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RED DE DISTRIBUCIÓN VELILLAS DEL DUQUE · Quintanilla de Onsoña
AQM LABORATORIOS S.L.
Water safety
Water safety| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Free Chlorinemg/L | 0.9 | 0.2 – 1 | 0.018 ▲ |
|---|
| Chloraminemg/L | 0.1Sampled Sept 2025 | ≤ 4 | 0.002 |
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General
General| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Hardnessmg/L | 86Sampled May 2026 | 80 – 459 | 86 |
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| pHUnidades pH | 8.3Sampled Nov 2025 | 6.5 – 9.5 | 8.3 |
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| TurbidityUNF | 2.5Sampled Nov 2025 | ≤ 4 | 0.25 |
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| Colormg Pt-Co/L | 0Sampled Nov 2025 | ≤ 15 | 0 |
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| ConductivityµS/cm a 20ºC | 176Sampled Nov 2025 | ≤ 2,500 | 176 |
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| TDSmg/l | 112.6Sampled Nov 2025estimated | 0 – 1,199 | 112.6 |
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| OdorIn. Dil. | 0Sampled Nov 2025 | ≤ 3 | 0 |
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| LSIUnidades pH | -0.2Sampled Sept 2025 | No limit | -0.2 |
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| Oxidationmg O2 /L | 0.4Sampled Sept 2025 | ≤ 5 | 0.4 |
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Pathogens
Pathogens| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| ClostridiumUFC/100 ml | 0Sampled Sept 2025 | ≤ 0 | 0 |
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| eColiUFC/100 ml | 0Sampled Nov 2025 | ≤ 0 | 0 |
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| BacteriasUFC/100 ml | 0Sampled Nov 2025 | ≤ 0 | 0 |
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| EnterococcusUFC/100 ml | 0Sampled Nov 2025 | ≤ 0 | 0 |
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Chemical parameters
Chemical parameters| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Cyanide totalµg/L | 9Sampled Sept 2025 | ≤ 50 | 0.45 |
|---|
| Fluoridemg/L | 0Sampled Sept 2025 | ≤ 1.5 | 0 |
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| Mercuryµg/L | 0Sampled Sept 2025 | ≤ 1 | 0 |
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| Nitritesmg/L | 0Sampled Sept 2025 | ≤ 0.1 | 0 |
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| Nitratesmg/L | 4Sampled Sept 2025 | ≤ 50 | 1.2 |
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Minerals
Minerals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Magnesiummg/L | 11Sampled May 2026 | No limit | 11 |
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| Calciummg/L | 16Sampled May 2026 | No limit | 16 |
|---|
| Potassiummg/L | 1Sampled May 2026 | No limit | 1 |
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| Chloridemg/L | 10Sampled Sept 2025 | ≤ 250 | 10 |
|---|
Metals
Metals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Aluminiumµg/L | 24Sampled Sept 2025 | ≤ 200 | 24 |
|---|
| Antimonyµg/L | 0Sampled Sept 2025 | ≤ 5 | 0 |
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| Arsenicµg/L | 2Sampled Sept 2025 | ≤ 10 | 1 |
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| Cadmiumµg/L | 0Sampled Sept 2025 | ≤ 5 | 0 |
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| Chromiumµg/L | 16Sampled Sept 2025 | ≤ 50 | 16 |
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| Coppermg/L | 0Sampled Sept 2025 | ≤ 2,000 | 0 |
|---|
| Ironµg/L | 99Sampled Sept 2025 | ≤ 200 | 99 |
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| Manganeseµg/L | 4Sampled Sept 2025 | ≤ 50 | 4 |
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| Leadµg/L | 0Sampled Sept 2025 | ≤ 10 | 0 |
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| Nickelµg/L | 2Sampled Sept 2025 | ≤ 20 | 2 |
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| Seleniumµg/L | 2Sampled Sept 2025 | ≤ 10 | 2 |
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| Sodiummg/L | 5Sampled Sept 2025 | ≤ 200 | 5 |
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Chlorine by-products
Chlorine by-products| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total Trichloroethyleneµg/L | 1Sampled Sept 2025 | ≤ 10 | 0.05 |
|---|
| Trichloroethyleneµg/L | 1Sampled Sept 2025 | No limit | 0.05 |
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| Tetrachloroethyleneµg/L | 1Sampled Sept 2025 | No limit | 0.05 |
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| Total Trihalomethanesµg/L | 19Sampled Sept 2025 | ≤ 100 | 0.95 |
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Haloacetic acids
Haloacetic acids| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total haloacetic acidsµg/L | 9Sampled Sept 2025 | ≤ 60 | 0.45 |
|---|
Pesticides
Pesticides| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total pesticidesµg/L | 0.1Sampled Sept 2025 | ≤ 0.5 | 0.1 |
|---|
Perfluorinated chemicals
Perfluorinated chemicals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| PFOAµg/L | 0Sampled Sept 2025 | No limit | 0 |
|---|
| PFOSµg/L | 0Sampled Sept 2025 | No limit | 0 |
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| PFNAµg/L | 0Sampled Sept 2025 | No limit | 0 |
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| Total PFASµg/L | 0Sampled Sept 2025 | ≤ 0.1 | 0 |
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| PFAS 4ng/l | Not reported | No limit | — |
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| PFAS 21ng/l | Not reported | No limit | — |
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Other
Other| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Ammoniamg/L | 0Sampled Sept 2025 | No limit | 0 |
|---|
| Sulfatemg/L | 4Sampled Sept 2025 | No limit | 4 |
|---|
| Uraniumµg/L | 2Sampled Sept 2025 | No limit | 2 |
|---|
Data collected from the water supplier for your area. Quality ranges are based on WHO, EU and Spanish guidelines.
