Ojen

🛡️

Safety

9.5

All bacteria, chemicals, and regulated substances

💎

Hardness

9

Mineral content — affects limescale, taste, appliances

👅

Taste & Comfort

9.1

pH, chlorine, clarity, odour, and colour

256 mg/L CaCO3 — classified as hard. Hard water — expect noticeable limescale on appliances, kettles and taps. Soap may not lather as well. Not a health concern. There is no legal limit for hardness as it poses no health risk.

Network	Score	Value	Date
RED ARROYO CALERO	6/10	256	16/02/2026 11:58
RED OJEN	6/10	264	18/11/2025 10:40
RED ZONA DE MONTAÑA	6/10	218	12/08/2025 08:50
ECOHOTEL-OJEN-RED ECOHOTEL	6/10	203	15/12/2025

0.7 mg/L. Chlorine is legally required (minimum 0.2 mg/L) to keep water safe as it travels through pipes. Slightly high — a faint chlorine smell or taste may be noticeable if water is left in a glass.

Network: RED OJEN · Value: 0.7 · Date: 13/02/2026 12:20

33 µg/L — 33% of the 100 µg/L legal limit. Trihalomethanes form when chlorine (used to disinfect water) reacts with natural organic matter. They are safe at these levels but are a reason some people prefer to filter tap water. Moderate level — within legal limits but noticeable to sensitive people.

Network: RED ZONA DE MONTAÑA · Value: 33 · Date: 12/08/2025 08:50

1 on a 0–3 scale (0 = no odour). Very slight odour — only perceptible undiluted. Most people won't notice when drinking.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 1 · Date: 11/02/2026

1 on a 0–3 scale (0 = neutral). Very mild taste detectable — barely noticeable when drinking normally.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 1 · Date: 11/02/2026

3 µg/L detected (limit 10 µg/L). Detectable but within legal limits.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 3 · Date: 22/05/2025

0.3 µg/L (limit 1 µg/L). Detectable — monitor.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 0.3 · Date: 22/05/2025

9 µg/L (limit 30 µg/L). Low to moderate.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 9 · Date: 22/05/2025

0.15 mg/L (limit 0.5 mg/L). Low — no noticeable taste or smell.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 0.15 · Date: 22/05/2025

14 µg/L (limit 50 µg/L). Low to moderate.

Network: RED ZONA DE MONTAÑA · Value: 14 · Date: 12/08/2025 08:50

pH 8.4 — Slightly alkaline. May have a faintly chalky or flat taste but is safe.

Network: RED ZONA DE MONTAÑA · Value: 8.4 · Date: 09/02/2026 10:56

4 mg Pt-Co/L (limit 15). Essentially colourless — barely any tint.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 4 · Date: 11/02/2026

5 µg/L (limit 20 µg/L). Moderate.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 5 · Date: 22/05/2025

50 µg/L (limit 200 µg/L). Low — no noticeable effect.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 50 · Date: 22/05/2025

50 µg/L (limit 200 µg/L). Low — unlikely to cause issues.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 50 · Date: 22/05/2025

44 mg/L (limit 200 mg/L). Moderate — a glass of water contributes a small amount of your daily sodium.

Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 44 · Date: 22/05/2025