Kirkland SignatureAlkaline Water
D· No disclosurePurified (municipal) · US municipal
TDS
Not disclosed
pH
9.5
Price per liter
$0.60/L
Disclosure grade D — No disclosure
This brand lists ingredients at most — no concentrations. You cannot compare what you cannot see; the blanks below are the point.
Mineral profile
| Analyte | mg/L |
|---|---|
| Calcium (Ca²⁺) | Not disclosed |
| Magnesium (Mg²⁺) | Not disclosed |
| Sodium (Na⁺) | Not disclosed |
| Potassium (K⁺) | Not disclosed |
| Bicarbonate (HCO₃⁻) | Not disclosed |
| Sulfate (SO₄²⁻) | Not disclosed |
| Chloride (Cl⁻) | Not disclosed |
| Silica (SiO₂) | Not disclosed |
| Fluoride (F⁻) | Not disclosed |
| Nitrate (NO₃⁻) | Not disclosed |
“Not disclosed” means the brand does not publish this value — that absence is itself a data point.
Packaging
PET plastic · 500 mL
~$0.30 typical retail for 500 mL
Provenance
Label only; mineral mg/L not disclosedLast verified 2026-07-17
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