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Optimizing Water Supplies in the Face of Climate, Economic and Population Demands

February 26, 2013
Climate, Environment, infrastructure, Leadership, management, power demands, power-water nexus, sustainability, Uncategorized, water supplies
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The world population is expected to grow to over 9 billion by 2050, an exponential trend that has continued for several hundred years and see no end it site.  Megaregions as people flock to cities and industry will be commonplace.  The question is how will water supplies be impacted, or impact this trend.  Interestingly it varies everywhere.  For example, China and India are not expected to reap major benefits from climate changes, so their economies will grow as will populations.  They continue to construct coal fired power plants, and impact carbon dioxide and pollution levels, which does not help the climate issues.   Recall that Beijing was basically shut down for several days recent due to smog – seems like I recall the first air pollution regulations stemming from Henry the VIII decision to move the coal plants out of London during his reign 500 years ago because of pollution, but perhaps we need to relearn history J.  Of course China and India are expected to be less affected than the more historically developed countries in the northern latitudes that have been moving to renewable and less impactful power solutions with good reason.  Aside from these two economies, the rest of the northern latitudes are likely to see changes in temperature, variation in precipitation patterns and drought frequency changes.  That has major impacts for a billion people who will see water supply shortages occur much more often, and create a whole host of “winners” and “losers” in the water supply category.  Conflicts may result from the need to change increase water supplies as desperation kicks in.  Lawrence Smith, in his book 2050, suggests that while the far northern countries, the US, Russia, the Scandanavian countries, and Canada may see more land for agriculture and more water (at least in some areas), those warmer countries in the sub-Sahara, will become more desperate and dangerous to the world order.  Water will be the new oil, and the tipping point for sustainability, akin to peak oil, needs to be developed.  The cost will be significant, but the failure will be catastrophic to global economies.  This is part of why the global pursuit of renewable power, local solutions and green jobs.  It is why the definition of sustainable water supplies continues to evolve as we understand that the impacts, or the constraints of water supplies is far more reaching than most engineers and planners have traditionally dealt with.  AWWA published a Sustainable Water CD several years ago.  It was a series of papers of different aspects of sustainability as applied to water resources.  The last paper summarized the findings and compared it to the initial paper discussion.  The conclusion was the concept is evolving.  Climate, power, agriculture, natural systems, local economies, local economic contributions to regional and national economies and politics all impact pure science recommendations for water supply allocation.  The question is can we overcome the politics to create a optimized science solution to sustain water supplies and economies.  An old Native American proverb comes to mind:  We do not inherit the Earth from our grandparents, we borrow it from our grandchildren.

Sea Level Rise may Impact low lying areas faster than we think

February 23, 2013
Climate, communciations, Environment, groundwater, infrastructure, Leadership, Marketing water, planning, power demands, power-water nexus, sanitary sewer, sea level rise, stormwater, sustainability, Tidal flooding, Uncategorized, water sewer management
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One of the major issues involved with climate changes is sea level rise. Florida has experienced 9 inches of sea level rise since 1900. Projections are 2-3 feet by 2100, perhaps more. Modeling done by my students and I at FAU has demonstrated that in low lying areas, sea level rise will also impact groundwater levels, and accelerate inland flooding. The graphs above compare the traditional bathtub model used by most investigators and our adjusted for groundwater level model. You wee added inland areas of flooding which complicated storm water flooding issues much faster than sea level rise might indicate.

What do you believe are the three biggest water challenges in the U.S.?

February 15, 2013
Climate, communciations, Environment, finance, funding, infrastructure, Leadership, management, Marketing water, planning, Uncategorized, water sewer management, water supplies
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This question has been asked a couple times on on-line discussion groups.  It usually results in a short list of answers.  The number one answer is usually getting a handle on failing infrastructure.  The US built fantastic infrastructure systems that allowed our economy to grow and use to be productive, but like all tools and equipment, it degrades, or wears out with time.  In addition, newer infrastructure is more efficient and works better. In many ways we are victims of our own success. People have grown used to the fact that water is abundant, cheap, and safe. Open the tap and here it comes. Flush the toilet and there it goes, without a thought as to what is involved to produce, treat and distribute potable water as well as to collect, treat, and discharge wastewater. Looking to the future, we should take education as one of our challenges.  Our economy and out way of life requires access to high quality water and waste water. So this will continue to be critical.  But utilities have not been proactive in explaining the condition of buried infrastructure in particular, and need more data. The same goes for roadways and many buildings.

Cities are sitting on crumbling systems that have suffered from lack of adequate funding to consistently maintain and upgrade.  In part this is because some believe that clean drinking water is a right instead of a privilege to be paid for. We gladly pay hundreds of dollars per month for cable television and cell phones, but scream at the costs for water delivered to out tap. The discussion usually continues along the lines of utilities are funding at less than half the level needed to meet the 30 year demands while relying on the federal government, which is trying to get out of funding for infrastructure for local utilities. Utilities are a local issue which is some ways makes this easier. Our local leaders to send help with the education (after we educate them), send less money going to the general funds and more retained by utilities.

Perhaps where we have failed is in educating the public. Public agencies are almost always reactive, as opposed to pro-active, which is why we continuously end up in defensive positions and at the lower end of the spending priorities. So we keep deferring needed maintenance. The life cycle analysis concepts used in business would help. A 20 year old truck, pump, backhoe, etc just aren’t cost effective to operate and maintain. We are not very successful at getting this point across.

Money is an issue, and will always be, but the fact that local officials are not stressed about infrastructure is in part because utility personnel are very good at our jobs, minimizing disruptions and keeping the public safe. We are not “squeaky wheels” and we don’t market our product at all. Afterall, is cable or your phone really more valuable that water and sewer?

The Way of the Wolverine

January 30, 2013
Climate, communciations, Environment, finance, funding, infrastructure, Leadership, management, Marketing water, planning, sustainability, water sewer management
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Last week, the headline in the morning newspaper and on-line news outlets report the most recent suggestions from the House of Representatives to cut the federal budget deficit involves major cuts to domestic programs.  No surprise there.  Among those that are proposed to be cut significantly is infrastructure investments.  Infrastructure is what allows our country to thrive.  Without water, sewer, roads, airports, ports, etc, the economy could not be as robust as it has been, and will not achieve its greatest output.  The fact that our elected leaders don’t see infrastructure investment as a high priority is problematic.  More problematic is that this appears to be an ongoing position of some in Congress, meaning there is likely more of this view at other levels of government.  But it ignores that facts.  This country has always grown after investments in infrastructure, not before.  The federal government has been involved in infrastructure since the beginning of the country, and actually accelerated its involvement after WWII, including water and wastewater upgrades starting immediately after WWII.  The monies to improve water and sewer systems increased after the passage of the Clean Water and Safe Drinking Water Acts.  Recall that President Nixon, a conservative republican, sponsored the new federalism concept that greatly expanded the amount of federal block grants to local governments. In part this was due to the perceived need to help local governments catch up with improvements needed in connection with new federal rules, like the Clean Water Act and Safe Drinking Water act.  The high point in federal aid for infrastructure.

The trend was reversed in mid-1980s, when most of the grant programs were converted to loan programs, with the idea that the federal government would wean the utility industry off federal entitlements within 30 years.  The current concern over budget deficits and taxes further weakens the prospects of large scale federal flow –throughs to assist local governments with infrastructure upgrades, water and sewer included.  Given that the current water and sewer needs exceed over $1 billion in the next 30 years, and current funding levels are expected to derive half that amount, the infrastructure needs gaps will continue to widen, with potentially more common failures in piping systems, and impacts to local economies.  It is a viscous circle that needs to end, and one that can only have negative long-term effects for us.   In part the issue is political will, but also the failure of non-elected executives to fully grasp the issue, and adopting the way of the wolverine – to fight and scrap, climb, scramble and investigate new means to defend what is their’s.  The analogy is that utility personnel, and the upper management they report to, need to take “ownership” of their utilities infrastructure, and urge the decision-makers to do the same.  We need to defend our infrastructure, and we have the means to do it.  The time may be right to push this issue locally.  The economy is looking up.  Property values are starting to climb, and commercial activity is slowly creeping back.  The result will be more tax money available to general funds, many of which have been living large off the utility system.  Seems like this would be a good time to reverse that trend.

The failure to do so creates difficulties, not unlike those faced by wolverines today.  The wolverine suffers from effects placed on it by others.  There are only 500-1000 in the United States as opposed to the many that were here before hunting, farming and other development.  A second “way of the wolverine” is decline because they cannot fix the problems caused by others.  Unlike the wolverine, we have the power to prevent our decline.  We need to do so.

Leadership with Water-Energy Nexus?

January 26, 2013
Climate, communciations, Environment, finance, groundwater, infiltration, infrastructure, Leadership, management, power demands, power-water nexus, sanitary sewer, sustainability, water sewer management, water supplies
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In our prior blog discussions the theme has been leadership.  Vision is needed from leaders.  In the water industry that vision has to do with sustainability in light of competing interests for water supplies, completion for funds, maintaining infrastructure and communicating the importance of water to customers.  The need to fully to optimize management of water resources has been identified.  The argument goes like this.  Changes to the terrestrial surface decrease available recharge to groundwater and increase runoff.  Urbanization increases runoff due to imperviousness from buildings, parking lots, and roads and highways that replace forest or grassland cover, leading to runoff at a faster rate (flooding) and the inability to capture the water as easily.  In rural areas, increased evapotranspiration (ET) is observed in areas with large-scale irrigation, which lowers runoff and alters regional precipitation patterns. At the same time there are four competing sectors for water:  agriculture (40% in the US), power (39% in the US), urban uses (12.7%) and other.  Note the ecosystem is not considered.

New water supplies often have lesser quality than existing supplies, simply because users try to pick the best water that minimizes treatment requirements. But where water supplies and/or water quality is limited, energy demands rise, often to treat that water as well as serve new customers. For many non-industrial communities, the local water and wastewater treatment facilities are among the largest power users in a community.  Confounding the situation is trying to site communities where there is not water because the power industry needs water and the residents will need water.  It is a viscous cycle.  When you have limited water supplies, that means your development should be limited.  Your population and commercial growth cannot exceed the carrying capacity of the water supply, or eventually, you will run out.  Drawing water from more distant place can work for a time, but what is the long-term impact.  Remember the Colorado River no longer meets the ocean.  Likewise the Rio Grande is a trickle when it hits the Gulf of Mexico  As engineers, we can be pretty creative in coming up with ways to transfer water, but few ask if it is a good idea.

Likewise we can come up with solutions to treat water that otherwise could not be drunk, but, that may not always be the best of ideas. Adding to the challenge is that planning by drinking water, wastewater, and electric utilities occurs separately and is not integrated. Both sectors need to manage supplies for changes in demands throughout the year, but because they are planned for and managed separately, their production and use are often at the expense of the natural environment.  Conflicts will inevitably occur because separate planning occurs (for a multitude of reasons, including tradition, regulatory limitations, ease, location, limited organizational resources, governance structure, and mandated requirements). However, as demands for limited water resources continue to grow in places that are water limited, and as pressures on financial resources increase, there are benefits and synergies that can be realized from integrated planning for both water and electric utilities and for their respective stakeholders and communities. The link between energy and water is important – water efficiency can provide a large savings for consumers and the utility.   As a result, there is a need to move toward long-term, integrated processes, in which these resources are recognized as all being interconnected .  Only then can the challenges to fully to optimize management of water resources for all purposes be identified.

Anybody have any good examples out there?

Energy Leadership in the Water Industry

January 23, 2013
Climate, Environment, groundwater, infrastructure, Leadership, management, planning, power demands, power-water nexus, sustainability
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Water and energy systems constitute the foundation for modern civilization around the world.  Without water, societies never get started, and without power, it is difficult for economies to grow.  At the same time, modern power generating equipment needs water for cooling and processes, creating an interdependency between water and energy infrastructure and potential for conflict over water resources. As a result, the Energy-Water Nexus is a topic of great interest and discussion among federal policy-making and regulatory entities; private and public sector water and electric utilities; state and local governments, and many supporting technical, educational, professional associations. At the nexus of water and energy exists a host of societal issues, policy and regulatory debates, environmental concerns (local and global), technological challenges, and economic impacts that must be balanced or optimized to permit ongoing economic development for all (NETL, 2008).

Estimates indicate that from 1950 to 1980, demands for water increased steadily across all sectors, with 1980 being the peak water use year.  However, since 1980, withdrawals declined.  Despite the overall decline, the built environment demands continued increase. This of course ignore the natural environment demands, which may play a large part in the economic stability of some regions.  Unlike water demands, the total US power consumption continues to climb as a result of population increases.  The US Census Bureau (2004) projects that the national population will increase from 282 million people in 2000 to 420 million by 2050.  The Energy Information Administration (EIA) project, assuming the latest Census Bureau projections in its reference case, the U.S. population to grow by about 70 million in the next 25 years and electricity demand to grow by approximately 50 percent (EIA, 2006). More people, means more power.  More power means more water for cooling unless all new power is solar or wind, something highly unlikely.  On the current track, which suggests and expansion of fossil fuel plants, the power sector may be highly vulnerable to changes in water resources, especially those that are already occurring, and are likely to intensify, as result of climatic changes (Vorosmarty et al 2000, Bates et al 2008, Dai 2010, NETL 2010d).

Adding to the challenge is that planning by drinking water, wastewater, and electric utilities occurs separately and is not integrated. In the US, the energy sector uses 39% of the water withdrawals on an annual basis for cooling, immediately behind the 40% used by agriculture (Lisk et al, 2012; GAO, 2012).  Urban demands (12.6% of water use – Sanders and Webber, 2012) require clean water supplies to protect public health.  Both sectors need to manage supplies for changes in demands throughout the year, but because they are planned for and managed separately, their production and use are often at the expense of the environment (NREL, 2011). This separate planning occurs for a multitude of reasons, including tradition, regulatory limitations, ease, location, limited organizational resources, governance structure, and mandated requirements. However, as demands for limited water resources continue to grow among all sectors, and as pressures on financial resources increase, there are benefits and synergies that can be realized from integrated planning for both water and electric utilities and for their respective stakeholders and communities. The link between energy and water is important – water efficiency can provide a large savings for consumers and the utility.  Reduced energy consumptions benefits the consumer – but should always be considered as one of the first steps (Gould, 2011).  As a result, there is a need to move toward long-term, integrated processes, in which these resources are recognized as all being interconnected (NREL, 2011).  Only then can the challenges to fully to optimize management of water resources for all purposes be identified (Scanlon et al 2005).

The lack of planning creates the situation where competition for water between agriculture, power and urban uses will reach a tipping point (or beyond in many basins) as an expected increase in thermoelectric capacity by electric utilities, and an increasing prevalence of droughts could induce possible water shortages.  By 2025, Ciferno (2009) suggests the most vulnerable areas for water shortages are fast growing areas:  Charlotte, NC, Chicago, IL, Queens, NY, Atlanta, GA, Dallas, TX; Houston, TX, San Antonio, TX, and San Francisco.  Immediately behind these areas are Denver, CO; Las Vegas, NV; St Paul MN, and Portland OR (Ciferno,2009). Hightower (2009) notes that virtually all the states west of the Mississippi and many southeastern states will experience regional or statewide water shortages in the coming decade (2010-2020).  The South and the Southwest are particularly vulnerable (Glassman, et al, 2011) because they rely on air conditioning to provide a comfortable environment, which requires more power for a growing population, requiring more water for cooling power plants.

These projections come with recent experience that is likely to foretell the future.  The south, Texas and parts of the west have had repeated drought periods in recent history.  During the summer and fall of 2007, a serious drought affected the southeastern United States.  River flows decreased, and water levels in lakes and reservoirs dropped. In some cases, water levels were so low that power production at some power plants had to be stopped or reduced (Kimmel and Veil, 2009). The Tennessee Valley Authority (TVA) Gallatin Fossil Plant is not permitted to discharge water used for cooling back into the Cumberland River due to thermal pollution (water > 90 F) (WSMV Nashville 2007; Kimmel and Veil, 2009; NETL 2009c).  Nuclear and coal-fired plants within the TVA system were forced to shut down some reactors (e.g., the Browns Ferry facility in August 2007) and curtail operations at others. This problem has not been limited to the 2007 drought in the southeastern United States. A similar situation occurred in August 2006 along the Mississippi River (Exelon Quad Cities Illinois plant).  Other plants in Illinois and some in Minnesota were also affected (Union of Concerned Scientists 2007). The production of gas from oil shale and biofuels has exacerbated the issues in the Plains states (Kansas, Oklahoma, Texas), Upper Rocky Mountains, and the Ohio River Valley (Hightower, 2009; Kimmel and Veil, 2009).  DOE (2006) specifically identifies where new power plants have been opposed because of potential negative impacts on water supplies (Tucson Citizen, 2002; Reno-Gazette Journal, 2005; U.S. Water News Online, 2002 and 2003; Curlee, 2003). Recent droughts and emerging limitations of water resources have many states, including Texas, South Dakota, Wisconsin, and Tennessee, scrambling to develop water use priorities for different water use sectors (Clean Air Task Force, 2004a; Milwaukee Journal Sentinel, 2005; GAO, 2003; Curlee, 2003; Hoffman, 2004; U.S. Water News Online, 2003)

So what is currently happening?  Current legislation  is mostly silent on the power-water nexus.  This is not to say that little is being done. A number of federal agencies are actively involved with the power-water nexus, including DOE, via NETL, and NREL, NOAA, USEPA via water Wise and Energy Star, BLM though management of land and water resources in the west, USDA and Department of the Interior/USGS which inventories water supplies.  However, DOE (2006) noted that collaboration on energy and water resource planning is needed among federal, regional, and state agencies as well as with industry and other stakeholders.  GAO (2012a) notes that the growth in water and energy demands is occurring at a time when the nation’s supplies are stressed by a growing population, a variety of new and changing uses, and environmental challenges such as climate change, but none of the involved agencies consistently or strategically collaborate on to ensure a harmonized approach to energy and water resource planning.

Effective integrated energy and water policy planning will require identifying the individual and cumulative impacts that power plants have on water resources and the vulnerabilities of specific power plants to changes in water resources (Wilkinson 2007, Scott and Pasqualetti 2010;Stillwell et al 2011; Kenney and Wilkinson 2012). From a systems perspective, a sustainable society is one that has in place the institutional, social and informational mechanisms to keep in check the feedback loops that cause exponential population growth and natural capital depletion.  A sustainable world is not a rigid one, where population or productivity is held constant.  Yet sustainability does require rules, laws and social constraints that are recognized and adhered to by all (Meadows, 2005).   Integrated planning implies removing silos, working collaboratively, and using resources wisely. It implies using the combined intelligence of multiple parties in the planning and fulfillment of goals. It implies linking a vision, priorities, people, and institutions into a flexible system of evaluation and decision-making.  In other words, leadership.

Details on refrences available

SUSTAINABILITY THROUGHOUT TIME – BUT NOW WHAT?

January 10, 2013
communciations, Environment, finance, groundwater, infrastructure, Leadership, management, Marketing water, planning, sustainability, Uncategorized, water supplies
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I was cruising through Glacier Bay National Park when I wrote this blog.  It was just one of those inspirational momentsl  If you have never seen it, you should, especially as a water professional.  The entire park is a testament to the power of water and the result of changes in climate cycles that affect the hydrologic cycle.  I will post video of the journey separately, but suffice it to say that the inherent beauty of the place is difficult to describe.  Needless to say with a large concentration of glaciers in the area (most retreating), there is copious amounts of water (for now).  The Pacific Glacier has retreated 65 miles, yes MILES, in 300 years in part because of changes in oceanic moisture and evaporation.  The native people, Tlingets, moved and survived based on glacier flows end ebbs.  But that’s not my point.  Seeing this much water leads to an entirely different perspective, one that is helped by Brian Fagan’s book, Elixir which outlines the history of civilizations as they were affected by harnessing of water, or the lack of ability to do so.  Same thing applies to the Tlingets here.

Historically the key was to rely on surface waters where they were consistent, to manage water locally and carefully for the benefit of all, and when surface waters were not consistent enough to be reliable year after year, quanats, shallow wells and other mechanisms were used to extract water from glacial till or adjacent to rivers (riverbank filtration or infiltration galleries in today’s vernacular).  Or people moved or died out. The ancient people did not have the ability to dig too deep, but were creative in means to manage available supplies.

Contrast this to today where over the last 50 years we have been able to extract water from ever expanding, generally deeper sources, but to what end?  Certainly we have “managed “ surface waters, by building dams, diversions and offstream reservoirs.  These supply half the potable water use in the United States and Canada as well as a lot of irrigation.  But groundwater has been an increasing component.  Fagan makes the point that deep groundwater sources are rarely sustainable for any period of time, and that many in the past have recognized this limitation.  But have we?

Maybe not so much.  A couple years ago I was at a conference out west.  The session I was speaking at involved sustainable groundwater, a major issue for AWWA, ASCE, NGWA and the utilities and agricultural folks around the world.  One of the speakers was a geologist with the State of Utah.  Her paper concerned the issues with decreasing groundwater levels in the St. George and Cedar City, areas in southwestern Utah, where population growth is a major issue.  Her point was that despite the State efforts, they had significant drawdowns across the area.  Keep in mind that the USGS (Reilly, et al, 2009) had identified southwestern Utah as one of many areas across the US where long term decreasing groundwater levels.  My paper was a similar issue for Florida, so I stopped partway into my paper and asked her a question:  has any hydrogeologist or engineer trying to permit water in the area ever said the water supply was not sustainable?”  The room got really quiet.  She looked at me and said, “well, no.”  In fact the audience chimed in that they had never heard this from their consultants either.  The discussion was informative and interesting.  Not sure I really finished my presentation because of the discussion.

To be fair, consultants are paid to solve problems, and for water supplies, this means finding groundwater and surface water limited areas like Utah when their clients request it.  So you don’t expect to pay your consultant to find “no water.”  But where does that lead us?  The concept of sustainable yield from confined aquifer systems is based on step drawdown tests.  Ignoring the details, what this constitutes is a series of short term tests of the amount of drawdown that occurs at different pumping levels. AWWA’s manual on Groundwater can give you the details, but the results are short-term and modeling long-term results requires a series of assumptions based on the step drawdown test.  This is that had been submitted in support of permits in Utah (and many other places).  As discussed in the conference session, clearly there is something wrong with this method of modeling and calculation because, well, the results did not match the reality.  The drawdowns increased despite modeling and step drawdown tests showing the demands were sustainable.  Clearly wrong.  Competing interests, the need to cast a wider net, and many other issues are often not considered.  The results play out throughout the world.  Confined aquifers are often not sustainable, a potential problem for much of agriculture in the farm belt of the US.  Are we headed the same direction as ancient people?

The good news is that these same hydrogeologists and engineers have the ability to help solve the sustainability problem.  We need a new definition for “safe yield.”  We need a better means to estimate leakance in aquifers.  A project I did with injection wells indicated that leakance was overestimated by a factor of 1000 to 10,000, which would drastically alter the results of any model.  More work needs to be undertaken here.  The overdraw of confined groundwater is a potential long-term catastrophe waiting to happen.  And the consequences are significant.  The question is can we adapt?

But when we start to look at resource limitations, who stands up and says, this type of withdrawal is not the right answer.  We need another one.  Where is that leadership moment?

How to Keep Federal and State Economic Issues from Trickling Down to Local Funding

December 8, 2012
communciations, funding, infrastructure, Leadership, management, Marketing water, planning, water sewer management
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One of the ongoing discussions at all levels of government is the lack of funding for many programs as a result of economic difficulties in 2008.  Economic difficulties are nothing new.  We had economic downturns in late 1970s/early 1980s, 1991-1992, 1999-2000, and 2008-2009 as examples, and we have often incurred the same issues.  Unfortunately it appears to the general public that we make many of the same mistakes over and over.  From a federal level we hear the argument about the need for tax cuts to spur spending in the private sector, while Keynesian economists who suggest greater expenditures by government to pull us out of economic difficulty.  Both arguments have their points, but how opposites can solve the same problem is difficult for the public to see.  Perhaps a little understanding of the economic sector and analogies to our personal lives and the water industry would help us.

From the perspective of an ongoing growing economy, the goal would be to have the consistently increased gross product, growing at a reasonable rate, just as it seems reasonable for our salaries to rise at or above inflation rates and our ability to “bank” water for those growth spurts are common pursuits.  From a national perspective, you know you are doing well when your economy grows just over the rate of population growth.  When it grows a lot faster, economists worry about overheating.  These high growth rates have occurred as recently as 1996-1999 and 2002-2007, but are often associated with economic “bubbles” which means that a specific sector seems to be growing really faster, creating a demand for investments that further drive up the perceived value.  The benefit to utilities and governments for these growth spurts was that revenues generally grew faster than the costs.

 

Of course bubbles are speculative, and at some point investors realize the value is not there and stop investing.  The sector collapses wreaking havoc on the economy, resulting in the economy not growing at a rate exceeding the population growth.  In these cases, the revenues to fund those services people expect, grow slower than population or may even decline as they did in 2008-2009.  Government has not been able to deal with these changes well, but from a personal perspective, these ups and downs are common in peoples’ lives, and we try to deal with them by putting money away in the proverbial “savings for a rainy day.”  Businesses have historically tried to do this as well and utilities try to secure water sources for the same reasons.  However, many governments have not, and it is worth trying to understand why not, the impact it has today and how to resolve the issue going forward.

Two things appear to drive the issue, and they are related to the two schools of thoughts on economics.  First there is a tendency to spend at the level of your revenues.  People, companies and governments all do this.  So in good times, our expenses often rise to match revenues, partly for catch-up purposes, but partly simply because there is more disposable income.  When revenues greatly exceed expenditures, there can be a tendency by utilities and governments to reduce their revenues by cutting rates reducing taxes and the proverbial thought that “people can better manage money than government.” We saw this in 2001 after the federal government finally balanced the budget and started creating surpluses (that could have been used to pay off some of the accumulated debt, but that’s an entirely different story).  Many states saw the same phenomenon (Florida is an excellent example).  However this thought process is akin to a person who goes to his or her boss and asks them to reduce their salary because they are accumulating too much money.  No person ever does this.  Instead we bank that money for the “rainy” day.   So does it make sense for government to cut their revenues in the surplus times?

Consider that down times follow surplus times.  If revenues are reduced during times of plenty, there is no savings for that “rainy” day.  As a result the current path leads to a tendency to suggest cuts in expenses in down times, but this actually exacerbates the economic problem.  Income decreases and because demand is down, prices fall (basic supply and demand).  As expenses decrease, the economy contracts, which means even more people are affected – it can be a vicious circle.  Economic disruption creates a negative impact on government revenues, sometimes disproportionately.  So by reducing revenues in the surplus times, actually compounds the impact of economic downturns, by eliminating the potential for expenditures from savings, requiring spending from borrowing.

At the federal level, we hear the tax cuts versus more spending argument, but neither addresses what individuals have long known – we need to bank surpluses, not ask for pay cuts or extensively borrow in lean times.  The concept of Keynesians is that government should make up the difference between the private and public sector spending to maintain the level of spending in the total economy, but Keynes did not say that is should all come from borrowing.  There is an implicit assumption that some of this should come from savings, just like it does for individuals.  Heavy borrowing can complicate future revenues by increasing future revenues needs, the other side of the argument.  Trying to make up for revenue shortfalls increasing rates and fees when the funds of people and corporations are limited, compounds their problem.  The economy may grow to make up for those cuts, but that is a speculative argument.  The results of austerity is evident in Spain, Greece, Italy and Ireland where their economies continue to contract, not improve.  That solution clearly does not work.  That’s like asking for a pay cut and reducing your expenses significantly – you don’t live better and those depending on you  don’t either. Cutting revenues while increasing expenses creates the worst of both worlds and makes future concerns even more of a problem.  The federal conundrum is, well, a conundrum.  Not sure what the solutions are there, but there are no easy choices and few of us have much control of input.

But locally ourselves and our utility systems, are completely under our control.  A modification to the paradigm of economic needs or our utilities for the future of our system is needed.  We should rethink our economic vision for the next cycle to mimic what many people attempt to do.  We need to figure out what our revenues need to be, and plan long-term for maintaining a given revenue flow.  There will be up and down times, but we can plan for these.  We should create policies that denote that revenues in excess of expenditures should be banked for that “rainy day.”  We should control the urge to expand expenses in the good times.  We should then use those banked revenues for the future.  Then when the next economic downturn hits, we have banked revenues that can be used to maintain the level of service to our customers.  We should have a policy on this as well.   The benefit to utilities is that the investment in lean times often comes at a reduced cost (demand is down so prices fall), while providing an economic stimulus locally (more jobs).  The City of Dania Beach’s nanofiltration plant had this benefit – 70 cents on the dollar costs, plus a grant.  100 jobs created.  Policies on generating surpluses and spending them in lean times on projects like this would seem to make things easier for everyone in the future, but to follow such a trek requires leadership, policies, and self control within the organization.

The question is where is that leadership coming from to make these decisions and to resist political expediency?

Creating Expectations

November 7, 2012
communciations, finance, funding, infrastructure, Leadership, management, Marketing water, planning, sustainability, water sewer management, water supplies
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We hear the moniker about getting the most out of your employees and staff.  Business books will talk about accountability, as will politicians, but creating accountability requires a first step on the art of management.  In any organization there needs to be a vision of where the organization wants to be in 5, 10 or 20 years.  Then there needs to be  a team of managers who buy into the vision, and implement it by securing employees who can implement it.  But it does not stop there.  You need to set  expectations.  Sounds, easy, but it is one of the issues professional employees especially complain about.  Assigning work tasks and saying “get it done” is not an expectation.  That’s a command.  Commands work in the military, but not so much in private practice.  The command and control types are notoriously difficult to work with, especially in professional and/or creative environments.  Micro-managers fall into this same mode.  The creative/professionals are intelligent and are looking for freedom to solve problems, usually more effectively that they can be told.  Instead, what needs to be done is to create a set of expectations of what will be accomplished and timelines.  Let the creative types and professionals figure out how. Provide them with the resources they need.  If employees understand the expectations, and are given the ability to accomplish the goals, accomplishing them becomes an end in itself – that becomes the goal and their satisfaction.  But does it work?  Well, yes.  I have been in organizations where the stars aligned to have a small group of manager who created and bought into a vision. We set expectations and let people accomplish them.  Always faster, always less cost, and always effectively.  A degree of recognition follows them. The group was easy to spot because they were accomplishing things (I should note that this does come with the price of jealousy among those who prefer to sit on the sidelines and can create some degree of subterfuge there which requires a strong leader to deal with that problem).  Students work the same way – set expectations of the delivery and allow them to develop the methods to solve the problem.  It is easy to see who the good engineers are, and who perhaps will be less successful.

Even easier are city and county managers, general managers and the like.  New officials come into office and six month later they are complaining that the staff and manager don’t communicate with them.  First response is to give them more information, which compounds the problem.  Still not communicating.  Every manager has one of these stories. The problem is that the new folks never revised the expectations from the past.  As a result everyone operates on the last set of expectations, until new ones are established.  If that never happens, well, the conflict escalates.  Someone has to take the leadership role, which creates a quandary with governing boards like the ones utilities commonly deal with because these folks are generally not educated in the intricacies of the operation of the utility, and rarely have any management experience.  They simply do not understand how to set reasonable expectations, to identify what is important to them and what is not, how to delegate, etc.  Until a sitdown discussion of expectations of both manager and the board is developed, the potential for friction will exist.  Some managers are good at recognizing and making adaptation, but most governing bodies are not.  This is why it is important to develop education programs that will encourage the community, which often has better connections to the governing members than staff.  So as utilities, our infrastructure is vital to the long-term development of our communities and to the public health and productivity of our residents.  So how do we make governing bodies understand the need to invest in utility infrastructure when emergencies are not happening?  Realizing we are all busy, we need to keep in mind that outreach is a key to creating that coalition of leadership in the community to advance the utility agenda.  Again a leadership issue and the need to engage the community, something we all too often forget to do.

Cutting costs while keeping the stormwater out

November 3, 2012
finance, funding, groundwater, infiltration, inflow to sanitary sewer, infrastructure, management, sanitary sewer, stormwater, sustainability, water sewer management
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Storms highlight the need to reduce infiltration and inflow into the collection system so as not to overwhelm the piping system causing plant damage or sewage overflows into streets, so much of the focus has been on dealing with removal of infiltration and inflow through televising the sewer system and sealing or lining sections where leaks are noted.  However, many miles of videotape show virtually nothing, so significant money is spent to find “nothing.”  Part of this is because “infiltration” and “inflow” are not the same, and storm events do not highlight infiltration nearly as much inflow.

The manholes and clean-outs are required for access and removal of material that may build up in the piping system and for changes in direction of the pipe.  Manholes are traditionally pre-cast concrete or brick, with brick being the method of choice until the 1960s.  Brick manholes suffer from the same problems as vitrified clay sewer lines – the grout is not waterproof so the grout can leak significant amounts of groundwater.  The manhole cover may not seal perfectly, becoming another source of infiltration.  Pre-cast concrete manholes resolve part this problem, but concrete is not impervious either.  While elastomeric or bituminous seals are placed between successive manhole rings, the concrete is still exposed.  Many utilities will require the exterior of the manholes to have a coal-tar or epoxy covering the exterior which helps to keep water out.

Inflow results form a direct connection between the sewer system and the surface.  The removal or accidental breaking of a cleanout, unsealed manhole covers, laterals on private property, connected gutters or storm ponds, damaged chimneys from paving roads, or cracking of the pipe may be a significant source of inflow to the system.  All are potential sources of inflow which can be identified easily during storm events.  The peaking that correlates with the rainfall is inflow, not infiltration since infiltration is part of the base flow that creeps upward with time.  When operators see peaks, this is not indicative of infiltration which is groundwater.  Think inflow.   Inflow causes peaks in run time on lift station pumps, and create potential overflows at the plant.  The good news is that simple, low tech methods can be used to detect inflow, which should be the precursor to any infiltration investigation.

The following outlines a basic program for inflow detection and correction for any utility system.  The order is important, and pursuing all steps will resolve the majority of issues.  The first step is inspection of all sanitary sewer manholes for damage, leakage or other problems, which while seeming obvious, usually surprises.  The manhole inspection should include documentation of condition, GPS location, and some form of numbering if not currently available.  Most manholes have limited condition issues, but where the bench or walls are in poor conditions, that should be repaired with an impregnating resin.

Next is repair/sealing of chimneys in all manholes to reduce inflow from the street during flooding events.  The chimney includes the ring, cement extensions, lift rings, brick or cement used to raise the manhole ring.  Manhole covers are often disturbed during paving or as a result of traffic.  The crack between the ring and cover can leak a lot of water.  The intent of the chimney seal is to prevent inflow from the area beneath the rim of the manhole, but above the cone.

The next step is to put dishes into the manholes.  One might think that only manholes in low lying areas get water into them, but surprisingly every manhole dish that is properly installed has water in it.  Hence assume that all manholes leak water between the rim and cover.  Most collection system workers are familiar with dishes at the bottom of the manhole where they are of limited use.  This is because the dish deforms when filled with water or is knocked in when the cover is flipped.  The solution is a deeper dish with reinforcing ribs.  No ribs, don’t use it.  A gasket is required.

Once the manholes are sealed, smoke testing can identify obvious surface connections.  The normal notifications, inspection and documentation will identify broken or missing cleanout caps, surface breaks on public and private property, connection of gutters to the sewer system, and stormwater connections.  All should be documented via photograph, by associated address and public or private location. The public openings at cleanouts can be corrected immediately.  However, if the cleanout is broken, it may indicate mower or vehicle damage, that can occur again.  If missing, the resident may be using the cleanout to drain the yard.  In either case the collection system needs to be protected.  USSI (http://www.elastaseal.com/about_us.html), located in Venice, FL developed a solution, called the LDL plug to correct those commonly broken or commonly opened cleanouts to reduce inflow.

Notices should then be sent to property owners with documentation of the inflow connections to their property.  This is sometimes the most difficult part of the program due to political will, but it is necessary.  This finishes the inflow correction portion of the project, but one more step will help focus efforts for the second “i”.

The final step is a low flow investigation, which is intended to focus on the infiltration piece of the problem.  Such an event will take several days and must be planned to determine priority manhole to start with and sequencing.

Based on a projected plan and route:

  • Open the manholes
  • Inspecting them for flow
  • Determining if flow is significant.  If investigation of basin will end and new basin will be started.  If flow exists, open consecutive manholes upstream to determine where flow is derived from.  Generally a 2 inch wide bead of water is a limit of “significant” infiltration.

Documentation of all problems and corrections in a report to utility that identifies problem, location and recommended repair.  Identification of sewer system leaks, including those on private property (via location of smoke on private property).

The example in Dania Beach, FL was that the last step indicated that only 15% of the sewer system needed to be televised.  This saved the City almost $1.2 million.  Their total costs is under $1.4 million for all parts of the project, spread over several years and contracts.  Overall the hope is that the inflow and infiltration programs together will save $400,000/yr, a five year payback.  But the key is to insure you get the inflow as well as the infiltration… Otherwise storms will continue to overwhelm plants, creating public health concerns and ruining your reuse program.