This document discusses strategies for increasing water resiliency at facilities. It covers topics like demand reduction through improved efficiency of domestic water usage. It also discusses process water efficiency through water balancing and reuse of non-potable water sources. Alternative water sources like rainwater harvesting and various desalination techniques are presented. The importance of a holistic water resiliency approach is emphasized to ensure reliability of water supplies and continuity of critical operations. Implementing resiliency comes with challenges like increased energy demands, regulatory compliance, and requiring cross-functional support.

1. Our People Make the DifferenceExceeding Expectations
A Path To Water Resilient Facilities
Edward J. Brady CEM, LEED-AP, ARCSA AP

2. “Water Is Free” – Correct?
202/26/2019Exceeding Expectations

3. Drivers for Rate Increase
302/26/2019Exceeding Expectations

4. 2018 Disasters (Weather/Climate Related)
402/26/2019Exceeding Expectations

5. Infrastructure Rate Increase
502/26/2019Exceeding Expectations
Do anthropogenic activities have a significant
impact on the changes in weather?
How much is attributed to normal planetary and
galactic cycles?

6. Water Scarcity and Global Impact
602/28/2019Exceeding Expectations

7. Before Resiliency –
Focus was Water Efficiency (Demand Reduction)
702/28/2019Exceeding Expectations

8. Demand Reduction
802/28/2019Exceeding Expectations

9. Have we Reached the Limits in Domestic
Water Reduction Strategies?
902/28/2019Exceeding Expectations

10. Being too Aggressive with Domestic Water
Efficiency can have Unintended Consequences.
1002/26/2019Exceeding Expectations
• Flush Volume < 1.28 gallon per flush (gpf)
• Incorrect Slope on Horizontal Waste Lines
• Slope Decreases with Building Settling
• Horizontal Run Lengths too Long
• Toilet Tissue Density
Waste Lines were not Designed to Function with Low Flow Devices

11. Transition to Process Water Efficiency
1102/28/2019Exceeding Expectations
Groundwater Re-Use / Scrubber Feed Water
3 hp Pumps with Data Logger
(35 gpm /16 hrs/day =33 kGals / day)
Scrubber
Item Qty (Running)
W/S Rate
$/kGal
Combined Avg Flow
Rate (gpm)
Total Consumption
(gal/.yr)
Harrington Scrubbers 3 $6.70 11 5,781,600
Approx 20 gpm to pit = ~ 10 M gpy

12. Process Water Efficiency (Water Balance)
1202/26/2019Exceeding Expectations

13. Process Water Efficiency
1302/28/2019Exceeding Expectations

14. Process Water Efficiency
1402/26/2019Exceeding Expectations

15. Process Water Efficiency
1502/26/2019Exceeding Expectations

16. Process Water Efficiency
1602/26/2019Exceeding Expectations
Closed Loop Heat Extraction System
37 Million Gallons . year
Cooling Load ~ 300,000 Btu/hr

17. Process Water Efficiency
1702/26/2019Exceeding Expectations

18. Process Water Efficiency
1802/26/2019Exceeding Expectations

19. Process Water Efficiency
1902/26/2019Exceeding Expectations

20. Alternate Water Sources - RWH
2002/26/2019Exceeding Expectations
Collecting, storing, and utilizing rainwater is
a sustainable way in helping protect your
local water quality from run-off, and
reduces overflow to the municipal storm
sewer system.
Rainwater can be used for :
• Irrigation for landscapes or gardens.
• Filling pools, ponds, water features, and
spas.
• Washing cars, trucks, trailers, boats, etc.
• Make-up water for commercial cooling
towers.
• Flushing Toilets (Net-Zero Army Bases)

21. Efficiency Conservation Resiliency
2102/26/2019Exceeding Expectations
• Water Efficiency: Using improved technologies and practices that deliver
equal or better service with less water.
• Water Conservation: Similar to Efficiency but actually use less water, typically
motivated by a drought or water shortage. You curtail water use by not
Watering the grass or washing your car. (Shower every other day?)
• Water Resiliency? The ability to avoid, prepare for, minimize, adapt to, and
recover from anticipated and unanticipated disruptions in critical services to ensure
continuation of Mission Critical tasks, Mission Essential operations and to rapidly
reestablish Mission Essential requirements.
It is Reliability and Security combined – a Backup to a Backup to a Backup.

22. Resiliency – Why all the Fuss?
• DOD relies on external sources to function (Commercial Utilities)
• Completely exposes all Mission Critical operations and Necessary Services to a
partial or complete shut-down, due to external threats.
Critical Facilities: Typical Threats
• Hospitals / Clinics
• Fire Departments
• Housing
• Police Stations
• Communications
• Refrigerated Storage
• Central plants
• Manufacturing/Production
• Fuel storage
• Etc.
2202/26/2019Exceeding Expectations

23. Water Balance –
Solar Powered Desalination (Electrodialysis-Photovoltaic Generator )
2302/26/2019Exceeding Expectations
Brackish or salty water is pumped from a source (sea water, ground water etc.),
then water runs through a filter to remove sand, and an activated carbon filter to
remove chemicals. Then it is pumped under (high) pressure through a series
of membranes. The membrane pores are extremely small (usually around 0.0001
micron), and only allows water molecules to pass through.
(No inverters, no batteries, no regulators – portable and low maintenance)

24. Traditional Desalination System
(Reverse Osmosis)
2402/26/2019Exceeding Expectations

25. Advanced Water Purification
2502/26/2019Exceeding Expectations
A four-step water purification system that is capable of treating sewage and
supplying meets the public health standards for potable water.
Recently earned approval by the California State Water Resources Control Board’s
Division of Drinking Water (DDW)

26. 2602/26/2019Exceeding Expectations

27. 2702/28/2019Exceeding Expectations
De-Salinator Prototype, Dubbed the ‘AquaSol’

28. Harvesting Drinking Water from Air
2802/28/2019Exceeding Expectations

29. Harvesting Drinking Water from Air
2902/28/2019Exceeding Expectations
Water Production: 2800 Gallons per day
Air to water generators condense outside
air & collects the water in a UV-protected
continuously ozonated holding tank.
Water drawn from the holding tank is
filtered through a series membrane
filtration and UV light.
(No additives needed or used)

30. Mobile / Temporary Solutions
3002/28/2019Exceeding Expectations

31. Considerations related to implementing Water Resiliency
• Will increase the Energy demand profile
• May require communications with the BAS and MDMS,
introducing cyberthreat concerns and substantial hurdles with
IT and communication security.
• Adherence to State and Local drinking water standards, and
continuous testing due to potential source water contamination
• Need contingency plans for potential ground water depletion.
• Requires a dedicated team, continuous training and the
potential for an on-site lab for water quality testing.
3102/28/2019Exceeding Expectations
** Must include ALL stakeholders related to ancillary support requirements,
from the Day 1 (concept stage) through implementation and operation**

32. To Be Continued ….
Thank You for Participating
Edward J. Brady CEM, LEED-AP, ARCSA AP
REM III – Redhorse Corporation