Labs Measurement Pages

Our goal for 2013 is to clearly report on the work we have been doing so it is accessible to the public. Our measurement pages are coming soon.

Key Questions

• How much used? What unit of measure?
• How much does the water cost?
• How much is used per person?
  • Define what is a person in the Green Garage.
    • Total number of people in the Business in Residence community on the first day of the month
    • Volunteers
• How does this compare to others, industry standards or/and last year?

Water Usage Statistics

Measurement Decisions

• Unit of measure = gallons (water dept measures in cu, where 1cu = 100 cubic feet = 728 gallons)
• Per person is the number of people that are in the Businesses in Residence
• What industry standard are you using...put in link here.

Sources of Water

• Our water comes from the City of Detroit Water and Sewerage Department, which gets its water from the Detroit River and Lake Huron.

Uses of Water

• Toilets (1.28 gal/flush)
• Sinks
  • Bathroom (0.5 gal/min + automated)
  • Kitchen
• Dishwasher (4 gal / load)
• Shower (2.5 gal/min shower head)
• Coffee / Drinking
• Outdoor watering. We harvest the water that we use for outdoor watering in 2 cisterns and only use city water when the other water is exhausted. Our goal is to use no city water for outdoor use.

Water Usage Charts

Green Garage Monthly Water Usage - Jan 2013

• Consistent with prior usage
• When compared with Jan of 2012, we used 2x the amount of water. Consider that we had only 5 businesses-in-residence at the time, and in Jan of 2013 we had 38 businesses.
• Average 35-40 guests every Friday

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Monthly Water Usage Chart - Jan 2013

• Water usage per person decreases as number of people in building grows
• The typical usage per person in office space is 25 gallons per day, and in federal buildings, 15 gallons per day. This means between 315-500 gallons per month. In January we averaged 50 gallons per month per person.

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