The T&H Blog Archives - Page 25 of 32

What Municipal Water Systems Need to Know to Increase Efficiency

A common problem facing municipal water systems today is the need to maintain safe water supplies in the midst of increasing demand, limited supply, crumbling infrastructure, decreasing budgets, dwindling governmental funding, and more stringent regulations. Never before have municipal suppliers been faced with such a daunting task, and utilities are scrambling to find ways to make ends meet. And while there are technologies today that are more efficient than the decades-old systems still in use at many facilities, most utilities simply do not have the resources to upgrade in light of limited local, state, and federal funding and budgetary constraints.

Fortunately, there are many steps that municipal water systems can take to increase efficiency without having to upgrade entire facilities and piping systems. Implementing a few comparatively inexpensive initiatives can save utilities significant, much-needed funds that can be used for future upgrades required for regulatory compliance.

Business Practice Evaluations

water_treatment_facility_interior — North Chelmsford, MA water treatment plant interior

Very often, operational procedures of municipal water systems are overshadowed by the need to provide safe, clean drinking water to the public, and understandably so — the dedication that water utilities show to their customers is commendable. However, the fact remains that operational procedures typically have the potential for drastic improvement, resulting in reduced operational expenses and smoother utility management.

One way to address operational inefficiencies is with a Business Practice Evaluation (BPE), which assesses the health of a utility’s work practices by implementing a framework for a structured approach to managing, operating, and maintaining in a more business-like manner. In other words, approaching a municipal water supply as a for-profit business rather than as a public supplier results in better operational and managerial procedures, and an improved bottom line.

water_storage_tank — Water storage tank in Meriden, CT

The overall goal of the assessment process is more efficient and effective work practices, and the assessment includes documentation of current business practices, identification of opportunities for improvement, conducting interviews including a diagonal slice of the organization, and observation of work practices in the field.

This assessment provides a birds-eye view of the utility along with objective recommendations to improve system performance. As no two utilities are alike, the structured approach is fully customized and includes all functions of the utility — from administration and technical to operations and maintenance. The result is an organized, systematic plan and timeline to optimize the overall utility by implementing specific steps including developing rating criteria to determine level of performance of work practices; conducting kick-off, consensus, and findings workshops; reviewing utility documents and documentation of work practices; conducting interviews with employees; and observing field operations of current work practices.

Organizations that have conducted a BPE significantly improve the operational efficiency of their utility, and the evaluation typically pays for itself in well under a year.

Non-Revenue Water and Water Audits

Besides improving operational efficiency, utilities of today need to find ways to reduce non-revenue water. Non-revenue water is water that has been pumped but is lost before it ever reaches the customer, either through real — or physical — losses such as leaks, or through apparent losses such as theft or meter inaccuracy. Globally, water utilities lose 34% of their supply to non-revenue water, and in the United States, that number is about 20%, with 75% of that loss being easily recoverable. Because non-revenue water is both detrimental to the financial health of a utility as well as our nation’s limited water resources, the AWWA recommends that utilities conduct annual water audits using M36: Water Audits and Loss Control methodology to accurately account for real and apparent losses.

Tata & Howard Vice President Steve Rupar, P.E., served as co-chair of the South Central Connecticut Regional Water Authority (RWA) Non-Revenue Water Goal Team, which completed the first water audit of the RWA system based on the AWWA M36 third edition methodology in 2010. Recently, Mr. Rupar was part of the AWWA Water Loss Control Committee and in charge of writing two new chapters on apparent loss control for the 4th edition update to AWWA M36.

A water audit can help water systems identify the causes and true costs of water loss, and develop strategies to reduce water loss and recapture lost revenue. In the northeast, drinking water infrastructure is typically several decades old, sometimes over a century, and deteriorating distribution systems can be a significant source of water loss through leakage. In addition, policies and procedures that lead to inaccurate accounting of water use along with customer metering inaccuracies also contribute to NRW. Of the estimated $200 billion that the United States will need to spend over the next 20 years to upgrade water distribution systems, almost half of that is needed for water loss control.

Water audits are often the most cost-effective and efficient solution to increasing demand. And like BPEs, the cost of a water audit is typically recovered in under a year. Effective water loss control programs significantly reduce the need for costly facility upgrades, and the recovered water can be sold to consumers, generating desperately needed revenue while meeting water demands. Another benefit of a water loss control program is the reduction of entry points for disease-causing pathogens, resulting in increased public health.

In Conclusion

Municipal water systems of today face a number of significant challenges including water quantity and quality concerns, aging infrastructure, population growth, increased regulatory requirements, climate change, and depleted resources. In order for water systems to remain profitable, and therefore functional, they must implement efficiencies that will increase revenue and decrease water loss, all with the least capital expenditure possible. Both BPEs and water audits are inexpensive ways to improve efficiency and to realize a return on investment in less than one year, saving limited funds for future upgrades and expansions.

October is ESOP Month, and T&H has reason to celebrate

The ESOP Association and its member companies have been celebrating Employee Ownership Month every October for over 20 years. The month-long observance aims to celebrate the myriad benefits of employee stock ownership plans (ESOPs) through employee education and team-building events. Tata & Howard celebrated for the first time this year, as October 2015 marks the one-year anniversary of the company becoming a 100% employee-owned company. Throughout the month, T&H employee-owners have been participating in contests, calls to action, and special events in order to celebrate not only ESOP Month, but also the first anniversary.

What is an ESOP?

An ESOP is a program that provides a company’s workforce with an ownership interest, most frequently at no up-front cost to employees. ESOPs are implemented for different purposes, often as a way to provide for the future transfer of ownership of a successful, closely-held private company from owners to employees.

In the United States, ESOPs are a defined contribution plan, which is a form of retirement plan. ESOPs are regulated by Employee Retirement Income Security Act (ERISA), a federal law that establishes minimum standards for retirement plans in private industry and extensive rules on federal income tax effects of employee benefit plans. ERISA was enacted in 1972 to protect the interests of employee investment plan participants.

Infographic by National Center for Employee Ownership (NCEO) from What Is an ESOP?

ESOP Statistics

According to the ESOP Association, ESOPs provide many benefits to employees, some of which are highlighted below:

There are approximately 10,000 ESOPs in place in the U.S., covering 10.3 million employees (10% of the private sector workforce).
About 330 ESOPs (3%) are in publicly traded companies.
An estimated 7,000 of the 10,000 companies have ESOPs that are large enough to be a major factor in the corporation’s strategy and culture.
Approximately 5,000 ESOP companies are majority-owned by the ESOP.
Approximately 4,000 are 100% owned by the ESOP.
At least 75.4% of ESOP companies are or were leveraged, meaning they used borrowed funds to acquire the employer securities held by the ESOP trustee.
Of the 10,000 employee-owned companies nationwide, fewer than 2% were financially distressed when they established their ESOP.
Approximately 99% of ESOP Association members are private, closely-held companies.
ESOPs exist primarily in small businesses – 68% of Association members have less than 250 employees.
While ESOPs are prevalent in a broad range of industries, approximately 23.4% of Association members are in manufacturing, followed closely by construction (15.3%) and engineering (10.9%).
Approximately 65% of ESOP Association members report that their ESOPs have been in place for 10 years or more.
4% of Association members have companies that are more than 50% owned by the ESOP.
6% of Association members offer a supplemental benefit plan in addition to the ESOP including, 401(k) plans, pension plans, and profit sharing plans.
Research indicates that ESOP implementation results in more information sharing, increased communications, and involvement in decision making for employee owners.
3% of ESOP Association members report that motivation and productivity increased as a result of the ESOP.
Savings from the low layoff rate of ESOP participants was $1.9 billion in 2014, showing that ESOP companies are an investment worth noting.
GSS figures released in June 2015 found that 1.3% of employees with employee stock ownership, which includes the ESOP model and other forms of employee ownership, said that they were laid off in the last year compared to a 9.5% rate for employees without employee stock ownership.

T&H employee-owners participated in a bubblegum chewing contest

Contrary to some rumors, ESOPs are not typically formed in an attempt to save a struggling company. In fact, the vast majority of ESOPs are formed by highly successful companies. The ESOP only helps to increase company success as it provides incentive for employees to ensure that the company remains prosperous. Employee-owners of ESOPs typically know more operative and financial information about their company than do employees of traditionally held private corporations, and are often more motivated and productive. After all, the more successful the company, the more financial reward to employee-owners.

Tata & Howard’s ESOP Celebration

This month, employee-owners at Tata & Howard have been immersed in ESOP fun and education. To date, employee-owners have participated in a “Guess the Share Price” contest, a “Guess the Labor Revenues per Employee” contest, a bubblegum chewing contest, a hike, and an ESOP Slogan contest. In addition, employee-owners have been treated to chocolate coin bags, Starbucks coffee breaks, and ice cream socials, and have participated in charitable activities such as a month-long food drive and a special donation to Water For People.

T&H employee-owners received their first share certificates on October 19, 2015

Celebrating the 23rd anniversary of Tata & Howard on October 19, 2015, Tata & Howard employee-owners received their first ESOP share certificates, and proved that they are ready for 23 more. Results from an anonymous survey show that Tata & Howard employee-owners overwhelmingly support the formation of the ESOP, and they have also embraced and conquered fun and educational challenges. The shift to an ESOP has been a positive change for Tata & Howard, and we look forward to many more celebratory Octobers. Happy ESOP Month!

25 Unique Manhole Covers in the U.S.

Manhole covers can be found in cities throughout the world, and are typically not given a second thought. After all, these unobtrusive, circular covers lead to underground infrastructure, which to most people is out of sight, out of mind. But manhole covers can actually be attractive and interesting, and are sometimes custom-designed and even whimsical. They also have an extensive history.

Beginning around 3500 BCE, stone slabs or wood pieces were first used to provide access to covered trenches that carried sewage away from cities, and this basic design was utilized until around 1850 CE, when the modern manhole was developed to provide access to then-emerging water and wastewater infrastructure. Since that time, manhole covers, which are typically round and weigh up to 300 lbs. each, have been manufactured from cast iron and haven’t changed much.

While many manhole covers are basic, with either no verbiage or a one word, generic label such as “sewer,” there are some unsung treasures throughout the country that are quite eye-catching. Below, we have listed 25 unique manhole covers from all areas of the country, and we encourage you to also go “drainspotting” the next time you find yourself walking city streets. You may be surprised at what you find, so be sure to let us know in the comments if you find any unusual or interesting covers. Enjoy!

Arizona_Brisbee_manhole_cover — This manhole cover from gold mining town Bisbee, Arizona features a mining cart filled with gold nuggets

Arizona_manhole_cover — Desert town Peoria, Arizona has a cactus and the sun on its manhole covers

Arizona_Phoenix_manhole_cover — This manhole cover from Phoenix, Arizona sports its namesake, a phoenix

California_McCloud_manhole_cover — McCloud, California is located in the northern part of the state, nestled at the base of Mt. Shasta, which is featured on its manhole cover

Chattanooga_manhole_cover — The town seal for Chattanooga, Tennessee, which includes the cannon located on Lookout Mountain overlooking the town, is featured on this manhole cover

Colorado_Denver_manhole_cover — The artsy, historic district in the town of Denver, Colorado features a hand-drawn design on its manhole covers

Disneyland_manhole_cover — Mickey Mouse adorns the manhole covers found in Disneyland, California

Florida_Jacksonville_manhole_cover — This manhole cover in the City of Jacksonville, Florida, named for Andrew Jackson, features the seventh President of the United States riding his horse

Florida_manhole_cover — The City of Hollywood, Florida illustrates its tagline, Diamond of the Gold Coast, on this manhole cover

florida_pelican_manhole_cover — This brightly painted manhole cover featuring a pelican adorns the sidewalk of St. Petersburg, Florida

Kansas_manhole_cover — In an effort to keep their environment clean, the City of Hutchinson, Kansas chose to emblazon a fish with the message “No Dumping” on its manhole covers

Staying true to its roots, New Orleans, Louisiana has a somewhat magical manhole cover Photo courtesy PDPhoto.org — Staying true to its roots, New Orleans, Louisiana has a somewhat magical manhole cover
Photo courtesy PDPhoto.org

new_mexico_manhole_cover — In 2006, Albuquerque, New Mexico replaced many of their manhole covers with this decorative design in commemoration of their tricentennial celebration

Massachusetts_Boston_manhole_cover — This plain manhole cover emblazoned with “Boston Sewer” sits amid a cobblestone street in the historic city of Boston, Massachusetts

Michigan_manhole_cover — This artistic manhole cover adorns a street in Detroit, Michigan; photo courtesy of Michele Oberholtzer

Minnesota_Duluth_Bod_Dylan_manhole_cover — Duluth, Minnesota’s manhole covers on Bob Dylan Way pay tribute to the City’s most famous son

Minnesota_Minneapolis_manhole_cover — Minneapolis, Minnesota, known as the “City of Lakes” and known for its fishing, has manhole covers adorned with aquatic life and underwater vegetation

Louisville Kentucky manhole cover — This visually pleasing manhole cover in Louisville, Kentucky was adapted for use as cover art for the book “Manhole Covers” by Mimi Melnick

nebraska_manhole_cover — This manhole cover Omaha, Nebraska celebrates some of the City’s history

While these manhole covers in front of the Music School in New York City are nondescript on their own, the artwork tying the two together is both creative and playful

Pennsylvania_manhole_cover — This manhole cover in Erie, Pennsylvania is extremely detailed with historical illustrations

Tennessee_manhole_cover — Gatlinburg, Tennessee chose to showcase a squirrel on its manhole covers

Utah_StGeorge_manhole_cover — This manhole cover in St. George, Utah features some rustic artwork

Washington_Seattle_gasworks_park_manhole_cover — Swirling illustrations of waves, marine life, and swimmers adorn this manhole cover found in Seattle, Washington

Virginia_Norfolk_manhole_cover_misspelled — In 2012, this manhole covering Norfolk, Virginia was brought to the attention of local government due to its misspelling of the City’s name; the manhole cover has since been replaced

Water and Wastewater Treatment Infographic

Municipal water and wastewater treatment is a specialized and involved process that focuses on keeping communities healthy and safe. Feel free to download and share, with attribution. For a printable, high resolution version of the water and wastewater treatment infographic, please click here.

Imagine a Day Without Water

Imagine a day without water. What would you do after you woke up? There would be no shower, no morning cup of coffee, no brushing your teeth, no flushing the toilet. And that’s just first thing in the morning. Imagine the rest of the day without water – it’s almost impossible to do.

Water is life. We’ve heard it before and know it to be true, and yet water is one of the least valued, at least in terms of dollar amounts, resources on the planet. According to the Value of Water Coalition, municipal water in the United States costs the consumer $.01 per gallon, whereas soda costs $2.37 per gallon. In a way, it’s understandable. After all, water isn’t something we think about. If we want fresh, clean water, hot or cold, all we do is turn on the tap. And our wastewater simply flows down the drain or flushes down the toilet. Out of sight, out of mind.

The reality is that providing safe, clean drinking water and treating our wastewater is in fact a complicated and costly endeavor. There are thousands of pipes running beneath our feet, carrying water from treatment plants where all toxins, bacteria, and other harmful material are removed, and there are even more thousands carrying away our wastewater, ensuring that it is hidden away so we aren’t exposed to it or sickened by it. These pipes run to wastewater treatment plants where the wastewater is treated and cleaned before it is returned to the ground to replenish our water supply.

One of the greatest achievements of the 20^th century was the construction of our nation’s water and sewer systems. Diseases such as typhoid fever and cholera, once prevalent and deadly, were practically eradicated. Industry thrived, the economy flourished, and public health improved exponentially. Our lives and livelihoods depend on water, yet we balk at investing in it. The average monthly cell phone bill is $73, cable TV bill is $99, and internet bill is $47. Yet the average monthly water bill is only about $30. We can all easily imagine a day without our cell phone, cable TV, or internet; these items are luxuries. And yet we pay more for these services than we do for water. That is a sobering fact that needs to change, and soon.

According to the Value of Water Coalition, the expected longevity of water and wastewater infrastructure is 50 years, yet the average age of these very pipes in Washington D.C. is 79 years. New England infrastructure is even older, much of it over 100 years old. Aging infrastructure accounts for 1.7 trillion gallons of lost water — water that has already been treated and is clean and ready for drinking — per year, which is the amount of water consumed by the top ten American cities annually. With 43% of our nation experiencing drought, and our demand rising due to population growth, this excessive water loss from failing pipes is crippling. The 1.7 trillion gallons of lost water comes at a staggering cost of $2.6 billion, which is about the amount of money that the federal government allots to water infrastructure annually.

To repair our nation’s water and wastewater infrastructure would require an investment of $4.8 trillion over the next 20 years. Yet infrastructure spending is actually down 30% since 2012. Add to that the degradation of our water supply through pollution and environmental damage, and it is clear why communities are struggling to simply meet drinking water standards and to maintain their aging infrastructure, never mind upgrade.

Hoping to share the value of our world’s most precious resource, the Value of Water Coalition conceptualized “Imagine a Day Without Water.” The inaugural event takes place October 6-8, 2015, and encourages everyone, from water suppliers to engineering firms to concerned citizens, to spread the word about the value of water. It’s easy to see that our transportation infrastructure needs investment; after all, hearing about bridge collapses and failing dams is cause for concern, and the American public demands repairs. But what about water? Again, we don’t see it, so we don’t think about it or talk about it. But if our water system failed, life as we know it would halt. Industry depends on water for manufacturing, agriculture requires irrigation, and we need water simply to go on living.

The time to invest in our nation’s water and wastewater infrastructure is now. Help spread the word about the value of water, and encourage friends and colleagues to try to imagine a day without water. With some smart investing, careful planning, education, conservation, and governmental support, the most we will need to do is imagine a day without water, not actually live it.

Coffee Day 2015: Coffee, the Environment, and Sustainability

This week, we celebrate coffee. Tuesday, September 29, is National Coffee Day, a beloved American holiday where coffee powerhouses such as Dunkin’ Donuts, Krispy Kreme, Peet’s, Starbucks, and Wawa offer freebies and discounts. As an added coffee bonus this year, the International Coffee Organisation (ICO) has designated October 1 as the first annual International Coffee Day. This special day will celebrate all things coffee and will be launched in Milan, Italy as part of the city’s 2015 World Fair.

Global Coffee Consumption

After only crude oil, coffee is the most sought commodity in the world, and is worth over $100 billion globally. Sugar, corn, natural gas, and even gold all take a back seat to coffee. The global population drinks over 500 billion cups of coffee every year and more than half of all Americans over the age of 18 drink coffee every single day. Coffee farms, 67% of which are in the Americas and 90% of which are in developing countries, provide the economic livelihood for over 25 million people. And while developing nations grow and produce the world’s coffee, industrialized nations drink it. After water, coffee is actually the most consumed beverage in the world. Finland drinks the most coffee per capita in the world, and America consumes the most coffee overall. Brazil, the top coffee producing nation in the world, ranks a distant 13^th per capita consumer.

Environmental Impact

As demand has increased, coffee producing countries have been responsible for a significant amount of global deforestation and watershed damage. Coffee was historically a shade-grown crop, intolerant of direct sunlight. Shade trees provide a habitat for birds that provide natural insect control, and they also enhance soil and encourage water retention in the soil, resulting in shade-grown coffee requiring little to no pesticides or fertilizers.

Unfortunately, only 24% of today’s coffee is actually shade-grown. Newer techniques that call for clear-cutting forests and applying chemicals have been found to greatly increase yields — but at great environmental and health cost. 60% of the six million acres of coffee lands have been completely stripped of shade trees since 1972, and coffee is now the third most pesticide-laden crop in the world, behind only tobacco and cotton. Bird populations have decreased by 20% in the last ten years alone, and soil erosion and depletion resulted in producers searching for new land on which to plant their coffee crops, and further deforestation, particularly of rainforests. Rainforests act as the world’s thermostat by regulating temperatures and weather patterns and are also critical in maintaining Earth’s finite supply of fresh water. Now understood to be unsustainable, this “new” method of growing coffee also damages watersheds and affects the health and livelihood of local populations.

algae_bloom — Excessive nitrogen or coffee wastewater from wet mills both contribute to algae blooms in coffee-growing nations

Because the land is clear-cut and coffee is typically grown in highlands, soil erosion and agrochemical runoff are major problems in coffee production. The excessive amount of pesticides and fertilizers needed to grow conventional coffee runs unhindered and unfiltered into lakes and streams downhill from the coffee shrubs. Very often, these lakes and streams are the main water supply for the local community. More and more frequently, water supplies in coffee-growing nations are becoming severely contaminated due to runoff from fertilizer, which adds nitrogen to the depleted soil, and, in turn, the local water. And since nitrogen is a vital nutrient for plants and encourages plant growth, it also encourages the growth of algae in bodies of water. Excessive algae in water bodies, called “blooms”, makes the water unfit for consumption and causes foul odors and tastes. When the algae finally dies and starts to decompose, it removes all oxygen from the water, causing ammonias to form, and results in the widespread die-off of fish and other aquatic organisms. Groundwater beneath coffee farms can also become contaminated with excess nitrogen, causing a health threat to humans.

Pesticide usage in coffee growing also contaminates water supplies. Whether entering the water supply through aerial spraying or from soil erosion and runoff, pesticides are known to be toxic to human and aquatic health. Many of the pesticides used in coffee growing nations have long been banned in the United States, and are known to bio-accumulate, disrupt hormones, and cause cancer.

Wet mill coffee processing uses an exorbitant amount of water and produces wastewater that can harm ecosystems in coffee-growing communities

And that’s just the growing. Add coffee harvesting and processing, and the outlook is grim. Conventional coffee is strip harvested, meaning all berries, ripe or not, are stripped off the vine, and sorted and depulped using a wet mill. Water-intensive mills, or wet mills, use water to sort and strip the beans of their mucilage, or protective coating. The beans are then allowed to ferment before they are washed, again utilizing an exorbitant amount of water, to ensure that all of the mucilage has been removed. Even small coffee mills utilize millions of gallons of water over a season, oftentimes depleting local water supplies and causing die-off of aquatic organisms. In addition, the wastewater produced by these wet mills contains nitrates, carbohydrates, proteins, fibers, fat, and many other substances, and these substances end up contaminating the local water supply. In fact, coffee wastewater is one of the largest contributors to water supply contamination in coffee-growing communities. Bacteria that break down the sugars and pectins in coffee wastewater require excessive oxygen, resulting in the same oxygen depletion and subsequent die-off caused by excessive nitrogen as described above. Many times, streams or other bodies of water contaminated in this way are effectively killed, requiring significant treatment that costs more than most of these communities can afford.

Sustainability

coffee_indonesia — A man hand strips coffee in Indonesia

Because of growing knowledge and concern over the detrimental environmental effects of coffee production, solutions have been increasing. Dry mills are one example. Dry mills utilize mechanical demucilagers, do not require fermentation or washing processes at all, and use less than three gallons of water per pound of dry coffee. For wet mills, a solution lies in wetland engineering. For example, TechnoServe and Mother Parkers Tea & Coffee have joined forces to install Vetiver grass wetlands at wet mills. These wetlands, which are a low-cost but sustainable wastewater treatment option, contain deep-rooted Vetiver grass that drinks in wastewater and slows infiltration. Any remaining effluent enters a small pond at the bottom of the wetland where it evaporates.

Table courtesy of Department of Wildlife Ecology and Conservation, University of Florida/IFAS Extension,

But there are still plenty of conventional coffee producers, simply because conventional coffee processes are cheaper. Therefore, some forward-thinking companies have taken it upon themselves to require better practices. Mega-coffee chain Starbucks, the third largest restaurant chain in the world, implemented one of the industry’s first sets of sustainability standards, called Coffee and Farmer Equity (C.A.F.E.) Practices. Verified by third-party experts, this set of standards is more stringent than even Organic Certification or Fair Trade Certification, and focuses on both environmentalism as well as social responsibility. Peet’s Coffee & Tea works with certification organizations such as Rainforest Alliance Certification and UTZ Certified — which is on par with Starbucks C.A.F.E. practices — to ensure that every bean they purchase is fair trade as well as sustainably grown. But the San Francisco Bay-based company takes it one step further: they roast all their beans in the nation’s first LEED Gold certified coffee roasting plant, opened in 2007. Other coffee certifications include 4C Certification and Smithsonian Migratory Bird Center’s Bird-Friendly Certification.

Conclusion

Coffee is a beloved beverage, enjoyed worldwide throughout different cultures, but it has come under scrutiny for its negative environmental and humanitarian impact in recent years. There are ways to reduce and even remove the detrimental effects associated with coffee production, and some forward-thinking coffee companies have implemented buying standards in an effort to improve both our environment as well as the livelihood of coffee farmers, while many other small coffee companies sell only fair trade or organic coffees. This week, as we celebrate both National Coffee Day on Tuesday, September 29, and the first annual International Coffee Day on Thursday, October 1, we can choose to support coffee companies who grow responsibly, which means helping to protect our world’s most precious resource — water. Now that’s something to celebrate. Happy Coffee Week!

Pollution Prevention Week 2015

Pollution Prevention Week 2015, which celebrates the 25^th anniversary of the Pollution Prevention (P2) Act, was held September 21-27, 2015. The P2 Act was implemented in 1990 in an effort to address the significant impact that pollution has on our environment. It is inordinately easier to prevent a problem from happening than to fix an already existing problem, and below we’ve compiled a list of some practical steps we can all take to reduce pollution as well as our individual and collective environmental footprints.

Recycle

The average American generates over four pounds of trash every day and about 1.5 tons of solid waste per year, 75% of which is recyclable. The EPA estimates that we only recycle 30% of it, even though over 87% of Americans have access to a curbside recycling program. In a single year, Americans throw out about 28 billion bottles and jars as well as about 36 billion aluminum cans, the scrap value of which is estimated to be an astonishing $600 million. Glass containers and cans can go from the recycling bin to a store shelf in just 30-60 days, and 20 recycled cans can be made with the energy needed to produce one new can. Recycling takes little effort yet yields significant impact. Here are some ways to recycle:

Participate in an office recycling program for paper, toner cartridges, and kitchen waste
Recycle all plastics, glass, metals, and paper with a single stream recycling program
Recycle used motor oil, eyeglasses, cell phones, electronics, mattresses, and other household waste at appropriate disposal sites
Donate used clothing, furniture, household items, and books to charitable organizations
Start a compost pile for kitchen waste, or better yet…

Reduce greenhouse gas emissions by cutting food waste

In the United States, food waste is the largest single source of waste, with 30-40% of the food supply wasted, equaling more than 20 pounds of food per person per month. According to a Food and Agriculture Organization of the United Nations (FAO) report, about a third of the food produced for human consumption worldwide — about 1.3 billion metric tons — is wasted, accounting for the equivalent of about 3.3 billion metric tons of greenhouse gas emissions. To put it into perspective, that’s about twice the amount of carbon emitted from America’s transportation sector and close to twice the annual emissions of the entire country of India. And all that wasted food equates to a lot of wasted water, as raising and growing food requires an exorbitant amount of water. To produce one pound of beef takes about 1,800 gallons of water, and to produce a pound of rice takes about 400 gallons. In fact, the amount of food we waste also wastes about 250 cubic kilometers worth of ground and surface water — an amount about three and a half times the volume of Lake Mead when full.

Reducing the amount of food we throw away starts at the individual level. Plan meals for the week and make a shopping list — and stick to it. Be sure to eat any leftovers for lunch the next day, which will also save money (and calories!) when compared with eating out. Donate any unused food to food banks and shelters. Request “doggie bags” from restaurants, freeze fresh foods before they spoil, and use aging fruits in smoothies and baking. These are all simple yet effective ways to greatly reduce the amount of food we waste.

Reduce usage and carbon footprint

In one year, Americans fill landfills with trash equivalent to the weight of 88 million cars and produce enough trash to circle the earth 24 times. We have the highest per capita water usage in the world, and we use 26% of the world’s energy. In addition, we produce a significant amount of hazardous waste, which is any liquid, solid, or gas that may cause significant threats to human health or the environment if improperly managed. Sources of hazardous waste include industry, research, medical, household, chemical producers, agriculture, and mining, as well as many others. Hazardous waste is often disposed of in landfills or injection wells, where the toxic substances can leak into surrounding groundwater. Groundwater is a major source of drinking water and, once it is contaminated, it is extremely difficult, costly, and sometimes even impossible to remove pollutants. Recycling and waste minimization is the best — and easiest — way to deal with hazardous waste. Changing our daily habits is a simple way to reduce our usage and environmental impact, and to lessen the amount of pollution we produce.

Use reusable grocery and shopping bags
Install programmable thermostats to automatically turn down the heat or air conditioning at night
Replace incandescent lights with fluorescents or LEDs
Install water-efficient toilets, faucets, and shower heads
Fix all household leaks
Plant drought-resistant grass and plants to reduce water needs
Only run washing machines and dishwashers when they are full
Power down and unplug electronics when not in use
Print double-sided on recycled paper, and implement a “think before you print” mindset
Dispose of all household hazardous waste including batteries, cleaning fluids, paint thinners, pesticides, and mercury items at a dedicated collection site
Purchase non-toxic products with minimal packaging
Use little to no fertilizer or pesticides, especially near rivers, streams, lakes, and ponds
Buy locally, including from farmers, businesses, and manufacturers, as it reduces fuel needs and transportation emissions and supports the local economy
Carpool, bike, walk, or take public transportation to work when possible

Protect our water supply — careful what you flush!

Speaking of water contamination, there is another source of potential water pollutant that is in every American’s home: the toilet. It seems like the perfect place to dispose of all things unsightly. Unfortunately, after the whoosh and the swirl, the item doesn’t simply disappear. In fact, it travels a complex path. What we flush down our toilets travels through sewer pipes to wastewater treatment plants, where it is treated and piped back into our lakes and streams. Therefore, we need to be mindful of protecting not only our pipes and sewer systems, but also our environment. Private septic systems are also at risk for clogging, failing, and for leaching toxins back into the water supply. The only items that should ever be flushed down a toilet are human excretions and plain old toilet paper. To show some concrete reasons why the toilet shouldn’t be considered a garbage disposal, we’ve made a list of commonly flushed items that wreak havoc on wastewater systems and our ecosystem.

Disposable Diapers
Not only do they cause instant clogging, but they also are loaded with toxic coagulating chemicals that simply shouldn’t be in our water supply.
Feminine Products
Feminine products are akin to diapers and contain chemicals as well as non-biodegradable parts, and they are responsible for the majority of household clogs. All of these items should go in the trash – including the applicators.
Band-Aids
They are non-biodegradable and a biohazard and should be thrown in the trash.
Automotive Fluids, Paint, Solvents, Sealants, and Thinners
All of these items contain toxic chemicals that contaminate water. Please dispose of them in an appropriate manner, not down the toilet.
Unused Medications
While flushing seems like a great idea for unused meds – after all, we don’t want them getting into the wrong hands – it is actually extremely dangerous. Flushed meds negatively impact ecosystems by seriously disrupting reproductive cycles of fish, and flushed antibiotics encourage the evolution of drug-resistant microbes. Water treatment facilities do not filter meds, and they are entering our water supply at an alarming rate. Medications should be disposed of safely in the garbage or through an approved take-back site. Please check www.takebackyourmeds.org for more info.
Cigarette Butts
Cigarettes are loaded with toxic chemicals that end up in our water supply when the butts are flushed. Don’t flush, or better yet, don’t smoke!
Cat litter
Most cat litter is made from clay and sand, which should absolutely never be flushed down any toilet, and cat feces contains toxins and parasites that shouldn’t be in our water supply.
Pets
Give the goldfish, mouse, or gerbil a good old-fashioned burial. Decomposing animals cause blockages and release toxins into our water supply.
Other items of note: wipes (even if they say flushable!), cooking fats, paper towels, cotton balls, hair, cosmetics, cleaning supplies, food, and chewing gum. When in doubt, throw it out!

There are myriad ways to improve our environment by reducing the pollution we produce, and the above ideas are a small sampling of how we can be greener in our daily lives. P2 Week is the ideal time to take a look at our daily habits and patterns and to see what steps we can take to lessen our environmental impact. If every person made even a small effort to be more eco-conscious, the total impact would be staggering. Whether it is protecting our water supply, reducing greenhouse gas emissions, or using fewer toxic products, let’s all implement a few small changes this week to protect our environment and reduce pollution. Happy P2 Week!

Desalination: a viable option?

iceberg for water supply — Some people have suggested towing icebergs to places that need freshwater. Photo: SERPENT Project

Drought. Scarcity. Pollution. Climate change. Demand. Overpopulation. These are all issues with our nation’s water supply with which we have become all too familiar. Engineers and water systems are scrambling for solutions, and countless possibilities — some as basic as conservation and water bans and some as complicated as water reclamation and transporting icebergs — have been considered. Communities struggle to meet demand with dwindling supply and a limited budget, and many have begun to give desalination serious consideration.

Desalination, or the process of removing salt from water, used to be summarily dismissed as a supply option due to its expense and energy consumption. However, in light of the increase in water scarcity, desalination has become a feasible option for many water-stressed communities. Already commonplace throughout the Middle East, desalination plants are now popping up all over southern California and Texas. Let’s look at some facts about global desalination:

When complete, the Carlsbad, CA desalination plant will be the largest in the western hemisphere

Dubai sources over 98% of its potable water supply from desalination

Global leaders in desalination are Saudi Arabia with 17% of global output, United Arab Emirates with 13.4%, and the United States with 13%

Nearly 70% of Israel’s domestic water consumption comes from desalination

Most desalination plants are in the Middle East, where energy is less expensive and environmental regulations are less stringent

Currently under construction, the $1 billion, 50 mgd Carlsbad desalination plant in Carlsbad, CA will be the largest in the western hemisphere when completed

Costing $2 billion, the Sydney, Australia desalination plant has not produced any water since 2012 due to high dam levels

The most commonly utilized desalination technology is reverse osmosis (RO), which was invented in California in the 1950s. RO uses high pressure to force water through fine membranes that leave the salt behind. For every two gallons of salty water, only one gallon is made available as freshwater. The whole process utilizes an exorbitant amount of energy, with energy accounting for up to half the total cost of desalination. In fact, desalinated water costs about $2,000 per acre-foot, which is approximately the amount of water used by a family of four in six months. Because less salty water requires less energy for processing, the most cost-effective desalination plants treat brackish, or slightly salty, water rather than seawater.

There are some environmental concerns surrounding desalination as well. The highly concentrated salt brine left behind requires disposal. However, because it is twice as dense as seawater, it sinks to the ocean floor and spreads, suffocating bottom-dwelling marine life. Therefore, the brine byproduct must be mixed with freshwater, typically in the form of treated wastewater or cooling water from a power plant, prior to being released into the ocean. In addition, fish and other marine life are often sucked toward the intake pipes where they are killed on the intake screens (impingement), and smaller marine life, such as plankton, larvae, and fish eggs, pass through the screens and are killed during the desalination process itself (entrainment). Fortunately, there have been some recent innovations to address these concerns. For example, subsurface intakes pull seawater from beneath the seafloor, virtually eliminating impingement and entrainment. An added bonus to subsurface intakes is the fact that the sand acts as a natural filter that pre-filters the water, reducing the plant’s chemical and energy usage.

central_valley_california — California’s Central Valley is largely agricultural and relies heavily on irrigation

This summer, HydroRevolution, a subsidiary of San Francisco-based agricultural and commercial water producer WaterFX, announced its plans to build California’s first commercial solar desalination plant in the state’s heavily agricultural Central Valley. The plant will run solely off solar thermal energy and will utilize Aqua4, a new desalination technology that produces only solid salt and freshwater, with zero excess discharge. In addition, it will utilize unusable irrigation water from a 7,000-acre ditch rather than seawater. The plant will provide the necessary freshwater for the area’s irrigation needs without the energy consumption or concentrated briny discharge of traditional desalination plants. Admittedly, having the 7,000-acre ditch from which to draw the water helps immeasurably, and isn’t an option for most other areas.

But desalination isn’t only being used in the southwestern part of the country. In Massachusetts, the Town of Swansea recently opened the first publicly held desalination facility in the Northeast. A coastal town, Swansea experienced a population boom that led to groundwater supplies running low, which in turn allowed seawater to seep into the aquifers. The result was a water crisis that forced the enactment of water bans, steep fines – and even left 30% of the town without water for a brief period one summer.

According to Robert Marquis, who has acted as Swansea’s water manager for over 40 years, “We just couldn’t support a burgeoning population or commercial growth,” he said. “Anything that came into Swansea, we were objecting to it if it was going to be water intensive.”

Designed with the help of Tata & Howard’s own John Cordaro, P.E., the Swansea desalination facility has been online for over a year, and took home a third place global finish at the 2014 Global Water Awards, losing only to Dubai, Singapore, and Sorek, Israel.

A semipermeable reverse osmosis membrane coil used in desalination

There is one matter with RO that, while a non-issue in sunny southern Californian, is a primary concern to the Northeast: RO filters are delicate and highly intolerant of ice, and cease being functional below 36°F. To address this issue, Swansea installed two miles of pipes in order to sufficiently heat the incoming river water prior to its entering the plant.

For water-stressed Swansea, desalination has been a successful solution. But nearby Brockton, Massachusetts has not realized the same benefit from their desalination facility. Costing roughly $120 million, the plant was constructed to utilize brackish river water as opposed to seawater, which Brockton officials believed would make the whole process affordable. However, seven years later, the water produced by the Brockton desalination plant is still too expensive, so the city has turned to a local lake as its source, leaving the costly desalination plant largely in disuse.

While desalination is heavily utilized throughout the Middle East, it has only recently come under serious consideration in the United States. As water scarcity increases due to population growth, climate change, and growing demand, alternative water source options are receiving close attention. Once not even considered due to energy costs and environmental concerns, desalination has become a frequent and sincere topic of conversation for meeting future needs. And with further advances in technology that address both energy usage and environmental impact, there remains a strong possibility that desalination could become a widely acceptable solution nationwide. Now if folks could just get on board with water reclamation…

Manganese in Water: Risks & Treatment

Manganese is an element that occurs naturally in the earth’s crust and is present in rocks, dirt, water, and particulate in the air. It is also used in the manufacture of steel, ceramics, glass, and fertilizer, and is found in low concentrations in 95% of public water supplies. An essential nutrient, manganese is required in healthy diets and can be found in plant-based foods such as nuts, grains, and beans. While studies suggest 2.5-5.0mg/day is considered a sufficient and safe intake for adults, recent reports have indicated that excessive exposure to manganese can potentially cause serious health issues.
Health Issues Surrounding Manganese in Drinking Water
There is conclusive evidence that long-term exposure to high concentrations of manganese in drinking water is associated with toxicity to the nervous system, producing a syndrome dubbed Manganism, or “manganese-induced Parkinsonism,” because of its symptomatic similarity to Parkinson’s disease. Some of these neurological symptoms include muscle tremor and rigidity, difficulty walking, impaired speech, and reduced motors skills. Also, manganese toxicity can produce neurobehavioral symptoms such as mood changes, short-term memory loss, and slowed reaction time. The elderly are particularly susceptible to manganese toxicity, likely because of normal nervous system decline combined with years of environmental toxin accumulation.
Infants and very young children are also particularly susceptible to manganese toxicity for different reasons. Their bodies do not break down manganese as easily as older children and adults, so they absorb more of the element. In addition, they excrete less of it, so excessive manganese concentrations affect them more. Formula-fed infants are most at risk since manganese-fortified baby formula is typically prepared with municipal well or tap water which also contains manganese. Therefore, these babies receive a higher concentration than does the rest of the family, while their small bodies requires less.
Recent studies on children who have been exposed to high levels of manganese in water indicate that brain development is affected. Results from these studies show that these children scored significantly lower on intellectual tests, suffered from learning difficulty and memory issues, and often exhibited hyperactivity and behavioral disorders such as Attention Deficit Disorder (ADD) and Pervasive Developmental Disorder (PDD).
Although not necessarily caused by manganese in drinking water, high manganese exposure has been found to cause more significant problems. Interestingly enough, high manganese exposure has long been associated with violent behavior, and there have been many studies performed on prisoners with results indicating that manganese toxicity contributes to delinquent behavior. Three studies conducted in the California prison system on inmates incarcerated for violent behavior found that these inmates had much higher concentrations of manganese in their hair than did the control groups. Another study performed in Australia found significantly high levels of manganese to be a common factor in autopsies of several mass murderers. Excessive manganese decreases serotonin function and reduces dopamine levels, resulting in social withdrawal combined with increased depression and aggression. While these studies on criminal behavior are certainly disturbing, there is no need to panic. Manganese toxicity at these levels are more likely from manganese inhalation, which is far more toxic than manganese ingestion, as the liver is unable to filter out inhaled manganese.
Guidelines for Manganese in Drinking Water

map of manganese in groundwater — Map showing manganese concentrations in groundwater

Manganese is found throughout New England water supplies, and becomes evident in drinking water at concentrations over 0.05 mg/l by imparting an unpleasant odor, a sharply metallic taste, and brownish-yellow discoration. For this reason, the United States Environmental Protection Agency (EPA) has set a Secondary Maximum Contaminant Level (SMCL) of 0.05 mg/l. In light of the recent studies indicating health risks, many states have chosen to regulate manganese. The Connecticut Department of Public Health (CT DPH) has set an Action Level of 0.5 mg/l, whereas Massachusetts has set an even lower regulatory limit of 0.3 mg/l due to concerns over manganese exposure in formula-fed babies under one year of age.
Manganese Removal Options

manganese water treatment public — Tata & Howard completed pilot testing, design, permitting, bidding, and construction management services for the Town of Wayland’s Baldwin Pond Water Treatment Plant which included iron and manganese removal

For public water supplies, many treatment options are available, and the best treatment option for a particular water supply is fully dependent on a number of factors including manganese levels, the presence of other contaminants, and existing treatment methods. The most common treatment is oxidation followed by filtration. The oxidant converts soluble manganese to an insoluble, filterable form while killing any disease-causing bacteria, and the filter then removes the insoluble particles from the water. While the treatment technology seems simple, both the source water and treated water must be monitored to determine both proper oxidant dosage and if the oxidation was successful. The most common chemical oxidants utilized today are potassium permanganate, chlorine, and ozone. After the water is treated with a chemical oxidant, it must be filtered using media, membrane, or biological filtration. Media filtration technologies include GreensandPlus, LayneOx®, and Granulated Activated Carbon (GAC); membrane filtration technologies include microfiltration, ultrafiltration, and nanofiltration; and biological filtration technologies include Mangazur®.
For homes with private wells, a whole house treatment option is typically recommended in order to preserve plumbing fixtures. One treatment technology is oxidation-filtration and consists of permanganate or chlorine feed for either batch or continuous preoxidation along with a manganese dioxide-based catalytic filter. The other treatment, most often used when hardness is also present, is a softening system with a cation exchange. Both systems cost approximately $1,500-$3,000 for initial installation, with $100 annual maintenance. Oxidation-filtration maintenance includes the ongoing purchase of permanganate or chlorine pre-treatment, whereas softening systems require the ongoing purchase of salt pellets for backwashing.

Ten Eco-Friendly Fall Yard Tips

Save water, energy, time — and money — with these ten eco-friendly fall yard tips

The average American’s environmental footprint has increased exponentially over the past 100 years, with America currently having the highest per capita water consumption in the world. The average African uses about 5 gallons of water per day, an average European uses 50 gallons per day, and the average American uses over 100. In addition, chemicals, personal care products, pharmaceuticals, and other toxins have been detected in some of our water supply resources. There are many simple, cost-effective methods of reducing our ecological footprint and of improving the environment in which we all live — and it starts right in our own backyard.

1 Direct downspouts onto lawn or garden

Stormwater has become a major environmental concern, as it carries pollution, chemicals, and bacterial contamination into our waterways. One of the easiest ways to prevent stormwater from entering storm drains is to direct downspouts onto grassy areas or gardens. Downspouts should never drain onto impervious surfaces such as driveways or walkways where stormwater flows unfiltered into storm drains or waterways. Plants and soil act as a filter for stormwater so that it is cleaner when it enters our water supply.

2 Install a rain barrel

Rain barrels capture rainwater from gutters and downspouts for reuse in gardens and lawns, preventing unfiltered pollutants from entering our waterways. Installed easily, rain barrels come in an assortment of shapes and sizes, can be inexpensively built from readily obtained materials, and can even be decorative. A rain barrel is also a fun project for kids, and introduces them to the concepts of conservation and reuse. Note: rain barrels should not be allowed to freeze, as they could suffer damage or even break. Empty them and put them into storage when winter arrives.

3 Clean gutters

One of the easiest ways to prevent stormwater runoff AND save your roof and siding is to clean the gutters on your home. Utilizing a ladder or a service, remove all dead leaves and debris from gutters and ensure that water flows freely from gutters to downspouts. If your gutters clog frequently or if your home is in a heavily wooded area, consider installing gutter guards.

4 Sweep driveways and walkways

Never use a hose to wash down driveways, walkways, and sidewalks! Hosing down these surfaces wastes water and also pushes pollution into storm drains and waterways. Instead, sweep away dirt and debris and dispose of it properly so that pollution doesn’t enter drains or our water supply.

5 Aerate your lawn

aeration lawn — Photo courtesy of Akron Lawn Care Services

Over time, lawns become compacted from use, preventing water and nutrients from reaching roots. Aerating removes small plugs of soil from the lawn, loosening the soil and allowing oxyten, nutrients, and water to more easily permeate the lawn. Aeration improves the health of soil and allows grass roots to grow more deeply, resulting in a more vibrant lawn. Consider sharing the cost of aerator rental from your local hardware store with a neighbor.

6 Apply natural fertilizer

Contrary to what most lawn maintenance companies profess, lawns only need to be fertilized once per year, ideally in the fall. Avoid using chemical or synthetic fertilizers as they contain water-soluble nitrogen, which dissolves during rain or lawn watering and can run into our water supply. Instead, opt for natural fertilizers, which typically contain insoluble nitrogen that is released slowly over time onto the lawn. Natural fertilizer stays in the lawn for a longer time period, providing better feeding, and prevents over-fertilizing and subsequent burning. Even better, the easiest, most affordable natural fertilizer can be found right in your own backyard…

7 Start composting

Rather than being bagged and hauled off to already overflowing landfills, grass clippings, dead leaves, and other organic yard waste can be turned into organic fertilizer rich in nutrients. Simply shred the waste using clippers or a mulcher, and then add it to a compost bin. Compost bins can be quickly constructed with a few items from the hardware store or can be bought pre-assembled. Green waste, such as grass clippings, is rich in nitrogen, whereas brown waste provides carbon energy for the organisms responsible for doing the decomposing. Be sure to add relatively equal amounts of both for the best possible results. Add water to the pile until it is just moist enough to wring a few drops of water from the waste, and then let it do its work! Add kitchen vegetable scraps and yard waste to the pile, keep it moist, and turn it once a month. By spring, you will have all natural, nutrient rich fertilizer — for free. Note: meat, ashes, pet waste, and pressure treated wood should never be composted.

8 Overseed

Fall is the best time to add grass seed to your lawn. Overseeding inhibits weed growth, improves lawn appearance, and increases drought tolerance. When overseeding, use native grass and groundcover seeds that require less maintenance and water and provide higher stress tolerance than traditional grass seed. Utilize a seed spreader to ensure uniform seeding.

9 Update outdoor lighting

solar lights — Solar lighting is an attractive, energy-efficient option for a walkway

Shorter days are upon us, which means longer nights — and outdoor lighting that stays on for an extended period of time. Replace outdated incandescent bulbs with LED or fluorscent bulbs to save energy and money. Also, install automatic shut-offs or timers on outdoor lights to avoid running lights when they aren’t needed. Enthusiastic environmentalists can consider purchasing and installing solar lights. Solar lights are energy efficient and eco-friendly, wire-free, automatically turn on at dusk and off at dawn, produce a warm and inviting glow, and are a snap to install. Solar lights are available in every shape and size and can be used for walkways, entry areas, driveways, sheds, pools, patios, and even holiday decorating.

10 Perform an exterior house check

To save water and energy this winter, be sure to perform an exterior house check this fall. Examine all windows and doors for gaps and cracks, and repair any areas that allow heat to escape. Also, remove all hoses from outdoor spigots and be sure the water is turned off. If you have a pool, winterize it properly to prevent any damage, and be sure to install a quality pool cover to minimize water evaporation. Since the average pool holds about 25,000 gallons of water, avoiding the need to refill the pool in the spring is an important step in household water conservation.

Category: The T&H Blog