CH2M [ CH2M [ CH2M [ CH2M [KWO KWO KWO KWO] 72 Victoria Street Suite 300 Kitchener, ON N2G 4Y9 1 519 579 3500 www.ch2m.com Nicole Wilmot, MES, MCIP, RPP Manager of Policy Planning, Community Services The Corporation of the City of Brantford 100 Wellington Square Brantford, ON N3T 2M3 November 2, 2015 Subject: Air Quality and Noise Monitoring Summary for October 13 to 23, 2015 Sydenham-Pearl Brownfield, Brantford Dear Ms. Wilmot, The Corporation of the City of Brantford (City) retained CH2M HILL Canada Limited (CH2M) to provide environmental services for 17 and 22 Sydenham Street, collectively known as the Sydenham-Pearl Brownfield Site (Site), located within Brantford, Ontario. Remediation activities occurring onsite are expected to cause dust from soil handling and transport, noise from excavation/remedial activities and emissions of volatile organic compounds (VOCs) to the air during the VOC targeted remediation. To provide information on the ambient air and noise, monitoring is occurring at the Site during remedial activities until the scheduled completion at the end of November. Total suspended particulate (TSP) sampling and noise level are monitored daily at four stations (AQ1 through AQ4) around the Site; locations are indicated on the Site Plan attached. Weather statistics are collected from a meteorological monitoring station (W1) which is also shown on the attached Site Plan. TSP results will be compared to the current Ministry of the Environment and Climate Change (MOECC) 24 hour average Ambient Air Quality Criteria (AAQC) (MOE, 2012) of 120 μg/m 3 , and a corresponding 1 hour average TSP of 292 μg/m 3 to assess the potential for exceeding the TSP limit. Noise limits were based on alternative sources as there are no regulatory limits defined by the MOECC or the City of Brantford. These guidelines indicate noise attributable to excavation/remediation activities should generally aim to be below 70 decibels (dBA) or 5 dBA over the baseline (pre-construction) noise levels (whichever is higher) (Department of Environment & Climate Change New South Wales, 2009; Massachusetts Turnpike Authority, 2002). Background sampling for TSP and noise was conducted from October 10 to 12, as summarized in Table 1 below. Table 1. Summary of Background Monitoring Table 1. Summary of Background Monitoring Table 1. Summary of Background Monitoring Table 1. Summary of Background Monitoring Sydenham-Pearl Brownfield, Brantford Station ID TSP, ug/m3 Noise Reading, 1 hr Leq dBA (7am-7pm) 24-hr Average Max Min Max Min AQ1 19.1 26.6 14.2 53.5 42.1 AQ2 13.3 14.9 11.9 52.7 42.6 AQ3 12.7 13.3 12.1 58.1 46.7 AQ4 14.3 14.8 13.6 70.5 37.0 Notes: TSP not corrected for meteorological events (i.e. high humidity)
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CH2M [CH2M [CH2M [CH2M [KWOKWOKWOKWO]]]]
72 Victoria Street
Suite 300
Kitchener, ON N2G 4Y9
1 519 579 3500
www.ch2m.com
Nicole Wilmot, MES, MCIP, RPP
Manager of Policy Planning, Community Services
The Corporation of the City of Brantford
100 Wellington Square
Brantford, ON N3T 2M3
November 2, 2015
Subject: Air Quality and Noise Monitoring Summary for October 13 to 23, 2015
Sydenham-Pearl Brownfield, Brantford
Dear Ms. Wilmot,
The Corporation of the City of Brantford (City) retained CH2M HILL Canada Limited (CH2M) to provide
environmental services for 17 and 22 Sydenham Street, collectively known as the Sydenham-Pearl Brownfield Site
(Site), located within Brantford, Ontario. Remediation activities occurring onsite are expected to cause dust from
soil handling and transport, noise from excavation/remedial activities and emissions of volatile organic compounds
(VOCs) to the air during the VOC targeted remediation. To provide information on the ambient air and noise,
monitoring is occurring at the Site during remedial activities until the scheduled completion at the end of
November.
Total suspended particulate (TSP) sampling and noise level are monitored daily at four stations (AQ1 through AQ4)
around the Site; locations are indicated on the Site Plan attached. Weather statistics are collected from a
meteorological monitoring station (W1) which is also shown on the attached Site Plan. TSP results will be
compared to the current Ministry of the Environment and Climate Change (MOECC) 24 hour average Ambient Air
Quality Criteria (AAQC) (MOE, 2012) of 120 μg/m3, and a corresponding 1 hour average TSP of 292 μg/m3 to assess
the potential for exceeding the TSP limit.
Noise limits were based on alternative sources as there are no regulatory limits defined by the MOECC or the City
of Brantford. These guidelines indicate noise attributable to excavation/remediation activities should generally aim
to be below 70 decibels (dBA) or 5 dBA over the baseline (pre-construction) noise levels (whichever is higher)
(Department of Environment & Climate Change New South Wales, 2009; Massachusetts Turnpike Authority, 2002).
Background sampling for TSP and noise was conducted from October 10 to 12, as summarized in Table 1 below.
Table 1. Summary of Background Monitoring Table 1. Summary of Background Monitoring Table 1. Summary of Background Monitoring Table 1. Summary of Background Monitoring
Sydenham-Pearl Brownfield, Brantford
Station ID TSP, ug/m3 Noise Reading, 1 hr Leq dBA (7am-7pm)
24-hr Average Max Min Max Min
AQ1 19.1 26.6 14.2 53.5 42.1
AQ2 13.3 14.9 11.9 52.7 42.6
AQ3 12.7 13.3 12.1 58.1 46.7
AQ4 14.3 14.8 13.6 70.5 37.0
Notes: TSP not corrected for meteorological events (i.e. high
humidity)
Nicole Wilmot, MES, MCIP, RPP
Page 2
November 3, 2015
CH2M HILL CANADA LIMITED • COMPANY PROPRIETARY
The TSP sampling was conducted to have an understanding of baseline conditions and ensure there was no
background source contributing to particulate levels. The noise levels were measured to determine whether the
action level would be 70 dBA or 5 dBA over the baseline. Based on the background noise readings, the action level
for noise used for the Site is 70 dBA based on a 1-hour equivalent continuous noise level (Leq).
It is expected, however, during heavy operations the noise limits may be exceeded due to proximity of activities to
the property boundaries. This excessive noise will be limited to working hours (7am to 7pm) and should any noise
concerns be raised, efforts will be made to mitigate the issue.
The VOC monitoring program includes monitoring at four locations using 6-litre Summa canisters during the period
when VOC remediation is occurring. Samples will be analyzed at an accredited lab, and results will be compared to
the MOECC 24 hour average AAQC for VOCs identified in the USEPA TO-15 Target List (USEPA, 1999). Monitoring
has commenced as of October 28, to correspond with the start of the VOC remediation and will be reported in
subsequent reports.
Results Summary
A summary of the daily monitoring activities that occurred between October 13th and 23rd are provided in
Attachment 1. Results indicate there were generally no exceedances or environmental monitoring concerns for
noted duration, with the exception of some battery/power problems at a couple of the stations.
We trust the information included in this letter to be complete and in order. Should the City of Brantford or
MOECC have any outstanding concerns further to the work completed and the results obtained, please do not
hesitate to contact the undersigned.
References
Department of Environment & Climate Change New South Wales, 2009. Interim Construction Noise Guideline. July.
Massachusetts Turnpike Authority, 2002. Construction Noise Control Specification 721.560, Central Artery/Tunnel
Project, Boston, MA.
Ministry of the Environment (MOE), 2012. Ontario’s Ambient Air Quality Criteria. Standards Development Branch.
April.
U.S. Environmental Protection Agency (USEPA), 1999. Compendium of Methods for the Determination of Toxic
Organic Compounds in Ambient Air, Compendium Method TO-15, Determination of Volatile Organic Compounds
(VOCs) in Air Collected in Specially-Prepared Canisters and Analyzed by Gas-Chromatography/Mass Spectrometry
(GC/MS). Centre of Environmental Research Information, Office of Research and Development. January.
(a) Based on 18.8 hours of data (excluding 23:10AM - 18:00PM). Low battery voltage caused equipment to shutdown unexpectedly.
NNNE
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WSW
WSW
WNW
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NNWWind Direction
AIR QUALITY AND NOISE MONITORING - DAILY SUMMARY
DUST (TOTAL PARTICULATE) DATE: 23-Oct-15
Station IDAverage 24-Hr TSP
(ug/m3)24-Hr AAQC TSP
(ug/m3)# of
ExceedancesComments
AQ1 13.4 120 0 NAAQ2 8.7 120 0 See Note 1(a)AQ3 13.3 120 0 See Note 1(c)AQ4 13.0 120 0 NA
Station IDMax Hourly TSP
(ug/m3)ACL (ug/m3)
# of Exceedances
Comments
AQ1 34.4 292 0AQ2 23.0 292 0 See Note 1(a)AQ3 31.5 292 0 See Note 1(c)AQ4 32.5 292 0
SOUND LEVELS
Station IDMax Hourly SPL
(dBA)ACL (dBA)
# of Exceedances
Comments
AQ1 70.6 70 2 See Note 1(b)AQ2 71.7 70 1 See Note 1(a) and (b)AQ3 62.9 70 0 NAAQ4 64.7 70 0 NA
WEATHER STATISTICS
Parameters Reading Unit
Barometer 29.7 "HgOutdoors Humidity 65.1 %Temperature 6.1 CRain Rate 0.0 cm/dayWind Direction See Notes 2 %Wind Speed 2.9 km/h
NOTES 1: NOTES 2:(a) Limited sun exposure and low external battery voltage caused equipment to shutdown (12:00-9:12am). Averages based on available data.(b) Elevated noise levels from 11am to 3pm due to excavator activites in close proximity to AQ1 and AQ2.(c) Low internal battery voltage caused DustTrak to shutdown unexpectedly (12:00-11:00am). Averages based on available data.
