BS10 tap water: what's in it?
Bristol Water: at least 16 tests failed UK drinking-water standards in 2025 (DWI, company-wide).
Some published DWI figures don't reconcile or identify a company, so we've left them out; the true number may be higher. England overall: 99.97% of tests met standards.
BS10 tap water quality report · 2026
Hardness
Hard
Henbury, Henleaze and Stoke Bishop (supply zone) · 1 January 2025 to 31 December 2025
Details
Henbury, Henleaze and Stoke Bishop (supply zone) · 1 January 2025 to 31 December 2025
Hosepipe ban
Hosepipe ban in force
Bristol Water (Environment Agency, 11 October 2026). Checked 11 October 2026 at 02:34
Details
Bristol Water (Environment Agency, 11 October 2026). Checked 11 October 2026 at 02:34
Storm overflows
260 overflows within 10 km of BS10 centre
3,435 spills in 2025
Details
3,435 spills in 2025
Lead pipes
68% built before 1973
Estimate, not a test. Homes in the parts of BS10 we can match to council-tax records (100% of its postcodes) whose build period is known; the share with no recorded build period isn't published for these areas. Allowing for suppressed counts: 67–69%. England and Wales: 61% (2026).
Details
Estimate, not a test. Homes in the parts of BS10 we can match to council-tax records (100% of its postcodes) whose build period is known; the share with no recorded build period isn't published for these areas. Allowing for suppressed counts: 67–69%. England and Wales: 61% (2026).
Who supplies water in BS10
Supplies 741 of 775 postcodes (96%)
Bristol Water's phone number isn't in our records; their contact page lists it.
We can't confirm your sewerage company from official data for this area.
Boundary or unplaced: 34 postcodes
Drinking-water test record
Bristol Water: 741 of 775 postcodes
Bristol Water
Bristol Water, company-wide
- Regulator
- DWI
- Report year
- 2025
- Failed tests
- Not shown
- Tests
- 90,027
The regulator's published total and its company rows disagree, so we don't show a count.
| Parameter | Failed tests |
|---|---|
| Aluminium | Failed tests: 1 |
| Clostridium Perfringens (sulphite-reducing clostridia) (confirmed) | Failed tests: 1 |
| E. coli (confirmed) | Failed tests: 1 |
| Enterococci (confirmed) | Failed tests: 1 |
| Iron | Failed tests: 2 |
| Manganese | Failed tests: 1 |
| Nickel | Failed tests: 4 |
| Total coliforms (confirmed) | Failed tests: 5 |
Source: DWI england 2025, Annex B — dated 6 July 2026, read 13 October 2026
Source: DWI england 2025, Annex A — dated 6 July 2026, read 13 October 2026
England: 99.97% of tests met standards in 2025 (DWI).
Source: DWI england 2025, national compliance — dated 6 July 2026, read 13 October 2026
How hard is the water in BS10?
67% of BS10's postcodes are in the Henbury, Henleaze and Stoke Bishop supply zone (Bristol Water): 246 mg/l, hard.
Henbury, Henleaze and Stoke Bishop · Bristol Water (519 of 775 postcodes)
246 mg/l · 17.3 °Clark · 13.8 °dH · 24.6 °fH
Published figure.
Henbury, Henleaze and Stoke Bishop (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
3 identified supply zones in BS10
Henbury, Henleaze and Stoke Bishop · Bristol Water (519 of 775 postcodes)
246 mg/l · 17.3 °Clark · 13.8 °dH · 24.6 °fH
Published figure.
Henbury, Henleaze and Stoke Bishop (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
Filton and Northville · Bristol Water (182 of 775 postcodes)
255 mg/l · 17.9 °Clark · 14.3 °dH · 25.5 °fH
Published figure.
Filton and Northville (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
Thornbury, Shirehampton, Pill and Portishead · Bristol Water (26 of 775 postcodes)
242 mg/l · 17.0 °Clark · 13.6 °dH · 24.2 °fH
Published figure.
Thornbury, Shirehampton, Pill and Portishead (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
14 postcodes without an identified supply zone
South West Water (14 of 775 postcodes)
We do not have a verified hardness figure for this area. Ask your water company for its water quality report.
Storm overflows nearby
260 overflows within 10 km of BS10 centre · 3,435 spills in 2025
BS10 (district) · 2025
Source: Environment Agency EDM annual return 2025 — dated 20 August 2026, read 13 October 2026
Overflows here are run by Wessex Water.
100 of these were monitored for only part of 2025.
Nearest 5 shown
WESTBURY ON TRYM STORM OVERFLOW
Into RIVER AVON (S) · 1.5 km from the centre of BS10
36 spills · 108.7 hours · Monitored 100% of 2025
HENBURY ROAD CSO
Into RIVER TRYM VIA SWS · 1.5 km from the centre of BS10
0 spills · 0 hours · Monitored 98.5% of 2025
EASTFIELD ROAD CSO
Into RIVER TRYM VIA SWS · 1.5 km from the centre of BS10
24 spills · 5.6 hours · Monitored 100% of 2025
TRYM ROAD CSO
Into RIVER TRYM · 1.5 km from the centre of BS10
30 spills · 62.1 hours · Monitored 100% of 2025
HENLEAZE ROAD CSO
Into TRIB OF THE RIVER TRYM VIA SWS · 1.6 km from the centre of BS10
30 spills · 57.7 hours · Monitored 53.2% of 2025
Annual 2025 figures from monitored overflows. Not live, and not a bathing-water or tap-water verdict.
- 57 England outfalls in the 2025 return had no usable location and aren't counted.
- Northern Ireland isn't covered: No licensed annual per-outfall source in the approved source list; BT postcode coordinates require an LPS licence.
Older homes and lead pipes
68% built before 1973
68% of homes here were built before 1973 — estimate, not a test.
Homes in the parts of BS10 we can match to council-tax records (100% of its postcodes) whose build period is known; the share with no recorded build period isn't published for these areas. Allowing for suppressed counts: 67–69%. England and Wales: 61% (2026).
Older homes are more likely to have lead pipes. Only a test tells you whether yours does.
BS10 (district) · 2026
Source: Valuation Office Agency, Council Tax: stock of properties — dated 31 March 2026, read 24 September 2026
Fluoride
We cannot confirm whether this area is part of a water fluoridation scheme. Ask your water supplier using your postcode.
Around one in ten people in England receive drinking water supplied by a fluoridation scheme.
England · 2026 health monitoring report
Source: UKHSA and DHSC — dated 30 March 2026, read 13 October 2026
Hosepipe bans
What you can do
As an Amazon Associate we earn from qualifying purchases. Links go to amazon.com; Amazon's Earn Globally service can localise them to amazon.co.uk. Check the model and UK delivery before buying.
Water filter jugs
LifeStraw
LSH7GLSPK21
Performance certification:
Certified by WQA to NSF/ANSI 42 for Aesthetic Chlorine and Taste and Odor; Certified by WQA to NSF/ANSI 53 for Lead and Mercury; Certified by WQA to NSF/ANSI 401 for Microplastics (a US/international standard; it is not UK approval)
View Detailsreduces chlorine taste and odour in drinking water.
A UK retailer lists this model. Amazon UK stock and delivery are unverified; this Amazon link may not ship to the UK. Check the exact model and UK delivery before you pay.
UK availability evidence checked 14 October 2026.
Shower filters
Weddell Water
WD-100BL
Performance certification:
Certified by NSF to NSF/ANSI 177 for Free Available Chlorine Reduction (a US/international standard; it is not UK approval)
View Detailsreduces chlorine in shower water; does not soften water.
A UK retailer lists this model. Amazon UK stock and delivery are unverified; this Amazon link may not ship to the UK. Check the exact model and UK delivery before you pay.
Check it fits your shower fitting before buying; a US fitting may need an adaptor.
UK availability evidence checked 14 October 2026.
We haven't verified a water softener for UK buyers yet.
What a pick has to pass:
- An exact-model listing from NSF, WQA or IAPMO for the model sold in the UK
- Listed to NSF/ANSI 44, the water softener standard
- The manufacturer's documented feed connection and water-pressure range, so a plumber can check them against UK pipework
- UK availability evidenced by Amazon UK, the manufacturer or a UK retailer, checked in the last 90 days
Until we can recommend one, see what a softener costs to buy, fit and run in the UK. Water softener cost
We haven't verified a lead test kit for UK buyers yet.
What a pick has to pass:
- A lead result reported by a laboratory accredited for that test (UKAS, ISO/IEC 17025), named on the kit's listing
- UK availability evidenced by Amazon UK, the manufacturer or a UK retailer, checked in the last 90 days
Start with your water company: if you think you have lead pipes, you can ask it to test the water at your kitchen tap. Which water test you need
Common water problems
How much does a water softener cost in the UK?
Water softener cost UK 2026: price by home size
Why is my tap water cloudy or white?
Why is my tap water cloudy or white? (UK)
Brown tap water: causes and what to do (UK)
Why does my tap water taste metallic?
Tap water tastes metallic? Causes and fixes (UK)
Questions about tap water in BS10
- Is the water in BS10 hard or soft?
- Bristol Water: hard, 246 mg/l, 17.3 °Clark, 13.8 °dH, 24.6 °fH (Henbury, Henleaze and Stoke Bishop (supply zone), 1 January 2025 to 31 December 2025). Published figure. Bristol Water: hard, 255 mg/l, 17.9 °Clark, 14.3 °dH, 25.5 °fH (Filton and Northville (supply zone), 1 January 2025 to 31 December 2025). Published figure. Bristol Water: hard, 242 mg/l, 17.0 °Clark, 13.6 °dH, 24.2 °fH (Thornbury, Shirehampton, Pill and Portishead (supply zone), 1 January 2025 to 31 December 2025). Published figure. South West Water: We do not have a verified hardness figure for this area. Ask your water company for its water quality report.
- What does the drinking water regulator's record show for BS10?
- Bristol Water: at least 16 tests failed UK drinking-water standards in 2025 (DWI, company-wide). Some published DWI figures don't reconcile or identify a company, so we've left them out; the true number may be higher. England overall: 99.97% of tests met standards.
- Could homes in BS10 have lead pipes?
- 68% of homes here were built before 1973 — estimate, not a test. Homes in the parts of BS10 we can match to council-tax records (100% of its postcodes) whose build period is known; the share with no recorded build period isn't published for these areas. Allowing for suppressed counts: 67–69%. England and Wales: 61% (2026). Older homes are more likely to have lead pipes. Only a test tells you whether yours does.
- Is the water in BS10 fluoridated?
- We cannot confirm whether this area is part of a water fluoridation scheme. Ask your water supplier using your postcode. Around one in ten people in England receive drinking water supplied by a fluoridation scheme.
Sources and method
- Water Company Boundaries (UC2) ↗ · 19 September 2026 · read 20 September 2026
- DWI england 2025, Annex B ↗ · 2025 · read 13 October 2026
- DWI england 2025, national compliance ↗ · 2025 · read 13 October 2026
- Bristol Water ↗ · 1 January 2025 to 31 December 2025 · read 28 September 2026
- Environment Agency EDM annual return 2025 ↗ · 2025 · read 13 October 2026
- Valuation Office Agency, Council Tax: stock of properties ↗ · 2026 · read 24 September 2026
- UKHSA and DHSC ↗ · 2026 health monitoring report · read 13 October 2026
- Environment Agency ↗ · 11 October 2026 · read 11 October 2026
Bristol Water, Bristol Water, Bristol Water: Database right, used under the publisher's terms.
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