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Cotswold Spring

Cotswold Spring is spring water from a borehole in the Cotswold Hills, filtered through oolitic limestone, so it is high in calcium. — as described by the brand

8.8/10Waterphile Score7/9 properties published
  • pH7.2 ideal 6.5–8.59.9
  • TDSNot published −0.1—
  • Sodium9 mg/L ideal up to 20 mg/L10.0
  • Calcium133 mg/L ideal 36.7–80 mg/L · counts half4.0
  • Magnesium7 mg/L ideal 16.7–30 mg/L · counts half5.0
  • Sulfate84 mg/L ideal up to 248 mg/L10.0
  • Chloride23 mg/L ideal up to 250 mg/L10.0
  • Nitrate1.7 mg/L ideal up to 10 mg/L10.0
  • BicarbonateNot published −0.1—

Each bar is out of 10 for that property. Deductions: −0.2 for missing values, −0.1 for an undated analysis. Editorial score, not a health rating. How scores work →

Mineral FactsPer litre · 8 of 11 values published
Basics
pH
7.2
Total dissolved solids
—
Minerals
Calcium
133 mg/L
Magnesium
7 mg/L
Sodium
9 mg/L
Potassium
2 mg/L
Other dissolved substances
Bicarbonate
—
Sulfate
84 mg/L
Chloride
23 mg/L
Nitrate (NO₃)
1.7 mg/L
Silica
—
— Not published by the brand · we never estimateSource: Cotswold Spring Water – 'Spring water source', typical analysis (undated) · checked 2026-10-26

Official typical analysis: Ca 133, Mg 7, K 2, Na 9, Cl 23, SO4 84, NO3 1.7 mg/L, pH 7.2. No bicarbonate or dry residue given.

How it stands out

  1. Sodium is 9 mg/L, under the 20 mg/L level the UK/EU uses for “suitable for a low-sodium diet” on natural mineral water labels.

UK/EU label thresholds met

Applied to the published numbers for information; these indications legally apply to natural mineral water labels.

  • Suitable for a low-sodium diet (sodium < 20 mg/L)

Taste notes

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  • SoftNo votes
  • CrispNo votes
  • SmoothNo votes
  • MineralNo votes
  • SaltyNo votes
  • SweetNo votes
  • BitterNo votes
  • MetallicNo votes

Ratings & reviews

Waterphile Score lab data

8.8/10

From the brand’s published mineral values. How it works

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Similar waters

  1. 1PerrierNatural mineral water · Sparkling · France Calcium160Magnesium4.2Sodium9.5Bicarbonate430Compared on 5 shared values
  2. 2RawdatainNatural mineral water · Still · Kuwait Calcium36Magnesium4.9Sodium9.9Bicarbonate58Compared on 5 shared values
  3. 3BeluNatural mineral water · Still · UK (Wales) Calcium64.5Magnesium6Sodium19.9Bicarbonate155.8Compared on 6 shared values
  4. 4HallikeldSpring water · Still · UK (England) Calcium111Magnesium26.7Sodium12.2Bicarbonate295.2Compared on 6 shared values

Computed from published numbers only: the waters whose mineral values are closest to Cotswold Spring’s on a log scale, using the values both brands publish as single numbers (at least 5). pH and nitrate are not used. Similar minerals do not mean similar taste.

Source & spring

SourceBorehole in the Cotswolds AONB (oolitic limestone), Gloucestershire, England
CountryUK (England) · all waters from the UK
Water typeSpring water · what this means
Still or sparklingStill
Data sourceCotswold Spring Water – 'Spring water source', typical analysis (undated)
Last checked 2026-10-26

Brands update their analyses from time to time, and values can differ between bottle sizes, plants and batches. Check the label on your bottle. Spotted a change? See corrections.

Where to buy

See the official Cotswold Spring website for stockists. Retailer and price links are coming later.

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Not medical advice. Waterphile shows mineral values as published by each brand, for general information only. If you have a health condition, follow a restricted diet or prepare infant formula, ask a doctor, pediatrician or health visitor.