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Ojen

3 water networks · Costa del Sol, Málaga

9.3
Overall / 10
🛡️
Safety
9.9
All bacteria, chemicals, and regulated substances
💎
Hardness
8.7
Mineral content — affects limescale, taste, appliances
👅
Taste & Comfort
8.7
pH, chlorine, clarity, odour, and colour

About the water supply in Ojen

Ojen's tap water is certified safe to drink across all networks. However, there are some concerns: free chlorine levels are low in 2 of the 3 networks, which can affect taste and comfort. Additionally, hardness is rated at 6/10 in these same networks, which may impact appliances over time. Overall, the water quality remains high, but be mindful of these specific issues.

How to read these scores: 10 = perfect, 0 = at or over the legal limit. A score of 0 does not necessarily mean the water is unsafe — it means that specific parameter is at its maximum legal level. The official SINAC certification (APTA / NO APTA) is the authoritative safety indicator. Only readings from the last year are included — older data is excluded to keep scores current.

⚠ Parameters scoring below 8 — explained

👅 Chlorine taste/smell
Category: Taste · Legal limit: 0.2–1.0 mg/L required
4/10 Needs attention
0.8 mg/L. Chlorine is legally required (minimum 0.2 mg/L) to keep water safe as it travels through pipes. High chlorine level — a noticeable taste and smell. Letting water stand in an open glass for a few minutes will reduce it.
Affected networks
Network Score Value Date
RED OJEN_ARROYO CALERO 6/10 0.7 15/07/2026 10:02
ECOHOTEL-OJEN-RED ECOHOTEL 4/10 0.8 15/07/2026
💎 Water hardness
Category: Hardness · Legal limit: no legal limit
6/10 Fair
300 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.
Affected networks
Network Score Value Date
RED OJEN_ARROYO CALERO 6/10 300 15/06/2026 10:00
ECOHOTEL-OJEN-RED ECOHOTEL 6/10 203 15/12/2025
🛡️ Trihalomethanes (THMs)
Category: Safety · Legal limit: 100 µg/L
6.7/10 Fair
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
👅 Odour
Category: Taste · Legal limit: 3 (dilution index)
6.7/10 Fair
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: 15/07/2026
👅 Taste
Category: Taste · Legal limit: 3 (dilution index)
6.7/10 Fair
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: 15/07/2026
👅 Ammonia
Category: Taste · Legal limit: 0.5 mg/L
7/10 Good
0.15 mg/L (limit 0.5 mg/L). Low — no noticeable taste or smell.
Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 0.15 · Date: 29/06/2026
👅 Manganese
Category: Taste · Legal limit: 50 µg/L
7.2/10 Good
14 µg/L (limit 50 µg/L). Low to moderate.
Network: RED ZONA DE MONTAÑA · Value: 14 · Date: 12/08/2025 08:50
👅 Colour
Category: Taste · Legal limit: 15 mg Pt-Co/L
7.3/10 Good
4 mg Pt-Co/L (limit 15). Essentially colourless — barely any tint.
Network: ECOHOTEL-OJEN-RED ECOHOTEL · Value: 4 · Date: 15/07/2026

Water networks breakdown

Network Score 🛡️ Safety 💎 Hardness 👅 Taste & Comfort Last tested
RED OJEN_ARROYO CALERO 9.7
–
RED ZONA DE MONTAÑA 9.4
–
ECOHOTEL-OJEN-RED ECOHOTEL 8.8
29/06/2026

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Is tap water safe to drink?
Guide for tourists, expats and residents
Hard water guide
Limescale, appliances and solutions
Chlorine in tap water
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