Allegiance Water Management 

• The rainwater that falls on your roof and property is essentially free.  All it takes is a method to harvest it into a tank or cistern for later use.
• Rainwater harvesting can be a great educational tool to get people to recognize their individual or household water usage.  This can get them to start conserving water in other areas around their home.
• For communities that rely on imported water to supply their needs, collecting rainwater that falls naturally in the community can reduce the need for imported water.
• Rainwater harvesting helps utilities reduce peak demands during summer months, saving treated water for more important and appropriate water uses.
• While rainwater can be a perfect primary water source for many uses and situations, it is also a great backup water supply for emergency situations.

• Rainwater harvesting can reduce stormwater runoff from a property.  The elimination of runoff can reduce contamination of surface water with pesticides, sediment, metals, and fertilizers.
• By reducing stormwater runoff, rainwater harvesting can reduce a storm’s peak flow volume and velocity in local creeks, streams, and rivers, thereby reducing the potential for streambank erosion.
• Rainwater harvesting systems can be employed as simple and effective methods to meet a municipality’s stormwater management program requirements of individual properties.
• It is an excellent source of water for plants and landscape irrigation since it has no chemicals such as fluoride and chloramines (chlorine).