Go With the Flow Winter 2023/24

WINTER 2023/24

THE OFFICIAL PUBLICATION OF THE ATLANTIC CANADA WATER AND WASTEWATER ASSOCIATION

2023 ACWWA PM# 40065075 Return Undeliverable Items to: ACWWA, Box 28141, Dartmouth, NS B2W 6E2

CONFERENCE HIGHLIGHTS

INSIDE: • Emerging Leaders Committee Update • Variable Frequency Drives

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Go With the Flow is published four times yearly by the Atlantic Canada Water & Wastewater Association, Box 28141, Dartmouth, NS B2W 6E2. Copyright 2O24.

WINTER 2023/24

Atlantic Canada Water & Wastewater Association Box 28141, Dartmouth, NS B2W 6E2 Phone: 902.434.6002 Fax: 902.435.7796 contact@acwwa.ca www.acwwa.ca

Section Office

ACWWA Executive Director Clara Shea contact@acwwa.ca 902.434.6002 F: 902.435.7796

Board

Chair Jason Phillips, P.Eng. jphillips@stjohns.ca 709.576.8934 Past Chair Catherine Cameron scotiatech.main@ns.sympatico.ca 902.468.277 First Vice-Chair John Lam, P.Eng. john.lam@afnwa.ca 902.830.9646

TABLEof CONTENTS FEATURES

2023 ACWWA Conference Highlights

20

Our 2023 Award Winners

21

Emerging Leaders & WFP Update

25

2024 ACWWA Conference Announcement

26

All About Variable Frequency Drives

28

Back to Fundamentals: Partial Separations of Combined Sewers

31

Second Vice-Chair Vacant Secretary-Treasurer Rob Gillis, P.Eng. robg@halifaxwater.ca 902.497.1740 WEF Delegate (2020–2023) Dave Galbraith dave.galbraith@sansom.ca 902.895.0252 F: 902.893.7584 AWWA Director (2023–2026) John Eisnor, P.Eng. johne@halifaxwater.ca 902.209.2709

www.kelmanonline.com Tel: 866-985-9780 Fax: 866-985-9799 Managing Editor Design/layout Marketing Manager Advertising Co-ordinator

Monique Doyle Kiersten Drysdale Chad Morrison Stefanie Hagidiakow

DEPARTMENTS Message From the Chair

6

WEF Delegate’s Report

8

AWWA Director’s Report

12

Government Relations Director’s Report

14

Membership Corner

16

ABEA News

18

Advertiser Product & Service Centre

33

On the cover: Frozen stream running through farmland in rural Prince Edward Island. | dreamstime.com

Magazine Chair: Katherine MacCaull 902.450.4000 Ext. 5049 kmaccaull@dillon.ca

This document is printed on paper certified to the standards of the Forest Stewardship Council® (FSC®).

ON THE COVER: North shore sandstone cliffs of Prince Edward Island in January. © Verena Matthew

Winter 2023/24 |

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MESSAGE THECHAIR from

Jason Phillips, P.Eng. (City of St. John’s)

Building upon our success

I

would like to start off by saying thank you to the ACWWA Board for nominating me for a second term to be the Chair for 2023–24. The extension of my term will allow the association to implement some changes to the strategic planning process and continue to develop a successful business plan.

This past year has been very successful for the association. Our membership numbers have remained steady over the past few years, and we have returned to a profit thanks to the commitment of our members, vendors, and sponsors.

I would like to thank everyone for their continued support of our association.

In October we held the ACWWA annual conference and tradeshow in Charlottetown, PE; this event allows for sharing of knowledge and networking amongst other operators.

I would like to thank Richard MacEwen and his committee for hosting this year’s conference and making it a

“ I think everyone enjoyed the conference and reuniting with old colleagues while meeting new ones.” great success. I think everyone enjoyed the conference and reuniting with old colleagues while meeting new ones; this was evident by the great turnout for the ABEA social night at the Old Triangle Irish Alehouse. All events were well attended, and we received positive feedback on the conference program. Thank you to everyone who attended this event.

We have already started to plan for the 2024 Annual Conference and Tradeshow which will be held in Fredericton, NB, on September 22–24, 2024 – so, save the date! We are using the comments received from our survey to improve the next conference. Several responses

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indicated that attendees want to see more presentations from municipalities, hands-on solutions, and troubleshooting of various components for water and sewer infrastructure. This is something that we are hoping to include at the next conference; however, we need the support of our members. I encourage anyone who may have an idea for a presentation to submit an abstract when the Call for Papers is issued. If you are unable to submit an abstract but have a good idea for presentation, you can contact us at contact@acwwa.ca and we will forward the idea to our conference committee for consideration.

While the annual conference is the premier event for our association, we also offer a variety of learning opportunities throughout the year. We have partnered with BCWWA to offer online courses that are both self-paced and instructor led. This has been a great addition to our course offerings, allowing for more variety and improving access to learning opportunities for those who are unable to travel to in-person events. We encourage our members to submit topics for future training sessions; if there is sufficient interest in a particular topic then we can either develop a course or partner with another organization to offer the course. If you have any education topics that you would like for the association to consider, please send us a message at contact@acwwa.ca.

I look forward to working with the Board, committees, and all members over the next year to continue to build upon the success of our organization.

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WEFDelegate’sReport

Dave Galbraith (Sansom Equipment Ltd.)

Catching up with everyone

A

nd before you know it… snow is in the air, the weather is often freezing, and I must use the remote truck starter in the early mornings before getting behind the wheel. The clocks went back an hour on November 5 and winter will be here before we know it. Where did the summer and fall go?

The 96th anniversary of WEFTEC was held in Chicago September 30 – October 4. I believe there was record attendance and I noticed a lot of activity in the Exhibition Hall with many great products on display. The Technical Sessions were very well attended as well. It was great to catch up with all my WEF friends and our suppliers.

I attended several WEF Delegate Meetings on Saturday and Sunday. I chaired our first WEFMAX Committee meeting at WEFTEC for the 2024 season. 2024 will mark the 50th Anniversary of WEFMAX. The MA Host Cities in April/ May will be Old Town Alexandria, Virginia, Park City, Utah, and St. Petersburg, Florida. We also held our WEF CAC (Canadian Affairs Council) meeting at WEFTEC, where the chair and gavel were exchanged between Ontario and Western Canada MAs.

Many people attended the Canadian Ice Breaker Event on Sunday, October 1. It was almost like an old home event with so many familiar faces. I attended the WEFTEC General Opening Session where I met up with several people on the way into the main hall. I brought along a first-time WEFTEC attendee WEF President 2022–23 Alex Davis from AFNWA Ifetayo Venner (Atlantic First Nations Water Authority) and introduced him to some people I know.

It was a great way to start off WEFTEC.

WEF President 2023–24 Aimee Killeen

Canadian Affairs Council 2023–24

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Janet Hurley Cann, WEF Board of Trustees, and Alex Davis, AFNWA

I met up with many more WEF people that are very fond of their official visits to Atlantic Canada… too many to mention. They all praise the Atlantic Canadians.

The ACWWA Annual Conference was held in Charlottetown with glowing reviews. Hats off to Richard MacEwen and his team of Alex Davis, AFNWA & WEF volunteers that provided a Interim Executive Director, great event. It was beautiful Pat Nichols weather, so several of us took advantage of walking around the city after visiting a local watering hole. The Emerging Leaders Meet & Greet was very well attended and the Water Tower Building Competition was another highlight. The Trade Show had

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WEFDelegate’sReport

(L to R) Keith Hobson, WEF Vice President; Dave Galbraith (and Aimee Kileen, WEF President, who photobombed); Pat Nichols, WEF Interim Executive Director; and Robert Haller, CWWA Executive Director

(L to R) Dave with Nancy Sullivan, AWWA staff (photobombed by Aimee Kileen, WEF President); and Keith Hobson, WEF Vice President

a great cross section of suppliers and distributors. The Technical Sessions offered a wide range of topics. I heard great comments from several people afterwards saying it was one of the best they have been to.

I was honoured to be able to present the WEF 5S “Lobster” Shovel (Select Society of Sanitary Sludge Shovelers) to several people this year at the Opening General Session. The 5S is presented to WEF members for outstanding volunteering and service to their MA (Member Association). The ACWWA has adopted the lobster as our special identifier for Atlantic Canada. This is the most sought after and talked about 5S Shovel at WEFTEC each year.

The 5S Shovel is presented at our Annual Conference to our WEF and AWWA visiting dignitaries (included in the picture at the far right) as a special thank you. This year’s well deserving ACWWA WEF 5S Award member recipients are Amy Winchester (missing from photo), Michael Abbott, and our very special Emerging Leader, Photo credit: Lindsay Anderson Lindsay Anderson.

5S Award presentation in Charlottetown

“ The ACWWA has adopted the lobster as our special identifier for Atlantic Canada. The is the most sought after and talked about 5S Shovel at WEFTEC each year.”

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WEFDelegate’sReport

The Water For People 5K Fun Run was a little damp and chilly, but that did not stop these people from heading out. The WFP fundraising, led by the Emerging Leaders, raised just over $19,000. Fantastic support from our water family.

I trust each of you had the opportunity to pay your respects on Remembrance Day to our fallen comrades, our veterans who served in the past and our military personnel that serve today. I hope everyone has a healthy and safe upcoming holiday season visiting with family and friends. I will see you in the new year.

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AWWADirector’sReport

John Eisnor, P.Eng. (Halifax Water)

Our resiliency

F

rom an extreme weather perspective, 2023 was a challenging year for water utilities in Atlantic Canada. A cold snap in early February resulted in hundreds of frozen water services and burst pipes in the Halifax area. An abnormally dry spring set up conditions for significant wildfires in May that destroyed hundreds of homes and put several water supplies on high alert. This was followed by a very rainy summer and a major flooding event that hit Nova Scotia in July that washed out hundreds of culverts, flooded sewage lift stations and destroyed roads. Runoff from this event also increased raw water total organic carbon concentrations in lakes to levels not seen before, making treating the water more difficult. Finally, in September, Post-tropical Storm Lee made landfall in Atlantic Canada, resulting in widespread power outages and damage. Through all of these challenging events, the one common theme is the resiliency of utility managers and their dedication to ensure that water service is maintained. We should be proud as an industry in how we deal with this adversity.

In October, ACWWA held its annual conference in Charlottetown, PEI. The theme of this year’s conference was Building Resiliency – Protecting the Communities We Love, which is very relevant to the year that we

have experienced. Richard McEwen and his conference planning team did an excellent job putting on a topnotch conference this year. An underlying positive energy could be felt during the whole conference, which is a nice sign as we move on from the pandemic. We had the opportunity to host AWWA Past President Joe Jacangelo. Both he and his wife Margaret had a wonderful time visiting PEI and attending the conference.

AWWA continues to progress their Water 2050 initiative. Over the past year, five think-tanks were held on the critical drivers to the future of water: sustainability, technology, economics, governance, and social/demographics. In August AWWA released a consolidated summary report from the five think-tanks that outlines 47 recommendations across eight different themes. These recommendations will also help guide the development of AWWA’s 2030 Strategic Plan. This report along with other information on Water 2050 can be found at www.awwa.org/Resources-Tools/Water-2050.

Looking ahead, I will be attending the AWWA Winter Board meeting in Sedona, Arizona in January.

AWWA’s ACE 2024 will be held in Anaheim, California in June, so start giving some thought to attending this great conference.

“ Through all of these challenging events, the one common theme is the resiliency of utility managers and their dedication to ensure that water service is maintained. We should be proud as an industry in how we deal with this adversity.”

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GOVERNMENT RELATIONSDirector’sReport

Mike Abbott (CBCL)

Government Affairs Committee – Conference season in full swing

W

ith the 2023 ACWWA Conference recently successfully completed, a number of other events are approaching prior to the end of the year. The Charlottetown conference was a great event for

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| Winter 2023/24

technical development, networking, and all sorts of fun. Many of the Government Affairs Committee members were present and active delivering presentations, helping out with the conference organization, and even winning awards. The committee took advantage of having many of the members in one location to have an in-person meeting to discuss website improvements that we hope to have available early this year.

Next up were the CWWA National Water and Wastewater Conference (NWWC) and a meeting of the Canadian Affairs Committee (CAC) of the AWWA. These occurred a few weeks apart in

mid-November and early December.

The NWWC conference was in Niagara Falls and offered a wide-ranging technical program covering almost all aspects of the municipal water sector, while offering a great networking environment for Canada’s water leaders.

The program focus was on water and wastewater management including: • Utility management • Wastewater and stormwater management, case studies, and emerging contaminants • Drinking water management, monitoring, and outreach • Water efficiency programs, community outreach etc.

• Biosolids management • Utility security • Climate change and its impacts on the water and wastewater sector • Collaborative research between utilities and academic institutions The Canadian Affairs Committee of AWWA met at AWWA headquarters in Denver, Colorado on December 5 and 6. These meetings help to coordinate the efforts of the Canadian AWWA sections as they relate to government affairs at a national level.

They are held a few times a year and are particularly helpful to increase the impact of the smaller member associations in responding to national issues as part of the CAC instead of as an individual section.

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MEMBERSHIPCorner

Julie Stokes (ACWWA Membership Director)

Our winter membership wrap-up Welcome to the following new members:

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Name

Organization

Ashley Ward

Halifax Regional Water Commission

Membership AWWA

Geoff Norman

Town of Grand Falls-Windsor

AWWA

James Curtis

Atlantic Integrated Water Utility Consultants

AWWA

Kevin Walsh

Town of Annapolis Royal

AWWA

Dereck Avery

Atlantic Integrated Water Utility Consultants

AWWA

Gaetan Bourgeois

Cap-Acadie

AWWA

Frank King

Halifax Regional Water Commission

AWWA

Tareq Al-Zabet

Halifax Regional Water Commission

AWWA

Tiannie Paul

Atlantic First Nation Water Authority Inc.

AWWA

Justin Brimicombe

Town of New Glasgow

AWWA

Heather Cail

North Shore Micmac District Council Inc.

WEF

Brad McIlwain

Halifax Regional Water Commission

WEF

Meghan Lea

CBCL Ltd.

WEF

Sean MacIsaac

Dalhousie University

WEF

Chris Grove

Aquafix, Inc.

WEF

Dr. Shaik Mahaboob Subhani

NCPE Infrastructure India Private Limited

WEF

Mark Totten

J. D. Irving

WEF

| Winter 2023/24

As of November 5, 2023 Total AWWA active members: 433 Total AWWA late members: 21 Total active WEF members: 128 Total WEF late members: 1

Don't forget to refer a member, for a chance to win a $50 gift card of your choice.

This quarter’s winner was Dereck Avery from Atlantic Intergrated Water Utility Consultants.

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AWWA

Is the Sum of Our Members

Like droplets of water converging to create a powerful stream, our members have created the strong community that is AWWA. Together members are advancing public health by ensuring communities have access to safe and clean water. We thank each member for their dedication and celebrate their contributions to the water community.

We appreciate your continued support of AWWA.

awwa.org/member-appreciation2023

ABEANews

WWW.ABEA.BIZ

Thank you!

T

he support of our ABEA members allows us to continue providing premiere events as part of the ACWWA Annual Conference.

This year, in lieu of an attendee gift, the ABEA donated $5,000 to the Upper Room Hospitality Ministry (Foodbank) and presented Executive Director Mark MacDonald with a cheque during the ABEA Tuesday Evening Casino Event.

Thank you to all the participants in the Annual Golf Tournament – we had a great day and Mother Nature did her part, too!

Thank you to both the vendors and attendees for making the Trade Show the great success it was. We were SOLD OUT! Monday evening, despite the damp weather, we had great attendance at the ABEA Hospitality event held at the Old Triangle, where we were entertained on

two floors. What a wonderful opportunity to enjoy the company of both old and new friends.

The 2023 ACWWA Conference is behind us, but the planning is just getting underway for 2024 – to be held in Fredericton, NB. As we continue toward the new year, keep in mind that the ABEA continues to offer four x $1,000 academic scholarships annually to qualifying individuals (visit www.ABEA.biz).

Education is an ongoing process and our membership continues to find ways to assist their customers with creative delivery methods to keep them informed of changes in the industry. If you have a need, please feel free to reach out. We are certain that we have something to meet your needs on an individual basis, or we can create a program in conjunction with the ACWWA Education Team.

ABEA donation to Upper Room

Sold-out Trade Show

This year’s golf tournament

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ABEANews

2023/24 ABEA Host Suppliers Meet our ABEA members: Atlantic Branch Equipment Association

ADS Atlantic Purification Systems Ltd. Continental-Carbon Group Aqua Data Atlantic Avensys Atlantic Waterworks Birksco-Aqualoader Bibby Ste-Croix Chemline Plastics Canada Pipe Clow Canada Cambridge Brass Campbell’s Concrete DLR Piping Solutions Denyg Mechanical Everest Automation

EEP Technical Solutions Ford Meter Box Flowstar Ind. Gorman Rupp Greatario Storage Systems Galaxy Plastics HACH Hetek H2Flow HMS Networks Ipex Inc. Kemtag Enterprises Ltd. Engineered Pipe Group Magnor Maritime Infrastructure Technologies McLennan Sales (div. of EMCO)

Current ABEA Board: President – Martin Phinney – Canada Pipe Past-President – Matthew Manning – IPEX Vice President – Evan Macauley – Greatario Senior Director – Andrew Burgess – Flowstar Junior Director – Matt Leblanc – EMCO Junior Director – Adam Harley – EMCO Secretary/Treasurer – Kyle Gracie – EMCO Director-at-large – Catherine Cameron – Scotia Tech/Aqua Data

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Mueller Canada Westlake Pipe & Fittings (formerly Napco-Royal) Neptune Technology Group Nulantic Omnitech Pure Technologies Pro-Line Fittings Prominent Reed Mfg. Co. Robar The Panel Shop Star John Brooks ShadComm Ltd Sansom Equipment Sensus/KTI

SIP Industries Scotia Tech Saunders Equipment Sulzer SIGMA Corp.

Soleno Pipe Canada Inc. Veronics Veolia Water Solutions & Technologies WWOTC Wolseley Waterworks Atlantic Franklin Electric Xylem

Contact information for our members, and applications for our Scholarship and Grant Program can be found at

www.abea.biz

Winter 2023/24 |

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ACWWA 2023

CONFERENCE HIGHLIGHTS

T

he 76th Annual Conference of the Atlantic Canada Water and Wastewater Association was held October 15 to 17, 2023 in Charlottetown at the Prince Edward Island Conference Center.

Conference Chair Richard MacEwen and the host committee were delighted with the level of support for the event. The conference provided attendees with a wide range of networking opportunities, a strong technical program, and great ABEA tradeshow. Charlottetown loves to host conferences and it showed. The conference theme, “Building Resiliency,” was consistent throughout the conference program. The keynote address was brought to us

by Peter Nishimura, with the Federal-Provincial-Territorial Resilient Infrastructure Working Group. Peter shared his perspective on how to tackle the challenge of building infrastructure today in a changing climate. The keynote set the conference up for thoughtful technical presentations from many of our industries best and brightest.

Major award winners were recognized at our Opening General Session and the AGM luncheon. The Ira P. McNab

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award was presented to John Eisnor. Cathy Cameron was awarded the Bedell Award. A full summary of all award winners are included in this issue of Go With the Flow.

The City of Charlottetown took advantage of the home advantage and unseated the City of Miramichi by winning the “Best of the Best” tap water taste test.

Natoaganeg First Nation was awarded second place, and the Town of Three Rivers (Montague) was awarded third place. Thank you to our emcee Adam Ramsay and judges Bryan Carver, Cicerone and owner of Modern Brewer’s Village Green, Alyssa Dignard, award-winning chef, Amber MacRae, quality manager at Upstreet Brewing, and Robert Haller, Executive Director of CWWA and a seasoned water taste testing judge.

The ABEA/ACWWA Trade Show was a sold-out success.

The Trade Show is a highlight of every conference, and we were so glad to expand our familiarity with new and improved products and services.

Tuesday night entertainment saw Las Vegas come to Charlottetown with the ABEA Casino Night. Delegates enjoyed an evening of tasty PEI treats including local beef and oysters on the half shell, among many other delicious bites.

The 2023 ACWWA Conference Committee would like to thank all those who attended or contributed to the success of our conference. Thank you to our platinum sponsors, McWane Canada, CBCL, Greatario, exp, and Charlottetown SERF. A full list of our conference sponsors is included in this issue (see page 24) – this conference would not have been possible without your generous support. We hope you enjoyed Charlottetown! We’ll see you next year in Fredericton, NB.

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OUR 2023 SILENT HERO AWARDS

Award Winners

The Silent Hero Award is awarded by ACWWA and may be presented annually to recognize outstanding contributions of water and wastewater operators in each of the four Atlantic Canada provinces. Four Silent Hero awards may be given out each year – one award each for New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland & Labrador. The Silent Hero Award is presented to recognize outstanding contributions of water and wastewater operators in Atlantic Canada.

The following are this year’s recipients.

Nancy MacDougall Nancy has been an employee of the Municipality of the County of Colchester for 25 years. She has been there through the growth from one small facility to a large facility and four remote plants. Nancy has been the constant employee while going through six managers in the last 10 years. Her colleagues truly value her experience and historical knowledge of how are systems are run. Either at work or on call, they can count on Nancy to know what to do and make sound decisions.

Jason McCabe

Jason has been a Silent Hero at the Charlottetown Pollution Control Plant since October 2006. He is a dedicated,

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dependable employee who is always up for the task at hand and quietly takes care of challenges as they arise.

Jason started as a Technician II and has been promoted to Technician I. He has Level III Wastewater Treatment and Level III Wastewater Collections certifications.

Steven Stewart (not pictured) Steven is a veteran leader who teaches junior operators about the skills and dedication required to be successful in the profession. Steven is a shining example of how to balance the physical and mental aspects of the job. He is an articulate communicator, which makes him an effective advocate for the facilities under his watch and the colleagues with whom he works.

Doyle Whitt (not pictured) Doyle has been a dedicated employee for the Town of Gander and has a wealth of knowledge and an unprecedented commitment to his job. He interacts with management, the public, and fellow employees with the upmost respect. He will go well out of his way to provide training and information to those around him and also in neighbouring communities.

Doyle is a valuable asset to the Town’s management team and is available any hour of the day to provide his professional insight on any issue that may arise.

CONTRIBUTION AWARD The Contribution Award, formerly the Volunteer Recognition Award, is awarded by ACWWA and may be presented annually to recognize outstanding contributions by an individual or a group of individual volunteers to ACWWA programs and/ or the water industry throughout Atlantic Canada. The nominee must be a member of ACWWA, (AWWA or WEF), or employed by a utility member of ACWWA. Our award recipient this year is Lindsay Bolton. Thank you for your contribution to the water and wastewater community over the years!

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PROJECT OF THE YEAR The Project of the Year – Engineering Award/ Environmental Award is awarded by ACWWA to a Municipality or Utility and their Consultant, one of which is a member of ACWWA, to recognize outstanding projects in Atlantic Canada that demonstrate innovation and stateof-the-art technology in water or wastewater projects.

Awards may be presented in each of the following three categories: • Small Utility – less than 5,000 customers • Medium Utility – between 5,000 and 25,000 customers • Large Utility – more than 25,000 customers Our award recipients this year are: Small Utility – Town of Souris/CBCL New wastewater treatment plant upgrades for the town of Souris replacing 50 year extended air plant with new Sequencing Batch Reactor (SBR).

EMERGING LEADER AWARD (YOUNG PROFESSIONAL AWARD) The Emerging Leader Award (Young Professional Award) recognizes a Young Professional within ACWWA for outstanding contribution to the water and wastewater industry and to the ACWWA Emerging Leaders Committee.

This year’s recipient of the Emerging Leaders award is Michael Brophy.

Michael has been a great volunteer for the Membership Committee and recently accepted a new role as government affairs chair. Michael has been doing double duty since May for both positions until a replacement can be found. His communication is excellent and he takes his role very seriously. We see Michael moving through many roles through the Association.

BEDELL AWARD

Large Utility – Town of Stratford/ Stantec/City of Charlottetown/CBCL A major project including pump station and force main plus lagoon decommissioning (Stratford/Stantec) plus treatment plant expansion (Charlottetown/CBCL) to transport and treat wastewater generated in Stratford within the Charlottetown regional system.

L to R: Mike Abbott, Mayor Philip Brown, Mayor Steve Ogden, Corey MacPhee, Warren Martin, and Janeen McGuigan

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| Winter 2023/24

The Bedell Award is awarded by the Water Environment Federation (WEF) and may be presented to a member of ACWWA to acknowledge extraordinary service to a WEF Member Association. The award is named for Arthur Sidney Bedell, WEF’s second president, for his long devotion and service to the New York Sewage and Industrial Wastes Association, now the New York Water Environment Association. He was Chief of the Bureau of Sewage and Waste Disposal of the New York State Department of Health.

This year’s recipient of the Bedell Award is Cathy Cameron.

Cathy Cameron would be familiar to members who have attended an annual conference, participated in an educational seminar, attended a trade show, or the

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companion’s program, golf tournament, Water For People fundraiser, ABEA Board Meeting, or an ACWWA Board meeting. Over the years, she has been a tireless volunteer for both ACWWA and ABEA, and has served on the Board of Directors in each organization. Without people like Cathy giving tirelessly of herself to get things done, organizations like ACWWA simply cannot thrive as it does.

Cathy is the owner of Scotia Tech Fluid Services Ltd. and Aqua Data Atlantic Inc., both of which are ABEA member suppliers that are based in Dartmouth, NS.

IRA P. MCNAB AWARD 2023 The Ira P. McNab Award is awarded by ACWWA and may be presented annually to a member for outstanding service to the water industry in Atlantic Canada. The award was established in 1957 when the ACWWA was called the Maritime Branch of the Canadian Section of the AWWA. It is in honour of the late Dr. Ira McNab, P.Eng., the first president of the Maritime Branch, for his untiring efforts and wise council during our formative years and to recognize his outstanding service and interest in the local water utility field.

The 2023 Ira P. McNab recipient is both an outstanding individual and has offered the ACWWA and AWWA outstanding service to the water industry over their many years of involvement with the association. John Eisnor is this year’s recipient of the Ira P. McNab award. John is currently Acting Senior Manager of Water Services at Halifax Water. John’s keen interest in leadership and service to the water industry has and continues to ensure

ACWWA serves Atlantic Canada Members well through these times of change.

John has been a member of ACWWA since 2000, starting through involvement with operator certification and training through Nova Scotia Environment and Climate Change. Since then, he has held numerous positions on the Board including Membership Director, ACWWA Chair, and now as AWWA Director. He has co-chaired the annual conference in Halifax twice, is the vice chair of the Water Loss Control Committee, and has participated in development of several AWWA standards, and is currently writing a chapter for M36 – Water Audits and Loss Control Programs.

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Winter 2023/24 |

| 23

EMERGING LEADERS AND WATER FOR PEOPLE UPDATE

T

he 2023 ACWWA Annual Conference in Charlottetown, PEI was another great success and experience for members of the Emerging Leaders and Water For People committees. The Emerging Leaders kicked off the conference on Sunday evening with a well-attended bingo networking event and mixer held at Brickhouse, sponsored by Sansom Equipment. We had many emerging leaders in attendance this year and it was a great experience for both the new and returning faces.

We’d like to thank the established professionals who attended the event and engaged with those new to the industry – your continued support of the Emerging Leaders Committee and their activities is truly appreciated.

Jin Li is a graduate student who moved to Halifax from China in 2022. This was Jin’s first time at a conference. Jin noted that “this was the first time I was able to speak to the broader water industry about

T

he Water For People Committee held several fundraising events at the conference to support Water For People projects. In just three days we were able to raise an impressive $19,277! This is no small feat for a small AWWA section! The silent auction had several highly contested bidding wars, most notably for the Toronto Maple Leaf tickets donated by Neptune Technology, the Yeti cooler and mug donated by IPEX Inc., and the home UV treatment system donated by EMS Water Systems. Thanks to all those who generously donated to the auction this year, which resulted in raising $3,611.

A special thanks goes out to the City of Moncton employees who donated $10,000 from their scrap metal recycling program. Each year we are

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my research, and for a student like me who works in the lab it is a rare opportunity to connect with highlevel people in the industry that have different perspectives. The conference was a good opportunity to do that. Being at the conference helped me narrow in on some relevant research that I will do in the future. I also enjoyed the water tower and casino night.”

The Emerging Leaders were also busy volunteering, networking, and giving presentations at the conference. Fourteen Emerging Leaders gave oral presentations, nine of which were considered for the Fresh Ideas competition.

It is a pleasure to announce that Kalli Hood, a PhD Candidate from Dalhousie University, won the Fresh Ideas competition with her talk on “Microplastics in drinking water and wastewater systems: quantification, adsorption, and treatment.” Kalli will be representing the Emerging

Leaders of ACWWA in the Fresh Ideas poster competition at the 2024 AWWA Annual Conference and Exposition in Anaheim, CA (June 10–13)!

“I’m so thrilled that water industry young professionals like me are getting recognition through Fresh Ideas. Can’t wait to present at AWWA in Anaheim!”

– Kalli Hood

blown away by their contribution from this program and truly appreciate it!

The 50/50 draw also had an exciting conclusion with Tony Whalen having the winning ticket and donating a portion of his winnings back to Water For People, and others who generously gave open donations to bring us over the $19,000 mark. We’d also like to thank those who donated by buying back into the Casino Night, those who participated in the Fun Walk and Run event with the rain, Glenn Ross for donating the T-shirts, and Sansom Equipment for supporting the Fun Run, and Greatario for their donation to Water For People from their lanyard recycling program. Overall, it was an even bigger success compared to last year, and we couldn’t accomplish our fundraising goals without you.

We are excited for next year’s ACWWA conference in Fredericton, NB and hope you will join us again in our efforts to raise funds for sustainable water projects around the globe! Next year will see a brand-new committee organizing and running the EL events. Helena Steeves and Andrew Burgess will be taking over the co-chair responsibilities of the Emerging Leaders Committee, and Gillian Stanton will be taking over the role of chair for the Water For People Committee. We are excited to see what the new committee will accomplish! For anyone looking to learn more about the Emerging Leaders and Water For People committees, or to help at events, contact us at acwwa.els@gmail.com.

Winter 2023/24 |

| 25

2024

ACWWA ANNUAL CONFERENCE

Fredericton Convention Centre Fredericton, NB September 22 to 24, 2024

“A Growing Concern – Adapting for the Challenges of Tomorrow”

W

e missed you in 2020!

Unfortunately, a nasty global pandemic halted Fredericton from hosting the 2020 ACWWA conference. It matters not. The past four years allowed the hosting committee to squirrel away ideas to offer an unforgettable experience with “second to none” technical content.

Much has changed in four years, and noticeably, the rapid population GROWTH in Atlantic Canada. How has this rapid growth impacted your renewal plan? Have you shifted priorities? Is your community ready to expand existing systems? Is the growth a concern for your water and wastewater systems?

Let’s come together and share our experience and knowledge on how our communities are dealing with this growth in demand and expansion of water and wastewater systems. Network with peers, meet industry experts, and experience technical sessions catering to municipal growth challenges – the hosting committee is excited to meet and hear from you!

Oral presentations The ACWWA is inviting abstract submissions for the 2024 Conference in Fredericton, NB. All topics related to the water and wastewater profession

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| Winter 2023/24

will be considered. The schedule will include technical, leadership, and workforce management tracks.

Presentations will be 20 or 30 minutes in length with five minutes for questions.

Instructions for submitting abstracts Please submit an abstract (maximum length of 300 words), a presenter biography (maximum length of 200 words), and a filled-out copyright release form, available from www.acwwa.ca, by February 23, 2024.

Also, please indicate if the presenter is a first-time Young Professional participant at the ACWWA Section conference and would like to be considered for the Fresh Ideas program that has been developed through AWWA’s Manufacturers/Associate Council and the Young Professionals Committee. The top presentation selected from this group of presenters will be given the opportunity to compete in the Fresh Ideas poster competition at the AWWA Annual Conference and Exposition (ACE 2025) from June 8 to 11, in Denver, Colorado, representing the Young Professionals of ACWWA. Along with complimentary conference registration provided by the ACE 2025 organizing committee, ACWWA will provide the winner with a stipend to assist with travel costs to the conference.

Selection criteria Submissions will be reviewed based on the significance of the work/ content to a broad audience, the originality of the work, the novelty of concepts, improvements, or data, the technical content, the completeness of the work, the relevance to the technical, leadership or workforce management tracks, and to the theme of the conference, if applicable. Special attention will be given to submissions from utility representatives. Case studies on new technologies and industry presentations that are innovative/educational are encouraged; however, submissions that appear to be marketing material for a particular product or company will not be accepted.

Authors will be notified of the selection of their abstracts for presentation by the end of June 2024.

Calling all operators and students!

We are excited to offer an added incentive for operators. Operators whose abstracts are accepted will have their conference registration waived!

Also, in addition to being considered for the Fresh Ideas program and a chance of representing the Young Professionals of ACWWA at ACE 2025, students whose abstracts are accepted will have their conference registration waived.

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You Work Hard As A Water Professional We Want To Make Your Job Easier Our goal is to provide members with the essential resources and water knowledge they need to optimize day-to-day operations and maximize growth opportunities in the profession.

AWWA Standards and Manuals, industry reports, and a wide range of education and training options provide the necessary guidance and tools to enhance your operational performance and support your career advancement in the water industry.

Join AWWA today and get access to the people and information you need to advance!

awwa.org

ALL ABOUT

VARIABLE FREQUENCY

By Dave Galbraith, Sansom Equipment

V

ariable frequency drives (better known as VFDs) – everyone talks about them, but do you know how they really work? Most people don’t really think about how they work; they only want them to work correctly.

When do you know if you need a VFD or just a Soft Starter? What is a Soft Starter and how is it different than a VFD, you ask? I get these questions weekly, so I will try to explain how they work and why you should consider one over the other. A VFD and

a Soft Starter (aka SSRVS – Solid State Reduced Voltage Starter) are similar in some ways yet are very different, too. The main difference is the VFD can vary the speed of a motor and the Soft Starter can only start and stop the motor and operates at full speed.

SOME SIMILARITIES AND DIFFERENCES BETWEEN MOST STANDARD VERSIONS OF A SOFT STARTER AND VFD

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DESCRIPTION

SOFT STARTER

VFD

Supply Voltage

208… 600VAC same unit

Specific 208, 460, 600VAC

Disconnect Options

Factory built

Factory built

Power Density

Smaller footprint – larger Hp

Larger footprint than Soft Starter per Hp

Enclosure Rating

Open Type – to be put in a panel

Open Type, NEMA 1, 12, 4X & other

Normal/Heavy Duty

Yes

Yes

Power Ratings

~30 Hp and up

0.5 Hp and up

Control Power

Separate 120…250VAC required

Uses the line voltage and converts to DC

I/O Power Supply

24VDC included

24 VDC included

Keypad HMI – LCD

Included

Included

Adjustable Parameters

Yes

Yes

Computer Software

Available

Available

Analogue Inputs

No

Yes

Analogue Outputs

Yes (one) limited program option

Yes (two) multiple program options

Digital Inputs

Yes – specific functions

Yes – multiple program functions

Relay Outputs

Yes – programmable

Yes – programable, special functions

Safe Torque OFF (STO)

No

Yes

Communications

Yes

Yes

Adjustable Ramps

Yes

Yes

Quick Ramps – Dual

No

Yes

PLC Type Functions

No

Yes

Variable Speed

No

Yes

Forward and Reverse

Not without external controls

Yes

| Winter 2023/24

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DRIVES Many small pumping stations (either submersible or above-ground self-priming styles) are often controlled by simple across-the-line full voltage starters (Contactor and Overload). A float switch or level sensor will trigger the start signal to a coil and a contactor pulls in and BAMP! 230VAC or 600VAC 60 Hz hits the motor and within a second or two the pump is running at full speed at 60 Hz. Water flows up and away from the well and it empties the pit until the stop level is reached and the power is removed from the motor and clunk, the check vale closes. Depending on the type of motor and the application, one could see 6X to 15X inrush current as the motor starts. The length of pipe, elevation difference in head, and amount of water in the pipe all contribute to possible water hammer when starting (and stopping). When a full voltage starter stops the voltage is removed instantly, and the water hammer and vacuum can put stresses on the piping and equipment.

When the sizes of the motors are getting larger, then Soft Starters or VFDs are often considered.

When you need to look at reducing water hammer and inrush power consumption and are just running the motor at full speed, you should consider a Soft Starter. When you want to reduce the frequency of starting and stopping of a pump, reduce or eliminate water hammer, eliminate inrush power, and still control the level in a well, you should consider a VFD.

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Before we look at the similarities and differences in more detail, I’ll highlight a little electrical theory.

You can’t see electricity but can see the effects. You can see water, so I will compare electricity to water. Voltage is the Pressure (i.e., PSI or Bar/kPA), Current/ Amps is the amounting Flow (i.e., GPM or litres/sec), Impedance is the Resistance or restriction (i.e., NPSH) in the line/wire. All if these added up together equals the power often referred to Kilowatts or Horsepower. The motor needs torque by using electrical energy to convert to mechanical energy.

When the proper amount of voltage and frequency is applied to the motor based on the nameplate’s data, the motor will rotate and use Current (Amps) supplied from the VFD or Soft Starter to magnetize the rotor with flux (rotating part inside the motor housing) to move the material – for example: water in a pump or air in a blower.

A Soft Starter is used when you want to operate a motor at full speed yet limit the inrush power being used by your motor when starting. Soft Starters have Thyristors, which are semiconductor devices that control AC (Alternating Current) that holds back the voltage and slowly releases it over an adjustable time delay or a “Ramp Time” – for example 5 seconds or 30 seconds.

The Soft Starter utilizes Ramp Up and Ramp Down times to reduce water hammer or heavy

Winter 2023/24 |

| 29

ALL ABOUT VARIABLE

FREQUENCY DRIVES

When you want to reduce the frequency of starting and stopping of a pump, reduce or eliminate water hammer, eliminate inrush power, and still control the level in a well, you should consider a VFD.

mechanical stresses. A Soft Starter will often start with a reduced voltage of aprox. 30% and then over 5 to 30 seconds will ramp up to 100% voltage. Examples: 600VAC x 30% = 180VAC – 230VAC x 30% = 69VAC. The Soft Starter inrush current can be adjusted with the keypad to typically 4X to 7X depending on the application and the Soft Starter design.

Formula for three-phase power is: P = 1.732 * V * I * PF

If we look at a 50 Hp motor with an across-the-line starter 45 Amps X 6 = 270 Amps. Using the three-phase power formula: 1.732 x 575VAC x 270 Amp x .90 PF = 241,724 watts (inrush power).

If we look at a 50 Hp motor with a Soft Starter and limit the inrush current to 4 x 45 Amps = 180 Amps and the starting voltage to 30% = 180VAC. Using the three-phase power formula: 1.732 x 172.5VAC x 180 x .90 = 48,400 watts (inrush

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A VFD can also ramp up to full speed and ramp down to stop but can also operate at less than or more than full speed by changing the frequency.

The basic speed formula is 120 x Frequency divided by the number of poles in the motor.

If you want to look at applications, properly sizing VFDs, and whether or not you need filters to protect your motor, that is a topic for another day.

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| Winter 2023/24

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BACKtoFundamentals

Partial separations of combined sewers

By Adam Sketchley, P.Eng., M.A.Sc. – DesignPoint Engineering & Surveying Ltd.

M

any utilities within Atlantic Canada have portions of combined sewer, conveying both wastewater and stormwater. These combined sewers and downstream wastewater infrastructure can become overloaded during high stormwater flow, at times leading to surcharging and overflow. In an effort to comply with environmental guidelines and regulations and to increase system capacity, utilities are making an effort to separate stormwater into an independent system.

At the upstream portions of a combined system, or in small systems, full separation can be achieved by capturing all stormwater inputs into the new storm system.

Often however, there are so many storm inputs, or the system is so large, that separation has to be completed in stages. Full separation of a combined system can take many years to complete, and may never be fully completed if funding is not available. It is typical that a large combined system becomes partially separated, with the most cost-effective stormwater removal completed. Essentially, the lowest cost solution which can remove the most stormwater possible is completed first.

When completing the initial stages of a separation, consideration must be given to the stormwater that still enters the system following separation. If there are still stormwater inputs upstream of the newly separated system, high peak flows can still be expected to occur.

It is intuitive to expect that, if replacement of the combined sewer itself is needed during a separation, that it could be reduced in size.

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“ It is typical that a large combined system becomes partially separated, with the most cost-effective stormwater removal completed.

Essentially, the lowest cost solution which can remove the most stormwater possible is completed first.”

Stormwater is being removed from the system, therefore less flow capacity is required. It is important to consider, however, that not all stormwater may have been getting

into the system in the first place.

The surcharging that is often experienced during high flow in a combined system means that flow is bypassing and/or exiting the system.

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Winter 2023/24 |

| 31

BACKtoFundamentals

If some of the stormwater, but not all, is removed, then the flow which was previously bypassing the system now has capacity to enter the system.

Theoretically, a combined system that badly surcharges prior to separation could experience no net flow reduction following a partial separation. The rate of surcharging would decrease following separation, which is a benefit overall, but the stormwater which was previously surcharging can still enter the system.

One strategy to account for upstream stormwater inputs is to maintain hydraulic equivalency.

By calculating the capacity of the upstream combined or stormwater inputs to the system and providing equivalent capacity in the combined system in question, the risk of surcharging is mitigated. This is a conservative approach as the final combined system has capacity for all incoming stormwater and combined infrastructure flowing full.

Maintaining hydraulic conductivity in a partially separated combined

“ One strategy to account for upstream stormwater inputs is to maintain hydraulic equivalency. By calculating the capacity of the upstream combined or stormwater inputs to the system and providing equivalent capacity in the combined system in question, the risk of surcharging is mitigated.” system may be appropriate in large systems or systems with a history of surcharging or a high consequence of surcharging. Alternatively, a policy of not decreasing the size of combined infrastructure until all upstream stormwater is removed from the system would confirm that surcharging would not increase if the flow reduction following the separation is less than anticipated.

Understanding that combined systems can still experience significant stormwater flow following

partial separation is important to maintaining the necessary level of service. Considering that rainfall events in excess of design criteria can and do occur, and that all stormwater bypass cannot be accounted for, a conservative approach is often prudent.

Do you have a topic for a future Back to Fundamentals article?

Email adam.sketchley@designpoint.ca or contact@acwwa.ca and we will do our best to cover it!

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| Winter 2023/24

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ADVERTISER PRODUCT&SERVICECENTRE

Go With The Flow is made possible by the companies below who convey their important messages on our pages. We thank them for their support of ACWWA and its publication and encourage you to contact them when making your purchasing decisions. To make it easier to contact these companies, we have included the page number of their advertisement, their phone number, and, where applicable, their website. You can also go to the electronic version of Go With The Flow at www.acwwa.ca and access direct links to any of these companies.

Company

Page

Phone

ACO Systems, Ltd.

31

877-226-4255

www.acocan.ca

Aqua Data Atlantic

12

902-468-9447

www.aquadata.com

Atlantic Backflow Specialists Ltd.

8

902-499-7745

www.atlanticbackflow.com

Atlantic Purification Systems Ltd.

3

902-469-2806

www.aps.ns.ca

AWI (Antratech Western Inc.)

4

403-255-7377

www.awifilter.com

Belzona Atlantic Canada

13

902-789-0479

www.belzonaatlantic.com

Campbell's Concrete Ltd.

7

902-368-3442

www.campbellsconcretepei.com

Can-Am Instruments

29

905-829-0030

www.can-am.net

CBCL Limited

14

902-421-7241

www.cbcl.ca

Clow Canada

34

905-548-9604

www.clowcanada.com

Concord Supply

13

877-436-3800

www.concordsupply.ca

Denso North America Inc.

32

416-291-3435

www.densona.com

Everest Automation

10

902-835-9337

www.everestautomation.com

EXP Services Inc.

23

506-452-9000

www.exp.com

Ford Meter Box Company

6

260-563-3171

www.fordmeterbox.com

Greatario Engineered Storage Systems

13

519-469-8169

www.greatario.com

Halifax Water

12

902-490-4840

www.halifaxwater.ca

Huntley’s Diving and Marine

13

902-678-7234

www.huntleyssubaqua.ca

IPEX Management Inc.

35

866-473-9462

www.ipexna.com

John Brooks Company Limited

9

877-624-5757

www.johnbrooks.ca

Maple Reinders

15

905-821-4844

www.maple.ca

McLennan Sales, Division of EMCO Corporation

34

506-634-3112

www.mclennansales.com

Mission Communications

36

877-627-2232

www.123mc.com

Mueller Canada

11

705-719-9965

www.muellercompany.com/en-ca

NETZSCH Canada Inc.

30

705-797-8426

www.pumps.netzsch.com

Roth Global Plastics

2

866-943-7256

www.rothmultitank.com

Scotia Tech Fluid Services Ltd.

20

902-468-2777

The Panel Shop – A Division of Pennecon

19

506-455-1925

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Website

www.thepanelshop.com

Winter 2023/24 |

| 33

To reach Atlantic Canada’s water industry professionals through Go With The Flow magazine and its targeted readership, contact Chad at your earliest convenience to discuss your company’s promotional plans.

Chad Morrison, Marketing Manager

866-985-9788 | chad@kelman.ca

34 |

| Winter 2023/24

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