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tapwater
England and Wales average 9.0

Tap water in CA7, CumberlandSafe to drink.Soft.

Supplied by United Utilities. 1,712 samples, 16 substances, latest on 30 December 2024. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.4 / 10

The tank is as full as the score. The specks are the minerals that make water hard.

What to do about it

ZeroWater 12-Cup Ready-Pour

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£40typical price

Households concerned about PFAS and heavy metals

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Waterdrop 10UA Under Sink

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High-volume under-sink filtration without RO complexity

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Basic chlorine and taste improvement on a budget

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What's in a glass of CA7 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.

Trihalomethanes came closest to a limit, at 26% of it. 15 of 16 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCopper: 0.0000862 mg/L, <1% of the 2 mg/L limitCopper<1%Manganese: 0.00037 mg/L, <1% of the 0.05 mg/L limitManganese<1%Chromium: 0.00083 mg/L, 2% of the 0.05 mg/L limitChromium2%Cadmium: 0.00009 mg/L, 2% of the 0.005 mg/L limitCadmium2%Nitrite: 0.0098 mg/L, 2% of the 0.5 mg/L limitNitrite2%Iron: 0.004 mg/L, 2% of the 0.2 mg/L limitIron2%Selenium: 0.00085 mg/L, 2% of the 0.04 mg/L limitSelenium2%Bromate: 0.00036 mg/L, 4% of the 0.01 mg/L limitBromate4%Nickel: 0.00077 mg/L, 4% of the 0.02 mg/L limitNickel4%Aluminium: 0.00865 mg/L, 4% of the 0.2 mg/L limitAluminium4%Turbidity: 0.2 NTU, 5% of the 4 NTU limitTurbidity5%Lead: 0.00055 mg/L, 6% of the 0.01 mg/L limitLead6%Antimony: 0.00031 mg/L, 6% of the 0.005 mg/L limitAntimony6%Ammonia: 0.054 mg/L, 11% of the 0.5 mg/L limitAmmonia11%Nitrate: 5.45 mg/L, 11% of the 50 mg/L limitNitrate11%Trihalomethanes: 0.0259 mg/L, 26% of the 0.1 mg/L limitTrihalomethanes26%
  1. Trihalomethanes26%
  2. Nitrate11%
  3. Ammonia11%
  4. Antimony6%
  5. Lead6%
  6. Turbidity5%
  7. Aluminium4%
  8. Nickel4%
  9. Bromate4%
  10. Selenium2%
  11. Iron2%
  12. Nitrite2%
  13. Cadmium2%
  14. Chromium2%
  15. Manganese<1%
  16. Copper<1%
All 16 results as a table
SubstanceResultLegal limitShare of limit
Aluminium0.00865 mg/L0.2 mg/L
4%
Iron0.004 mg/L0.2 mg/L
2%
Manganese0.00037 mg/L0.05 mg/L
<1%
Cadmium0.00009 mg/L0.005 mg/L
2%
Chromium0.00083 mg/L0.05 mg/L
2%
Antimony0.00031 mg/L0.005 mg/L
6%
Selenium0.00085 mg/L0.04 mg/L
2%
Turbidity0.2 NTU4 NTU
5%
Trihalomethanes0.0259 mg/L0.1 mg/L
26%
Bromate0.00036 mg/L0.01 mg/L
4%
Copper0.0000862 mg/L2 mg/L
<1%
Nickel0.00077 mg/L0.02 mg/L
4%
Lead0.00055 mg/L0.01 mg/L
6%
Nitrate5.45 mg/L50 mg/L
11%
Nitrite0.0098 mg/L0.5 mg/L
2%
Ammonia0.054 mg/L0.5 mg/L
11%

52mg of limescale minerals in every litre

Soft water. Kind to kettles, boilers and skin

You will not need a softener here, and you will use less soap and detergent than most of England.

Soft400 mg/L
Outside your tap

Your river is the Waver, rated moderate

The Environment Agency rated the Waver as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by fish and water plants and algae. 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

CA7 in short

Tap water in CA7 (Cumberland) is supplied by United Utilities in the Cumberland Central zone and scores 9.4 out of 10, against an England and Wales average of 9.0. None of the 16 tested substances came close to a limit. The latest sample is from 30 December 2024.

  • 22nd cleanest of 25 areas tested in Cumberland3 areas in Cumberland scored lower. The best is CA18 on 9.7.
  • Soft water at 52 mg/LLimescale is not a problem in CA7, so skip softeners and scale filters entirely. How hardness is measured
  • Nothing tested came within 40% of its legal limitThe highest was Trihalomethanes at 26% of the 0.1 mg/L maximum. See every reading

Next door

CA19.5 out of 10 · 100 mg/LCA29.5 out of 10 · 101 mg/LCA39.3 out of 10 · 101 mg/LCA49.7 out of 10 · 100 mg/LCA59.4 out of 10 · 100 mg/LCA69.4 out of 10 · 72 mg/LCA89.5 out of 10 · 72 mg/LCA129.4 out of 10 · 8 mg/LCA139.4 out of 10 · 8 mg/LCA149.4 out of 10 · 8 mg/L

Questions about CA7 water

Is CA7 tap water safe to drink?

Based on the latest tests, CA7 (Cumberland) water scores 9.4/10, which is safe. 0 of 16 tested contaminants exceeded recommended levels. Water is supplied by United Utilities.

What contaminants are in CA7 water?

We tested 16 contaminants in CA7 water. None exceeded recommended safe levels.

Who supplies water in CA7?

CA7 (Cumberland) is supplied by United Utilities. You can view their full profile and compliance data on our supplier page.

Is CA7 water hard or soft?

Water in CA7 (Cumberland) has a hardness of 52 mg/L CaCO3, which is classified as soft. Soft water is gentle on appliances and skin.

Should I use a water filter in CA7?

CA7 water scored 9.4/10 with no contaminants above recommended levels. A filter is optional but can improve taste, especially if you notice a chlorine flavour. See our filter recommendations for your area.

Are there PFAS forever chemicals in CA7 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for CA7, 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 CA7?

The Environment Agency rated the Waver as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by fish and water plants and algae. 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 CA7, which is treated before it reaches homes.

Keep reading

How to test your waterBest water filtersFilter shower headsWater testing kitsUK water rankingsWater hardness checkerWater hardness map

River and groundwater readings near CA7

Environment Agency samples from rivers, groundwater and reservoirs nearby. Not your tap water. For scale they are shown against drinking water limits; rivers are judged against much stricter environmental standards, and on those every river in England fails for chemicals.

SubstanceReadingDrinking water limit
Ammonia0.45 mg/L0.5 mg/L
Turbidity4.1 NTU4 NTU
Manganese0.0521 mg/L0.05 mg/L
pH8.04 pHNone
Temperature13.6 °CNone
Conductivity540 µS/cmNone
Nitrate3.8 mg/L50 mg/L
Nitrite0.062 mg/L0.5 mg/L
Phosphate0.1 mg/LNone
Dissolved Oxygen8.88 mg/LNone
Hardness (as CaCO3)242 mg/LNone
Fluoride0.135 mg/L1.5 mg/L
Chromium0.000523 mg/L0.05 mg/L
Aluminium0.0285 mg/L0.2 mg/L
Iron0.143 mg/L0.2 mg/L

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We'll email you when water quality data changes for CA7.

Source: United Utilities test results, published through the Stream Water Data Portal; rivers and PFAS from the Environment Agency. Page updated . How we score · Where the data comes from