Deer Park vs Mountain Valley: which water is healthier?
Updated Β· Scores from third-party lab reports Β· How we score
Mountain Valley is the healthier choice, scoring 68/100 versus 59/100 for Deer Park. The biggest differences are packaging material and contaminants.

Deer Park
Deer Park Spring Water Plastic Bottle
59
Mountain Valley
Mountain Valley Spring Water Glass Bottle
68Side-by-side comparison
| Deer Park | Mountain Valley | |
|---|---|---|
| Purity score | 59/100 | 68/100 |
| Product compared | Deer Park Spring Water Plastic Bottle | Mountain Valley Spring Water Glass Bottle |
| Type | Still | Still |
| Water source | Spring | Mountain Spring |
| Packaging | Plastic | Glass |
| Microplastics risk | High | Low |
| Lab tested | Yes | Yes |
| PFAS tested | Yes | Yes |
| Contaminants flagged | 13 | 5 |
| pH | 6.55 | 8.2 |
| TDS (minerals) | 120 ppm | 202 ppm |
| Fluoride | 0 mg/L | β |
Score breakdown
| Factor | Deer Park | Mountain Valley |
|---|---|---|
| Lab report indexed | 45/45 | 45/45 |
| Contaminants | 0/50 | 2/50 |
| Water source | 25/25 | 25/25 |
| Mineral preservation | 17/17 | 17/17 |
| Packaging material | 2/22 | 22/22 |
| Cap material | 7/7 | 0/7 |
| PFAS testing | 5/5 | 5/5 |
Each brand is represented by its most popular product. See all products from Deer Park and Mountain Valley.
Frequently asked questions
Which is better, Deer Park or Mountain Valley?
Mountain Valley is the healthier choice, scoring 68/100 versus 59/100 for Deer Park. The biggest differences are packaging material and contaminants.
Is Deer Park or Mountain Valley better for avoiding microplastics?
Deer Park (plastic) has a high microplastics risk and Mountain Valley (glass) has a low risk, based on packaging material.
Which has more minerals, Deer Park or Mountain Valley?
Mountain Valley has more dissolved minerals (202 ppm TDS vs 120 ppm).