Skatin-Wastewater System and Sludge Management

Project Summary:
A new community wastewater system is proposed to service the current and projected future (20 year) population of Skatin. The existing on-site septic systems are no longer meeting the community's needs. A new gravity sewage collection system, sewage pump station, forcemain, communal septic tanks, and a centralized drain field is proposed.

Legal land description for Project/Activity:
107504CLSRBC, RSBC1286, RSBC1287, 96271CLSRBC
Skookumchuck 4 (8015), Skookumchuck 4A (8016), Morteen 9 (8020)

Project Information:
The proposed community wastewater system will consist of approximately 2,000 m of buried gravity sewers, a sewage pump station, approximately 660 m of buried forcemain, twin communal septic tanks, and centralized drain fields.

Waste Generation:
Tree material will be generated from the required clearing. Any material useful for firewood or similar will be salvaged and used within the Skatin community. Brush and similar waste will be chipped on site. Some of the excavated material may not be suitable for re-use as backfill. If so, this material will be disposed within the community where fill is needed or at an approved location off site. Typical construction waste such as PVC pipe scraps, etc. will be managed by the contractor including collection, storage, and disposal.

Permits, licences or other authorizations:
A BC Hydro Compatible Use Permit will be required for the community drain fields proposed within the overhead transmission powerline right-of-way.
The wastewater system is being designed in accordance with BC Municipal Wastewater Regulation (MWR); however, MWR Registration of ground discharges on reserve is a topic under review by the BC Ministry of Environment (MoE).

Fauna and Flora:
Wildlife species at risk:
The Government of Canada Species at Risk Act (SARA) identifies nine species that are listed as endangered, threatened, or special concern species with ranges and suitable habitat in the vicinity of the project area that have the potential to occur.

Migratory birds:
Numerous migratory bird species use the Lillooet River valley during the spring and summer months.
Vegetation clearing must be conducted between August 17th and March 12th to avoid impacting migratory birds during the nesting season. In addition, a survey for raptor nests should be completed prior to clearing. Raptors and owls generally have a longer nesting season than migratory birds and clearing should be conducted between September 15th and January 31st to minimize impacts to raptors/owls during the nesting season.

Fish or fish habitat:
The Lillooet River is in proximity to the project; however, no impacts to the river are anticipated as instream/near stream works are not proposed.

Predominant vegetation on and adjacent to the site:
Much of the project alignment has been cleared of vegetation for existing roads and community infrastructure. Some tree removal will be necessary to accommodate the septic drain fields. Douglas-fir is the dominant tree species with lesser amounts of black cottonwood. Understory vegetation consists of snowberry, Douglas maple and alder.

Plant species at risk:

Traditional/Cultural Use:
Cultural, historical or archaeological sites/area:
A search of the BC Integrated Land and Resource Registry was conducted on May 25, 2022.  The search indicated that there are at least 9 known archaeological sites in proximity to the project area.  Confidential mapping of the archaeological sites can be obtained upon request.

Traditional use areas:
The Lillooet River valley was used extensively for fishing, hunting and settlement.

Note: Based on the information provided by Urban System Ltd.


Latest update

August 6, 2022 - Indigenous Services Canada (ISC) issued its Notice of Determination and determined that the project:
- is not likely to cause significant adverse environmental effects.



Indigenous Services Canada
Fasih Siddiqui, Senior Engineer
1138 Melville Street
Vancouver, British Columbia V6E 4S3
Telephone: 604-376-0802
Fax: 604-775-7149

  • Location

    • Skatin First Nation, 08015 - SKOOKUMCHUCK 4 (British Columbia)
  • Nature of Activity

    • Other, not otherwise specified
  • Assessment Status

    In progress
  • Start Date

  • Proponent

    Skatin First Nation
  • Authorities

    • Indigenous Services Canada
  • Assessment Type

    Project on federal lands
  • Reference Number


This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.


Nearby assessments

...within 200 kilometres
Date modified: