INFR6R12b
Ebook only
Available as an ebook
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Also part of Water Intelligence Online Digital Reference Library
Standard ePrice: £28.00
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Ebook only
Available as an ebook
Please purchase via www.iwaponline.comOpens in new window
Also part of Water Intelligence Online Digital Reference Library
Standard ePrice: £28.00
+ VAT
Green infrastructure, the use of soil, vegetation, and other natural landscape features to manage and treat water, is increasing in popularity as an alternative to traditional “grey” infrastructure for water management. However, challenges arise to the widespread adoption of green infrastructure practices because of the difficulty in evaluating, accounting for, and valuing the benefits of such practices.
This project developed new accounting frameworks to help public drinking water and wastewater utilities more accurately evaluate and catalogue their green infrastructure assets. We developed two model accounting frameworks that could be included in the unaudited supplementary disclosure of a utility’s comprehensive annual financial report (CAFR). We pilot tested these two frameworks at three participating utilities: The City of Raleigh (NC) Public Utilities Department, The City of Asheville (NC) Water Resources Department, and Clean Water Services (OR). We conducted surveys and semi-structured interviews to understand the utilities’ experiences with the accounting frameworks and how the frameworks could be improved.
This report summarizes the implications of the pilot tests, including implications of more widespread adoption of the accounting frameworks, and contributes to the growing body of knowledge surrounding green infrastructure, by offering two approaches for accounting and evaluation that more accurately reflect the value that green infrastructure provides for water utilities. This report also outlines the limitations of these frameworks and suggests future research needs.
U.S. water utilities are grappling with a diverse suite of challenges. Aging water infrastructure, changing weather patterns, rising demand for clean water, higher water treatment costs, and other...
The objectives are:
Granular-media filtered secondary effluent from a full-scale plant was subsequently treated at pilot-plant scale by combinations of low- and high pressure membranes. The feedwater was split...
A flare efficiency estimator (FEE) tool is part of Water Environment Research Foundation (WERF) project U2R08 entitled Methane Evolution from Wastewater Treatment and Conveyance under WERF’s...
This work was performed to better understand the factors that impact trace organic compound (TOrC) biodegradation kinetics in mixed microbial cultures. To accomplish this goal, optimized short-...
Treated wastewater effluents contain high concentrations of particles; many of these particles are large (with diameters greater than 100 μm) and consist of densely-packed bacterial cells. ...
Onsite wastewater treatment systems (OWTS) are an important part of water management infrastructure in the United States. Thus, proper OWTS selection, design, installation, operation and...
Performance assessment has been one of the hottest topics in the water industry in the past decade. In that period, the International Water Association has played a key role, and the performance...