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Regulator record

YO26 tap water: what's in it?

Yorkshire Water: at least 69 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.

YO26 tap water quality report · 2026

  • Hardness

    Hard

    Details

    York West 2024 (supply zone) · 1 January 2024 to 31 December 2024

  • Hosepipe ban

    No hosepipe ban

    Details

    Checked 11 October 2026 at 02:34

  • Storm overflows

    89 overflows within 10 km of YO26 centre

    Details

    2,462 spills in 2025

  • Lead pipes

    66% built before 1973

    Details

    Estimate, not a test. Homes in the parts of YO26 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: 64–66%. England and Wales: 61% (2026).

    Ask Yorkshire Water for a free lead test ↗

    Lead test kits

Who supplies water in YO26

Boundary or unplaced: 5 postcodes

Drinking-water test record

Yorkshire Water: 880 of 885 postcodes

Yorkshire Water

Yorkshire Water, company-wide

Regulator
DWI
Report year
2025
Failed tests
Not shown
Tests
388,919

The regulator's published total and its company rows disagree, so we don't show a count.

Failed tests by parameter
E. coli (confirmed)Failed tests: 4
Enterococci (confirmed)Failed tests: 2
IronFailed tests: 20
LeadFailed tests: 6
NickelFailed tests: 7
Total coliforms (confirmed)Failed tests: 30

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 YO26?

Across YO26's supply zones, hardness ranges from 143 mg/l (slightly hard) to 264 mg/l (hard). Those 5 zones cover 93% of its postcodes.

5 identified supply zones in YO26

York West 2024 · Yorkshire Water (337 of 885 postcodes)

240 mg/l · 16.9 °Clark · 13.5 °dH · 24.0 °fH

Hard

Zone average.

York West 2024 (supply zone) · 1 January 2024 to 31 December 2024

Source: Yorkshire Water — dated 1 January 2024 to 31 December 2024, read 30 September 2026

York North 2024 · Yorkshire Water (210 of 885 postcodes)

264 mg/l · 18.5 °Clark · 14.8 °dH · 26.4 °fH

Hard

Zone average.

York North 2024 (supply zone) · 1 January 2024 to 31 December 2024

Source: Yorkshire Water — dated 1 January 2024 to 31 December 2024, read 30 September 2026

Boroughbridge 2019 · Yorkshire Water (161 of 885 postcodes)

197 mg/l · 13.8 °Clark · 11.0 °dH · 19.7 °fH

Moderately hard

Zone average.

Boroughbridge 2019 (supply zone) · 1 January 2024 to 31 December 2024

Source: Yorkshire Water — dated 1 January 2024 to 31 December 2024, read 30 September 2026

Tadcaster and Wetherby 2019 · Yorkshire Water (101 of 885 postcodes)

143 mg/l · 10.0 °Clark · 8.0 °dH · 14.3 °fH

Slightly hard

Zone average.

Tadcaster and Wetherby 2019 (supply zone) · 1 January 2024 to 31 December 2024

Source: Yorkshire Water — dated 1 January 2024 to 31 December 2024, read 30 September 2026

York East 2024 · Yorkshire Water (17 of 885 postcodes)

247 mg/l · 17.3 °Clark · 13.8 °dH · 24.7 °fH

Hard

Zone average.

York East 2024 (supply zone) · 1 January 2024 to 31 December 2024

Source: Yorkshire Water — dated 1 January 2024 to 31 December 2024, read 30 September 2026

54 postcodes without an identified supply zone

Yorkshire Water (54 of 885 postcodes)

We do not have a verified hardness figure for this area. Ask your water company for its water quality report.

Ask your water company

Storm overflows nearby

89 overflows within 10 km of YO26 centre · 2,462 spills in 2025

YO26 (district) · 2025

Source: Environment Agency EDM annual return 2025 — dated 20 August 2026, read 13 October 2026

Overflows here are run by Yorkshire Water.

73 of these were monitored for only part of 2025.

Nearest 5 shown

  1. HESSAY MAIN STREET CSO

    Into NEW DIKE · 0.9 km from the centre of YO26

    6 spills · 17.3 hours · Monitored 100% of 2025

  2. RUFFORTH STW

    Into SMAWITH DIKE · 1.4 km from the centre of YO26

    6 spills · 77.5 hours · Monitored 100% of 2025

  3. RIVERSIDE GARDENS SPS

    Into A TRIBUTARY OF THE RIVER OUSE · 2.3 km from the centre of YO26

    62 spills · 306.2 hours · Monitored 100% of 2025

  4. MILLFIELD LANE CSO

    Into TRIB RIVER OUSE · 2.8 km from the centre of YO26

    29 spills · 62.9 hours · Monitored 100% of 2025

  5. LOWER POPPLETON LANE SPS

    Into UNNAMED TRIB OF RIVER OUSE · 3.1 km from the centre of YO26

    23 spills · 66.6 hours · Monitored 99.8% 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

66% built before 1973

66% of homes here were built before 1973 — estimate, not a test.

Homes in the parts of YO26 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: 64–66%. England and Wales: 61% (2026).

Older homes are more likely to have lead pipes. Only a test tells you whether yours does.

YO26 (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.

About fluoride in UK water

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

Fluoride in UK tap water

Hosepipe bans

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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)

    reduces 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.

    View Details

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)

    reduces 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.

    View Details

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

Questions about tap water in YO26

Is the water in YO26 hard or soft?
Yorkshire Water: hard, 240 mg/l, 16.9 °Clark, 13.5 °dH, 24.0 °fH (York West 2024 (supply zone), 1 January 2024 to 31 December 2024). Zone average. Yorkshire Water: hard, 264 mg/l, 18.5 °Clark, 14.8 °dH, 26.4 °fH (York North 2024 (supply zone), 1 January 2024 to 31 December 2024). Zone average. Yorkshire Water: moderately hard, 197 mg/l, 13.8 °Clark, 11.0 °dH, 19.7 °fH (Boroughbridge 2019 (supply zone), 1 January 2024 to 31 December 2024). Zone average. Yorkshire Water: slightly hard, 143 mg/l, 10.0 °Clark, 8.0 °dH, 14.3 °fH (Tadcaster and Wetherby 2019 (supply zone), 1 January 2024 to 31 December 2024). Zone average. Yorkshire Water: We do not have a verified hardness figure for this area. Ask your water company for its water quality report. Yorkshire Water: hard, 247 mg/l, 17.3 °Clark, 13.8 °dH, 24.7 °fH (York East 2024 (supply zone), 1 January 2024 to 31 December 2024). Zone average.
What does the drinking water regulator's record show for YO26?
Yorkshire Water: at least 69 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 YO26 have lead pipes?
66% of homes here were built before 1973 — estimate, not a test. Homes in the parts of YO26 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: 64–66%. 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 YO26 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

Yorkshire Water contact page, Yorkshire Water, Yorkshire Water, Yorkshire Water, Yorkshire Water, Yorkshire Water, Yorkshire Water: Database right, used under the publisher's terms.

Water company boundaries © Water UK, licensed under CC BY 4.0Contains public sector information licensed under the Open Government Licence v3.0

Data generation uk-2026-10-16-derive6

Check another postcode

By TapWaterData Editorial

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