Invasive Species Council of British Columbia


Zebra mussels (Dreissena polymorpha) are fingernail-sized freshwater mussels which are highly invasive, with females laying one million eggs. They form dense colonies which cling to almost any surface, damaging boats, ruining beaches and clogging water pipes. Clean, drain and dry your watercraft to keep invasive mussels out of BC!

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Dave Britton, USFWS

The Invasive Species Council of BC has undertaken a pilot project designed to support BC’s freshwater sustainability through the prevention of the introduction of aquatic invasive species, particularly invasive Zebra and Quagga mussels.

From 2019 – 2021, the Canadian Council on Invasive Species and national and provincial advisors collaborated with ISCBC to develop resources, signage and a social and digital media campaign. In 2021, ISCBC received additional funding from the Department of Fisheries and Oceans to continue distributing Clean Drain Dry (CDD) signs at popular public boating, fishing and recreation sites.  

We are seeking partners to install Clean Drain Dry signage and expand CDD messaging throughout the province. CDD Signage Partnerships will promote key information to prevent the introduction and spread of aquatic invasive species in British Columbia (BC). ISCBC welcomes interested organizations to participate in this initiative dedicated to maintaining the health and sustainability of BC’s waterways.  

Please fill in the application form at the bottom of this webpage and review the Clean Drain Dry Signage Partnership Overview and Agreement Form to get started. Need additional information on jurisdiction approvals and installation tips? Check out this document! 


The main responsibilities of being a partner are: 

  • Determine appropriate location(s) for signage (where none are already in place). 
  • Obtain permissions for installation from the appropriate jurisdiction(s). 
  • Take on the responsibility and costs of installing the signs. 
  • Ensure that the installation (wooden posts vs. metal, distance from the shoreline, etc.) adheres to the rules and regulations of the site jurisdiction. 
  • Provide the Latitude and Longitude coordinates of the installed CDD signs to ISCBC 

Clean Drain Dry signs are provided to Partnering Organizations free of charge.

Partners are expected to cover the costs of installing the signs and ensuring that the installation (e.g., wooden posts vs. metal, distance from the shoreline etc.) adheres to the rules and regulations of the site jurisdiction.

The signs are currently being professionally designed with input from key stakeholders. Examples of the draft signs can be provided to potential partners by email.

We will support each partner with as many signs as needed, provided they have identified a location that does not have existing CDD signs.  

The allocation of signs will be determined following the application deadline and the review of all applications. Partners and signage quantities will be determined from all submitted applications based on priority lakes, signage needs, number of applicants, and ensuring distribution across high priority sites.

Signs will be mailed to partners once their partnership agreement is confirmed.  


The following organizations across BC are CDD Signage Partners:

  • Alberni Clayoquot Regional District  
  • BC Parks
  • Bednesti/Berman Community Association  
  • Capital Regional District
  • Central Kootenay Invasive Species Society
  • Christina Lake Stewardship Society
  • City of Campbell River
  • City of Fernie 
  • City of Port Moody 
  • City of Prince George
  • City of Richmond
  • City of Williams Lake 
  • Coal Harbour Marina
  • Coastal Invasive Species Council
  • Columbia Shuswap Invasive Species Society
  • Cultus Lake Aquatic Stewardship Strategy
  • District of Mission
  • District of Sicamous
  • District of Tumbler Ridge 
  • East Kootenay Invasive Species Council
  • Elk River Alliance 
  • Fisheries and Oceans Canada
  • Fraser Basin Council Society / Shuswap Watershed Council
  • Fraser Valley Invasive Species Society
  • Freshwater Fisheries Society of BC
  • Friends of Kootenay Lake Stewardship Society
  • Friends of Tod Creek Watershed
  • Green Lake Area Ratepayers Association
  • Heffley Lake Community Association
  • Hollyburn Sailing Club
  • Jimsmith Lake Community Association
  • Kelowna Yacht Club
  • Lac Le Jeune Conservation Association
  • Ladysmith Maritime Society
  • Lake Country Sail & Paddle
  • Lake Errock Community Association
  • Lake Windermere Ambassadors
  • Lakelse Watershed Stewards Society
  • Lakeshore Resort & Campground
  • Lazy Lake Environmental Association
  • Lillooet Regional Invasive Species Society
  • Lions Gate Marina
  • Little River Boatworld
  • McGrath Contracting Ltd.
  • Metro Vancouver Regional District
  • Ministry of Forests, Lands, Natural Resources Operations and Rural Development
  • Moberly Lake Community Association
  • Municipality of North Cowichan
  • Nature Trust BC
  • Nechako Environment and Water Stewardship Society – NEWSS
  • Nelson Paddling Club 
  • Norman lake community association
  • Old Town Bay Marina 
  • Osoyoos Cottages Marina Committee
  • Osoyoos lake Water Quality Society 
  • Parks Canada 
  • Prestige Marina 
  • Recreation Sites and Trails BC 
  • Regional District of East Kootenay 
  • Rosen Lake Ratepayers Association
  • Royal Victoria Yacht Club
  • Sea to Sky Invasive Species Council 
  • Seymour Lake Conservation Society 
  • Shawnigan Basin Society
  • Sproat Lake Community Association
  • Spruce City Wildlife Association
  • Squamish Harbour Authority
  • Sunshine Coast Regional District 
  • Thompson Nicola Regional District 
  • Tl’azt’en Nation 
  • Township of Langley 
  • Tsilhqot’in National Government  
  • Upper Nicola Indian Band
  • Vancouver Fraser Port Authority
  • Village of Harrison Hot Springs
  • Wasa Lake Land Improvement District
  • Woodbury Resort

Become a Partner

Complete the following form to express your interest in participating in the CDD Signage Partnership Program. A member of the ISCBC team will contact you shortly! 

Complete the following form to apply to be a CDD BC Pilot Signage Partner for the 2021 season. A member of the ISCBC team will be in contact regarding the status of your application.

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