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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.


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.


I had an interesting email exchange with a guy in north Florida who was trying to educate the Legislature on why planners are always wrong with their projections and their studies should be ignored as a result.  His specific issue was water supply, but it could have been any number of issues.  His argument was that the projections for water use made in 1976 were incorrect and in fact total water demands in the State had been basically flat over that period.  He’d be unhappy to know that Florida mimics the rest of the country.

Ok, I admit that in addition to being an engineer, I have a minor in planning and a degree in public administration.  I attempted to communicate with him about the purpose of planning, not that it helped.  Planners outline projections of what things will likely be IF not changes are made.  The reason is to prompt policy or behavioral changes prior to reaching critical tipping points.  The argument in 1976 was that Florida would run out of cheap water if current trends continued.  In the intervening years, there have been major efforts toward water conservation, low flow bathroom fixture and major changes to irrigation practices.  All of which made the water picture far better than the 1976 projection.  See the planners were not wrong – the projections indicated the problem if nothing was done, and acted in part as a catalyst for change.  This is what planners dealing with water supply needs, sea level rise and a host of other planning issues are supposed to do.  If we understand what the potential problems are, maybe we can take action to avoid tipping points.  This is not to say all projections are perfect or even correct, but the idea is to avoid reaching a point of no return.  Isn’t that what smart people should do?  Apparently not to the guy on the other end of the email.  Happy Halloween.  Er, no this was just scary because it was real!!


The most recent discussions in trade journals, on-line and within the industry is that construction starts have begun to trend upward, a good sign that the economy is moving forward.  Since 2008 when the market crashed just after the election as a result of 2005/2006 packaged loan deals (read The Big Short by Michael Lewis if you really want to understand what happened, but be prepared to be irritated that no one has yet to go to jail), the stock market has crept steadily upward.  The problem is that the returns on investments have not trickled down to the majority of Americans except in low wage jobs (no wonder people can’t pay their mortgage and the IRS collects no income taxes from so many people).  But the tide does seem to be turning according to the construction journals.  In part we can thank low interest rates, but more perhaps more importantly it seems that much of the excess housing and commercial space may be decreasing so investors and owners that are looking to a spurt in economic growth in the coming years.  We see rising house prices in hard hit areas like south Florida.  With luck that will translate to jobs (maybe even decent wage jobs), increased tax revenues for local governments, and increased water revenues form of new or redeveloped users.  While the trend may not hold everywhere, the fact that the construction industry is talking about increases in new starts in the coming year, is a clear sign of things to come.  But are we ready?  That’s the big question.

Down here where I live, the 2007-2009 period was one where utilities ere struggling to find water supplies, with many investing in expensive alternative supplies.  Then reality struck and the 2020 demands are more like 2030 or 2040 demands.  The impetus for investment went away (it did not help that the burden was on the current ratepayers).  Those who invested in the 2008-2011 period got the benefit of much lower construction costs (typically about 70% of 2007 costs), but many sat on the sidelines as a result of political demands not to increase rates on current residents, resulting in lots of deferred maintenance.  While few utilities invested on growth related infrastructure, how many invested on replacement and rehabilitation at the lower costs?  Unfortunately, catching up on the backlog did not happen for many of us, which is why ASCE’s annual report card for water and sewer infrastructure continues to show very low grades (D- in 2009 for water and wastewater, a grade that has not improved).  As a result the legacy of the 2008 recession is that an opportunity to improve the condition of our infrastructure while creating local jobs was lost.  Now we will play catch up at higher prices, and higher interest rates (0.25% since June).

So where is the failure?  We complain about leadership at the federal level, but leadership starts at home (to use a cliché).  Local officials were not persuaded by utility personnel to invest in their future.  Aren’t these the same officials that often move to state and then the federal level?  Our failure to persuade them is an indication that our marketing approach to built consensus is not working.  Our ability to coalesce the community to improve itself is lacking, which readily translate to elected officials.  We can cast the blame upon them, but it starts much earlier than the time they make decisions.  In difficult economic times, we need a better approach to selling our product and the need to maintain the systems that deliver our product.  We need our customer to demand the improvements to protect their health.  People just don’t understand the link.  Water is there, so all is good.  When I flush it goes away.  No problem.  But what separates the US form the Third World is our infrastructure, especially our water and power infrastructure.  Maintaining our place in the world requires that we continuously upgrade and maintain this infrastructure.  That means planning ahead, building reserves, and taking advantage of economic conditions favorable to getting the most for our money.  How many of us missed this last opportunity?  We should be looking in the mirror and asking why…

 

PS  Today would be my Dad’s 90th.  We miss you!!


October is the month that brings us the astronomical tides, or locally to the coasts, the annual high, high tide.  The position of the moon relative the Earth creates a slight alteration in the gravitational pull of the moon on the oceans so high tide, is, well high!  If you lived in a coastal areas, what did you see?  Or experience?  Southeast Florida was rife with email chatter and photographs of flooded streets, yards, and canals.  The City of Fort Lauderdale sent notices to residents warning them about the tides.  We had no rain, just the tide coming in.  These are low lying areas that 20 years ago did not flood except during storms.  This is just a phenomenon that has been monitored in coastal areas over the past 5-10 years, depending on the complaints that have come into local officials.

One of the more interesting complaints I received in my career was in Hollywood Florida where a resident complained about the “fish in the street.”  Sure enough, the storm drain in front of his house was connected directly to the Intracoastal waterway and the October tides had pushed the saltwater up through the catch basin into the street.  Now these weren’t snook or redfish, they were little fish escaping the snook and redfish, about 3-5 inches long.  Pretty funny stuff if you think about it.  Realizing the problem, I called him 3 hours later and asked if the problem had been solved.  He said told me I was a genius to fix that so fast.  My boss told me to take advantage of luck and drop the explanation, but to design a solution (which we did).  My boss was right, but the call made me more cognizant of the issue.

15 years later, I have a student developing models of what happens during the annual high and average tides, especially with respect to the potential for flooding in low lying areas where groundwater is just below the surface.  His work is impressive.  A lot more land, especially inland, may flood as a result of the annual tides, which are a precursor to the long term trend of rising seas.  See the groundwater has a slight upward gradient as you move inland.  As a result, you cannot use the tide levels to predict inland flooding, you need to add the tides on top of historical groundwater levels.  Of course the wet season is the summer in Florida, so the October tides come just at the time groundwater levels are highest.  But at least we can determine where the stormwater pumping improvements need to go.

Determining where stormwater pumping is needed is only part of the problem.  As sea levels rise, more stormwater management will be needed and a place to put the water will become a problem.  Discharging nutrient laden stormwater to tide is not a good answer when you have fragile reefs offshore.  NOAA’s Florida Area Coastal Environment  (FACE) Initiative outline this (see intensives study – http://www.aoml.noaa.gov/themes/CoastalRegional/projects/FACE/Publications.htm).  Instead, perhaps at some point we may develop infiltration systems to capture this high water table “problem” and convert it to water supplies, solving two issues for southeast Florida.  Might be 2030, but we probably should be doing some planning….

 


In a prior blog, I raised the question about marketing your water to your community.  The issue resulted from a comment that public dollars should not be spent on advertising.  There were several comments about this and we perhaps need to explore that option further.  One question raised was “how do we engage our community?”  There are a variety of ways to engage the community, but most utilities pursue only superficial, and inexpensive solutions, if pursued at all.  The typical solutions include speaker’s bureaus, mailers, flyers, notes on water bills, the consumer confidence report, press releases, presentations at commission meetings and water conservation efforts.  But how well do these work?  Certainly every utility should pursue many if not all of these options.  Getting positive information out to the community is needed, but does it change the perception of the community toward the utility?  Hard to say, but if that is the goal, you may be surprised how limited the impact of these efforts may be.  For one thing, most mailers, etc are viewed as junk mail so are not read by the customers.  Likewise most people do not pay attention to commission meetings, or read the paper (assuming the paper publishes the press release).  So many of these well intended, and time consuming efforts may be create limited engagement.  More proactive and maybe time consuming efforts are often needed to create an impact.

So what might work better?  If trying to change perception of the utility, more hands-on engagement may be needed.  It may mean reaching targeted audiences that can change current or long-term perceptions.  This can occur in a number of ways.  Here are a few:

  • School competitions for water conservation, hydrant painting, model water tanks – the concept here is to provide fun to elementary and middle school kids while encouraging them to learn about a given topic.  Normally involves teachers and parents, which enhances the message and spreads the “word.”  There are state and national competitions that students can participate in as well.  Utility management support is required, as and some resources and some devotion of time from staff to coordinate efforts among students and teachers.  But it puts the utility in front of an impressionable audience and provides a learning opportunity very different from the normal classroom.  How would that not be memorable?
  • Middle school programs with utility staff – the concept here is to encourage utility staff to communicate directly with middle school kids about what they do.  The key is to get younger kids interested in pursuing jobs in the field.  One of the ongoing issues in the utility industry is “graying,” and the potential for almost 50% of the workforce to retire in the near future.  Getting students to change their careers in college is too late.  Often high school is as well.  Middle school kids have rarely given much thought to their careers.  What better way to recruit that to put the utility in front of kids and get them thinking about going into the water field.?
  • Tours of facilities for school kids – most students learn visually, so tours of the facility are useful to create interest and enhance learning. Security is an issue, but they are kids.  It is always useful to know what goes on with water and wastewater. And it’s normally a positive, out of the classroom experience.  What kid doesn’t like a field trip?
  • Summer internships for high school students – this is another effort to engage and educate students, while perhaps setting the stage for a future employee who understands what win needed to do the work.  Teachers and parents are required to be part of the process – otherwise who recommends the students ad how do they get to work?  It helps if this is coupled with earlier introductions to the utility, so kids have become interested in the career prior to the job opportunities.  Think about the kid who learns about and tours the utility in middle school, knowing internships might be available in a couple years.
  • Partner with local universities on research issues – The focus is universities, not trade schools or community colleges, because universities do research and this capacity is often underutilized in the business work.  In part this is because their mission is misunderstood – they teach students to think as opposed to technical skills, which means things might take a little longer.  But universities have lots of technical resources, literature and skills that can be useful to utility systems.  Often the cost is less than consultants, and the access to data and knowledge is usually beyond that of consultants as well.  The utility needs to find the right person to connect with for small projects as some university folks avoid small projects, but many engineering professors welcome the opportunities.  Also many universities are public entities, which means bid laws may not apply for public agencies.  That makes it easier….
  • Sponsoring research projects for graduate students – graduate students need projects to complete their thesis.  They need real data and utility projects and research are generally beneficial.  And they need jobs so research is like an extended interview.  Professors are looking for research to collaborate on.  Utilities often need testing of pilot projects before design is initiated or completed.  As a result, utility sponsored research is a win-win for everyone.
  • Offering paid internships for undergraduate students – college students need money to pay tuition and experience to get a job.  The utility can engage and educate students, while perhaps setting the stage for a future employee if they do the job well.  Internships are extended interviews to gauge student skills.  And universities can help recommend good students.  Another win-win.
  • College scholarships – scholarships recognize good students, while creating the potential to attract future talent.  AWWA has found that most students who receive scholarships in from the water industry, stay in the field.
  • Co-hosting conferences – many conferences are looking for sponsors, money and locations.  Local conferences normally get some press, which helps the water profession.  Another win-win.
  • Hosting training programs- like conference, training is something all engineers, finance people, and operations and field personnel need.  Like conferences, many training programs are looking for sponsors, money and locations.
  • Participation in activities like Habitat for Humanity – utilities have tools and skilled labor.  They can help with community based activities.  Management needs to be engaged and show leadership for such projects to be successful, but there can be no losers in activities like this.
  • Awards – Apply for them.  They are noteworthy, and publishable!
  • Newspaper advertisements about events or accolades – some elected officials are opposed to self-laudatory commentary or marketing.  But in the competitive environment we operate in, we need to maximize revenue opportunities.

There are more, how many utilities actually engage in these efforts.  Money is often used as a reason not to, but if long-term engagement is what is desired, perhaps spending limited dollars to pursued these options could present a positive benefit:cost ratio to the utility.  That would make it worthwhile.


A comment I heard recently from an elected official was that it was inappropriate to use public dollars for their water agency to market their water product.  Interesting, and it suggests a major barrier to the development of local utility systems.  The cell phone companies, cable television, bottled water companies and security agencies all market constantly to our customers.  Virtually all of them charge more for their service than we do for water and wastewater.  The costs for all have increased faster than water and sewer.  But try surviving in the desert with only cable tv and no water.

Utilities compete with every other vendor for the same dollars.  They want our customers to value their products more.  They want our customers to divert dollars to them, so they need to increase the value of their products in the minds of our customers.  This is what marketing is all about.  If you cannot show the value of your product, the value diminishes in comparison to other products.  So while the needs for water and sewer systems increase, we see more of our customers’ dollars go elsewhere and the accompanying  demands to control our rates.

Water and wastewater systems must market their product.  Clean healthy water is available to virtually everyone.  People expect their faucet will turn on and provide good quality water, and that the toilet will flush.  They take it for granted, yet much of the world does not enjoy the same quality of consistency in service.  Water service is a commodity, and comes with a cost.

We say we want to operate the utility like a business, and many systems are run this way.  Most charge based on usage (or should).  But we fail to pursue one of the basic tenets of running a business:  marketing our product.  The annual CCR is not a marketing tool.  Water bills can convey messages, but they do not really function as marketing either.  Water conservation programs can help, but here the message is use less, not the benefit of the product.  We simply do not market water.  It is why the bottle water industry continues to grow, despite the fact that public water systems offer water at least as safe and healthy as bottled water, subject to more regulatory oversight, at a fraction of the cost.

So given that utilities, the majority of which are owned by local governments, are operated like a business, why shouldn’t we spend money on marketing the benefits of clean, safe water?  Why not market the benefits of 24/7 service?  Why not highlight the efforts of dedicated employees that ensure the system operates 24/7?  Why not raise consciousness of the water commodity to increase its value in the public’s eye?  The only reason not to market is the benefit competing services.  That does not benefit the public good, nor support the need to recover the costs of service and repair and replacement needs of the system.

Creating a marketing plan, or branding program for your utility is a major undertaking.  DC Water spent year re-branding their system to raise consciousness.  Creating marketing programs to engender success requires multi-media outlets, consistent messages, and vision.  It requires that employees and elected officials be on the same page with their customers.  We need to understand customer expectations of the service to raise value in their minds.  If marketing can sell pet rocks, we can market the value of water.  It is in our best interests to do so.


Water management is a fundamental need for the development of civilizations. Always has been.  If you have any question about this, ask yourself what differentiates the developed world from the undeveloped.  Water supply, sewage management and flood control rank 1-3 among the differences.  Safe drinking water and good sanitation go back beyond the Romans, and is a necessity to insure that the populace, and those performing work are productive as opposed to sick all the time.  At present there are agencies that operate to manage water supplies and drainage, and a few that do both.  Mostly these are regional agencies, which belies the need for local decision making to respond to local conditions.

An example – in 2007/2008 the State of Florida was in the midst of “sever drought.”  The water management agencies spent considerable time and political capital working on water conservation strategies, limiting utility withdrawals, cutting permit allocations and demanding conversions to alternative supplies in the future.  The southern half of the state was hard hit.  Utility customers cut their demands significantly.  Unfortunately the customers’ reward was surcharges to make up lost revenues to overcome large operating shortfalls and potential defaults on borrowing documents.  The short-term implementation was designed regionally, but had significant local consequences that were not considered.

But more interesting was the actual “drought” conditions.  It seems that the hard hit areas were in the central part of the state, not the southeastern coast.   The central part of the state, including the Everglades had received about 60% of the average rainfall, but along the coast, the two year shortage averaged less than 10%, and most residents realized that their rainfall accumulations were not as severe as inland.  Since most of the southeast coast’s water supplies were local, not based on the central part, the local question rose, “why were the water conservation measures required of these utilities and residents? and  Why was this not a locally driven issue?”

The case highlights the fact that while most water resource planning efforts are regional, the impacts occur locally, and often local impacts are not fully considered.   Credibility of the utilities is critical for emergencies or difficult situations.  During this condition, a survey of coastal utility customers found that the customers were better informed on rainfall totals than the regional information provided, which undercut the credibility the local utilities were trying to build with their customers, which impacts future needs for cooperation at the local level.  Something about crying wolf…


 

I recently spent time in Denali National Park and surrounding area.  60 in the day, 45 at night, and this time of year, rain.  Lots of rain.  Denali creates its own weather, so precipitation and clouds are common for much of the year.  But it was not all the water in the Denali area that interested me as much as some local discussions about methane release from the permafrost.  I was told that many of the native populations rely on storage below ground in the permafrost to freeze winter provisions.  But a curious thing has occurred in recent years – some of the provisions spoiled.  It seems the permafrost relied upon for generations as a natural freezer is no longer permanent in some areas and the soil, frozen for generations, is now suddenly soggy.  Once unfrozen, the soil appears to release copious amounts of methane that has been trapped for years (no smoking on the tunda!).  The issue is further complicated by the fact that some of the methane could potentially get into surface water supplies and without power, and with limited funds, the treatment becomes far more difficult.


Faced with continuing growth and re-development, an aging lime softening plant, and regulatory issues with disinfection by-products, the City of Dania Beach, FL pursued the construction of a new 2.0 mgd nanofiltration process to complement the City’s existing 3.0 mgd conventional lime softening water treatment plant. Efforts to develop a plant that would improve water quality, meet long term needs and raise community awareness involved CDM Smith engineering and construction teams, the City and FloridaAtlanticUniversity.  This paper presents the innovative membrane treatment plant design that was developed to maximize system recovery while providing a high degree of operating flexibility.  This design includes a two stage nanofiltration unit followed by a convertible third and fourth stage reverse osmosis unit to provide the City with the flexibility to meet their concentrate discharge limits when operating at recoveries up to 95 percent by operating in a four stage configuration.  Operating at this higher recovery was tested by FloridaAtlanticUniversity faculty and students, and preliminary design concepts were gained from student design projects, including meeting LEED certification goals.  This plant secured enough credits  to become the first LEED Gold certified water plant in the world.

So what does this mean to a community?  Is this work pursuing?  Why is this type of certification useful for local governments?  In  many cases it sets a public policy example.  It may cut long-term costs (something many utilities do not focus on), and it may improve sustainabilitiy?  What are your thoughts?  Read more in an upcoming JAWWA article.