Oil and chemical spill tracking

Spills of oil and chemicals into freshwater and ocean environments have killed fish, degraded habitat, and led to closures of commercial, recreational, and Indigenous fisheries. Raincoast’s Healthy Waters Program is positioned to collect data at the scene of a spill and collaborate with various organizations and First Nations to understand the impact of a spill. 

Tracker will host a number of rugged analytical instruments, and enable the measurement of several contaminants in the field, including coliform bacteria, nutrients, metals, pesticides, and tracers of wastewater effluent.
Photo by Peter Ross.
Two sockeye salmon swimming in a river.
Photo by Fernando Lessa.

Spills happen

Spills originate from all manner of accidents. The 2005 train derailment that spilled caustic soda into the Cheakamus River that killed 500,000 fish, The 2015 spill of 3,000 L of Bunker C oil from the MV Marathassa into English Bay. The 2020 fire aboard the MV ZIM Kingston in Juan de Fuca Strait that resulted in the loss of 104 mixed cargo shipping containers into the ocean. Each and every accident is bad news, and threatens the health of fish and whales, and contributes to the degradation of their habitats.

Being prepared is key

Given the sudden and unpredictable nature of oil and chemical spills, our oil and chemical spill response work entails being agile and available for support to First Nations, government agencies, and industry during a major spill. We are developing science protocols, and acquiring sampling kits, field equipment, and safety gear, and are poised to deploy our team to the scene of a spill. 

Being prepared on all fronts is key to limiting the damage from a spill. We recognize that with spills, it’s not a matter of if, but when. Research and monitoring to confirm the origin of the spill, track the fate of the spilled product, and monitor the recovery of ecosystem components routinely fails to be a priority. We will deploy expert capacity where and when needed, and work to prevent harm to valued ecosystem components.

Two people working together to collect water samples in a farm field with the mountains in the background.
Photo by Alex Harris.
https://www.raincoast.org/reports/flood

Semá:th X̱ó:tsa (Sumas Lake) Floods of 2021

The catastrophic floods of late 2021 in southern British Columbia (Canada) and neighbouring Washington State (USA) destroyed homes, farms and businesses, with excess water spilling debris, animal carcasses and diesel fuel into historically productive fish habitat. 

We assembled a team to assess water quality in the former Semá:th X̱ó:tsa (Sumas Lake) area of the Fraser Valley over a seven-week period after the floods. We collected water samples from 11 surface water sites and four groundwater sites for comprehensive contaminant analysis and a subsequent risk-based evaluation. We measured 379 analytes (chemical components and bacteria), including 262 anthropogenic contaminants. We examined excess nutrients, metals, fecal coliform, hydrocarbons, pesticides, pharmaceuticals, and personal care products, perfluorinated compounds, sucralose, and tire-related chemicals.

Recent articles

A starflower with 4 green leaves and a small purple flower.

Worksheet: Junior researchers in the forest

Do you want to know more about forest ecosystems, but you’re not sure where to start? This worksheet will help guide you through making observations in the forest.
Thermal imaging report cover floats on top of an underwater scene in the Coldwater River with tiny salmon filling the space in green light.

Mapping thermal refuges: Identifying critical cooling centres for salmon in the Coldwater River

The salmon populations in the Nicola watershed are among the most endangered in BC. The Coldwater River provides critical spawning and rearing habitat for Interior Fraser Coho, Lower Thompson Chinook, and Interior Fraser Steelhead.
A Southern Resident killer whale swims just under the ocean's surface, about to break through for a breath.

After dark with the Southern Residents

Overnight hydrophone recordings capture killer whales navigating through a noisy ocean.
A container ship looms loud and large and dangerously close to killer whales.

Decoding killer whale communication is key to defending their home

An increasingly noisy ocean is threatening the survival of this iconic BC species – field biologists and computer scientists are joining forces to defend their voice.
A pod Southern Resident killer whales breaching the surface with a spray of water.

Guide to public comments on proposed regulations to protect Southern Resident killer whales

Take action and support the 1,000m minimum approach distance.
A Southern Resident killer whale smashes its tail down on the water.

Letter in support of the proposed increase of a 1,000m approach distance for Southern Resident killer whales

The Government of Canada is seeking public feedback on proposed amendments to the Marine Mammal Regulations that would strengthen protections for endangered Southern Resident killer whales.  The following is the formal submission by Raincoast. Letter: March 19, 2026 To: Marine Mammal Regulations inbox dfo [dot] ncrfmmmrconsultation-consultationrmmgprcn [dot] mpo [at] dfo-mpo [dot] gc [dot] ca. Heather…
Building community in nature

Building community in nature

A field trip with impact and community driven women of Vancouver.
Killer whale dorsal fin sticking out of the water making a reflection on the calm water.

Help us give killer whales a voice

We have a little over three months to raise $77,500 for our marine expedition to take place!