The Ontario Headwaters Institute and our partners in the Credit Headwater Alliance urge all those downstream of Erin and/or who care about sound watershed planning to sign the petition below to support a federal impact assessment of the proposed sewage treatment plant in Erin, Ontario. We also ask you to copy and forward the petition to your local mayor, councillors, and MP. Please take whatever action you can by May 24.


Much of the land close to Lake Ontario is built up, with reduced natural heritage and poor inland water quality. Now, increasing development is charging in to our headwater areas where, unless properly planned, it may overwhelm our smaller streams and push the upland reservoirs upon which the health of many of our degraded watersheds now depend past numerous tipping points. The assault is multi-pronged, and a few issues include:

  • Land use planning that lacks a lens for sustainable communities, buildings, and homes;
  • Thirty-year targets for development lands and 400 series highways in the Greenbelt that drive prices up and farmers away;
  • Provincial policies that expedite virgin aggregate extraction over natural heritage, farming, conservation, and recycling;
  • An absence of cumulative monitoring and reporting – even where required when fundamental land use planning acts are amended; and,
  • Municipal debates about growth, commerce, and taxes, with almost no thought as to where the excrement is going.

Many of these issues are being brought to bear in a proposed development in Erin, in the Upper West Credit River. One in particular revolves around the last bullet above: a proposed sewage treatment plant (STP) that is the cause of concern by many local residents and organizations, as well as provincial organizations. Key issues are that the temperature of the effluent from the STP may kill the local brook trout and that those living downstream were not adequately consulted.

To date, local groups and a federal MP have been very effective in seeking a federal impact assessment of the proposed sewage treatment plant. Efforts have included:

  • A petition to the House of Commons to seek a federal impact assessment of the STP. This petition was initiated by local resident Jenni LeForestier, was supported by conservative MP Kyle Seeback, and has obtained more than 1,700 signatures. You can see this petition at Petition e-3194 – Petitions (;
  • A request to the Impact Assessment Agency of Canada (IAAC) and the Minister of the Environment and Climate Change to conduct a federal impact assessment assessment, sent by five local and provincial organizations forming the Coalition for the West Credit River. The request can be found as reference number 81434 on the IAAC website, at Erin Wastewater Treatment Plant Project – (; and,
  • One member of this group alone led the creation of a petition that has attained more than 21,000 signatories to protect the Credit from the effluent from the proposed sewage treatment plant.

How You Can Help

With just a over a week until the federal government releases its decision on May 26 about doing an impact assessment of this inadequate and harmful sewage treatment plant, we urge anyone to speak out in favour of a full impact assessment,. This includes not only individuals, organizations, and municipalities downstream of Erin, but also anyone who cares about the link between headwater and watershed health. Please:

Thank you,

Andrew McCammon

Text of the petition for your convenience, which you can amend as you wish and send to local officials

I write seeking your support for a federal Impact Assessment of the proposed sewage treatment plant in Erin, Ontario, IAAC file 81434. The reasons are straight-forward:

  • Temperature of the Effluent: The temperature of the effluent from the proposed sewage treatment plant (STP) will be such that it may increase the temperature of the West Credit to a point that will impact the local brook trout, and in particular disrupt their breeding cycle, leading to their extirpation (local extinction);
  • Volume and Velocity of the Effluent: The proposed STP and new additional stormwater run-off appear to add volumes of water and increase stream velocity in the Upper West Credit. This may impact the stability of the stream banks, reduce riparian cover, and alter the stream bed. Outcomes include damage to local property and increased erosion, with the deposition of the eroded material downstream potentially impacting other regionally significant aquatic species;
  • Virtually No Consultation with People Living Downstream nor First Nations: Ontario environmental assessments require public consultation. In the case of the Erin STP, local consultation was sporadic, and consultation with both those living downstream and First Nations were virtually non-existent; and,
  • Impacts excluded under Provincial Rules: The pipe carrying the effluent from the Erin STP is mostly in Ontario’ Greenbelt, as is the location where the pipe will disperse its effluent into the West Credit River. While the Greenbelt Plan allows infrastructure within the Greenbelt, the Plan does not require any environmental assessment of the impact of that infrastructure. It is thus imperative that a federal assessment be commissioned to assess the impact of the effluent on the West Credit River.

To address these short-comings, the proposed STP in Erin needs a federal Impact Assessment.

Get up to Speed on the Do’s and Don’ts of Operating your E-Scooter in Mississauga

As part of the City of Mississauga’s E-Scooter Pilot Program, Mississauga residents, visitors and commuters can use their e-scooters to get to their destinations. Before you get to scooting, make sure you’re up to speed on where you can and can’t operate your e-scooter in Mississauga, as well as the rules and etiquette to follow to keep yourself and other road users safe.

The City has implemented an e-scooter pilot to regulate the personally-owned e-scooters currently being operated in Mississauga. An e-scooter is a two-wheeled device that the rider operates while standing. The devices are battery-operated and equipped with a hand brake, lights, bell and kickstand. In Mississauga, e-scooters can be operated by those 16 years old and older, up to a speed of 24 km/h.

As part of the pilot, the City has updated its Parks By-LawTraffic By-Law and Transit By-Law to regulate where e-scooters can be operated in Mississauga. 

Continue reading Get up to Speed on the Do’s and Don’ts of Operating your E-Scooter in Mississauga

Increased Fines for Lakefront Parking Violations May to September

From Saturday, May 1 to Thursday, September 30, fines for parking and stopping violations will increase to $100 on local roads, City parks and municipal parking lots south of Lakeshore Road, from the east city limits to Meadow Wood Rd. Parking violations occurring between 2 to 6 a.m. are exempt from the increased fines.

The fines have been increased in an effort to reduce traffic congestion and illegal parking in these areas. These can impact neighbourhood safety and access for emergency service vehicles. These areas become busy during the spring and summer months as residents and visitors are drawn to the City’s waterfront parks, trails and amenities.

The City is committed to keeping Mississauga’s waterfront neighbourhoods safe and attractive for residents and visitors to enjoy. People should park only in permitted areas within parks or adjacent neighbourhoods. If the parking lot is full, please consider exploring one of the City’s other 500 parks in Mississauga. Those visiting the area are also encouraged to consider walking, cycling or taking transit.

Register for Upcoming Virtual Community Workshop – Lakeshore East Corridor Study

Register for one of the upcoming virtual community workshops as part of the Lakeshore East Corridor Study.

The Study, which was launched at a virtual community meeting on February 23, 2021, is reviewing the built form, height and density policies that guide future development along the Lakeshore East Corridor in the Lakeview area.


These virtual community workshops will include:

  • Presentation by urban design expert Harold Madi, highlighting best practices for main street corridors and livability
  • City planning staff project update 
  • Small group discussions 
  • Opportunity for public feedback


Workshops will be offered on Tuesday, May 4 and Wednesday, May 5 from 6:30 to 8 p.m.

The format and content will be the same for both meetings. Participants are welcome to register for the date that suits them best.


  • Mississauga residents
  • Business owners/property owners
  • Members of Council and City staff


Register here to participate or call 311. 

Registered participants will receive meeting instructions and additional background materials.


The goal of the study is to review the planning policy framework that will guide future development along the corridor. More information about the study can be found here.

The study covers the frontage properties along Lakeshore Road East between Seneca Avenue and Etobicoke Creek. The Lakeview Village Master Plan (former Ontario Power Generation site) is not part of this study as it is going through a separate planning application process.

Map of the Study Area:

For more information, refer to the related city studies: