Enbridge Pipelines Inc. December 2006 Edmonton South Terminal Development 4685 APPENDIX B NOISE IMPACT ASSESSMENT aci Acoustical Consultants Inc. Suite 107, 9920-63Ave Edmonton, Alberta, Canada T6E 0G9 Phone: (780) 414-6373, Fax: (780) 414-6376 www.aciacoustical.com Environmental Noise Impact Assessment For Edmonton South Terminal Prepared for: Enbridge Pipelines Inc. Prepared by: S. Bilawchuk, M.Sc., P.Eng. aci Acoustical Consultants Inc. Edmonton, Alberta APEGGA Permit to Practice #P7735 aci Project #: 06-066 December 12, 2006 Executive Summary aci Acoustical Consultants Inc., of Edmonton AB, was retained by Enbridge Pipelines Inc. (Enbridge) to conduct an environmental noise impact assessment (NIA) for the proposed new addition forming the Edmonton South Terminal. The purpose of the work was to conduct baseline noise monitorings, generate a computer noise model of the existing site, and determine the relative impact of the proposed addition. The results of the baseline noise monitorings indicated a noise climate at the Woodridge Farms location that was dominated by traffic on Hwy. 216, Baseline Road, and local Sherwood Park traffic. The noise climate at the Rundle Heights location was dominated by the Esso Strathcona Refinery to the south. At both locations, the Enbridge Terminal was completely inaudible at all times of the noise monitoring and did not contribute to the measured sound levels in any way. Baseline Noise Monitoring Results Leq24* (dBA) LeqDay* (dBA) LeqNight (dBA) Woodridge Farms 44.5 45.2 43.0 Rundle Heights 48.1 48.2 48.0 *Not a full 15 day-time hours were monitored The noise modeling of the existing Terminal resulted in noise levels which were very low and well below the Permissible Sound Levels for either nearby residential area. Addition of the proposed tanks and booster pumps had a negligible effect on the noise levels, increasing the noise by only 0.3 dBA at the Rundle Heights receptor and 2.4 dBA at the Woodridge Farms receptor. In addition, the noise levels associated with traffic on the surrounding roadways as well as the other industrial and energy facilities closer to both residential areas contributed significantly more to the local noise climate than the existing Terminal or proposed South Terminal. As such, it is highly likely that noise from the existing Terminal and South Terminal would be completely inaudible at both receptor locations. Proposed Night-Time Noise Levels Associated With Existing and South Terminals L Night 1 Relative PSL-Night eq Compliant (dBA) Increase (dBA) (dBA) Woodridge Farms Receptor 29.5 + 2.4 46.0 Yes Rundle Heights Receptor 23.3 + 0.3 46.0 Yes 1 The term Leq represents the energy equivalent sound level. This is a measure of the equivalent sound level for a specified period of time accounting for fluctuations. December 12, 2006 Enbridge, Edmonton South Terminal Project #06-066 Table of Contents 1.0 Introduction ..................................................................................................................................... 1 2.0 Description ...................................................................................................................................... 1 3.0 Measurement & Modeling Methods................................................................................................ 3 3.1. Environmental Noise Monitorings .............................................................................................. 3 3.2. Computer Noise Modeling .......................................................................................................... 4 4.0 Permissible Sound Levels............................................................................................................... 6 4.1. City of Edmonton Noise Bylaw No. 7255 .................................................................................. 6 4.2. Alberta Energy and Utilities Board ID99-8 ................................................................................ 7 4.3. Summary of Noise Criteria.......................................................................................................... 7 5.0 Results and Discussion.................................................................................................................... 8 5.1. Environmental Noise Monitorings .............................................................................................. 8 5.2. Weather Conditions..................................................................................................................... 9 5.3. Baseline Case Noise Modeling.................................................................................................. 10 5.4. Proposed Case Noise Modeling ................................................................................................ 10 6.0 Conclusion..................................................................................................................................... 11 7.0 References ..................................................................................................................................... 12 Appendix I MEASUREMENT EQUIPMENT USED..................................................................... 18 Appendix II THE ASSESSMENT OF ENVIRONMENTAL NOISE (GENERAL) ....................... 26 Appendix III SOUND LEVELS OF FAMILIAR NOISE SOURCES .............................................. 38 Appendix IV NOISE MODELING PARAMETERS ........................................................................ 40 Appendix V WEATHER DATA....................................................................................................... 41 Appendix VI NOISE IMPACT ASSESSMENT................................................................................ 43 List of Tables Table 1. Basic Night-Time Sound Levels (as per EUB ID99-8)................................................................ 7 Table 2. Baseline Noise Monitoring Results.............................................................................................. 8 Table 3. Baseline Noise Monitoring Enbridge Terminal Operations......................................................... 9 Table 4. Baseline Night-Time Noise Levels Associated With Existing Terminal................................... 10 Table 5. Proposed Night-Time Noise Levels Associated With Existing and South Terminals............... 10 List of Figures Figure 1. Study Area ................................................................................................................................ 13 Figure 2. Woodridge Farms Noise and Weather Monitors ...................................................................... 14 Figure 3. Rundle Heights Noise Monitor ................................................................................................. 14 Figure 4. Broadband A-Weighted Leq Noise Monitor Results at Woodridge Farms ............................... 15 Figure 5. Broadband A-Weighted Leq Noise Monitor Results at Rundle Heights ................................... 15 Figure 6. Baseline Night-time Noise Levels ............................................................................................ 16 Figure 7. Proposed Night-time Noise Levels ........................................................................................... 17 i December 12, 2006 Enbridge, Edmonton South Terminal Project #06-066 1.0 Introduction aci Acoustical Consultants Inc., of Edmonton AB, was retained by Enbridge Pipelines Inc. (Enbridge) to conduct an environmental noise impact assessment (NIA) for the proposed new addition forming the Edmonton South Terminal. The purpose of the work was to conduct baseline noise monitorings, generate a computer noise model of the existing site, and determine the relative impact of the proposed addition. 2.0 Description The existing Enbridge Edmonton Terminal is located east of Edmonton in Strathcona County, north of Baseline Road and west of Hwy. 216, as shown in Fig. 1. The Terminal covers approximately one quarter-section of land and contains several large storage tanks, large electric motor driven pumps (typically located within buildings), smaller transfer pumps, and various valves and other small equipment associated with pipeline operations. The Terminal is located essentially in an industrial area known as Refinery Row. To the north of the Terminal is a petro-chemical facility with tank storage. Immediately to the west of the Terminal is a Kinder Morgan facility with additional industrial facilities further to the west (Including the ESSO Strathcona Refinery) and to the southwest. Immediately to the south are two currently un-developed Sections of land. Further to the south is an Alberta Enviro Fuels Inc. facility along with the Shell Sherwood Terminal. To the southeast is residential development within Sherwood Park. Finally, to the east and northeast is commercial and light industrial development within Sherwood Park. As mentioned previously, the major roadways in the area include Hwy. 216 and Baseline Road. In addition, Hwy. 16 is located approximately 3.2km north of Baseline Road and the Sherwood Park Freeway is located approximately 3.2km south of Baseline Road. All of these routes are heavily traveled with a considerable volume of heavy trucks. As such, the road noise is generally the dominant noise source in the area. 1 December 12, 2006 Enbridge, Edmonton South Terminal Project #06-066 The nearest residents to the Terminal include the area of Woodbridge Farms in Sherwood Park (approximately 1800m