Compare / All waters / Eldorado Natural Spring Water

Eldorado Natural Spring Water

Eldorado Natural Spring Water is bottled in Eldorado Springs, Colorado, from springs at the foot of Eldorado Canyon, and is Colorado's best-known local spring water. — as described by the brand

8.6/10Waterphile Score9/9 properties published

pH7.4 ideal 6.5–8.510.0
TDS73 mg/L ideal 225–500 mg/L5.0
Sodium6 mg/L ideal up to 20 mg/L10.0
Calcium10 mg/L ideal 36.7–80 mg/L · counts half5.0
Magnesium3 mg/L ideal 16.7–30 mg/L · counts half5.0
Sulfate17 mg/L ideal up to 248 mg/L10.0
ChlorideND mg/L ideal up to 250 mg/L10.0
Nitrate2.92182 mg/L as N ideal up to 10 mg/L10.0
Bicarbonate38 mg/L ideal 30–396.6 mg/L · counts half10.0

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

Mineral FactsPer litre · 10 of 11 values published

Basics

7.4

Total dissolved solids TDS

73 mg/L

Minerals

Calcium

10 mg/L

Magnesium

3 mg/L

Sodium

6 mg/L

Potassium

2.7 mg/L

Other dissolved substances

Bicarbonate

38 mg/L

Sulfate

17 mg/L

Chloride

Not detected

Nitrate (NO₃)

0.66 mg/L as N

Silica

15 mg/L

— Not published by the brand · we never estimateSource: eldoradosprings.com – Eldorado Springs Water Chemical Analysis (undated web table) · checked 2026-10-26

Official table: pH 7.4, TDS 73, chloride ND, fluoride 0.20 (natural), nitrate-nitrite as N 0.66, sulfate 17, bicarbonate 38, calcium 10, magnesium 3, potassium 2.7, silica 15, sodium 6 mg/L; contaminants incl. microplastics ND. The nitrate figure is 'Nitrogen, Nitrate-Nitrite' (as N), stored as nitrate-N. No analysis date on the page.

How it stands out

Sodium is 6 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 Eldorado Natural Spring Water 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

8.6/10

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

Taste visitors

No ratings yet. Be the first.

How does Eldorado Natural Spring Water taste to you?

Not for meLove it

Similar waters

Computed from published numbers only: the waters whose mineral values are closest to Eldorado Natural Spring Water’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

Source	Eldorado Canyon, near Boulder, Colorado
Country	USA · all waters from the USA
Water type	Spring water · what this means
Still or sparkling	Still
Data source	eldoradosprings.com – Eldorado Springs Water Chemical Analysis (undated web table) 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 Eldorado Natural Spring Water website for stockists. Retailer and price links are coming later.

Compare Eldorado Natural Spring Water with

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.