NN6 tap water: what's in it?

Who supplies water in NN6

Drinking-water test record

How hard is the water in NN6?

Storm overflows nearby

Older homes and lead pipes

Fluoride

Hosepipe bans

What you can do

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)

• Why is my tap water brown?

  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 NN6

Is the water in NN6 hard or soft?

Anglian Water: at least moderately hard, at least 188 mg/l, at least 13.2 °Clark, at least 10.5 °dH, at least 18.8 °fH (Ravensthorpe PWSZ (supply zone), January 2025 to December 2025). Zone average. At least 188 mg/l (moderately hard or harder); total hardness is higher. Anglian Water: We do not have a verified hardness figure for this area. Ask your water company for its water quality report. Anglian Water: at least hard, at least 262 mg/l, at least 18.4 °Clark, at least 14.7 °dH, at least 26.2 °fH (Northampton East PWSZ (supply zone), January 2025 to December 2025). Zone average. At least 262 mg/l (hard or harder); total hardness is higher. Anglian Water: at least moderately hard, at least 153 mg/l, at least 10.7 °Clark, at least 8.6 °dH, at least 15.3 °fH (Northampton North PWSZ (supply zone), January 2025 to December 2025). Zone average. At least 153 mg/l (moderately hard or harder); total hardness is higher. Anglian Water: at least hard, at least 233 mg/l, at least 16.3 °Clark, at least 13.0 °dH, at least 23.3 °fH (Desborough PWSZ (supply zone), January 2025 to December 2025). Zone average. At least 233 mg/l (hard or harder); total hardness is higher. Anglian Water: at least moderately hard, at least 189 mg/l, at least 13.2 °Clark, at least 10.6 °dH, at least 18.9 °fH (Northampton West PWSZ (supply zone), January 2025 to December 2025). Zone average. At least 189 mg/l (moderately hard or harder); total hardness is higher. Anglian Water: at least moderately hard, at least 191 mg/l, at least 13.4 °Clark, at least 10.7 °dH, at least 19.1 °fH (Daventry PWSZ (supply zone), January 2025 to December 2025). Zone average. At least 191 mg/l (moderately hard or harder); total hardness is higher. Anglian Water: at least hard, at least 223 mg/l, at least 15.6 °Clark, at least 12.5 °dH, at least 22.3 °fH (Kettering Town West PWSZ (supply zone), January 2025 to December 2025). Zone average. At least 223 mg/l (hard or harder); total hardness is higher. Anglian Water: at least hard, at least 292 mg/l, at least 20.5 °Clark, at least 16.4 °dH, at least 29.2 °fH (Raunds Rural PWSZ (supply zone), January 2025 to December 2025). Zone average. At least 292 mg/l (hard or harder); total hardness is higher. Severn Trent Water: hard, 234 mg/l, 16.4 °Clark, 13.1 °dH, 23.4 °fH (Husbands Bosworth (supply zone), 1 August 2025 to 31 July 2026). Typical value.

What does the drinking water regulator's record show for NN6?

Anglian Water group (figures include Anglian Water): at least 25 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 NN6 have lead pipes?

49% of homes here were built before 1973 — estimate, not a test. Homes in the parts of NN6 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: 47–49%. 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 NN6 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.