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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentWaste Management IndustryS-ChanfVerband Abwasserreinigung Oberengadin (ARO)
Verband Abwasserreinigung Oberengadin (ARO) Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Verband Abwasserreinigung Oberengadin (ARO) is a municipal association responsible for collecting and treating the wastewater of its member municipalities and for operating the regional wastewater treatment plant ARA Oberengadin. The association may assume additional wastewater-treatment tasks and operates a carcass collection facility for its members.

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Offering

Products & services

Industry:Waste Management Industry
✓ Offered3
Wastewater treatment
Mechanical treatment, SBR biology and sludge treatment at the regional ARA Oberengadin; treated wastewater is pumped into the EKW canal.
Operation of the ARA Oberengadin
Operating organisation and procedures, plant management, staff, operational safety, and fully automated process control of the facility.
Receipt of animal carcasses and oil separator waste
Carcass collection point and receiving point for oil separator waste (MAG) on the ARA premises; the carcass collection point is operated by ARO, while the MAG part is set up for the canton.
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3.8/5

Verband Abwasserreinigung Oberengadin (ARO)

Trust & reputation

ranQ Trust Score of Verband Abwasserreinigung Oberengadin (ARO): 3.8 out of 5.0

Trust Score3.8/ 5.0

High

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Data basis 96% · As of October 2026

Verband Abwasserreinigung Oberengadin (ARO) scores 56.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.73.124%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.35.310%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Verband Abwasserreinigung Oberengadin (ARO) scores 66.9 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.58.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Verband Abwasserreinigung Oberengadin (ARO) scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
Verband Abwasserreinigung Oberengadin (ARO) scores 37.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Verband Abwasserreinigung Oberengadin (ARO) reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Comparisons

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Location

Bos-chetta Plauna 16
7525 S-Chanf

At a glance

Legal form
Public sector institution
UID
CHE-320.548.314
Founded
2022 · 4 years
Last commercial register change
March 22, 2022
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.97.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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