How much groundwater do we have? What's its general quality? How are ground water levels and quality changing over time? Sounds like simple questions to a thirsty human or world. But not so easily answered for groundwater scientists. Speakers will share the latest information on pilot testing of a National Ground Water Monitoring Network. Presenting authors will cover topics such as: • Monitoring network design • Sensor technology • Building and maintaining public and policymaker support for monitoring • Leveraging dollars and data through collaboration • Making the data accessible and useful • Decision-support tools.