See if their equipment looks well-maintained or old and beat up. Their equipment is a representation of their company and how they clean. Make sure their filtration unit is big enough for a cleaning of a parking structure as well. Most garages of 300,000 square feet will have more than 50 to 300 gallons of sludge. If their filtration unit has a capacity of 60 gallons, then most likely it is undersized for the job.
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People concerned with the environment and global warming usually try to reduce their carbon output by increasing their home's energy efficiency and driving less. Some start by calculating their carbon footprint to set a benchmark -- like a weigh-in before a diet.A carbon footprint is simply a figure -- usually a monthly or annual total of CO2 output measured in tons.Web sites with carbon calculators turn easy-to-supply information like annual mileage and monthly power usage into a measurable tonnage of carbon.ome start by calculating their carbon footprint to set a benchmark -- like a weigh-in before a diet. A carbon footprint is simply a figure -- usually a monthly or annual total of CO2 output measured in tons.