Castle Rock Glass Water Glass Bottle

About

Castle Rock Water is a natural spring water sourced from pristine mountain springs. It is rich in essential minerals and promotes hydration, but excessive consumption may lead to mineral imbalance.

Score breakdown

How this water earned its 71/100.

• Lab report indexed · Indexed45/45
• Contaminants · 4 Flagged0/50
• Water source · Mountain Spring25/25
• Mineral preservation · No Mineral Stripping17/17
• Packaging material · Glass22/22
• Cap material · Aluminum Screw7/7
• PFAS testing · Tested5/5

Lab reports

Independent testing data backing this product's score.

• 📄Castle Rock Water Quality Report 2024
• 📄 Castle Rock PFAS Report 2024
• 📄Castle Rock Water Quality Report 2025

Filtration & treatment

Contaminants

• Gross Beta

  0.808 pCi/L

  Internal tissue damage, increased cancer risk, and potential harm to the thyroid.

  Legal limit: 4

• Radium 228

  0.501 pCi / L

  Radioactivity, carcinogenic potential, radiation poisoning risk, contamination hazard

  Legal limit: 5 · Health guideline: 0.05

• Radium 226

  0.845 pCi / L

  Radioactive contamination, high radiotoxicity, carcinogenicity, bone deposition leading to bone cancer, radiation sickness

  Legal limit: 5 · Health guideline: 0.05

Minerals & nutrients

• Chloride

  4.3 mg/L

  Supports electrolyte balance, acid-base homeostasis, and proper nerve and muscle function

• Silica

  43 mg/L

  Prevents clumping and improves texture in powdered products

• Calcium

  10 mg/L

  Supports bone health, muscle contraction, nerve signaling

• Magnesium

  5.1 mg/L

  Supports muscle and nerve function, contributes to bone health, involved in enzymatic reactions

• Sodium

  7 mg/L

  Essential electrolyte, supports nerve transmission, aids fluid balance

• Nitrate (as NO₃⁻–N)

  0.18 mg/L

  Dietary nitrate can contribute to nitric oxide production supporting vascular function

Sources

• Castle Rock Water Quality Report 2024
• Castle Rock PFAS Report 2024
• Castle Rock Water Quality Report 2025