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water sewer management

It’s Been a Month!!

December 17, 2015
American Water Works Association, California, Climate, communciations, economy, ecosystem, engineering, Environment, Fall, florida, graduation, groundwater, Holistic Water Planning, infrastructure, local government, politics, Risk Management, sea level rise, service, SRF, Student Achievement, Students, terrorism, utilities, water sewer management, What could possibly go wrong?, WITAF
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My apologies for being offline for a month. It has been very busy.  I got back from Utah, and it was tests, reports, etc.  Then Thanksgiving – we went to Disney for my stepdaughter.  Then the Florida Section AWWA conference, then student final design presentations with President Kelly present for some of it, then finals, then a trip to the west coast, then posting grades, then it’s now.  Crazy.  And my kitchen is being worked on -see the photos of what is left of it.   Not much, and Christmas is how far away.  Yikes.  At least the wrapping and chopping are 99% done!

In the meantime a lot has happened.  Congress cut SRF funding, but passed the transportation bill.  They passed WITAF, but provided minimal funding.  The debates roll on.  A recent South Park episode is all about illegal immigrants from Canada escaping, then there is a wall built, by the Canadian so t hose who left don’t come back, and then we find out who the new president in Canada looks like… well you just have to watch and be scared.  Very scared.  If you do not follow South Park, well you are just missing it.

Russia had a plane brought down by an apparent ISIS bomb.  The Egyptians deny it.  Too much arguing about was it or wasn’t it to garner much of an outcry.  Best wishes to the friends and families of the victims.  Then France had their 911 event sponsored by ISIS, and most of the world is sending their best wishes to the victims, the victims families and the French population.  In such events, most of the world comes together.  Everybody was French for a day.  Best wishes to the friends and families of the victims. Then the couple in California.  Best wishes to the friends and families of the victims. But it raises a very disconcerting question, and one fraught with far too many xenophobic concerns as ISIS and their allies like the Taliban, Boko Hiram and others continue to reign terror and violence on the rest of the world.  The xenophobic response will be – whom do we trust in the Muslim world?  If you don’t believe in blowback, listen to the debates.  One commentator points out the xenophobia may actually help ISIS (Donald are you listening?).  LOL – of course not.  But utilities should expect another round of security costs and analyses in the future.

The Florida Section conference was great.  The venue was great (Renaissance at Sea World).  The program garnered a lot of buzz and comments.  Who knew at a water conference that potable reuse would be the big topic?  I also won two awards at the Florida Section conference – a best paper award and the Alan B. Roberts award for Outstanding Service by a member.  Wow!!  I am humbled.  A lot of great utility folks were present at the FSAWW conference.  It is a great event for the water industry (that includes wastewater, storm water etc.).  The technical program is designed to be good, timely and useful to those that attend.  While all utilities struggle with costs, please make time to send your folks if possible.  The training cost is reasonable for what you get and who you meet.

My students did well on tests and presentations.  President Kelly was impressed with their presentations and projects at the Dean’s Design Showcase.  We have never had the Dean at student presentations, let alone the President of the University.  My sincere appreciation to him, his staff and those that made it happen.  The students were pleased and impressed.  And they are getting jobs easily.  You can tell people are building and working on infrastructure as most of the graduates get jobs right away, if they don’t have them already.

Grading and the west coast went well.  The Fort Myers News Press-Sunday Headline was “Where has all the water gone” – a discussion on how groundwater is depleting across the country including south Florida which gets 60 inches of rain.  But the article points out what that climate, rainfall, recharge and other factors have been altered in south Florida as a result of development.  We really do make an impact and it is affecting utilities today. This follows another article last week on depleted groundwater around the world.  I have lots of photos in my travels from the air – groundwater use is highest where surface waters are limited – i.e. dry areas.  Except in dry areas, the groundwater does not recharge.  I had a student do a project for his master’s degree that estimated that groundwater depletion is a measureable percentage of sea level rise.  More to come on that.

Next the kitchen.  I will post photos in another blog.

As I said, a busy month.

WQTC in Salt Lake City

November 17, 2015
American Water Works Association, Holistic Water Planning, surface waters, Uncategorized, water sewer management
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I ended up in the water industry after college. It was kinda by default since jobs were scarce and I just got lucky. But pipes and treatment fascinated me and even after I became a town manager. There I learned everyone wanted my water and sewer skills. So when I moved to Florida, I moved over to water and sewer full-time and continue to do so today.

I joined AWWA in 1986 and came to my first ACE in 1994. I haven’t missed one since. Along the way I have met a lot of great people, written papers, published books and developed training for AWWA and its members. I have chaired several AWWA conferences and technical programs. I am on the committee for WQTC – hence why I am here (and given two papers). The conference combines research, regulations and management into a package. WQTC is the opportunity to and learn about the research in the industry form the researchers and academics performing the work which is the reason to be here.

But I was probably always destined for water. I was born an Aquarius (water bearer). When I was a kid I really looked forward to hanging out along the AuSable River or my favorite place to fish, Kyle Lake. I never really thought about whether it was the water or the fishing that enthused me the both (they both did). Fond memories years later. Then I moved to eastern North Carolina and ended up spending a lot of time on the beach, again, not really asking whether it was fishing or the waves. When I moved to Naples, FL, I was re-energized by the waves, and it was a lot less about fishing as I rarely fished. Same as when I started hiking, I always seem to hike to water. Water falls, calm lakes, roaring oceans, streams, rivers – it doesn’t matter. It’s all water. In my industry – it’s all one water!

#mywaterstory

Is this a good idea?

September 5, 2015
Leadership, Water Funding, water sewer management, water supplies
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In the vein of more growth is always better mentality, the following struck me as I was in Colorado last month.  Front Range politics are a big deal in Colorado because virtually all the people in the state live within 60 miles of Denver.  The following table outlines the populations of the Front Range counties and their growth trends over the past three years.  Big growth.  So the local politicians are happy.  Growth is good.

The Front Range Urban Corridor
County 2012 Estimate 2010 Census Change
Larimer County 310,487 299,630 +3.62%
Weld County 263,691 252,825 +4.30%
Boulder County 305,318 294,567 +3.65%
City and County of Denver 634,265 600,158 +5.68%
Arapahoe County 595,546 572,003 +4.12%
Jefferson County 545,358 534,543 +2.02%
Adams County 459,598 441,603 +4.07%
Douglas County 298,215 285,465 +4.47%
City and County of Broomfield 58,298 55,889 +4.31%
Elbert County 23,383 23,086 +1.29%
Park County 16,029 16,206 −1.09%
Clear Creek County 9,026 9,088 −0.68%
Gilpin County 5,491 5,441 +0.92%
El Paso County 644,964 622,263 +3.65%
Teller County 23,389 23,350 +0.17%

Then I read an article by Bruce Finley of the The Denver Post entitled “Colorado shies from big fix as proliferating people seek more water.’  The concept is to continue the state’s tradition of moving water from the wetter west side of the Rockies to the drier east side.  The current fix is to build a huge reservoir by Dinosaur National Monument (in the middle of the west Colorado desert), then divert 97 billion gallons a year from the Yampa River through a 250-mile pipeline across the Continental Divide to the Front Range to defray Colorado’s projected 2050 water shortfall of 163 billion gallons.  The Yampa Pumpback would be the 31st cross divide diversion Colorado has built since the 1930s.

colorado water

Now the plan has hit a snag, whereby the EIS for the project indicates to meet needs, it would be the Front Range that bears the risks of not enough water in dry years as a part of negotiations for water entitlements under the interstate treaty that divvies the Colorado River.  Once that is resolved, the project would cost billions and take years to construct.  Ok, the Front Range is water limited. And we all know it.  The problem is people like Northern Water manager Eric Wilkinson who the article quotes as saying. “With the number of people coming here, we’re going to have to look at all alternatives. Conservation isn’t the silver bullet; it’s also going to take additional infrastructure…. These people need water, and they’re willing to pay for that water.”  In other words, we need more growth!  So in the meantime, development competes with agriculture or replaces agriculture on the semi-arid high plains.  The article suggests that cities and industries seeking more water would absorb hundreds of thousands of acres of agricultural land water rights if unable to divert more across mountains, something the governor is a little concerned about.  They would just buy them out.  So less agriculture when we probably will need that land later.

So in that vein, I noted the following at the airport.  One is a nice field of grain. Golden in the summer sun.  Across the street, the golden field is being converted to 300 houses.  You can see the pipe and the equipment.  And my question is – Is this really a good idea?

photo15b

photo15e

Don’t Put this in the sewer!

August 28, 2015
funding, inflow to sanitary sewer, sanitary sewer, water sewer management
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The other thing we learned was that we need to be far more careful about what goes in the sewer system.  Paper towels, baby wipes and hand towels do not deteriorate in the sewers.  No matter what manufacturers claim, you find them everywhere and they look just like they did when flushed.  They clog lift station pumps and pipelines.  Do not put these down the toilet for any reason?  Likewise there are no feminine hygiene products that should be flushed, ever!  Again regardless what the manufacturers claim, you can find there ubiquitously in the sewer system and they look, well just like they did when flushed.  No biodegradation.  I have included some figures.  They show up in pump clogging and at plants as well.  They are not biodegradable.  Again do not put these down the toilet!  Put all these products in the trashcan in the bathroom.

Worse, do not put grease down the drain.  One photo is a greaseball in a manhole.  It fills the whole manhole up!  Of course the feminine hygiene products, towels, wipes, etc. plus grease make almost impenetrable obstacles that block the sewer system.  So we need to remove the inflow and we need to keep grease and the reset of these products out to reduce the costs of operating the wastewater utility.  We all contribute, and we all can help.  We want systems to operate properly and dependably, so let’s do our part.

photo 3 photo 1 GREASE

Inflow success stories

August 24, 2015
inflow to sanitary sewer, Leadership, sanitary sewer, Water Funding, water sewer management
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Wastewater utilities and water utilities are intrinsically linked.  Wastewater utilities often discharge to water bodies that are water supplies for downstream water plants.  In other cases, wastewater plants provide additional supply options to reduce water demands in the form of reclaimed water.  However as a wastewater utility, costs are often associated with power- pumping and aeration, which can be 30% or more of the utility’s costs in the worst cases.  However, substantial savings in operations can be achieved by reducing the amount of wastewater that must be pumped and treated and in some cases that reduction also is associated with water quality benefits for the reuse of reclaimed water.  Utilities have long dealt with the infiltration and inflow (I and I) issues in their system by televising their pipes and identifying leak points, but this primarily addresses only the infiltration part of I and I.  Inflow and infiltration are not the same thing – they are very different and must be addressed differently.  Inflow causes hydraulic issues during rain events – like sanitary sewer overflows and basement flooding.  Both subject the utility liability from lawsuits and/or regulatory fines.  Inflow is the risk issue that must be addressed to protect the utility.  A cost effective solution to inflow involves low tech, low cost methods can identify the problems that can corrected easily.  Removing the inflow portion from I and I, often leads to a more focused plan for infiltration correction.  What are those tools?  Smoke testing, cleanout repairs, sealing manholes and manhole dishes.  But each of these needs to be carefully selected.  Because these solutions, pipe that leak can be seen through another low tech solution – a midnight monitoring event.  Recent efforts here in south Florida indicate that only 15-20% of the pipes in a sewer system need to be televised and within those, about half the leaky pipes are actually not leaking – they are broke laterals.  Laterals are one of the most ignored parts of the sewer system – often they are small pipes and much of the piping is on private property so the utility does not address those pipes.  And in many utilities these are the pipes in the worst condition.

Other things that our efforts have shown are that new pipe can leak, just like old pipe, clay is not the only pipe that leaks and that the inflow solutions can be very helpful.  Figures 1-4  show how the solutions affected three lift stations and one community.  The graphs show rainfall vs flow.  Before these efforts, the flows increased with rainfall events.  After, they did not.  Hence this utility was able to resolve its risk for overflows at a cost of under $500/manhole.  That is relatively inexpensive.

LS 52 db LS 54 LS 53

Gulf Power Grids

August 15, 2015
energy, Leadership, politics, water sewer management
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As storm season arrives, I found an interesting figure which comes from Power magazine and shows all the power stations that are at risk from storms.  That’s a lot of power.  The question is how do we address this?  Water and wastewater utilities are actively looking for means to reduce power costs.  Pumping water can account for 80-90 percent of total power consumption, especially with high service pumps.

Water and wastewater power plants tend to have backup power.  Or at least we hope they do.  In Florida we created FLAWarn after the hurricanes in 2005.  The concept was to put utilities together to allow them to share generators and other assets in case of emergency.  Many utilities here have generators at pump stations, tanks and on trailers.  The goal is to insure service can be provided regardless of the damage.  And that did come in handy after Wilma in 2006.  FLAWarn serves as a model for other states.

There are also renewable power which some utilities have invested in.  Renewable power on plant sites is a means to address the potential grid interruptions.  This solution, however, may not be embraced by power utilities due to the potential revenue reduction. As the water facility takes on on-site generation, the utility load profile may shift significantly placing them in under a different rate structure which may greatly reduce the benefit to the utility.  One problem.

Also there are some at work to derail green power solutions, trying to reduce the attractiveness and subsidies on renewable power.  Interesting that many power providers are not in that group because all power in the US is subsidized – oil, gas and renewables.  The oil and gas sector is much larger and while many renewable power solutions are used by large power entities.   In some states, the states have taken action to encourage these investments because of the potential benefits to the population.  Local entities have gotten involved also.  It just makes sense if you are in the right region and the price/risk ratio is right.  A number of water and sewer utilities have pursued this option successfully.  That will help as well during outages.

Now if we can keep the trees from being planted above the pipelines ….power systems

More Direct Potable Reuse?

August 3, 2015
Drought, engineering, Leadership, water quality, water sewer management, water supplies
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This month’s Journal for AWWA has several articles devoted to direct potable reuse (DPR).  Total Water Solutions is the moniker that AWWA has tapped lately as the organization has moved to the message that water sources cannot be separated.  California believes that 40% of its urban water use can be recycled to direct potable reuse, which can address a lot of the drought concerns for urban users (11% of California’s water use).  The technology is available to make DPR a reality.  The concerns involve insuring system reliability (i.e. redundancy in processes), and public perception of DPR.  As I noted in a prior blog, there are two cities in Texas already doing DPR.  There are several places in California doing indirect potable reuse (IPR) which basically involves injected the water into an aquifer or releasing it in an upstream reservoir.  The treatment is basically the same for both but the separation is creates a different public opinion. One that is not so different than discharging wastewater to rivers that serve as water supplies downstream.  Both IPR and DPR were unheard of as ideas outside southern California until more recently.  But in the past several years, both have seen a significant change in Texas, California and Florida.  Water-logged south Florida has looked at 5 IPR projects in the past 7 years, and has a couple reuse ASR systems.  Should drought conditions return, these projects may not be so far-out (note we are at 25% normal rainfall in southeast Florida – but water use is 10% below 2005 levels).

Engineers without Borders discussion continued.

July 30, 2015
engineering, Leadership, population growth, water sewer management, water supplies
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The most recent issue of the magazine Population Connection notes several interesting things.  First, the world’s population grows by 80 million people per year, predominantly in areas that are not “first World” countries.  In many of these places water is limited – 1.2 billion people live in these areas. By 2030, 40% of the people, especially those in these areas will be facing water deficits that will increase their risks.  Some of these deficits will be exacerbated by climate changes.  Agriculture is responsible for 70% of water use, and that number is not expected to decline as the need for agricultural products increases with time.  So clearly water use and population are related, just as carbon dioxide concentrations in the atmosphere and population appear to be related. Worse yet, the number of urban residents that do not have access to wastewater services is expected to increase by 50%.  The good news, not so much in the US, where such services are expected and available to the vast majority of people.  So the problem – most of these people live in Third World countries that lack both the economic resources and social infrastructure to deal with these problems.  This is what Engineers Without Borders is trying to address but it does raise that question – what are the social consequences of trying to help them?  Surely engineering ethics say we should help protect the public health, safety and welfare, which this work does.  But on the other side, if they develop more and add more people, does that add to the strain on limited resources in these areas which might damage the public health safety and welfare.  Which is the more critical issue?  And how do we decide? How should engineers evaluate the conflict between public health and sustainability from an ethics perspective? Just asking?

Interesting Conversations

July 27, 2015
economy, engineering, Leadership, water sewer management, water supplies
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Over the past couple weeks I have been at two conferences and had two interesting conversations.  The first one was in Anaheim at the AWWA Annual Conference and Exposition.  The subject was the organization Engineers Without Borders (EWB).  The organization has the mission to help get drinkable water to people in undeveloped parts of the world.  Nearly two billion people do not have clean drinking water which drastically impacts their health and ability to be productive and earn a living.  Many of these people live in Africa and Asia; some in central and South America as well.  The mission is a noble one – to help people.  But the guy I was talking to raised an interesting question – if we help all these people get water, they will demand more resources and if the resources are already limited, won’t creating more demands for those resources compromise our access and cost to those services?  Hence helping them actually creates competition with us for the same resources and that can compromise our goals.  Clearly not a fan of EWB, but, an interesting take on the issue..…

The second conversation was a few days later when a group of people were talking politics.  The conversation inevitably ended up on political parties and people and service organizations like Engineers Without Borders that are often viewed as being ”liberal” or “progressive” as opposed to “conservative.”  The discussion got around to this question – would conservative groups give money to progressive groups like EWB?  The answer was a resounding yes, because that would improve conditions which would make people more productive, which means more jobs, and more income to give more people access to buy more things, which creates a demand for more things, which expands the economy.  In other words, increase profits for those folks building the “things.”  Interesting twist, and you thought is was all about water….