Phase II Environmental Site Assessment (ESA) Update. Bernard Benoit Project Management (BBPM) 2212 Gladwin Crescent, Unit B4 Ottawa, Ontario K1B 5N1

Size: px
Start display at page:

Download "Phase II Environmental Site Assessment (ESA) Update. Bernard Benoit Project Management (BBPM) 2212 Gladwin Crescent, Unit B4 Ottawa, Ontario K1B 5N1"

Transcription

1 Phase II Environmental Site Assessment (ESA) Update 2720 Richmond Road Bernard Benoit Project Management (BBPM) 2212 Gladwin Crescent, Unit B4 K1B 5N1 Centre Multiservices Francophone de l Ouest d Ottawa (CMFO) Richmond Road K2B 6R7 August 2012 Final Report 2150 Thurston Dr., Suite 203 Ottawa, ON KG 5T9 CANADA Phone: Fax:

2 Page i Table of Contents Section 1 Introduction General Background Information DST Consulting Engineers Inc., Site Description Section 2 Environmental Quality Guidelines Section 3 Results Soils Analytical Results Groundwater Analytical Results Section 4 Recommendations Recommendations Section 5 Closure LIST OF APPENDICES Appendix A Summary Tables of Chemical Analysis

3 Page Introduction 1.1 General DST Consulting Engineers Inc. (DST) was retained by Bernard Benoit Project Management Inc. (BBPM, the Client ) on behalf of the Centre Multiservices Francophone de l Ouest d Ottawa (CMFO) to provide an update of a previously completed Phase II Environmental Site Assessment (ESA) associated with the proposed future development of the property located at 2720 Richmond Road (the Site ) in. The purpose of the was to: (1) review previous completed Environmental Site Assessment (ESA) report pertaining to the property; (2) compare previous laboratory data to updated provincial analytical guidelines; and (3) provide recommendations based on the comparison of updated provincial guidelines, and the conclusions of the previous Phase II ESA. This should be read and interpreted in conjunction with the following report: 1. Phase II Environmental Site Assessment, 2720 Richmond Road,. DST Consulting Engineers Inc., February JOB NO. OE-OT Background Information Key findings of the above referenced report are as follows: DST Consulting Engineers Inc., 2008 A total of four (4) boreholes (BHMW1 to BHMW4) were advanced by DST between February 4 and 6, Three (3) of the boreholes were advanced to a depth of approximately 10 metres below surface grade (mbsg) through overburden soils (fill over sandy silt and silty clay). The fourth borehole was advanced until the inferred depth of bedrock ( 11.2 m) and followed by bedrock coring of approximately 4.0 m (total depth of 15.2 mbsg). instrumented with monitoring wells; All boreholes were A total of ten (10) soil samples were submitted for laboratory analysis for metals, petroleum hydrocarbons (PHC) F1-F4, benzene, toluene, ethylbenzene and xylenes (BTEX) and polycyclic aromatic hydrocarbons (PAHs) from BHMW1 to BHMW4; In addition, two (2) concrete samples (Conc A and Conc B) were collected from the basement of the building, an enclosure surrounding an aboveground storage tank (AST). Both concrete samples were submitted for laboratory analysis of PAHs and Conc B was also submitted for PHCs F2-F4 analysis; All soil (and concrete) analytical results met the Ministry of the Environment (MOE) standards outlined in the MOE document entitled Soil, Groundwater and Sediments for Use Under Part

4 Page 1-2 XV.1 of the Environmental Protection Act., March The Site Condition Standards (2004) Full Depth Generic Conditions in a Non-Potable Groundwater Condition for Residential/Parkland/Institutional Property Use; Seven (7) groundwater samples including two (2) QA/QC blind duplicates (DUP and D UP 2) were obtained from on-site monitoring wells (BHMW1/RM BHMW1, BHMW2/RM BHMW2, BHMW3, BHMW4/RM BHMW4) between February 7 and 19, 2008; The groundwater samples were submitted to the laboratory for chemical analysis of PHC F1- F4/ BTEX (BHMW1, DUP, RM BHMW2, BHMW3 and RM BHMW4), PAHs (BHMW1 and RM BHMW2) and metals (RM BHMW1, DUP 2, RM BHMW2, BHMW3 and RM BHMW4); All groundwater samples met the MOE Criteria (March 2004) for all property uses in a non-potable groundwater condition; and, Based on the results of the Phase II ESA, no further work is required, since soil and groundwater concentrations were below provincial standards for residential/parkland/commercial/industrial land uses. 1.3 Site Description The Site is located on the south-east side of Richmond Road between Carling Avenue and Pinecrest Road in. The legal description of the Site is: Part of Lot 21, Concession 2, Ottawa Front, as in NP64442 and Lots 488 and 489 on Plan 348, save and except Part 22 on Plan 4R-346, City of Ottawa PIN The Site is approximately trapezoidal-shaped, 2.31 ha in area, with a frontage of m along Richmond Road and a maximum depth of approximately 203 m along its east side property boundary (Ref. Property Information obtained from City of Ottawa e-map). Vehicular access to the Site is via a U-shaped asphalt driveway from Richmond Road. Major Site features include a three-storey building (main building) and a one-storey slab-on-grade building (annex building). The immediate areas surrounding the buildings are covered by asphalt pavement followed by green spaces. The subject area is fully serviced with sewer, hydro, water and gas utilities. Groundwater is not used as a drinking water source at the Site or surrounding area.

5 Page Environmental Quality Guidelines Soil and groundwater analytical results were compared with the applicable provincial standards, as set out in the following documents: Soil: Groundwater: Ontario Ministry of the Environment (MOE) Soil, Groundwater and Sediment Standards for Use under Part XV.1 of the Environmental Protection Act, March 2004, : Full Depth Generic Site Condition Standards (SCS) for soil in a Non -Potable Groundwater Condition, Residential/ Parkland/ Institutional Property Use, Coarse Textured Soil; and, Ontario Ministry of the Environment (MOE) Soil, Groundwater and Sediment Standards for Use under Part XV.1 of the Environmental Protection Act, April 2011, : Full Depth Generic Site Condition Standards (SCS) for soil in a Non -Potable Groundwater Condition, Residential/ Parkland/ Institutional Property Use, Coarse Textured Soil. Ontario Ministry of the Environment (MOE) Soil, Groundwater and Sediment Standards for Use under Part XV.1 of the Environmental Protection Act, March 2004, : Full Depth Generic Site Condition Standards (SCS) for soil in a Non -Potable Groundwater Condition, Residential/ Parkland/ Institutional Property Use, Coarse Textured Soil; and, Ontario Ministry of the Environment (MOE) Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act", April 2011, : Full Depth Generic Site Condition Standards (SCS) for groundwater in a Non -Potable Groundwater Condition. All Types of Property Use, Coarse Textured Soil.

6 Page Results 3.1 Soil Analytical Results Detailed analytical results and comparison to applicable provincial criteria are presented in Table 1 through 6, Appendix A. All soil samples submitted for laboratory analyses of PHCs, metals and PAHs were below the applicable 2004 and 2011 MOE guideline criteria. 3.2 Groundwater Analytical Results All groundwater samples submitted for laboratory analyses of PHCs, metals and PAHs were below the applicable 2004 MOE guideline criteria. Petroleum Hydrocarbons (PHCs) Groundwater sample BHMW3 reported an exceedance above 2011 MOE guideline criteria for PHCs F3. A concentration of 700 µg/l was reported, which is in excess of the MOE guideline criteria of 500 µg/l. All remaining groundwater analytical results submitted to laboratory analysis for PHCs, metals and PAHs were below the applicable 2011 MOE guideline criteria.

7 Page Recommendations 4.1 Recommendations Based on the findings of the, DST recommends that the groundwater be resampled from BHMW3 to determine whether or not PHCs persist in groundwater in level exceeding current applicable criteria. DST is currently in the process re-sampling of the groundwater from BHMW3. Upon receipt of the laboratory results, DST will provide a letter report stating the findings and conclusions.

8 Page Closure We trust the information herein meets your expectations. Should you have any questions, please do not hesitate to contact the undersigned. Yours truly, DST Consulting Engineers Inc. Eric Sly, B.E.S. Project Manager Paul Hubley, P.Geo. Senior Technical Advisor

9 APPENDIX A SUMMARY TABLES OF CHEMICAL ANALYSIS

10 2720 Richmond Road TABLE 1 - SOIL ANALYTICAL RESULTS - METALS BHMW1 SS BHMW2 SS BHMW3 SS BHMW4 SS Feb-08 4-Feb-08 5-Feb-08 6-Feb-08 Antimony <0.1 <0.1 Arsenic <1 <1 <1 <1 Barium Beryllium <0.2 <0.2 <0.2 <0.2 Boron (Hot Water Extraction) Cadmium <0.5 <0.5 <0.5 <0.5 Chromium (Total) Chromium (VI) 8 8 <0.5 <0.5 <0.5 <0.5 Cobalt Copper Lead <5 <5 <5 <5 Mercury Molybdenum <1 <1 <1 <1 Nickel Selenium <0.1 < Silver <0.2 <0.2 <0.2 <0.2 Thallium <0.2 <0.2 <0.2 <0.2 Vanadium Zinc Notes: Parameter Description mbgs All units in micrograms per gram (μg/g). Analytical Results (Sampling ID/ Depth - mbgs /Sampling Date) - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, March 2004), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. Residential/Parkland/Institutional Property Use, Coarse Textured Soil. < - Less than the Laboratory Detection Limit (value indicated). Value - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, April 2011), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. Residential/Parkland/Institutional Property Use, Coarse Textured Soil. - Meters below grade surface. - Sample result exceeds applicable 2004 Standard for. Value - Sample result exceeds applicable 2011 Standard for. DST CONSULTING ENGINEERS INC.

11 2720 Richmond Road TABLE 2 - SOIL ANALYTICAL RESULTS - BTEX & PETROLEUM HYDROCARBONS (PHCs) BTEX BHMW1 SS BHMW2 SS BHMW3 SS BHMW4 SS Conc A Conc B 4-Feb-08 4-Feb-08 5-Feb-08 6-Feb Feb Feb-08 Benzene <0.1 <0.1 <0.1 <0.1 NA NA Toluene <0.1 <0.1 <0.1 <0.1 NA NA Ethylbenzene <0.1 <0.1 <0.1 <0.1 NA NA o-xylene NV NV <0.1 <0.1 <0.1 <0.1 NA NA p+m Xylenes NV NV <0.2 <0.2 <0.2 <0.2 NA NA Petroleum Hydrocarbons (PHCs) F1 PHCs (C6-C10) <10 <10 <10 <10 NA NA F2 PHCs (C10-C16) <5 <5 <5 <5 NA 49 F3 PHCs (C16-C34) <10 <10 <10 <10 NA 240 F4 PHCs (C34-C50) 2,800 2,800 <10 <10 <10 <10 NA 20 Notes: Parameter Description mbgs NV NA < Value Value All units in micrograms per gram (μg/g). - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, March 2004), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. Residential/Parkland/Institutional Property Use, Coarse Textured Soil. - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, April 2011), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. Residential/Parkland/Institutional Property Use, Coarse Textured Soil. - Meters below ground surface. - No value available. - Not Analyzed. - Less than the Laboratory Detection Limit (value indicated). - Sample result exceeds applicable 2004 Standard for - Sample result exceeds applicable 2011 Standard for Analytical Results (Sampling ID/ Depth - mbgs /Sampling Date) DST CONSULTING ENGINEERS INC.

12 2720 Richmond Road TABLE 3 - SOIL ANALYTICAL RESULTS - POLYCYCLIC AROMATIC HYDROCARBONS (PAHs) BHMW1 SS BHMW2 SS BHMW3 SS Conc A Conc B 4-Feb-08 4-Feb-08 5-Feb Feb Feb-08 Acenaphthene < 0.03 < 0.02 < 0.03 < < Acenaphthylene < 0.03 < 0.02 < 0.03 < < Anthracene < 0.03 < 0.02 < Benzo[a]anthracene < < Benzo[a]pyrene < < Benzo[b]fluoranthene < < Benzo[b+k]fluoranthene NV NV < < Benzo[g,h,i]perylene < 0.03 < 0.02 < 0.03 < < Benzo[k]fluoranthene < < Chrysene 12 7 < < Dibenzo[a,h]anthracene < 0.03 < 0.02 < 0.03 < < Fluoranthene < < Fluorene < 0.03 < 0.02 < Indeno[1,2,3-cd]pyrene < 0.03 < 0.02 < 0.03 < < Methylnaphthalene 1 < 0.03 < 0.02 < Methylnaphthalene 2 <0.03 < 0.02 < Naphthalene < 0.03 < 0.02 < Phenanthrene < < Pyrene < < Notes: Parameter Description NV mbgs < All units in micrograms per gram (μg/g). Analytical Results (Sampling ID/ Depth - mbgs /Sampling Date) - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, March 2004), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. Residential/Parkland/Institutional Property Use, Coarse Textured Soil. - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, April 2011), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. Residential/Parkland/Institutional Property Use, Coarse Textured Soil. - No value available. - Meters below grade surface. - Less than the Laboratory Detection Limit (value indicated). Value - Sample result exceeds applicable 2004 Standard for. Value - Sample result exceeds applicable 2011 Standard for. DST CONSULTING ENGINEERS INC.

13 2720 Richmond Road TABLE 4 - GROUNDWATER ANALYTICAL RESULTS - METALS Parameter Description Units Analytical Results (Sampling ID/Sampling Date) DUP BHMW1 (Duplicate of RM BHMW2 BHMW3 RM BHMW4 BHMW1) 8-Feb-08 8-Feb Feb-08 8-Feb Feb-08 Alkalinity (as CaCO3) mg/l NV NV NA NA NA Conductivity µmho/cm NV NV NA NA NA Total Dissolved Solids (TDS) mg/l NV NV NA NA NA ph ph Units NV NV NA NA NA Ammonia (N) (total) mg/l NV NV NA NA < NA Nitrate (N) mg/l NV NV NA NA NA Sulphate mg/l NV NV NA NA NA Antimony µg/l 16,000 20,000 < 0.1 < 0.1 < Arsenic µg/l 480 1, Barium µg/l 23,000 29, Beryllium µg/l < 2 < 2 < 2 < 2 < 2 Boron µg/l 50,000 45, Cadmium µg/l < 0.02 < 0.02 < 0.02 < 0.02 < 0.02 Chromium (Total) µg/l 2, < 2 < 2 < 2 < 2 5 Chromium (VI) µg/l < 2 < 2 < 2 < 2 < 2 Cobalt µg/l Copper µg/l < 2 2 < Lead µg/l < 0.02 < 0.02 < Mercury µg/l < 0.02 < 0.02 < 0.02 < 0.02 < 0.02 Molybdenum µg/l 7,300 9,200 < 10 < 10 < Nickel µg/l 1, < 10 < 10 < 10 < 10 < 10 Selenium µg/l Silver µg/l < 0.02 < 0.02 < < 0.02 Thallium µg/l < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 Vanadium µg/l <5 <5 <5 < 5 5 Zinc µg/l 1,100 1, <5 22 Notes: NA NV - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, March 2004), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. All Types of Property Use, Coarse Grained. - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, April 2011), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. All Types of Property Use, Coarse Grained. - Not analyzed. - No value available < - Less than the Laboratory Detection Limit (value indicated). Value - Sample result exceeds applicable 2004 Standard for. Value - Sample result exceeds applicable 2011 Standard for. DST CONSULTING ENGINEERS INC.

14 2720 Richmond Road TABLE 5 - GROUNDWATER ANALYTICAL RESULTS - PETROLEUM HYDROCARBONS AND BTEX Parameter Description BHMW1 Analytical Results (Sampling ID/Sampling Date) DUP (Duplicate of RM BHMW2 BHMW3 RM BHMW4 BHMW1) 8-Feb-08 8-Feb Feb-08 8-Feb Feb-08 BTEX Benzene 1, < < <0.5 Toluene 5,900 2,300 <0.5 <0.5 <0.5 <0.5 <0.5 Ethylbenzene 28,000 18, < <0.5 o-xylene NV NV <0.5 <0.5 <0.5 <0.5 <0.5 p+m Xylenes NV NV <1.0 <1.0 <1.0 <1.0 <1.0 Petroleum Hydrocarbons F1 PHCs (C6-C10) NV 750 <50 <50 <50 <50 <50 F2 PHCs (C10-C16) NV 150 <50 <50 <50 <50 <50 F3 PHCs (C16-C34) NV 500 <500 <500 < <500 F4 PHCs (C34-C50) NV 500 <500 <500 <500 <500 <500 Notes: - All units in micrograms per liter (μg/l). - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, March 2004), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. All Types of Property Use, Coarse Grained. - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, April 2011), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. All Types of Property Use, Coarse Grained. NV - No value available < - Less than the Laboratory Detection Limit (value indicated). Value - Sample result exceeds applicable 2004 Standard for. Value - Sample result exceeds applicable 2011 Standard for. DST CONSULTING ENGINEERS INC.

15 2720 Richmond Road TABLE 6 - GROUNDWATER ANALYTICAL RESULTS - POLYCYCLIC AROMATIC HYDROCARBONS Parameter Description BHMW1 8-Feb-08 RM BHMW2 15-Feb-08 Acenaphthene 1, < 0.05 <0.5 Acenaphthylene 2, < 0.05 <0.5 Anthracene < 0.05 <0.5 Benzo[a]anthracene < 0.05 <0.5 Benzo[a]pyrene < 0.01 <0.01 Benzo[b]fluoranthene < 0.05 < 0.05 Benzo[b+k]fluoranthene NV NV < 0.05 < 0.05 Benzo[g,h,i]perylene < 0.05 < 0.05 Benzo[k]fluoranthene < 0.05 < 0.05 Chrysene 3 1 < 0.05 < 0.05 Dibenzo[a,h]anthracene < 0.05 < 0.05 Fluoranthene < 0.05 < 0.05 Fluorene < 0.05 < 0.05 Indeno[1,2,3-cd]pyrene < 0.05 < Methylnaphthalene 13,000 < 0.05 < ,800 2-Methylnaphthalene (total) < 0.05 < 0.05 Naphthalene 5,900 1,400 < 0.05 < 0.05 Phenanthrene < Pyrene < 0.05 < 0.05 Notes: All units in micrograms per liter (μg/l). Analytical Results (Sampling ID/Sampling Date) - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, March 2004), : Full Depth Generic Site Condition Standards in a Non-Potable Ground Water Condition. All Types of Property Use, Coarse Grained. - "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act" (MOE, April 2011), : Full Depth Generic Site Condition Standards in a Non- Potable Ground Water Condition. All Types of Property Use, Coarse Grained. NV - No value available < - Less than the Laboratory Detection Limit (value indicated). Value - Sample result exceeds applicable 2004 Standard for. Value - Sample result exceeds applicable 2011 Standard for. DST CONSULTING ENGINEERS INC.

16 LIMITATIONS OF REPORT The information, conclusions and recommendations given herein are specifically for this project and BBPM and CFMO, and for the scope of work described herein. It may not be sufficient for other uses. DST does not accept responsibility for use by third parties. The data, conclusions and recommendations which are presented in this report, and the quality thereof, are based on a scope of work authorized by the Client. Note, however, that no scope of work, no matter how exhaustive, can identify all contaminants or all conditions above and below ground. For example, conditions between test holes may differ from those encountered in the investigation and observed or measured conditions may change with time. This report therefore cannot warrant that all conditions on or off the site are represented by those identified at specific locations. Any recommendations and conclusions provided that are based on conditions or assumptions reported herein will inherently include any uncertainty associated with those conditions or assumptions. In fact many aspects involving professional judgement such as subsurface models and remediation criteria contain a degree of uncertainty which cannot be eliminated. This uncertainty should be managed by periodic review and refinement as additional information becomes available. Note also that standards, guidelines and practices related to environmental investigations may change with time. Those which were applied at the time of this investigation may be obsolete or unacceptable at a later date. Any comments given in this report on potential remediation problems and possible methods are intended only for the guidance of the designer. The scope of work may not be sufficient to determine all of the factors that may affect construction or clean-up methods and costs. Any results from Caduceon Environmental Laboratories (Division of Caduceon Enterprises Inc.) or other subcontractors reported herein have been carried out by others, and DST Consulting Engineers Inc. cannot warrant their accuracy. Similarly, DST cannot warrant the accuracy of information supplied by the client.