Guernsey Water say algal blooms may affect the taste and look of tap water, but it's safe to drink.
An extended period of dry, warm and relatively calm weather is being blamed for encouraging the growth of algal blooms in two of Guernsey's reservoirs.
Margaret McGuiness, the water quality risk manager for Guernsey Water, says there's no reason to be concerned:
“We are currently monitoring algal blooms in a couple of our reservoirs, which can cause your tap water to look, smell or taste slightly different to normal.
We would like to provide reassurance that even though some customers’ water may currently smell 'earthy' it is perfectly safe to drink, and as usual is being monitored daily for bacteriological and chemical quality, in line with the UK Drinking Water Regulations."
She says that water undergoes regular testing in the various quarries used as reservoirs as well as at the water purification plant in St Saviours and also as it comes out of the tap.
She says water is tested against 130 different benchmarks.
It's unclear which catchments are affected, but in the past quarries in the Vale have been blamed for a seasonal, 'earthy' taint.
Guernsey rabbits at risk from two deadly diseases
Exhibition to celebrate 90 Years of Guernsey's Ambulance Service
Guernsey sewage pipe repairs "unlikely to be a quick"
Guernsey FC to fight for promotion at Victoria Park
Move to return St Julian's House to Guernsey's emergency shelter
Jersey and Guernsey included in UK-Gulf trade deal
St Pier says States put investigation before his experience in P&R seat vote
Industry leaders warn against paying Guernsey's under 18s the same as adults
