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DirectoryEnergy & EnvironmentWater SupplyBuchs AgEniwa Wasser AG
Eniwa Wasser AG Logo
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Eniwa Wasser AG

Summary

About the company

Eniwa Wasser AG operates drinking-water services and feeds untreated groundwater into the distribution network. The company regularly monitors water quality, manages storage reservoirs and provides water connection and maintenance services for house connections, public fountains and hydrants.

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Products & services

Industry:Water Supply
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Drinking Water
Drinking water from regional groundwater, fed into the pipeline network without further treatment; supplying Aarau, Buchs, Erlinsbach, Küttigen, Oberentfelden, Schönenwerd/Gretzenbach, Suhr and Unterentfelden.
Water Connections
Planning, new construction, renewal and decommissioning of water connections; advice and execution of connection projects from planning through to implementation.
Water Quality and Measurement Data
Monitoring of drinking water quality, regular samples and publication of current measurement data; monitoring of the intakes in collaboration with the cantonal Office for Consumer Protection.
Water Service Area
Supplying the company's own service area with drinking water, as well as partial and emergency supply; supplying Aarau, Buchs, Eppenberg/Wöschnau SO, Erlinsbach AG, Küttigen, Oberentfelden, Schönenwerd/Gretzenbach SO, Suhr and Unterentfelden.
Press

Media

March 27, 2026Media
Rolf Schröter wird neuer CEO der Eniwa: Diese Herausforderungen warten auf ihn
aargauerzeitung.ch
November 12, 2025Media
Das erste Aarauer Bevölkerungsanliegen fordert mehr Transparenz von der Eniwa
aargauerzeitung.ch
July 31, 2024Media
Qube Creatives stellt Eniwa als Alleskönnerin dar
markt-kom.com
February 16, 2021Media
Trinkwasser Unterentfelden – ein kostbares Gut
nau.ch

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Location

Industriestrasse 25
5033 Buchs Ag

At a glance

Legal form
Corporation
UID
CHE-101.182.424
Founded
2000 · 26 years
Last commercial register change
November 18, 2025
Employees
21 to 50

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