Chemical Analysis
When you choose a drinking water for your family, or your team, taste is only part of the story. You also want to know exactly what’s in your water—and what isn’t.
At Eldorado Springs, we make our full water analysis available because we believe great-tasting, award-winning spring water should also come with complete transparency. The numbers behind our water confirm what you can already taste in your glass: naturally balanced minerals, a gentle alkaline pH, low total dissolved solids, and none detected for the most concerning contaminants.
Below, we explain what our water test results mean in plain language so you can feel confident in the quality and safety of Eldorado natural spring water.
Naturally Alkaline & Mineral-Balanced
Eldorado spring water is naturally alkaline, with a pH of approximately 7.4. That’s very close to the pH of the human body and slightly above neutral on the pH scale.
In simple terms, this means:
- Naturally alkaline water (around 7.4 pH) can help support your body’s normal pH balance.
- Our pH falls comfortably within the recommended range for drinking water, with no need for artificial adjustment or added chemicals.
- The alkalinity comes from naturally occurring minerals and bicarbonate in the water—not from additives.
Along with its pH, Eldorado features a moderate level of minerals such as calcium, magnesium, potassium, and bicarbonate. These naturally occurring electrolytes contribute to:
- A smooth, refreshing taste
- A clean, crisp mouthfeel
- Gentle support for everyday hydration
Where can I see the full Eldorado Springs water analysis?
The complete Eldorado Springs water analysis appears in the detailed table below on this page. It lists each measured constituent, Eldorado’s test result, and the corresponding legal threshold. Reviewing this table alongside the explanations above lets you see both the data and what it means for taste, safety, and everyday use.
Safety, Compliance & Regular Inspections
Taste and mineral balance matter—but safety always comes first.
Eldorado Artesian Springs, Inc. is regularly inspected by multiple regulatory agencies, including:
- The U.S. Food and Drug Administration (FDA)
- Colorado Department of Public Health and Environment (often accompanied by the Boulder County Health Department)
- The Department of the Army (for military food sales)
Our water analysis shows that a long list of substances of concern are “ND,” or “None Detected,” at extremely sensitive testing limits. That includes:
- Arsenic, lead, mercury, and other heavy metals of concern
- Pesticides and herbicides
- Petroleum-based volatile organic compounds (VOCs)
- Uranium and other radioactive contaminants
- Various industrial chemicals and byproducts
For the few substances that do show measurable levels (such as nitrate, sulfate, and naturally occurring fluoride), our results are significantly below the strict legal thresholds established for safe drinking water.
What this means in everyday terms:
- Our water meets or exceeds all applicable federal and state standards for bottled drinking water.
- Regular inspections and testing help ensure ongoing compliance and consistency.
- You can review the full Eldorado Springs water analysis and see exactly how our results compare to legal limits
Why Mineral Content Matters for Taste
The same water analysis that demonstrates safety also explains why Eldorado tastes so good.
Low to moderate TDS
With total dissolved solids at 73 mg/L, Eldorado has enough mineral content to support flavor, but not so much that it tastes “salty,” “metallic,” or overly heavy. This balance helps produce the smooth, refreshing taste that has earned gold medal recognition in blind taste tests.
Calcium and magnesium
These minerals gently influence both taste and mouthfeel. While the amounts in our water are modest, they contribute to the rounded, clean finish that many people describe as “crisp but not harsh.”
Natural bicarbonate and alkalinity
Bicarbonate works hand-in-hand with our natural alkalinity (pH 7.4) to buffer acidity and create a pleasant, easy-drinking profile. It’s part of why Eldorado pairs so well with food, coffee, tea, and crafted beverages.
No chlorine or added chemicals
Because Eldorado is sourced from a protected spring and bottled at the source, we do not rely on disinfecting chemicals like chlorine to make the water safe. That means you won’t experience chlorine odors or flavors that can be present in municipal tap water.
Micro plastics
Independent analysis has confirmed that Eldorado Natural Spring Water contains no detectable microplastics, offering reassuring clarity at a time when concerns about microplastics in drinking water are making headlines everywhere. With so much recent attention and debate around this issue, Eldorado stands out by delivering naturally pure spring water backed by verified testing.
Put simply: our water analysis confirms that Eldorado is both safe and naturally suited to great taste.
| Constituent | Eldorado's Results | Legal Threshold Amount |
|---|---|---|
| pH | 7.4 | 6.5-8.5 |
| Total Dissolved Solids | 73 | 500 |
| Color | ND | 15 units |
| Turbidity | ND | 1 NTU |
| Arsenic | ND | 0.010 |
| Chloride | ND | 250 |
| Fluoride* | .20 | 4 |
| Nitrogen, Nitrate-Nitrite | .66 | 10 |
| Sulfate | 17 | 250 |
| Cyanide | ND | .1 |
| Phenolics | ND | - |
| Aluminum | ND | .2 |
| Bicarbonate | 38 | - |
| Calcium | 10 | - |
| Chromium | ND | .1 |
| Copper | ND | 1 |
| Iron | ND | .3 |
| Magnesium | 3 | - |
| Manganese | ND | .05 |
| Potassium | 2.7 | - |
| Silica | 15 | - |
| Silver | .005 | .1 |
| Sodium | 6 | - |
| Zinc | ND | 5 |
| Lead | ND | .005 |
| Mercury | ND | .002 |
| Nickel | ND | - |
| Pesticides | ND | .00005 |
| Herbicides | ND | .00005 |
| VOC's (petroleum compounds) | ND | .00005 |
| Uranium | ND | .030 |
| Micro plastics | ND | - |
*Naturally occuring fluoride. Check out our blog post about fluoride for more information.

What Our Water Test Results Show
The detailed chemical analysis below may look technical, but the takeaway is straightforward: Eldorado water is clean, low in total dissolved solids, and free from detected levels of common harmful contaminants.
Here’s what the key values mean for you:
pH (7.4)
Our water is slightly alkaline, sitting at 7.4 on a scale where 7.0 is neutral. This falls well within the accepted range for safe, pleasant-tasting drinking water and reflects the natural balance created by Eldorado Canyon’s geology.
Total Dissolved Solids (TDS: 73 mg/L)
Total dissolved solids measure how much mineral content is in the water. With a TDS of 73 mg/L—far below the legal threshold of 500 mg/L—Eldorado is considered a low-to-moderately mineralized water. This level supports flavor and mouthfeel without tasting “heavy” or overly mineral.
Color and Turbidity (None Detected)
“Color” and “turbidity” indicate clarity. Our water shows no detectable color and no measurable turbidity, meaning it is clear and bright, with no visible cloudiness. That clarity is one reason Eldorado looks as pure as it tastes.
Key minerals and electrolytes
- Calcium and magnesium: Present in moderate amounts, these naturally occurring minerals contribute to taste and help create a balanced, “soft but not flat” feel on the palate.
- Potassium and bicarbonate: These components help shape the water’s natural alkalinity and support its smooth finish.
- Other trace elements: Small amounts of silica and other trace minerals are part of the water’s natural fingerprint and support its distinct flavor profile.
Very low fluoride, naturally occurring
A small amount of fluoride occurs naturally in our spring source. The level is low and remains well below the legal threshold for drinking water. We do not add fluoride to Eldorado water; any fluoride present is naturally occurring.
Choosing a bottled spring water shouldn’t require guesswork. With Eldorado, you get:
A complete, transparent water analysis
- Naturally alkaline spring water at approximately 7.4 pH
- Mineral content that supports a clean, refreshing taste
- Results that consistently meet or are well below legal thresholds
Review the detailed chemical analysis below, then experience how the numbers translate into taste, trust, and everyday hydration.
Whether you’re a Colorado household, an office looking for a reliable water service, or a beverage producer who needs consistent spring water quality, Eldorado’s combination of science, safety, and flavor makes it an exceptional choice.
FAQ: Eldorado Springs Water Analysis
What is the pH of Eldorado spring water?
Eldorado natural spring water is naturally alkaline, with a pH of about 7.4. That means it’s slightly above neutral on the pH scale and well within the ideal range for drinking water. The alkalinity comes from naturally occurring minerals and bicarbonate in the water—not from additives.
Is Eldorado water safe to drink?
Absolutely. The Eldorado Springs water analysis shows that our water consistently meets or is well below all legal thresholds for bottled drinking water. Many contaminants that people worry about—such as arsenic, lead, pesticides, herbicides, petroleum-based VOCs, and uranium—are listed as “None Detected” in our test results, even at very low detection limits.
What is the mineral content of Eldorado spring water?
Eldorado water contains a balanced mix of naturally occurring minerals, including calcium, magnesium, potassium, bicarbonate, and silica. Total dissolved solids (TDS) measure at 73 mg/L, which is relatively low compared to many mineral waters. This gives Eldorado a clean, refreshing taste with gentle mineral support, rather than a heavy or salty flavor.
Does Eldorado contain fluoride or added chemicals?
Eldorado contains a small amount of naturally occurring fluoride, well below the legal threshold for safe drinking water. We do not add fluoride or other chemicals like chlorine to our spring water. Our water is bottled at the source, and the taste profile comes directly from the natural filtration and mineral composition of the spring.
How does Eldorado’s water analysis compare to legal limits?
For each tested constituent, we compare Eldorado’s result to the applicable legal threshold. In all cases, our values are at or below those limits—and for many concerning substances (such as arsenic, lead, pesticides, herbicides, VOCs, and uranium), tests show “None Detected.” This demonstrates a strong margin of safety and confirms the high quality of our Colorado spring water.
Is Eldorado water considered alkaline spring water?
Yes. With a pH of approximately 7.4, Eldorado is naturally alkaline spring water. This alkalinity is a direct result of its mineral content and the geology of Eldorado Canyon. We don’t artificially raise the pH; we simply bottle the water as it emerges from the artesian spring.
Why does low total dissolved solids (TDS) matter?
Total dissolved solids give you a snapshot of how much mineral content is in the water. Eldorado’s TDS level of 73 mg/L reflects a low to moderate mineralization. This is high enough to support flavor and mouthfeel, but low enough to keep the taste light and crisp. Many people looking for clean-tasting, everyday drinking water prefer a TDS in this range.
Is Eldorado water good for everyday hydration and wellness?
Yes. Eldorado’s mineral-balanced profile, natural alkalinity, and clean analysis make it a strong choice for daily hydration. While water alone is not a cure or treatment for health conditions, many customers choose Eldorado because it tastes great, encourages them to drink more water, and comes with a transparent water analysis that supports their trust in its quality.
How often is Eldorado Springs water tested and inspected?
Our water is subject to ongoing internal testing as well as regular inspections and reviews by agencies including the FDA, the Colorado Department of Public Health and Environment (often with the Boulder County Health Department), and the Department of the Army for military food sales. This combination of frequent testing and third-party oversight helps ensure consistent water quality and safety.
pH Balanced
Eldorado Natural Spring Water can assist you in rebalancing your body pH level.
"As an athlete I understand the importance of staying hydrated, but even more I understand the importance of staying healthy. That is why I drink Eldorado Natural Springs Water. It has the electrolytes that I need to keep going strong."
– Beth, Colorado


