Water Stewardship Information Sources
| Citation | Millard, TH. 2013. Hatzic Region Hydrology and Watershed Stability Assessment. BC Ministry of Forests, Lands and Natural Resource Operations. |
|---|---|
| Organization | FLNRO |
| URL | https://www.for.gov.bc.ca/ftp/dck/external/!publish/Hydrology_Terrain%20Stability/Hatzic/Reports/Hatzic%20Region%20watershed%20assessment.pdf |
| Abstract/Description or Keywords | This report examines the hydrology and watershed stability of the Hatzic region in the Chilliwack Forest District. The name Hatzic refers to four areas within this report. The “Hatzic region” assessment area is shown in Figure 1, and includes the “Hatzic Lake” watershed, the Cascade watershed, and the Marino watershed. The Hatzic Lake watershed is composed of three major sub‐basins: “Hatzic Slough”, Chilqua, and Draper, plus some residual area adjacent to Hatzic Lake. The “Hatzic Prairie” is the name of a groundwater aquifer. Landslides and flooding are significant issues in the Hatzic region. The area requires emergency response to landslides and flooding, and there are significant financial costs for longer‐term hazard management practices such as channel diking and sediment excavation. Flooding and slope stability issues occur in part because of the natural conditions within the region, but clearly land use practices have affected the number of hazardous events as well as the extent of the damage. Several consulting and assessment reports are available regarding hydrology, sediment and landslide hazard issues within the Hatzic region and provide a detailed background regarding the Hatzic region. The report by Rob Hudson (1997) specifically addresses forest management issues within the region. This report is primarily based on extensive aerial photograph interpretation, maps, and previously written report information. Hydrologic recovery calculations are based on forest cover data provided by Mike Smith (Geomatics Analyst, Chilliwack Forest District). Lucy Stad and I examined valley bottom areas on February 15, 2011. Access was not possible to higher elevation areas. I have done field work in the woodlot, along the top of Durieu Ridge and in neighbouring drainages, so I am familiar with the area. |
| Information Type | report |
| Regional Watershed | Lower Fraser |
| Sub-watershed if known | Hatzic Creek |
| Aquifer # | |
| Comments | |
| Project status | complete |
| Contact Name | Tom Millard |
| Contact Email | [email protected] |