Wales · County

Water hardness in Gwent

Average 83 ppm across 18 postcodes and 1 towns.

  • Range 42–119 ppm
  • Towns 1
  • Suppliers Welsh Water (Dwr Cymru)
County average
83
ppm CaCO₃
Slightly Hard
Soft
Moderate
Hard
Very hard
0100200300400+
83
Avg ppm
42
Min ppm
119
Max ppm
18
Postcodes

Water Hardness Across Gwent

The average water hardness in Gwent is 83 ppm, classified as slightly hard. Across 18 postcode districts in the Wales region, hardness ranges from 42 ppm to 119 ppm.

Gwent is served by Welsh Water (Dwr Cymru). With slightly hard water, limescale is unlikely to be a major concern in most homes.

By town

Towns in Gwent

Sorted by hardness — tap a town for full details.

Town Hardness PPM Level
Newport
83
83 ppm Slightly Hard
Suppliers

Water Companies in Gwent

Companies supplying water to this county.

Welsh Water (Dwr Cymru)

68 ppm Slightly Hard
All postcodes

Postcodes in Gwent

Every postcode district in the county, sorted by hardness.

Postcode Town Hardness PPM Level
NP19 Newport
119
119 ppm Slightly Hard
NP18 Newport
118
118 ppm Slightly Hard
NP16 Chepstow
116
116 ppm Slightly Hard
NP15 Usk
115
115 ppm Slightly Hard
NP13 Abertillery
113
113 ppm Slightly Hard
NP12 Blackwood
112
112 ppm Slightly Hard
NP44 Cwmbran
112
112 ppm Slightly Hard
NP11 Newport
111
111 ppm Slightly Hard
NP10 Newport
110
110 ppm Slightly Hard
NP8 Crickhowell
64
64 ppm Slightly Hard
NP7 Abergavenny
63
63 ppm Slightly Hard
NP4 Pontypool
60
60 ppm Soft
NP26 Caldicot
48
48 ppm Soft
NP25 Monmouth
47
47 ppm Soft
NP24 New Tredegar
46
46 ppm Soft
NP23 Ebbw Vale
45
45 ppm Soft
NP22 Tredegar
44
44 ppm Soft
NP20 Newport
42
42 ppm Soft

Hard Water Guides

Learn more about water hardness and how to manage it.

What Is Water Hardness? Hard Water Effects Solutions
All counties in Wales · Hardest water areas · Softest water areas · Hard water solutions

Get Gwent Water Updates

Be notified when water companies in Gwent report changes to hardness levels.