Purified Drinking Water

Name: Purified Drinking Water
Brand: Kirkland Signature

68Okay

Contaminants · 86

Measured by an independent lab and compared against published safety limits.

Total Trihalomethanes0.6 ppbof 80 ppb

1% of the limitFDA bottled-water Standard of Quality, 21 CFR 165.110(b)(4)(iii) — 0.080 mg/L total trihalomethanes (= EPA Stage 1 DBP MCL). CORRECTED 2026-09-24 from 10 ppb: 0.010 mg/L is the BROMATE limit, not TTHM's.

1,1-dichloroethyleneNDnone found

Not detected

1,1,1-trichloroethaneNDnone found

Not detected

1,1,2-trichloroethaneNDnone found

Not detected

1,1,2,2-tetrachloroethaneNDnone found

Not detected

1,2-dibromo-3-chloropropaneNDnone found

Not detected

1,2-dichlorobenzeneNDnone found

Not detected

1,2-dichloroethaneNDnone found

Not detected

1,2-dichloropropaneNDnone found

Not detected

1,2,4-trichlorobenzeneNDnone found

Not detected

1,4-dichlorobenzeneNDnone found

Not detected

2,3,7,8-tcddNDnone found

Not detected

2,4-dNDnone found

Not detected

2,4,5-tpNDnone found

Not detected

AlachlorNDnone found

Not detected

AluminumNDof 200 ppb

Not detectedFDA bottled-water Standard of Quality (secondary/aesthetic), 21 CFR 165.110(b) — 0.2 mg/L. NOTE: this is a bottled-water level; it is not an FDA limit for aluminum in solid foods, where no comparable federal limit exists.

AntimonyNDof 6 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.006 mg/L

ArsenicNDof 10 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.010 mg/L (= EPA MCL)

AtrazineNDnone found

Not detected

BariumNDof 2 ppm

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 2 mg/L

BentazonNDnone found

Not detected

BenzeneNDnone found

Not detected

Benzo(a)PyreneNDnone found

Not detected

BerylliumNDof 4 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.004 mg/L

Bis (2-ethylhexyl) AdipateNDnone found

Not detected

BromateNDof 10 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.010 mg/L

CadmiumNDof 5 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.005 mg/L

CarbofuranNDnone found

Not detected

Carbon TetrachlorideNDnone found

Not detected

ChloramineNDof 4 ppm

Not detectedFDA bottled-water residual-disinfectant limit, 21 CFR 165.110(b)(4)(iii) — chloramine 4.0 mg/L as Cl2 (= EPA MRDL).

ChlordaneNDnone found

Not detected

ChlorineNDnone found

Not detected

Chlorine DioxideNDof 800 ppb

Not detectedFDA bottled-water residual-disinfectant limit, 21 CFR 165.110(b)(4)(iii) — chlorine dioxide 0.8 mg/L as ClO2 (= EPA MRDL).

ChloriteNDnone found

Not detected

ChlorobenzeneNDnone found

Not detected

ChromiumNDof 100 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.1 mg/L total chromium (= EPA MCL)

cis-1,2-dichloroetheneNDnone found

Not detected

CopperNDof 1 ppm

Not detectedFDA bottled-water Standard of Quality (secondary), 21 CFR 165.110(b) — 1 mg/L

CyanideNDof 200 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.2 mg/L

DalaponNDnone found

Not detected

Di(2-ethylhexyl) Phthalate (DEHP)NDof 6 ppb

Not detectedUS EPA drinking-water MCL, 40 CFR 141.61(c) — 0.006 mg/L. Applied to all foods as the TIGHTEST published DEHP number; the EU food-contact limit is looser (Reg. (EU) 10/2011 as amended by 2023/1442: SML 0.6 mg/kg, plus the 0.6 mg/kg DEHP-equivalent group limit with DBP/BBP/DIBP).

DinosebNDnone found

Not detected

DiquatNDnone found

Not detected

EndothallNDnone found

Not detected

EndrinNDnone found

Not detected

EthylbenzeneNDnone found

Not detected

Ethylene DibromideNDnone found

Not detected

FluorideNDof 2 ppm

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 2.0 mg/L domestic non-carbonated (temperature-dependent 1.4–2.4 mg/L)

GlyphosateNDof 160 ppb

Not detectedEWG children's health benchmark 160 ppb (0.01 mg/day in a 60 g serving). EPA tolerance for glyphosate on oats is far higher at 30 ppm (30,000 ppb), 40 CFR 180.364.

Haloacetic Acids (Haa5)NDnone found

Not detected

HeptachlorNDnone found

Not detected

Heptachlor EpoxideNDnone found

Not detected

HexachlorobenzeneNDnone found

Not detected

HexachlorocyclopentadieneNDnone found

Not detected

IronNDof 300 ppb

Not detectedFDA bottled-water Standard of Quality (secondary/aesthetic), 21 CFR 165.110(b) — 0.3 mg/L

LeadNDof 5 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.005 mg/L

LindaneNDnone found

Not detected

ManganeseNDof 50 ppb

Not detectedFDA bottled-water Standard of Quality (secondary/aesthetic), 21 CFR 165.110(b) — 0.05 mg/L

MercuryNDof 2 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.002 mg/L

MethoxychlorNDnone found

Not detected

Methylene ChlorideNDnone found

Not detected

NickelNDof 100 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.1 mg/L

NitrateNDof 10 ppm

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 10 mg/L AS NITROGEN (= EPA MCL). Readings must also be as N, not as nitrate ion; the as-NO3 equivalent would be ~44 mg/L.

NitriteNDof 1 ppm

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 1 mg/L as N

OxamylNDnone found

Not detected

P1 Gross alphaNDnone found

Not detected

PentachlorophenolNDnone found

Not detected

PhenolsNDnone found

Not detected

PicloramNDnone found

Not detected

Polychlorinated BiphenylsNDnone found

Not detected

Radium-226, Radium-228 CombinedNDnone found

Not detected

SeleniumNDof 50 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.05 mg/L (= EPA MCL)

SilverNDof 100 ppb

Not detectedFDA bottled-water Standard of Quality (secondary), 21 CFR 165.110(b) — 0.1 mg/L

SimazineNDnone found

Not detected

StyreneNDnone found

Not detected

TetrachloroethyleneNDnone found

Not detected

ThalliumNDof 2 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.002 mg/L

TolueneNDof 1 ppm

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — toluene 1 mg/L (= EPA MCL).

Total Nitrate + Nitrite-nitrogenNDof 10 ppm

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — total nitrate + nitrite 10 mg/L AS NITROGEN (= EPA MCL).

Total XylenesNDnone found

Not detected

ToxapheneNDnone found

Not detected

trans-1,2-dichloroethyleneNDnone found

Not detected

TrichloroethyleneNDnone found

Not detected

UraniumNDof 30 ppb

Not detectedFDA bottled-water Standard of Quality, 21 CFR 165.110(b) — 0.030 mg/L (= EPA MCL)

Vinyl ChlorideNDnone found

Not detected

ZincNDof 5 ppm

Not detectedFDA bottled-water Standard of Quality (secondary/aesthetic), 21 CFR 165.110(b) — 5 mg/L

Ingredients · 13

GoodCautionAvoid

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Healthier swaps

Same shelf, cleaner ingredients

Nutrition facts

Nutrient	Per 100ml	Per serving
Calories	0 kcal	0 kcal
Fat	0 g	0 g
Saturated fat	0 g	0 g
Carbohydrates	0 g	0 g
Sugars	0 g	0 g
Fiber	0 g	0 g
Protein	0 g	0 g
Sodium	0 g	0 g

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Common questions

Is Kirkland Signature Purified Drinking Water healthy?

Kirkland Signature Purified Drinking Water scores 68/100 on Tallow — our okay band. That number comes from what is on the label: the ingredients, how processed it is, and what it is packaged in. Per serving it carries 0g fiber, 0g protein and 0g sugar. It is not a verdict on your diet — Tallow does not weigh calories, portion size or how often you eat it, so a high score means the ingredients are clean, not that the food is unlimited.

What is in Kirkland Signature Purified Drinking Water?

Kirkland Signature Purified Drinking Water lists 13 ingredients, starting with Purified Water, Potassium Bicarbonate, Sodium Bicarbonate, Calcium Citrate and Sodium Chloride. Ingredients are listed in descending order by weight, so the first few make up most of what you are eating.

How many calories are in Kirkland Signature Purified Drinking Water?

0 kcal per serving, or 0 kcal per 100ml. Calories are only part of the picture — Tallow scores Kirkland Signature Purified Drinking Water on what the ingredients are, not how many calories they carry.

Does Kirkland Signature Purified Drinking Water contain seed oils?

No. Nothing in Kirkland Signature Purified Drinking Water’s ingredient list matches a seed oil — canola, soybean, corn, cottonseed, grapeseed, sunflower, safflower, rice bran or peanut oil, or an unspecified "vegetable oil".

How processed is Kirkland Signature Purified Drinking Water?

Kirkland Signature Purified Drinking Water is NOVA group 1: unprocessed or minimally processed. NOVA runs 1 to 4, where 1 is whole food and 4 is ultra-processed.

How does Kirkland Signature Purified Drinking Water compare to other water?

At 68/100 Kirkland Signature Purified Drinking Water lands mid-scale — below the typical score in water, but clear of the bottom band. A higher-scoring option in water is Great Value Purified Drinking Water at 100/100.

Is Kirkland Signature Purified Drinking Water organic?

Kirkland Signature Purified Drinking Water is not certified organic in our data.

Has Kirkland Signature Purified Drinking Water been lab tested?

Yes. 86 substances in Kirkland Signature Purified Drinking Water have a laboratory result on file — see the Contaminants section above for each reading and the limit it was measured against.

Does Kirkland Signature Purified Drinking Water contain heavy metals?

No. A lab tested Kirkland Signature Purified Drinking Water for lead, arsenic, cadmium, mercury, antimony, chromium and 2 others and found none above its detection limit.

Does Kirkland Signature Purified Drinking Water contain glyphosate?

No. A lab tested Kirkland Signature Purified Drinking Water for glyphosate and found none above its detection limit.

Does Kirkland Signature Purified Drinking Water contain phthalates?

No. A lab tested Kirkland Signature Purified Drinking Water for DEHP and found none above its detection limit.

Full methodology: how we score products.

Purified Drinking Water

Breakdown

Ingredients

Packaging

Contaminants · 86

Ingredients · 13

Healthier swaps

Nutrition facts

Common questions

Is Kirkland Signature Purified Drinking Water healthy?

What is in Kirkland Signature Purified Drinking Water?

How many calories are in Kirkland Signature Purified Drinking Water?

Does Kirkland Signature Purified Drinking Water contain seed oils?

How processed is Kirkland Signature Purified Drinking Water?

How does Kirkland Signature Purified Drinking Water compare to other water?

Is Kirkland Signature Purified Drinking Water organic?

Has Kirkland Signature Purified Drinking Water been lab tested?

Does Kirkland Signature Purified Drinking Water contain heavy metals?

Does Kirkland Signature Purified Drinking Water contain glyphosate?

Does Kirkland Signature Purified Drinking Water contain phthalates?