3M Water Infrastructure Space for 3M Montage © 3M All Rights Reserved. 3M Water Infrastructure General Overview Mayors Water Council Meeting 2009

2 3M Water Infrastructure Issues with aging drinking water infrastructure: Pipe tuberculation and corrosion © 3M All Rights Reserved.

3 3M Water Infrastructure Issues with aging drinking water infrastructure: Transverse Sheers and Main Breaks © 3M All Rights Reserved.

4 3M Water Infrastructure Issues with aging drinking water infrastructure: Poor Water Quality © 3M All Rights Reserved.

5 3M Water Infrastructure US EPA estimates $200.8 billion needed to rehabilitate drinking water distribution systems.  Average pipe age is 38 years or more  Pipes generally made of iron or asbestos cement  Current renewal methods are slow and disruptive: including cement mortal lining and cured in place pipe with epoxy © 3M All Rights Reserved.

6 3M Water Infrastructure Premier product 3M TM Scotchkote™ Spray In Place Pipe 269 is unique alternative for water infrastructure rehabilitation  Product Description  Two- part, structural “in-situ” lining  Rapid Setting  Does not block most service connections © 3M All Rights Reserved.  Product Usage  SIPP products in use for over 10 years worldwide  Over 10,000 kilometers of pipe lined in the UK

7 3M Water Infrastructure Scotchkote TM SIPP 269 utilizes a trenchless technology application process to complete pipeline renewal  Only two access points are created to gain access to pipes  Leaves communities intact  Provides for faster application  Does not require use of by-pass piping  Potential for same-day return to service

8 3M Water Infrastructure Benefits of Scotchkote TM SIPP 269 impact multiple levels © 3M All Rights Reserved. Environmental Reduced CO2 emissions and energy consumption* Reduces water loss throughout system Trenchless application leaves neighborhoods intact Social Minimizes adjacent civil service disruptions, such as traffic disruption and impact on local business and tax revenue Restores water quality Economic Lower total installed cost: ~ 50% of open cut allows for more rehab with the same money** SIPP provides semi –structural solution for similar costs of CML** * ** Assumptions based on average public tender data

9 3M Water Infrastructure Adding Depth to Community Relationships: Creating Local Jobs  Focus on development of local talent and local entrepreneurship opportunities  Retrain workers to support trained lining crew capacity  Engage with community leaders to increase usage, acceptance and jobs across the US  Education institutions are key participants in providing expertise and opportunity © 3M All Rights Reserved. Community Relationships Education Institutions