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					page 38                                                                                             SUMMER 2004




                            Ohio’s AWWA Safety Committee

                          July is “Safe Lifting” Month. Watch your back!
                                 The most prevalent work related injuries tend to be back strains and
                                 sprains. Improper lifting may account for many of these injuries. Make
                                 sure all employees are aware of safe lifting procedures, and how to
                                 stretch and prepare your body before performing lifting tasks. To help
                                 keep your back healthy and strong, bend at the knees and keep your
                                 back vertical, grip with your hands not your fingers, and let your legs
                                 do the lifting. If the load is too heavy, don’t play hero – get some help.
                                 Keep yourself and your workers in action – not in traction.



                              August – The heat is on!
   Take the outdoor temperature into consideration before performing tasks
   in the hot sun. Dehydration occurs quickly when your body temperature
   rises. If you feel thirsty, you may have already put your body in danger
   of heat stress.
       • Drink plenty of fluid with high amounts of vitamins and
           electrolytes, as you body may lose a quart of fluid an hour when
           sweating in higher temperatures.
       • Eat lightly and increase your salt intake if possible while staying away from
           caffeinated and high sugar drinks, as well as alcohol since they tend to increase
           dehydration.
       • Take breaks to rest and cool off. If possible, work during cooler times of the day.

   Chill out this summer and PLAY IT COOL!


                           September – still holds days of summer fun.
   Millions of Americans will be fishing, water skiing, and enjoying their boats before they are dry
   docked for the winter. To have fun and stay safe remember to
       • always wear a life jacket,
       • don’t overload your boat,
       • keep a sharp lookout for swimmers, and other watercraft,
       • and always carry emergency equipment such as a radio, flashlight, fire extinguisher, whistle
          or horn, visual distress signal and first aid kit.

   According to the US Coast Guard, the vast majority                of fatalities (85%) occur on small
   boats (less than 26 feet in length), with                             three-quarters of those victims
   drowning, as well as alcohol being a                                    factor in 27% of all boating
   fatalities.
OHIO SECTION AWWA                                                                                                             page 39




                                                    Heat Stress
                                        Working in a hot environment puts stress on the
                                        body's cooling system. When heat is combined
                                        with other stresses-like hard physical work, loss
                                        of fluids, or fatigue-it may lead to heat-related
                                        illness, disability, or even death!

                                    The body is always generating heat and passing it to the environment. The
   harder you work, the more heat your body has to lose. Heat leaves your body in several ways:
      • transfer from skin to air.
      • evaporation by perspiration.
      • exhaling hot air.
      • touching a cool object.

     Individuals over age-40 need to take extra care when the weather is hot, because our ability to sweat declines
   as we age. However, heat stress can also affect individuals who are young and fit.
     Water is crucial to helping the body adjust to high temperatures. The rate of water intake must equal the
   increased rate of water loss by perspiration to keep body temperature normal. When it's hot, drink plenty of
   water!
      Your body must work even harder to get rid of excess heat when conditions are both hot and humid.
   Unfortunately, perspiration can't evaporate as readily under muggy conditions. The process is easier if the
   surrounding air is moving. That's why we welcome a cool breeze, or turn on a fan when the air is "sticky".
     Sickness and accident rates increase when heavy work is done at temperatures above 30 degrees.
     Don't push yourself beyond your limits. It could be harmful to your health, and could put you at increased
   risk of having an accident.
     Heat stroke can kill a person quickly! Once the body uses up all its water and salt, sweating ceases.
   Temperature can rise quickly. You can assume a person is suffering from heat stroke if their body temperature
   is over 41 degrees, and any of the following symptoms are present:
       • weakness, confusion, distress, strange behavior.
       • hot, dry, red skin.
       • rapid puIse.
       • headache or dizziness.
     In later stages heat stroke, a victim may pass out and have convulsions.
     Call an ambulance immediately if heat stroke is suspected. The victim' s life may be on the line! Until help
   arrives, move the victim to a cool area and remove excess clothing. Fan and spray them with cool water. Offer
   sips of water if the victim is conscious.
     How can you protect yourself and your coworkers?
     The following measures should help prevent the development of heat-related illnesses.

      1. Slow down in hot weather. Your body's temperature regulating system faces a much greater workload when
         temperature and humidity are high.
      2. Heed early warnings of heat stress, such as headache, heavy perspiration, high pulse rate, and shallow breathing.
         Take a break immediately and get to a cooler location. Watch for heat stress signs among your co-workers.
      3. Dress for hot weather. Lightweight, light-colored clothing reflects heat.
      4. Drink plenty of water. Don't let yourself "dry out".
      5. Increase your salt intake, preferably by adding salt to your food. (Consult your physician if you are on a salt-
         restricted diet.)
      6. Try to get used to warm weather gradually. Take it easy for those first two or three hot days. Your body will
         have a better chance to adjust if you take it slow.
      7. Get out of the heat occasionally. Physical stress increases with time in hot weather. Take breaks in a cool, shady
         location.
      8. Don't try to get a suntan while you are working! It's harder for your internal cooling system to work through
         sunburned skin. Wear a hat and long-sleeved shirt to prevent burning (which we know can increase the risk of
         skin cancer.)
      9. Train your workforce about heat-induced illnesses.
page 40                                                                                               SUMMER 2004


                 Walk For The Earth - April 18, 2004
There were 21 participants representing the AWWA Young Professionals comprised of 18 walkers and 3 bikers.
The walkers and runners gathered in the Cleveland Metropark Zoo’s parking lot adjacent to the Zoo’s Compost
Facility and the “step off” for the walk and ride took place a few minutes after 9:00 AM. The weather was in the
mid-60s making for a very pleasant start and finish to the event. The walk stopped near the Zoo’s Compost
Facility at which point we were given a brief introduction to the attention required to produce quality compost.
The Zoo staff indicated that nothing goes to waste from the Zoo, provided it is a plant based material. They
specifically noted that waste from the Zoo’s resident carnivores is not used in the compost operation. The walk
proceeded westward along Wildlife Way up to Fulton Road, continuing along Fulton Road, and into Brookside
Park. After walking through Brookside Park, the group turned back toward the Zoo and along the way, there
were several water conservation exhibits for the walkers and bikers to view and ask questions of the attending
volunteers. Upon returning to the Zoo, there were many exhibitors on hand to present ways in which everyone
can contribute in maintaining a healthy environment.
OHIO SECTION AWWA                                                                                         page 41


                        Service ActivitiesChair    Committee
                                 by: Linda Nelson,
    Members from the Customer          Committee at this year’s confer-      Impact, along with other perti-
Services Activities Committee          ence as their members present the     nent topics to contribute to pro-
(CSAC) continue to rotate quar-        Goal Setting/Magic LAMP half          viding excellent customer service.
terly meetings throughout mem-         day workshop. CSAC members
ber cities this year to share infor-   agreed to move the round table            For focusing on the service
mation with guests about CSAC          discussions to a later date. As       provider, plan to attend the half-
activities. Cincinnati Waterworks      member Jonisa Portemont said,         day Diversity Workshop, the full
hosted the April 30th meeting          "Because so many of our utility       day "Cycle of Service" workshop,
with local arrangements provided       employees want to attend both         followed by the service focused
by CSAC member Alison                  Diversity and Customer Service        technical sessions at the
Posinski. Members and guests           activities, we should schedule        September 14-17 AWWA Ohio
learned more about AWWA and            workshops at different times          Section Conference in Toledo. See
CSAC when Chair Linda Nelson           whenever possible."                   you there!
presented an informative slide             The new full day CSAC work-           AWWA CSAC Workshops can
show about AWWA/membership             shop titled, "The Cycle of Service"   be made available upon request
benefits. The next meeting is          will be offered at Conference this    at a reasonable cost. Workshops,
scheduled at the City of               fall. Segments will feature cus-      e.g., "Surviving Customer
Cleveland Water Division on July       tomer service topics targeted for     Service", credits attendees with
16th. Wanda Copeland, Sharonda         office and field personnel because    contact hours. To host a session at
Denson, and Corrine Hunter will        we are all customer service           your facility or join the commit-
handle local arrangements. (See        providers. In addition, Technical     tee, please contact Linda Nelson
contact numbers listed below for       Sessions featuring customer serv-     at 419-245-1847 or Sharonda
attendance or additional informa-      ice provider options will be          Denson at 216-664-2444 or any
tion.)                                 offered. A variety of topics are      CSAC member.
    See You at Conference – -          planned including AMR                     The Customer Service
CSAC!                                  (Automatic Meter Reading),            Activities Committee welcomes
    CSAC members are extending         Water Utilities in the Community,     new members!
their support to the Diversity         Black Out 2003/Customer Service
page 42                                                                                                        SUMMER 2004


          Proactive Distribution System Management
                    Yields O&M Benefits
                     By: Terry Engelhardt • Drinking Water Industry Specialist, Hach Company
    While much attention and fund-        to say, “no where is safe”?                employees know their system and
ing have been directed to large                                                      its vulnerabilities better than anyone
water systems and major metropoli-        The time is right for distribution         and should complete a thorough
tan areas as a response to terrorism,     system management                          assessment of their own system. Yet,
smaller municipalities and utilities          The water distribution systems         familiarity might cause them to
serving rural areas should be plan-       have historically received little          overlook significant security ele-
ning their own pre-emptive meas-          attention in terms of water quality        ments. They would be wise to seek
ures. Many have begun to scrutinize       concerns. Historically, distribution       assistance from employees of neigh-
facility security. Another practical      system operation and maintenance           boring utilities who can offer a
strategy is to implement on-line          has been a reactive practice: if it        fresh, unbiased look. Don’t forget to
monitoring of treated water distri-       breaks, fix it. The closest many utili-    return the favor. And, ask local law
bution systems for practical detec-       ties come to really managing water         enforcement agencies to participate.
tion of intentional contamination.        quality in the distribution system is          While the majority of State and
Such network monitoring would, at         periodic flushing of the system.           Federal water quality regulations
the same time, support best man-          Many systems don’t flush at all, and       target water quality as it leaves a
agement practices by alerting opera-      some that do might be surprised at         treatment plant or well, only a few
tors when even accidental contami-        the ineffectiveness of their proce-        rregulations such as the for distribu-
nations or inherent upsets occur.         dures. (In fact, Improper flushing         tion system monitoring have been
                                          can create as many problems as it          promulgated –coliform testing, the
Rural water systems are not               solves.)                                   Lead and Copper Rule and the
immune                                        However, now is the time to            pending Phase II
    Water supply is both fragile and      implement proactive distribution           Disinfection/Disinfection By-
powerful, subject to contamination        system management, starting with a         Products Rule address specific mon-
at many points and a potent mecha-        review of public information poli-         itoring of the treated water distribu-
nism for spreading disease once           cies. Not many months ago, water           tion system. Many industry leaders
contaminated. This very character of      and wastewater utilities encouraged        and trade associations, including
water supply makes it an ideal tool       public knowledge of treatment facil-       experts at the National Rural Water
for terrorism. Further, the provision     ities and processes. After all, an         Association, envision regulation of
of safe water and treatment of            informed public best understands           distribution system monitoringthink
sewage generally enjoyed by this          the benefits of bond issues calling        this might be the most significant
country reflect its prosperity.           for a new treatment plant, a new           focus of the EPA in coming years.
Compromise of our water and               well, a new water distribution line,
wastewater systems would not only         or wastewater collection or treat-         Multiple O&M benefits of continu-
serve to harm but also instill fear,      ment system. Now, with water sys-          ous monitoring
impact all economic, ethnic, social,      tem security a concern, utilities must         The good news is, most utilities
and racial elements of our society        exercise more caution in divulging         are unlikely to have a security prob-
and strike a blow to a symbol of our      information about the location or          lem other than the occasional high
common well being.                        nature of critical system components       school prank of painting school ini-
    Do you remember where you             such as mainline valves, vaults,           tials on the water tower.
were the morning of 9-11? We all do.      backup generators, pumping sta-            Nevertheless, investment in moni-
Most of us were glad we weren’t           tions, lift stations, chemical feed sys-   toring and physical security will not
near a high-profile target such as        tems, and chemical storage areas.          be wasted; it also can significantly
New York City or Washington, D.C.             Rural utilities will want to care-     improve a facility’s O&M program.
Those of us too close to one of the       fully assess the vulnerability of their    With practical water quality moni-
attack sites couldn’t get ‘home’ fast     distribution systems. Without wait-        toring of the distribution system in
enough, back to less-populated            ing for funding flow, they can take        place, the utility is prepared to
America where it would be ‘safe.’         advantage of supportive informa-           detect accidental contaminants , or
    Yet, how much safer are smaller       tion and direction available now           introduced by an inadvertent cross-
water systems against violation?          from the National Rural Water              connection, a main break, or other
Terrorism is, by definition, the cre-     Association and state rural water          system failure.
ation of fear and intimidation. How       associations. State and Federal regu-          However, increasing frequency
better to create fear in the society at   latory and law enforcement agencies        of grab sample monitoring testing
large than to attack multiple small       also may be able to provide helpful        probably isn’t the answer. In fact,
targets nationwide, randomly, as if       information. Of course, utility            additional manual testing could
OHIO SECTION AWWA                                                                                                  page 43

Continued from page 42                    and purchaser.                           change in response to presence of
diminish utility efficiency, especially       Detecting the need for additional    organic and inorganic compounds.
in small systems where an operator        chemical feeds for pH adjustment,        And, measurement of chlorine resid-
often serves as laboratory techni-        and rechlorination.                      ual not only helps ensure integrity
cian, distribution mechanic, meter            Signaling the need for attention     of the disinfection process but also
reader, bill collector – or even works    required by post-treatment prob-         can signal an unexpected disinfec-
for other departments such as parks       lems such as accumulation of corro-      tant demand.
and streets. Detecting intrusion of a     sion products from the distribution          Additional monitoring parame-
unwanted substance requires con-          piping or post-precipitation of iron     ters might be appropriate, depend-
tinuous measurement. Continuous           or aluminum flocs.                       ing on the chemicals (i.e. fluoride)
monitoring provides several bene-             Think that distribution monitor-     used in the specific system and
fits. Instead, installation of on-line    ing benefits apply only to surface       physical or chemical characteristics
instruments might be less expensive       water-sourced systems? Not so,           of the water (i.e. alkalinity). In the
than the labor hours and vehicle          when considering the factors that        event any of these measurements
costs logged in a limited grab sam-       can affect ground water quality any      exceeds a pre-determined set point,
pling program.                            time, including structural changes in    high or low, an automatically trig-
    In most cases, truly effective and    the well; changes in the aquifer due     gered sampler would supply the
efficient detection of distribution       to geologic forces such as tremors;      discrete sample that could help lab-
system contaminants requires con-         contamination from underground           oratory analysts quickly determine
tinuous water quality monitoring.         chemical (gasoline) storage tanks or     the cause of the excursion.
Consider these benefits:                  industrial solvents that have been
    Detecting possible intrusion of       improperly discarded; contaminated       Start baseline testing now
unwanted substances from a terror-        from surface water intrusion due to          In order to apply continuous dis-
ist act or backflow from an industri-     improper wellhead construction;          tribution system monitoring to
al plant, sprinkler system, cooling       and finally, precipitation of iron       detect suspicious water character
towers, pesticide applicators.            and/or manganese after chlorina-         changes or O&M situations, a utility
    Detecting growth of biofilms and      tion.                                    must first identify normal variation
byproducts of the metabolic process-                                               in water quality parameters due to
es that might cause chlorine              What should be involved in contin-       daily changes in flow, flow direc-
demand or taste and odor or other         uous network monitoring?                 tion, temperature, or even a change
aesthetic problems. Keep in mind;              Determining what parameters to      of seasons. The system instituting
the water must be both potable and        monitor requires knowledge of the        efficient distribution monitoring will
palatable to gain the public’s confi-     specific system. But there are some      need to accumulate data for several
dence, trust, and support.                basic, general-indicator parameters      weeks or even months to determine
    Detecting cross-connections to        every water system should consider       what system variations are routine.
private water systems, inflow from        monitoring continuously in the dis-      Once operators establish a “normal”
sewers, or even presence of an ille-      tribution system. These basic            characterization of system, the utili-
gal water tap.                            parameters include turbidity, pH,        ty is equipped to detect changes due
    Minimizing the need for grab          chlorine residual, and conductivity.     to system maintenance needs or the
sampling for compliance with the               Turbidity is, of course, both a     introduction of a hazardous chemi-
Phase II DDBP Rule, the Lead and          measure of potability and the aes-       cal or biological material.
Copper Rule, and the upcoming             thetic quality of water. It is one of        The point to remember: any utili-
Groundwater Rule                          the parameters that can alert opera-     ty can, and should, be proactive in
    Providing another tool for            tors to the accumulation of sedi-        strengthening its security. Rural
improving public relations and sat-       ments, growth of biofilms, and the       areas must not feel immune; waiting
isfying regulatory reporting require-     presence of post-precipitation of        for a trickle-down mandate before
ments. In the event a purposeful or       coagulants.                              taking action would be irresponsi-
inadvertent water quality problem               Measurement of pH is essential;    ble. Understanding your distribu-
occurs, data from the continuous          it is perhaps the single-most indica-    tion system’s typical water quality
monitoring can assist in providing        tive water quality measurement.          profile, scrutinizing the physical sys-
needed information to customers,          Knowledge and control of pH is           tem for opportunities to improve
news media, city council, water sys-      central to control of corrosion in the   security, reviewing public relations
tem managers, regulatory agencies,        distribution system. Most modern         practices, and continuously moni-
or, when appropriate, to law              pH monitors include a built-in tem-      toring key indicator parameters
enforcement.                              perature probe, necessary to accu-       throughout the network all reduce
    Providing a record of water qual-     rately determine corrosivity.            the susceptibility of your system to
ity at the point where the water               Operators can apply conductivi-     attack and improve management of
leaves a wholesaler’s system and          ty measurements to the estimate of       the entire system.
enters the buyer’s system and evi-        total dissolved solids and also water
dence that protects both wholesaler       corrosivity. Conductivity might also
page 44                                                                                                    SUMMER 2004

                                       Consumers Ohio Water                     company with expanding national
Announcements                          Company Changed Name                     resources and expertise.”
                                                                                    COWC, Ohio’s largest investor-
Obituary – Dick Melick                 to Aqua Ohio                             owned water utility, serves more
June 1, 1917 – April 16, 2004              The Board of Directors of
                                                                                than 260,000 people in 44 commu-
    Richard Frank Melick, 85, of the   Philadelphia Suburban Corporation
                                                                                nities in Ashtabula, Lake,
Glenellen Senior Suites and Villas     (NYSE: PSC), the parent company
                                                                                Mahoning, Richland, Stark, Summit
Lakeside, died April 16 at his resi-   of Consumers Ohio Water
                                                                                and Trumbull Counties.
dence. He was born June 1, 1917 in     Company (COWC), announced that
Columbus, Ohio, a son of Walter        in October, 2003, the company will
and Blanche Matchett Melick. He        change its name to Aqua Ohio, Inc.
came to the area in 1999. A gradu-     to reflect its position as the largest
ate of Columbus Central High           investor-owned water utility based       Jeff Hubbard Retires from
School, he attended Ohio State         in the U.S. The company will             City of Columbus
University. Dick was a water treat-    change the names of each of its              Jeff Hubbard retired March 31,
ment chemist and educator. He had      subsidiaries, now operating in 15        2004 after 31 years with the City of
worked for the City of Columbus        states effective with the company’s                              Columbus
water department from 1934 to          acquisition of the water and waste-                              Division of
1972, where he was head of the         water utility operations of                                      Water. In 1973,
water treatment plants and did         AquaSource, Inc. from DQE.                                       after earning
consulting work in Ohio, West          Consumers Ohio Water Company                                     his degree in
Virginia, and Kentucky, retiring       has become Aqua Ohio, Inc.                                       Civil
after 38 years. He then became the         PSC and COWC has spent                                       Engineering
Executive Director of the Operator     months transitioning customers,                                  from OSU, Jeff
Training Committee of Ohio, train-     shareholders and other key con-                                  joined the
ing operators throughout the state.    stituencies to the new name and                                  ranks at the
He retried from that position in       logo.                                                            Division of
1989 after 17 years. He was a mem-         PSC Chairman Nicholas                                        Water. He
ber of the Worthington United          DeBenedictis said that PSC’s expan-      served as an Engineer-in-Training
Methodist Church where he served       sive customer growth (more than          on the Survey Crew gaining front
in the Stephens Ministry and as an     300 percent in the past 10 years)        line experience while learning
usher, and a member of the Living      from a regional company in               infrastructure, policies, and proce-
Bible Class. He attended the           Pennsylvania to a 15-state company       dures.
Glenellen Church where he was a        weighed heavily in the decision to           By 1977, Jeff had earned his
greeter. He was a member of the        change the company’s name. “We           licensure as a Professional Engineer
Full Gospel Businessmen’s              are now the largest U.S.-based           and became the Construction
Fellowship International, the          investor-owned company, operat-          Engineer for the Division. In 1983,
American Water Works Association,      ing in multiple regions of the coun-     Jeff was promoted to the role of
and the Public Employees Retirees      try and providing water and waste-       Chief Engineer over the
Association. The American Water        water service to approximately 2.5       Engineering Group, and the
Works Association honored him          million people. The name Aqua            Division’s main offices were re-
with the Richard F. Melick Award       Ohio is perfect for our new expand-      located from downtown to the
which is presented to an outstand-     ing footprint in the water utility       newly constructed site at 910
ing Water Works employee annual-       sector as it clearly states our busi-    Dublin Road. Jeff served as the
ly. He leaves his wife, the former     ness focus and demonstrates our          project engineer on the construction
Frances Elizabeth Kohl whom he         position as a large domestic water       of the Utilities Complex building
married May 30, 1941; a daughter,      utility.”                                and was able to experience the
Karen Anne (Shige Umemoto)                 COWC customers will not see          fruits of his labor first hand.
Melick; two sons, the Reverends        changes to their existing service.           In 1988, Jeff’s responsibilities
James R. (Jane) Melick of              “The phone numbers customers             significantly expanded when he
Boardman, Ohio and Daniel C.           currently call for routine customer      advanced to Assistant
(Linda) Melick of Lewistown,           service and emergencies, as well as      Administrator for the Division. He
Montana; three grandchildren and       our hours of operations, will            was in a position to directly affect
three great-grandchildren. A sister    remain the same,” said Walter J.         policy, work more directly with
Ruth Luttrell and a brother Walter     “Buzz” Pishkur, COWC president.          union representatives, and assist all
Melick are deceased. Dick will be      “Water rates will also remain the        sections of the Division on projects
remembered by his family as a lov-     same. We are simply changing our         and with issues.
ing husband, father, and grandfa-      name to reflect the national scope           In 1999, Jeff took over the reigns
ther.                                  of our parent corporation,” he said.     of the Division as the
                                       “We will continue to be a local          Administrator. Congratulations on
                                                                                                         Continued on page 45
OHIO SECTION AWWA                                                                                                 page 45

Continued from page 44
your retirement and the conclusion
of a truly meaningful career.              With more than 19 years experi-     carbon and nitrates. The Reiss
                                        ence in leading staff and volun-       Environmental, Inc. and
                                        teers, MacIlwaine is known for pro-    Poggemeyer Design Group, Inc.
                                        moting extraordinary customer          team will also be performing a low
Cheryl Roberto Appointed                service, communication and team-       pressure reverse osmosis pilot for
Director                                work. She has hands-on experience      the City of Bowling Green in 2005.
    Columbus Mayor Michael              managing programs that provide             Reiss Environmental, Inc., head-
Coleman appointed Cheryl Roberto        current technical, regulatory and      quartered in Winter Park, Florida,
to be Director of Public Utilities.     management, information.               remains one of the premier consult-
Cheryl will serve as the first female      “AWWA is fortunate to have          ing firms specializing in advanced
                      director. She     association staff, hundreds of vol-    water and wastewater treatment
                      has been a part   unteers and thousands of members       processes and regulatory compli-
                      of the            that are dedicated to public health    ance. Led by President and CEO,
                      Department’s      through the provision of safe drink-   C. Robert Reiss, P.E., the firm is rec-
                      leadership        ing water,” MacIlwaine said. “I am     ognized for its water and waste-
                      team since        grateful to those who have men-        water treatment expertise, which
                      February 2001,    tored me, educated me or guided        includes membrane processes, pilot
                      where she         me throughout the past 18 years. It    testing, and hydraulic modeling.
                      served as         has been my privilege to further       Headquartered in Bowling Green,
                      Deputy            AWWA’s mission, and I am excited       Poggemeyer Design Group pro-
Director. Prior to that position,       about the opportunity to support       vides clients with a full range of
Cheryl served as a Policy Advisor       the association in a new capacity.”    engineering, architecture, and com-
to the Mayor from 2000-01. Before          MacIlwaine is an alumnus of the     munity planning services.
working for Mayor Coleman,              University of Northern Colorado
Cheryl served as assistant City         with a Bachelor’s Degree in
Attorney from 1997 to 2000, as          Psychology. She’s been with
Assistant Counsel for the               AWWA since 1986.                       Norman Gadzinski
Commonwealth of Pennsylvania               She replaces Robert Renner,         Promoted to Manager of
from 1996-97, as a private attorney,    who will leave AWWA in June to
                                        become the executive director the
                                                                               MWH Midwest Region
and as Assistant Attorney General                                                                   MWH is
for the State of Ohio from 1987-92.     Instrumentation, Systems and
                                                                                                 pleased to
She earned her Bachelor’s Degree        Automation Society (ISA) in North
                                                                                                 announce that
in political Science from Kent State    Carolina.
                                                                                                 Norman Gadzinski
University, and her Juris Doctorate                                                              has been promoted
from the Ohio State University.                                                                  to Midwest Region
                                                                                                 Manager within
                                        Reiss Environmental and                                  the America’s State
                                        Poggemeyer Design Begin                                  and Local
AWWA Names New                          Pathogen Testing                                         Government – East
Deputy Executive Director                   Reiss Envirionmental, Inc.         Operation. The Midwest Region
    The American Water Works            recently began working in collabo-     includes the Cleveland,
Association (AWWA) named Paula          ration with Poggemeyer Design          Indianapolis and Kansas City,
MacIlwaine, the association’s direc-    group, Ins., on the Pathogen           Missouri Business Units. Norm has
tor of Convention, Education and        Testing Protocol for the City of       been with MWH since 1986, and
Section Services, as its next deputy    Bowling Green. This project will       has deep roots within the Midwest
executive director.                     develop a protocol for Ohio EPA        region, having earned his BS of
    “Paula MacIlwaine has earned        approval to accredit the City’s        Geology from Cleveland State
the respect of the water community      ongoing water treatment plant          University in 1982.
and AWWA’s volunteers over the          expansion. The project will define        Norm has served MWH in a
past 18 years, and we’re pleased        specific procedures to assess          variety or roles, with a primary
she has accepted this new leader-       pathogen removal for the plant’s       focus on construction, project man-
ship role, “ said Jack Hoffbuhr,        key treatment processes spanning       agement, risk mitigation and busi-
AWWA executive director. “AWWA          four seasons. The pathogen evalua-     ness development. Norm’s experi-
is committed to providing the very      tion will allow the City to supple-    ence in general contracting facilitat-
best services and products for the      ment its granular activated carbon     ed his vanguard involvement in
water community. Paula will make        process with low pressure reverse      MWH’s design-build initiative as
certain we continue to do that.”        osmosis to remove total organic        well as his assignment with MWH
                                                                                                        Continued on page 46
page 46                                                                                                    SUMMER 2004

Constructors, MWH’s in house gen-                                                 Moody is the 4th generation presi-
eral construction company. Norm                                                   dent and owner.
has also been involved in other          Moody Relocates to
MWH growth initiative areas              Houston PA
including Knowledge Management               Moody and Associates, Inc. is
and third party Construction             pleased to announce the relocation       Applegate has Baby Boy
Management.                              of its Washington, PA regional           Jacob Nathaniel Applegate was
                                                               office to                               born at 5:08
                                                               Houston, PA.                            am on March
                                                               The office’s                            21, 2004. Jacob
  AWWA to U.S. House                                           success and                             tipped the
Subcommittee:                                                  rapid growth                            scales at 8 lbs.
Aging pipes, security                                          has required                            9 oz. and was
needs, lead service lines                                      an expansion                            20.5 inches
                                                               of facilities to                        long; quite a
addressed                                                      serve our                               big bundle
    Increased federal investment
                                                               clients in                              considering
and higher consumer rates will be
                                                               southwestern                            that he wasn't
required to meet $250-300 billion in
                                         Pennsylvania, West Virginia, and         due until April 2nd! After a very
drinking water infrastructure needs
                                         Ohio.                                    nice hospital stay and quick recov-
during the next three decades,
                                             Concurrent with the office relo-     ery from a C-section, mom is back
AWWA
                                         cation, William Wright, PG, a            at work. Susan is working part-
    Water Utility Council Chairman
                                         Senior Geologist specializing in         time right now and trying to enjoy
Howard Neukrug told a U.S.
                                         environmental consulting for the         every moment with
House of Representatives subcom-
                                         mining industry, has joined the          Jacob. It's amazing how much he
mittee yesterday.
                                         Moody staff. The new office will be      changes everyday! Jacob definately
    Speaking April 28 before the
                                         managed by Barry Sutphin, PG, a          rules the house and keeps his mom
Water Resources and Environment
                                         Senior Geologist with 35 years of        and dad on their toes!
Subcommittee of the Committee on
                                         experience in the consulting, min-
Transportation and Infrastructure,
                                         ing, and construction industries.
Neukrug said America needs “a
                                         Moody has also recently added
new partnership for reinvesting in
drinking water infrastructures.”
                                         Christian Breckenridge, PE, a min-       Ron and Jill Wed
                                         ing engineer with more than ten              Ron Schwarzwalder and Jill
     “AWWA remains committed to
                                         years of experience. The addition        Taptich exchanged wedding vows
the principle of full cost recovery
                                         of these professionals will allow for                          on June 5,
through rates,” Neukrug said.
                                         expanded project management and                                2004.
“However, AWWA does believe
                                         range of services to our mining                                Following a
that due to concurrent needs for
                                         clients.                                                       church cere-
investment in water and waste-
                                             The new office is currently sup-                           mony, an
water infrastructure, security proj-
                                         ported with a local professional                               outside
ects, replacement of treatment
                                         consulting staff of thirteen, and is                           reception
plants, new drinking water stan-
                                         comprised of Geologists, a Mining                              was held
dards, and demographic changes,
                                         Engineer, and environmental                                    with family
many utilities will be very hard
                                         Scientists involved in ground water,                           and friends
pressed to meet their capital needs
                                         surface water, and other related                               at their
without some form of federal assis-
                                         environmental projects.                                        Bexley home.
tance.”
                                             The location for the new office is   A second reception for AWWA
    Water utilities are facing several
                                         in Foxpointe Centre’s Building One       friends and family was held at the
challenges in maintaining and
                                         on South Johnson Road near the           Annual AWWA reception in
replacing drinking water infrastruc-
                                         Meadowlands Race Track Road exit         Orlando on June 12th.
ture. Neukrug’s testimony focused
                                         on I-79, north of the City of            Congratulation Ron and Jill!
on costs associated with pipe
                                         Washington, PA.
repair, increased regulation, securi-
                                             The company was founded in
ty needs and replacement of lead
                                         1891 and has offered continuous
service lines.
    AWWA’s complete testimony is
                                         mining, environmental and                Rick Westerfield
                                         groundwater supply services since        Appointed Administrator
available at
                                         incorporation in 1954. Currently,           Rick Westerfield was appointed
http://www.awwa.org/Advocacy
                                         Moody and Associates, Inc. have          Administrator for the Columbus
/govtaff/legislat/leg_test.cfm
                                         three offices located in Houston,        Division of Water. Rick graduated
                                         Meadville, PA and New York. Jeff         from the University of Cincinnati
OHIO SECTION AWWA                                                                                               page 47

with an undergraduate degree in          Plant Manager for 5 years, Civil        City of Dayton, Ohio
Civil Engineering, furthered by          Engineer and Consulting Engineer        Career Opportunity
obtaining a master’s degree in           for 7 years, and finally as Capital
Sanitary Engineering and doctorate       Projects Manager, a position he         WATER TREATMENT PLANT
in Public Administration. Rick           held for 6 years.                       SUPERVISOR II
                     worked for a                                                    Requires an OEPA Water Supply
                     consulting          Prior to his Cleveland service, Bob     Class III Operator’s license at time
                     engineer for 8      worked 16 years as Assistant            of Application. Must possess and
                     years design-       Engineer for the Mahoning Valley        maintain a valid Ohio driver’s
                     ing water and       Sanitary District. Bob is a             license; background check required.
                     sewer systems,      Youngstown State University engi-           Other requirements include
                     designing           neering graduate, has a Class 4         meeting one of the following
                     water and                                  water            requirements:
                     sewer master                               license, was         1) Bachelor’s degree in engi-
                     plans as well                              listed in the        neering, chemistry, environmen-
                     as other engi-                             Who’s Who            tal science or related field; and
neering studies.                                                of American          two (2) years of experience in
    Rick served as plant engineer                               Science and          the operation and maintenance
for the City of Dayton 70 MGD                                   Industry,            of a water treatment or lime
wastewater treatment plant inter-                               served as an         reclamation plant; one (1) year
acting with operations and mainte-                              officer of the       of this experience must have
nance personnel to improve various                              NE Chapter           been in a supervisory capacity;
programs and facilitate $100M in                                of the Project       OR
improvements. For the past 15                                   Management           2) Associates degree in above
years, Rick worked as Deputy             Institute where he was in charge of         areas with five (5) years experi-
Director of Operations for the           Professional Development Day.               ence in same areas above; one
Montgomery County Sanitary                                                           (1) year of this experience must
Engineering Department oversee-          Bob served in various AWWA                  have been in a supervisory
ing customer service, safety, water      capacities - Section Secretary              capacity; OR
supply and distribution, waste-          Treasurer 1998-2000, Local                  3) High school diploma or GED
water collection and treatment,          Arrangements Chair for several              and eight (8) years of experi-
maintenance, and environmental           Cleveland Conferences, and                  ence enumerated above with
laboratory.                              Northeast District Secretary for 7          one (1) year of this in a supervi-
    Rick likes spending time with        years.                                      sory capacity.
his family, and loves sports, fishing,                                           SALARY RANGE: $44,907.20 TO
exercising, and gardening.                                                       $71, 864.00 PER YEAR
                                                                                     Applications must be filed in
                                                                                 person from July 12 thru July 22
                                                                                 (Mondays & Tuesdays 8:30 a.m. to
Rice has Baby Girl                                                               2 p.m. OR Wednesdays &
   Rachael Margaret Chenoweth                                                    Thursdays 11:00 a.m. to 4:30 p.m.)
Rice was born at 6:15am on May 8,                                                at the Dayton, Ohio Civil Service
2004. Rachael was 19 _ inches long                                               Board Office, 371 West Second
and tipped the scales at 8 lbs. 6 _                                              Street (across from Montgomery
oz. Proud mom, Nancy Rice,                                                       County Jail) , Dayton, Ohio 45402.
serves as Chief of the Division of                                               Applicants must bring a copy of
Drinking and Ground Waters at the                                                the Water Supply Class III certifica-
NE District Office of OEPA in                                                    tion. It is anticipated that the
Twinsburg. Mom, dad, and baby                                                    Structured Oral Interview process
are doing well.                                                                  will take place on either August 16
                                                                                 or August 17, 2004. Applicants
                                                                                 seriously interested in this position
                                                                                 should reserve these days on their
Bob Eagleton Retires                                                             calendar.

Bob Eagleton retired on February
29th following 34+ years of public                                               An Equal Opportunity Employer
service. Bob worked for the City of                                              M/F/H
Cleveland Division of Water for 18
years, serving as Baldwin Water
page 48                                                                                                  SUMMER 2004


    City of Delaware Takes a Proactive Approach on
             Water Treatment Plant Filters
                                   By: Mark Chiovarelli, P.E., • URS Corporation
    The City of Delaware is located     source water from the nearby               In 2002, Delaware contracted
in Delaware County in central           Olentangy River, but also has a        URS Corporation (URS) to investi-
Ohio. The City continues to expe-       supplemental groundwater supply        gate options to rehabilitate the
rience significant growth, with a       of 2 MGD.                              existing eight filtration units at the
current estimated population of             Average monthly water data         Water Treatment Plant. The pri-
29,760. Additional housing is in        records taken from January 2001        mary goals for the project were to;
the pipeline for the City, which        through February 2003 revealed         (1) Increase overall filtering capac-
would result in a population            an average usage for the 26-month      ity by bringing filters #1 & #2 on-
increase of about 14,820 persons        period of 3.4 MGD of surface           line and connecting them to the
based on 2.45 persons per house-        water and 0.685 MGD of ground-         main filter piping system; (2)
hold. This “boom” in housing            water. Average raw and finished        Investigate current filtration tech-
could result in a total population      water quality data for the sam-        nology that will work with the fil-
of 44,580 persons. To meet the          pling period are shown in Table 1.     ter box configuration (including
drinking water demands of this              In early 2001, Delaware Water      replacement of filter media and
population growth and assure the        Treatment Plant personnel began        underdrains); and (3) Improve
highest quality product, the            to experience some higher than         operating efficiencies and quality
Department of Public Utilities          normal turbidity readings at the       of operations for filtering/back-
decided to make some changes at         filter effluent lines. A review of     washing systems. Additionally,
its existing surface water filtration   water quality data at various loca-    the City desired a filter-to-waste
plant.                                  tions throughout the plant did not     (FTW) system as a retrofit to the
    The treatment plant has been in     disclose any significant changes in    existing piping gallery.
operation for over thirty years and     the water quality upstream of fil-
is a traditional coagulation/floc-      tration. After investigating other     EXISTING CONDITIONS
culation, filtration water treatment    possible causes, plant personnel           The four oldest filters have
plant (WTP) with chlorination dis-      concluded that the problem must        approximately 175 square feet (sf)
infection. Several expansion proj-      be filter related. As a result, they   of filtering area and the newer



                                Table 1 – Average Monthly Plant Water Data

                                       Hardness                 Alkalinity                Max. Turbidity*
          Sample Location ID
                                    (mg/L as CaCO3)         (mg/L as CaCO3)                   (NTU)
        Raw Blended Water                  310                      179                         40
     2nd Stage Settling Effluent           206                       65                         1.6
             Filter Feed                   NA                        57                         0.8
           Finished Water                  199                       51                        0.12
     *Represents an average of the highest readings observed in any given month.


ects over the facility’s lifetime       decided to increase the frequency      ones provide 196 sf of filtering
have enabled it to reach its current    of the backwashing cycles to           area. According to the historical
capacity of 6 million gallons per       reduce the filter runtimes in an       design plans, the filter beds were
day (MGD) through the six opera-        effort to alleviate the turbidity      constructed with 25 inches of
tional filters. Additionally, there     breakthrough that was occurring.       media (combined anthracite &
are two filters that are currently      Subsequently, the Public Utilities     sand). The media rests upon 16”
out of service and empty.               Department issued a Request for        of support gravel in which a pipe
Although the exact year they were       Proposals (RFP) to investigate and     header-lateral underdrain system
taken offline is unknown, it is         recommend possible solutions to        is located. Each filter has three
believed that they have been            bring the filters back to the normal   backwash troughs sized at 15”w x
unoperational since at least 1975.      performance that was experienced       16”d. A typical pipe header-later-
The WTP derives most of its             traditionally.                         al installation is shown in Figure
                                                                                                       Continued on page 49
OHIO SECTION AWWA                                                                                                     page 49

Continued from page 48                       SUMMARY OF OPTIONS:                       An alternatives matrix was
1. Filter inspection reports con-                There are several main compo-      developed, based on discussions
ducted by the City in                        nents of the filtration process that   with City of Delaware personnel,
January/February 2000 showed                 are integral for efficient operation   identifying several general project
that media depths ranged from                and optimal performance. These         options. Rehabilitation of all fil-
20.5” to 24” (for filters 3–8) sug-          include the filter media, the back-    ters and filter-to-waste capabilities
gesting media loss during back-              wash system, the underdrain sys-       were recommended to achieve
wash operations.                             tem, and the control system.           lower turbid water and reduce the
   The filter inspections also               Typical recommended media              amount of backwashing that was
showed that the average back-                depths range from 24-30 inches         currently taking place.
wash rate across the six active fil-         suggesting that, at best, the filter
ters was 16.05 gallons per minute            depths at the plant are at the low-    Filter Media
per square foot (gpm/sf) with a              est end of this range. In addition,        There are several general filter
minimum of 15 gpm/sf and a                   backwash troughs would need to         media configurations to consider
maximum of 17.1 gpm/sf. The                  be repositioned such that the          in the design of a filtration system.
average backwash rate correlates             trough bottom elevation allows for     Some of these are monomedia,
                                                                                    dual-media, tri-media, and mixed
                                                                                    media. Ten States Standards
                                                                                    requires 24” – 30” of media depth
                                                                                    and a 50% bed expansion during
                                                                                    backwashing. Monomedia filters
                                                                                    are constructed of only sand.
                                                                                    Dual-media filters traditionally
                                                                                    consist of a layer of anthracite
                                                                                    above a layer of sand. Tri-media
                                                                                    filters, used primarily for
                                                                                    advanced treatment facilities, can
                                                                                    provide a layer of garnet under
                                                                                    the sand layer, which increases the
                                                                                    cost but can produce lower tur-
                                                                                    bidities. Mixed media filtration is
                                                                                    used in some proprietary designs
                                                                                    but is less common. Dual-media
                                                                                    filters are the most common for
                                                                                    water treatment applications since
                                                                                    they allow higher filtration rates
                                                                                    and longer filter runs, as com-
                                                                                    pared to monomedia sand filters.
                                                                                        Based on the elevation con-
                         Figure 1 - Typical Pipe Header-Lateral                     straints of the filter boxes, it was
                                                                                    recommended that the current
                                                                                    media be replaced with 14-18
to an average bed expansion of               a 50% bed expansion during back-       inches of anthracite above 12 inch-
only 4-inches or an 18% bed                  wash operations.                       es of sand. A higher percentage of
expansion. The maximum bed                       Since the overall dimensions of    bed expansion than currently
expansion was reported at 5” or              the filter boxes could not be          exists necessitated raising the fil-
22% bed expansion. By compari-               increased, the filter rehabilitation   ter troughs a minimum of 10” to a
son, Ten States Standards recom-             was summarized into the follow-        maximum of 16”, depending on
mends the ability to achieve a               ing key choices:                       the selected depth of media.
backwash rate of 20 gpm/sf (or                   Provide a new underdrain sys-      Concrete would need to be added
more) to achieve a 50% bed expan-            tem or retain the original system;     to the top of the gullet walls in fil-
sion during backwash.                            Retain a water only backwash       ters 1-4 to achieve the higher ele-
    Maximum filtration rates for             or modify to an air/water back-        vation.
the facility are currently rated at 4        wash;
gpm/sf. At 4 gpm/sf, the facility                Provide new media for filters 1    Underdrain Options
would have the potential to treat            & 2 only or provide new media for         The primary purpose of the
8.0 MGD with filters #1 & #2 back            all filters; and                       underdrains is to support the filter
in service or 1.0 MGD per filter.                Provide a filter-to-waste sys-     media, collect the filtered water,
This equates to a 33% increase in            tem including piping/valves, and       and convey it to the clearwell.
capacity potential.                          pump, if necessary.                    The secondary purpose, equally as
                                                                                                            Continued on page 50
page 50                                                                                                    SUMMER 2004

Continued from page 49                    replace the use of a gravel support     gravel becoming clogged.
important, is to evenly distribute        system. The primary benefit of a        However, due to the small open-
the backwash water. In order to           support cap is that it significantly    ings in the support cap, care must
accommodate the deeper media              reduces the overall filter elevation,   be exercised to ensure that the
                                                                                  feed water to the filters is stable
                                                                                  (non-depositing) so that the cap
                                                                                  does not clog. Unlike support
                                                                                  gravel, the cap cannot easily be
                                                                                  cleaned without the use of acid
                                                                                  and considerable effort. A mini-
                                                                                  mum stabilization time of 40 min-
                                                                                  utes is recommended to achieve
                                                                                  consistent precipitation of excess
                                                                                  calcium carbonate in the pre-filter
                                                                                  settling unit. The settling tank at
                                                                                  Delaware provides an approxi-
                                                                                  mate 50-minute stabilization peri-
                                                                                  od, which suggests that the pre-fil-
                                                                                  tered water would be sufficiently
                                                                                  stable, provided that adequate
                                                                                  CO2 is added for pH adjustment.
                                                                                  However, it was recommended
                                                                                  that water samples be taken from
                                                                                  the settling basins and Langelier
                                                                                  Saturation Index (LSI) be calculat-
                                                                                  ed to determine the water stabili-
                                                                                  ty.
                     Figure 2 - Typical Dual-Header Lateral
                                                                                  Backwash Options
                                                                                     The traditional method of filter
bed in conjunction with allowing          allowing for more freeboard area        cleaning is to bring water up from
an increased bed expansion dur-           and/or filtering media, as illus-       the bottom of the filter bed at a
ing backwashing, it was para-             trated in Figure 3. Secondly, it        rate sufficient to fluidize the
mount that the underdrain system          eliminates the potential of the         media and shear off the floc.
be as shallow as possible. An
alternative to the current gravel
support system would need to be
investigated. The design engi-
neers recommended low profile
dual-lateral underdrain blocks
with a media support cap. The
nominal height of the underdrain
block is 9 inches.
    The dual-lateral system
employs a feeder lateral and two
parallel compensating laterals
(Figure 2). Control orifices in the
feeder lateral distribute washwa-
ter into the compensating laterals.
Automatic and complete equaliza-
tion of pressure is achieved before
entering the filter, which creates
uniform discharge along the
length of the underdrain. The
dual-lateral design also provides a
distinctive ability to uniformly
distribute air.
    Most manufactures of the dual-
lateral underdrain offer a compos-                 Figure 3 - Typical Dual-Media Filter with IMS Cap
ite support cap (i.e., IMS) to
                                                                                                         Continued on page 51
OHIO SECTION AWWA                                                                                                   page 51

Continued from page 50                      oughly remove mudballs nor clean       AIR & WATER WATER ONLY
Employing upward backwash                   the entire bed.                            The hydraulics of the existing
flow alone is not the most effec-              The process of utilizing air        washwater conveyance system
tive cleaning mechanism because             scouring in place of surface wash-     was analyzed to determine the
the shearing action may not be              ing has become widely used in          maximum possible backwash rate
adequate to remove chemical floc.           Europe and the United States. Air      for filter #8 (worst case) based on
As a result, floc buildup over time                                                the headlosses of the system. The
                                                                                   maximum possible “worst case”
                         Table 2 – Typical Backwash Sequence                       backwash rate for filter #8, when
                                                                                   the backwash holding tank is at
                                                                                   overflow level, was calculated to
           AIR & WATER                           WATER ONLY                        be 12.5 gpm/sf. Backwash rates
      Air Only       2 min               ---            ---                        for filters 1-7 would therefore be
      (4 scfm/sf)                                                                  ≥12.5 gpm/sf since fewer head-
      Air/Water      3 min               Low Wash            2 min                 losses exist. If, however, the hold-
                                                                                   ing tank overflow level is lowered,
      (4 scfm/5 gpm)                     (7 gpm/sf)                                the backwash rate can be
      Water Ramp to 1 min                High Wash           15 min                increased to16.0 gpm/sf without
      High Wash                          (15 gpm/sf)                               the filter water level rising above
      (5 gpm/sf)                                                                   the troughs.
      High Wash      5 min               Low Wash            3 min                     By raising the troughs one foot,
                                                                                   the maximum possible backwash
      (15 gpm/sf)                        (7 gpm/sf)                                rate for filter #8 would increase to
          105 gal/sf               WATER USAGE                 290 gal/sf          17.4 gpm/sf (using the revised
                                                                                   overflow elevation). Therefore, it
                                                                                   appeared that the backwash
                                                                                   hydraulics would be sufficient
can cause “mudball” formation,              scouring provides a more vigor-        without further plant improve-
which will hinder the filter per-           ous agitation at the media/floc        ments. It is important to note that
formance. Enhanced versions of              interface. The vigorous agitation      block-type underdrains with the
water backwash include the addi-            results in a greater potential for     support cap option have inherent-
tion of a surface wash or air scour.        the media particles to collide, thus   ly similar headlosses as a pipe
    A surface wash is commonly              “releasing” the floc at a higher       header-lateral underdrain with
utilized to alleviate the formation         rate. An added benefit is that less    gravel support.
of mudballs. The surface washer             backwash water is required and
is normally turned on for 1 or 2            cleaning times are reduced, as         Controls
minutes to scour the media sur-             shown in Table 2. Using the water          The six operating filters at the
face at which time the upflow               usage rates listed in the table, the   water treatment plant are con-
backwash begins. The surface                Delaware WTP would have the            trolled from three consoles. All
washer remains on to scour the              potential to save 259,000 gallons of   filter operations are manually con-
deeper media. Surface washing               water per backwash cycle of all        trolled from these consoles. Each
greatly improves the cleaning               eight filters (32,375 gal/filter).     valve must be opened or closed
process; however, it may not thor-                                                 from the hand controls on the top




                                    Figure 4 - Proposed Filter-to-Waste System Retrofit
                                                                                                          Continued on page 52
page 52                                                                                                   SUMMER 2004

Continued from page 51                  involve removing the upper 12” x        inch outfall and provide a 12-inch
of the filter console. There is some    10” reducing 90o elbows leading         air gap to discharge the FTW to
limited monitoring of the filter        to the main 18” clean water efflu-      the existing backwash holding
console through the existing plant      ent pipe. In lieu of each 90o           sump. Lower the holding tank
programmable logic controller           elbow, a 12” tee and 12” x 8” 90o       overflow to a maximum elevation
(PLC) remote input/output (I/O)         elbow would be installed to             of 889.0 and restrain the filtration
rack in the filter room.                accommodate the FTW header              rate to 3 gpm/sf during wasting.
    Filter control improvements         pipe tie-in.
were discussed with the City WTP            Valves would be installed at            Control System – Provide a
personnel, however, are not dis-        each FTW branch to allow flow to        semi-automatic control system to
cussed in this article.                 the main header. The filter-to-         allow automatic sequencing of fil-
                                        waste header pipe would be retro-       ter backwashing after manual ini-
Filter-to-Waste                         fitted into the existing pipe gallery   tiation (manual operation will also
    The City of Delaware person-        to transfer the flow by gravity.        be available). This will be accom-
nel expressed interest in incorpo-          Initially, several sump options     plished with the following addi-
rating a filter-to-waste (FTW) sys-     were considered for intermediate        tional considerations:
tem at the water treatment plant.       “holding” before conveyance to              Provide a separate power dis-
The FTW would allow the plant           the final destination. The options      connect for each filter console,
operator to “waste” a certain           offered varying degrees of con-             Provide an uninterruptible
quantity of filtered water immedi-      struction effort and installation       power supply (UPS) for closing
ately following a backwash clean-       costs. Potential options included;      the filter effluent valves during
ing cycle. This would be accom-         (1) connecting to the washwater         power failure.
plished by providing separate pip-      holding tank via the 14” washwa-
ing from the effluent manifold of       ter header/drain, (2) using filter          Filter Box Coating System –
each filter. The “wastewater”           #1 as the holding basin, (3) using      Tnemec Type S epoxy system
from the FTW line can either be         an old closed-off area between fil-     applied to the interior of each fil-
conveyed to a holding area for          ters 4 & 5 as the holding basin, or     ter prior to reconstruction.
storage /disposal or sent back to       (4) constructing a new holding
the head of the plant. If the filter    basin adjacent to the filter build-         The City of Delaware bid the
piping is at a lower elevation than     ing.                                    filter rehabilitation project in April
the holding point, pumping is               Following supplementary             2004 with a base bid for recon-
usually required to achieve waste-      analysis, it was recommended to         struction of filters 1 and 2 and the
water conveyance. However, sys-         convey the FTW product to the 14-       filter to waste system.
tems can be designed to transfer        inch washwater header by gravity        Additionally, several alternates
the FTW by gravity from each fil-       via an 8-inch PVC line. In order        were offered including complete
ter to a holding tank or structure      for this to work hydraulically, the     filter rehabilitation of the existing
for future pumping to the final         overflow pipe in the holding basin      operational units on a filter pair
destination.                            would have to be lowered to 889 ft      basis.
    During a filter-to-waste run,       or less to guarantee the maximum
the filter influent valve is opened,    water level, and the maximum fil-
the filtered water effluent (to         tration rate during FTW must be
clearwell) and backwash effluent        held at 3 gpm/sf.
valves are closed, and the FTW
valve is opened. The FTW run-           SUMMARY and RECOMMEN-
time can be developed from tur-         DATIONS:
bidity measurements taken when
the filter is placed back in service,      Based on the preceding vari-
essentially stopping once the tur-      ables and discussions with the
bidity has reached effluent crite-      WTP staff, the following filter
ria, but can range from 5-15 min-       repairs were recommended:
utes at a filtration rate approxi-
mately equal to the filter influent        Filter Rehab Option – Provide
flow. A turbidimeter can be             low profile dual-lateral under-
placed on the common FTW line           drains, new filter media (18”
to monitor turbidity for determi-       anthracite, 12” sand), new
nation of an appropriate runtime.       troughs, and water/air backwash
    The filter-to-waste system          system for all eight filters.
would have to be tied-in to each
filters effluent piping. The simple        Filter-to-Waste (FTW) –Utilize
configuration (Figure 4) would          an 8-inch header reducing to a 6-

				
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