A Transportation Impact assessment was prepared for the Municipal Class Environmental Assessment for the Carp snow disposal facility to quantify the impact of additional truck traffic on the existing road infrastructure. Increasing truck traffic by 20 trips/hour (dozer operation) and 90 trips/hour (blower operation) was examined. The study found the level of service for existing conditions at the Westbrook/Carp intersection to be less than desirable and proposed measures to mitigate the potential impacts. To improve the access into the site from Westbrook, a 150m long deceleration lane was recommended.
A natural environment impact assessment statement was prepared to support the Municipal Class Environmental Assessment for the Carp snow disposal facility. Field studies were conducted of the natural environment at the site during 2012/2013. The main findings of the report include evidence of a nesting site for turtles and the presence of five butternut trees. Recommended mitigation measures to reduce potential environmental effects were made and no further impacts are foreseen.
A Stormwater Management & Drainage report was prepared to support the Municipal Class Environmental Assessment for the Carp snow disposal facility. The stormwater assessment report reviewed drainage through the site and the management of stormwater on the site. Calculations were done to determine existing conditions and establish pre-development flows. The design objective is to maintain post-development flows to pre-development levels for the various storm events (2 yr. return to 1:100 yr. return for the 3 hour Chicago storm). The report evaluated the contribution of drainage from off-site sources and recommended that the capacity of existing culverts beneath Westbrook (near Walgreen) be increased. A new stormwater pond of approximately 4-5 ha is specified to provide quantity and quality control to accommodate both on-site and off-site drainage requirements. The stormwater pond will discharge into the Highway 417 roadside ditch along the north limit through an existing culvert that will need to be lowered by a minimum of 0.5m.
A Meltwater assessment report was prepared to support the Municipal Class Environmental Assessment for the Carp snow disposal facility. The meltwater assessment report reviewed the impact of chloride in the meltwater on the receiving stream (Feedmill Creek starts 1.9 kms downstream of discharge to MTO ditch) and the Highway 417 drainage ditch. Melt rates were estimated for the average spring time melt period and dilution requirements (provided from the stormwater pond) defined to achieve a maximum discharge chloride concentration of 1000 mg/L. A meltwater pond is proposed to manage the meltwater discharge.
A Stage I archaeological assessment was completed to support the Municipal Class Environmental Assessment for the Carp snow disposal facility. The archaeological study included a review of the Ministry of Tourism, Culture and Sports registered archaeological sites database, local physiography and topography, historical mapping from the 19th century and a site reconnaissance to confirm the findings of the archival research. Based on the results of the assessment, parts the project property are identified as having potential for previously undiscovered archaeological resources. A recommendation to undertake a Stage 2 Archaeological Assessment was made.
A Hydrogeological Investigation report was prepared to support the Municipal Class Environmental Assessment for the Carp snow disposal facility. The hydrogeological assessment report presented the findings of the investigation completed during 2012/2013. The report identified groundwater flow to be towards the northeast and estimated the groundwater recharge to be between 21 and 119 mm per year. The City maps show the site to be within a Significant Groundwater Recharge Area (SGRA). The findings of the investigation demonstrate that the site does not qualify as a SGRA. Although other City maps also identify the site as being within a Highly Vulnerable Aquifer (HVA), observed conditions at the site suggests otherwise. To prevent any potential contamination of nearby wells, the report recommends that the snow stockpile, dump pad, melt water pond and discharge ditch be lined with a low hydraulic conductivity membrane to prevent melt water from mixing with the groundwater.
An Acoustic assessment report was prepared to support the Municipal Class Environmental Assessment for the Carp snow disposal facility. The predicted noise levels from 4 pieces of equipment operating on site and from the truck traffic were used as input to a predictive acoustical model for calculating the noise level at nearby receptors. The model considers sound emissions under predictable worst-case operating conditions. The report recommends that a berm be constructed along a segment of the property’s east limit to reduce noise to an acceptable level at the closest receptor along this limit.
A Visual assessment report was prepared for the Municipal Class Environmental Assessment for the Carp snow disposal facility. Visual impacts from the snow stockpile development were evaluated from an approach from all four sides of the property. The north and south sides include the Highway 417 and Westbrook road, respectively. Impacts are predicted to occur under full development height of 15m along segments of the North limit and East limit. Recommended mitigation measures include construction of a berm and planting of vegetation to improve the landscape.
A Geotechnical Investigation was prepared for the Municipal Class Environmental Assessment for the Carp snow disposal facility. The investigation identified the presence of fill areas within the property and found drainage to be poor due to many areas with ponded water. A total of eight boreholes were drilled and four monitoring wells installed for groundwater monitoring. The report provided recommendations for the design of foundations, suitability of soils, and road construction. The site was evaluated for earthquake considerations. The groundwater level was found to be close to ground surface.