Water 

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Water Disaster Center handbook (pdf)
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Puralytics' Bill of Goods (pdf)

Water Distribution Center (WDC)

The Roddenberry Disaster Water Shield (DWS) covers everything from water purification to water distribution. Once the Team is settled in at base camp, we will begin setting up a Water Distribution Center (WDC). This is where water will be sourced, purified and dispensed. The site will be secure, lit, sheltered and outfitted with clear informational signage. 

In addition to addressing immediate needs, there is an economic empowerment component to the plan. Local entrepreneurs will be trained to take over the operation of the system after the DRT departs and reconstruction has begun. We leave the best of the purification system behind for long-term use.

Set Up: 

  1. Sourcing: Identify freshwater sources, determine who owns the water and surrounding land and secure permission to set up the WDC (preliminary assessments from partner organizations).
  2. Siting: Set up within walking distance of a displaced population center for easy access by survivors.  
  3. Logistics: Site must have driveway nearby for equipment offload and assembly and a defined pathway for entry and exit. 
  4. Power: Ready access to fuel for generator(s). Generators must meet noise standards and allowed both safe and short wire runs.
  5. Shelter / Lighting / Security: Ensure shelter for WDC staff and equipment, install lighting and develop security protocols.
  6. Signage / PA: Secure permission for signage, determine which languages to use and what icons are best understood by the local population. Use a megaphone for verbal instructions to survivors. 
  7. Distribution protocols: Develop systems for the orderly distribution of water, the disinfection of re-usable watertight one gallon Ziploc bags, and for tracking recipients. In many cases, one person will be sent to collect a family's   allotment. 
  8. Water preparation: Run water through our Stage 1 with ultrafiltration, high-intensity UV, and ion exchangers for high-volume Level 1 emergency-acceptable water production.
  9. Puralytics Shield: Later run water through the full Stage 2 system to remove fuel residues, biological pathogens and toxic metals
  10. Storage: Transfer purified water to a clean tank for storage and distribution.

Water Requirements

There are a number of tools for assessing water quality that we will be using, including Water Canary. Water must fall within these parameters: 

 • Fresh water (not salt)
 • pH between 6 and 10
 • Temperature between 41F and 104F
 • Iron < 0.6mg/L
 • Hardness <120mg/L
 • Manganese <0.05mg/L
 • Sulfate <10ppm
 • Phosphate <10ppm
 • Turbidity <5 NTU *  
 • Surfactants <0.05mg/L
 • Chlorine <2.0mg/L
 • BOD and TOC <4mg/L
 • Dissolved Oxygen >4mg/L 

* Pre-Shield filters can readily reduce turbidity to within requirements

Power Requirements

Total Load: 1,300 watts 

 • Puralytics Shield: 570 watts
 • LED area lighting: 10 watts
 • Source pump: 400 watts max load
 • Pre-filter pump: 100 watts at 3 liters/min
 • Post-filter pump: 100 watts at 3 liters/min
 • Cell phone charging: 60 watts for 4 cell phones at a time
 • Laptop charging: 60 watts for two laptops at a time  

Spare Parts 

We will have spare parts for every piece of equipment: Bill of Goods (pdf).