Water Stewardship Information Sources
| Citation | Urban systems Ltd. 2015. Mundy Creek Integrated Watershed Management Plan, Draft Report. Prepared for City of Coquitlam. |
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| Organization | City of Coquitlam |
| URL | https://docs.neb-one.gc.ca/ll-eng/llisapi.dll/fetch/2000/90464/90552/548311/956726/2392873/2449925/2450932/2786139/C70-3-9_-_Appendix_G--Part_1_of_8_-_A4Q0J6.pdf?nodeid=2786141&vernum=-2 |
| Abstract/Description or Keywords | An IWMP is a plan that brings together engineering, planning and environmental perspectives to create a long-term strategy for effectively managing stormwater. The IWMP for the Mundy Creek Creek watershed was conducted in four phases, as follows: Phase 1 – Reconnaissance Phase 2 – Evaluation Phase 3 – Management Models Phase 4 – Implementation The Mundy Creek watershed is located in the southwest area of Coquitlam, just north of the Port Mann Bridge. The watershed is roughly bounded by Mundy Street to the west, Como Lake Avenue to the north, Mariner Way and Riverview Crescent to the east, and Lougheed Highway to the south. A small section of the watershed extends south of Highway 1 to the Fraser River. The Mundy Creek watershed is approximately 540 hectares. Refer to Figures 2.1 and 2.2 for an overview of the watershed and the stormwater infrastructure. W atershed Vision The City of Coquitlam’s approach to integrated neighbourhood and infrastructure planning has created a secure, healthy, and livable community. Environmental habitat and natural watercourses are preserved through effective land use planning, development policies, and public outreach. Water quality is protected through the application of effective source protection and treatment. The City successfully manages flood risk through a proactive asset management and infrastructure renewal program. Despite the Mundy Creek watershed being developed and urbanized, the natural streams have good water quality and provide valuable food and nutrients to downstream watercourses. W atershed Objectives Objectives of the integrated watershed management plan include: Protect Mundy Creek, its tributaries, and the lower reaches of the system (Dawes Hill Creek, and the Coquitlam and Fraser Rivers); Preserve or improve water quality, food, and nutrients; Develop watershed specific performance targets for rainfall capture and runoff control and refine these targets over time; Strategically improve storm drainage capacity over time to reduce flood risk; Protect and enhance natural habitat along the streams and within the watershed; and Integrate the IWMP with future land-use planning and development initiatives. Key W atershed Issues The following are the key watershed issues which have been identified for the watershed: Limited conveyance capacity of existing infrastructure Presence of invasive plant species in riparian corridors Barriers to fish migration Recommendations There are currently no planned land use changes or significant redevelopment anticipated within the watershed. As such, opportunities for implementation of rainwater source controls may be limited. However, should the planning objectives of the watershed change in the future, rainwater management at the source may become a significant opportunity. As such, rainwater management objectives form an important part of the IWMP. Rainwater should be managed in a manner that is consistent with the City’s Rainwater Management Design Requirements and Guidelines (2009). The requirements apply to all subdivision and building permit applications in the Mundy Creek Watershed. The following capture criteria applies: Capture 34mm of rainfall (50% of the 2-year 24 hour event); retain and infiltrate to the greatest extent possible. Maximum release rate should limit the post-development 2-year peak flow to 50% of the 2-year pre-development peak flow. The design of source control facilities should be sized based on the effective impervious area (EIA) of the development lot. |
| Information Type | report |
| Regional Watershed | Lower Fraser |
| Sub-watershed if known | Mundy Creek |
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| Project status | complete |
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