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Vidange, transport et disposition des boues des étangs aérés numéros 2 et 3 de la station d'épuration des eaux usées

Source: SEAO

Cantons-Unis de Stoneham-et-Tewkesbury · Public call for tenders · closed May 19, 2022 at 5:30 a.m., Quebec time

Facts

Published
April 28, 2022
Time to award
24 days after closingmedian, all notices: 26 d (over 119,539 notices)
how it's calculated — Time to award

Time to award — where the number comes from

The calculation
Calendar days between closing (May 19, 2022) and the first award date published for this notice (June 12, 2022): 24 days.
What goes in
For this notice, every dated award counts, whatever its status, and the earliest date is kept. The median across all notices only keeps the notices whose earliest dated winning award, neither cancelled nor unsuccessful, falls on or after the closing day — over 119,539 notices.
Distribution
Source
SEAO — Quebec open data · CC-BY 4.0 · data up to date as of October 4, 2026 · link to this detail
Contract nature
Services
Place of performance
Capitale-Nationale
Documented stages
Contract termination
Time to submit
21 days · computed between publication and closing
how it's calculated — Time to submit

Time to submit — where the number comes from

The calculation
Days between publication (April 28, 2022) and closing (May 19, 2022), rounded to the day: 21 days.
What goes in
The source publishes no duration for this notice: the number comes from its two dates. A gap of less than half a day, or a closing before publication, gives no window.
Source
SEAO — Quebec open data · CC-BY 4.0 · data up to date as of October 4, 2026 · link to this detail
Value
— not declared
Reference
Notice no. 1598257
UNSPSC
76121603Élimination des boues
SEAO category
S5 — Services environnementaux

SEAO, Données Québec · data as of October 4, 2026

Description

100%

APPEL D’OFFRES

VIDANGE, TRANSPORT ET DISPOSITION DES BOUES DES ÉTANGS AÉRÉS NUMÉROS 2 ET 3 DE LA STATION D’ÉPURATION DES EAUX USÉES La Municipalité requiert des soumissions pour la vidange, le transport et la disposition des boues des étangs aérés numéros 2 et 3 de la station d’épuration des eaux usées selon les exigences du devis préparé à cet effet.

Read more — 1,228 charactersShow less

Les documents de soumission seront disponibles sur le site de Système électronique d’appel d’offres (SÉAO) au www.seao.ca au coût établi par le SÉAO. Les soumissions seront reçues à la Municipalité des cantons unis de Stoneham-et-Tewkesbury, au 205, chemin de la Grande-Ligne, Stoneham-et-Tewkesbury (Québec) G3C 0X7, avant 9 h 30, le jeudi 19 mai 2022 et ouvertes publiquement immédiatement après l’heure de clôture des soumissions. Le présent appel d’offres est assujetti au règlement relatif à la gestion contractuelle de la Municipalité des cantons unis de Stoneham-et-Tewkesbury. L’offre doit être présentée par un fournisseur ayant un établissement au Québec ou dans un des territoires visés par les accords applicables. La Municipalité des cantons unis de Stoneham-et-Tewkesbury ne s’engage à accepter ni la plus basse ni aucune des soumissions reçues. Elle se réserve également le droit de retrancher certaines parties du contrat sans encourir aucun préjudice de la part du soumissionnaire et elle se dégage de toutes responsabilités quant aux frais encourus par le soumissionnaire dans la préparation de sa soumission. Stoneham-et-Tewkesbury, le 28 avril 2022 Louis Desrosiers, directeur général et secrétaire-trésorier

SEAO, Données Québec · data as of October 4, 2026

Precedents — this code at this buyer

Where do these figures come from?
reserved · subscriptionViews used up for this month: this block opens with an account.

Bidders

Bidders
CompanyAmount submittedEligibility
ENVIRONNEMENT TERRA VESTRA INC.$308,650declaredCompliant
EXCENT ENVIRONNEMENT INC.$437,825declaredCompliant
GFL SERVICES ENVIRONNEMENTAUX$407,609declaredCompliant
LES CONSULTANTS MARIO COSSETTE INC.amount retained$292,023declaredCompliant

Bids range from $292,023 to $437,825 — a 49.9% spread between the lowest and the highest.The table is not sorted by amount: the source publishes no ranking, and we do not manufacture one.

4 bids received · 4 of 4 amounts declared · 4 bidders declared by the source

SEAO, Données Québec · data as of October 4, 2026

The price to beat

88.0%code medianover 265 noticeshow it's calculated

Code median — where the number comes from — where the number comes from

The calculation
In Élimination des boues (76121603), the lowest sits at 88.0% on median (quartiles 78.8 – 94.4%, over 265 public tenders).
What goes in
The amounts bid on this notice that are above zero and published in the source's unit “1”: two different units do not compare. At least two distinct amounts are needed.
Source
SEAO — Quebec open data · CC-BY 4.0 · data up to date as of October 4, 2026 · link to this detail
87.2%gap to the marketover 108,521 noticeshow it's calculated

Gap to the market — where the number comes from — where the number comes from

The calculation
Elsewhere in the market, the lowest sits at 87.2% on median (quartiles 74.8 – 94.4%, over 108,521 public tenders).
What goes in
The market reference applies the same rule to each notice, then takes the median of these percentages over 108,521 notices.
Source
SEAO — Quebec open data · CC-BY 4.0 · data up to date as of October 4, 2026 · link to this detail
how it's calculated — The price to beat

The price to beat — where the number comes from

The calculation
$292,023 (the lowest) ÷ $358,130 (the median of the 4 bids) = 81.5%
What goes in
The amounts bid on this notice that are above zero and published in the source's unit “1”: two different units do not compare. At least two distinct amounts are needed. The market reference applies the same rule to each notice, then takes the median of these percentages over 108,521 notices.
Breakdown
Lowest
$292,023
Median of offers
$358,130
Highest
$437,825
The lowest bid sits at 81.5% of the median of the amounts received.These are submitted amounts, not the signed contract.A public tender in this code receives 2 offers on median (quartiles 2 – 4, over 368 public tenders). 80 of them — 21.7% — received a single offer.
Source
SEAO — Quebec open data · CC-BY 4.0 · data up to date as of October 4, 2026 · link to this detail

SEAO, Données Québec · data as of October 4, 2026

Contracting authority history — most recent awards

Where do these figures come from?
reserved · subscriptionViews used up for this month: this block opens with an account. Free with an account

Award

Winners and awarded amounts
YearWinnerValue
2022LES CONSULTANTS MARIO COSSETTE INC.$292,023declared
Signed contracts and their end dates
ContractSignedEnd dateContract amount
2706978The signed contract falls below the awarded amount by $34,936 — −12.0%. A gap is a fact, not a judgement: across 121,996 comparable pairs it exists in 62% of cases, and half of them are below the awarded amount.2022September 20, 2023$257,088declared

SEAO, Données Québec · data as of October 4, 2026

Documents

the source is silent — No document in the open dataset · SEAO notice

Similar open notices

how it's counted — Similar notices — how the list is built

Similar notices — how the list is built — where the number comes from

The calculation
Same UNSPSC classification (76121603), and still open.
What goes in
Other tender notices still open under the same code, whatever the organisation. This selection of still-open notices covers SEAO. Unverified CanadaBuys deadlines are excluded; federal notices remain available in search.
Source
SEAO — Quebec open data · CC-BY 4.0 · data up to date as of October 4, 2026 · link to this detail

SEAO, Données Québec · data as of October 4, 2026

Cite this page
Permalink
https://www.laureo.ca/en/avis/ocds-ec9k95-1598257
Citation
Lauréo, “Vidange, transport et disposition des boues des étangs aérés numéros 2 et 3 de la station d'épuration des eaux usées”, Cantons-Unis de Stoneham-et-Tewkesbury, notice no. 1598257, data as of October 4, 2026, from SEAO / Données Québec (CC-BY 4.0). https://www.laureo.ca/en/avis/ocds-ec9k95-1598257
Reuse
Figures and text reusable with attribution. SEAO documents are never redistributed: they are linked to their official source.
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Vidange, transport et disposition des boues des étangs aérés numéros 2 et 3 de la station d'épuration des eaux usées — Cantons-Unis de Stoneham-et-Tewkesbury — Lauréo