for volatile organic compounds (VOCs) in accordance with the EMP: W44-3 W48-2 W53-1 W53-2 W54-2 W56-2 W72 W79 W80 W81 WS2 The results for the VOC groundwater monitoring are presented in Table 7. The concentrations of VOCs that are listed as Assessment Parameters are shown on Figure 5 for these locations. The low levels of VOCs observed in 2010 (chlorinated aliphatic hydrocarbons, chlorobenzenes and BTEX parameters) are consistent with previous monitoring results in terms of locations, constituents and concentrations Guideline B7 (Reasonable Use) and Assessment Parameter Limits Potential groundwater impacts from the WM Ottawa Landfill are assessed using a suite of parameters denoted Assessment Parameters, as agreed to with the Ontario Ministry of Environment. These parameters include nitrogen compounds (ammonia, TKN, nitrate and nitrite), potassium, COD, boron, and selected VOCs. The Assessment Parameters have low and relatively uniform background concentrations, elevated concentrations in the leachate, and no other apparent significant sources that affect groundwater concentrations at the monitoring locations. A summary of the parameters that are used to assess groundwater conditions downgradient from the WM Ottawa Landfill are presented below: Page 15

22 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Assessment Parameters with Reasonable Use Limits (mg/l) Assessment Parameters with Prediction Limits (mg/l) Boron 1.29 Ammonia 1.09 Nitrate (as N) 2.58 TKN 0.76 Nitrite (as N) 0.33 COD 52 Benzene Potassium 3 Trichloroethylene ,1-Dichloroethane Vinyl chloride Chloroethane Chlorobenzene Cis-1,2-Dichloroethene ,4-Dichlorobenzene The locations and concentrations of parameters that were higher than these limits in downgradient monitoring wells sampled as part of the Environmental Monitoring Program in 2010 are listed in Table 8. These locations are divided into four areas: western boundary, eastern boundary, northern boundary and the CAZ. The wells on the eastern boundary and the CAZ are all within the influence of (W72, W80 and W81), or downgradient from (W44-3, W48-2, W53-1, W53-2, W54-2, W56-2, W79 and WS2), the purge well system. The Assessment Parameter concentrations at these wells reflect the residual groundwater impacts remaining after implementation of the purge well system or alternate sources. Monitoring wells on the CAZ (W44-3, W56-2 and W79) and the MTO property (W48-2) do not exceed the Reasonable Use Limits (RUL) for any leachate indicators. Exceedances of statistical prediction limits are noted for ammonia, TKN, potassium and cis-1,2-dichloroethylene (W44-3 and W79 only). It should be noted that these parameters do not have any health or aesthetic-related standards specified in the Ontario Drinking Water Standards, Objectives and Guidelines. Plots of the concentrations of selected leachate indicator parameters (ammonia, nitrate, TKN, COD, potassium and boron) versus time for monitoring wells on the CAZ and MTO properties are presented in Appendix A. From the plots, it is seen that the concentrations at W44-3 have remained stable over time. At W56-2, the concentrations increased from 2004 to 2008, but have remained stable since At monitoring well W48-2 on the MTO property, concentrations increased from 2007 to 2009, and then decreased in It is recommended that quarterly monitoring continue for one additional year at W48-2 and W56-2 to confirm these stable and/or decreasing trends. Page 16

23 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Concentrations of some parameters (ammonia, TKN and COD) appear to be gradually increasing at W79. Although there are indications that some of the increasing parameter concentrations are not related to the landfill (eg., sodium and chloride concentrations are higher than on the landfill site, as noted above in Section 3.2.4), other parameters may be landfill related (ammonia, TKN, COD). In 2010, quarterly sampling was conducted at this monitoring location (April, July and November) as per the recommendations in the 2009 Annual Report. Samples were also collected in February 2011, continuing with the quarterly frequency. Although outside of the 2010 reporting period, the February 2011 results are included on Table 6. The quarterly results show gradually increasing concentrations from April to November; however, the February 2011 results show decreased concentrations. Based on these recent results and the fact that there are no RUL exceedances at this location, it is recommended that the quarterly monitoring program be continued for this monitor. Monitoring wells W53-1, W53-2, W54-2 and WS2 are located north of the existing CAZ. At these monitors, RUL exceedances were noted for the following parameters: Nitrate (W53-2 spring only, and W54-2 fall only); Trichloroethylene (WS2); and Vinyl chloride (W53-1). The 2010 observed concentrations for these parameters are below the historic peak levels. Other parameters that exceed the statistical prediction limits include ammonia, TKN, potassium, chloroethane, 1,1-dichloroethane and cis-1,2-dichloroethylene. Time-concentration plots for leachate indicators at these monitoring wells are presented in Appendix B. While some of the inorganic parameters show stable concentrations over time, others such as COD and potassium have increased slightly in 2009 and Concentrations at WS2 appear to have increased slightly. These trends will continue to be monitored in the 2011 program. The VOCs have stable or decreasing concentrations with time (see Appendix B). Waste Management has submitted an application to the MOE to designate as a CAZ the area north of the current CAZ. The proposed CAZ area includes the monitoring locations W53-1, W53-2, W54-2 and WS2. Along the western boundary of the site, one slight exceedance of the statistical prediction limit for potassium is observed at W60-2 (3.5 mg/l versus 3 mg/l). No RUL exceedances were observed in The water quality at this monitoring well reflects background groundwater conditions. Page 17

24 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Along the northern boundary, no exceedances of RUL were observed. Exceedances of the statistical prediction limits for ammonia, TKN, COD and potassium were observed at W64 and for COD at W62-2. The observed concentrations at W64 were less than those seen in 2008 and The water quality at this location appears to be influenced by the adjacent stormwater recharge pond, and does not appear to be impacted by leachate from the landfill footprint. It is recommended that one more year of quarterly monitoring be conducted at W64 to confirm these decreasing trends. 3.3 SURFACE WATER QUALITY The analytical results from the 2010 surface water sampling programs are presented in Tables 9 and 10. The sampling locations are shown on Figure 2, and the results for the leachate indicators are shown on Figure 5. The surface water Assessment Parameters and Limits for the WM Ottawa Landfill are as follows (as per the approved EMP): Parameter PWQO (mg/l) Primary Indicators (PIL) Un-ionized Ammonia 0.02 Boron 0.2 Benzene Trichloroethylene ,2-Dichloroethylene (cis & trans) Vinyl chloride ,1-Dichloroethane Chlorobenzene ,4-Dichlorobenzene Off-site surface water quality is monitored at three locations along the ditch north of Highway 417. These locations are denoted as S1, S3 and S10, and are shown on Figure 2. The 2010 results for these locations are consistent with previous years. The primary leachate indicators (ammonia, TKN, potassium, COD, etc.) are generally found at the lower limit of their historical ranges. A comparison of the 2010 water quality results to the Provincial Water Quality Objectives (PWQO) shows that exceedences were only found for boron at S1: S1 All units in mg/l Boron PWQO Apr Nov Page 18

25 WM Ottawa Landfill 2010 Annual Report FINAL REPORT In the 2010 environmental monitoring program, there were no PWQO exceedances of unionized ammonia reported in the spring. In the fall sampling, a ph probe malfunction was not detected until after the fieldwork. Consequently, the lab ph values were used to calculate the unionized ammonia concentrations. The results indicate a PWQO exceedance at S1. However, the lab ph values have always been significantly higher than the field ph readings, due to chemical reactions that occur after sampling, so the result should be viewed with caution. Sampling in spring 2011 will be used to confirm the ammonia concentrations (total and un-ionized). Iron continued to exceed the PWQO at S1, S3 and S10. It should be noted that iron is not an Assessment Parameter for the WM Ottawa Landfill. The presence of iron-stained sediment and suspended material at S1 and S3 may influence the iron concentrations observed in these samples. There were no VOCs detected in the surface water samples collected in Based on a lack of observed VOC impact to surface water, it is recommended that VOCs be eliminated from the surface water monitoring program. This recommendation requires the concurrence of the MOE Ottawa District Office prior to being implemented. 3.4 MONITORING WELL STATUS AND CONDITIONS During the various monitoring events conducted throughout the year, the conditions of monitoring wells were inspected. Any repairs, such as new locks, labels or well caps, etc. were made as necessary. Watertight casings and seals remain in place at all monitors to ensure that surface water or foreign materials do not infiltrate the wells. The monitoring wells comply with the applicable sections of Ontario Regulation 903 relevant to test holes as defined in the regulation, as well as the overall intent of the regulation to protect groundwater supplies. All of the monitoring wells included in the EMP are currently active. It is not expected that any of the wells will require alteration or decommissioning within the next reporting period. 3.5 LANDFILL GAS MONITORING Eight gas monitoring probes (GM1 GM8) are installed at locations between the landfill area and buildings, and along the eastern boundary of the landfill site. During the 2010 monitoring year, gas measurements were collected at monthly intervals by WM personnel using a hand-held multi-gas detector. The 2010 monitoring results are presented in Table 11. In 2010, no concentrations of methane were detected in the landfill gas probes. Consequently, none of the 2010 readings exceeded the trigger level of 50% LEL for further landfill gas evaluation. Page 19

26 WM Ottawa Landfill 2010 Annual Report FINAL REPORT 4.0 SITE OPERATIONS In the following sections of this report, a summary of the site operations and engineered facilities for the period covering January 1 to December 31, 2010 is presented in accordance with Condition of Certificate of Approval No. A Included in the summary are such issues as waste and cover placement, waste quantities, operational procedures, construction of additional facilities, and an estimate of remaining site capacity. Responses to public enquiries and/or complaints are also documented. 4.1 WASTE AND COVER PLACEMENT Site Plan A site plan illustrating the areas of waste placement, site facilities, and topographic features is presented on Figure 6. The site plan is based on an aerial topographic survey completed over the Ottawa landfill on June 15, The active disposal area of the landfill site during this reporting period was restricted to the top of the waste mound, as illustrated on Figure 6. The disposal activities followed the phasing plan described in the report entitled, Development and Operations Report, Laidlaw Waste Systems (Ottawa) Ltd., West Carleton Landfill Site, December 1994, which was prepared by Henderson, Paddon Environmental Inc Waste Disposal Quantities The Certificate of Approval for the WM Ottawa Landfill was amended on August 12, The amended Certificate requires that the Annual Report provide a summary of the weekly, maximum daily and total annual quantity of waste (in tonnes) received at the site (Condition g). A weekly summary of the municipal solid waste disposed at the landfill and Special Waste (hydrocarbon-impacted soil) used as cover material during this reporting period is presented in Table 12. The total quantity of waste disposed at the site from January to December 2010 was 31, tonnes. A total of 40, tonnes of Special Waste cover soil was also received. Based on site records, the maximum daily amount of municipal solid waste received at the site was tonnes on July 20, Page 20

27 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Site Volumetric Evaluation and Remaining Capacity Waste Management tracks the daily tonnages of waste and cover soil utilized at the Ottawa Landfill. The volumes of these materials are estimated from the tonnages using typical conversion factors for municipal waste (0.7 tonnes/m 3 ) and soil cover (1.8 tonnes/m 3 ). Based on these calculations, it is estimated that 45,575 cubic metres of waste, 19,752 cubic metres of daily cover and 11,990 cubic metres of intermediate cover were used at the site during this reporting period. Waste Management estimates that there is sufficient capacity for approximately 98,387 cubic metres of waste disposal operations including daily cover, but excluding the final cover, as of December 31, It is noted that a significant volume of additional airspace is being re-generated at the site each year as the waste degrades and the surface of the landfill settles. The remaining site life for the Ottawa Landfill is restricted by Provincial Officers Order. As of the end of September 2011, the site is to be capped with final cover and no further waste is to be disposed at the existing landfill. It is expected that there will be some amount of approved airspace capacity remaining available for disposal at that time Final Cover Placement During this reporting period, the second phase of the Beanie Cap for final cover and landfill gas management was constructed on the east side of the top of the landfill footprint. The second phase of construction incorporated an area of 0.6 hectares. In addition, 0.7 hectares of side slope final cap was placed adjacent to the Beanie Cap. In total, 7,800 m 3 of final clay cover was installed in The area was covered with topsoil and hydroseeded. 4.2 OPERATIONAL PROCEDURES, EQUIPMENT AND FACILITIES In general, waste disposal and covering operations at the WM Ottawa Landfill remained consistent with previous years' procedures, as described in the Development and Operations Report (Henderson Paddon Environmental, 1994). A quarterly Operations Report is submitted to the MOE as per Condition 2 of Provincial Officers Order THQR. Copies of the reports are posted on the WM website at: Planned construction and maintenance activities are also reported on the company s website at: Changes to Operations, Equipment or Facilities No major changes occurred to operational procedures during the reporting period. The following changes were made to site structures and facilities during this reporting period: Page 21

28 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Commissioning of the Landfill Gas to Energy plant was completed in Spring 2010, and stack testing was completed in May and June The plant was fully operational following commissioning and testing; it has the capacity to generate 6.4MW of energy under current landfill gas generation rates. The hybrid poplar tree cap on the closed south cell was maintained. The blend of irrigation water was gradually changed to 100% leachate. The landfill gas extraction system was expanded (see details below). One CAT 826 compactor and one D250 rock truck were added to the landfill equipment fleet during this reporting period. One D7 dozer was taken out of commission but remains in storage at the site Landfill Inspections During the period from January to December 2010, WM s landfill staff conducted regular visual inspections along the landfill side slopes. Repairs were completed as necessary to mitigate gas and leachate seepage. Repairs involved excavating into the waste and backfilling with clear stone to improve drainage, or drilling into the waste to promote vertical drainage. The surface water drainage ditch along the northeast toe of the landfill was re-graded and cleaned Complaints & Enquiries Odour complaints received directly and/or forwarded to Waste Management by other parties are documented and addressed in accordance with the comprehensive site-wide Certificate of Approval (Air) No C9JMR. In this regard, a quarterly report is submitted to the Ontario Ministry of Environment as per Condition 7 of the Certificate of Approval summarizing the odour complaints and the mitigation actions taken. A total of 66 odour complaints were received during WM staff analyzed each complaint to establish the source of the odour and to remedy the situation if warranted. No other complaints regarding landfill site operations were received by Waste Management during this reporting period. Page 22

29 WM Ottawa Landfill 2010 Annual Report FINAL REPORT 4.3 OPERATION AND PERFORMANCE OF ENGINEERED FACILITIES Descriptions of the operations and performance of engineered facilities, including the purge well system, leachate collection and pre-treatment system, and landfill gas extraction system are presented below Purge Well System Operations & Maintenance During this reporting period, a total of 281,479 cubic metres of liquid was discharged to the forcemain system and treated at the sewage treatment plant, an increase in volume of 16.6% over the previous year. A summary of the weekly amounts of effluent discharged through the off-site forcemain is provided below: Month Weeks (ending Saturday) Totals January February March April May June July August September October November December Annual Total Regular monitoring of the effluent quality was completed in accordance with the Leachate Agreement. Occasional exceedances of Total Kjeldahl Nitrogen (TKN) were noted in some of the weekly samples and were reported to the City of Ottawa in the regular monthly reports. The TKN concentrations are believed to be related to the proportion of leachate being discharged to the forcemain system, as WM worked to maximize the amount of leachate discharge. The following operational activities for the purge well system and leachate pre-treatment system were undertaken during this reporting period: The upgrades to the purge well system were completed from January to March These included a new 200mm diameter header system for the purge wells to discharge into. Individual sampling ports and flowmeters were installed at each purge well to permit sampling and flow monitoring. In addition, the electrical system for the purge wells was upgraded. Page 23

30 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Purge wells PW2 and PW6 were replaced with new drilled wells (PW2R1 and PW6R1, respectively), and the original wells were decommissioned in accordance with Ontario Regulation 903. Flow rates from the original purge wells had been declining, and after several attempts to improved flows through well rehabilitation, it was decided to replace the wells. The borehole logs for the new purge wells are presented in Appendix C. The wetland biofilter pilot test (WBPT) was operated until December 2010, at which time it was decommissioned and dismantled. An application was submitted to the MOE for the approval of a sequencing-batch reactor (SBR) treatment system to pre-treat leachate from the lined cells prior to discharge in the forcemain. The purpose of the SBR pre-treatment is to reduce the total nitrogen concentrations of the leachate, so that an increased volume of effluent meeting the City of Ottawa s discharge requirements can be removed from the site Monitoring of Purge Well System Effectiveness Pumping of the purge wells was conducted following the conditions of Permit to Take Water No FZNB4, issued on July 14, This permit allows the pumping of all purge wells at specified rates, with a total permitted taking of 2,495,700 litres per day. Groundwater levels were measured in the purge wells and surrounding monitoring wells monthly during the reporting period in order to observe the effectiveness of the purge well system. The groundwater level monitoring results are used to confirm that the system is able to maintain the hydraulic heads in the purge wells below the elevations of surrounding downgradient monitoring wells, and to make adjustments to flow rates where necessary. Well locations requiring maintenance are also identified through the water level monitoring. The monthly groundwater elevations are presented in Appendix D. Upgrades to the purge well system were completed in early 2010, and after the commissioning phase, improvements in water level drawdowns were noted. Water level hydrographs for the different areas of the purge well system (north to south) are presented in Appendix D to illustrate the various capture zones. The monthly water levels in purge wells PW1 to PW10 and PW20 are shown along with downgradient monitoring wells adjacent to the system. During the reporting period, the water levels in the purge wells were maintained below the downgradient monitoring wells with the following exceptions: Page 24

31 WM Ottawa Landfill 2010 Annual Report FINAL REPORT PW2, April PW3, February PW5, Jan-April PW7, Oct & Dec Pump checked and cleaned; pumping level restored (note that this well was re-drilled in June 2010). Well inspected; low-level switch replaced; pumping level restored. Pump checked and cleaned; well was rehabilitated with acid and mechanical surging; pumping level restored. Flows checked; water levels re-confirmed; no apparent problems reported (water levels have returned below W19 levels in 2011). As noted in Section 3.1, the groundwater contours generated from the April 2010 site-wide monitoring event indicate possible gaps in the capture zone at PW2 and PW5. Following completion of the system upgrades and well rehabilitation, the water level drawdowns in these wells increased, as shown on the hydrographs and in a groundwater contour plot from July 2010 (Appendix D) Landfill Gas Extraction System During this reporting period, Waste Management completed the installation and commissioning of 5 vertical wells. At the end of 2010, the gas extraction system for the main footprint included a total of 182 vertical wells on and around the existing landfill. In addition, 5 vertical wells have been installed around the closed south cell. A total of 1,600 metres of horizontal gas collector have been installed to date. The landfill gas (LFG) collection system was monitored on a daily basis during this reporting period. The LFG field was balanced weekly by WM technicians. The operational performance data were entered into the Landfill Gas Management System (LGMS) for analysis by the LFG operations manager. Operational records and monitoring information are collected and retained on-site in accordance with the Certificate of Approval (Air) for the landfill gas system. Regular preventative maintenance was completed on the LFG collection and blower system. A quarterly report was submitted to the Ontario Ministry of Environment, as per the requirements of the Certificate of Approval (Air). The air barrier system, where air is injected into the subsurface to prevent the off-site movement of landfill gas, continued to operate along the eastern boundary of the landfill site. Page 25

32 WM Ottawa Landfill 2010 Annual Report FINAL REPORT Surface Emission Surveys Surface air emission surveys were completed in April, June, August, October and December The surveys were used to check the integrity of the final clay cap, to identify areas where the gas extraction vacuum needed to be increased, and to locate potential new LFG extraction wells. The results of the surveys were sent to the MOE and posted on the WM website. The results of the surveys are presented in reports prepared by Genivar, which can be accessed from the WM website: Areas of methane emissions were identified within the landfill footprint in all surveys conducted in The survey reports recommended that the integrity of the soil cover be checked and modified if required, and the vacuum increased at the wells located in the area of higher emission rates. Elevated methane emissions were not detected along survey lines north and south of the landfill, and above the air sparging system along Carp Road. Three surface emission surveys are scheduled for completion in 2011, as per the site Certificate of Approval. 4.4 FINANCIAL ASSURANCE UPDATE As of December 31, 2010, financial assurance in the amount of $30,462,823 has been provided to the Director in accordance with Condition of Certificate of Approval No. A Condition of the Certificate of Approval requires that financial assurance be provided to the Director in accordance with the following schedule: January 31, $30,465,814 January 31, $29,243,405 January 31, $28,168,449 Page 26

33 WM Ottawa Landfill 2010 Annual Report FINAL REPORT A written report reviewing the financial assurance required by the Certificate of Approval is to be completed and submitted to the MOE Director by March 31, 2013, and at intervals of not more than three years thereafter. Respectfully submitted, David Harding, M.Sc. P.Eng. Project Manager Russell Chown, B.Sc. P.Geo. Senior Hydrogeologist Alison Street, B.Sc. P.Eng. Project Engineer Page 27

34 TABLE 1: SUMMARY OF GROUNDWATER MONITORING PROGRAM Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Monitor Locations Parameters Monitoring Frequency Overburden/Shallow Bedrock P31, P32, P37, P51, P55, P65, P68, P79, P80-1, P80-2, P83, P84, P85; W2-3, W3-3, W16-3, W19, W42-2, W44-3, W46-2, W48-2, W48-3, W49-3, W50-2, W50-3, W53-1, W53-2, W54-2, W55-2, W56-2, W57-2, W59-2, W60-2, W61, W62-2, W63, W64, W65-2, W66, W67-2, W69, W70, W72, W74, W77-2, W76-2, W79, W80, W81; PW1, PW2, PW3, PW4, PW5, PW6, PW7, PW8, PW9, PW10, PW11, PW13, PW15, PW17, PW19, PW20, PW25. P31, P32, P85; W16-3, W19, W46-2, W48-3, W49-3, W55-2, W56-2, W66, W67-2, W69, W80, W81; PW1, PW2, PW3, PW4, PW5, PW6, PW7, PW8, PW9, PW10, PW11, PW13, PW20, PW25. P79, P80-1; W57-2, W60-2, W61, W62-2, W63, W64, W65-2, W70, W77-2. PW1, PW2, PW3, PW4, PW5, PW6, PW7, PW8, PW9, PW10, PW20; W44-3, W48-2, W53-1, W53-2, W54-2, W56-2, W72, W79, W80, W81, WS2. W44-3, W48-2, W53-1, W53-2, W54-2, W56-2, W72, W79, W80, Groundwater Elevation Groundwater Elevation PIL and SIL PIL and SIL VOCs Once each year, in Spring Once each month Once each year, in Spring Twice each year, in Spring and Fall Once each year, in Spring W81, WS2. Deep Bedrock W42-1, W44-1, W46-1, W48-1, W50-1, W54-1, W56-1, W57-1, W59-1, W60-1, W62-1, W65-1R, W67-1, W76-1, W77-1. Groundwater Elevation Once each year, in Spring

35 TABLE 2: SUMMARY OF SURFACE WATER MONITORING PROGRAM Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Monitor Locations Parameters Monitoring Frequency On-site S17 (southeast stormwater recharge pond) Surface Water Elevation Once each year, in Spring Pond (on the former Bradley Pit) Surface Water Elevation Monthly Upgradient; Pond on former Reed Property SG-Reed Surface Water Elevation Once each year, in Spring Downgradient; Highway 417 Ditch S1, S2, S3 Surface Water Elevation Monthly S1, S3, S10 PIL and SIL Twice each year, in Spring and Fall S1, S3 VOCs Once each year, in Spring

36 TABLE 3: WATER LEVELS - OVERBURDEN/SHALLOW BEDROCK AND SURFACE WATER Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Name Most Recent Top of Casing Water Level Water Level Elevation (various dates) Elevation (masl) (mbtoc) (masl) 26-Apr-10 P blocked --- P dry --- P P P P P P P P P P P W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W Page 1 of 2

37 TABLE 3: WATER LEVELS - OVERBURDEN/SHALLOW BEDROCK AND SURFACE WATER Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Name Most Recent Top of Casing Water Level Water Level Elevation (various dates) Elevation (masl) (mbtoc) (masl) 26-Apr-10 PW PW PW PW PW PW PW PW PW PW PW PW PW PW PW PW PW SG-S SG-S SG-S SG-S17 N/A SG-Pond N/A SG-Reed Note: -1: deepest well in a multilevel monitor -2: intermediate well in a multilevel monitor -3: shallowest well in a multilevel monitor PW : Purge Well SG: Staff Gauge (at surface water monitoring locations) Page 2 of 2

38 TABLE 4: WATER LEVEL DATA - DEEP BEDROCK Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Name Top of Casing Water Level Water Level Elevation May-07 Elevation (masl) (mbtoc) (masl) 26-Apr-10 W W W W W W W W W W W W W65-1R W W W Note: -1: deepest well in a multilevel monitor

39 TABLE 5: LEACHATE CHEMISTRY Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date PW8 16-May < < < < < 0.1 < PW8 6-Dec < < < < 0.1 < PW8 29-May < < < 0.1 < PW8 7-Nov < < < < 0.1 < PW8 22-May < < < < 0.1 < PW8 28-Nov < < < < < 0.1 < PW8 4-May < < < < < 0.1 < PW8 5-Nov < < < < 0.1 < PW8 4-May < < < < PW8 13-Jul < < < < < 0.1 < PW8 24-Nov < < < < < 0.1 < PW8 28-Apr < < < < 0.1 < PW8 FD 28-Apr < < < < < 0.1 < PW8 7-Nov < < < < 0.1 < PW8 24-Apr < < < 0.1 < PW8 29-Nov < < < 0.1 < PW8 22-May < < < 0.1 < PW8 19-Nov < < < < 0.1 < PW8 30-Apr < < < 0.1 < PW8 FD 30-Apr < < < 0.1 < PW8 28-Oct < < < < < 0.1 < PW8 29-Apr < < < PW8 2-Nov < < < 0.1 < Leachate from 30-May < < < < < 0.1 < Lined Cells (P3) 19-Nov < < < 1 < < Apr < < < < < Oct < < 1 < < Apr < 5 < < Nov < < 2 < < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 1 of 2

40 TABLE 5: LEACHATE CHEMISTRY Waste Management Ottawa Landfill 1,1,1,2-Tetrachloroethane mg/l 1,1,1-Trichloroethane mg/l 1,1,2,2-Tetrachloroethane mg/l 1,1,2-Trichloroethane mg/l 1,1-Dichloroethane mg/l 1,1-Dichloroethene mg/l 1,2-Dichlorobenzene (o) mg/l 1,2-Dichloroethane mg/l CB2533 Tables 2010.xlsx Location Sample Date PW8 23-May-08 < < < < < < < < < < < < < < PW8 19-Nov-08 < < < < < < < < < < < < < < < PW8 30-Apr-09 < < < < < < < < < < < < < < PW8 28-Oct-09 < < < < < < < < < < < < < < PW8 29-Apr-10 < < < < < < < < < < < < < < Leachate from 30-May-08 < < < < < < < < < < < < < < < < Lined Cells (P3) 19-Nov-08 < 0.01 < 0.01 < 0.02 < 0.02 < 0.01 < 0.01 < 0.02 < 0.02 < 0.01 < 0.02 < 0.02 < 0.02 < 0.01 < 0.01 < 0.02 < 0.05 < 0.01 < 0.01 < Apr-09 < < < < < < < < < < < < < < 0.01 < < < Oct-09 < < < < < < < < < < < < < 0.01 < < Apr-10 < 0.01 < 0.01 < 0.02 < 0.02 < 0.01 < 0.01 < 0.02 < 0.02 < 0.01 < 0.02 < < 0.01 < 0.01 < 0.02 < 0.05 < < ,2-Dichloropropane mg/l 1,3,5-Trimethylbenzene mg/l 1,3-Dichlorobenzene (m) mg/l 1,4-Dichlorobenzene (p) mg/l Benzene mg/l Bromodichloromethane mg/l Bromoform mg/l Bromomethane mg/l Carbon Tetrachloride mg/l Chlorobenzene mg/l Chlorodibromomethane mg/l Chloroethane mg/l Chloroform mg/l Chloromethane mg/l Cis-1,2-Dichloroethene mg/l Cis-1,3-Dichloropropene mg/l Ethylbenzene mg/l Ethylene Dibromide mg/l m+p-xylene mg/l Location Sample Date PW8 23-May < < < < < < < < < < < < < < < PW8 19-Nov < < < < < < < < < < < < < < < PW8 30-Apr < < < < < < < < < < < < < < < < PW8 28-Oct < < < < < < < < < < < < < < < < < PW8 29-Apr < < < < < < < < < < < < < < < Leachate from 30-May < < < < < < < < < < < < < < Lined Cells (P3) 19-Nov-08 < 0.02 < 0.01 < 0.05 < 0.01 < 0.02 < 0.05 < 0.01 < 0.02 < 0.01 < 0.01 < 0.02 < < 0.01 < 0.02 < 0.01 < 0.02 < Apr-09 < < < 0.01 < < < < < < < < < < < Oct-09 < < < < < < < < < < < < Apr-10 < 0.02 < 0.01 < 0.05 < 0.01 < 0.02 < < < 0.02 < < 0.01 < 0.02 < 0.01 < 0.02 < 0.02 Methylene Chloride mg/l o-xylene mg/l Styrene mg/l Tetrachloroethylene mg/l Toluene mg/l Trans-1,2-dichloroethene mg/l Trans-1,3-dichloropropene mg/l Trichloroethene mg/l Trichlorofluoromethane mg/l Vinyl Chloride mg/l Page 2 of 2

41 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date P79 17-May < < < < < 0.1 < P79 8-May < < < < 0.1 < P79 14-May < < < < < 0.1 < P79 21-May < < < < 0.1 < P79 27-Apr < < < < < 0.1 < P79 3-May < < < 0.1 < P79 28-Apr < < < < 0.1 < P79 26-Apr < < < < 0.1 < P79 26-May < < < < 0.1 < < 7 P79 29-Apr < < < < 0.1 < P79 28-Apr < < < < 0.1 < P May < < < < < 0.1 < P May < < < < < 0.1 < P May < 0.05 < < < < 0.1 < P May < 0.05 < < < < < 0.1 < P Apr < < < < < 0.1 < P May < < < < 0.1 < P Apr < < < < 0.1 < P Apr < < < < P May < < < < < < 0.1 < < 4 P Apr < < < < < 0.1 < < 7 P Apr < < < < < 0.1 < < 4 W May < < < < < 0.1 < W May < < < < < 0.1 < W May < < < < < 0.1 < W Jun < < < < < 0.1 < W Jun < < < < < 0.1 < W May < < < < 0.1 < W Apr < < < < < 0.1 < W Apr < < < < 0.1 < W44-3 FD 27-Apr < < < < 0.1 < W Apr < < < < 0.1 < W May < < < < < 0.1 < W Nov < < < < 0.1 < < 4 W Apr < < < < < 0.1 < W Oct < < < < < 0.1 < W Apr < < < < < 0.1 < W Nov < < < < < 0.1 < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 1 of 12

42 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date W Nov < < < < 0.1 < W Feb < < < < < W May < 0.01 < 0.05 < < < < < < W Nov < < < < 0.1 < W Feb W May < < < < 0.1 < W Nov < < < < 0.1 < W Apr < < < < < W Nov < < < < 0.1 < W48-2 FD 28-Nov < < < < 0.1 < W Apr < < < W Nov < < < < 0.1 < W Apr < < < < 0.1 < W Nov < < < < 0.1 < W May < < < < W Nov < < < < < 0.1 < W Apr < < < < W Oct < < < < < W Apr < < < < < 0.1 < W Jul < < < < < 0.1 < W Nov < < < < < 0.1 < W Dec < < 5 97 < < < < 0.1 < W Jan < < < < 0.1 < W May < < < < 0.1 < W Feb < < < 5 78 < < < < 0.1 < W May < < < < < 0.1 < W Nov < < < < < 0.1 < W Feb < < < < < 0.1 < W May < < 5 70 < < < < 0.1 < W Nov < < < < 0.1 < W Apr < < 5 96 < < < < 0.1 < W Nov < < < < < 0.1 < W Apr < < < < < 0.1 < W Nov < < < < < 0.1 < W Apr < < < < < 0.1 < W Nov < < < < 0.1 < W Apr < < < < < 0.1 < W Oct < < < < < < 0.1 < < 1 W Apr < < < < 0.1 < < 0.7 W Nov < < < < < 0.1 < < 0.7 W53-1 Dup 2-Nov < < < < < 0.1 < < 0.7 Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 2 of 12

43 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date W Dec < 0.05 < < < < < < < W Jan < < 0.05 < < < < < < < W May < 0.05 < < < < W Feb < 0.01 < 0.05 < < 5 64 < < 0.01 < < W May < < 0.05 < < 5 89 < < < 0.01 < < < W Nov < < 5 62 < < < 0.01 < < < W Feb W May < 0.05 < < < < 0.01 < < W Nov < < < 0.01 < < W Apr < < < < 0.01 < < < W Nov < < 5 65 < < < 0.03 < < < W Apr < < < < 0.03 < < < W Nov < < < 0.03 < < < W Apr < < < 0.03 < < < W Nov < < < 0.03 < < < W Apr < < < < < 0.1 < < < 0.7 W Oct < < < < < < 0.1 < < < 0.7 W Apr < < < < 0.1 < < < < 0.7 W Nov < < < < 0.1 < < < 0.7 W Dec < < < < 0.01 < < W Jan < < < 0.01 < < W54-2 FD 17-Jan < < < 0.01 < < W May < < < < 0.01 < < < W Feb < < < < 0.01 < < < W May < < < < < < W Nov < < < < < W Feb W May < < < < < 0.1 < W Nov < < < < W Apr < < < < < 0.01 < < W Nov < < < 0.03 < < W Apr < < < < 0.03 < < 0.1 < W Nov < < < < W54-2 FD 8-Nov < < < < W Apr < < < 0.03 < < W Nov < < < < W Apr < < < < < 0.1 < < < 0.7 W Oct < < < < < 0.1 < < < 0.7 W Apr < < < < < 0.1 < < < 0.7 W Nov < < < < < 0.1 < < < 0.7 Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 3 of 12

44 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date W Dec < < < < < 0.1 < W Jan < 0.05 < < < < 0.1 < W May < 0.05 < < < < < 0.1 < W Feb < 0.01 < 0.05 < < < 0.01 < < < 0.1 < W May < 0.05 < < < < < 0.1 < W Nov < 0.05 < < < < < 0.1 < W Feb W May < 0.05 < < < < 0.1 < W56-2 FD 3-May < 0.05 < < < < 0.1 < W Nov < < < < 0.1 < W Apr < < < < < 0.1 < W May < < < < < 0.1 < W Nov < < < < 0.1 < W Apr < < < < 0.1 < W Nov < < < 0.1 < W Apr < < < < W56-2 FD 26-Apr < < < W Nov < < < < 0.1 < W May < < < < < W Nov < < < < 0.1 < < 4 W Apr < < < < < W Oct < < < < < 7 W Apr < < < < < 0.1 < W Jul < < < < < 0.1 < W Nov < < < < < 0.1 < W Feb W May < 0.01 < < 5 19 < < < < < W May < < 0.02 < < < 0.1 < < 0.1 < < 10 W Apr < < 0.02 < < < 0.1 < < < 7 W57-2 FD 29-Apr < < 0.01 < < < < 0.1 < < < < 0.7 W Apr < < 0.02 < < < 0.1 < < 0.1 < < 7 W Feb W May < 0.01 < < < < < 0.1 < W May < < < < 0.1 < < < 0.1 < < 4 W Apr < < < < 0.1 < < < 0.1 < < 0.7 W Apr < < < < 0.1 < < < 0.1 < < 1 W61 24-Feb W61 6-May < 0.01 < < 5 12 < < < < 0.1 < W61 26-May < < 0.02 < < < < 0.1 < < 4 W61 29-Apr < < 0.02 < < 4 17 < < < < 0.1 < < 0.7 W61 28-Apr < < 0.02 < < < < 0.1 < < 10 W Feb W May < < < < 0.1 < 0.1 < W May < < 0.02 < < < < 0.1 < < 4 W Apr < < < 0.1 < < 4 W Apr < 0.02 < < < < 0.1 < < 10 W62-2 Dup 28-Apr < 0.02 < < < < 0.1 < < 10 Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 4 of 12

45 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date W63 24-Feb W63 7-May < < < < 0.1 < W63 26-May < < < < < 0.1 < W63 29-Apr < < < < < 0.1 < W63 29-Apr < < < < < 0.1 < W64 25-Feb W64 5-May < < < < 0.1 < W64 26-May < < < < < W64 FD 26-May < < < < < 0.1 < W64 29-Apr < < < < 0.1 < W64 28-Apr < < < < 7 W64 15-Jul < < < W64 3-Nov < < < < 0.1 < W64 Dup 3-Nov < < < < 0.1 < W Feb W Apr < < < < 0.01 < < 0.01 < 0.1 < W May < < < 5 40 < < < 0.01 < < < W May < < < < 0.1 < < < 1 W Apr < < < < < 1 W Apr < < < < 0.1 < < < < 4 W70 25-Feb W70 7-May < < 5 52 < < < < < 0.01 < 0.1 < W70 21-May < < 0.02 < < < < 0.1 < < 0.1 < < 4 W70 28-Apr < < 0.02 < < < < 0.1 < < < < 4 W70 29-Apr < < 0.02 < < < 0.1 < < < < 4 W72 25-Feb W72 23-May < < < < 0.1 < < W72 19-Nov < < < < < 0.1 < < < < 0.7 W72 29-Apr < < < < < 0.1 < < W72 28-Oct < < < < < 0.1 < < 0.1 < < 0.7 W72 28-Apr < < < < < 0.1 < W72 2-Nov < < < < < 0.1 < < W Apr < < < < 0.1 < W Apr < < < < 0.1 < W May < 0.02 < < < < < 7 W Apr < < 0.02 < < < < < 4 W Apr < < 0.02 < < < < < 7 W79 23-May < < < < < 0.1 < W79 FD 23-May < < < < < 0.1 < W79 19-Nov < < < < 0.1 < W79 29-Apr < < < < < 0.1 < W79 FD 29-Apr < < < < 0.1 < < 0.1 < W79 28-Oct < < < < < 0.1 < W79 28-Apr < < < < < 0.1 < W79 15-Jul < < < 0.1 < W79 2-Nov < < < < < 0.1 < W79 3-Feb < < < < < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 5 of 12

46 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date W80 23-May < < < W80 19-Nov < < < 0.1 < W80 29-Apr < < < W80 28-Oct < < < W80 28-Apr < < < < W80 2-Nov < < < < W81 23-May < < < < W81 19-Nov < < < < 0.1 < < < 1 W81 29-Apr < < < < W81 28-Oct < < < < < W81 28-Apr < < < < 0.1 < < < 4 W81 Dup 28-Apr < < < < < 0.1 < < < < 1 W81 2-Nov < < < < WS2 14-Nov < < < 0.03 < < WS2 15-Feb < < < 0.03 < < WS2 FD 15-Feb < < < < WS2 24-Apr < < < < WS2 16-Aug < < < < 0.1 < WS2 FD 16-Aug < < < < 0.1 < WS2 30-Nov < < < 0.03 < < 0.1 < WS2 21-Feb < < < < WS2 20-Nov < < < < 0.1 < < < 0.7 WS2 30-Apr < < < < < < 0.7 WS2 28-Oct < < < < < WS2 FD 28-Oct < < < < < WS2 28-Apr < < < < < WS2 2-Nov < < < < < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 6 of 12

47 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date PW1 16-May PW1 FD 16-May < < < < < PW1 22-Nov < < < < < 0.1 < PW1 9-May < < < < 0.1 < PW1 FD 9-May < < < < < 0.1 < PW1 6-Dec < < < < < 0.1 < PW1 30-Aug < < < < < < 0.1 < PW1 7-Nov < < < < 0.1 < PW1 22-May < < < < < 0.1 < PW1 4-Nov < < < < < 0.1 < PW1 4-May < < < < 0.1 < PW1 5-Nov < < < < 0.1 < PW1 4-May < < < < < 0.1 < PW1 24-Nov < < < < 0.1 < PW1 FD 24-Nov < < < < 0.1 < PW1 28-Apr < < < < 0.1 < PW1 7-Nov < < < < 0.1 < PW1 24-Apr < < < < PW1 29-Nov < < < < 0.1 < PW1 22-May < < < < PW1 19-Nov < < < 0.1 < PW1 30-Apr < < < < < 0.1 < PW1 28-Oct < < < < < 0.1 < PW1 29-Apr < < < < PW1 2-Nov < < < < PW2 22-Nov < < < < < < 0.1 < PW2 9-May < < < < < 0.1 < PW2 6-Dec < < < < < 0.1 < PW2 18-Dec < < < < < 0.1 < PW2 29-May < < < < < 0.1 < PW2 7-Nov < < < < 0.1 < PW2 22-May < < < < < 0.1 < PW2 4-Nov < < < < < 0.1 < PW2 4-May < < < < PW2 5-Nov < < < < 0.1 < PW2 4-May < < < < 0.1 < PW2 24-Nov < < < < < 0.1 < PW2 28-Apr < < < < 0.1 < PW2 7-Nov < < < < 0.1 < PW2 FD 7-Nov < < < < 0.1 < PW2 24-Apr < < < < < PW2 29-Nov < < < 0.1 < PW2 22-May < < < < 0.1 < PW2 19-Nov < < < 0.1 < PW2 30-Apr < < < < PW2 29-Apr < < < < PW2R1 2-Nov < < < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 7 of 12

48 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date PW3 9-May < < < < < 0.1 < PW3 6-Dec < < < < < 0.1 < PW3 29-May < < < < < 0.1 < PW3 7-Nov < < < < 0.1 < PW3 22-May < < < < < 0.1 < PW3 4-Nov < < < < < 0.1 < PW3 4-May < < < < 0.1 < PW3 FD 4-May < < < < < 0.1 < PW3 5-Nov < < < < 0.1 < PW3 4-May < < < < 0.1 < PW3 24-Nov < < < < < 0.1 < PW3 28-Apr < < < < < 0.1 < PW3 7-Nov < < < < 0.1 < PW3 24-Apr < < < < < PW3 29-Nov < < < < < 0.1 < PW3 22-May < < < < < 0.1 < PW3 19-Nov < < < < < 0.1 < PW3 30-Apr < < < < < 0.1 < PW3 28-Oct < < < < < 0.1 < PW3 29-Apr < < < < < 0.1 < PW3 Dup 29-Apr < < < < 0.1 < PW3 2-Nov < < < < < 0.1 < PW4 6-Dec < < < < < 0.1 < PW4 29-May < < < < < 0.1 < PW4 7-Nov < < < < 0.1 < PW4 22-May < < < < < 0.1 < PW4 4-Nov < < < < < 0.1 < PW4 4-May < < < < < 0.1 < PW4 5-Nov < < < < 0.1 < PW4 FD 5-Nov < < < < 0.1 < PW4 27-Apr < < < < < PW4 4-May < < < 0.5 < PW4 FD 4-May < < < 0.1 < PW4 13-Jul < < < < 0.1 < PW4 FD 13-Jul < < < < 0.1 < PW4 24-Nov < < < < < 0.1 < PW4 28-Apr < < < < 0.1 < PW4 7-Nov < < < < 0.1 < PW4 24-Apr < < < < PW4 FD 24-Apr < < < < < PW4 29-Nov < < < < 0.1 < PW4 22-May < < < < < 0.1 < PW4 FD 22-May < < < < < 0.1 < PW4 19-Nov < < < < < 0.1 < PW4 FD 19-Nov < < < < < 0.1 < PW4 30-Apr < < < < 0.1 < PW4 28-Oct < < < < < 0.1 < PW4 29-Apr < < < < < 0.1 < PW4 2-Nov < < < 0.1 < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 8 of 12

49 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date PW5 23-Nov < < < < < 0.1 < PW5 9-May < < < < < 0.1 < PW5 6-Dec < < < < < 0.1 < PW5 29-May < < < < < 0.1 < PW5 7-Nov < < < < 0.1 < PW5 22-May < < < < < 0.1 < PW5 4-Nov < < < < < 0.1 < PW5 4-May < < < < 0.1 < PW5 5-Nov < < < < 0.1 < PW5 4-May < < < < 0.1 < PW5 24-Nov < < < < < 0.1 < PW5 28-Apr < < < < < 0.1 < PW5 7-Nov < < < < 0.1 < PW5 24-Apr < < < < < PW5 29-Nov < < < < 0.1 < PW5 22-May < < < < < 0.1 < PW5 19-Nov < < < < 0.1 < PW5 30-Apr < < < < < 0.1 < PW5 28-Oct < < < < < 0.1 < PW5 29-Apr < < < < 0.1 < PW5 2-Nov < < < < < 0.1 < PW6 16-May < < < < < 0.1 < PW6 22-Nov < < < < < 0.1 < PW6 9-May < < < < < 0.1 < PW6 6-Dec < < < < < 0.1 < PW6 29-May < < < < < 0.1 < PW6 7-Nov < < < < 0.1 < PW6 22-May < < < < < 0.1 < PW6 4-Nov < < < < < 0.1 < PW6 4-May < < < < 0.1 < PW6 5-Nov < < < < 0.1 < PW6 4-May < < < < 0.1 < PW6 24-Nov < < < < < 0.1 < PW6 28-Apr < < < < 0.1 < PW6 7-Nov < < < < 0.1 < PW6 24-Apr < < < < < PW6 29-Nov < < < 0.1 < PW6 22-May < < < < 0.1 < PW6 19-Nov < < < < 0.1 < PW6 30-Apr < < < < < 0.1 < PW6 28-Oct < < < < < 0.1 < PW6 FD 28-Oct < < < < < 0.1 < PW6 29-Apr < < < < 0.1 < PW6R1 2-Nov < < < < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 9 of 12

50 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date PW7 16-May < < < < < 0.1 < PW7 22-Nov < < < < < 0.1 < PW7 9-May < < < < < 0.1 < PW7 6-Dec < < < < < 0.1 < PW7 29-May < < < < 0.1 < PW7 7-Nov < < < < 0.1 < PW7 22-May < < < < < 0.1 < PW7 28-Nov < < < < < 0.1 < PW7 4-May < < < < < 0.1 < PW7 5-Nov < < < < 0.1 < PW7 4-May < < < < 0.1 < PW7 13-Jul < < < < 0.1 < PW7 24-Nov < < < < < 0.1 < PW7 28-Apr < < < < < 0.1 < PW7 7-Nov < < < < 0.1 < PW7 24-Apr < < < < < 0.1 < PW7 29-Nov < < < < < 0.1 < PW7 22-May < < < < 0.1 < PW7 19-Nov < < < < 0.1 < PW7 30-Apr < < < < 0.1 < PW7 28-Oct < < < < 0.1 < PW7 29-Apr < < < < 0.1 < PW7 2-Nov < < < < < 0.1 < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 10 of 12

51 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date PW9 16-May < < < < < PW9 22-Nov < < < < < 0.1 < PW9 10-May < < < < 0.1 < PW9 6-Dec < < < < < 0.1 < PW9 29-May < < < < < PW9 7-Nov < < < < 0.1 < PW9 22-May < < < < < PW9 4-Nov < < < < < 0.1 < PW9 4-May < < < < < PW9 5-Nov < < < < PW9 4-May < < < < 0.1 < PW9 13-Jul < < < < PW9 24-Nov < < < < 0.1 < PW9 28-Apr < < < < PW9 7-Nov < < < < PW9 24-Apr < < < < 0.1 < PW9 29-Nov < < < < PW9 FD 29-Nov < < < < PW9 22-May < < < < PW9 19-Nov < < < < PW9 30-Apr < < < < PW9 28-Oct < < < < < 0.1 < PW9 29-Apr < < < < < PW9 2-Nov < < < < PW9 Dup 2-Nov < < < < PW10 22-Nov < < < < < 0.1 < PW10 10-May < < < < < 0.1 < PW10 6-Dec < < < < PW10 29-May < < < < < PW10 7-Nov < < < < 0.1 < PW10 22-May < < < < < PW10 4-Nov < < < < < 0.1 < PW10 4-May < < < < < PW10 17-Nov < < < < 0.1 < PW10 4-May < < < 0.1 < 0.5 < PW10 13-Jul < < < < 0.1 < PW10 24-Nov < < < < 0.1 < PW10 28-Apr < < < PW10 7-Nov < < < < 0.1 < PW10 24-Apr < < < < 0.1 < PW10 29-Nov < < < PW10 22-May < < < < PW10 19-Nov < < < 0.1 < PW10 30-Apr < < < < < PW10 28-Oct < < < < < 0.1 < PW10 29-Apr < < < < < 0.1 < PW10 2-Nov < < < < < 0.1 < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 11 of 12

52 TABLE 6: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Location Sample Date PW20 16-May < < < < 0.1 < PW20 10-May < < < < < 0.1 < PW20 6-Dec < < < < < 0.1 < PW20 29-May < < < < < 0.1 < PW20 7-Nov < < < < 0.1 < PW20 22-May < < < < < 0.1 < PW20 4-Nov < < < < < 0.1 < PW20 4-May < < < < < 0.1 < PW20 5-Nov < < < < 0.1 < PW20 4-May < < 0.1 < PW20 13-Jul < < < < 0.1 < PW20 24-Nov < < < < 0.1 < PW20 28-Apr < < < < < 0.1 < PW20 8-Nov < < < < 0.1 < PW20 24-Apr < < < < < 0.1 < PW20 29-Nov < < < < 0.1 < PW20 22-May < < < < < 0.1 < PW20 19-Nov < < < < < 0.1 < PW20 30-Apr < < < < < 0.1 < PW20 28-Oct < < < < < 0.1 < PW20 29-Apr < < < < 0.1 < PW20 2-Nov < < < < < 0.1 < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 12 of 12

53 TABLE 7: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (VOCs) Waste Management Ottawa Landfill CB2533 Tables 2010.xls 1,1,1,2-Tetrachloroethane mg/l 1,1,1-Trichloroethane mg/l 1,1,2,2-Tetrachloroethane mg/l 1,1,2-Trichloroethane mg/l 1,1-Dichloroethane mg/l 1,1-Dichloroethene mg/l 1,2-Dichlorobenzene (o) mg/l 1,2-Dichloroethane mg/l Location Sample Date W May-08 < < < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < < < < W Apr-10 < < < < < < < < < < < < < < < < < < W May-03 < < < < < < < < < < < < < < < < < < W May-04 < < < < < < < < < < < < < < < < < < < W Apr-05 < < < < < < < < < < < < < < < < < < < W Apr-06 < < < < < < < < < < < < < < < < < < W Apr-07 < < < < < < < < < < < < < < < < < < < W May-08 < < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < < < W Apr-10 < < < < < < < < < < < < < < < < < W Dec-01 < < < < < < < < < < < < < < < < < < < W Jan-02 < < < < < < < < < < < < < < < < < < < W May-02 < < < < < < < < < < < < < < < < < < < W May-03 < < < < < < < < < < < < < < < < < < W May-04 < < < < < < < < < < < < < < < < < < < W Apr-05 < < < < < < < < < < < < < < < < < < < W Apr-06 < < < < < < < < < < < < < < < < < < W Apr-07 < < < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < < < W Apr-10 < < < < < < < < < < < < < < < < < W Dec-01 < < < < < < < < < < < < < < < < < < W Jan-02 < < < < < < < < < < < < < < < < < < < W May-02 < < < < < < < < < < < < < < < < < < < W May-03 < < < < < < < < < < < < < < < < < < < W May-04 < < < < < < < < < < < < < < < < < < < W Apr-05 < < < < < < < < < < < < < < < < < < < W Apr-06 < < < < < < < < < < < < < < < < < < < W Apr-07 < < < < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < < < < < ,2-Dichloropropane mg/l 1,3,5-Trimethylbenzene mg/l 1,3-Dichlorobenzene (m) mg/l 1,4-Dichlorobenzene (p) mg/l Benzene mg/l Bromodichloromethane mg/l Bromoform mg/l Bromomethane mg/l Carbon Tetrachloride mg/l Chlorobenzene mg/l Chlorodibromomethane mg/l Page 1 of 6

54 TABLE 7: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (VOCs) Waste Management Ottawa Landfill CB2533 Tables 2010.xls 1,1,1,2-Tetrachloroethane mg/l 1,1,1-Trichloroethane mg/l 1,1,2,2-Tetrachloroethane mg/l 1,1,2-Trichloroethane mg/l 1,1-Dichloroethane mg/l 1,1-Dichloroethene mg/l 1,2-Dichlorobenzene (o) mg/l 1,2-Dichloroethane mg/l Location Sample Date W Apr-10 < < < < < < < < < < < < < < < < < < W Dec-01 < < < < < < < < < < < < < < < < < < < W Jan-02 < < < < < < < < < < < < < < < < < < W54-2 FD 17-Jan-02 < < < < < < < < < < < < < < < < < < W May-03 < < < < < < < < < < < < < < < < < < < W May-04 < < < < < < < < < < < < < < < < < < < W Apr-05 < < < < < < < < < < < < < < < < < < < W Apr-06 < < < < < < < < < < < < < < < < < < < W Apr-07 < < < < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < < < < W Apr-10 < < < < < < < < < < < < < < < < < < W Dec-01 < < < < < < < < < < < < < < < < < < < W Jan-02 < < < < < < < < < < < < < < < < < < < W May-03 < < < < < < < < < < < < < < < < < < < W May-04 < < < < < < < < < < < < < < < < < < < W56-2 FD 03-May-04 < < < < < < < < < < < < < < < < < < < W Apr-05 < < < < < < < < < < < < < < < < < < < W Apr-06 < < < < < < < < < < < < < < < < < < < W Apr-07 < < < < < < < < < < < < < < < < < < < W56-2 FD 26-Apr-07 < < < < < < < < < < < < < < < < < < < W May-08 < < < < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < < < < < W Apr-10 < < < < < < < < < < < < < < < < < < < W72 23-May-08 < < < < < < < < < < < < < < < < < < < W72 29-Apr-09 < < < < < < < < < < < < < < < < < < W72 28-Apr-10 < < < < < < < < < < < < < < < < < < W79 23-May-08 < < < < < < < < < < < < < < < < < < W79 FD 23-May-08 < < < < < < < < < < < < < < < < < < W79 29-Apr-09 < < < < < < < < < < < < < < < < < < W79 FD 29-Apr-09 < < < < < < < < < < < < < < < < < < W79 28-Apr-10 < < < < < < < < < < < < < < < < < < W80 23-May-08 < < < < < < < < < < < < < < < W80 29-Apr-09 < < < < < < < < < < < < < < < W80 28-Apr-10 < < < < < < < < < < < < < < < W81 23-May-08 < < < < < < < < < < < < < < < < < < W81 29-Apr-09 < < < < < < < < < < < < < < < < ,2-Dichloropropane mg/l 1,3,5-Trimethylbenzene mg/l 1,3-Dichlorobenzene (m) mg/l 1,4-Dichlorobenzene (p) mg/l Benzene mg/l Bromodichloromethane mg/l Bromoform mg/l Bromomethane mg/l Carbon Tetrachloride mg/l Chlorobenzene mg/l Chlorodibromomethane mg/l Page 2 of 6

55 TABLE 7: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (VOCs) Waste Management Ottawa Landfill CB2533 Tables 2010.xls 1,1,1,2-Tetrachloroethane mg/l 1,1,1-Trichloroethane mg/l 1,1,2,2-Tetrachloroethane mg/l 1,1,2-Trichloroethane mg/l 1,1-Dichloroethane mg/l 1,1-Dichloroethene mg/l 1,2-Dichlorobenzene (o) mg/l 1,2-Dichloroethane mg/l Location Sample Date W81 28-Apr-10 < < < < < < < < < < < < < < < < < < < Duplicate 28-Apr-10 < < < < < < < < < < < < < < < < < < < WS2 14-Nov-06 < < < < < < < < < < < < < < < < < < WS2 24-Apr-07 < < < < < < < < < < < < < < < < < < WS2 20-Nov-08 < < < < < < < < < < < < < < < < WS2 30-Apr-09 < < < < < < < < < < < < < < < < < < WS2 28-Oct-09 < < < < < < < < < < < < < < < < < WS2 28-Apr-10 < < < < < < < < < < < < < < < < < ,2-Dichloropropane mg/l 1,3,5-Trimethylbenzene mg/l 1,3-Dichlorobenzene (m) mg/l 1,4-Dichlorobenzene (p) mg/l Benzene mg/l Bromodichloromethane mg/l Bromoform mg/l Bromomethane mg/l Carbon Tetrachloride mg/l Chlorobenzene mg/l Chlorodibromomethane mg/l Page 3 of 6

56 TABLE 7: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (VOCs) Waste Management Ottawa Landfill Chloroethane mg/l Chloroform mg/l Chloromethane mg/l Cis-1,2-Dichloroethene mg/l Cis-1,3-Dichloropropene mg/l Ethylbenzene mg/l Ethylene Dibromide mg/l m+p-xylene mg/l CB2533 Tables 2010.xlsx Location Sample Date W May-08 < < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < < < W Apr-10 < < < < < < < < < < < < < < < < < W May-03 < < < < < < < < < < < < < < < < < < W May-04 < < < < < < < < < < < < < < < < < < W Apr-05 < < < < < < < < < < < < < < < < < < W Apr-06 < < < < < < < < < < < < < < < < < < W Apr-07 < < < < < < < < < < < < < < < < < < W May-08 < < < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < < < W Apr-10 < < < < < < < < < < < < < < < < < < W Dec-01 < < < < < < < < < < < < < < < < < W Jan-02 < < < < < < < < < < < < < < < < < W May-02 < < < < < < < < < < < < < < < < < W May-03 < < < < < < < < < < < < < < < < < W May-04 < < < < < < < < < < < < < < < < < W Apr-05 < < < < < < < < < < < < < < < < < W Apr-06 < < < < < < < < < < < < < < < W Apr-07 < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < W Apr-10 < < < < < < < < < < < < < < < W Dec-01 < < < < < < < < < < < < < < < W Jan-02 < < < < < < < < < < < < < < < < W May-02 < < < < < < < < < < < < < < < W May-03 < < < < < < < < < < < < < < < < < < W May-04 < < < < < < < < < < < < < < < < < < W Apr-05 < < < < < < < < < < < < < < < < < < W Apr-06 < < < < < < < < < < < < < < < < W Apr-07 < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < Methylene Chloride mg/l o-xylene mg/l Styrene mg/l Tetrachloroethylene mg/l Toluene mg/l Trans-1,2-dichloroethene mg/l Trans-1,3-dichloropropene mg/l Trichloroethene mg/l Trichlorofluoromethane mg/l Vinyl Chloride mg/l Page 4 of 6

57 TABLE 7: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (VOCs) Waste Management Ottawa Landfill Chloroethane mg/l Chloroform mg/l Chloromethane mg/l Cis-1,2-Dichloroethene mg/l Cis-1,3-Dichloropropene mg/l Ethylbenzene mg/l Ethylene Dibromide mg/l m+p-xylene mg/l CB2533 Tables 2010.xlsx Location Sample Date W Apr-10 < < < < < < < < < < < < < < < W Dec-01 < < < < < < < < < < < < < < < < W Jan-02 < < < < < < < < < < < < < < < < W54-2 FD 17-Jan-02 < < < < < < < < < < < < < W May-03 < < < < < < < < < < < < < < < < W May-04 < < < < < < < < < < < < < < < < < W Apr-05 < < < < < < < < < < < < < < < < W Apr-06 < < < < < < < < < < < < < < < < W Apr-07 < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < W Apr-10 < < < < < < < < < < < < < < < < W Dec-01 < < < < < < < < < < < < < < < < < < W Jan-02 < < < < < < < < < < < < < < < < < < W May-03 < < < < < < < < < < < < < < < < < < W May-04 < < < < < < < < < < < < < < < < < < W56-2 FD 03-May-04 < < < < < < < < < < < < < < < < < < W Apr-05 < < < < < < < < < < < < < < < < < < W Apr-06 < < < < < < < < < < < < < < < < < < W Apr-07 < < < < < < < < < < < < < < < < < < W56-2 FD 26-Apr-07 < < < < < < < < < < < < < < < < < < W May-08 < < < < < < < < < < < < < < < < < < W Apr-09 < < < < < < < < < < < < < < < < < W Apr-10 < < < < < < < < < < < < < < < < < < W72 23-May-08 < < < < < < < < < < < < < < < < W72 29-Apr < < < < < < < < < < < < < < W72 28-Apr-10 < < < < < < < < < < < < < < < W79 23-May-08 < < < < < < < < < < < < < < < < W79 FD 23-May-08 < < < < < < < < < < < < < < < W79 29-Apr-09 < < < < < < < < < < < < < < < < W79 FD 29-Apr-09 < < < < < < < < < < < < < < < < W79 28-Apr-10 < < < < < < < < < < < < < < < < < W80 23-May < < < < < < < < < W80 29-Apr < < < < < < < < < < < < < < W80 28-Apr < < < < < < < < < < < < < W81 23-May-08 < < < < < < < < < < < < < < < W81 29-Apr < < < < < < < < < < < < < Methylene Chloride mg/l o-xylene mg/l Styrene mg/l Tetrachloroethylene mg/l Toluene mg/l Trans-1,2-dichloroethene mg/l Trans-1,3-dichloropropene mg/l Trichloroethene mg/l Trichlorofluoromethane mg/l Vinyl Chloride mg/l Page 5 of 6

58 TABLE 7: OVERBURDEN/SHALLOW BEDROCK GROUNDWATER QUALITY (VOCs) Waste Management Ottawa Landfill Chloroethane mg/l Chloroform mg/l Chloromethane mg/l Cis-1,2-Dichloroethene mg/l Cis-1,3-Dichloropropene mg/l Ethylbenzene mg/l Ethylene Dibromide mg/l m+p-xylene mg/l CB2533 Tables 2010.xlsx Location Sample Date W81 28-Apr-10 < < < < < < < < < < < < < < < Duplicate 28-Apr-10 < < < < < < < < < < < < < < < WS2 14-Nov-06 < < < < < < < < < < < < < < WS2 24-Apr-07 < < < < < < < < < < < < < < WS2 20-Nov-08 < < < < < < < < < < < < < < < WS2 30-Apr-09 < < < < < < < < < < < < < < < WS2 28-Oct < < < < < < < < < < < < < WS2 28-Apr < < < < < < < < < < < < < < Methylene Chloride mg/l o-xylene mg/l Styrene mg/l Tetrachloroethylene mg/l Toluene mg/l Trans-1,2-dichloroethene mg/l Trans-1,3-dichloropropene mg/l Trichloroethene mg/l Trichlorofluoromethane mg/l Vinyl Chloride mg/l Page 6 of 6

59 TABLE 8: ASSESSMENT PARAMETER LIMIT EXCEEDANCES IN DESIGNATED GROUNDWATER MONITORS Nitrate mg/l Trichloroethylene mg/l Vinyl chloride mg/l Ammonia mg/l CB2533 Tables 2010.xlsx Location Sample Date RUL Prediction Limit East Boundary On-site W72 28-Apr Nov W80 28-Apr Nov W81 28-Apr < Nov Off-site, North of CAZ W Apr Nov W Apr Nov W Apr Nov WS2 28-Apr Nov MTO Highway 417 Ramp W Apr Jul Nov CAZ Wells W Apr Nov W Apr Jul Nov W79 28-Apr Jul Nov North Boundary W Apr-10 < W64 28-Apr < Jul Nov West Boundary W Apr-10 < Total Kjeldahl Nitrogen mg/l Chemical Oxygen Demand mg/l Potassium mg/l Chloroethane mg/l 1,1-Dichloroethane mg/l cis-1,2-dichloroethene mg/l Notes: VOCs are sampled once annually, as per the approved EMP Reporting limits greater than the prediction limit

60 TABLE 9: SURFACE WATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Un-ionized ammonia (mg/l) Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Sample Location Date S1 01-Jun < < < < < S1 22-Nov < < < < 0.1 < S1 11-May < < < S1 FD 11-May < < < S1 13-Nov < < < 0.1 < S1 15-May < < < < < S1 12-Nov < < < < < S1 22-May < < < < < S1 15-Aug S1 05-Nov < < < < S1 22-Dec S1 11-Feb S1 30-Apr < < < < S1 08-Sep S1 05-Nov < < < S1 27-Apr < < < < < S1 24-Aug S1 28-Nov < < < < S1 FD 28-Nov < < < < S1 26-Apr < < < < < S1 29-Aug S1 07-Nov < < < < S1 24-Apr < < < < S1 16-Aug S1 27-Nov < < < < < S1 23-May < < < < S1 FD 23-May < < < < S1 19-Nov < < < S1 29-Apr < < S1 29-Oct < < < < < S1 FD 29-Oct < < < < < S1 28-Apr < < < < S1 Dup 28-Apr < < < < S1 02-Nov * < < < < < S1 Dup 02-Nov * < < < < Cyanide (free) mg/l Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 1 of 3

61 TABLE 9: SURFACE WATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Un-ionized ammonia (mg/l) Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Sample Location Date S3 01-Jun < < < < S3 22-Nov < < < < < S3 11-May < < < S3 13-Nov < < < < < S3 15-May < < < < < S3 12-Nov < < < < < S3 22-May < < < < < S3 15-Aug S3 05-Nov < < < < S3 22-Dec S3 30-Apr < < < < S3 08-Sep S3 05-Nov < < < < S3 27-Apr < < < < < S3 24-Aug S3 28-Nov < < < < < S3 26-Apr < < < < < S3 29-Aug S3 07-Nov < < < < S3 FD 07-Nov < < < < S3 24-Apr < < < < S3 16-Aug S3 27-Nov < < < < S3 23-May < < < < S3 19-Nov < < < < 7 S3 29-Apr < 0.15 < < < < < 0.7 S3 29-Oct < < < < S3 28-Apr < < < < 0.1 < S3 02-Nov * < < < < Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 2 of 3

62 TABLE 9: SURFACE WATER QUALITY (PIL, SIL) Waste Management Ottawa Landfill CB2533 Tables 2010.xlsx Alkalinity mg/l Ammonia mg/l Un-ionized ammonia (mg/l) Barium mg/l Boron mg/l Cadmium mg/l Calcium mg/l Chemical Oxygen Demand mg/l Chloride mg/l Chromium (total) mg/l Conductivity us/cm Cyanide (free) mg/l Sample Location Date S10 11-May < < < S10 13-Nov < < < < < S10 15-May < < < < < S10 12-Nov < < < < < S10 22-May < < < < < S10 15-Aug <0.001 S10 05-Nov < < < < S10 22-Dec S10 30-Apr < < < < S10 08-Sep S10 05-Nov < < < < S10 27-Apr < < < < < S10 24-Aug S10 28-Nov < < < < < S10 26-Apr < < < < S10 29-Aug S10 07-Nov < < < < < S10 24-Apr < < S10 16-Aug S10 27-Nov < < < < < S10 23-May < < < < S10 19-Nov < < < < < S10 FD 19-Nov < < < < < S10 29-Apr < 0.15 < < < < < 0.7 S10 29-Oct < 0.15 < < < < < 0.7 S10 28-Apr < 0.15 < < < < < < 0.1 < S10 02-Nov * < < < < < * - the calculated values of un-ionized ammonia may be anomalously elevated; due to a ph probe malfunction the lab ph values were used. Cyanide mg/l Dissolved Organic Carbon mg/l Hardness mg/l Iron mg/l Lead mg/l Magnesium mg/l Manganese mg/l Nitrate mg/l Nitrite mg/l ph unitless Potassium mg/l Sodium mg/l Sulphate mg/l Total Dissolved Solids mg/l Total Kjeldahl Nitrogen mg/l Page 3 of 3

63 TABLE 10: SURFACE WATER QUALITY (VOCs) Waste Management Ottawa Landfill 1,1,1,2-Tetrachloroethane mg/l 1,1,1-Trichloroethane mg/l 1,1,2,2-Tetrachloroethane mg/l 1,1,2-Trichloroethane mg/l 1,1-Dichloroethane mg/l 1,1-Dichloroethene mg/l 1,2-Dichlorobenzene (o) mg/l 1,2-Dichloroethane mg/l 1,2-Dichloropropane mg/l Location Sample Date S1 22-May-03 < < < < < < < < < < < < < < < < < < < S1 23-May-03 < < < < < < < < < < < < < < < < < < S1 30-Apr-04 < < < < < < < < < < < < < < < < < < < S1 27-Apr-05 < < < < < < < < < < < < < < < < < < < S1 26-Apr-06 < < < < < < < < < < < < < < < < < < < S1 24-Apr-07 < < < < < < < < < < < < < < < < < < < S1 23-May-08 < < < < < < < < < < < < < < < < < < S1 FD 23-May-08 < < < < < < < < < < < < < < < < < < < S1 29-Apr-09 < < < < < < < < < < < < < < < < < < < S1 28-Apr-10 < < < < < < < < < < < < < < < < < < < S3 22-May-03 < < < < < < < < < < < < < < < < < < < S3 30-Apr-04 < < < < < < < < < < < < < < < < < < < S3 27-Apr-05 < < < < < < < < < < < < < < < < < < < S3 26-Apr-06 < < < < < < < < < < < < < < < < < < < S3 24-Apr-07 < < < < < < < < < < < < < < < < < < < S3 23-May-08 < < < < < < < < < < < < < < < < < < < S3 29-Apr-09 < < < < < < < < < < < < < < < < < < < S3 28-Apr-10 < < < < < < < < < < < < < < < < < < < ,3,5-Trimethylbenzene mg/l 1,3-Dichlorobenzene (m) mg/l 1,4-Dichlorobenzene (p) mg/l Benzene mg/l Bromodichloromethane mg/l Bromoform mg/l Bromomethane mg/l Carbon Tetrachloride mg/l Chlorobenzene mg/l Chlorodibromomethane mg/l Page 1 of 2

64 TABLE 10: SURFACE WATER QUALITY (VOCs) Waste Management Ottawa Landfill Chloroethane mg/l Chloroform mg/l Chloromethane mg/l Cis-1,2-Dichloroethene mg/l Cis-1,3-Dichloropropene mg/l Ethylbenzene mg/l Ethylene Dibromide mg/l m+p-xylene mg/l CB2533 Tables 2010.xlsx Location Sample Date S1 22-May-03 < < < < < < < < < < < < < < < < < S1 23-May-03 < < < < < < < < < < < < < < < < < < S1 30-Apr-04 < < < < < < < < < < < < < < < < < < S1 27-Apr-05 < < < < < < < < < < < < < < < < < < S1 26-Apr-06 < < < < < < < < < < < < < < < < < < S1 24-Apr-07 < < < < < < < < < < < < < < < < < < S1 23-May-08 < < < < < < < < < < < < < < < < < < S1 FD 23-May-08 < < < < < < < < < < < < < < < < < S1 29-Apr-09 < < < < < < < < < < < < < < < < < < S1 28-Apr-10 < < < < < < < < < < < < < < < < < < S3 22-May-03 < < < < < < < < < < < < < < < < < S3 30-Apr-04 < < < < < < < < < < < < < < < < < < S3 27-Apr-05 < < < < < < < < < < < < < < < < < < S3 26-Apr-06 < < < < < < < < < < < < < < < < < < S3 24-Apr-07 < < < < < < < < < < < < < < < < < < S3 23-May-08 < < < < < < < < < < < < < < < < < < S3 29-Apr-09 < < < < < < < < < < < < < < < < < < S3 28-Apr-10 < < < < < < < < < < < < < < < < < < Methylene Chloride mg/l o-xylene mg/l Styrene mg/l Tetrachloroethylene mg/l Toluene mg/l Trans-1,2-dichloroethene mg/l Trans-1,3-dichloropropene mg/l Trichloroethene mg/l Trichlorofluoromethane mg/l Vinyl Chloride mg/l Page 2 of 2

65 TABLE 11: LANDFILL GAS PROBE MONITORING Waste Management Ottawa Landfill Methane Concentrations (%) CB2533 Tables 2010.xlsx Gas Probe GM1 GM2 GM3 GM4 GM5 GM6 GM7 GM8 Depth of Monitor (m) Depth Top of Screen (m) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

66 TABLE 12: SUMMARY OF WEEKLY QUANTITIES OF WASTE RECEIVED January to December 2010 Waste Management, Ottawa Landfill Week ending (Saturday) Waste Disposed at Landfill (tonnes) Special Waste used as Cover (tonnes) 02-Jan Jan Jan Jan Jan Feb Feb Feb Feb Mar Mar Mar Mar Apr Apr Apr Apr May May May May May , Jun , Jun , Jun , Jun , Jul , Jul-10 1, , Jul-10 2, , Jul-10 2, Jul-10 2, Aug-10 2, Aug-10 1, Aug Aug Sep Sep Sep Sep Oct Oct Oct Oct Oct , Nov , Nov Nov , Nov , Dec , Dec , Dec Dec Jan Annual Totals 31, ,890.64

67 CAZ PROPERTY WM OTTAWA LANDFILL CARP ROAD WM PROPERTY BOUNDARY CAZ BOUNDARY N FIGURE: 1 SITE LOCATION MAP WM - OTTAWA LANDFILL SITE MAP REFERENCE: GOOGLE MAPS - JULY 2005 B2533-SLM-10

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84 Water and Earth Science Associates Ltd Carp Road, P.O. Box 430 Carp, Ontario, Canada K0A 1L0 Well ID: PW2R1 Project No.: C-A Northing: Client: Waste Management Ottawa Landfill Easting: Location: 2301 Carp Road, Carp, ON Project Manager: RLC SUBSURFACE PROFILE SAMPLE Depth Symbol Description Elevation Number Type Well Completion Details -4 ft m -2 0 Ground Surface PW2R1 Elev m TOC Silty Sand Gravel Till Brown sandy gravel with stones Cement Grouted 6.625" (16.83mm) Steel Casing Limestone - fracture with water 41' (12.5m) - fracture 44'6"' (13.56m) Drive Shoe Drilled By: Splash Well Drilling Drill Method: Mud Rotary/Air Rotary Drill Date: August 18, 2010 Hole Size: 25.4cm (10")/15.2cm (6") Datum: UTM NAD83 Template: qms-shallow water well supply Sheet: 1 of 2

85 Water and Earth Science Associates Ltd Carp Road, P.O. Box 430 Carp, Ontario, Canada K0A 1L0 Well ID: PW2R1 Project No.: C-A Northing: Client: Waste Management Ottawa Landfill Easting: Location: 2301 Carp Road, Carp, ON Project Manager: RLC SUBSURFACE PROFILE SAMPLE Depth Symbol Description Elevation Number Type Well Completion Details fracture 49'6"' (15.1m) fracture 56'6" (17.22m) fracture 63' (19.20m) fracture 68' (20.73m) - fracture 71' (21.64m) End of Borehole Drilled By: Splash Well Drilling Drill Method: Mud Rotary/Air Rotary Drill Date: August 18, 2010 Hole Size: 25.4cm (10")/15.2cm (6") Datum: UTM NAD83 Template: qms-shallow water well supply Sheet: 2 of 2

86 Water and Earth Science Associates Ltd Carp Road, P.O. Box 430 Carp, Ontario, Canada K0A 1L0 Well ID: PW6R1 Project No.: C-A Northing: Client: Waste Management Ottawa Landfill Easting: Location: 2301 Carp Road, Carp, ON Project Manager: RLC SUBSURFACE PROFILE SAMPLE Depth Symbol Description Elevation Number Type Well Completion Details -4 ft m -2 0 Ground Surface MOE Well Tag No. A PW6R Elev m TOC S/u 0.89 m Silty Sand Waste Brown with some black staining, wet, silty sand with old waste and plastic bags. 20 Cement Grouted Steel Casing Sand Brown, fine to medium grained sand with cobbles and boulders towards the bottom. W/L Elev m Recorded Apr. 14, 2010 Drilled By: Splash Well Drilling Drill Method: Mud Rotary/Air Rotary Drill Date: April 12, 2010 Hole Size: 25.4cm (10")/15.2cm (6") Datum: UTM NAD83 Template: qms-shallow water well supply Sheet: 1 of 2

87 Water and Earth Science Associates Ltd Carp Road, P.O. Box 430 Carp, Ontario, Canada K0A 1L0 Well ID: PW6R1 Project No.: C-A Northing: Client: Waste Management Ottawa Landfill Easting: Location: 2301 Carp Road, Carp, ON Project Manager: RLC SUBSURFACE PROFILE SAMPLE Depth Symbol Description Elevation Number Type Well Completion Details Broken Rock Black, broken limestone rock with coarse sand and gravel Limestone - fracture 48' (14.6m) - fracture with water 49.5' (15.1m) 'K' Packer plus Clay Trap Drive Shoe fracture 64' (19.5m) " Slot 12 Stainless Steel Wrapped Screen small amount of water in fracture 68'(20.7m) fracture 74' (22.6m) - water bearing fracture 79' (24m) End of Borehole Drilled By: Splash Well Drilling Drill Method: Mud Rotary/Air Rotary Drill Date: April 12, 2010 Hole Size: 25.4cm (10")/15.2cm (6") Datum: UTM NAD83 Template: qms-shallow water well supply Sheet: 2 of 2

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