Liquid waste collection or processing or disposal: standing offers & supply arrangements

Full award history for this category → · Expiring contracts → · ⬇ Export CSV

Active agreements (per holder)
5
Distinct holders
5
Agreement numbers
5
Expiring in 12 months
2

What the numbers say

  • Clean Harbors Energy and Industrial holds the most active agreements here (1).
  • 2 agreements expire in the next 12 months; replacement solicitations are often posted on CanadaBuys before an agreement lapses, but that is not guaranteed.

Holders with the most active agreements

HolderAgreementsTypesLatest expiry
Clean Harbors Energy and Industrial1RISO2028-09-30
Stennick General Contracting Ltd1RISO2027-03-31
Urgence Marine Environnement Inc.1RISO2028-09-30
Walker Environmental Group1RISO2027-11-30
William Sons1RISO2027-07-31

By department (end user)

DepartmentAgreements
National Defence3

Expiring in the next 12 months

AgreementTypeHolderAwardedExpires
W6898-250752 – RISO - Dry Sludge Disposal – CFB Gagetown
CW2393672 · 76121502 - Liquid waste collection or processing or disposal; 76121603 - Sludge disposal;
RISOStennick General Contracting Ltd2025-03-142027-03-31
W6889-240171 Clean Catch Basins Petawawa
CW2361085 · 76121502 - Liquid waste collection or processing or disposal; 76120000 - Refuse disposal a
RISOWilliam Sons2024-08-152027-07-31

Most recently awarded active agreements

AgreementTypeHolderForAwardedExpires
FC010-25CL01 - SO - Pumping and disposal services for oily water, waste oil and fuel - Urgence Marine Environnement
CW2408807 · 25111500 - Commercial marine craft; 76121502 - Liquid waste collection or processing or di
RISOUrgence Marine Environnement Inc.Canadian Coast Guard2025-10-142028-09-30
FC010-25CL01 - SO - Pumping and disposal services for oily water, waste oil and fuel - Clean Harbors Energy and
CW2422293 · 25111500 - Commercial marine craft; 76121502 - Liquid waste collection or processing or di
RISOClean Harbors Energy and IndustrialCanadian Coast Guard2025-10-142028-09-30
W6898-250752 – RISO - Dry Sludge Disposal – CFB Gagetown
CW2393672 · 76121502 - Liquid waste collection or processing or disposal; 76121603 - Sludge disposal;
RISOStennick General Contracting LtdDepartment of National Defence2025-03-142027-03-31
W6889-240171 Clean Catch Basins Petawawa
CW2361085 · 76121502 - Liquid waste collection or processing or disposal; 76120000 - Refuse disposal a
RISOWilliam SonsDepartment of National Defence2024-08-152027-07-31
RISO Grease Trap Cleaning Services (W6854-230279)
CW2442350 · 76000000 - Industrial Cleaning Services; 76120000 - Refuse disposal and treatment; 7612150
RISOWalker Environmental GroupDepartment of National Defence2022-12-052027-11-30

Method & sources

Source: the Government of Canada "Standing Offers and Supply Arrangements" open dataset (Open Government Licence – Canada), file published 2026-10-15, refreshed weekly. One row per agreement number and holder; delivery regions are merged. Holders are linked to company pages by exact name match, so some links may be missing. Listing here is not an endorsement by the Government of Canada.

Dataset on open.canada.ca · Data dictionary (agreement types)

Agreement types explained

SA — Supply arrangement
A pre-qualified pool of suppliers. Holding one does not guarantee work: departments run a second, limited competition among qualified suppliers before awarding a contract.
NMSO — National Master Standing Offer
An offer to supply goods or services at set prices and terms, which any federal department across Canada can use by issuing call-ups. No contract exists until a call-up is placed.
RMSO — Regional Master Standing Offer
Like a national master standing offer, but limited to one region; any department in that region may issue call-ups.
NISO — National Individual Standing Offer
A standing offer set up for one identified department's use across Canada.
RISO — Regional Individual Standing Offer
A standing offer set up for one identified department's use in one region.
DISO — Departmental Individual Standing Offer
A standing offer a department set up under its own authority for its own needs.