Municipal Stormwater Discharge Criteria - 

Metro Vancouver and Fraser Valley

Last Update January 25, 2020

City of Abbotsford

Turbidity: < 25 NTU during normal weather conditions (< 25 mm of rain in the 24 hours prior), or < 100 NTU during significant rainfall events (≥  25 mm of rain in the 24 hours prior).

City of Burnaby

pH: 6.0 - 8.5

TSS: < 25 mg/L above background for normal dry day and < 75 mg/L above background during rain or storm events.

Turbidity: 49 NTU trigger value (sampling will be submitted for laboratory analysis of TSS). 

Temperature: <18 °C.

Sediment Control Notes
Sediment Control System Permit Applications

Watercourse Bylaw

City of Coquitlam

pH: 6.5 - 8.0

Turbidity: < 25 NTU or < 100 NTU: where a Significant Rainfall Event has occurred within the preceding 24 hours

Stream and Drainage System Protection Bylaw
No. 4403, 2013

City of Langley

TSS: < 75 mg/L

Watercourse Protection Bylaw No. 2518

Township of Langley

Turbidity: < 25 NTU, or < 100 NTU, within 24 hours of a Significant Rainfall Event, or as indicated by current Fisheries and Oceans standards

Erosion & Sediment Control Bylaw No. 4381 - 2006

City of Maple Ridge

pH: 6.0 - 9.0

TSS: < 25 mg/L during dry weather and less than 75 mg/L during the wet season

Turbidity:  < 20 NTU

A bylaw to protect watercourses in Maple Ridge Bylaw No. 6410 - 2006

City of New Westminster

pH: < 5.5 - 10.5

TSS: < 75 mg/L 

Turbidity: ≤ 65 NTU

A Guide to Erosion & Sediment Control

Sewerage and Drainage Regulation Bylaw No. 7746, 2015

City of North Vancouver

pH: 6.5 - 8.0

TSS: < 25 mg/L during May - September or

< 75 mg/during October - April

ESC Requirements: Large Project

District of North Vancouver

TSS: < 25 mg/L during May - September or

< 75 mg/L during October - April

Environment Protection and Preservation Bylaw No. 6515 -1993

City of Port Moody

pH: 6.5 - 8.0

TSS: < 75 mg/L above background 

Stream and Drainage System Protection Bylaw No. 2470 - 2001

City of Surrey

TSS: < 75mg/L

Turbidity: 60 NTU trigger value (sampling will be submitted for laboratory analysis of TSS).

City of Vancouver

pH: 6.0 - 9.0

TSS: < 75mg/L 

NTU: 45 NTU trigger value (sampling will be submitted for laboratory analysis of TSS).

City of West Vancouver

pH: pH of receiving waters cannot be affected by more than 3.0 units above or below background

TSS: < 25 mg/L above background during May - September or < 75 mg/L above background during October - April

 

Watercourse Protection Bylaw No. 4364 - 2005

Additional Information: 

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