Drinking water quality in Crêts en Belledonne

Q: Is tap water in Crêts en Belledonne safe to drink?

Yes. The latest official test (15 June 2026) checked the tap water in Crêts en Belledonne and it passed every requirement.

Q: How high are PFAS levels in Crêts en Belledonne's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at <0,029 µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (below the EU limit)

Q: How hard is the water in Crêts en Belledonne?

The water hardness in Crêts en Belledonne is 28.41 °f (medium). This mainly matters for household appliances and detergent dosing, not for health.

Q: Where does this data come from?

All values come from official publications: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM). Retrieved on 28 August 2026.

Region: Auvergne-Rhône-Alpes Population: 3,470 Water supplier: CC LE GRÉSIVAUDAN Latest sample: 15 June 2026

PFAS in drinking water

EU legal limit

<0,029 µg/L Limit: 0.1 µg/L within limit

The total of 20 PFAS ("forever chemicals") was last measured at <0,029 µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (18 September 2025)

This source does not list each PFAS substance separately, so we cannot compare this water with the health limit.

Water report for Crêts en Belledonne

Official assessment

The latest official test passed all quality requirements.

„Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.“

Microbiology: within limit Chemistry: within limit

Show all 16 official measurements

Parameter	Value	Limit	Status
Nitrate	1.8 mg/L	≤ 50 mg/L	within limit
Nitrite	<0,01 mg/L	≤ 0.5 mg/L	within limit
Lead	<2 µg/L	≤ 10 µg/L	within limit
Copper	0.182 mg(Cu)/L	≤ 2 mg(Cu)/L	within limit
Nickel	5 µg/L	≤ 20 µg/L	within limit
Chromium	<5 µg/L	≤ 50 µg/L	within limit
Fluoride	0.08 mg/L	≤ 1.5 mg/L	within limit
Escherichia coli	<1 n/(100mL)	≤ 0 mL)	within limit
Enterococci	<1 n/(100mL)	≤ 0 mL)	within limit
Coliform bacteria	<1 n/(100mL)	≤ 0 mL)	within limit
pH	7.7 unité pH	6.5–9 unité pH	within limit
Water hardness	28.41 °f	no limit	informational
Electrical conductivity	544 µS/cm	200–1,100 µS/cm	within limit
Chloride	1.3 mg/L	≤ 250 mg/L	within limit
Sulphate	43.3 mg/L	≤ 250 mg/L	within limit
Turbidity	<0,1 NFU	≤ 2 NFU	within limit

See the full results

See every official test result for Crêts en Belledonne, including each PFAS substance. Free, just leave your email.

Frequently asked questions

Is tap water in Crêts en Belledonne safe to drink?

Yes. The latest official test (15 June 2026) checked the tap water in Crêts en Belledonne and it passed every requirement.

How high are PFAS levels in Crêts en Belledonne's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at <0,029 µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (below the EU limit)

How hard is the water in Crêts en Belledonne?

The water hardness in Crêts en Belledonne is 28.41 °f (medium). This mainly matters for household appliances and detergent dosing, not for health.

Where does this data come from?

All values come from official publications: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM). Retrieved on 28 August 2026.

Data source

Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM): https://hubeau.eaufrance.fr/api/v1/qualite_eau_potable/resultats_dis?code_commune=38439
License: Licence Ouverte / Open Licence (Etalab)
Retrieved: 28 August 2026
Supply networks: ST PIERRE D'ALLEVARD PRINCIPAL, ADRET DE BARLET, VOLEY, FEYJOUX, LA ROCHE, CRET DU POULET, MAILLES, FONTAINES, VERNAY CHARRIERE

This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.