All the affected wells were within about 900 metres of the spill location and downstream from a location that receives groundwater PUSLINCH, Ont. – Township environmental consultants believe the smelly water experienced by private well owners last summer was caused by a chemical spill along Highway 6.  Retained by Puslinch to investigate the rotten vegetable odour reported by several private well owners in July 2023, a new report from Harden Environmental Services Ltd. says the smell was caused by a "chemical spill of an unknown...…All the affected wells were within about 900 metres of the spill location and downstream from a location that receives groundwater PUSLINCH, Ont. – Township environmental consultants believe the smelly water experienced by private well owners last summer was caused by a chemical spill along Highway 6.  Retained by Puslinch to investigate the rotten vegetable odour reported by several private well owners in July 2023, a new report from Harden Environmental Services Ltd. says the smell was caused by a "chemical spill of an unknown...WW…