APWA Tech Session 2014

1. 1
Permanent Backup
Lift Station Pumps
David Perry, Florida Region Sales Engineer
Brian Lee, South Atlantic Region Sales Engineer
APWA Technical Session July 9, 2014

2. 2
Topics
• What are Backup Lift Station Pumps
• Why Backup Lift Station Pumps are Needed
• Backup Pumps vs Generators
• Case Studies and Photos
• Conceptual Back-up Drawings
Backup Lift Station Pumps

3. 3
What are backup lift station pumps?
They are permanently
mounted, independently-
powered pumps that are
connected to the lift station
and ready to handle the flows
should a problem arise with
the electric-driven pumps.
Back-up Lift Station Pumps

4. 4
Requirements of a Backup Lift Station Pump
• Fully independent power source such as diesel engine,
gasoline, LP gas, natural gas, etc.
• Sewage handling pump that can meet lift station flows
& heads
• Fast, reliable automatic priming and re-priming
• Automatic start & stop capability/run unattended
Backup Lift Station Pumps

5. 5
Requirements of a Backup Lift Station Pump
• Able to sit idle for long periods of time even in cold
climates and still startup without any issues (battery
charging systems and heaters)
• Able to run for prolong periods between refueling
• Low noise level
• Able to communicate with lift station SCADA system
Backup Lift Station Pumps

6. NEED FORNEED FOR
STANDBY PUMPSSTANDBY PUMPS
Backup Lift Station Pumps

7. Pumps installed in parallel with
one pump serving as the
primary (lead) and the other
serving as a backup (lag).
The back-up pump operates
the primary pump becomes
inoperable or if the flows
increase beyond the capability
of the single pump.
Triplex and Quad stations have
multiple back-ups due to
exponential increases in peak
flows
Backup Lift Station Pumps
A Typical Lift Station

8. What if:
•Lift station loses power?
•Storm debris or accidents
disconnect/destroys panels?
•Lift station accessories
malfunction?
•Lift station pumps require
service or repair?
•Flows exceed the lift station’s
capacity?
Backup Lift Station Pumps

9. • Threaten drinking water
• Spoil recreation
• Hinder economic values
Impact of Sewage Spills at Lift Stations
Backup Lift Station Pumps
• Harm wildlife
• Costly to clean up
• Negative Public Opinion

10. Miami-Dade County, FL
High Dollar Lawsuit for Sewage Spills,
2013
• Between January 2007 to May 2013, Miami Dade County reported an approximately
211 Sanitary Sewer Overflows totaling more than 51 million gallons
• The US-EPA, US-DOJ, and FLA-DEP filed suit against the County for numerous
violations of federal and state pollution laws.
• The lawsuit states the County is violating federal and state water pollution laws by
“failing to adopt adequate measures to reduce spills”.
• In June 2013, the county reported a settlement of approximately $978,100.00
and were mandated to conduct a supplemental environmental infrastructure project
totaling over $2 million.
Backup Lift Station Pumps

11. Maui County, HA
Million Dollar Lawsuit for Sewage Spills, 2008
• The EPA, USA DOJ and the Hawaii Department of Health filed a complaint
against the County of Maui for violations of federal and state pollution laws.
• The complaint was filed to stop repeated spills due to more than 330 reported
spills into waterways and streets since 1992.
• The violations are subject to a fine of $3,200 per violation, totaling over $1
million in fines.
• The Justice Department contends that the County is violating federal and state
water pollution laws by “failing to adopt adequate measures to reduce spills”.
Backup Lift Station Pumps

12. City of Burlingame, CA
Faces Suit Over Raw Sewage Spills, 2007
• City of Burlingame was sued for excessive discharge of raw sewage flowing
into streets, backyards, businesses and San Francisco Bay.
• The suit described 250 sewer system overflows between 2002 and 2007.
• Suit was filed after learning of the excessive number of sewage spills reported
to the Bay Area Regional Water Quality Control Board, which is tasked with
regulating local water agencies on behalf of the EPA.
• In 2006, the Bay Area Regional Water Quality Control Board fined the City
of Burlingame a record $516,000.00 for spilling raw sewage into
the Bay 146 times since 2003.
Backup Lift Station Pumps

13. LA Faces Fines for Sewer Spills
• U.S. District Judge Ronald S.W. Lew found the City of Los Angeles
liable for 297 sewage spills over the course of a year and orders
the City to pay up to $8 million in fines.
• Fines up to $27,500 per spill may continue to mount with every
violation of the Federal Clean Water Act.
• City of San Diego, under an administrative order from the EPA,
recently increased residential sewer fees to pay for upgrades to
reduce a pattern of spills similar to those in Los Angeles.
• City of Atlanta, City of New Orleans, and City of Baltimore
all faced similar fines due to frequent SSO
Backup Lift Station Pumps

14. STAND-BY GENERATORSTAND-BY GENERATOR
VS.VS.
STAND-BY PUMPSTAND-BY PUMP
Backup Lift Station Pumps

15. Provides backup power to the lift station in the event of
power failure.
Stand-by Generator
Backup Lift Station Pumps

16. Back-Up GeneratorBack-Up Generator
RequirementsRequirements
• During power outages, there are 7During power outages, there are 7
stages involved in emergency back-upstages involved in emergency back-up
generator operations:generator operations:
1) Transfer switch: Signals Power Loss1) Transfer switch: Signals Power Loss
2) Diesel engine: Source of energy2) Diesel engine: Source of energy
3) Generator: Produces electric power required3) Generator: Produces electric power required
4) L/S Pump control panel/circuit breaker/cables:4) L/S Pump control panel/circuit breaker/cables:
transfers gen-set power to lift station pump motortransfers gen-set power to lift station pump motor
5) L/S Pump Motor: powers the lift station pumps5) L/S Pump Motor: powers the lift station pumps
6) Submersible pump: moves the waste water6) Submersible pump: moves the waste water
7) Discharge Piping and Valve System: transfers7) Discharge Piping and Valve System: transfers
waste water from wet well to force mainwaste water from wet well to force main
Backup Lift Station Pumps

17. • Fully automatic system
• Reliable
• Can power other items
• No additional hoses/piping
• User friendly
Back-Up Generator AdvantagesBack-Up Generator Advantages
Backup Lift Station Pumps

18. Back-up GeneratorBack-up Generator
DisadvantagesDisadvantages
1) Power only1) Power only
2) Requires a certified electrician2) Requires a certified electrician
3) Annual load testing3) Annual load testing
4)4) Transfer switchTransfer switch
5) Double efficiency loss5) Double efficiency loss
6) Generator continuously runs6) Generator continuously runs
Backup Lift Station Pumps

19. • Works together with the generator as part of the
emergency power backup system.
• Monitors power supply and senses when utility
power is interrupted.
• When the utility power fails:
– automatically starts the engine and transfers
the load to the generator once the generator
has reached full power.
– Continues to monitor utility power and when
it is restored, automatically switches the load
from the generator back to the utility.
Backup Lift Station Pumps
Automatic Transfer Switch

20. Back-up GeneratorBack-up Generator
DisadvantagesDisadvantages
7) More Expensive Overall7) More Expensive Overall
8) Service or Repairs8) Service or Repairs
9) Unreliable power switching9) Unreliable power switching
accessories/connectionsaccessories/connections
10) Fixed speed operation only10) Fixed speed operation only
11) Must oversize generator11) Must oversize generator
Performance Curves

21. Backup Lift Station Pumps
Generator
Sizing
Chart

22. Back-up Generator Disadvantages: OperationalBack-up Generator Disadvantages: Operational
CostsCosts
• 60 HP Submersible Pump Application60 HP Submersible Pump Application
• Diesel Pump emergency operations:Diesel Pump emergency operations:
60 HP X 0.360 LB/HP-HR x 1 Gallon/7.3 LB X $4.00/Gallon x 8 Hours/Day =60 HP X 0.360 LB/HP-HR x 1 Gallon/7.3 LB X $4.00/Gallon x 8 Hours/Day =
$94.68 per Day of Diesel Fuel Costs$94.68 per Day of Diesel Fuel Costs
• Diesel Generator emergency operations requiresDiesel Generator emergency operations requires 3X3X submersible pump horsepowersubmersible pump horsepower
due to starting amperage requirement:due to starting amperage requirement:
180 HP X 0.360 LB/HP-HR x 1 Gallon/7.3 LB X $4.00/Gallon x 24 Hours/Day =180 HP X 0.360 LB/HP-HR x 1 Gallon/7.3 LB X $4.00/Gallon x 24 Hours/Day =
$852.16 per Day of Diesel Fuel Costs$852.16 per Day of Diesel Fuel Costs
Performance Curves

23. 23
Backup Pump
Suction Line
Discharge Line
Electric Submersible Lift Station Pumps
Backup Lift Station Pumps

24. Pump
Diesel
Engine
Priming
SystemFuel Tank
Basic Emergency Pump ComponentsBasic Emergency Pump Components
Auto
Start/Stop
Control
Panel
Backup Lift Station Pumps

25. Pump Back-upPump Back-up
AdvantagesAdvantages
1) Fully independent system1) Fully independent system
2) Fully automatic system2) Fully automatic system
3) Fuel efficient3) Fuel efficient
4) Lower acquisition cost4) Lower acquisition cost
5) Increased reliability5) Increased reliability
Backup Lift Station Pumps

26. Pump Back-up AdvantagesPump Back-up Advantages
6) Versatile6) Versatile
7) Less complicated7) Less complicated
8) Increased efficiency8) Increased efficiency
9) Increased flexibility9) Increased flexibility
10) Easy to Maintain10) Easy to Maintain
Backup Lift Station Pumps

27. Pump Back-upPump Back-up
AdvantagesAdvantages
11) Smaller footprint11) Smaller footprint
12) Economic12) Economic
13) User friendly13) User friendly
14) Temporary By-Pass Pumping14) Temporary By-Pass Pumping
Backup Lift Station Pumps

28. Pump Back-upPump Back-up
DisadvantagesDisadvantages
1) Requires additional piping1) Requires additional piping
2) Depth of wet well2) Depth of wet well
Backup Lift Station Pumps

29. Backup Lift Station Pumps

30. Backup Lift Station Pumps

31. 4 IMPORTANT FACTORS OF DESIGN
• Reliability of priming system
• Efficiency at required duty point
• ISO9001:2008 certified pump manufacturer
• Local design consultation/service/support
• Transparency of performance capabilities
Backup Lift Station Pumps

32. Additional AccessoriesAdditional Accessories
• 120 Volt or Solar Powered120 Volt or Solar Powered
Battery ChargersBattery Chargers
• SCADA Interface for 8 AlarmSCADA Interface for 8 Alarm
NotificationsNotifications
• Telemetry Messenger insideTelemetry Messenger inside
Pump Control PanelPump Control Panel
• Auto-Dialer SystemsAuto-Dialer Systems
• Double Walled Fuel Tanks:Double Walled Fuel Tanks:
UL-Listed or Non UL-ListedUL-Listed or Non UL-Listed
• Pressure Transducer, LevelPressure Transducer, Level
Transducer, or Auto StartTransducer, or Auto Start
FloatsFloats
Backup Lift Station Pumps

33. CASE STUDIES &CASE STUDIES &
INSTALLATIONSINSTALLATIONS
Backup Lift Station Pumps

34. Power Outage to Lift Station Causes
Sewage Backup in Residents’ Homes
• At least four homes experienced a sewage backup when the Dickinson
Road lift station lost power.
• The problem was traced back to a transformer that had blown and the
240-volt line feeding the pumps had been interrupted.
• The 110-volt line feeding the control panel was still in service, though.
• The automatic dialer alarm system did not activate with the interruption
of power because the control panel remained in service and the system
consequently did not recognize the failure of the pumps.
Courtesy of Chesterton Tribune
11/14/05
Backup Lift Station Pumps

35. Utility Company Uses Backup Pumps
for Lift Stations During Hurricanes
• Regional Utilities, a regional provider of water and sewer services to Walton
County, Florida operates 125 lift stations serving several hundred thousand
residents.
• In 2000, a strong Hurricane season struck the gulf coast causing widespread power
outages and heavy damage to the company’s lift stations.
• Lightning strikes and damage to generator control panels prevented backup
generators from operating.
• Regional Utilities decided to replace the generators with backup pumps.
• In 2004, the gulf coast was once again struck by a series of Hurricanes and this
time, all of their backup pumps were there to keep the flow of sewage moving
during the power outages resulting in zero spills.
Backup Lift Station Pumps

36. (59) Permanently Mounted,(59) Permanently Mounted,
Emergency back-up systems onEmergency back-up systems on
lift stations in Walton County, FLlift stations in Walton County, FL

37. (6) 4JSVM-DJDS-24T-MC(6) 4JSVM-DJDS-24T-MC
Oviedo, FLOviedo, FL

38. (3) 12JSCJ-DJDS-45H-UC in Camp LeJune, North Carolina

39. 4JSVM-DJDS-24T-DC4JSVM-DJDS-24T-DC
Sarasota, FLSarasota, FL

40. (14) 4JSCM-DJDS-3TNV-MC on Pump Stations in(14) 4JSCM-DJDS-3TNV-MC on Pump Stations in
North Port, FLNorth Port, FL

41. 6JSVE-DJDS-45T-DC
In Sebring, FL

42. 12JSCJ-DJDS-45H-MC12JSCJ-DJDS-45H-MC
Dorchester County, SCDorchester County, SC

43. (3) 4JSCM-DJDS-24T-MC(3) 4JSCM-DJDS-24T-MC
in Garden City, GAin Garden City, GA

44. Booster Pump Station in Pasco County, FL

45. 6,500 GPM Standby Pump in6,500 GPM Standby Pump in
Lee County, FLLee County, FL

46. Natural Gas Powered
4JSCM-DJDS-24T-MC
in Ohio

47. 12JSCJ-DJDS-45H-MC in Garden City, Georgia

55. 55
QUESTIONS?
Backup Lift Station Pumps