Mineral content — affects limescale, taste, appliances
👅
Taste & Comfort
9.6
pH, chlorine, clarity, odour, and colour
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 6 months are included — older data is excluded to keep scores current.
⚠ Parameters scoring below 8 — explained
💎 Water hardness
Category: Hardness · Legal limit: no legal limit
4/10Needs attention
303 mg/L CaCO3 — classified as very hard. Very hard water — significant limescale buildup on appliances. Water softener or filter recommended for kettles and washing machines. Safe to drink but has a mineral taste. There is no legal limit for hardness as it poses no health risk.
Affected networks
Network
Score
Value
Date
RED CASARES
4/10
303
28/10/2025 08:10
RED DERIV D10 OESTE
6/10
227
28/10/2025 09:50
RED SECADERO
6/10
248
15/10/2025
💎 Sulphate
Category: Hardness · Legal limit: 250 mg/L
5.2/10Fair
121 mg/L (limit 250 mg/L). Moderate — within comfortable range.
Network: RED SECADERO · Value: 121 · Date: 01/07/2025 08:12
🛡️ Trihalomethanes (THMs)
Category: Safety · Legal limit: 100 µg/L
6/10Fair
40 µg/L — 40% 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 DERIV D10 OESTE · Value: 40 · Date: 28/10/2025 09:50
👅 Water clarity
Category: taste · Legal limit: 4 NTU
7/10Good
1.2 NTU (limit 4 NTU). Slight haze — mostly clear but occasionally noticeable in a glass.
Network: RED SECADERO · Value: 1.2 · Date: 17/02/2026 09:40