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Sustainable Water Investment Group, LLC

We work with public and private clients to solve complex water quality challenges and meet regulatory requirements. SWIG is led by the three partners with over 3 decades of experience developing, financing, managing and implementing complex water and ecosystem improvement projects. 

What WE Do

We develop turn-key solutions: supervise design and construction, and provide long-term operational management. 

  • Audit existing water quality data and develop the appropriate treatment solutions
  • Provide private investor capital to finance treatment facilities, allowing public agencies to build more quickly than lengthy public bond projects allow
  • Offer complete scientific and engineering resources necessary to support projects at any scale, from start to finish
  • Supervise facility construction to maintain quality control
  • Operate and maintain the treatment facilities for entirety of the project

Who We Are

Jerome Ryan. Mr. Ryan is a recognized leader in the ecological mitigation industry. He has raised capital and managed the certification and operation of mitigation projects in Washington State, Florida and Alaska. He led the first public/private partnership to create the first commercial wetland mitigation bank in Alaska, where he partnered with the Matanuska Sustina Borough (the fastest developing area of Alaska, adjacent to Anchorage) to utilitize their land holdings to create compensatory mitigation credits. 


Mark Merkelbach. Mr. Merkelbach is CEO at Green Earth Operations, Inc., a civil engineering firm in Seattle, WA with a long resume of projects in US and Asia. He is a civil designer and professional wetland scientist (PWS) who has managed the design and construction of hundreds of water quality projects, including some of the largest GSI projects in China. He worked with Jerome Ryan in developing the Alaska and Washington State wetland mitigation banks that have a book value of over $250 million dollars. He excels at building the right teams to navigate local politics and address technical challenges to ensure project delivery.


William Lucas, PhD. Dr. Lucas is a principal at Green Earth Operations, Inc. Since 1986, Dr. Lucas has developed innovative green stormwater infrastructure (GSI) designs and engineering approaches, drafting Delaware's Green Technology Manual, verifying Philadelphia's Green Infrastructure modeling, and developing detailed models for one of the largest urban GSI retrofits in the US. Dr. Lucas has designed some of the largest GSI projects in China. He holds two US and ten international patents for his treatment technology, with several other patents pending. Dr. Lucas is internationally recognized for his application of the engineering and science involved in GSI, with over 500 citations of his work in peer reviewed journals.


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