TABLE OF CONTENTS 1.0 INTRODUCTION SITE AND AREA DESCRIPTION...1

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2 VALCOUSTICS CANADA LTD. File: Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility TABLE OF CONTENTS 1. INTRODUCTION SITE AND AREA DESCRIPTION ENVIRONMENTAL NOISE ASSESSMENT TRANSPORTATION SOURCES TRANSPORTATION NOISE SOURCES Road Traffic Sources Rail Traffic Sources ENVIRONMENTAL GUIDELINES MOE - NPC CPR Standard Mitigation Requirements Region of Halton Town of Milton ROAD AND RAIL NOISE IMPACT ASSESSMENT NOISE CONTROL MEASURES Exterior Wall and Window Construction Ventilation Requirements Outdoors Grade Level OLA s Second Level Outdoor Decks (Block 74) Warning Clauses INDUSTRY NOISE INDUSTRY NOISE SOURCES Modatek & Karmax Plants Additional Industrial Lands at the East Side of Peru Road ENVIRONMENTAL GUIDELINES Outdoors Plane of a Window Ambient Sound Levels Applicable Guideline Limits Town of Milton Noise By-law D-1 and D-6 Land Use Compatibility Guidelines NOISE IMPACT ASSESSMENT Methodology Noise Control Measures Considered At Source Noise Control Measures Acoustical Screening From Existing and Future Developments Sound Level Prediction Scenarios Sound Level Prediction Results Impulse Scenario Non-Impulse Scenario Proposed Mitigation - Lots 9 to /cont d... 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

3 VALCOUSTICS CANADA LTD. File: Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility TABLE OF CONTENTS (continued) 4. GROUND VIBRATION CONCLUSIONS REFERENCES...12 LIST OF TABLES TABLE 1A FUTURE ROAD TRAFFIC DATA...14 TABLE 1B RAIL TRAFFIC DATA CPR GALT SUBDIVISION TABLE 2 PREDICTED SOUND LEVEL OUTDOORS ROAD TRAFFIC NOISE NO MITIGATION TABLE 3 NOISE ABATEMENT MEASURES TABLE 4 PREDICTED SOUND LEVEL OUTDOORS ROAD TRAFFIC NOISE WITH MITIGATION LIST OF FIGURES FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4 KEY PLAN SITE PLAN KARMAX + MODATEK FUTURE 2 AND NEW HYPOTHETICAL INDUSTRY NON-IMPULSE SCENARIO EXCESSES MODATEK - IMPULSE FUTURE 2A SCENARIO EXCESSES LIST OF APPENDICES APPENDIX A APPENDIX B APPENDIX C APPENDIX D APPENDIX E ROAD AND RAIL TRAFFIC DATA CORRESPONDENCE ENVIRONMENTAL NOISE GUIDELINES SAMPLE CALCULATION ROAD AND RAIL TRAFFIC SOURCES MODATEK AND KARMAX PLANT DESCRIPTIONS STATIONARY SOURCE ANALYSIS PARAMETERS AND ASSUMPTIONS /cont d... 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

4 VALCOUSTICS CANADA LTD. File: Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility LIST OF APPENDICES (continued) TABLE OF CONTENTS (continued) APPENDIX F APPENDIX G APPENDIX H AMBIENT SOUND LEVEL CALCULATION PROCEDURE DISCUSSIONS REGARDING D-1 AND D-6 GUIDELINES AND DISCUSSION OF LANDS AT 75 PERU ROAD KARMAX PRESS GROUND VIBRATION ASSESSMENT 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

5 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 1 UPDATE Environmental Noise Feasibility Assessment Milton Heights Neighbourhood Royal Park South Proposed Mixed-Use Development rd New Tremaine Road and 3 Line Sideroad Town of Milton 1. INTRODUCTION Valcoustics Canada Ltd. (VCL) previously prepared a Noise Feasibility Assessment for the overall Milton Heights Neighbourhood dated November 28, 26 (hereafter referred to as the November 28, 26 Report - Reference 5); and VCL also prepared noise feasability studies for the other three sites in the overall Milton Heights Neighbourhood, Royal Park North (RPN), Andrin Homes (Andrin) and Century Grove (References 6 to 8). This report has been prepared for the Royal Park South parcel. The assessment considers both the stationary and transportation noise sources in the vicinity. The predicted sound levels on site have been compared to the applicable sound level limits of the Ministry of the Environment (MOE) Publication NPC-3. This assessment concludes that the proposed residential uses are feasible, relative to ensuring compliance with the applicable environmental noise guidelines. 1.1 SITE AND AREA DESCRIPTION The site is generally located at the southwest corner of the intersection of New Tremaine Road and No. 3 Side Road except for a small portion (12 lots) located on the north side of No. 3 Sideroad. Not including these 12 lots, the site is bounded by: 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

6 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 2 No. 3 Sideroad and existing detached residential dwellings, with the future Royal Park North development beyond, to the north; the future New Tremaine Road, with the future Century Grove mixed-use site beyond, to the east; Greenland Area (Sixteen Mile Creek) along the south side, with some existing detached residential and future residential (Andrin site) beyond, to the south; and existing detached residential to the west. As part of the development New Tremaine Road will be realigned and will interchange with Highway 41. The realigned New Tremaine Road will border the east side of the site and will be elevated to accommodate a grade separation over Highway 41. The elevated section starts north of the site; north of No. 3 Sideroad. The application proposes two-storey detached dwellings, with three-storey townhouse blocks and a three storey condo block along the east side. There are two mixed-use blocks adjacent to the south side of No. 3 Sideroad and 12 lots adjacent on the north side. The concept design for the condo block is similar to that used for the northern most dwellings at the RPN subdivision. That is, there will be no grade level amenity spaces for these dwellings. The amenity spaces will be in the form of second floor rear decks over the garage areas. A Key Plan is shown as Figure 1. This report is based on the RPS Draft Plan of Subdivision prepared by Humphries Planning Group Inc. Dated November 14, 215 and the RPS Concept Plan prepared by Freeman Planning Solutions Inc., showing latest revised date of October 6, 214. The RPS Draft Plan is included as Figure 2. In addition the grading information from the Grading Concept plan prepared by Urbantech Consulting, received December 16, 214 was also considered. For ease of description VCL has added some additional numbering to the blocks. For example, Block 7 was divided into two townhouse blocks labelled 7A and 7B. See Figure ENVIRONMENTAL NOISE ASSESSMENT TRANSPORTATION SOURCES 2.1 TRANSPORTATION NOISE SOURCES The noise sources with the potential for impact on the proposed development are: Road traffic on: Highway 41; and the realigned New Tremaine Road. Rail traffic on the Canadian Pacific Railways (CPR) rail line. The existing Tremaine Road was reviewed but was found to be insignificant relative to the Highway 41 noise contribution, and therefore, is not included in the noise prediction summaries. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

7 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 3 Traffic volumes on the existing Peru Road and No. 3 Sideroad are insignificant relative to the other (primary) traffic sources and have not been considered Road Traffic Sources Road traffic data used in this assessment is summarized in Table 1. Appendix A includes associated correspondence. The future (ultimate) traffic data for Highway 41 was obtained from Ministry of Transportation (MTO). The traffic data for the New Tremaine Road realignment (future condition) was obtained from the Region of Halton Rail Traffic Sources Rail traffic data used in this assessment is summarized in Table 1B. Appendix A includes associated correspondence. As part of the Peer Review process done for the other sites in the Milton Heights Neighbourhood, it is understood that GO train service may once again include the section of the CPR line opposite to the site. Subsequent clarification from GO Transit indicates that no specific plans are currently in place for expansion west of the Milton station and including the section in proximity to the site, but are under review as part of an upcoming Environmental Assessment (EA) looking at service expansion on this corridor. In the absence of specific data, the previous GO volume for this section of rail line of 1 trains per 24-hour day for the year 26 condition was considered to address this possibility, and escalated to the future design condition along with the other train types noted in the summary correspondence. The 1 trains per day assumes the same eight trains daytime/two trains nighttime split. 2.2 ENVIRONMENTAL GUIDELINES MOE - NPC 3 In October 213, the MOE released the Publication NPC-3 noise guideline (although it is dated August 213). NPC-3 replaces the four existing noise guidelines in Ontario (Publications LU-131, NPC-25 and NPC-232, as well as Noise Assessment Criteria in Land Use Planning: Requirements, Procedures and Implementation ). NPC-3 is now being used to assess the noise impacts from the transportation noise sources as well as the industrial sites. The site is a Class 1 area. The noise limits are the higher of the existing ambient or the minimum exclusion limits of 5 dba daytime and evening (7 to 23 hours) and 45 dba nighttime (23 to 7 hours). The MOE noise guidelines are summarized in Appendix B. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

8 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page CPR Standard Mitigation Requirements The CPR line to the southwest is classified as a principal mainline. CPR has a set of "standard mitigation" measures to address both noise and vibration from through rail traffic. However, as the site is located almost half a kilometre away, and there are several intervening existing dwellings between, these standard mitigation requirements can be assumed not to apply Region of Halton The Region of Halton Noise Attenuation Technical Policy (Reference 12) sets a maximum 3. m height for sound barriers adjacent to Regional Roads. The acoustical consultant originally representing the Region of Halton (for this Milton Heights project) indicates that in practice up to 3.5 m can be allowable in some cases and that the minimum sound barrier height is 2.4 m (Reference 13). The policy speaks to the height of the noise barrier "wall", and does not appear to state or imply that the height is inclusive of a berm. In other words, the maximum height relates only to the wall or fence portion, and the overall height including an earth berm (or retaining wall) can exceed the 3. m height Town of Milton The sound barrier requirements from the Town of Milton are indicated in the Engineering and Parks Standards dated August 21 (Reference 14). The sound barrier requirements relate to sound barriers adjacent to municipal roads. Section indicates The maximum barrier height shall be 2. m, although greater heights can be obtained using a combination berm and wall. Maximum height adjacent to rail lines shall be 3. m. However, based on comments received during the preparation of the acoustic reports for the other developments within the Milton Heights neighbourhood, it is understood (via an , dated January 7, 214, from the Engineering Services department at the Town), a maximum allowable acoustic fence height of 2.4 m to mitigate road traffic noise can be used (Reference 15). 2.3 ROAD AND RAIL NOISE IMPACT ASSESSMENT Using the road traffic data in Table 1A and 1B, the sound energy exposures, in terms of L eq Day and L eq Night, were determined using STAMSON V5.4 ORNAMENT, the computerized road traffic noise prediction model of the MOE. The daytime and nighttime calculations were made at top storey heights for each dwelling representing the top storey windows, that is at 7.5 m above grade for the townhouse and condo townhouse dwellings and 4.5 m above grade for the single family dwellings. At the outdoor amenity areas (OLA s), the receptor height used was 1.5 m representing standing height at grade (for grade level OLA s) and 1.5 m above the garage height (3.6 m above grade) for the raised decks. Screening of the Highway 41 express lanes by the elevated realigned New Tremaine Road, as well as the elevated Highway 41 on-ramp, was not accounted for in the noise predictions. Screening from existing dwellings in the vicinity, those at the southwest corner of New Tremaine rd Road and 3 Side Road, were not accounted for. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

9 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 5 The highest daytime and nighttime sound levels of 72 dba and 66 dba, respectively, are predicted at the east facade of the eastern most townhouse dwelling in Block 7 adjacent to New Tremaine Road. This is shown as Block 7B on Figure 2. The highest daytime sound level in an OLA of 68 dba also occurs at the eastern most townhouse dwelling in Block 7 (Block 7B). At the condo block, the second floor outdoor decks at the west side of these units are well shielded from road traffic on New Tremaine Road, except at the outer end units of Blocks 74A, 74B, 74C and 74D due to the lack of screening by the building structure at the one side. At these outer end units, the predicted daytime sound levels are up to 61 dba. Table 2 summarizes the predicted sound level calculations due to the transportation noise sources without mitigation. A sample calculation is included as Appendix C. 2.4 NOISE CONTROL MEASURES The noise control measures for transportation noise sources can generally be classified into two categories which are interrelated, but which can be treated separately for the most part: (a) (b) Architectural elements to achieve acceptable indoor noise guidelines; Design features to protect the OLA s. Figure 2, Table 3 and the Notes to Table 3 summarize the transportation noise abatement recommendations Exterior Wall and Window Construction Construction above the minimum requirements governed by the minimum Ontario Building Code (OBC) should be expected at the dwellings along the west side of New Tremaine Road. The required Sound Transmission Class (STC) ratings for the exterior facades were calculated assuming windows have a surface area equalling 3% of the associated room floor area, and exterior walls were assumed to have a surface area equal to 8% of the associated room floor area for walls carrying a window. The exterior wall and window requirements are based on standard assumptions and should be checked once detailed working drawings are available for the dwellings. For the two easternmost condo townhouse blocks in Block 74 (74A and 74B), Block 72 and the eastern most townhouse block in Block 7 (Block 7B) along the west side of New Tremaine Road, brick veneer exterior wall construction (or STC 54 equivalent) is recommended, and has been assumed when determining the exterior window STC requirements. Figure 2 shows the dwellings where the upgraded brick veneer wall construction is recommended. Assuming the brick veneer exterior wall construction is implemented at the above dwellings, windows meeting the minimum non-acoustical aspects of the OBC are predicted to be sufficient 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

10 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 6 for all dwellings in order to meet the MOE indoor sound level limits. Upgraded exterior window construction is not anticipated Ventilation Requirements Mandatory air conditioning is required for the first row of dwellings adjacent to New Tremaine Road, that is the eastern most townhouse block in Block 7 (Block 7B), Block 72 and the two easternmost condo townhouse blocks in Block 74 (74A and 74B). Beyond the first row requiring air conditioning, subsequent rows and locations will require the provision to allow the future installation of air conditioning, by the occupant. For low density development, the provision normally takes the form of a ducted ventilation system suitably sized to accommodate the addition of central air conditioning. Figure 2 and Table 3 show the ventilation requirements Outdoors The unmitigated daytime sound levels at the OLA s of the dwellings along the eastern and southern peripheries of the site with exposure to New Tremaine Road are predicted to be above the 55 dba MOE guideline and 6 dba MOE upper limit in some cases. Thus, sound barriers are required. The sound barrier requirements are shown on Figure 2, and summarized in Table 3. Table 4 summarizes the predicted sound levels with sound barriers, where applicable. The sound barrier requirements will need to be reviewed and confirmed once final development grading and dwelling sitings become available. Sound barriers must be of solid construction with no gaps, cracks or holes and must have a minimum surface density of 2 kg/m². A variety of materials are available including wood, masonry, earth berms, or a combination of materials Grade Level OLA s Block 7 Easternmost Townhouses (Block 7B) the Region s maximum 3. m high sound barrier will mitigate the daytime sound level at the easternmost lot to 59 dba. This is within the upper 6 dba limit of the MOE, provided warning clauses are registered on title. At all other lots in this block, the mitigated sound levels would be 55 dba or less. At Block 7A, the unmitigated daytime sound level is up to 58 dba. However, accounting for the attenuation provided by the required sound barrier at Block 7B, discussed above, the daytime sound levels are less than 55 dba. Therefore, sound barriers are not required here. Lots 45 to 52 - a 1.8 m high sound barrier will mitigate the daytime OLA sound levels to below 55 dba. However, the unmitigated daytime sound levels at the OLAs of these lots are 56 dba or 57 dba. This 1 or 2 dba excess over the MOE 55 dba objective is considered minor and would be insignificant in practice. Regardless, the unmitigated sound 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

11 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 7 levels are within the upper 6 dba limit of the MOE. Thus, sound barriers are not required at these dwellings with a warning clause registered on title. The railway to the south contributes to those small sound level excesses, which as noted, includes GO rail traffic that may not occur in the future. At all other grade level OLA s the unmitigated daytime sound levels are expected to be 55 dba or less Second Level Outdoor Decks (Block 74) The predicted daytime sound levels at the north and south (outer end) units of condo blocks 74A and 74B and the eastern (end) units of Blocks 74C and 74D exceed the 55 dba guideline limit. Relative to the deck surface, 2. m high sound barriers at the end units of Blocks 74A and 74B and 1.8 m high sound barriers at the end units of Blocks 74C and 74D would mitigate the daytime sound levels to 55 dba or below Warning Clauses Where the sound level guidelines are exceeded, appropriate warning clauses should be registered on title to make future occupants aware of the potential noise situation. See Table 3 and attached notes. 3. INDUSTRY NOISE 3.1 INDUSTRY NOISE SOURCES Modatek & Karmax Plants The current industry noise analysis is based on information for the Modatek and Karmax plants, as described in Appendices D and E, and the materials noted in Reference 9 to 11 as provided by Magna. Appendix D includes brief descriptions for the regular operations at the Modatek and Karmax plants, as provided to us with the Reference 9 materials. Appendix E describes the modelling parameters used in the assessment which were provided by the acoustical consultants for the Town of Milton, Granite Real Estate Inc. and Magna International Inc Additional Industrial Lands at the East Side of Peru Road As requested by the Town, a hypothetical industrial use was considered on the lands at 77 and 99 Peru Road. Details of the analysis are included as Appendix G. 3.2 ENVIRONMENTAL GUIDELINES The applicable environmental noise guidelines for new residential developments are given in MOE Publication NPC-3 and are summarized in Appendix B. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

12 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page Outdoors The MOE guidelines set a (one-hour L eq) exclusion limit of 5 dba, or the ambient due to road traffic noise, if higher, during any hour of the daytime and evening (7 to 23 hours), for the sound level from a stationary source at any outdoor point of reception in any area amenable for use. Balconies under 4 m in depth are not considered points of reception Plane of a Window The applicable sound level limit is expressed in terms of one-hour L eq (as opposed to 16-hour [day] and 8-hour [night] as is used for ground transportation sources). The MOE guidelines provide minimum sound level limits that are called exclusion limits for stationary sources. The applicable receptor sound limits are the exclusion limits or the existing ambient sound level, whichever is higher. Stationary sources need not mitigate to below the exclusion limits, regardless of the ambient. The exclusion limits for a Class 1 area are: Daytime and Evening (7 to 23 hours): 5 dba (L eq 1); Nighttime (23 to 7 hours): 45 dba (L ). The same numerical guideline limits also apply to impulsive sources, based on the logarithmic mean impulse level (L ) description. LM The above sound level limits apply at the outdoor plane of window of a noise sensitive space. Noise sensitive spaces are defined as bedrooms, living rooms, dens, etc. Non noise sensitive spaces include washrooms, closets, etc. The sound level limits do not apply to non noise sensitive windows Ambient Sound Levels Minimum ambient sound levels, due to road traffic sources (Highway 41 and New Tremaine Road), were predicted at the proposed residential buildings. The procedure used is included as Appendix F Applicable Guideline Limits The predicted ambient sound levels are greater than the minimum exclusion limits at the peripheries of the site, where there is greater exposure to the nearby roadways. At the interior of the site, where more screening from the dwellings themselves occurs, the minimum exclusion limits apply Town of Milton Noise By-law Section 5 of the Town of Milton Noise By-law specifically encompasses the noise guidelines documented in MOE publication NPC D-1 and D-6 Land Use Compatibility Guidelines Discussions regarding the D-1 and D-6 guidelines are included here as Appendix G. eq 1 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

13 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page NOISE IMPACT ASSESSMENT Methodology The noise analysis was done using CadnaA V4.4 environmental acoustics modelling software. A 3-D model of each industrial plant and the surrounding lands was developed using the proposed draft plan and industrial building massing (as defined by recent aerial imagery from Google Earth). The site topography is based on the most recent grading plan. The noise modelling accounts for the parameters as described in Appendix E. The acoustical modelling follows the procedures of ISO 9613 Part 2 (except where variations were adopted from recommendations by the consultants working for the Town, Magna and Granite as noted in Appendix E we are not necessarily in full agreement with these variations but used them nonetheless). The sound level predictions were completed using the building evaluation method in the CadnaA acoustic model. This method calculates sound levels on a grid of points over each facade at each storey of the building. The ambient sound levels were also calculated in this way at each building in the model. Algorithms within the program were then used to subtract the applicable guideline limits from the predicted sound levels, to determine locations where sound level excesses may occur. The results below and shown on Figures 3 and 4 are presented in terms of the maximum sound level excesses (as opposed to identifying the industry attributable sound levels and ambient levels separately). For the three-storey townhouses, the building evaluations were set to assess sound levels at the mid point height of the first, second and third storey windows, 1.5 m, 4.5 m and 7.5 m above grade, respectively Noise Control Measures Considered At Source Noise Control Measures The sound level predictions account for the future noise control measures to be included at both industrial plants and as identified in Tables 1A and 2A of the Reference 11 materials and updated for Modatek in the most recent Noise Abatement Action Plan, which is Schedule B of the Amendment to ECA, issue date of July 17, Acoustical Screening From Existing and Future Developments It is understood that the RPS site will not have allocation until 217. At this time it is planned that Phase 1 of both RPN as well as the Century Grove will be constructed. Thus, the acoustic modelling accounts for screening effects from Phase 1 of these two developments. The RPN Phase 1 development includes both the 6.6 m high sound barrier/earthen berm on the east side of New Tremaine Road as well as the commercial buildings (9. m high Building A and 9.4 m high Building B) on Block 86 at the northwest corner of New Tremaine Road and No. 3 Sideroad. The Phase 1 developments of RPN and Century Grove can be seen on Figures 3 and 4. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

14 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page Sound Level Prediction Scenarios Several source scenarios were presented by Magna as part of the Reference 9 to 11 materials. The two most significant (primary) source scenarios for the RPS site are: Impulse Modatek Future Impulse Scenario 2A; and Non-Impulse Hypothetical Industry Scenario (including cumulative impacts from Karmax, Modatek and the Hypothetical Industry). All source scenarios that were provided were assessed. However, the predicted sound levels in the scenarios other than those above are less than those predicted in the primary scenarios listed above. That is, satisfying the primary scenarios will also satisfy the other scenarios by default. Thus, these other scenarios have not been included in the discussion below, but have been assessed. Although the Modatek impulse scenarios are not discussed in detail here, the AAR prepared for Modatek considered the impulse sounds as infrequent. For the purposes of this assessment these impulse sounds have been considered frequent. This distinction significantly affects the applicable sound limit; infrequent having a much higher limit under both NPC-25 and NPC-3. Under NPC-3, frequent means nine or more impulses occurring in the scenario hour. See Appendix E Sound Level Prediction Results Impulse Scenario The results of the Modatek Impulse Future 2A Scenario are shown on Figure 3. The sound levels are predicted to be within the applicable guideline limits at all dwellings except Lots 9 to 12 on the north side of No. 3 Side Road. At these dwellings there are minor 1 dba sound level excesses predicted at the southern facades. The Modatek Impulse Existing and Future 1 Scenario also results in minor 1 dba excesses at the southern facades of Lots 11 and Non-Impulse Scenario The results of the non-impulse Hypothetical Industry Scenario are shown on Figure 4. The sound levels are predicted to be within the applicable guideline limits at all dwellings except Lots 11 and 12 on the north side of No. 3 Side Road. At these dwellings, there are minor 1 dba sound level excesses predicted at the southern facades Proposed Mitigation - Lots 9 to 12 The analysis predicts the potential for minor sound level excesses (1 dba) at Lots 9 to 12 on the north side of No. 3 Side Road. The minor excesses only occur at the southern facades of these dwellings. For these dwellings there are two options for mitigation. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

15 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 11 1 Option 1 - Use site specific designs - By means of proper architectural design, the dwellings can be configured such that there would be no noise sensitive windows on the southern facades. Non noise sensitive windows are windows to spaces such as closets, washrooms, hallways (that are closed off from other sensitive spaces), etc. If the windows on the southern facades are not noise sensitive, then the sound level limits would not apply. As such, compliance with the applicable MOE noise guideline limits would be achieved at all locations on the site. 2 Option 2 - Use Class 4 Receptor. Under NPC-3, Lots 9 to 12 could be deemed a Class 4 receptor area by the land use approval authority (The Town). The Class 4 sound level limits are 1 dba higher than the sound level limits for a Class 1 area. If the Class 4 receptor is applied, the predicted sound levels at these dwellings would be below the applicable sound level limits. These lots are considered a good candidate for the Class 4 receptor status since: the excesses predicted are minor (1 dba) and would be insignificant in practice; the excesses result from a very conservative analysis, which would likely not occur in practice; due to the geometry of the site, it is not possible to eliminate the excesses using conventional methods (such as sound barriers); and there is precedent for the use of the Class 4 receptor in the Milton Heights area (at the full Century Grove site). It is noted that the assessment does not account for any acoustical screening from future development on the Century Grove commercial lands, which would be developed after Phase 1. It is likely that once these lands are developed, the building forms will provide additional screening and the sound levels excesses may be reduced (or eliminated). 4. GROUND VIBRATION Ground vibration from stamping presses at Karmax is not anticipated to exceed the applicable limits at the subject site. The subject site is well over 75 m from the CPR rail line and thus, a vibration assessment is not required. Ground vibration is not anticipated to be problematic. See Appendix H for details of the press vibration analysis for Karmax. 5. CONCLUSIONS The proposed development is considered as being feasible, based on demonstrating compliance with the applicable noise guidelines. In summary 1. Construction above the minimum requirements of the OBC should be expected at the dwellings closest to New Tremaine Road. 2. Brick veneer (or STC 54 equivalent) exterior wall construction is recommended for the dwellings along the eastern periphery closest to New Tremaine Road. See Figure 2. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

16 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page Upgrade window construction is not anticipated, assuming the brick veneer exterior wall construction recommendations are met. 4. Mandatory air conditioning is required for the first row of dwellings on the eastern periphery of the site. 5. Beyond the first row requiring mandatory air conditioning, subsequent rows will require the provision to allow the future installation of air conditioning, by the occupant. For low density development, the provision normally takes the form of a ducted ventilation system suitably sized to accommodate the addition of central air conditioning. 6. Sound barriers (acoustical screening) are required for certain areas. This includes wing wall sound barriers along the side of the second floor decks of four outer end units (Blocks 74A, 74B, 74C and 74D), as well as grade level sound barriers at a few lots (Block 7B). 7. Warning clauses advising the occupants of the potential noise from the roadways are required at several lots. 8. A detailed noise impact study will be required once final site grading and dwelling sitings becomes available. This should also include an update for the exterior window and wall requirements, based on the proposed floor plans. 9. The analysis of the stationary source noise impacts has been updated based on the revised modelling parameters (as provided by others) and the current concept and grading plans. 1. The updated industry noise assessment shows compliance with the applicable MOE noise guidelines at all locations on the subject site except for minor (up to 2 dba excesses) at the southern facades of the dwellings on Lots 9 to 12, on the north side of No.3 Side Road. 11. Two options for mitigation at Lots 9 to 12 have been presented. Option 1 is to use site specific dwelling design methods which restrict noise sensitive windows on the southern facade. With no noise sensitive windows, the sound level limits would not apply. As a result, compliance with the applicable sound level limits would be achieved at all locations on the site. Option 2 is to deem these lots Class 4. With the Class 4 receptor area applied, the applicable sound level limits would be met without the need for physical noise control measures. Further to note, the predicted excess is unlikely to occur in practice and may be reduced or eliminated with the future construction on the commercial lands at the adjacent Century Grove site. 12. Warning clauses advising the occupants that the sounds from the nearby industrial uses may sometimes be audible, are recommended. 6. REFERENCES 1. PC STAMSON 5.4, Computer Program for Road Traffic Noise Assessment, Ontario Ministry of the Environment. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

17 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page Building Practice Note No. 56: "Controlling Sound Transmission into Buildings", by J. D. Quirt, Division of Building Research, National Council of Canada, September "Road and Rail Noise: Effects on Housing", Canada Mortgage and Housing Corporation, Publication NHA 5156, 81/1. 4. Environmental Noise Guideline, Stationary and Transportation Sources - Approval and Planning, Ontario Ministry of the Environment, Publication NPC-3, October 21, "Environmental Noise Feasibility Assessment ", Milton Heights Neighbourhood, November 28, 26, Valcoustics Canada Ltd. Project Environmental Noise Feasibility Assessment, Milton Heights Neighbourhood, Royal Park North, March 1, 213, Valcoustics Canada Ltd. Project: Environmental Noise Feasibility Assessment, Update, Milton Heights Neighbourhood, Andrin Homes Parcel, January 24, 214, Valcoustics Canada Ltd. Project: Environmental Noise Feasibility Assessment, Milton Heights Neighbourhood, Century Grove Parcel, June 13, 213, Valcoustics Canada Ltd. Project: November 11, 211 Memorandum, RWDI Air Inc. 1. December 23, 211 Memorandum, RWDI Air Inc. 11. February 4, 212 transmission with attachments ( Updated Table 1A - Modatek, Updated Table 2A - Karmax, Updated Table 1D - Modatek, Table 2D), RWDI Air Inc. 12. Region of Halton Noise Attenuation Technical Policy for Regional Roads (Retrofit Locations) and New Developments. 13. Milton Heights - Review of VCL Noise Feasibility Assessments - Century Grove V2.2, Royal Park North V2., Andrin Homes V2." Dated May 17, 212, Swallow Acoustic Consultants Ltd. 14. Engineering And Parks Standards, Chapter 1 Design Criteria dated 21, Town Of Milton Noise fence Heights, Martin Bateson, Senior Manager, Development and Building, Engineering Services, Town of Milton, January 7, 214. ML\TH\mk\gks J:\22\12286\211 (Royal Park South Royal Park Homes)\Reports\Milton Meadows-Update RPS Fnl.wpd 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

18 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 14 TABLE 1A FUTURE ROAD TRAFFIC DATA (1) Roadway AADT (2) % Trucks (3) Medium Heavy Speed Limit (kph) % Grade Highway < 2 Tremaine Road (Realigned) Notes: (1) Highway 41 data obtained from the MTO for the ultimate condition. Tremaine Road data obtained from the Region of Halton for the year 231. See Appendix A. (2) AADT - Annual Average Daily Traffic. (3) Heavy/Medium ratio is assumed for Highway 41. TABLE 1B RAIL TRAFFIC DATA CPR GALT SUBDIVISION Period Train Type Average # of Trains Average # of Cars/Train Average # of Locos/Train Maximum Speed (kph) Daytime (7-23 hours) Nighttime (23-7 hours) (1) Freight 24 (38.4) (2) Commuter 8 (12.8 ) (1) Freight 12 (19.2) (2) Commuter 2 (3.2 ) Notes: (1) The data shown in brackets has been projected to the year 225 design condition with a 2.5% growth rate, compounded annually. The worst case data has been used for number of cars/train and locos/train from the range provided. (2) GO Transit has indicated that GO Train service west of Milton Station has ceased since 27. The subject site is west of Milton station but this rail traffic is included in the assessment. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

19 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 15 TABLE 2 PREDICTED SOUND LEVEL OUTDOORS (1) ROAD TRAFFIC NOISE NO MITIGATION (2) (3) Location Source Distance (m) L (dba) L (dba) Block 7B (East Townhouse) East Facade Block 7A (West Townhouse) South Facade Block 72 East Facade Lot 45 South Facade Lot 12 East Facade Lot 69 North Facade Lot 13 East Facade Lot 19 East Facade eq Day eq Night Highway 41 Eastbound Highway 41 Westbound Tremaine Road Northbound Tremaine Road Southbound TOTAL Tremaine Road Northbound Tremaine Road Southbound TOTAL Highway 41 Eastbound Highway 41 Westbound Tremaine Road Northbound Tremaine Road Southbound TOTAL 7 63 Tremaine Road Northbound Tremaine Road Southbound CPR Galt Subdivision TOTAL Highway 41 Eastbound Highway 41 Westbound Tremaine Road Northbound Tremaine Road Southbound TOTAL 52 5 Tremaine Road Northbound Tremaine Road Southbound TOTAL Highway 41 Eastbound Highway 41 Westbound Tremaine Road Northbound Tremaine Road Southbound TOTAL Highway 41 Eastbound Highway 41 Westbound Tremaine Road Northbound Tremaine Road Southbound TOTAL /cont d 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

20 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 16 TABLE 2 (continued) PREDICTED SOUND LEVEL OUTDOORS (1) ROAD TRAFFIC NOISE NO MITIGATION (2) (3) Location Source Distance (m) L (dba) L (dba) Block 7B (East Townhouse) Rear Yard Block 7A (West Townhouse) Rear Yard Lot 69 Rear Yard Lot 13 Rear Yard Lot 52 Rear Yard Block 74A Deck Block 74D Deck eq Day eq Night Highway 41 Eastbound Highway 41 Westbound Tremaine Road Northbound Tremaine Road Southbound TOTAL 68 Tremaine Road Northbound Tremaine Road Southbound TOTAL 58 Tremaine Road Northbound Tremaine Road Southbound TOTAL 55 Highway 41 Eastbound Highway 41 Westbound Tremaine Road Northbound Tremaine Road Southbound TOTAL 55 Tremaine Road Northbound Tremaine Road Southbound CPR Galt Subdivision TOTAL 57 Tremaine Road Northbound 5 57 Tremaine Road Southbound TOTAL 61 Tremaine Road Northbound Tremaine Road Southbound TOTAL 59 Notes: (1) Daytime and nighttime facade sound levels apply to a 7.5 m high bedroom window at Blocks 7 to 74 and 4.5 m high elsewhere. Daytime OLA sound levels apply at a receptor height of 1.5 m high. (2) See Figure 2 for receptor locations. (3) Distance indicated is from the centreline of the noise source to facade. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

21 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 17 TABLE 3 NOISE ABATEMENT MEASURES Building Air Conditioning (1) Exterior Wall (2) Exterior Warning Sound Barrier (4) Window (3) Clauses (5) Transportation Noise Sources Block 7, East Townhouse Block (7B) Mandatory Brick Veneer OBC 3. m High Sound Barrier A, B, C Block 72 Mandatory Brick Veneer OBC No A, B, C Block 74, East Condo Blocks (74A, 74B) Mandatory Brick Veneer OBC 2. m High Acoustic Screen at end units (see Figure 2) A, B, C Block 7, West Townhouse Block (7A) Blocks 71 and 73, Block 74, all other buildings (74E, 74F) Lots 13 to 18; and Lots 35 to 69 Provision for adding OBC OBC No A, B, D Block 74, second row (74C, 74D) Provision for adding OBC OBC 1.8 m High Acoustic Screen at end units (see Figure 2) A, B, D All other residential lots/units Industrial Noise Sources No special requirements OBC OBC No B Residential uses along the eastern periphery of the site Noise control measures proposed by operators of the Modatek and Karmax plants for rooftop and grade level plant sources and as part of environmental compliance requirements for existing residential uses. Slight excesses (up to 1 dba) are predicted at the southern facades of Lots 9 to 12. Two options to eliminate the excesses have been presented. See Section Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

22 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 18 NOTES TO TABLE 3 1. Central air conditioning allows windows to remain closed for noise control purposes. Provision for adding air conditioning typically takes the form of forced air ventilation system sized to accommodate the addition of central air conditioning by the occupant. 2. Masonry construction or acoustically equivalent construction to brick veneer meeting minimum STC 54. OBC - means any construction complying with the minimum non-acoustical requirements of the Ontario Building Code. 3. Upgraded means construction beyond that governed by the minimum non-acoustical requirements governed by the OBC (typically about STC 3). A sliding glass walkout door should be considered as a window and be included in the percentage of glazing. OBC - means any construction complying with the minimum non-acoustical requirements of the Ontario Building Code. 4. Earth berms, acoustic fences or combinations of berms and fences may be used, provided a minimum face density of at least 2 kg/ sq m is maintained, and the barrier is free of cracks, gaps and openings. 5. Standard example warning clauses to be registered on title and be included in Offers of Purchase and Sale and Leases on designated units: A. Purchasers are advised that despite the inclusion of noise control features in this development and within the building units, sound levels from increasing road traffic may occasionally interfere with some activities of the dwelling occupants as the sound level may exceed the noise guidelines of the Municipality and the Ministry of the Environment. B. Purchasers are advised that sounds from the area industrial uses may occasionally be audible. C. This dwelling unit has been supplied with a central air conditioning system which will allow windows and exterior doors to remain closed, thereby ensuring that the indoor sound levels are within the Municipality s and the Ministry of the Environment s noise criteria. D. This dwelling unit has been fitted with a forced air heating system and the ducting, etc. was sized to accommodate central air conditioning. Installation of central air conditioning by the occupant will allow windows and exterior doors to remain closed, thereby ensuring that the indoor sound levels are within the Municipality s and the Ministry of Environment s noise criteria. 6. Conventional roof construction meeting Ontario Building Code requirements is satisfactory in all cases. 7. All exterior doors shall be fully weatherstripped. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

23 VALCOUSTICS CANADA LTD. Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility File: Page 19 TABLE 4 PREDICTED SOUND LEVEL OUTDOORS (1) ROAD TRAFFIC NOISE WITH MITIGATION (2) (3) Location Source Distance (m) L eq Day (dba) Mitigation Block 7B (East Townhouse) Rear Yard Block 7A (West Townhouse) Rear Yard Block 74A Deck Block 74A Deck Highway 41 Eastbound Highway 41 Westbound m High Tremaine Road Northbound Sound Barrier Tremaine Road Southbound TOTAL 59 Tremaine Road Northbound m High Tremaine Road Southbound Sound Barrier at TOTAL 54 Block 7B Tremaine Road Northbound m High Tremaine Road Southbound Acoustic Screen TOTAL 55 Tremaine Road Northbound m High Tremaine Road Southbound Acoustic Screen TOTAL 54 Notes: (1) Daytime and nighttime facade sound levels apply to a 7.5 m high bedroom window at Blocks 7 to 74 and 4.5 m high elsewhere. Daytime OLA sound levels apply at a receptor height of 1.5 m high. (2) See Figure 2 for receptor locations. (3) Distance indicated is from the centreline of the noise source to facade. 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

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26 Condominium Townhouses Block Legend Point Source Line Source Excess: dba 1 dba 2 dba 3 dba 4 dba 5 dba > 5 dba STREET C STREET D Existing Residential POTENTIAL FUTURE STREET NO. 3 SIDE ROAD STREET A STREET D Existing Residential STREET B 65 STREET C Block 7A Block 7B Block 71 Block 73 STREET B 52 Block 72 Condominium Townhouses Block 74 NEW TREMAINE ROAD STREET A ROYAL PARK NORTH NEW TREMAINE ROAD HIGHWAY STREET C PHASE 2 PHASE STREET D Existing Residential 22 POTENTIAL FUTURE STREET NO. 3 SIDE ROAD STREET A 16 STREET D Existing Residential STREET C STREET B CPR GALT SUBDIVISION Block 7A Block 7B Block 71 Block 73 STREET B Block 72 NEW TREMAINE ROAD STREET A PHASE 1 PHASE 2 CENTURY GROVE Existing House MODATEK KARMAX Royal Park South Site Overview Title Karmax + Modatek Future 2 and New Hypothetical Industry Non-Impulse Scenario Excesses (dba) Project Name Milton Meadows/Royal Park South Date Project No Figure 3 J:\22\12286\4 (OMB)\Analysis\Cadna\ \ RPS.cna Date Plotted:

27 Condominium Townhouses Block Legend Point Source Line Source Excess: dbai 1 dbai 2 dbai 3 dbai 4 dbai 5 dbai > 5 dbai STREET C STREET D Existing Residential POTENTIAL FUTURE STREET NO. 3 SIDE ROAD STREET A STREET D Existing Residential STREET B 65 STREET C Block 7A Block 7B Block 71 Block 73 STREET B 52 Block 72 Condominium Townhouses Block 74 NEW TREMAINE ROAD STREET A ROYAL PARK NORTH NEW TREMAINE ROAD HIGHWAY STREET C PHASE 2 PHASE STREET D Existing Residential 22 POTENTIAL FUTURE STREET NO. 3 SIDE ROAD STREET A 16 STREET D Existing Residential STREET C STREET B CPR GALT SUBDIVISION Block 7A Block 7B Block 71 Block 73 STREET B Block 72 NEW TREMAINE ROAD STREET A PHASE 1 PHASE 2 CENTURY GROVE Existing House MODATEK KARMAX Royal Park South Site Overview Title Modatek - Impulse Future 2A Scenario Excesses (dbai) Project Name Milton Meadows/Royal Park South Date Project No Figure 4 J:\22\12286\4 (OMB)\Analysis\Cadna\ \ RPS.cna Date Plotted:

28 VALCOUSTICS CANADA LTD. File: Milton Heights Neighbourhood Royal Park South/Milton Noise Feasibility APPENDIX A ROAD AND RAIL TRAFFIC DATA CORRESPONDENCE 3 Wertheim Court, Unit 25, Richmond Hill, Ontario L4B 1B9 Tel: \ solutions@valcoustics.com

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