At Radisson Blu Resort & Spa, Malta Golden Sands, we believe that exceptional hospitality begins with the basics, and nothing is more fundamental than the quality of the water you drink. We are proud to go above and beyond in ensuring that the water supplied throughout our resort is produced, treated, and monitored to the highest standards.
This page is published in compliance with the Sixth Schedule of Legal Notice 297 of 2023 (Water Intended for Human Consumption Regulations), which transposes EU Directive 2020/2184 into Maltese law.
For further details on the applicable regulatory framework, please visit: https://legislation.mt
Our water supply
Unlike most hotels, which rely on a municipal water network, Radisson Blu Resort & Spa, Malta Golden Sands is entirely self-sufficient in water production. We produce our own fresh water on site, from the Mediterranean Sea. Our resort covers a footprint of approximately 33,000 square metres and supplies around 1,000 persons at any given time, depending on occupancy. Every drop of water used for drinking, cooking, and daily personal use across the resort is produced right here, through our own state-of-the-art desalination facility.
How our water is produced
Our on-site water treatment plant uses Seawater Reverse Osmosis (SWRO) — one of the most advanced and reliable methods of freshwater production in the world, and the same technology used by leading water authorities across the Mediterranean.
The plant comprises two fully independent SWRO units, registered with Malta's Department of Environmental Health under:
— RO Unit A: DEH/PWS 013001
— RO Unit B: DEH/PWS 013002
Together, the two units have a total production capacity of 360 cubic metres of fresh water per day (180 m³ per unit), drawing seawater from dedicated coastal boreholes on the resort's premises.
The treatment process involves six carefully managed stages:
1. PRE-FILTRATION
Raw seawater is passed through multimedia and cartridge filters to remove suspended solids, silt, and fine particulate matter before it reaches the RO membranes.
2. CHEMICAL PRE-TREATMENT
Sulphuric acid is introduced into the feedwater to prevent the formation of mineral scale on the membranes, ensuring stable, long-term performance and consistent water quality output.
3. REVERSE OSMOSIS DESALINATION
High-pressure pumps force the pre-treated seawater through semi-permeable membranes that reject approximately 99% of dissolved salts. The Mediterranean seawater entering the system carries a Total Dissolved Solids (TDS) content of approximately 37,200 ppm; the product water is designed to have a TDS of less than 500 mg/l — well within safe drinking water standards.
Of every litre of seawater drawn, 40% is converted into fresh water. The remaining 60% — the concentrated brine — is safely discharged back to the sea, in line with environmental best practices.
4. MINERALISATION AND pH CONDITIONING
Because the reverse osmosis process removes virtually all minerals, the product water undergoes re-mineralisation and pH adjustment. It passes through alkaliser vessels and is dosed with sodium hydroxide to reduce corrosivity and bring the water to a balanced Langelier Saturation Index (LSI), protecting our distribution network and ensuring the water is pleasant and stable for consumption.
5. POST-CHLORINATION AND DISINFECTION
A post-chlorination system introduces a carefully controlled residual disinfectant into the product water reservoir. This ensures that the water remains microbiologically safe throughout storage and at every point of distribution across the resort.
6. ONGOING QUALITY MONITORING
Samples are drawn regularly and submitted to independent accredited laboratories for physicochemical, microbiological, and radiological analysis. Results are reviewed against the parametric values set out in L.N. 297 of 2023.
Water quality results
We test our water rigorously and regularly. Below are the most recent results, as certified by independent laboratories.
QUARTERLY ANALYSIS — MARCH 2026
Conducted by: JH Water Technology & Consultancy
(B.Sc. (Hons) MLS; M.Sc. Biomedical Science — Registered in Malta)
Sampling date: 30 March 2026
RO UNIT A — DEH/PWS 013001 | Report No. 260835 | Issued: 15 April 2026
Parameter | Result | Regulatory Limit
---------------------|-----------------|------------------------
Aluminium | < 10 μg/l | < 200 μg/l
Ammonium | < 0.01 mg/l | < 0.5 mg/l
Boron | 0.26 mg/l | < 1 mg/l
Chloride | 38 mg/l | < 250 mg/l
Colour | 1 PCU | < 15 PCU
Conductivity | 293.2 μS/cm | < 2500 μS/cm
Iron | < 10 μg/l | < 200 μg/l
Manganese | < 10 μg/l | < 50 μg/l
Nitrate | 2.2 mg/l | < 50 mg/l
Nitrite | < 0.01 mg/l | < 0.5 mg/l
Odour | Acceptable | No abnormal change
Oxidisability | < 0.1 mg/l O₂ | < 5.0 mg/l O₂
pH | 7.06 | 6.5 – 9.5
Sodium | 24 mg/l | < 200 mg/l
Sulphate | < 5 mg/l | < 250 mg/l
Taste | Acceptable | No abnormal change
Turbidity | 0.26 NTU | No abnormal change
Total Bacteria (22°C)| Nil | < 20 cfu/ml
Total Coliforms | Nil | Nil
Escherichia coli | Nil | Nil
Intestinal Entero. | Nil | Nil / 100 ml
✔ All parameters comply with L.N. 297 of 2023.
RO UNIT B — DEH/PWS 013002 | Report No. 260834 | Issued: 15 April 2026
Parameter | Result | Regulatory Limit
---------------------|-----------------|------------------------
Aluminium | < 10 μg/l | < 200 μg/l
Ammonium | < 0.01 mg/l | < 0.5 mg/l
Boron | 0.28 mg/l | < 1 mg/l
Chloride | 35 mg/l | < 250 mg/l
Colour | 1 PCU | < 15 PCU
Conductivity | 287.5 μS/cm | < 2500 μS/cm
Iron | < 10 μg/l | < 200 μg/l
Manganese | < 10 μg/l | < 50 μg/l
Nitrate | 1.8 mg/l | < 50 mg/l
Nitrite | < 0.01 mg/l | < 0.5 mg/l
Odour | Acceptable | No abnormal change
Oxidisability | < 0.1 mg/l O₂ | < 5.0 mg/l O₂
pH | 7.00 | 6.5 – 9.5
Sodium | 20 mg/l | < 200 mg/l
Sulphate | < 5 mg/l | < 250 mg/l
Taste | Acceptable | No abnormal change
Turbidity | 0.24 NTU | No abnormal change
Total Bacteria (22°C)| Nil | < 20 cfu/ml
Total Coliforms | Nil | Nil
Escherichia coli | Nil | Nil
Intestinal Entero. | Nil | Nil / 100 ml
✔ All parameters comply with L.N. 297 of 2023.
RADIOACTIVITY TESTING — ANNUAL 2025
In addition to routine quarterly monitoring, we conduct an annual radioactivity analysis of the combined output of both RO units, as required by regulation.
Sampled: 23 September 2025
Analysed by: AGQ Labs
(ENAC Accredited Laboratory | ISO/IEC 17025 Certified)
Report issued: 14 October 2025
Parameter | Result | Status
---------------------------|-----------------|--------------------
Total Alpha Activity | < 0.0594 Bq/L | Below detection limit
Total Beta Activity | 0.1078 Bq/L | Within acceptable range
Radon (Rn-222) | < 1.09 Bq/L | Below detection limit
Tritium (H-3) | < 10 Bq/L | Below detection limit
Total Indicative Dose | < 0.10 mSv/year | Below parametric value
✔ All radioactivity parameters are within the limits set by L.N. 297 of 2023.
ANNUAL COMPREHENSIVE AUDIT — 2025
Each year, both of our RO units undergo a full-spectrum water quality audit covering an extended range of parameters, including:
— Heavy metals (arsenic, lead, cadmium, mercury, chromium, nickel, and others)
— Pesticides and herbicides
— Polycyclic aromatic hydrocarbons (PAH)
— Volatile organic compounds (benzene, trihalomethanes, vinyl chloride and others)
— Disinfection by-products
The 2025 annual audit was conducted by Centro Analisi P.Q.A. srl, an ACCREDIA-accredited laboratory (Lab No. 1187 L) based in Siracusa, Italy. Samples were taken in August 2025.
Every parameter tested across both units was either not detected or well within the limits established by L.N. 297 of 2023.
Our commitment
We invest in the quality of our water because we invest in the quality of your experience. From the moment seawater enters our boreholes to the moment water flows from your tap, it passes through multiple layers of treatment, conditioning, disinfection, and independent verification.
The water you consume at Radisson Blu Resort & Spa, Malta Golden Sands is not simply compliant — it is produced with the same care and attention to detail that we bring to every aspect of your stay.
This page is updated regularly to reflect the most current test results available.
For more information on the regulatory framework governing water quality in Malta: https://legislation.mt
For any questions about our water supply, please contact our team: engineering.goldensands@rdbmalta.com