Elgin Equipment Group provides multiple options for 316b solutions so that we are equipped to provide equipment for a wide variety of sites.

1. EEG Water
316(b)

2. Summary of 316b
There are 544 U.S. power plants and several other facilities that will be affected
by 316(b). These facilities withdraw at least two million gallons per day of
cooling water.
The national requirements will be implemented through National Pollutant
Discharge Elimination System (NPDES) permits. It requires that existing
facilities that withdraw at least 25% of their water from an adjacentwaterbody
exclusively for cooling purposes reduce fish impingement.

3. EPA 316(b)
The EPA gives generators seven options for meeting “best
technology available (BTA)” requirements for reducing
impingement:
• Closed cycle cooling
• Velocity caps
• Modified traveling screens
• Seasonally deployed barrier nets

4. EPA 316(b)
Closed Cycle
Cooling
Modified Traveling Screens
Seasonally Deployed
Barrier Net
Velocity Caps
Drum Screens Tee Screens
Flat Panel
Screens
Aquatic Filter
Barrier

5. Cook Legacy 316(b) Scope
Product Description Highlights
Materials
Jacquelyn Coating Permanent metal coating that
resists bio-fouling
Effective, safe for the environment, permanent solution. Less
expensive than temporary coatings or building from other materials.
TIG-Welded Wedge Wire Durable, strong, & flat wedge wire Tougher & stronger than resistance weld, better for stringy debris &
ice than profile bar
Solutions
Tee or Drum Screen Cylindrical screens that don’t clog
or kill fish
New flow modifier is most efficient on the market, and can be scaled
for specific site.
HemiScreen Half cylinder screen for shallow
water
Offers good performance, and no moving parts
AirBurst System to deliver a controlled burst
of air to clean screens
Our experience ensures a system that works “out of the box” rather
than costly mechanical integration
IceBreak System to deliver intermittent air
near the intake to prevent icing
Integral add-on to the airburst system is more cost effective than
stand-alone. Our IceBreak algorithm supports efficient mixing.
Debris Jet System to deliver sparge of air to
halt debris
Bring screens to shallow water
Bubble Meter Monitors head loss across a screen Ensures that the screen is free of debris
Flow Blade Induces sweeping velocity in
stagnant water
Supports fish passage in estuarine or intermittent flow environments

6. Cost Comparison
Technology Site-Specific Cost (Million USD)
Wedge Wire Screens $3.5-$144
Aquatic Filter Barriers $9-72
Barrier Nets $0.1-$14
Modified Traveling Screens $0.3-$44

7. EPA 316(b)
Meeting impingement standards with Wedgewire screens:
1. Lower design velocity
2. Sensitivity analysis & standard orientations go here.

8. EPA 316(b)
Make it easy to install
Traveling screens - fit with civil work
Wedgewires - fit in the water body

9. Traveling Screen Considerations
• Velocity & resulting screen quantity
• Civil work for screen fit
• Civil work for additional bypass
• Ongoing operation & maintenance

10. Wedgewire Screen Considerations
• Velocity & resulting screen quantity
• Water body
• Water quality

11. Important Details: Flow modification
Old Flow Modifier
Velocity comparison

12. Feature Description
Ingersoll Rand Air Compressor Reliability of with industry leader
RAMA™ Control System and easy-to-use HMI Monitor and control the system in an intuitive manner
Icebreak™ System Control ice
Bubbler System Monitor head loss
AirBurst Systems

13. Literature Review
• Testing has been performed on wedgewire screens
for decades
• Alden Lab performed study of 0.5 and 1.0mm slot
wedgewire screens on behalf of EPRI
• Egg and larvae were excluded in most cases
considered
• The screen performance in estuarine environments
was impacted by the maximum slot velocity & the
ratio of maximum to slot velocity

14. Gunderboom MLES
MLES™ Aquatic Filter Barrier | Gunderboom
Basic System :
• Full-water-depth filter curtain comprised of treated polypropylene/polyester fabric
• Suspended by floatation billets on the water's surface
• Patented systems

15. EPA 316(b)
MLES™ Aquatic Filter Barrier | Gunderboom
Flotation
Engineered for current
water level and service
life
Mooring system/
Structural support
Anchors design to the
substrate
Filter material
Strong, precise, and
durable porous filter
Strengthening
Elements
The “skeleton” of the
system

16. EEG TotalWater Supply
Intake Structure
Equipment
Turnkey Solutions Water supply on demand

17. EEG TotalWater Supply
Intake Structure
Equipment
Turnkey Solutions Water supply on demand
SCOPE
• Design
• Equipment
• Commissioning
• Design
• Equipment
• Commissioning
• Installation
• Design
• Equipment
• Commissioning
• Installation
• Service
• “Selling Water”

18. Case Study:Traveling Screen Retrofit
Project:
Cooling water intake
system
Problem:
Fish concerns &
maintenance on
traveling screens
Solution:
New wedgewire screen
with low velocity to
avoid clogging.
AirBurst™ System
Installation
Payback:
24 months

19. Case Study: RawWater Intake
Project:
Raw water supply for a
complicated waterway
Problem:
The system required
complicated screen:pump
interaction
Solution:
Turnkey design led by the pump
team performed the conceptual
design, site design, modeling,
and execution
Benefit:
Fast project performed under
planned budget

20. Case Study: Flat Panel Wedgewire Array
Project:
Fish Passage Screening
Problem:
A hydro project required fish
friendly screening for a fish
attraction facility
Solution:
A bank of wedgewire
screens with a custom
airburst system
Benefit:
Successful project with
“best screens USACE had
ever seen” ahead of
schedule

21. Case Study: 316(b) for Oil & Gas
Project:
Oil & Gas Terminal
Problem:
An Oil & Gas developer was
preparing an offshore terminal.
Solution:
A CFD analysis of the site &
development of an innovative
sensor scheme. Also provided
technical & communication
strategy support.
Benefit:
Practical & constructable
modification to the screen to
comply with regulations.

22. Case Study:Thermal Power Hatchery Intake
Project:
Thermal Power Intake
Problem:
A regional power utility
needed to modify their intake
structure to comply with
regulation.
Solution:
A turnkey equipment package
including screens, piping, and
an airburst.
Benefit:
Successful project integrated
with existing work ahead of
schedule

23. Case Study:Aquatic Filter Barrier
Project:
Fish protective filter for art
project
Problem:
Fish concerns for public art
project
Solution:
Aquatic filter barrier system to
protect fish eggs & larvae
Benefit:
Enabled project to progress