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
Slide courtesy of Todd Augenstein
Conveyance-Based Data Conveyance-Based Data ModelModel
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.
Slide courtesy of Todd Augenstein
Conveyance-Based Data Conveyance-Based Data ModelModel
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
Slide courtesy of Todd Augenstein
Conveyance-Based Data Conveyance-Based Data ModelModel
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
Conveyance-Based Data Conveyance-Based Data ModelModel
** 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
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