Bristol Water draws from the Mendip Hills reservoirs and underground sources in the surrounding area.
We don't have enough test results for Bristol yet to show aggregate scores. Try searching for a specific postcode below.
BS1 Bristol, City ofBS10 Bristol, City ofBS11 Bristol, City ofBS13 Bristol, City ofBS14 Bristol, City ofBS2 Bristol, City ofBS20 North SomersetBS21 North SomersetBS22 North SomersetBS23 North SomersetBS24 North SomersetBS25 North SomersetBS29 North SomersetBS3 Bristol, City ofBS4 Bristol, City ofBS40 North SomersetBS41 North SomersetBS48 North SomersetBS49 North SomersetBS5 Bristol, City ofBS6 Bristol, City ofBS7 Bristol, City ofBS8 Bristol, City ofBS9 Bristol, City of
1 of the 14 rivers and waters that Bristol drains into is rated good or high by the Environment Agency. All of them fail the chemical test, as every river in England does, because of long-lasting pollutants such as mercury and PFOS. This describes the rivers, not your tap water.
| River or water | Ecological health | Postcode districts |
|---|---|---|
| Frome (Brist) - Bradley Bk to conf Floating Hbr | Moderate | BS1, BS2, BS5, BS6, BS7, BS8 |
| The Malago - source to conf R Avon (Brist New Cut) | Moderate | BS3, BS4, BS13 |
| Uphill Great Rhyne - source to conf R Axe Estuary | Moderate | BS22, BS23, BS24 |
| Trym - source to conf R Avon (Brist) | Moderate | BS9, BS10 |
| Banwell - source to conf R Banwell Estuary | Moderate | BS29 |
| Brislington Bk - source to conf R Avon (Brist) | Moderate | BS14 |
| Chestle Pill | Moderate | BS11 |
| Kenn Moor SSSI | Moderate | BS49 |
| Land Yeo - source to Jacklands Bridge | Moderate | BS41 |
| Land Yeo - Yearling Ditch to mouth | Moderate | BS21 |
| Oldbridge R - source to nr Manor Fm | Moderate | BS25 |
| Portbury Ditch - source to conf R Severn Estuary | Moderate | BS20 |
Showing the 12 lowest rated of 14. Environment Agency classification, 2025. River health across England
Bristol tap water meets legal requirements but several areas showed elevated contaminant levels. Across 0 areas tested, the average water quality score is 0.0/10. Check your specific postcode for details.
Tap water in Bristol meets legal requirements, so you can drink it, but several areas showed elevated contaminant levels (average score 0.0/10 across 0 areas tested). Check your specific postcode for details.
No contaminants were flagged above recommended levels across Bristol. All tested areas passed on the parameters measured.
Hardness data is not yet available for Bristol. Enter your postcode for detailed water quality data.
Data is still being collected for Bristol.
Water in Bristol is supplied by Bristol Water. Bristol Water draws from the Mendip Hills reservoirs and underground sources in the surrounding area.
No PFAS (forever chemicals) have been detected in any of the 0 areas tested in Bristol.
Get a detailed water quality report for your exact area in Bristol.
Based on water quality data from 0 postcode districts in Bristol. Data from your water company via the Stream Water Data Portal and the Environment Agency. See our methodology for how scores are calculated.