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EartH2O

EartH2O is an Oregon spring water from Opal Springs, an artesian spring at the bottom of the Crooked River canyon. — as described by the brand

8.1/10Waterphile Score8/9 properties published
  • pH8.14 ideal 6.5–8.59.6
  • TDS98 mg/L ideal 225–500 mg/L5.0
  • Sodium12.2 mg/L ideal up to 20 mg/L10.0
  • Calcium5.8 mg/L ideal 36.7–80 mg/L · counts half5.0
  • Magnesium5.83 mg/L ideal 16.7–30 mg/L · counts half5.0
  • Sulfate1.1 mg/L ideal up to 248 mg/L10.0
  • Chloride1.8 mg/L ideal up to 250 mg/L10.0
  • Nitrate1.06248 mg/L as N ideal up to 10 mg/L10.0
  • BicarbonateNot published −0.1—

Each bar is out of 10 for that property. Deductions: −0.1 for missing values, −0.3 for an analysis over 3 years old. Editorial score, not a health rating. How scores work →

Mineral FactsPer litre · 8 of 11 values published
Basics
pH
8.14
Total dissolved solids TDS
98 mg/L
Minerals
Calcium
5.8 mg/L
Magnesium
5.83 mg/L
Sodium
12.2 mg/L
Potassium
1.8 mg/L
Other dissolved substances
Bicarbonate
—
Sulfate
1.1 mg/L
Chloride
1.8 mg/L
Nitrate (NO₃)
0.24 mg/L as N
Silica
—
— Not published by the brand · we never estimateSource: EartH2O 2019-2020 Water Quality Report (The Sweetwater Company), finished spring water column (hosted by Consumer Reports) · checked 2026-10-26

2019-2020 report, finished bottle of spring water: pH 8.14, TDS 98, Ca 5.8, Mg 5.83, Na 12.2, K 1.8, nitrate-N 0.24, sulfate 1.1, chloride 1.8, fluoride 0.1 mg/L, conductivity 124 µS/cm. The source sample reads pH 8.22, TDS 95.

How it stands out

  1. Sodium is 12.2 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

No taste notes yet. Soon you will be able to say how EartH2O tastes to you. Results will appear here once people have voted; nothing is shown until then.

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

Ratings & reviews

Waterphile Score lab data

8.1/10

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

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  3. 3RightWaterSpring water · Still · USA Calcium11Magnesium3.8Sodium4.6Bicarbonate61Compared on 7 shared values
  4. 4Castle RockSpring water · Still · USA Calcium11Magnesium5Sodium7Compared on 6 shared values

Computed from published numbers only: the waters whose mineral values are closest to EartH2O’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

SourceOpal Springs, Culver, Oregon
CountryUSA · all waters from the USA
Water typeSpring water · what this means
Still or sparklingStill
Data sourceEartH2O 2019-2020 Water Quality Report (The Sweetwater Company), finished spring water column (hosted by Consumer Reports)
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 EartH2O 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.