American Family Insurance – Cooling Tower Retrofit

Case study on American Family Insurance’s addition of a water softener to their cooling towers. Water savings were achieved with no price premium over taking no action.

Berres Brothers – Rain Garden

In an effort to reduce stormwater runoff, Berres Brothers built two rain gardens. The rain gardens keep 98% of the suspended solids out of the Rock River Basin and have cut the company’s stormwater impact fee by 75%.

Briggs & Stratton – Green Space

Case study on Briggs & Stratton’s conversion of an underutilized parking lot into a multi-use green space.

Flambeau River Papers – Water Recovery

Case study on Flambeau River Papers’ project to recover and re-use heated seal water in the paper-making process.

New Glarus – Cleaning System

New Glarus Brewing Company decided to ‘close the loop’ on their cleaning system by installing a Clean-in-Place (CIP) tank system which reuses water which has already been heated and infused with caustic. By upgrading to a system which does not have to use new cleaning solution as much and is automated to more efficiently use water and caustic, the Brewery reduced water usage by 12% and caustic use by 26%.

Rockwell automation – Green Roof

Case study on Green Tier participant Rockwell Automation’s green roof on its headquarters in Milwaukee. The green roof, installed in summer 2010, serves to divert hundreds of thousands of gallons of stormwater from entering the city sewer system each year. It also provides insulation and aesthetic benefits.

Sentry Equipment – Saving Water

In 2006 as Sentry was preparing for a move to a new building, they were notified by Oconomowoc Utilities of a $75,915 impact fee tied to their water usage.  The utility indicated that they were using 1,440,000 million gallons per year at their existing facility.  Investigation into the major water uses in the facility identified two large water-cooled compressors on their factory floor that used water at the rate of 4 gallons a minute 20 hours a day for 260 days a year.  These were replaced with air-cooled compressors in the new facility.


“Besides the waste of time, money, and the dehumanization of opponents, the status quo is a poor way to address difficult long-term sustainability challenges.” — Matt Polsky; senior fellow for Sustainability Innovation

  1. WIGreenMasters
    WIGreenMasters: Congratulations to @thinkESI, our latest Green Masters Program participant! We love seeing your progress year to year. Welcome back!

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    WIGreenMasters: Congratulations to Aptar, our most recent Green Professional! Check out their sustainability initiatives here:

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    WIGreenMasters: "Two-thirds of the world’s largest companies acknowledging that they are exposed to water-related risks..."