Álava
Tap water quality in Aiara/Ayala
According to the water supplier's report.
- Water supplier
- EKUIS: SISTEMA DE INFORMACIÓN DE AGUAS DE CONSUMO DE LA CAPV
- Municipality
- Aiara/Ayala
- Data updated
- September 2026
TasteOKGood
Unfiltered tap water
Filtered with EcoPro
ChlorineHigh quality0.3 mg CL2/lHigh quality0.006 mg CL2/l
Unfiltered tap water
Filtered with EcoPro
LimescaleNot reportedLowLimescale inhibitor
Unfiltered tap water
Filtered with EcoPro
The EcoPro filter contains a limescale inhibitor that stops the water's calcium and magnesium from forming deposits in kettles, coffee machines, taps and pipes. It doesn't remove those minerals, but limescale no longer forms. The hardness measured in your area is in the full parameter list.
MineralsHigh quality227.2 mg/lHigh quality227.2 mg/lMinerals kept
Unfiltered tap water
Filtered with EcoPro
TAPP Water EcoPro filters do not remove healthy minerals such as calcium and magnesium, so the mineral content (total dissolved solids, TDS) is the same before and after filtering.
PathogensDrinkable0High quality
Unfiltered tap water
Filtered with EcoPro
Heavy metalsNot reportedNot reported
Unfiltered tap water
Filtered with EcoPro
MicroplasticsNot reportedNot reported
Unfiltered tap water
Filtered with EcoPro
Microplastics have been found in most tap water in Spain, although the amount varies. Local water utilities do not report on microplastics.
PFASNot reportedNot reported
Unfiltered tap water
Filtered with EcoPro
PFAS are regulated by European drinking water law (EU 2020/2184, RD 3/2023) with a limit of 0.10 µg/l for the sum of 20 substances. Where no value appears, the water utility has not reported one.
The "Filtered" column shows the estimated result after filtering with TAPP Water EcoPro filters.

Improve your tap water
TAPP Water filters reduce chlorine, heavy metals and microplastics in tap water, without plastic bottles.
Choose your supply zone
Your municipality has several supply zones and water quality can differ between them. Pick the one covering your neighbourhood.
- BEOTEGI67 peopleRED DE BEOTEGUIServes most residentsYou're viewing this one
- LUIAONDO37 peopleLUIAONDO
- LUIAONDO37 peopleRED DE AGUIÑIGA
- COSTERA/OPELLORA23 peopleRED DE COSTERA
- AGIÑAGA21 peopleRED DE AGIÑIGA
- AÑES19 peopleRED DE AÑES DOS BARRIOS
- ETXEGOIEN19 peopleRED DE ETXEGOIEN
- ERBI10 peopleRED DE ERBI
- AMURRIO648 peopleRED DE BARANBIO PUEBLO
- AMURRIO648 peopleAMURRIO
- AMURRIO648 peopleRED DE ALORIA
- AMURRIO648 peopleRED DE ARTOMAÑA
- AMURRIO648 peopleRED DE BERGANZA (BARANBIO)
- AMURRIO648 peopleRED DE BARANBIO ARRIBA
- BARANBIO22 peopleRED Bº ARRIBA / ARANGUREN
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About this data
Data collected from the water supplier for your area. Quality ranges are based on WHO, EU and Spanish guidelines.