In view of the value placed upon clean fresh water by our members (the #1 value, by far), a good portion of the Mississippi Lake Plan is devoted to this topic.  The MLA is dedicated to ensuring that sources of water contamination are monitored and reduced and/or eliminated.  Source water is vital to our heath and welfare, and good, clean, safe water is the ultimate aim, whether residents draw their water from private wells, or directly from the lake, or indeed entire towns like Carleton Place use the lake as their water source.

Contamination of source water can arise in a number of ways including: runoff from fields and properties; poorly maintained septic systems; and improper disposal of hazardous wastes.  A good deal of importance has been placed on developing preventative measures and policies to reduce pollution in the first place.  However, it is equally important to establish and maintain water treatment capabilities to capture pollutants that did get into our water supplies. 

An ever growing and increasingly dangerous source of pollution is plastics.  We think of plastic as fairly inert material, but it can have drastic effects on fish and birds, and over time it breaks down into very small particles that can affect human health as well.  Here is a 2019 report on the kinds of microplasics that have been found in Mississippi Lake. 

The following sources of information should guide you in making sure that (a) your own actions are not contributing to pollution; and (b) you are taking the proper measures for removing or at least minimizing contaminants in your drinking water source.


Source Water Protection info from MOECC

Mississippi-Rideau Source Water Protection Plan

Mississippi-Rideau Septic Inspection Office (MRSSO) Septic Savvy presentation 2018

Old Well Use

MOECC info on wells

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