A View of Water-Use Data A Brief Compendium of Conveyance Based Water-Use Ideas Presented By

1. A View of Water-Use Data A Brief Compendium of Conveyance Based Water-Use Ideas Presented By Mark R. Nardi USGS Maryland, Delaware, D.C. Water Science Center Arc Hydro River Workgroup Austin Texas 02 December 2010 Via WebEX U.S. Department of the Interior U.S. Geological Survey

2. Basic Water-Use Questions* Where does our water come from? Where does it go? What is the water used for? Who is using it? How much is used? How do these facts change over time? * Grammar check deliberately ignored... Slide courtesy of Steve Tessler

3. Demand & Consumptive Use Pumping Station Dam Major user Intake Wellfield Withdrawal Withdrawal Septic Return Flow Surface Water body Water Treatment Plant Water Tower Interconnection Transfer River Main Supply Line Delivery Distribution & Sewer System Demand & Consumptive Use Return Flow Release Major users Main Sewer Line Discharge Pipe 2ND Distribution and Sewer System Wells and water-treatment plants Water Tower Wastewater Treatment Plant Transfer Main Sewer Line Pumping Station Schematic of human use of water Slide courtesy of Marilee Horn

4. Tracking the Flow of WaterSite to Site Destination Site Source Site Conveyance A conveyance is a link between two sites. Conveyances are one way. Slide courtesy of Todd Augenstein

5. Conveyance-Based Data Model How should we represent water-use data and activities? A Conveyance-based model can represent any water exchange activity between two objects - and promotes network / pathway thinking From A  To B Pairs of Sites are joined through unidirectional Conveyances for which water Transfer Quantities are recorded Site-Conveyance chains represent the Site-to-Site-to-Site transfers as a network of interconnected sites of various types, tracking water from its source to its final point of consumption or return “Water-use” contains the infrastructure elements that interact directly with the natural hydrologic system through withdrawals and returns, and also includes the various treatment, distribution, user/application, collection, consumption, loss, and gain entities. Slide courtesy of Steve Tessler

6. NJWaTrCore Conveyance Model Sites are paired to form unidirectional Conveyances for which Transfer volumes are recorded. Sites have Locations and Owners, and some interact with water Resources (surface- and ground-water) Slide courtesy of Steve Tessler based on work by Steve Domber (NJGS)

7. The logical basis for our water-use data schema can be thought of as a “link-node” system. (Tessler and others) Sources Distribution Demand Collection Return Qd Qd Qd Qd S1 D1 M1 C1 R1 A Qd S1 M1 C1 R1 D1 B S1 M2 C2 R2 D2 S1 M3 R3 C3 Qd

8. Conveyance Data Model used in SWUDS Consumptive Use Septic Discharge (to groundwater) Aquifer A Domestic use area A Municipal Wastewater Collection System Well 1 Permit A 15 23 Municipal Wastewater Permit 1 Discharge Pipe Public Water Supplier Distribution System Well 2 2 conveyance 16 Well 3 7 3 10 20 21 Industrial user A Aquifer B 17 Permit B Well 4 11 4 8 14 19 18 22 Well 5 5 Industrial Wastewater Permit Discharge Pipe Permit C Consumptive Use 9 Permit D River intake 12 13 Consumptive Use 6 Irrigation user A Well A Sales to other Public Supplier Permit E Well B Groundwater Return Flow 1 = Conveyance Number Slide courtesy of Marilee Horn

9. Common Site Types Facility Stream Well Intake/Diversion Outfall Treatment Slide courtesy of Todd Augenstein

10. Conveyance-Based Data Model Simple Water Network 2 Sites, 1 Conveyance A Site is any object that can be the Source or Target of a water Transfer. A Conveyance defines the Transfer direction and anchors the Volume details. Public Supply Well at a Water Treatment Plant Conceptual representation of a 2-Site, 1-Conveyance water-use network Slide courtesy of Todd Augenstein

11. Conveyance-Based Data Model Simple Water Network 4 Sites (3 Types), 4 Conveyances Water networks can be extended by defining and adding Sites and their unidirectional Conveyances Conceptual representation of a network of 4-sites, two of which can exchange water in either direction Slide courtesy of Todd Augenstein

12. Conveyance-Based Data Model A More Complex Water Network 14 Sites (5 Types, 3 Spatial Scales), 14 Conveyances (4 Types) Any complex water network can be represented by a collection of Sites/Conveyances. A ‘Site’ may also represent aggregate objects, such as purveyor area or ‘county livestock’ Slide courtesy of Todd Augenstein

13. Conveyance-Based Data Model ** There are Two Main Classes of Sites ** Resource-Interactors – and then all the others Resource-Interactorsare those Sites that interact with the hydrologic system and can be associated with Water Resources (aquifers, rivers, lakes, reservoirs). These are Withdrawal and Return Sites. All Other ‘Sites’ are part of the controls and infrastructure that manage the handling, treatment, transfer, distribution, collection, uses, consumption, and applications of water. Only ‘withdrawal‘ Resource-interactor Sites are shown in this diagram Slide courtesy of Todd Augenstein

14. Distribution Collection Slide courtesy of Marilee Horn