City & County of Honolulu 

Department of Environmental ServicesEnvironmental Services

Collection System MaintenanceMaintenance Division (CSM)

PUMP STATIONS

HWEA conferenceFebruary 4, 2015February 4, 0 5

Presentation Objectives / OutlinesPresentation Objectives / Outlines

• Promote general awareness of 67 pumpPromote general awareness of 67 pump stations under CSM’s maintenance jurisdiction

• Share introductory and interesting facts and l d CSM istats related to CSM pump stations

• Promote general awareness of past and present major condition assessment effortsp j

• Pump Station, exterior

• Pump Station, interiorPump Station, interior

• Pump Station, elevation view

• Pump Station Force Main (underground piping)

Trivia Question:  service area that passes through five City pump 

stations to reach treatment plantstations to reach treatment plant

Collection System Maintenance Division (CSM)y ( )

• Main office located in Halawa$ ll• FY14 operating expenses:  $22 million

– based on City budget and accounting reporting system

C ll ti t• Collection systems– Piping network with 44,600 manholes– 136,400 service laterals 

• Department reorg of July 2010:  transferred administrative responsibility of pump stations to CSM*

*2010 Reorg Details2010 Reorg Details• Transferred to CSM from WTD:

– Administrative responsibility of 67 pump stations– 30 pump station operator and supervisor positions

• Not transferred to CSM:– 20 City ENV pumping facilities 

• located within or adjacent to a wastewater treatment plant, or otherwise designated by department managementotherwise designated by department management 

– Trade craft and specialty procurement support positions

– SCADA center operationSCADA center operation

not covered in this presentation• “Low Pressure” Sewer Systems, aka grinder pumps

– 679 stations, mostly located in Laie

• Stormwater pumping or gate control facilities

• Pumping facilities being monitored by ENV SCADA t b t d d t d b th Citcenter but owned and operated by other City 

departments or private entities.  

first pump station – Kakaako, built in 1900• Replaced by Ala Moana#1 in 1950’s• Replaced by Ala Moana#1 in 1950 s.

Station Count:  Treatment Plant Flow Basin

Organizational Management DistrictsOrganizational Management DistrictsCOUNT

METRO DISTRICT 19Sand Island WWTP flow basinEast Honolulu WWTP (private) flow basinHonouliuli WWTP flow basin

Only:  Halawa WaimaluPacific Palisades

LEEWARD DISTRICT 23H li li WWTP fl b iHonouliuli WWTP flow basin

Except: Halawa WaimaluPacific Palisades

Waianae WWTP flow basinWahiawa WWTP flow basin

WINDWARD DISTRICT 25Kailua WWTP flow basinWaimanalo WWTP flow basin

Service Age*g*date of new station if built to replace existing of same name

60

70

80

Age

30

40

50

60

Ave = 39 years

0

10

20

30

Age

Note: not all 67 station names are shown on y-axis

Station Count: Pump Motor Unit QuantityStation Count:  Pump Motor Unit Quantity

Total of 173 pump motor units

Static Head of Pumpingp gElevation difference between pump suction and discharge

St ti H d (ft)

120.00

140.00

160.00

Static Head (ft)

60.00

80.00

100.00

Ave = 35’

0.00

20.00

40.00

o rk ty o 2 ki 1 ni ni ai es u nt u et ry 2 h u et ty ts o es es ve 5 ce rk et 2 rk ve ei

Static Head (ft)

Waipi

aiaw

a Indu

stria

l Par

Makakilo

 Cit

Kukano

n

t Beach Resort N

o. 

Waikapo

k

t Beach Resort N

o. 

Laen

a n

Mililan

Punawa

Maunawili Estate

Waimal

Alala Po

i n

Uwal

Hart Stre e

Ewa Gen

tr

Ewa Gen

try No. 

Ewa Be

ac

Waipah

Nakula Stree

Pearl Cit

Kailua He

ight

Miomi

Enchanted Lak e

West Loch Estate

Coconu

t Grov

ohe Ba

y South No. 

Ohai Plac

Moana

 Par

Awa Stree

Kane

ohe Ba

y No. 

sland

 Indu

stria

l Pa r

Aala Driv

Lualuale

Wa

West

West

Kane

Sand

 I

Note: not all 67 station names are shown on y-axis

Station Count: Force Main QuantityStation Count:  Force Main Quantity 

Station Count:  Cathodic Corrosion i f iProtection System for Force Main

Note: new pipe materials and construction methods have reduced need for cathodic protection system

Cathodic Protection Rectifier and Anode Stations

Station Count:  Variable Speed Electric l fMotor Control for At Least A Pump

Trivia Question:  station with Flowmatchervariable speed electric motor control

Answer:W i iWaipio WWPS

Station Count:l iSCADA Remote Telemetry Unit Type

Average Daily Electricity Usageg y y g

7000.00

Kilowatt‐Hour

4000.00

5000.00

6000.00

1000.00

2000.00

3000.00

KWH/Day

0.00

average daily electricity cost = $12k, annual cost = $12k x 365 = $4.38 million

Note: not all 67 station names are shown on y-axis

g y y

Trivia Question:  station that is a Smith & Loveless package pump station

Answer:Makakilo City yWWPS

Major Condition Assessment Efforts:Pre‐1994 EPA Consent Decree

• 1944 Metcalf & Eddy1944 Metcalf & Eddy– 5 stations

• 1961• Belt Collins / Kennedy Engineers• Austin Tsutsumi

– 6 (South) + 4 (North) = 10 stations( ) ( )

Major Condition Assessment Efforts:Post 1994 EPA Consent DecreePost‐1994 EPA Consent Decree

• 1994‐2012:  Fukunaga & Associatesg– Force Main Condition Assessment Program, 2004– Pump Station O&MManuals 2012Pump Station O&M Manuals, 2012– Facility Spill Contingency Plans, 2012

• 2006‐2008:  City in‐house condition assessment led bycondition assessment led byWTD Asset Management office– Inhouse reports / data

Major Condition Assessment Efforts:Post 1994 EPA Consent DecreePost‐1994 EPA Consent Decree

• 2007‐2010:  CH2M Hill– program management– Long Term Plan 2008Long Term Plan, 2008– Pump Station Assessment Methodologies, 2010

• 2010‐2012:  Brown & CaldwellEl t i l & I&C S t C diti A t 2012– Electrical & I&C Systems Condition Assessment, 2012

– extensive photo database

Major Condition Assessment Efforts:Post 1994 EPA Consent DecreePost‐1994 EPA Consent Decree

• 2010‐2015:  HDR– program management– Comprehensive asset inventorying – Condition assessment for selective high priority force mains– Force Main Condition Assessment Procedures, 2011– Force Main Performance Testing Plan, 2011– Pump Station SCADA Master Plan, 2013– Pump Station SOP (for operator) , 2014

• 2011‐ongoing:  URS– Island wide pump station condition assessment

• 2011‐ongoing:  Belt Collins– Island wide force main condition assessment

Presentation PauPresentation Pau

Acknowledgement & Mahalo:

Frank Doyle &yAllen Youngpresentation review

Kelly Kamisato,data compilation supportp pp

Edmund Lung &Ron Slausonpermission to use selective photos in presentation

Questions?

p

M A H A L O