Not just pure, but proven.
A new standard in transparency. Every batch is tested. All results are shared. Loonen is water you never have to second guess.
Loonen Water Composition
Many brands strip their water bare. We maintain a mineral balance that supports real hydration, performance, and health.
WHY WE CARE: Key for strong bones, heart health, and nerve function.
WHY WE CARE: Provides trace minerals that support hydration and cellular balance.
WHY WE CARE: Supports hydration, muscle function, and healthy blood pressure.
WHY WE CARE: Supports energy, muscles, and stress regulation — and many people don’t get enough.
WHY WE CARE: A TDS of 120 reflects healthy minerals that improve taste and hydration.
WHY WE CARE: A balanced pH of 7 helps maintain proper body chemistry and hydration.
Key Lab Results
Transparency means data you can see and understand. Below are key lab results from our latest batch test, including the top contaminants we measure and why those matter. For comprehensive, line-by-line results per batch, open the laboratory results in the PDF reports linked below.
ND = none of these analytes have been detected at or above the specified detection level
MCL = maximum contaminant level as established by the US FDA for bottled water
RL = laboratory reporting limit for method
NONE = no applicable MCL exists for that analyte as of the publication date
- RL: 0.005 ug/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.009 ug/L
WHY WE CARE: Associated with liver damage and potential cancer risk; difficult to remove from water.
- RL: 0.005 ug/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 2.0 ug/L
WHY WE CARE: Linked to thyroid effects and long-term presence in drinking water.
- RL: 0.005 ug/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.000001 ug/L
WHY WE CARE: Remains in the body for years and can disrupt hormone and immune systems.
- RL: 0.005 ug/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.006 ug/L
WHY WE CARE: Associated with elevated cholesterol, liver effects, and developmental harm.
- RL: 0.005 ug/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.00009 ug/L
WHY WE CARE: Well-studied; linked to cancer and organ toxicity even at low levels.
- RL: 0.005 ug/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.0003 ug/L
WHY WE CARE: Connected to immune suppression, thyroid issues, and certain cancers.
- RL: 0.0009 particles/mL
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Can release bisphenols under certain conditions.
- RL: 0.0009 particles/mL
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Additive migration is possible, especially with prolonged contact or heat.
- RL: 0.0009 particles/mL
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Can release trace antimony or organics after long storage or high heat.
- RL: 0.0009 particles/mL
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: May leach additives into water when stressed or heated.
- RL: 0.0009 particles/mL
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Additives can migrate over time, though generally lower risk than others.
- RL: 0.0009 particles/mL
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Can release styrene monomer, especially with heat.
- RL: 0.0009 particles/mL
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Can release toxic fluorinated compounds that affect thyroid, liver, and reproductive health.
- RL: 0.0009 particles/mL
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Breakdown products can irritate the lungs and skin and may impact hormone balance.
- RL: 0.0009 particles/mL
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: May release vinyl chloride or plasticizers during contact.
- RL: 0.5 ppb
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Endocrine-active; linked to reproductive, developmental, and metabolic effects.
- RL: 0.5 ppb
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Similar endocrine concerns to BPA with potential reproductive effects.
- RL: 0.5 ppb
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Endocrine-active substitute with emerging evidence of health impacts.
- RL: 0.0050 mg/L
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Associated with reproductive and developmental harm.
- RL: 0.0006 mg/L
- FDA LIMIT: 0.4 mg/L
- HEALTH GUIDELINE: None
WHY WE CARE: Possible liver and developmental effects; less evidence but still under review.
- RL: 0.0006 mg/L
- FDA LIMIT: 0.006 mg/L
- HEALTH GUIDELINE: None
WHY WE CARE: Linked to reproductive toxicity, liver effects, and hormone disruption.
- RL: 0.0010 mg/L
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Linked to reproductive toxicity and hormone disruption.
- RL: 0.0010 mg/L
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Used as a DBP substitute; shows similar reproductive and hormonal effects.
- RL: 0.0200 mg/L
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Potential endocrine and developmental effects.
- RL: 0.001 mg/L
- FDA LIMIT: 0.010 mg/L
- HEALTH GUIDELINE: 0.0000001 mg/L
WHY WE CARE: Known human carcinogen linked to kidney and thyroid tumors.
- RL: 0.001 mg/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.00000002 mg/L
WHY WE CARE: Suspected carcinogen; associated with DNA damage and liver effects.
- RL: 0.001 mg/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.00000004 mg/L
WHY WE CARE: Potential carcinogen with liver and developmental toxicity concerns.
- RL: 0.001 mg/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.0000002 mg/L
WHY WE CARE: Known to cause liver toxicity and cancer in animal studies.
- RL: 0.002 mg/L
- FDA LIMIT: 0.060 mg/L
- HEALTH GUIDELINE: 0.0000001 mg/L
WHY WE CARE: Group of disinfection byproducts linked to cancer and reproductive harm.
- RL: 0.001 mg/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.0000001 mg/L
WHY WE CARE: Associated with liver toxicity and increased cancer risk.
*Total Uncertainty (2σ+/-): 1
- RL: 3 pCi/L
- FDA LIMIT: 15 pCi/L
- HEALTH GUIDELINE: None
WHY WE CARE: Raises lifetime cancer risk with chronic exposure.
*Total Uncertainty (2σ+/-): 2
- RL: 4 pCi/L
- FDA LIMIT: 50 pCi/L
- HEALTH GUIDELINE: None
WHY WE CARE: Increases cancer risk through internal radiation exposure.
*Total Uncertainty (2σ+/-): 0.6
- RL: 5 pCi/L
- FDA LIMIT: 5 pCi/L
- HEALTH GUIDELINE: 0.05 pCi/L
WHY WE CARE: Can accumulate in bone and raise the risk of bone cancer.
- RL: 0.001 mg / L
- FDA LIMIT: 0.03 mg/L
- HEALTH GUIDELINE: 0.43 pCi/L
WHY WE CARE: Damages kidneys and increases cancer risk with long exposure.
- RL: 0.001 mg/L
- FDA LIMIT: 0.010 mg/L
- HEALTH GUIDELINE: 0.000004 mg/L
WHY WE CARE: Linked to cancer and organ damage; safest in non-detectable amounts.
- RL: 0.001 mg/L
- FDA LIMIT: 0.1 mg/L
- HEALTH GUIDELINE: 0.00002 mg/L
WHY WE CARE: Certain forms increase cancer risk and damage organs.
- RL: 0.005 mg/L
- FDA LIMIT: 0.2 mg/L
- HEALTH GUIDELINE: 0.150 mg/L
WHY WE CARE: Interferes with oxygen use in the body and can be rapidly fatal.
- RL: 0.05 mg/L
- FDA LIMIT: 0.7-2.4 mg/L
- HEALTH GUIDELINE: None
WHY WE CARE: Beneficial at low levels but excess can damage teeth and bones.
- RL: 0.0005 mg/L
- FDA LIMIT: 0.005 mg/L
- HEALTH GUIDELINE: 0.0002 mg/L
WHY WE CARE: Powerful neurotoxin; especially harmful to children.
- RL: 0.0002 mg/L
- FDA LIMIT: 0.002 mg/L
- HEALTH GUIDELINE: 0.0012 mg/L
WHY WE CARE: Damages the nervous system and can impair development.
- RL: 0.05 mg/L
- FDA LIMIT: 10 mg/L (as nitrogen)
- HEALTH GUIDELINE: 0.14 mg/L
WHY WE CARE: High levels reduce oxygen delivery in infants and can stress the body.
- RL: 0.05 mg/L
- FDA LIMIT: 1 mg/L (as nitrogen)
- HEALTH GUIDELINE: None
WHY WE CARE: Elevated levels impair oxygen transport and threaten infant health.
- RL: 0.001 mg/L
- FDA LIMIT: 1.0 mg/L
- HEALTH GUIDELINE: 0.3 mg/L
WHY WE CARE: Excess intake can cause gastrointestinal distress and organ damage.
- RL: 0.01 mg/L
- FDA LIMIT: 0.3 mg/L
- HEALTH GUIDELINE: None
WHY WE CARE: Causes staining and taste issues and may promote oxidative stress at high levels.
- RL: 0.002 mg/L
- FDA LIMIT: 0.05 mg/L
- HEALTH GUIDELINE: 0.1 mg/L
WHY WE CARE: Elevated levels may impair neurological development and cause staining.
- RL: 0.25 mg/L
- FDA LIMIT: 250.0 mg/L
- HEALTH GUIDELINE: None
WHY WE CARE: Can cause taste issues and diarrhea at high levels.
- RL: 0.005 mg/L
- FDA LIMIT: 5.0 mg/L
- HEALTH GUIDELINE: None
WHY WE CARE: Excess causes metallic taste and gastrointestinal upset.
- RL: 0.0005 mg/L
- FDA LIMIT: 0.007 mg/L
- HEALTH GUIDELINE: None
WHY WE CARE: Increases cancer potential and harms organs with long exposure.
- RL: 0.0005 mg/L
- FDA LIMIT: 0.005 mg/L
- HEALTH GUIDELINE: 0.0004 mg/L
WHY WE CARE: Probable carcinogen that contaminates groundwater.
- RL: 0.0005 mg/L
- FDA LIMIT: 0.005 mg/L
- HEALTH GUIDELINE: 0.00015 mg/L
WHY WE CARE: Known human carcinogen associated with blood cancers.
- RL: 0.0005 mg/L
- FDA LIMIT: 0.005 mg/L
- HEALTH GUIDELINE: 0.0001 mg/L
WHY WE CARE: Probable carcinogen that damages the liver and kidneys.
- RL: 0.0005 mg/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.0004 mg/L
WHY WE CARE: Linked to increased cancer risk and liver and kidney toxicity from long-term exposure.
- RL: 0.0005 mg/L
- FDA LIMIT: 0.005 mg/L
- HEALTH GUIDELINE: 0.00006 mg/L
WHY WE CARE: Probable carcinogen; also harms the liver and nervous system.
- RL: 0.0005 mg/L
- FDA LIMIT: 0.005 mg/L
- HEALTH GUIDELINE: 0.0004 mg/L
WHY WE CARE: Known human carcinogen; damages the liver and immune system.
- RL: 0.0003 mg/L
- FDA LIMIT: 0.002 mg/L
- HEALTH GUIDELINE: 0.00005 mg/L
WHY WE CARE: Known human carcinogen strongly linked to liver cancer.
- RL: 0.069 ug/L
- FDA LIMIT: None
- HEALTH GUIDELINE: 0.35 ug/L
WHY WE CARE: Probable human carcinogen that moves readily through groundwater.
- RL: 0.098 ug/L
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Persistent, bioaccumulative pesticide linked to cancer and endocrine disruption.
- RL: 0.0098 ug/L
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Banned pesticide that causes nervous system damage and persists in the environment.
- RL: 0.02 ug/L
- FDA LIMIT: 0.2 ug/L
- HEALTH GUIDELINE: 0.007 ug/L
WHY WE CARE: Potent carcinogen formed during high-temperature processes.
- RL: 0.59 ug/L
- FDA LIMIT: 6.0 ug/L
- HEALTH GUIDELINE: None
WHY WE CARE: Common plasticizer tied to reproductive toxicity and hormone disruption.
- RL: 0.0098 ug/L
- FDA LIMIT: None
- HEALTH GUIDELINE: None
WHY WE CARE: Highly toxic, long-lasting pesticide associated with neurological and liver effects.
- RL = 0.049 µg/L
- FDA LIMIT = 1.0 µg/L
- HEALTH GUIDELINE = 0.03 µg/L
WHY WE CARE: Persistent pollutant linked to cancer and thyroid effects.
- RL: 0.0098 ug/L
- FDA LIMIT: 0.2 ug/L
- HEALTH GUIDELINE: 0.032 ug/L
WHY WE CARE: Neurotoxic and possibly carcinogenic; can disrupt hormones.
- RL = 0.0099 ug/L
- FDA LIMIT = 0.2 µg/L
- HEALTH GUIDELINE = 0.0017 ug/L
WHY WE CARE: Causes reproductive harm and cancer; persistent in groundwater.
- RL = 0.099 ug/L
- FDA LIMIT =2.0 ug/L
- HEALTH GUIDELINE = 0.03 ug/L
WHY WE CARE: Persistent and bioaccumulative; linked to cancer and liver damage.
- RL = 0.04 ug/L
- FDA LIMIT = 1.0 ug/L
- HEALTH GUIDELINE = 0.3 ug/L
WHY WE CARE: Carcinogenic and damaging to liver and kidneys.
- RL = 0.099 ug/L
- FDA LIMIT = 1.0 ug/L
- HEALTH GUIDELINE = 0.3 ug/L
WHY WE CARE: Carcinogenic and damaging to liver and kidneys.
- RL = 0.5 ug/L
- FDA LIMIT = 3.0 ug/L
- HEALTH GUIDELINE = 0.03 ug/L
WHY WE CARE: Extremely persistent mixture linked to cancer and immune damage.
Our Source
Natural springs in southern California. Protected catchment and controlled transport preserve natural character.
How It’s Bottled
Proprietary filtration process removes impurities. Careful mineral balance preserves a clean, natural taste. All processing and bottling takes place in a sealed, contact-free line.
How It’s Tested
Rigorous third-party testing, at the source, from purification to the final sealed bottles. Transparency shouldn’t be optional.
Date: November 11, 2025
Date: November 11, 2025
All analyses were conducted using EPA-approved methods by accredited independent third-party laboratories. Each laboratory is certified to perform testing in accordance with FDA and EPA bottled water standards. Because we monitor an extensive list of parameters, including many that go beyond FDA requirements, we partner with multiple specialized laboratories to ensure the most accurate and comprehensive results. A complete listing of analytical methods is available upon request.
To obtain additional information relating to water quality and lab results, contact Loonen at 1‑800‑934‑1428 or sip@loonen.com
For FDA product recall information, visit Recalls, Market Withdrawals and Safety Alerts (http://www.fda.gov/opacom/7alerts.html)
