Dye tracer study could affect colour of Conestogo River

The Township of Mapleton is preparing to carry out a dye tracer study at the Mapleton Water Pollution Control Plant (WPCP).

The dye tracer study was requested by the Ministry of the Environment and Climate Change (MOECC) to understand the hydrologic characteristics of the Conestogo River in the vicinity of its mixing with the effluent from the Mapleton WPCP. Hutchinson Environmental Sciences Ltd. (HESL) will be conducting the Rhodamine WT dye study on Nov. 7, from approximately 9am to 5pm, with rain dates of Nov. 8 and 9.

Rhodamine WT dye is the preferred dye tracer for use in hydrologic studies. At the concentrations to be used in this study, it is non-toxic to humans and aquatic life, states a Nov. 4 press release from the township and HESL.

The release states the dye tracer will cause the water in the Conestogo River to have a pink coloration at the site of injection (the Mapleton WPCP) through to the Conestogo River, upstream of Concession 8. This effect will become diluted with distance from the Mapleton WPCP and should be less visible beyond the Concession 8 Bridge.

Anyone with questions or concerns is invited to contact:

– Mapleton public works director Jamie Morgan, (519) 638.3313 ext. 41 Email: JMorgan@mapleton.ca; or

– Tara Roumeliotis, P.Eng. Hutchinson Environmental Sciences Ltd., (519) 576-1711 ext.301 Email: tara@environmentalsciences.ca.

 

 

 

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