The Colorado Division of Water Resources (DWR) provides a variety of Geographical Information System (GIS) and Mapping solutions, many of which are available for download or online viewing, free of charge.

It is the intent of this guide help purchased water systems determine their responsibilities and those of their suppliers. To determine the responsibilities of a purchased water system, the system must understand its relationship with the supply system from which it purchases water. A purchased water system is a type of consecutive system, but it may also be an integrated system, depending on its established agreement with the supply system.

Colorado Public Water Systems (serve 25 or more persons for 60 or more days per year), Non-Community Systems (consumers, NOT residents), Non-Transient (same non-resident users daily) Ground water source. Consumers expect, and Colorado law requires, that all public water systems provide consistently safe drinking. Systems must ensure that their water supply is safe for all consumers.