Our tap water is a purified product that has been treated in a modern re-mineralization process to absorb important minerals like calcium. This gives the water its delicious taste. Tap water in Aruba is safe to drink, has no risk for human health and does not need further treatment.
Our Water Quality
WEB Aruba has very stringent procedures to meet quality requirements for drinking water. Our water is chemically tested on a daily basis. In order to meet the WHO guidelines, water analyses are performed at strategic sites around the island at monthly intervals.
Several process values are automatically and continuously checked by the facilities themselves and by operational staff. Our water complies with the WHO guidelines in every way. Our ISO 17025 accredited laboratory controls parameters such as pH, conductivity, hardness among others, as can be seen in the table more below.
Our drinking water is also subject to a monthly revision process by the Aruba National Laboratory (Landslaboratorium Aruba) at strategic sites around the island. These periodic reviews should show no bacterial contaminants, to assure a high level of water purity. Additionally, the U.S. National Testing Laboratories Ltd. performs an extensive audit of the water production and distribution system of WEB Aruba annually, testing on 159 parameters.
Microorganisms and Bacteria
Despite our stringent procedures to meet quality requirements for drinking water, all kinds of microorganisms and bacteria can enter our water distribution network. Therefore, WEB has a structural maintenance plan to always keep its network safe. WEB, however, can only oversee its own water distribution network. We need your cooperation in maintaining a high-water quality. This entails usage of the right water pipe material, but also by reducing the risk of contamination.
How can you reduce the risk of drinking water contamination? Are you a homeowner or a drinking water installation owner? Click on the applicable item below to learn how.
Drinking Water Average at WEB Aruba in accordance with the WHO-standards for drinking water
| Physical & Chemical properties | Expressed as | Units | *WEB guidelines value: | WHO guidelines value:(2004) |
|---|---|---|---|---|
| Odor & Taste | Satisfactory | Not offensive for most consumers | ||
| Color | Clear | - | ||
| Temperature | Degree C | 32-40 | - | |
| Turbidity | NTU | 1.0(max) | 5, preferably <1.0 for disinfection efficiency | |
| pH | Units | 8.5-9.5 | 6.5-9.5 | |
| Conductivity | uS/cm | <150 | - | |
| Total Dissolved Solids | Ppm | <75 | 1000 | |
| Chloride | as Cl | Ppm | <50 | 250(sodium:200ppm) |
| Hardness | as CaCO3 | Ppm | <20 | 500 |
| Calcium | as CaCO3 | Ppm | 3-10 | - |
| Total M. Alkalinity | as CaCO3 | Ppm | <50 | - |
| Total Phosphate | as PO4 | Ppm | 0.5-1.5 | - |
| Zinc | as Zn | Ppm | 0.05-1.0 | 5.0 |
| Total Iron | as Fe | Ppm |
Max 0.3 (WEB prefer 0.1) |
0.3 |
| Total Copper | as Cu | Ppm | Max 1.0 | 2.0 |
| Total Aluminium | as Al | Ppm | Max 0.2 | 0.2 |
| Lead | as Pb | Ppm | Max 0.01 | 0.01 |
| Boron | as B | Ppm | Max 0.5 | 0.5 a |
| Microbiological aspect: | ||||
| Total bacterial plate count | cfu per 10ml | <50 no action | 5000 | |
| 50-100 confirm | - | |||
| 101-200 investigation of source: within 72 hours | - | |||
| >200 after confirmation disinfection of system | - | |||
| Detection of fecal coliform organism means immediately action | ||||
WEB Aruba: High-Quality Water
See how WEB produces world-class drinking water every day.
