Irish Water did not detect any exceedances in pesticides in drinking water sources in Carlow in 2018, but the national water utility, working in partnership with the National Pesticide and Drinking Water Action Group (NPDWAG), is urging users of pesticides to continue to be mindful of best practice when spraying their lands to protect drinking water quality.
Efforts to reduce the incidence of detections are being coordinated by the NPDWAG which is chaired by the Department of Agriculture, Food and the Marine.
All of the key stakeholders are represented in this group and include other Government departments and agencies; local authorities; industry representative bodies; farming organisations; water sector organisations; and amenity sector organisations.
Pat Duggan, Irish Water’s Regional Drinking Water Compliance Specialist said: “Irish Water is continuing its extensive investment programme to improve water and wastewater services in Ireland.
"Providing safe, clean drinking water for all is our first priority. In Ireland, the majority (82 per cent) of drinking water supplies come from surface water sources (water from rivers, lakes and streams). Such supplies are vulnerable to contamination from land and animal run-off.”
Dr Aidan Moody, Chair of the NPDWAG commented: “The continued engagement of all stakeholders, working in partnership, is needed to tackle this issue. Users of pesticides should make sure that they are aware of the best practice measures that should be followed to protect water quality.”
MCPA, which is commonly used to kill rushes on wet land, is the main offender. Careless storage, handling or improper application means it can easily end up in drinking water leading to breaches of the drinking water regulations.
The regulations are so stringent that a single drop of pesticide is enough to breach the drinking water limit in a small stream for up to 30 kilometres. This clearly highlights the level of care needed to protect drinking water sources.
Irish Water working in partnership with the National Pesticides and Drinking Water Action Group would like to remind farmers and professional users of pesticides of the need to follow best practice in the application of pesticides such as MCPA on land, particularly near lakes and rivers used as drinking water sources.
The basic steps in reducing pesticide risks are –
Choose the right pesticide product (Note that products containing MCPA are NOT approved for use in weed-wipers.)
Read and follow the product label
Determine the right amount to purchase and use
Don’t spray if rain or strong wind is forecast in the next 48 hours
Make sure you are aware of the location of all nearby water courses
Comply with any buffer zone specified on the product label to protect the aquatic environment. Mark out the specified buffer zone from the edge of the river or lake or other water course
Never fill a sprayer directly from a water course or carry out mixing, loading or other handling operations beside a water course
Avoid spills, stay well back from open drains and rinse empty containers 3 times into the sprayer.
Store and dispose of pesticides and their containers properly.
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