Water Management

Watermain Replacement

Find out how we ensure Delta's watermains run efficiently and our residents have access to safe, clean drinking water. Review our Watermain Construction process for details.

Three Greater Vancouver Water District reservoirs (Capilano, Seymour and Coquitlam) provide 95 per cent of the water used in Delta. The remaining five per cent comes from Delta's three wells located near Watershed Park.

Delta's water system service covers an area of approximately 18,000 hectares, which includes North Delta, Tsawwassen, Ladner, Tilbury and Annacis Island. The water system provides safe, high quality drinking water to over 100,000 residents and businesses through a 580 kilometer distribution network, 40 pressure reducing valve stations and two pump stations.

The Health of Our Water System

We take the health of our water system, and the public's trust in it, seriously. Our testing regimen meets and often exceeds the Water Monitoring Protocol set out by the provincial government.

Annual Water Quality Report

The focus of our water utility is to provide the highest quality drinking water in a sufficient quantity to meet the demands of our community.

2016 Delta Water Quality Report (10.1 MB)

Sewer, Drainage, Irrigation and Dikes

Delta operates and maintains hundreds of kilometres of storm and sanitary sewer mains, as well as drainage ditches, irrigation channels and several pump stations.

A dike system surrounds the lowlands of Delta, protecting Ladner, the farmlands and other low-lying areas. The elevation of the Delta lowlands is between 1m and 1.5m, while high tides can be 2.0m.

Integrated Liquid Waste & Resource Management Plan (ILWRMP)

Metro Vancouver is responsible for managing wastewater produced in the Lower Mainland. The Integrated Liquid Waste & Resource Management Plan (ILWRMP) (2.1 MB), approved by the regional Board and the provincial government, directs how our wastewater is managed.

Have you noticed a problem with your water?

See Common Water & Sewer Concerns for assistance. You can report the problem online or call 604-946-4141.

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