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

A View of Water-Use Data A View of Water-Use Data

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

Mark R. NardiMark R. Nardi

USGS Maryland, Delaware, D.C. Water Science CenterUSGS Maryland, Delaware, D.C. Water Science Center

Arc Hydro River Workgroup Austin Texas Arc Hydro River Workgroup Austin Texas

02 December 201002 December 2010

Via WebEXVia WebEXU.S. Department of the InteriorU.S. Geological Survey

Basic Water-Use Questions*Basic Water-Use Questions*

Where does our water come from?Where does our water come from? Where does it go?Where does it go? What is the water used for?What is the water used for? Who is using it?Who is using it? How much is used?How much is used?

How do these facts change over time?How do these facts change over time?

* Grammar check deliberately ignored...Slide courtesy of Steve Tessler

Discharge Pipe Main Sewer Line

Water Treatment Plant

Wellfield

Water Tower

Surface Water body

Intake

Dam

Distribution& Sewer System

Water Tower

Wells and water-treatment plants

Pumping Station

Major users

Main Supply Line

Interconnection

2ND Distributionand Sewer System

Wastewater Treatment Plant

Main Sewer Line

River

Pumping Station

Withdrawal

Return Flow

Withdrawal

Delivery

Release

Demand & Consumptive Use

Transfer

Transfer

Septic Return Flow

Demand & Consumptive Use

Major user

Schematic of human use of waterSlide courtesy of Marilee Horn

Tracking the Flow of WaterTracking the Flow of WaterSite to SiteSite to Site

Conveyance

Source Site Destination Site

A conveyance is a link between two sites.Conveyances are one way.

Slide courtesy of Todd Augenstein

Conveyance-Based Data Conveyance-Based Data ModelModel

How should we represent water-use data and activities?How should we represent water-use data and activities?

A Conveyance-based model can represent any water exchange activity A Conveyance-based model can represent any water exchange activity between two objects - and promotes network / pathway thinkingbetween two objects - and promotes network / pathway thinking

FromFrom A A ToTo B B

Pairs of Pairs of SitesSites are joined through unidirectional are joined through unidirectional ConveyancesConveyances for which for which water water Transfer QuantitiesTransfer Quantities are recorded are recorded

Site-Conveyance chainsSite-Conveyance chains represent the Site-to-Site-to-Site transfers as a represent the Site-to-Site-to-Site transfers as a networknetwork of interconnected sites of various types, tracking water from its of interconnected sites of various types, tracking water from its

source to its final point of consumption or returnsource to its final point of consumption or return

““Water-use” contains the infrastructure elements that interact directly with Water-use” contains the infrastructure elements that interact directly with the natural hydrologic system through withdrawals and returns, and also the natural hydrologic system through withdrawals and returns, and also includes the various treatment, distribution, user/application, collection, includes the various treatment, distribution, user/application, collection,

consumption, loss, and gain entities.consumption, loss, and gain entities.

Slide courtesy of Steve Tessler

NJWaTrNJWaTr Core Conveyance Model Core 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)

The logical basis for our water-use data schema canbe thought of as a “link-node” system. (Tessler and others)

Sources Distribution Demand ReturnCollection

S1 D1 M1 R1Qd Qd Qd

Qd

A C1Qd

S1D1

M1 R1

Qd

B

C1

S1

D2

M2 R2C2

S1 M3 R3C3

Conveyance Data Model used in SWUDSConveyance Data Model used in SWUDS

Well 1

Well 2

Well 3

Well 5

Well 4

Aquifer A

Aquifer B

Permit A

Permit B

conveyance

Public Water Supplier

DistributionSystem

Domestic use area A

Industrial user A

Sales to other Public Supplier

Municipal Wastewater

Permit

Consumptive Use

River intake

Municipal Wastewater

Collection System

Discharge Pipe

Permit C

Well A

Consumptive UsePermit D

Industrial Wastewater

Permit

Discharge Pipe

1

2

3

4

5

6

7

8

9

1 = Conveyance Number

10

11

12

14

13

15

16

17

1819

20 21

22

Septic Discharge (to groundwater)

23

Consumptive Use

Groundwater Return Flow

Well BPermit E

Irrigation user A

Slide courtesy of Marilee Horn

Treatment

Facility

Common Site TypesCommon Site Types

Outfall

StreamWell

Intake/Diversion



Simple Water NetworkSimple Water Network2 Sites, 1 Conveyance2 Sites, 1 Conveyance

Public Supply Well at a Water Treatment Plant

Conceptual representation of a 2-Site, 1-Conveyance water-use network

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.



Simple Water NetworkSimple Water Network4 Sites (3 Types), 4 Conveyances4 Sites (3 Types), 4 Conveyances

Conceptual representation of a network of 4-sites, two of which can exchange water in

either direction

Water networks can be extended by defining and adding

Sitesand their

unidirectional Conveyances



A More Complex Water NetworkA More Complex Water Network14 Sites 14 Sites (5 Types, 3 Spatial Scales)(5 Types, 3 Spatial Scales), 14 Conveyances , 14 Conveyances (4 Types)(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


** There are Two Main Classes of Sites **** There are Two Main Classes of Sites **Resource-Interactors – and then all the othersResource-Interactors – and then all the others

Resource-Interactors are 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 diagramSlide courtesy of Todd Augenstein

Distribution

Collection

Slide courtesy of Marilee Horn

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

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