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Earlier this year the Journal for AWWA had several articles about water use and infrastructure needs.  One of the major concerns that has arisen in older communities, especially in the Rust Belt and the West is that demands per person have decreased.  There are a number of reasons for this –the 1992 Energy Policy Act changes to plumbing codes that implemented low flush fixtures, the realization in the west that water supplies are finite and conservation is cheaper than new supplies, a decline in population, deindustrialization, and climate induced needs.  But all add up to the result that total water use has not really changed over the past 30 years and in many locales, water sales may have decreased.  Water utilities rely on water sales for revenues so any decrease in sales must be met with an increase in cost.  Price elasticity suggests the increase will be met with another decrease in sales, etc.  It is a difficult circle to deal with.  So less water, whether through deliberate water conservation or other means, creates a water revenue dilemma for utilities.  A concern about conserving to much and eliminating slack in the system also results.

Less water means less money for infrastructure.  Communities do not see a need for new infrastructure because there are fewer new people to serve.  Replacing old infrastructure has always been a more difficult sell because “I already have service, why should I be paying for more service” is a common cry, unless you are in my neighborhood where the water pipes keep breaking and we are begging the City to install new lines (they are on my street J)  Educating customers about the water (and sewer) system are needed to help resident understand the impacts, and risk they face as infrastructure ages.  They also want to understand that the solutions are “permanent” meaning that in 5 or 10 years we won’t be back to do more work.  Elected officials and projected elected officials (the tough one) should be engaged in this discussion because they should all be on the same page in selling the ideas to the public.  And the needs are big.  We are looking at $1 trillion just for water line replacement by 2050 and that is probably a low number(2010 dollars).  The biggest needs are in the south where infrastructure will start hitting its expected life.  The south want west will also be looking for about $700 billion in growth needs as well.  All this will cause a need for higher rates, especially with ¼ less low interest SRF funds avaialalbe this year from Congress.


Public water and sewer systems have the responsibility to protect the health, safety and welfare of the public they serve, just as engineers do.  This is includes not just complying with regulatory mandates (they are minimum standards), but enacting such precautions as are needed to address things not included in the regs.  Unfortunately we continue to pay too much attention on regulatory compliance and evaluate the condition of the system using unaccounted for water losses or leaks fixed in the system as a measure of condition.  That may be an incorrect assumption.  The problem is that unless we understand how the system operates, including how it deteriorates with time, the data from the past may well be at odds with the reality of the future.  For example, that leak in your roof can be a simple irritation for a long time if you ignore it.  But ignoring it creates considerable potential for damage, including roof failure if too much of the structure underneath is damaged.  With a water system, pipes will provide good service for many years will minimal indication of deterioration.  Then things will happen, but there is little data to indicate a pattern.  But like your roof leak, the damage has been done and the leaks are an indication of the potential for failure.  Bacteria, color, pressure problems and flow volumes are all indicators of potential problems, but long-term tracking is needed to determine develop statistical tools that can help with identifying end of life events.  Basic tools like graphs will not help here.

Construction to repair and replace local water, sewer and stormwater infrastructure is expected to reach $3.2 and $4.8 billion respectively for water and sanitary sewer. The federal SRF programs are only $1.7 Billion in SRF loans, 24% below 2012 and well below the levels identified by the federal government to sustain infrastructure condition.  The only reason for the decrease seems to be a demand by Congress to reduce budgets, especially EPA’s budget where this money resides.  But the 2008 recession and its lingering effects to date have deferred a significant amount of infrastructure investments, and the forecast does not rectify the past deficits, and likely does not address the current needs either.  Few water and sewer systems are flush with funds to update infrastructure and borrowing has become a difficult sell for many public officials.  Lake Worth, FL just had a $60 million bond issue for infrastructure redevelopment defeated by voters two weeks ago.  The officials know they need this infrastructure, but the public is unconvinced because few serious problems have occurred.  We have to get the public past this view so we can improve reliability and public safety.  Those are the arguments we need to demonstrate.  The question is how.

 


As those of you who follow this blog know, we periodically touch on climate issues.  Sea level rise is a particularly acute issue here at ground zero – southeast Florida.  But as I have said for some time, this is not an immediate crisis, but a slow steady creep that gives us time to adapt to the changes related to sea level rise.  I am optimistic that while we will spend a lot more money to engineer water management so we will need more engineers, there are solutions that will allow us to thrive here for a long time – probably a lot longer than we have been here, which is just over 100 years.

Our bigger, current challenge is the temporal but catastrophic impact of tropical storm activity that can create immediate consequences that last for years, much as Hurricane Andrew did in 1992 and Hurricane Wilma almost ten years ago.  Of course there have been others, like Donna in 1960 which were worse.  I mention this because the peak of hurricane season in Sept 10 – only two weeks away.  We have been lucky for years now, and of course we are all hoping it remains that way.

But I found another interesting article this weekend hat talked about the states with the most weather losses since 2006 (and in a subsequent blog I will look back further for comparison). is New Jersey.  OK, no huge surprise given the recent experience of Sandy.  But who is number 2?  Or for that matter 2-10?  Would you believe that Florida is not on the list at all.  Neither is California despite the fires.  Or North Carolina another hurricane prone state.

No, according to the Tribune, the states  (in order:after  New Jersey) are: Texas, Tennessee, Missouri, Alabama, Oklahoma, Mississippi, Louisiana, Colorado and Arizona.  The most common causes: thunderstorms, heavy rain, flash flood and tornados.  And the impacts range from $24 billion in New Jersey to $3.5 billion in Arizona.  An interesting factoid as we approach the peak of hurricane season.  May Florida stay off the list.


Water limitations are a problem in many areas of the US and the world. Without water, the efficiency of power plants diminishes as the folks in Washington and California have found out when converting to air cooling their facilities. Losses can be 30% of output which makes that investment in upgrading to 40% efficiency, drop back to 30. Not a good investment, unless you have no option. In water limited places in the world, cooling water will limit the ability to use water-intensive coal, nuclear and oil facilities.

Nuclear power has been argued as a green option, but it is green only with respect to carbon production. Nuclear needs copious amount of water to cool the reactor. An while it remains an ongoing option, many are wary after the Japanese experience. There are 6 licenses in the US for nuclear facilities that expire by 2020, and 27 more by 2030. That means over a third of facilities are at their useful life. Creating second generation nuclear plants is a major, challenge at a financial and political level. For the most part China, Russia and India are leading the way with the US a distant 5th in proposed next generation reactors. We just don’t see a lot of nuclear reactors on the US horizon. Why? Renewable and gas.

The power generation picture has changed significantly in 10 years with respect to large increases in wind and gas. Renewables have increased from 2.4 to 6.5% of the market in 10 years (to 266 TWh). Wind has been the largest growth area (to 167 TWh) despite ongoing environmental issues associated with migratory birds, minimum wind speeds, and lobbying against wind projects (like Bill Koch did in Cape Cod) or the tax incentives used for renewables (like the Koch brothers continue to do along with Tea Party members in Texas). Wind energy costs have dropped by 40% in 10 years and today the majority of wind energy components are built in the US as opposed to overseas. The subsidies have made this possible by limited private capital risk. Nolan County, Texas alone produced more wind than the state of California, despite the ongoing lobbying against it in Texas. Texas has the largest “wind” reserves in the US and many in the public see the need to take advantage of the high wind areas like Texas ($25 billion to date, $13 billion proposed), the Rocky Mountains and coastal areas that do not conflict with migratory birds routes, landscape views or property rights issues. The Blackfeet Nation in Montana has long known that wind is a valuable resource on the reservation. Overall the state of Montana has the second largest wind potential behind Texas. But like Texas there is conflict – in Montana from the fracking industry. Note that the upper Rocky Mountains is where NextEra installs many of its wind fields. California has also gotten into the wind market with projects proposed in the Mojave Desert, although eagle conflicts impact those permits. However, uncertainty about the ongoing tax break , caused by inaction in the House, caused new wind projects to drop 92%, with a loss of 30,000 jobs in one year which creates questions about wind power expansion in the near future.

At the smaller level, combined heat and power (CHP) generation is located at 4200 commercial and industrial facilities today. States are interested. The demand is expected to rise to 40 GW by 2020. Solar markets are often local. Some communities provide incentives for residents to put panels on the roofs. Germany did this and now 25% of their power comes from these solar projects. 2% of houses in Arizona have solar on their roofs. In Hawaii, solar power is half the cost of generated power. However local solar has run into the same issue as wind power – this time the Koch brothers-funded American Legislative Exchange Council has encouraged local power utilities in 21 states to challenge laws that permit solar installations of houses as reducing profitability of power investments by those utilities. Others, like FPL still fund such installations creating and interesting conflict in the market.

Gas has replaced coal as the dominant source, both because of less greenhouse gases and because of much higher efficiency in source-power ratios. California, Texas, Florida and New York, among the four largest power demanding states, have seen natural gas use increase significantly in the past 20 years, virtually all at the expense of coal. Fracking has been the primary reason for the expansion of gas. High quality gas can be recovered from areas through horizontal drilling, but only 3-5% of the gas in the foundation is actually removed from the initial frack. Then the returns diminish to about 10-15% of initial withdrawal within 1-3 years, and refracking must occur to increase production. 100% of the gas is unlikely to ever be achievable. Still gas reserves are likely to be producers for some time, although industry experts expect the peak of current fracking technology in 2025, much sooner than some would hope. Despite there being over 2.4 million miles of gas pipelines in the US, the biggest issue with frack gas is pipeline absence in the big fields in Pennsylvania, Ohio and North Dakota. Refineries are starting to crop up in the Midwest and Pennsylvania to address the gas needs – which may reduce the need for longer pipelines and reduce loss (currently 6%).

Fracking is also a boon to the oil industry and the ability to recovery oil from tar sands in Alberta has increased the potential supply. Like gas, the problem is pipelines, but the lack of pipelines is a boon to the railroad industry, particularly in the Bakken Fields in North Dakota where abundant rail is available via BNSF (hence Warren Buffett bought it). Tank car demands are up to meet the 400,000 tank car loads of crude oil transported in 2013. Demands are expected to climb as new generation tank cars are built to minimize risks of hauling crude oil and coal tar sand products. Tight oil recovery is expected to rise through 2019, while a slow decrease is expected thereafter based on current technology. But note the lack of pipelines create a problem in getting the gas from North Dakota to useful markets. It is estimated that $1 billion per year in gas is flared in the Bakken fields alone. Pipelines and rail are needed, but both are controversial

The pipeline solution is varied and many. North American Oil and Gas Pipelines magazine sees a high investment in pipelines by 2020, with decreasing investments through 2035 as gas recovery drops. XL pipeline has dominated smaller pipeline projects designed to bring tar sands oil to refineries in Texas and Louisiana, but there are other spurs and different pipes are planned for different purposes. The obstacles are many – political, environmental, economic through a host of forces that either benefit directly from the pipelines or that benefit from not having the pipelines (think railroads). Of course a couple of recent rail accidents have created more controversy there, but rail is the current solution for many of these remote fields.


In this blog we are going to talk about trends in the power industry and how they may affect utilities.  One of the ongoing themes of this blog is that to be leaders in the field, we need to be cognizant of what others are doing and how those actions might affect utility operations.  Power is a big cost for utilities – often 10-15% of the total operations costs where a lot of pumping is involved. In most communities, the utility system is among the largest consumers of power, which is why many utilities have load control agreements in place – power companies can off-load power demands by having the utilities go to onsite generators.  Our community’s building account for 70% or more of local energy use.

The need for power is expanding, albeit at a lower rate that population growth in many communities.  This is because new building construction measures tend to insulate better and install more energy efficient equipment.  Power companies often will subsidize these improvements to reduce the need for more expensive plant expansions.  Where expansions are needed, purchase/transfer agreements or renewables are often a convenient answer.

But long-term we are seeing that the power industry is changing in other ways too.  Already we see a migration away from coal for power generation.  This was occurring before the new regulations were in place for carbon dioxide.  Certain utility companies like NextEra, the largest wind and solar power generator in the US, and the parent of Florida Power and Light, have reduced greenhouse gas emissions from their plants by converting to other sources like combined heat and power (CHP), and increasing efficiency.  The typical oil or coal power plant is 30-35% efficient, while the newer gas turbine systems are up to 45% efficient.  That makes a big difference in costs as well as emissions when gas emissions are half the coal and oil emissions.  NextEra is well placed for carbon trading, a concept some fight, but the US had been emission trading since the early 1990s, so carbon trading markets are already in place.  The only thing needed is the regulations to put them into play.  Buy that NextEra stock now and hope for carbon trading!

But NextEra is not the only likely winner under this carbon trading scenario.  ExxonMobile is big into gas, Exelon is big in the nuclear power industry, Siemens and General Electric, which make wind and gas turbines, are also likely to see growth.  All have poised themselves years ago as the impact of carbon dioxide becomes more apparent.  Most of the industry executives acknowledge climate issues and recognize that people will expect the industry to do its part (the Koch brothers aside).  Many power generators like ConEd and FPL are making changes as well, in advance of the regulatory requirements to do so.  They see it as good business.  They also see it as a means to make more power at a given facility (by increasing efficiency) while reducing water use.  Water use can be a limiting factor, so we will discuss that in a couple days…

 

 


The good news is that for many local governments, property values are up and so is the economy, especially in urban areas.  However that does not mean that the budget approval difficulties of 2009-2012 have passed or been resolved.  In fact the arguments may continue despite improvements in financial position.  Why?  There are a number of policies that were implemented in the recession years that were especially difficult for utilities:

  1. Borrowed or transferred water and sewer monies to avoid raising taxes against falling property values (note that raising taxes on falling values would have yielded a zero sum game, but raising taxes commensurate might have “un”elected a few people
  2. Failing to have long-term financial plan and even fewer have multiyear budgets.  Included are automatic rate adjustments that some are questioning or deferring now, despite having been approved several years ago
  3. Bad investments – public or private.  In either case, if the revenues are not realized, the local entity gains no benefit.  This can include public private infrastructure investments, privatization or investing cash.  Scenarios need to be created to figure out what happens when things don’t go as planned.
  4. Failing to save for a rainy day before the crash.  Our grandparents knew we need to save for a rainy day.  We talk about the lowered level of savings among Americans and the potential issues that could arise if economic difficulties occur.  So exactly why do our elected leaders think it is a great idea not to collect monies in good times for a rainy day?  Other than politics that is?

 

We have identified four errors in public policy at the local level.  The questions for the 2015 budget are:

 

  1. Can we repay those funds we “borrowed” from during the down years?
  2. Can we keep the total revenues increasing (may not mean a tax increase, but certainly not a rollback)?
  3. Can we develop realistic scenarios for public investments.  Nothing worse than stranded infrastructure like that $6milion parking garage that grossed under $100 in the last 6 months because no one uses it because there is not business need for it.
  4. Can we develop reserve policies that allow local governments and especially utilities to create and maintain repair and replacement funds, reserves, and “savings” for the next rainy day.  It’s coming.  At some point.
  5. Can we develop a 5 year plan of where the community vision is?

I think this would be a start for a lot of us.


We are all cognizant of the low grades on infrastructure given annually by ASCE and periodically by USEPA.  We spend about 1.8% of our GNP on infrastructure.  We used to spend twice that much and it is likely that we need to spend upwards of 2.4% to stay even.  Much or our infrastructure is “forgotten” because it is buried.  American Water Works Association published a book to highlight his problem – Buried No Longer.  But is it helping.  In a recent Roads & Bridges article, they noted that the bridge system continues to age faster than the repair rate.  The states with more than 15% deficient bridges are mostly Great Plains states, and the northeast.  The latter is no surprise because the infrastructure is generally much older in the northeast.  What was also interesting was that in a recent American City and County magazine, many of the states that have bridge issues, also have below average trust among the public.  And most of the areas with the bridge issues are rural states, like North Dakota and West Virginia.  This harkens back to a prior couple blogs when it was noted that poorer, less educated people tend to live rural lifestyles, and lobby for less taxes, yet expect government to be there to resolve crises.  Interesting….

 


In the last blog we discussed 10 planning steps for sea level rises.  When planning 50-100 years other factors can come into play as well.  As a result, to allow flexibility in the analysis due to the range of increases within the different time periods, an approach that uses incremental increases of 1, 2, and 3 feet of SLR is suggested.  Hence infrastructure is built to meet milestones, not arbitrary dates lessening the potential for stranded assets.. The increments can work as threshold values in planning considerations in terms of allowing planners the ability to know ahead of time where the next set of vulnerable areas will be to allow a for proactive response approach that can be matched to the observed future sea levels.

But prior to developing infrastructure plans, the local community needs to define an acceptable level of service (LOS) for the community. A level service would indicate how often it is acceptable for flooding to occur in a community on an annual basis.  1% is 4 days per years and for a place like Miami Beach, this is nearly 2 ft NAVD88, well above the mean high tide.  The failure to establish an acceptable LOS is often the cause of failure or loss of confidence in a plan at a later point in time.  The effects of SLR of the level of service should be used to update the mapping to demonstrate how the level of service changes, so that a long-term LOS can be defined and used for near-term planning.

With the LOS known, the vulnerability assessment is developed using a GIS based map of topography and the groundwater levels associated with wet and dry season water levels.  LiDAR is a useful tool that may be available at very high resolution in coastal areas.  Topographic maps must be “ground-truthed” by tying it to local benchmarks and transportation plans.  USGS groundwater and NOAA tidal data from local monitoring stations to correlate with the groundwater information. Based on the results of these efforts, the GIS-based mapping will provide areas of likely flooding.

GIS map should be updated with layers of information for water mains, sewer mains, canals, catch basins, weirs and stormwater facilities.  Updating with critical infrastructure will provide a view of vulnerability of critical infrastructure that will be funded by the public sector. Ultimately policy makers will need more information to prioritize the needed improvements.  For example, a major goal may be to reduce Economic Vulnerability.  This means identifying where economic activity occurs and potential jobs.  At-risk populations, valuable property (tax base) and emergency response may be drivers, which means data from other sources should be added.

The next step is to analyze vulnerability spatially, by overlaying development priorities with expected climate change on GIS maps to identify hotspots where adaptation activities should be focused. This effort includes identification of the critical data gaps which, when filled, will enable more precise identification of at risk infrastructure and predictions of impacts on physical infrastructure and on communities. The final deliverable will include descriptions of the recommended concepts including schematics, cost estimates, and implementation plan.

So why go through all this.  Let’s go back to the beginning.  It has to do with community confidence in its leaders.  Resident look at whether their property will be protected.  Businesses look at long-term viability when making decisions about relocating enterprises.  The insurance industry, which has traditionally been focused on a one year vision of risk, is beginning to discuss long-term risks and not insuring property rebuild is risk-prone areas.  That will affect how bankers look at lending practices, which likely will decrease property values.  Hence it is in the community’s interests to develop a planning framework to adapt to sea level rise and protect vulnerable infrastructure through a long-term plan.  Plan or….


The rainy season has sort-of started in south Florida and with it comes flooding and discussions of the falls end of season and concurrent high, high tides for the year, flooding and the impact of sea level rise on low-lying areas.  Much focus has been spent on the causes of sea level rise and the potential flooding caused by same.  However the flooding can be used as a surrogate to impacts to the social and economic base of the community.  By performing vulnerability assessments, coastal areas can begin planning for the impacts of climate change in order to safeguard their community’s social, cultural, environmental and economic resources. Policies need to focus on both mitigation and adaptation strategies, essentially, the causes and effects of climate change. Policy formulation should be based on sound science, realizing that policy decisions will be made and administered at the local level to better engage the community and formulate local decisions.

Making long-term decisions will be important.  Businesses look at long-term viability when making decisions about relocating enterprises.  The insurance industry, which has traditionally been focused on a one year vision of risk, is beginning to discuss long-term risks and not insuring property rebuild is risk-prone areas.  That will affect how bankers look at lending practices, which likely will decrease property values.  Hence it is in the community’s interests to develop a planning framework to adapt to sea level rise and protect vulnerable infrastructure through a long-term plan.

While uncertainties in the scale, timing and location of climate change impacts can make decision-making difficult, response strategies can be effective if planning is initiated early on. Because vulnerability can never be estimated with great accuracy due to uncertainty in the rate of warming, deglaciation and other factors, the conventional anticipation approach should be replaced or supplemented with one that recognizes the importance of building resiliency.  The objectives of the research were to develop a method for planning for sea level rise, and providing a means to prioritize improvements at the appropriate time.  In addition the goals were to provide guidance in developing a means to prioritize infrastructure to maximize benefit to the community by prioritizing economic and social impacts.

Adaptation planning must merge scientific understanding with political and intuitional capacity on an appropriate scale and horizon.  According to Mukheibir and Ziervogel (2007), there are 10 steps to consider when creating an adaptation strategy on the municipal level.  To summarize, these are as follows:

  1. Assess current climate trends and future projections for the region (defining the science).
  2. Undertake a preliminary vulnerability assessment of the community and communicate results through vulnerability maps (using GIS and other tools).
  3. Analyze vulnerability spatially, by overlaying development priorities with expected climate change on GIS maps to identify hotspots where adaptation activities should be focused.
  4. Survey current strategic plans and development priorities to reduce redundancy and understand institutional capacity.
  5. Develop an adaptation strategy that focuses on highly vulnerable areas. Make sure the strategy offers a range of adaptation actions that are appropriate to the local context.
  6. Prioritize adaptation actions using tools such as multi-criteria analysis (MCA), cost-benefit analysis (CBA) and/or social accounting matrices (SAM).
  7. Develop a document which covers the scope, design and budget of such actions (what they call a Municipal Adaptation Plan (MAP)).
  8. Engage stakeholders and decision-makers to build political support. Implement the interventions prioritized in the MAP.
  9. Monitor and evaluate the interventions on an ongoing basis.
  10. Regularly review and modify the plans at predefined intervals.

 

The strengths of this framework are the initial focus on location-specific science, the use of both economic and social evaluation criteria, and the notion that the plan is not a fixed document, but rather a process that evolves in harmony with a changing environment.  The final two steps occur at regular intervals by the community with associated adjustments made.  The next question is how to develop the data and priorities.


In a prior blog we talked about the difference between urban and rural counties and the impact of the differences between incomes and how that would affect utilities.  Keep in mind that the 40 largest urban counties in the US contain nearly half the US population as do the 50 largest utilities.  So in a recent article in Governing, the focus was on the few counties where income was higher than average.  In fact, in looking at counties, within the top 20 in per capita income are 10 counties in North and South Dakota.  Interesting until you review why.  All are in areas where fracking is ongoing and corporate farming is prevelant.  It is no surprise that the fracking boom has created wealth in rural areas that have limited populations, limited regulations and state and local officials who are desperate to reduce unemployment and stimulate laggard economies.  We noted before that rural counties are often desperate for jobs, so they often ignore what could possibly go wrong when jobs and development are the only priorities for a community.  Governing used the example of Wells County, ND where the per capita income has doubled since 1997 and is 75% above the national average.  Yet the local governments are looking at which roads they will allow to go back to gravel.  How is this possible? 

The issue is not relegated to just Wells, ND.  Despite the fact that many rural communities in areas with intensive farming or fracking have grown 10-15% since 2007, local officials are finding it difficult to raise taxes to pay for infrastructure.  Roads are the most obvious and pressing issue because of the impact from fracking traffic.  As new wells are constructed, the frackers build new dirt roads and use the existing roadways.  Some believe the need to fix many of the roads is temporary so why bother, but it neglects the need to infrastructure improvements in general.  The same argument could be used for water and sewer infrastructure as well, but these wealthy rural communities do not want to increase governmental spending to improve any infrastructure, so the opportunity to address the community needs is being lost.  

What is more interesting is that the states where these rural counties exist, including the Dakotas, along with Montana, Wyoming, New Mexico, and most of the southeastern states are among the states that rely most heavily on federal funding.  So when incomes increase, the dependency remains.  These are the same states that tax residents the least, spend the least on education, have the poorest health care (and the fewest people signed up for the Affordable Care Act and few have state exchanges) and have the most people in poverty.  The dichotomy between reality and the political perception is interesting in these states, which leads one to wonder if the residents of these states like their situation and keep electing representatives that reflect this desire, or they have fallen victim to political interests that cause them to vote consistently against their better interests, or for the interests of a limited few that deny them access to the education, infrastructure, medical care and other benefits their urban and wealthier neighbors enjoy. 

That is a tough question but the bigger question is how to infrastructure agencies like utilities attempt to overcome either of these perceptions?  Neglecting infrastructure, education, medical and the like does not promote local economies, does not create jobs and more likely causes the migration of the best and brightest young people out of the community in search of better prospects, which further imperils their rural situation.  Keep in mind that most cities are relatively permanent, but fracking, like mining, oil and timber before them, have been booms and busts.  The situation if far more dire after the boomtown than it was before.  After all, what could possibly go wrong when 50,000 miners, or frackers, descend upon a community of 1,500 people?  They will consume all the resources, then leave.  Locally those well paying jobs are imported due to the lack of skills and education, and then they leave with the bust.  This has played out many times in the past.  It is not sustainable.  We need to learn from the past – when the boom hits, make the investments you need in infrastructure, education, medicine, etc. so that the future is better after the bust.