EWRI CURRENTS VOLUME 21, NUMBER 1 Winter 2019
ASCE Government Relations Update Early Pittsburgh Waterworks and Ironworks and the EWRI 2018 History Symposium The Atlantic Coral Reef Exhibit: Diving a Little Piece of Paradise, in Baltimore Developing Brackish Groundwater Supplies in Central Florida: Polk Regional Water Cooperative Southeast and West Wellfield Projects EWRI Fisheries Engineer Committee Members Attend 2018 Fish Passage Conference in Australia
I appreciate the opportunity to serve this year as the president of EWRI. I recognize the associated responsibility to carry on with the successful work of all the prior presidents. As I accept this responsibility, I want to especially thank Cris Surbeck for her dedicated service as our president this past year. She is a capable leader and has been a wise voice during our discussions and decision making process. As I have considered the year ahead of me as your president, I have reflected on the many years of my involvement with ASCE and EWRI. I first got involved in ASCE early in my educational career while pursuing my first engineering degree in college. Immediately after graduating and accepting a professional career, I became involved in the local chapter through participation in monthly meetings. Approximately 20 years ago, I became involved at the national level with EWRI because of an invitation from a professional colleague to be part of a committee preparing a special edition for the Journal of Hydraulic Engineering on Teaching Hydraulic Design. Since that initial invitation, I have held numerous Task Committee, Technical Committee, and Council positions. Each of these opportunities to serve has benefited me in a variety of ways throughout my career. In this, my first President’s Column, I want to share with you a few of the ways my professional career and personal life have been enhanced by my active participation in EWRI. Like many of you, I have also been involved in several other professional organizations. Through my experiences in these other professional organizations, I have gained an important perspective of the unique role EWRI plays in the professional community. Many professional organizations provide a means to network with potential clients and identify job opportunities. This often creates a situation of competition among professionals rather than collaboration. However, EWRI provides a unique setting that is collaborative between academia, consulting, municipal, state and federal agencies. This is a powerful way to bring us all together in promoting our vision of “advancing water resources and environmental solutions to achieve a sustainable future”. I have appreciated this collaborative culture to work closely with those who might otherwise be competitors. The opportunity to
PRESIDENT’S MESSAGE collaborate with other professionals has been a benefit of my membership in EWRI. I worked for several years in private consulting, then went into academia for several years, and then returned to private consulting. This varied career experience has emphasized to me the importance of the specific individuals with whom you associate, collaborate, and look to as mentors. These individuals will have one of the greatest impacts on your opportunities for success and job satisfaction. My participation in EWRI has helped me broaden my network with a vast variety of professionals from different technical areas and geographic locations. My association with these professionals is a valued benefit of my membership in EWRI. My involvement in EWRI as a young professional gave me a variety of leadership opportunities that were not as readily available to me early in my regular employment. Through numerous committee and council leadership opportunities, I could practice and refine my communication, interpersonal, and presentation skills. These are important skills to be successful in a professional career. Though I found ways to develop these skills through my employment and community activities, EWRI gave me an accelerated path to take on significant leadership responsibilities in a safe environment with many professionals who had significantly more experience than me. The numerous opportunities to refine my leadership skills have clearly been a benefit of my membership in EWRI. I am proud to be part of the engineering profession. My engineering career has provided me with rewarding opportunities to solve unique problems across the world. This has been fulfilling in a variety of ways. Because of this, I feel a commitment to give back to the profession and promote these opportunities for the next generation. EWRI has been a great avenue for me to reach out to youth and young professionals regarding the rewards of a career in engineering. EWRI has provided me a zone of influence far beyond my current employment or the city in which I live. Significantly expanding my reach in promoting the profession to the next generation has
www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
been a direct benefit of my membership in EWRI. One of the greatest needs facing our growing population is the availability of clean water, sanitation, and efficient use of our resources to enhance the well being of the global community. As a single individual, the ability to address this seems daunting. However, teamed with the over 23,000 members of EWRI, I feel empowered to help respond to these needs. The satisfaction that I can help make a difference in solving these problems is another benefit of my membership in EWRI. In closing, I would like to summarize some of the benefits to me from my membership in EWRI. It has provided me numerous opportunities to collaborate with other professionals and to associate with leaders and experts around the world. My EWRI membership has helped me refine my leadership and interpersonal skills, promote the profession to the next generation, and it has empowered me to contribute in a meaningful way in solving some of our most important world problems. I enjoy these many benefits simply because a colleague invited me 20 years ago to help him on a task committee. As we look to the future of our profession and EWRI, I hope each of you will consider the many benefits your membership in EWRI has provided you and then decide to invite a colleague to join us in this rewarding journey. Kevin Nielsen EWRI President 2019
EDITOR’S CORNER We have an exciting balance of articles in this edition of the Currents newsletter. Jenn Jacyna, Manager EWRI, provides an enjoyable article on her scuba diving experiences, including diving in the Atlantic Coral Reef Exhibit at the Baltimore Aquarium. We have an informative technical article on the development of brackish water supplies in Central Florida. Our Government Relations Update provides information on recent legislation, including the Senate bill on LowIncome Water Customer Assistance Program (LIWCAP) Act, and the Executive Order on Resiliency, signed by the Governor of Virginia in November 2018. The ASCE-EWRI/AFS-BES (American Fisheries Society-Bioengineering Section) discusses their attendance at the 2018 Fish Passage Conference in Australia. Jerry Rogers provides an informative article on the waterworks and ironworks history in Pittsburgh and the EWRI 2019 History Symposium with six varied sessions. Finally, EWRI President Kevin Nielsen has prepared an inspiring President’s Message on the benefits of EWRI membership and how it has helped him in his career. Please plan to attend the national EWRI Congress in Pittsburgh in May 2019. Also, as a reminder, we accept article submissions throughout the year for inclusion in this quarterly newsletter. Please reach out to me or Jennifer Jacyna, Manager of Members Services for EWRI, for more information on contributing to Currents. Please enjoy this edition of Currents, and we look forward to seeing you at the national EWRI Congress!
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ASCE Government Relations Update Natalie Mamerow, Senior Manager, Federal Government Relations, ASCE October 2018 America’s Water Infrastructure Act of 2018 The President signed the America’s Water Infrastructure Act of 2018, S. 3021 (also known as the Water Resources Development Act – or WRDA – of 2018) on October 23, 2018 (PL 115 – 270). Congress passed the bill by a vote of 99-1 in the Senate and by voice vote in the House. Last May, ASCE’s 2018 President Kristina Swallow testified before the Senate Environment & Public Works Committee on the importance of long-term, strategic investment in America’s water resources systems—which was a key issue at ASCE’s March 2018 Legislative Fly-in. The passage of this bill would not have been possible without the incredible advocacy of ASCE’s members over the course of the past year, with over 1,600 emails sent to over 320 congressional offices. The final legislative language contains many of the provisions that ASCE championed, including three of ASCE members’ “asks” during our Fly-In: reauthorization of the National Levee Safety Program and the National Dam Safety Program, as well as authorization of the Securing Required Funds for Water Infrastructure Now (SRF WIN) Act— a new financing vehicle for drinking water and wastewater infrastructure projects. Read more about WRDA.
November 2018 Low-Income Water Customer Assistance Program (LIWCAP) Act ASCE endorsed the Low-Income Water Customer Assistance Program (LIWCAP) Act, S. 3564, which was introduced by Senator Ben Cardin (D-MD) and Senator Roger Wicker (R-MS). This bill seeks to address water affordability challenges across the nation through the creation of a pilot program to assist residents in rural, urban, small, and large communities by paying their drinking water and wastewater bills. This program ensures affordability and allows utilities to set appropriate rates to maintain infrastructure and meet federal regulations. Data generated by pilot programs will be used to inform discussions of a broader assistance program. ASCE supports this bill because it dedicates federal dollars so that communities in need can make investments in critical drinking water and wastewater infrastructure. ASCE’s 2017 Infrastructure Report Card gave our nation’s drinking water infrastructure a grade of “D” and our wastewater infrastructure a grade of “D+.” The disparity between needed and anticipated funding for drinking water and wastewater systems by 2025 is estimated to be $105 billion. Midterm Elections Infrastructure investment was again a theme on ballots in many states during the 2018 election season. ASCE supported a number of these measures with its position prevailing in California, Connecticut, and Rhode Island. Rhode Island’s Proposition 3 approved $47.3 million bonds for environmental, water and recreational projects. This measure allocates the overall bond amount into a number of project areas, including $7.9 million for water quality and drinking water infrastructure, $5 million for wastewater treatment, $4 million for brownfield remediation, and $4.4 million directed to dam safety projects. Read more. State Executive Orders on Resiliency Virginia Governor Ralph Northam (D) signed an executive order to increase the state’s resilience to sea level rise and natural hazards. The executive order (EO) directs the development of a “Coastal Resilience Master Plan” to protect the state’s coastline. This EO also creates a series of reviews and planning efforts to benefit citizens, local governments, regions, public, and private property, such as reviewing state compliance with dam and floodplain management laws and all state pre-disaster hazard mitigation programs. Additionally, the EO provides guidance for local governments on how to build and plan more resiliently. As advocates for policies that reduce risk, protect public health, and maximize the public interest – including cost considerations and resilient designs – ASCE has been supportive of efforts that achieve this goal. www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
North Carolina Governor (Gov.) Roy Cooper (D) signed an EO setting a state goal of cutting its greenhouse gas emissions by 40% by 2025, adhering to the 2015 Paris Agreement environmental treaty from which the United States withdrew last year. It also calls for the state’s Department of Transportation to accelerate a plan to expand the use of zero-emission vehicles to at least 80,000, and for the reduction of energy consumption per square foot in state-owned buildings by at least 40% from 2002-2003 levels. On the heels of Hurricanes Florence and Michael, Gov. Cooper stated, “With historic storms lashing our state, we must combat climate change, make our state more resilient and lessen the impact of future natural disasters.” GAO Releases New Report on Inland Waterways The U.S. Government Accountability Office (GAO) released a report entitled, “Inland Waterways: Actions Needed to Increase Budget Transparency and Contracting Efficiency.” The report is an assessment of how the U.S. Army Corps of Engineers (USACE) allocates funds for operations and maintenance for our nation’s inland waterways infrastructure, which received a grade of “D” in ASCE’s 2017 Infrastructure Report Card. The report found that the USACE faces higher costs and delays because of the partial project funding it receives during the congressional appropriations process each year. Because of the piecemeal procurement process, this approach results in increased project costs. The report makes two recommendations: The USACE should define and measure deferred maintenance for inland waterways and pursue changes to use construction funds more efficiently. Report Card for Pennsylvania’s Infrastructure Highlights Progress and Challenges The Pennsylvania State Council, representing the Central Pennsylvania, Lehigh Valley, Philadelphia and Pittsburgh Sections of ASCE, released the 2018 Report Card for Pennsylvania’s Infrastructure. Pennsylvania earned a cumulative GPA of a “C-,” which was the same grade the state earned four years ago. The Report Card found that while recent increases in transportation funding have led to measurable improvements, water categories continue to struggle, and there is a significant funding gap between dollars spent and need. In addition to assessing infrastructure, the report made several recommendations of how to raise the grades. Read More. Trump Administration Releases Eye-opening National Climate Assessment The Trump Administration released the Fourth National Climate Assessment, a report that is mandated by Congress to be released every four years. The Assessment is produced by 300 scientific experts under the guidance of a 60-member federal advisory committee. ASCE is a champion of measures that ensure our nation’s infrastructure is resilient to withstand the most extreme climate events. Read More.
December 2018 ASCE Seeks Your Comments to the WOTUS Proposed Rule On December 11, U.S. Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers (USACE) released a proposed rule to alter definitions under the Waters of the U.S. (WOTUS) existing Obamaera rule. This proposed rule redefines the scope of the federal government’s jurisdiction over waters covered by the Clean Water Act. ASCE submitted public comments during the proposed rule process in 2014, and many of ASCE’s suggested substantive changes were included in the final 2015 rule. This week, ASCE sent a letter asking for an extension to the 60-day comment period. ASCE’s government relations division is reviewing the detailed regulatory proposal, but we need your help. We urge you to participate in this process and make your voice heard! Please send us your comments by February 15, 2019. Montana & Nevada Report Cards Show Improvement In the 2018 Report Card for Montana’s Infrastructure, ASCE’s Montana Section assessed the 10 of the state’s infrastructure systems and gave the state an overall GPA of a “C.” The 10 categories individually evaluated in the report were bridges, drinking water, dams, energy, rail, roads, schools, solid waste, stormwater and wastewater. Recommendations to raise the grades include increasing infrastructure investment, exploring innovative funding solutions, and building resilient infrastructure to prepare for the state’s growing and changing population. Additionally, the Nevada Section released the Nevada 2018 Infrastructure Report Card. Twelve categories were assessed and earned an overall grade of a “C,” increasing from a “C-” in 2014. Categories that
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saw grade increases from four years ago include: aviation, bridges, roads, transit, and schools. Drinking Water Study Demonstrates Funding Needs The Association of State Drinking Water Administrators (ASDWA) released a report entitled, “Beyond Tight Budgets: 2018 Resource Demands Analysis for State Drinking Water Programs.” The report addresses the challenges facing the nation’s public water systems. The study determined that increased funding is needed for state drinking water programs to meet their demands and fulfill their duty to protect the public health.
January 2019 116th Congress At Noon on January 3, 2019 the 116th Congress took office. The new House includes 235 Democrats and 199 Republicans, with one race still outstanding. Representative Nancy Pelosi (D-CA) was elected Speaker of the House with Representative Steny Hoyer (D-MD) as Majority Leader. Minority Leader Kevin McCarthy (R-CA) will lead House Republicans. On the Senate side, Republicans will expand their Majority by from 51 to 53 seats and will continue to be led by Majority Leader Mitch McConnell (R-KY). The Democrats will have 45 seats (with 2 independents caucusing with the Democrats) for a total of 47 seats and will continue to be led by Minority Leader Chuck Schumer (D-NY). ASCE President Calls for Action on Infrastructure in 2019 In a Letter to the Editor to the Wall Street Journal, ASCE President Robin A. Kemper, P.E., LEED AP, F.ASCE, F.SEI, responded to an Op-Ed (subscription required) from the previous week, which criticized the Senate Democrats’ infrastructure proposal last year. Kemper touted the fact that both President Trump and the new House majority are discussing plans to work on infrastructure. She stressed that the time is now to develop concrete solutions to fix our roads, bridges, transit systems, water networks, and other infrastructure. Read More. Federal Shutdown Impacts Infrastructure Programs Since the partial government shutdown began in December 2018, infrastructure projects across the country are being directly impacted. Many key Cabinet-level departments and select agencies responsible for our nation’s infrastructure are not fully operational, which affects our nation’s roads, bridges, parks, and transit systems, as new projects cannot get started and current projects are put on hold. Read more. NIBS Releases Study on Value of Mitigation The National Institute of Building Sciences (NIBS) unveiled two key reports: Natural Hazard Mitigation Saves: 2018 Interim Report and Moving Forward: Findings and Recommendations from the Consultative Council. These reports are multi-year studies on the benefits of investing in hazard mitigation. The 2018 Interim Report highlights the significant savings that result from implementing mitigation strategies – specifically $11 saved for every $1 invested. The Moving Forward Report addresses ways to improve the performance of the nation’s existing building stock, providing a starting point for a much broader dialogue across the building industry and with policymakers. Washington Grades Show Some Improvement in the New Year ASCE’s Inland Empire, Seattle, and Tacoma-Olympia Sections released the 2019 Report Card for Washington’s Infrastructure, grading nine individual infrastructure categories. Overall, the state received an overall grade of a “C,” which is the same grade the state received in 2013. The Report Card categories included aviation, bridges, dams, drinking water, roads, schools, stormwater, transit, and wastewater. School and transportation infrastructure categories saw improvement from the previous assessment. To continue improvement, ASCE recommends Washington takes a leadership role in building environmentally sustainable and resilient infrastructure to prepare for natural disasters. ASCE also recommends leveraging sustainable loan programs, using the state’s Public Works Trust Fund to modernize infrastructure, and balancing the needs of both rural and urban communities. Read More.
www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
Early Pittsburgh Waterworks and Ironworks and the EWRI 2019 History Symposium Jerry Rogers, Ph.D., P.E., D.WRE, Distinguished M.ASCE Dave Wright, Allegheny County, provided an 1830 Pittsburgh map (MAP OF PITTSBURGH AND THE ENVIRONS), done by a bank with the following early waterworks history. The 1830 Pittsburgh map contains notes on the water system. A steam pump pumped water to a basin shown on the map at the intersection of Grant Street and Fifth Avenue. In 1828, Pittsburgh acquired the high- pressure steam engine of 84 horsepower to pump water 116 feet above the Allegheny River. The main pipe was 2,439 feet in length and 15 inches diameter, pumping 1,500,000 gallons water per 24 hours. The basin receiving the water was 11 ft. deep and could hold 1,000,000 gallons of water. In 1830, Pittsburgh already had 10 foundries (producing 5,339 tons/year) and 8 rolling mills, iron works with nail factories attached (producing 7,950 tons/year with 2,805 tons of nails/year). The production of steel started after William Kelly’s 1857 patent and the similar Bessemer process in England. The 1830 Pittsburgh foundries included the two largest: McClurg & Co. and Kingsland Lightner & Co., and Freeman & Miller, Cuthbart & Co., Sours & Cooper, Bausman, Warden, Arthurs & Co., Hartman & Co., Evans & Stevens, and Evans. The rolling mills & iron works with nail factories attached all used large steam engines of 60 to 120 hp and were Mason, Millenberger & Co., Shoenberger & Son, Schoenberger & Parkland, Barnet & Shorh, Blake & Co., Bowen, Leonard, Semple & Leonard, and Union Rolling Mill Co. After the large-scale production of steel in the 1860s or so, Pittsburgh became known in the U.S. as THE STEEL CITY. The EWRI 2019 History Symposium has six varied sessions, including a 10:30 a.m. - 12:00 p.m. May 21 Canals Session with: “Western Pennsylvania Historic Canals (from Pittsburgh Section ASCE Centennial Book,)” David L. Wright, P.E., Allegheny County Public Works Department, 501 County Office Building, 542 Forbes Avenue, Pittsburgh, PA 15219, (412) 350-6645 Dwright@alleghenycounty.us and a Pittsburgh Outstanding Engineers Session with: “Edward Manning Bigelow (1850-1916), Known as the Father of Pittsburgh’s Parks,” Jerry Rogers, Ph.D., P.E., D.WRE, Distinguished M.ASCE, 12127 Old Oaks Dr., Houston, TX 77024 (713)468-6170 rogers.jerry@att.net, Retired Professor Emeritus, University of Houston, and “William Kelly (1811-1888)- Pittsburgh Engineer and Henry Bessemer on Steel Making,” Jerry Rogers, Ph.D., P.E., D.WRE, Distinguished M.ASCE.
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The Atlantic Coral Reef Exhibit: Diving a Little Piece of Paradise, in Baltimore Jenn Jacyna, Manager, EWRI Perhaps it’s fitting that an employee of ASCE, specifically the Environmental and Water Resources Institute, would have a passion for water. In fact, I’ve been swimming since I was barely three and jumped into a pool during a mommy-and-me swim class out of excitement (not realizing at such an age that I didn’t know how to swim.) Since then, I’ve been completely captivated by what the underwater world has to offer. So much so that in 2012, I decided to pursue scuba diving. The bulk of my scuba career has been in high turbidity and low visibility lakes and quarries. These environments provide excellent training opportunities, since if you can dive in only 52 degrees and three feet of visibility, you can dive anywhere! However, most divers don’t embark on this sport with the hope of coming across a murky, sunken school bus, or if you’re lucky, the occasional bass or trout. You learn to dive because you love the conservation efforts, you want to
encounter the wide array of tropical marine life that the ocean has to offer, and you desire to witness, up close, something that most will only see in photographs. Having since experienced diving in the best of conditions, I can say unequivocally that seeing ocean life in all its forms, from ostium to sea turtles, to sharks in their native habitat is nothing short of addictive.
On my latest diving adventure, I set out for the Baltimore Aquarium. Having recently learned that you can visit the aquarium via their Guest Diver Program and dive in an exhibit, it became an instant bucket list item. The Atlantic Coral Reef exhibit, home to more than 500 unique species, boasts 335,000 gallons of approximately 76-degree saltwater. I learned that the Baltimore Aquarium makes its own saltwater for its exhibits using Baltimore City water, and a proprietary blend of food-grade salts created by the aquarium’s chemist. These salt compounds affect pH, dissolved oxygen, and water hardness, so every exhibit has its ammonia, nitrite, salinity, alkalinity, and pH tested daily, in order to imitate natural ocean water as closely as possible. Diving in such an enclosed climate requires near perfect neutral buoyancy; divers control this with proper breath control and accurate weighting, with the goal of neither sinking nor rising. Saltwater results in increased diver
www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
buoyancy; for example, I carry an additional eight pounds of extra weight to dive in a freshwater quarry but need 10 pounds when I go to the Florida Keys. Divers also must consider the type of tank they’re using, and weight themselves appropriately to offset the change in tank buoyancy as air is used. Scuba tanks are made of either aluminum or steel, although your average dive facility will most likely use aluminum tanks as aluminum is less expensive than steel. Despite steel weighing more than aluminum, an aluminum tank of the same size will weigh more. Since aluminum is a softer metal than steel, more aluminum must be used to craft the tank so that it can withstand the same pressure at depth as a steel tank. The decision to use aluminum or steel tanks will also affect your buoyancy. As air is used from an aluminum tank, the tank will become more buoyant, and the diver could be more likely to float towards the surface. Conversely, as air is used from a steel tank, the tank becomes more negatively buoyant, and the diver could be more likely to be pulled down. The aquarium uses steel tanks, so this was an exciting first. Negative buoyancy wasn’t particularly a concern of mine since the exhibit is only 13 feet deep, so even if I was pulled down, I could only go so far before hitting the shell and coral floor. But the weight. Oh, the weight! Due to the high salinity of the exhibit, I packed an additional two pounds to my weight pack at our guide’s recommendation. Compounded with the steel tank, I went down like a ton of bricks, with barely enough time on the descent to equalize my ears. Side note: you start needing to equalize your ears as shallow as a foot or two down!
An added challenge to already being (in hindsight) over-weighted was the lack of current. Even in a quarry you’re likely to experience some sort of minor current, even if it’s just some light wind on the surface. In the ocean it’s even more pronounced and on some dives, I’ve barely even had to kick, instead relying on the ocean’s natural current to carry me along. Not so at the aquarium! There is zero current in the highly monitored, man-made environment thus resulting in the need to really “work for your dive” to propel yourself through the exhibit. This new experience of exhibit diving, that lets one dive and interact alongside six-foot tarpon, bonnethead and blacknose sharks, spotfin porcupine fish, and Felix the green moray eel, is completely unparalleled. It was dizzying and surreal to be in an enclosed, controlled environment. Maybe even more fun than looking at the fish was looking through the glass at the other aquarium guests waving on the other side. In fact, one little girl, upon noticing our pink gear, commented to her mother “Mommy! Those are girls! Girls can dive, too!”
We’re in an age where sustainability and conservation are vital. In this conscientious diver’s opinion, the Baltimore Aquarium is an excellent organization promoting environmental awareness with its programs of study, conservations efforts and donations, and educational resources. If you’re ever in the area, I highly encourage stopping by the aquarium, waving to its divers (trust me, it’ll make their day), and maybe even learning more about this remarkable sport.
Have a story you’d like to share with the EWRI community? Consider submitting to Currents!
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Developing Brackish Groundwater Supplies In Central Florida: Polk Regional Water Cooperative Southeast And West Wellfield Projects Robert G. Maliva1, Scott Manahan1, Gene Heath2, Ryan Taylor2,Mary Fickert Thomas3, Michael Simmons3 WSP USA Inc., 1567 Hayley Lane, Suite 202, Fort Myers, FL 33907 Polk Regional Water Cooperative 3 WSP USA Inc., 301 E Pine St, Orlando, FL 32801 1 2
ABSTRACT The heavily populated areas of Central Florida have nearly reached their limits of permittable traditional, fresh groundwater, and utilities are now forced out of necessity to seek alternative sources of water to meet growing demands. The development of sustainable long-term water supplies is often beyond the financial resources of individual utilities, particularly those serving smaller communities. The Polk Regional Water Cooperative (PRWC) was established to proactively identify AWSs that would ensure the future sustainability of the region’s water supply. The PRWC is overseen by its 16 member governments, which include 15 cities and Polk County. WSP USA, Inc. was contracted by the PRWC, who is partnering with the Southwest Florida Water Management District (SWFWMD) to investigate various AWS options in Polk County. The three main AWS projects chosen as best meeting the PRWC future requirements are two brackish groundwater desalination facilities, designated the Southeast (SE) and West Polk Water Treatment Plants (WTPs), and the Peace Creek Integrated Water Supply project. The two desalination plants will utilize the LFA as a raw water source and will have the potential to deliver a combined finished-water capacity of approximately 45 million gallons per day (MGD), making the WTPs the largest brackish RO system in central Florida. In October 2017, PRWC approved a contract with TeamOne, led by Carollo Engineers and consisting of a number of subconsultants, for Phase I of the AWS project, which includes test well programs, and conceptual and preliminary design of the wellfields and treatment plant facilities. Florida Drilling was contracted to construct the test wells. Fundamental design issues for the two plants include a prediction of long-term raw water quality from the LFA and designing the production and injection well systems to prevent significant recycling of concentrate into the production wells. Test wells programs are underway at both sites and include construction of LFA test production wells and monitoring wells. A number of brackish groundwater reverse osmosis (RO) or other membrane facilities in Florida have experienced more rapid increases in salinity over time than predicted, which in some instances has impaired the membrane treatment processes. Detailed aquifer characterization and numerical groundwater modeling are key to developing a reliable raw water supply. Density-dependent solute-transport (e.g. SEAWAT) models have been developed to evaluate whether potential wellfield designs have fatal flaws as far as potential excessive increases in salinity over time and concentrate recycling. Conceptual model and parametric uncertainty will be evaluated through a sensitivity analysis and the likely range of future water qualities determined. In accomplishing this task, the PRWC will both contribute to providing member governments with a sustainable and reliable water supply and provide a template for similar future projects in central Florida. INTRODUCTION The strong economy and concomitant ongoing rapid population growth in Central Florida has greatly stressed its primary water source, the Upper Floridan Aquifer. The population of Polk County is projected www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
to increase from an estimated 592,082 in 2015 to 789,760 in 2035 (CFWI 2015). The Central Florida Water Initiative (CFWI) is “a collaborative water supply planning effort among the state’s three largest water management districts, the Florida Department of Environmental Protection (DEP), the Florida Department of Agriculture and Consumer Services (DACS) and water utilities, environmental groups, business organizations, agricultural communities and other stakeholders” (CFWI 2018). According to the 2015 CFWI Regional Water Supply Plan (RWSP), the current average total water use is about 800 MGD in the CFWI planning area and an additional approximately 300 MGD of water supplies will be needed by the year 2035. An estimated 50 MGD of additional fresh groundwater reportedly can be made available through management strategies, such as changes to wellfield operations and increases in aquifer recharge, with the remaining 250 MGD having to be met through expanded water conservation and other alternative sources (CFWI 2018). South Florida utilities have turned to reverse-osmosis (RO) desalination of brackish groundwater as their primary alternative water source (AWS) because conditions in these areas are particularly favorable for the implementation of this technology. Abundant brackish groundwater resources are available in the Upper Floridan Aquifer in South Florida and, to a lesser degree, also in the Intermediate Aquifer System in southwestern Florida. An extraordinarily transmissive injection zone, the so-called “boulder zone” of the Lower Floridan Aquifer (LFA) is present that can be used to efficiently and economically dispose of the desalination concentrate. Another high transmissivity zone, the Avon Park Permeable Zone (APPZ), is suitable for concentrate disposal in the Tampa Bay region. AWS options in Central Florida are more limited because of its inland location and local hydrogeological conditions. Surface water is an AWS option, but it has the limitation that excess surface water supplies are typically available only during the wet season. Year-round use of surface water would require large-scale storage of captured and treated wet season flows in reservoirs or aquifer storage and recovery (ASR) systems for dry season use. Brackish groundwater development in Central Florida has been much more limited to date because brackish groundwater resources that are hydraulically isolated from the overlying freshwater UFA occur at relatively great depths (and are thus more expensive to utilize) and potential injection zones are less well developed than in areas further to the south. SOUTHEAST AND WEST WTPS WELLFIELDS A fundamental design issue for the SE and West WTPs is prediction of long-term raw water quality from the LFA. Raw water chemistry needs to be known both at the start of system operation and 20 to 30 years into the future. Limited existing data are available on the hydrogeology of the LFA in Polk County, and central Florida in general. A deep exploratory well (SE-DEW) program was completed near the southern end of the proposed SE WTP wellfield (Figure 1) in 2010 (PBS&J 2010). The proposed SE WTP production wells will be located along Boy Scout Camp Road between CR-630 and FL-60. As part of Phase I, a deep LFA test production well (SE-TPW), a LFA monitoring well (SE-LFA), a UFA monitoring well and a water table aquifer monitoring well are being constructed and tested near the north end of the proposed wellfield. The WTP and deep injection well system are planned to be located at the SE-TPW site. The basic hydrogeology of the SE WTP vicinity is presented in Figure 2. The main productive freshwater zone is the APPZ. The APPZ is underlain by a thick succession of anhydrite-bearing dolomites that form Middle Confining Unit II (MCUII). The LFA extends from the base of MCII to the top of anhydritic dolomites of the Cedar Keys Formation, which constitutes the Sub-Floridan Confining Zone. The LFA contains two more relative high transmissivity intervals separated by low permeability intraaquifer confining units. The conceptual plans for the SE WTP is to obtain raw water from the upper part of the LFA (Zone II) and inject the RO concentrate into a deeper zone located below the base of the Underground Source of Drinking Water (USDW). A USDW is defined as a non-exempt aquifer that contains less than 10,000 mg/L of total dissolved solids.
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Figure 1. Site location map
The basic hydrogeology of the SE WTP vicinity is presented in Figure 2. The main productive freshwater zone is the APPZ. The APPZ is underlain by a thick succession of anhydrite-bearing dolomites that form Middle Confining Unit II (MCUII). The LFA extends from the base of MCII to the top of anhydritic dolomites of the Cedar Keys Formation, which constitutes the Sub-Floridan Confining Zone. The LFA contains two more relative high transmissivity intervals separated by low permeability intraaquifer confining units. The conceptual plans for the SE WTP is to obtain raw water from the upper part of the LFA (Zone II) and inject the RO concentrate into a deeper zone located below the base of the Underground Source of Drinking Water (USDW). A USDW is defined as a non-exempt aquifer that contains less than 10,000 mg/L of total dissolved solids. The main objectives of the test well program are to confirm whether suitable production and injection zones are present in the LFA and to obtain data on aquifer hydraulic parameters and water quality required for groundwater modeling and system design. If a suitable LFA injection zone is not present, then an alternative injection zone is a deeper, Upper Cretaceous unit, which would be a much more expensive option. Upper Cretaceous injection wells were constructed at the TECO site in southeast Polk County, approximately 22 miles south of Lakeland, and have injection casings set below the Sub-Floridan Confining Zone. A much less expensive option is to instead set injection casing in the lower LFA below the base of the USDW and drill an open hole into the Upper Cretaceous Permeable Zone I to increase connection to more transmissive injection strata. Figure 2. SE WTP wellfield hydrogeology diagram. The principal operational challenge encountered in some brackish groundwater desalination facilities in Florida has been unexpectedly greater increases in raw water salinity over time (Maliva et al. 2016). In some instances, the increase in salinity has impaired the membrane treatment processes and required the installation of additional production wells in order to add some less saline water to the raw water flow. Unexpected hydrogeological conditions allowed for rapid up-coning of saline groundwater into production wells as hypothetically illustrated in Figure 2. An additional challenge in central Florida is that there is less vertical separation between LFA production and injection zones, and therefore, wellfields need to be designed appropriately to prevent or at least minimize recycling of concentrate into production wells. Production wellfields must also not impact overlying freshwater aquifers and sensitive environments.
Density-dependent solute-transport modeling using the U.S. Geological Survey SEAWAT code (Guo and Langevin 2002) is a key tool for predicting future raw water quality at both the SE and West WTPs wellfields. A preliminary SEAWAT model was developed for the SE WTP wellfield using local hydrogeological data from the SE-DEW and regional data from the Southwest Florida Water Management District (SWFWMD) District-Wide Regulation Model (DWRM3). Initial simulations at a pumping rate of 37.5 MGD (15 wells at 2.5 MGD each) show that the raw water salinity (total dissolved solids concentration) will more than double after 30 years (Figure 3). www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
The greatest simulated increase in salinity occurs at the north end of the wellfield, near the proposed injection well system, and in the middle of the wellfield where the greatest cumulative drawdowns will occur The SEAWAT model will be progressively updated and refined to incorporate additional hydrogeological data obtained from the SE-TPW program. The rapid increases in salinity that occurred at some brackish groundwater desalination facilities in Florida was likely caused by adverse hydrogeological conditions (e.g., fracturing or otherwise compromising of confining strata) that were not evident in the initial testing. A key part of the groundwater modeling program will be a sensitivity analysis that evaluates the impacts of conceptual model and parametric uncertainty on future water quality. Multiple simulations will be performed using various values for aquifer hydraulic, water quality, and transport parameters to determine the envelope of potential future water qualities. A Lower Floridan Aquifer test well program and groundwater model are also underway for the West WTP site. The test well program will also include installation of an Lower Floridan Aquifer test production and monitoring well and the performance of an aquifer performance test. CONCLUSIONS Desalination of brackish groundwater has been widely implemented in South Florida as an AWS and is increasingly being considered elsewhere in the state. Implementation of brackish groundwater desalination has lagged in Central Florida because of the greater depths of brackish aquifers and more limited options for concentrate disposal. The PRWC brackish groundwater project is groundbreaking in Central Florida because it is a collective effort by numerous communities to achieve sustainable, longterm water supplies and the large capacities of the systems under development. A critical aspect of the project is to draw upon historical lessons of brackish groundwater development in Florida to design more robust and reliable RO treatment systems.
Figure 3. Modeled changes in salinity in production wells located at the south end (SE-1), middle (SE-7) and north end (SE-15) of the proposed SE WTP wellfield.
REFERENCES CFWI (2015) Central Florida Water Initiative. Regional Water Supply Plan 2015. A Comprehensive Plan for Orange, Osceola, Polk, Seminole, and Southern Lake Counties. CFWI (2018) Central Florida Water Initiative, Water for Tomorrow. https://cfwiwater.com/ (accessed 9/5/2018). Guo, W., and Langevin, C.D., 2002, User’s guide to SEAWAT: a computer program for simulation of three-dimensional variable-density ground-water flow. U.S. Geological Survey Open-File Report 01-434. Maliva, R.G., Barnes, D., Coulibaly, K., Guo, W., and Missimer, T.M., 2016, Solute-transport predictive uncertainty in alternative water supply, storage, and treatment systems. Groundwater, 54(5), 627-633. MWH (2013) Well completion report for Polk Power Station Injection Well IW-1 and Dual Zone Monitor Well DZMW-1 (June 2013). PBS&J (2010) Construction and testing report, Southeast Polk County Deep Exploratory Well Frostproof,Florida.
This paper was originally presented at the FL Section AWWA Fall 2018 Conference
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EWRI Fisheries Engineer Committee Members Attend 2018 Fish Passage Conference in Australia Kathy Hoverman, P.E., M.ASCE Over a dozen members of the ASCE-EWRI/AFS-BES (American Fisheries Society-Bioengineering Section) Joint Committee on Fisheries Engineering and Science attended Fish Passage 2018; the International Conference on River Connectivity held December 1014, 2018 in Albury, New South Wales (Twitter @FishPassage2018). This conference also included the First Symposium on Hydropower and Fish Management, which is very topical given that fish passage has been and continues to be a central component of hydropower design worldwide. This major international event offered over 360 delegates attending from over 30 different countries a fantastic opportunity to collaborate with colleagues and experience the unique wildlife and geography of New South Wales. The conference location was at the headwaters of the Murray River, the lifeblood of the largest river basin in Australia, and the first time for the conference to be held in the Southern Hemisphere. Conference technical sessions included: • • • • • • • • •
fish guidance and diversion screening, dam removal, river connectivity and fish passage, fish passage design, fish passage policy and management, hydropower and downstream fish passage, fish passage hydraulics and modeling, reconnecting with floodplains and wetlands, and many more.
Short courses and workshops were also offered at nearby Charles Sturt University. Each morning during the conference several keynote speakers gave their great perspectives on worldwide fish passage and fish migrations/river connectivity concerns. One keynote speaker included Associate Professor Aline Cotel of the Department of Civil and Environmental Engineering at the University of Michigan. Aline has an education in Aerospace Engineering so she was very well qualified to provide “A Fluid perspective on fish passage design and performance”. Another notable keynote speaker was Phil Duncan, a member of the Gomeroi Nation, Aboriginal Cultural Training Coordinator of Macquarie University. Phil gave a very meaningful and insightful talk about indigenous engagement and inclusion in fish passageway initiatives while focusing on his ancestral territories.
www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
Post conference field trips included: a trip through the North-eastern Victoria – A bus, a winery, some fishways and a brewery; the Murrumbidgee River Australian Animal Experience; an Overnight Outback Fish Screening and Passage Excursion; and a trip to the Upper Murray High Country with visits to the Snowy Mountain Hydroelectric Scheme. For a lucky few, guided fishing expeditions were also had including catching large Murray River cod, a species featured by Dr. Zeb Hogan, University of Nevada Reno fish biologist and National Geographic Explorer, in an episode of National Geographic’s Monster Fish. Zeb made a special trip to Albury and on one night of the conference provided a community lecture on many of his monster fish experiences along with rekindling his time with several of the fisheries enthusiasts in the audience for his Murray River expedition. The AFS-BES/ASCE-EWRI Joint Committee on Fisheries Engineering and Science sits under the Hydraulics and Waterways Council as the EWRI Fisheries Engineering Committee and was established with the goal of fostering continued communication and promoting joint fish passage efforts between multidisciplinary professionals, with the backing of both the American Society of Civil Engineer’s Environmental and Water Resource Institute and the Bioengineering Section of AFS. A steering group from the Joint Committee has been leading the Fish Passage conference since its inaugural 2011 conference in Amherst, Massachusetts. Members of the Joint Committee attending Fish Passage 2018 included Chair Kathy Hoverman, Vice-chair Kevin Mulligan, Secretary Amy Hunt, AFS-BES past president Mike Garello, AFS- BES current president Dana Postlewait, Guillermo Giannico, Matt Gordos (one of 3 conference organizers), Lisa Hollingsworth-Segedy, Jonathon Mann, Andy Peters, Marcin Whitman, and Laura Wildman. EWRI Hydrology and Hydraulics Council Past Chair, Blake Tullis, also attended and presented research at the Conference. Chair Kathy Hoverman had this to say about the conference: “The Fish Passage Conference once again was an amazing opportunity to connect with existing and new colleagues from around the world who have a shared interest in the advancement of technical and nature-like fishways, hydropower, stream restoration, and dam removal projects. The conference location is within Murray-Darling Basin, which embodies a diverse range of fish passage works and is home to an array of innovative solutions. The Organizing Committee did a wonderful job bringing together experts of diverse backgrounds and providing a venue that was accommodating and well resourced. Albury’s thriving arts culture, nightlife, and surrounding natural resources were enjoyed by many and it was wonderful to experience the exceptional and unique Australian hospitality!”
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While attending the conference the Joint Committee conducted a business meeting and a new members meeting to acknowledge the great accomplishments of the past year, plan for the next conference and other committee activities, and generally invite the interest and collaboration of others attending the conference. Other committee activities include some exciting upcoming webinars on fish passage, dam removal and river restoration. If interested in joining the committee or attending an upcoming webinar please see our website An important activity and group of the Joint Committee for each fish passage conference is to solicit proposals and present the Distinguished Project Award. The award acknowledges projects that use innovation and technical excellence to achieve ecological gain for fish passage, river connectivity and improved habitat for endangered and native species. This conference’s Distinguished Project Award was presented to “Fish Passage Research and Development at Low-head Barriers in South-east Asia”. As the project leader, Dr. Lee Baumgartner of Charles Sturt University received the award plaque and quickly acknowledged the large project team, many from Laos and that region (Myanmar, Thailand, Cambodia, and Vietnam) that were present at the conference and very proud to represent. The project and award recipients demonstrate a great collaboration among stakeholders and local communities, education and public involvement, ecological and fisheries subsistence gain for native species, and certainly inspirational value, all important criteria that the award task group and Joint Committee consider for the award. Fish Passage 2018 wrapped up with a lively conference dinner featuring local musical entertainment and grateful acknowledgements to the sponsors, conference organizers and hosts. On the last day the official handoff was made to the Fish Passage 2020 conference co-chair, Professor Antonio Pinheiro, University of Lisboa, to be held in Lisbon Portugal June 30 – July 2, 2020. There will not be a conference in 2019 due to the conference season timing (late spring/early summer) and the switching of location from the Southern Hemisphere back to the Northern Hemisphere. Join us then in Portugal!
www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
Upcoming Workshops Water Distribution Systems Modeling Using EPANET When: Thursday and Friday, February 21 & 22, 2019; 8:30 am - 5:00 pm Where: University of Nevada, Las Vegas, 4505 S. Maryland Pkwy., Las Vegas, NV Student Union Bldg. (https://www.unlv.edu/studentunion), Green Room A 2-day (14 hour) class on how to analyze and design municipal water distribution systems using the latest version of EPANET software. This software is available at no cost from the U.S. Environmental Protection Agency (EPA). About Class: The class is composed of 10 modules that include lectures, demonstrations, and hands-on exercises in a workshop format. The class is designed for engineers, planners and water systems operators ranging in experience from novice to experienced modelers and offers opportunities to learn how to use/apply this model, and to improve individuals’ skills. Instructors: Walter Grayman, PE, PhD, Consulting Engineer with over 45 years of engineering experience Arnold Strasser, PE, Denver Water (ret) with over 30 years of engineering experience in water systems, will provide the students with in-depth and practical knowledge about modeling, design, operation and analysis of simple and complex water systems. Learn more about this class and its instructors, for more information e-mail us.
Storm Water Management Model (SWMM) Workshop (sponsored by Austin EWRI Section, UWRI and NCIMM)
When: Thursday and Friday, January 31st and February 1st; 8:30 am - 5:00 pm Where: UT Center for Water and the Environment 10100 Burnet Road, Bldg. 119, University of Texas at Austin, Austin, Texas 78758 Phone: (512)471-0076 If you are a stormwater professional and are involved in management, planning and design, including: hydrology, assessment of impacts of urbanization and planning for Green storm water management and effectiveness of LID, etc., EPA's SWMM 5.1 software can make your job much easier and more productive. In this class you will learn how to use this model plan for and design stormwater management facilities and to assess how they function in storm water systems. Faculty: Robert Dickinson, ME is a well-recognized world's most accomplished and knowledgeable figures in the development and use of EPA SWMM. Robert (Bob) Carr has over 30 years of experience in water resources and stormwater management planning and engineering. He specializes in providing engineering and technical training services using advanced water resources software such as XP-SWMM, EPA-SWMM, XP-2D, Dambrk, InfoWorks, and Flow-2D. For more information about this class and the instructors and/or to register, go to the Class Website. For more information e-mail us.
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WORLD ENVIRONMENTAL & WATER RESOURCES CONGRESS Pittsburgh, PA | May 19-23, 2019
COMMITTEE MEMBERS
General Program Chair: Kemal Niksic, P.E. Technical Program Chair: Greg Scott, P.E. Technical Program Chair: Bill Hamilton, PH.D, PE
Join leading environmental and water resource professionals in the discussion “Resilient Infrastructure for a Changing Planet”
Local Arrangements Chair: Jason Baguet, P.E., M.ASCE Local Arrangements: Sarah Yeager, E.I.T Sponsorships Chair: Saki Handa, ENV SP Younger Member Chair: Maggie Chase Member at Large: Ben Briston
Resilient Infrastructure For a Changing Planet | visit ewricongress.org for more information www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
2019 EWRI CONGRESS PROGRAM HIGHLIGHTS KEYNOTE SPEAKERS
TECHNICAL TOURS
Monday, May 20 | 8:30 - 10:00 a.m. • • • • •
History & Heritage Boat Tour: History of Waterways and Bridges in Pittsburgh Triboro Ecodistricts (Etna/Millvale/Sharpsburg) & Green Infrastructure Workshop Phipps Conservancy Center for Sustainable Landscapes & Frick Environmental Center & Panther Hollow Lake Storage Retrofit Project ALCOSAN Plant Tour Net Zero Campus Design Charrette
SPECIAL EVENTS Dr. Michael Webber, Ph.D., University of Texas at Austin
• • Monday, May 20 | 12:15 - 1:45 p.m. • •
From Paris to Pittsburgh - Movie Screening Pittsburgh Pirates Baseball Game and Dinner AAWRE Professional Ethics Session AAWRE Expert Witness Session
TECHNICAL WORKSHOPS • • • Eliza Griswold New York University
• • • • •
Join us for Applied Practice Day Wednesday, May 22
Emerging Applications of Computational Fluid Dyamics in Water/Wastewater Treatment Industry How to Build Reliability in the Results of Numerical Modeling Introduction to the Hydrologic Modeling System (HEC-HMS) Misuse of HEC-RES for Bridge Scour Analyses & other Bridge Scour Resource Efficient Desalination & Zero-Liquid Discharge Systems Riverbank Filtration (RBF) Stormwater Management in a One Water Sustainability Framework The EFDC_EXPLORER Modeling System: A Tool for Teaching Environmental Hydrodynamics In A Numerical Modeling Framework
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OPERATION & MAINTENANCE OF STORMWATER CONTROL MEASURES CONFERENCE August 4-7, 2019 | Minneapolis, MN www.omswconference.org
CALL FOR SUBMISSIONS Conference Highlights:
• Advances in operation and maintenance of gray and green stormwater control infrastructure • Design for maintenance • O&M training programs • New maintenance approaches • Advances in municipal program management and implementation • Life cycle cost analysis • Lessons from the field www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
DEADLINE
January
31 2019
TOPICS AND TRACKS Design Considerations • Designing for maintenance & function • Addressing WQ (volume control), flooding, and aging infrastructure simultaneously • Design and maintenance specifications • Designing for maintenance & aesthetics • Data driven design, installation and maintenance • Reuse • Designing for inspectors/inspections • Cost and value of maintenance during design Decision Making • Considering O&M in decision making • Asset management • Establishing programs & institutionalizing O&M • Contracting and levels of service for O&M • Residuals Management • Estimating staff hours for O&M Costs • Calculating life cycle costs • Balancing aesthetics with O&M costs • True costs vs. perceived costs • Stormwater utility credits • Funding Mechanisms (public and private) Performance Aspects • Case Studies – lessons learned and celebrating success • Effective inspections and maintenance • Performance assessment/monitoring to guide maintenance • Construction inspection and testing Vegetation • Long term performance of vegetation • Vegetation maintenance • Vegetation establishment • Herbicides and natural weed controls • Plant pathology • Plant lists • Temporary irrigation
Climate Considerations • Climate resilience • O&M considerations for high precipitation events or years Cold Climates and Chloride • Cold climate risk management and chlorides • Chlorides impact on GI performance Training and Communications • O&M training and certification • Maintenance agreements and plans • Communicating/Working with private parties responsible for O&M • Communicating/Working with contractors • Communicating/Working with the public • Establishing maintenance and communications • Partnerships Equipment and Tools • Maintenance equipment ‐ jetting, vac’ing, street sweeping, confined space, etc. • Mobile technology During Construction • Right of way (ROW) management and utility coordination • Incorporating beneficial reuse materials during construction • Safety and Function during construction Underground, Filtration, and Active Systems • Maintenance and rehabilitation of underground devices • Filtration Systems • Active systems • Graphic design for O&M • Managing salt storage
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Your doctor is board certified, ARE YOU? Board certification tells your clients, potential clients, and the public that you have achieved the highest credentials in your field. Board certification places you above your competitors. Board certification is available in the career areas of: • Water Resources Engineering • Ports Engineering • Ocean Engineering • Navigation Engineering • Geotechnical Engineering • Coastal Engineering Requirements for certification: • Professional Engineering license in US (or equivalent) • Advanced Engineering degree (or 25 years experience) • Eight years post-licensure progressive specialty experience • Pass an oral exam administered by the specialty board (can be waived) • Pledge to abide by the highest ethical standards More information can be found online. Take the next step in advancing your career, get Certified!
Register now and Save at ASCE Week Panama ASCE Week features new and popular seminars in one location! Save up to $950 and earn up to 36 PDHs towards your license renewal. Attendees and their guests can also register for a technical tour of one of the modern wonders of the world, the Panama Canal! View the schedule and register.
Learn On Your Own Schedule! Guided Online Courses Use your phone, tablet, or laptop to watch videos, participate in discussion questions, and complete interactions to get the most out of your Guided Online Course. Save $300 with early bird pricing, check out the 12-week and 6-week winter course lineup now!
www.asce.org/ewri • EWRI Currents • Volume 21, Number 1 • Winter 2019
Featured Publications
Thank you to the EWRI Communications Council: EDITOR Catherine Soistman NEWS CORRESPONDENTS Irrigation and Drainage Council Robert Evans Watershed Council Jeff Rieker Hydraulics & Waterways Council Kit Ng Sustainability Task Committee Rick Johnson WR Planning & Management Tim Feather Environmental Council Wendy Cohen
The Environmental & Water Resources Institute (EWRI) of ASCE is proud to partner with the International Erosion Control Association (IECA), and we invite you to consider attending the IECA Annual Conference and Expo in Denver on February 19-22, 2019.
Standards Development Council Conrad Keyes Urban Water Resources Research Council Shirley Clark
The IECA Annual Conference and Expo brings together the Urban Stormwater Committee industry’s most innovative minds in the erosion and sediment control Christine Pomeroy and stormwater industry. Attend this one-of-a-kind conference and connect with thousands of colleagues from over 25 countries, Emerging & Innovative engage in cutting-edge educational sessions while earning Technology Council professional development hours, and access one of the largest expo halls in the industry. For more information visit the conference Sean McKenna website. 23