BS16 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.
BS16 tap water quality report · 2026
Hardness
Hard
Yate, Coalpit Heath and Warmley (supply zone) · 1 January 2025 to 31 December 2025
Details
Yate, Coalpit Heath and Warmley (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
254 overflows within 10 km of BS16 centre
3,401 spills in 2025
Details
3,401 spills in 2025
Lead pipes
55% built before 1973
Estimate, not a test. Homes in the parts of BS16 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: 54–55%. England and Wales: 61% (2026).
Details
Estimate, not a test. Homes in the parts of BS16 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: 54–55%. England and Wales: 61% (2026).
Who supplies water in BS16
Supplies 1,938 of 2,037 postcodes (95%)
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: 99 postcodes
Drinking-water test record
Bristol Water: 1,938 of 2,037 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 BS16?
Across BS16's supply zones, hardness ranges from 205 mg/l (hard) to 264 mg/l (hard). Those 9 zones cover 93% of its postcodes.
9 identified supply zones in BS16
Yate, Coalpit Heath and Warmley · Bristol Water (704 of 2,037 postcodes)
245 mg/l · 17.2 °Clark · 13.7 °dH · 24.5 °fH
Published figure.
Yate, Coalpit Heath and Warmley (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
Kingswood, Fishponds and Mangotsfield · Bristol Water (623 of 2,037 postcodes)
264 mg/l · 18.5 °Clark · 14.8 °dH · 26.4 °fH
Published figure.
Kingswood, Fishponds and Mangotsfield (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 (375 of 2,037 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
Sherston, Marshfield and Pucklechurch · Bristol Water (86 of 2,037 postcodes)
232 mg/l · 16.3 °Clark · 13.0 °dH · 23.2 °fH
Published figure.
Sherston, Marshfield and Pucklechurch (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
Stapleton, St. George and Coombe · Bristol Water (75 of 2,037 postcodes)
234 mg/l · 16.4 °Clark · 13.1 °dH · 23.4 °fH
Published figure.
Stapleton, St. George and Coombe (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
Longwell Green, Saltford and Keynsham · Bristol Water (19 of 2,037 postcodes)
241 mg/l · 16.9 °Clark · 13.5 °dH · 24.1 °fH
Published figure.
Longwell Green, Saltford and Keynsham (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
Bradley Stoke and Winterbourne · Bristol Water (8 of 2,037 postcodes)
251 mg/l · 17.6 °Clark · 14.1 °dH · 25.1 °fH
Published figure.
Bradley Stoke and Winterbourne (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
Eastville, Easton, Netham and St Philips · Bristol Water (8 of 2,037 postcodes)
205 mg/l · 14.4 °Clark · 11.5 °dH · 20.5 °fH
Published figure.
Eastville, Easton, Netham and St Philips (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
Whitchurch, Hengrove, Knowle and Knowle Park · Bristol Water (4 of 2,037 postcodes)
238 mg/l · 16.7 °Clark · 13.3 °dH · 23.8 °fH
Published figure.
Whitchurch, Hengrove, Knowle and Knowle Park (supply zone) · 1 January 2025 to 31 December 2025
Source: Bristol Water — dated 1 January 2025 to 31 December 2025, read 28 September 2026
36 postcodes without an identified supply zone
South West Water (36 of 2,037 postcodes)
We do not have a verified hardness figure for this area. Ask your water company for its water quality report.
Storm overflows nearby
254 overflows within 10 km of BS16 centre · 3,401 spills in 2025
BS16 (district) · 2025
Source: Environment Agency EDM annual return 2025 — dated 20 August 2026, read 13 October 2026
Overflows here are run by Wessex Water.
97 of these were monitored for only part of 2025.
Nearest 5 shown
OVERNDALE ROAD CSO
Into LINCOMBE BARN STREAM · 0.5 km from the centre of BS16
5 spills · 3.4 hours · Monitored 100% of 2025
SHEPPARD ROAD CSO
Into TRIB OF RIVER FROME VIA SWS · 0.9 km from the centre of BS16
2 spills · 10 hours · Monitored 100% of 2025
Not Applicable
Into Unnamed tributary of the River Frome · 1.3 km from the centre of BS16
0 spills · 0 hours · Monitored 100% of 2025
FISHPONDS STORM RETENTION TANK CSO
Into FISHPONDS BROOK VIA SWS · 1.7 km from the centre of BS16
0 spills · 0 hours · Monitored 100% of 2025
FRENCHAY PARK ROAD CSO
Into TRIB OF THE RIVER FROME · 1.8 km from the centre of BS16
1 spill · 0.1 hours · Monitored 95.5% 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
55% built before 1973
55% of homes here were built before 1973 — estimate, not a test.
Homes in the parts of BS16 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: 54–55%. England and Wales: 61% (2026).
Older homes are more likely to have lead pipes. Only a test tells you whether yours does.
BS16 (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 BS16
- Is the water in BS16 hard or soft?
- Bristol Water: hard, 245 mg/l, 17.2 °Clark, 13.7 °dH, 24.5 °fH (Yate, Coalpit Heath and Warmley (supply zone), 1 January 2025 to 31 December 2025). Published figure. Bristol Water: hard, 264 mg/l, 18.5 °Clark, 14.8 °dH, 26.4 °fH (Kingswood, Fishponds and Mangotsfield (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, 232 mg/l, 16.3 °Clark, 13.0 °dH, 23.2 °fH (Sherston, Marshfield and Pucklechurch (supply zone), 1 January 2025 to 31 December 2025). Published figure. Bristol Water: hard, 234 mg/l, 16.4 °Clark, 13.1 °dH, 23.4 °fH (Stapleton, St. George and Coombe (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. Bristol Water: hard, 241 mg/l, 16.9 °Clark, 13.5 °dH, 24.1 °fH (Longwell Green, Saltford and Keynsham (supply zone), 1 January 2025 to 31 December 2025). Published figure. Bristol Water: hard, 251 mg/l, 17.6 °Clark, 14.1 °dH, 25.1 °fH (Bradley Stoke and Winterbourne (supply zone), 1 January 2025 to 31 December 2025). Published figure. Bristol Water: hard, 205 mg/l, 14.4 °Clark, 11.5 °dH, 20.5 °fH (Eastville, Easton, Netham and St Philips (supply zone), 1 January 2025 to 31 December 2025). Published figure. Bristol Water: hard, 238 mg/l, 16.7 °Clark, 13.3 °dH, 23.8 °fH (Whitchurch, Hengrove, Knowle and Knowle Park (supply zone), 1 January 2025 to 31 December 2025). Published figure.
- What does the drinking water regulator's record show for BS16?
- 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 BS16 have lead pipes?
- 55% of homes here were built before 1973 — estimate, not a test. Homes in the parts of BS16 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: 54–55%. 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 BS16 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
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Data generation uk-2026-10-16-derive6