Locals are being reminded that chemicals should only be applied where absolutely necessary, never before rainfall, and never near wells, drains, or streams.
Uisce Éireann and the National Pesticides and Drinking Water Action Group are warning pesticide users in Kildare to protect drinking water as the spraying season ends.
While pesticide detections in water have dropped by more than 50% since 2017, recent checks show the threat remains.
Even a single drop of pesticide can travel up to 30 kilometres in a watercourse.
Locals are being reminded that chemicals should only be applied where absolutely necessary, never before rainfall, and never near wells, drains, or streams.
MCPA herbicide products cannot be used from the end of September or October until March.

Kfm Obituary Announcements (Saturday)
Sharp Rise In M9 Collisions With Garda Call-Outs Up Year-On-Year
Councillor Seeks Clarity On How Often Nightclubs and Late Bars In Naas Are Inspected For Fire Risks
Unpaid Eight-Month Work And Training Placement For Adults With Disabilities Branded "Extremely Unfair"
Department Of Education Defends Kildare SNA Cuts Amid Claims Of Reduced Need At Some Schools
Naas Nurses Threaten Escalation As Staffing Row Deepens
Driving Tests Face Disruption As RSA Testers To Strike Next Week