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England and Wales average 9.0

Tap water in SS6, RochfordAmmonia is over the limit.

Supplied by Anglian Water. 9 substances, latest on 18 September 2026. Ammonia came in above the legal limit. Everything else passed.

See the filter we recommendSee everything that was tested

6.6 / 10

The tank is as full as the score.

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What's in a glass of SS6 water

Every bubble is a substance the lab measured. The higher it floats, the closer it came to its legal limit, the dashed line at the top.

Ammonia is over its legal limit, at 139% of it.

0%25%50%75%limitLegal limitCopper: 0.0038 mg/L, <1% of the 2 mg/L limitCopper<1%Nitrate: 0.38 mg/L, <1% of the 50 mg/L limitNitrate<1%Cadmium: 0.00016 mg/L, 3% of the 0.005 mg/L limitCadmium3%Chromium: 0.0036 mg/L, 7% of the 0.05 mg/L limitChromium7%Lead: 0.0074 mg/L, 74% of the 0.01 mg/L limitLead74%Ammonia: 0.695 mg/L, 139% of the 0.5 mg/L limitAmmonia139%
  1. Ammonia139%
  2. Lead74%
  3. Chromium7%
  4. Cadmium3%
  5. Nitrate<1%
  6. Copper<1%
  • Conductivity 1080 µS/cm
  • Phosphate 1.64 mg/L
  • Zinc 0.0098 mg/L
All 9 results as a table
SubstanceResultLegal limitShare of limit
Ammonia0.695 mg/L0.5 mg/L
139%
Conductivity1080 µS/cmNo legal limit–
Phosphate1.64 mg/LNo legal limit–
Chromium0.0036 mg/L0.05 mg/L
7%
Copper0.0038 mg/L2 mg/L
<1%
Zinc0.0098 mg/LNo legal limit–
Nitrate0.38 mg/L50 mg/L
<1%
Lead0.0074 mg/L0.01 mg/L
74%
Cadmium0.00016 mg/L0.005 mg/L
3%
Outside your tap

Your river is the Noblesgreen Ditch, rated moderate

The Environment Agency rated the Noblesgreen Ditch as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by phosphate and insects and other small river life. It fails the chemical test, as every river, estuary and stretch of coast in England does, because of long-lasting pollutants such as mercury, PFOS (a forever chemical) and old flame retardants.

None of this is a test of your tap water. Environment Agency record · River health across England

SS6 in short

Tap water in SS6 (Rochford) is supplied by Anglian Water in the Rochford Central zone and scores 6.6 out of 10, against an England and Wales average of 9.0. 1 of 9 tested substances was close to or over a limit. The latest sample is from 18 September 2026.

  • Ammonia was measured at 0.69 mg/L, 39% over the UK limitIt is the only one of 9 tested substances to go over its limit. See the full results
  • The lowest score of the 3 areas tested in RochfordSS6 scores 6.6 out of 10. The best in Rochford, SS4, scores 7.8.
  • Every one of the 4 neighbouring districts scores higherSS4 next door scores 7.8, against 6.6 here. Supply zones, not distance, explain the gap. See SS4

Next door

SS47.8 out of 10SS57.0 out of 10SS97.7 out of 10SS77.1 out of 10

Questions about SS6 water

Is SS6 tap water safe to drink?

Based on the latest tests, SS6 (Rochford) water scores 6.6/10, which is mostly safe but has some issues. 1 of 9 tested contaminants exceeded recommended levels. Water is supplied by Anglian Water.

What contaminants are in SS6 water?

We tested 9 contaminants in SS6 water. 1 were flagged, including Ammonia.

Who supplies water in SS6?

SS6 (Rochford) is supplied by Anglian Water. You can view their full profile and compliance data on our supplier page.

Should I use a water filter in SS6?

With 1 contaminant above recommended levels in SS6, a water filter could help. A filter jug or under-sink filter can reduce most common contaminants. See our filter recommendations for your area.

Are there PFAS forever chemicals in SS6 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for SS6, and the Environment Agency has no PFAS detections in rivers or groundwater within 10 km of it. That reflects where sampling has happened as much as the water itself.

How clean is the river near SS6?

The Environment Agency rated the Noblesgreen Ditch as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by phosphate and insects and other small river life. It fails the chemical test, as every river, estuary and stretch of coast in England does, because of long-lasting pollutants such as mercury, PFOS (a forever chemical) and old flame retardants. This is a rating of the river, not of tap water in SS6, which is treated before it reaches homes.

Keep reading

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