Providing clean, healthy drinking water is a core AquaGib responsibility.
Treatment and monitoring
Water produced at desalination plants is treated and re-mineralised, then analysed for chemical content and bacterial purity. Water entering storage reservoirs is checked again before being placed in reserve.
Residual chlorination helps maintain bacteriological quality as water leaves the plant and moves from storage to service reservoirs. Samples are taken across distribution districts to check that water remains wholesome when it reaches customers. Independent checks are also carried out by the Environmental Health Department.
Key microbiological standards
| Test | What it indicates | Standard | Unit |
|---|---|---|---|
| E. coli | Possible faecal contamination; any occurrence is investigated immediately. | 0 | per 100 ml |
| Enterococci | Possible faecal contamination; any occurrence is investigated immediately. | 0 | per 100 ml |
Potable water in Gibraltar is classified as slightly hard. For questions about taste, colour or smell, call the Analysis Department on +350 200 77017.