SS11 tap water: what's in it?
Northumbrian, Essex and Suffolk Water group (figures include Essex & Suffolk Water): at least 36 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.
SS11 tap water quality report · 2026
Hardness
Not covered
We do not have a verified hardness figure for this area. Ask your water company for its water quality report.
Details
We do not have a verified hardness figure for this area. Ask your water company for its water quality report.
Hosepipe ban
Hosepipe ban in force
Essex & Suffolk Water (Environment Agency, 11 October 2026). Checked 11 October 2026 at 02:34
Details
Essex & Suffolk Water (Environment Agency, 11 October 2026). Checked 11 October 2026 at 02:34
Storm overflows
43 overflows within 10 km of SS11 centre
237 spills in 2025
Details
237 spills in 2025
Lead pipes
57% built before 1973
Estimate, not a test. Homes in the parts of SS11 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: 55–57%. England and Wales: 61% (2026).
Details
Estimate, not a test. Homes in the parts of SS11 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: 55–57%. England and Wales: 61% (2026).
Who supplies water in SS11
Part of Northumbrian, Essex and Suffolk Water
Supplies 478 of 478 postcodes (100%)
We can't confirm your sewerage company from official data for this area.
Drinking-water test record
Essex & Suffolk Water: 478 of 478 postcodes
Essex & Suffolk Water
Northumbrian, Essex and Suffolk Water group, includes Essex & Suffolk Water
- Regulator
- DWI
- Report year
- 2025
- Failed tests
- Not shown
- Tests
- 266,202
The regulator's published total and its company rows disagree, so we don't show a count.
| Parameter | Failed tests |
|---|---|
| Aluminium | Failed tests: 4 |
| E. coli (confirmed) | Failed tests: 3 |
| Enterococci (confirmed) | Failed tests: 1 |
| Iron | Failed tests: 9 |
| Lead | Failed tests: 5 |
| Manganese | Failed tests: 3 |
| Nickel | Failed tests: 2 |
| Nitrite – consumers taps | Failed tests: 1 |
| Sodium | Failed tests: 1 |
| Total coliforms (confirmed) | Failed tests: 7 |
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 SS11?
Across SS11's supply zones, hardness ranges from 230 mg/l (hard) to 273 mg/l (hard). Those 3 zones cover 22% of its postcodes.
3 identified supply zones in SS11
SOUTH WOODHAM & HULLBRIDGE · Essex & Suffolk Water (70 of 478 postcodes)
270 mg/l · 18.9 °Clark · 15.1 °dH · 27.0 °fH
Zone average.
SOUTH WOODHAM & HULLBRIDGE (supply zone) · January 2025 to December 2025
Source: Essex & Suffolk Water — dated January 2025 to December 2025, read 28 September 2026
RAYLEIGH · Essex & Suffolk Water (30 of 478 postcodes)
273 mg/l · 19.2 °Clark · 15.3 °dH · 27.3 °fH
Zone average.
RAYLEIGH (supply zone) · January 2025 to December 2025
Source: Essex & Suffolk Water — dated January 2025 to December 2025, read 28 September 2026
CHELMSFORD NORTH · Essex & Suffolk Water (6 of 478 postcodes)
230 mg/l · 16.1 °Clark · 12.9 °dH · 23.0 °fH
Zone average.
CHELMSFORD NORTH (supply zone) · January 2025 to December 2025
Source: Essex & Suffolk Water — dated January 2025 to December 2025, read 28 September 2026
372 postcodes without an identified supply zone
Essex & Suffolk Water (372 of 478 postcodes)
We do not have a verified hardness figure for this area. Ask your water company for its water quality report.
Storm overflows nearby
43 overflows within 10 km of SS11 centre · 237 spills in 2025
SS11 (district) · 2025
Source: Environment Agency EDM annual return 2025 — dated 20 August 2026, read 13 October 2026
Overflows here are run by Anglian Water.
23 of these were monitored for only part of 2025.
Nearest 5 shown
RUNWELL TPS
Into Trib River Crouch · 0.5 km from the centre of SS11
2 spills · 1 hours · Monitored 99.3% of 2025
WICKFORD WATER RECYCLING CENTRE
Into River Crouch T · 1.1 km from the centre of SS11
15 spills · 231.5 hours · Monitored 51.5% of 2025
CHURCH END LANE SO
Into tributary River Crouch · 1.3 km from the centre of SS11
4 spills · 13.3 hours · Monitored 94.3% of 2025
RUNWELL - BROCK HILL CSO
Into tributary River Crouch · 1.4 km from the centre of SS11
23 spills · 41 hours · Monitored 96.7% of 2025
RUNWELL-DOWNHAM ROAD CSO
Into tributary River Crouch · 1.4 km from the centre of SS11
0 spills · 0 hours · Monitored 70.9% 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
57% built before 1973
57% of homes here were built before 1973 — estimate, not a test.
Homes in the parts of SS11 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: 55–57%. England and Wales: 61% (2026).
Older homes are more likely to have lead pipes. Only a test tells you whether yours does.
SS11 (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
General picks — we don't hold your hardness
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 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 SS11
- Is the water in SS11 hard or soft?
- Essex & Suffolk Water: We do not have a verified hardness figure for this area. Ask your water company for its water quality report. Essex & Suffolk Water: hard, 270 mg/l, 18.9 °Clark, 15.1 °dH, 27.0 °fH (SOUTH WOODHAM & HULLBRIDGE (supply zone), January 2025 to December 2025). Zone average. Essex & Suffolk Water: hard, 273 mg/l, 19.2 °Clark, 15.3 °dH, 27.3 °fH (RAYLEIGH (supply zone), January 2025 to December 2025). Zone average. Essex & Suffolk Water: hard, 230 mg/l, 16.1 °Clark, 12.9 °dH, 23.0 °fH (CHELMSFORD NORTH (supply zone), January 2025 to December 2025). Zone average.
- What does the drinking water regulator's record show for SS11?
- Northumbrian, Essex and Suffolk Water group (figures include Essex & Suffolk Water): at least 36 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 SS11 have lead pipes?
- 57% of homes here were built before 1973 — estimate, not a test. Homes in the parts of SS11 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: 55–57%. 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 SS11 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
- Essex & Suffolk Water contact page ↗ · 13 October 2026 · read 13 October 2026
- DWI england 2025, Annex B ↗ · 2025 · read 13 October 2026
- DWI england 2025, national compliance ↗ · 2025 · read 13 October 2026
- Essex & Suffolk Water ↗ · January 2025 to December 2025 · read 28 September 2026
- Essex & Suffolk Water ↗ · January 2025 to December 2025 · read 28 September 2026
- Essex & Suffolk Water ↗ · January 2025 to 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
Essex & Suffolk Water, Essex & Suffolk Water, Essex & Suffolk Water: Database right, used under the publisher's terms.
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