Erik Porse, PhD

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Natural Gas Use in L.A. County

CC BY-SA 2.0, File:Aliso Canyon gas leak site, Dec. 14, 2015 (23389378449).jpg, Created: 14 December 2015

The shutdown of the Aliso Canyon natural gas storage facility has threatened the reliability of energy supplies in Southern California. Reducing natural gas demands, especially during peak periods of summer and winter use, is critically important to preserve uninterrupted electricity and natural gas services throughout the Los Angeles metropolitan region. In winter, natural gas consumption […]

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Groundwater Use in Urban Development

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Groundwater is an important water source in urbanized areas.  Cities across many geographies and climates, including Beijing, Mexico City, Buenos Aires, Los Angeles, Bangkok, Houston, Tokyo, Perth, and Lima, have all utilized groundwater to supply much of their potable water needs at some stage of development (Howard and Gelo 2002).  Groundwater provides a significant portion […]

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Managing Arroyos in Los Cabos

This entry is also posted on the Sustainable Cities International blog, which gives updates of work from SCI’s Affiliated Researchers and interns working with member cities throughout the world.  A quiet evolution is taking place in how we use and move water within cities throughout the world.  In Los Cabos, Mexico, where I am working […]

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Hybridization in Stormwater Infrastructure and Governance

Water infrastructure is typically about pipes and bills.  Most cities have dedicated departments that manage water distribution, sewage, and stormwater systems.  Today, however, new designs for more sustainable urban development are re-considering how we deliver these services for residents.  Rather than provide and manage water through centralized services, what are the opportunities and challenges associated […]

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Stormwater Management and Governance in San Francisco

An excerpt from a recently published journal article on governance of urban stormwater systems in future cities…. San Francisco provides a relevant example to understand governance changes related to future stormwater systems. The San Francisco Bay Area has a total population of over 7 million people in nine counties and is dominated by San Francisco Estuary, […]

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Treating Water in the Home

Treating water in a home or a building may be relevant in a few situations.  First, in communities without sufficient capital to build water treatment facilities, residents are forced to drink bottled water.  This happens thorughout the world, from the farmlands of East Africa to the rural communities of California.  Second, many in the sustainability […]

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Urban Water and Governance

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Water infrastructure is typically about pipes and bills.  Most cities have dedicated departments that manage water distribution, sewage, and stormwater systems.  Today, however, new designs for more sustainable urban development are re-considering how we deliver these services for residents.  Rather than provide and manage water through centralized services, what are the opportunities and challenges associated […]

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Understanding Arsenic in Drinking Water

Arsenic is a naturally-occurring element that can leach into groundwater and surface water from rocks and minerals.  In most areas, natural levels of arsenic in water are less than 1 ppb, though some communities, particularly in the Western U.S., have recorded natural arsenic levels in water sources over 10 ppb1.  Arsenic can have both acute […]

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Enlightening Facts for UV & Water Treatment

Ultraviolet (UV) disinfection uses electromagnetic radiation to kill microorganisms such as protozoans, bacteria, and viruses damaging their genetic material (DNA and RNA).  While UV radiation applications for treatment are a century old, date to, improved cost-effectiveness and concerns over conventional disinfection methods have increased the popularity of UV disinfection in recent decades.  In the U.S., […]

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Point-of-Use Water Treatments

The cover image for this post comes from FreshHome.com and is just fantastic and quite fitting for a blog post on Point-of-Use treatment, so I had to use it and give all the attribution in the world possible. A variety of physical and chemical point-of-use (POU) treatments exist1.  The most prevalent treatment approach in homes […]

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