Since 1997 there have significant improvements made by member companies in the area of environmental protection. In 2018, HIEA's collective environmental performance continued this positive trend.

HIEA member companies continue to make major financial contributions to the economic well being and environmental protection of the City of Hamilton and its residents. Collectively, HIEA member companies have invested almost $890 million on environmental capital improvements since 1997.

In 2018 HIEA member companies provided almost 7,400 direct manufacturing jobs as well as approximately 56,000 indirect jobs. HIEA members have also paid approximately $704 million in municipal taxes since 1997 and occupy approximately 700 hectares of land.

HIEA has also invested over $1 million and many volunteer hours to community programs and educational initiatives in the Hamilton community since 1997.

In 2018 HIEA supported many local organizations and programs including the Royal Botanical Gardens - Green Angels Program, Bay Area Restoration Council - Yellow Fish Road Program, Hamilton Children's Water Festival, the McQuesten Urban Farm project and the Upwind Downwind Conference.

5 Year Cumulative Environmental Capital Spending

5 Year Cumulative Support


HIEA Member companies remain dedicated to reducing their environmental footprint and have made a commitment to protect Hamilton’s air, water, and land.

HIEA and its members not only work together to support each other but also work with other local environmental groups to encourage improvement in the Hamilton community. An active member at Clean Air Hamilton (CAH), HIEA participates in several committees including: the Air Quality Task Force; the CAH Structure and Planning Committee; the Committee established to review the CAH Annual Report and the Upwind/Downwind organizing committee.

The following charts summarize the aggregated results from the environmental survey of HIEA companies for the years 2014 through 2018. The data in this report represents 2018 information provided by HIEA member companies who responded to the electronic survey. The charts are prepared based on the compiled data and uses 1997 as the base year and 2008 as reference to evaluate current environmental trends.  Data from new members is only collected and included in the survey from the date they joined.

Greenhouse Gases (GHG)

Total Particulate Matter (TPM)

Nitrogen Oxide (NOx)

Sulphur Dioxide (SO2)

Polycyclic Aromatic Hydrocarbons (PAHs)


Many HIEA members operate their own waste water treatment facilities.  Ongoing improvements and updates to these treatment facilities ensure that their discharges are in compliance with the current requirements of the City of Hamilton’s Sanitary Sewer By-Laws and provincial regulations and permits.

Some HIEA members discharge treated water to the municipal sanitary sewer system while others discharge treated water to Hamilton Harbour. Some sites also discharge untreated rain water into the system. Water entering the sewer system is directed to a Hamilton Wastewater Treatment Plant where it undergoes further treatment before being discharged to the Harbour. 

City Water Use

Hamilton Harbour Water Use

Total Suspended Solids (TSS)


Hamilton is an important recycling centre and HIEA companies are major participants. This category is comprised of waste streams sent to landfill and/or off-site for treatment/destruction and includes subject waste, commercial/domestic waste and non-hazardous industrial waste. Total off-site disposal levels fluctuate as a result of changes in year to year production.

HIEA member companies purchase each others' by-products and waste providing each other with raw materials and feed stock to be recycled or manufactured into other usable products.

Total off-Site Disposal

Beginning in 2011 the Environmental Performance Reports are no longer published separately and are now part of our Newsletter/Report to the Community

Environmental Survey Reports