Rainwater collection

Testing at EWEB

Prototype filter

Methodology

1. Collect water samples
   • Rainwater at Moonshadow Drive from following locations
     metal roof
     plumbing
     cistern
     tap water
     
   • Rainwater from a more typical roof construction for comparison (asphalt shingles on a hipped roof)
     shingled roof

2. Test samples at EWEB for a baseline profile
   • pH
   • Turbidity
   • Conductivity
   • Hardness
   • Total Suspended Solids
   • Coliform Count

3. Combine Moonshadow Samples (from roof and cistern inlet) with dirt and leaves to simulate a "first flush" sample.

4. Split sample while pouring through a slow sand filter fabricated as a prototype for Moonshadow Drive design.

5. Return to EWEB to test pre- and post-filtered samples for total suspended solids.

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Rainwater Harvesting is a Vital Signs Case Study
prepared by Angela Matt and Joshua Cohen, Spring 2001.