Stormwater, Sewers, and Water Supply

Stormwater Management

Stormwater refers to rainwater as well as water from washing cars, overwatering lawns, and water from other sources. It runs into storm drains in roads that lead directly into lakes, rivers, and streams. Stormwater is not treated, therefore, can carry pollution directly into our natural water resources.

Stormwater management is the mechanism for controlling stormwater runoff for the purposes of reducing downstream erosion, water quality degradation, and flooding and mitigating the adverse effects of changes in land use on the aquatic environment.

The Township is responsible for maintaining stormwater infrastructure including culverts, stormwater ponds, creeks, drainages, and the storm sewer system on Township property or within a Township right-of-way. This may include removing accumulated sediment and obstructions and replacing worn culverts. Stormwater concerns that occur on private property are the responsibility of the property owner(s).

The Township is also responsible for the appropriate sizing of stormwater infrastructure, including culverts, bridges, storm sewers, and ditches and is involved in stormwater management when new communities are designed. For example, many innovative features were incorporated into the design of the Routley neighbourhood. Bioswales and infiltration pits protect downstream fish habitat by allowing all of the water that falls onto each lot to filter into the ground rather than flowing directly into nearby streams, carrying pollutants and causing erosion.

For more information, download the Routley Brochure 0.57 MB PDF

Reports of interest include:
Yorkson Report   7.54 MB PDF

Salmon River Report
Main Body and Appendix A                         12.42 MB PDF
Development Options, Figures 12-15       18.93 MB PDF

Real time hydrometric data
For Langley, the WSC Gauge of most interest is the Fraser River at Mission Gauge.

Archived hydrometric data

Fraser River floodplain mapping for the Lower Mainland can be found at: http://www.env.gov.bc.ca/wat/flood/pdfs_word/sector_sw.pdf

Langley's Municipal Water Supply

To request Water System Design Flow and Pressure Information send your request to This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Sewage Systems

Where does the water go when it heads down your sink drain or is flushed down your toilet? The answer depends on whether or not you're serviced by the municipal sewage system.

For people on private septic systems, wastewater empties into a below-ground septic tank that stores the majority of the waste until it is pumped out, while slowly treating and cleaning the remainder until it filters back into the water table.

Septic Systems

Municipal Sewage System Map (1.88 mb PDF file)

For more information:

GVRD Sewage Treatment

Utility Rates

Sewer
Residential: $290.62 yearly flat rate
Other: $0.82 per cubic metre with a minimum of $145.31 semi-annually

Water Supply
Residential: $302.16 yearly flat rate
Other: $0.436 per cubic metre with a minimum of $151.08 semi-annually