Use of RiverWare for a Coordinated Groundwater-Surface Water Project - - PowerPoint PPT Presentation

▶
use of riverware for a coordinated groundwater surface
SMART_READER_LITE
LIVE PREVIEW

Use of RiverWare for a Coordinated Groundwater-Surface Water Project - - PowerPoint PPT Presentation

Oct 08, 2022 376 likes •611 views

Use of RiverWare for a Coordinated Groundwater-Surface Water Project DiNatale Water Consultants Kelly DiNatale, Arista Hickman and Srijita Jana Model Disclaimers Model is under development Final water court decrees will result in changes

slide-1
SLIDE 1

Use of RiverWare for a Coordinated Groundwater-Surface Water Project

DiNatale Water Consultants Kelly DiNatale, Arista Hickman and Srijita Jana

slide-2
SLIDE 2

DiNatale Water Consultants

  • Model is under development
  • Final water court decrees will result in changes

in inputs and operations

  • No findings have been reviewed or approved by

the clients

RiverWare User Group Meeting

Model Disclaimers

2

Slide

2/1/2012

slide-3
SLIDE 3

DiNatale Water Consultants

RiverWare User Group Meeting

General Project Location South Platte Basin Colorado

3

Slide

2/6/2012

slide-4
SLIDE 4

DiNatale Water Consultants

RiverWare User Group Meeting

South Platte Basin Colorado

4

Slide

2/6/2012

slide-5
SLIDE 5

DiNatale Water Consultants

RiverWare User Group Meeting

System Geography

5

Slide

2/6/2012

slide-6
SLIDE 6

DiNatale Water Consultants

RiverWare User Group Meeting

Project Background

6

Slide

2/6/2012

  • Storage reservoirs difficult to

permit

  • Scarcity of high quality supplies
  • Last in-basin storage projects with

high quality supplies under development

  • Need for reliable yield
  • Available senior water rights in agricultural use
  • Colorado Water Conservation Board studies project continued

transfer of agricultural rights to M&I use

  • Proposed project involves minimal surface storage, lower quality

supplies, groundwater recharge and advanced water treatment

slide-7
SLIDE 7

DiNatale Water Consultants

RiverWare User Group Meeting

Project Components

7

Slide

2/6/2012

  • Three water user accounts
  • Senior agricultural surface water rights
  • Shares in 20 irrigation companies
  • Direct flow, storage and recharge rights
  • Net stream depletions
  • Surface reservoirs
  • 3 alluvial well fields with

lagged depletions

  • Recharge ponds with

lagged accretions

  • Exchanges in 8 river

accounting reaches

slide-8
SLIDE 8

DiNatale Water Consultants

RiverWare User Group Meeting

Modeling Goals

8

Slide

2/6/2012

  • Model potential operations of decreed augmentation plans,

change cases and exchanges

  • Develop annual operating plan
  • Simulate over historical period of record
  • Ability to incorporate terms of future water rights decrees
  • Flow rate and volumetric limitations
  • Net stream depletion calculations for transferred water rights
  • Lagged depletions from groundwater pumping
  • Lagged recharge accretions
  • Size and develop infrastructure to reliably meet demands
  • Does not duplicate water court decreed accounting
slide-9
SLIDE 9

DiNatale Water Consultants

RiverWare User Group Meeting

Model Objectives

9

Slide

2/6/2012

  • Replace (augment):
  • Lagged alluvial well pumping depletions (20+ wells)
  • Historical return flow obligations from transferred water

rights

  • Replacement sources:
  • Lagged accretions from groundwater recharge
  • Direct flow and storage releases and exchanges of transferred

consumptive use

slide-10
SLIDE 10

DiNatale Water Consultants

RiverWare User Group Meeting

Project Features

10

Slide

2/6/2012

River Diversion Lagged Accretions Pipeline to Water Treatment & Terminal Storage Alluvial Wellfield

Farm Lagged Pumping Depletions Recharge Pond

Transferred CU

slide-11
SLIDE 11

DiNatale Water Consultants

RiverWare User Group Meeting

Example Monthly Net Stream Depletion

11

Slide

2/6/2012

  • 20

20 40 60 80 100

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Acre-Feet

Monthly Average Net Stream Depletion

slide-12
SLIDE 12

DiNatale Water Consultants

RiverWare User Group Meeting

Recharge Ponds

12

Slide

2/6/2012

Options:

  • Upper recharge ponds to

meet physical supply

  • Lower recharge ponds for

augmentation Modeled:

  • Water sent to upper recharge ponds when pumping exceeds

groundwater replacement rates

  • Distribution based on volume and timing (URFs)
  • Excess water in storage reservoir sent to lower ponds
  • Distribution based on volume and timing (URFs)
  • Lagged accretions from all ponds used as augmentation sources
  • Individual pond accretions may accrue to up to 3 basins
slide-13
SLIDE 13

DiNatale Water Consultants

RiverWare User Group Meeting

Lower Recharge Ponds Unit Response Functions

13

Slide

2/6/2012

0% 5% 10% 15% 20% 25% 30% 1 2 3 4 5 6 7 8 9 10 11 12

Monthly percent returned

Month

slide-14
SLIDE 14

DiNatale Water Consultants

RiverWare User Group Meeting

Recharge Pond

14

Slide

2/6/2012

Recharge Ponds modeled as reservoirs Infiltration rates vary by pond, by month Infiltration calculated using seepage slot Seepage*URF= accretion credit Evaporation accounting per decrees Area-elevation-volume tables required modification based on flat bottoms

slide-15
SLIDE 15

DiNatale Water Consultants

RiverWare User Group Meeting

Recharge Pond 1 Inflow and Accretions

15

Slide

2/6/2012

20 40 60 80 100 120 140 Flow (acre-feet/month)

Inflow Accretions

slide-16
SLIDE 16

DiNatale Water Consultants

RiverWare User Group Meeting

Recharge Pond 2 Inflow and Accretions

16

Slide

2/6/2012

50 100 150 200 250 300 350 Flow (acre-feet/month) Inflow Accretion

slide-17
SLIDE 17

DiNatale Water Consultants

RiverWare User Group Meeting

Recharge Pond 2 Inflow and Accretions

17

Slide

2/6/2012

50 100 150 200 250 Accretion Flow (acre-feet/month)

Pond 1 Pond 2

slide-18
SLIDE 18

DiNatale Water Consultants

RiverWare User Group Meeting

Exchanges

18

Slide

2/6/2012

  • Designated accounting reaches of the South Platte River
  • Decreed exchanges rules
  • Priority
  • Live flow in all reaches
  • Flow rate and volumetric limits
  • Infrastructure capacities
  • Diversion
  • Storage
  • Recharge
slide-19
SLIDE 19

DiNatale Water Consultants

  • Exchange potential

computed externally

  • South Platte River and

tributaries are not explicitly modeled

  • Input as data tables to

provide exchange potential and reach-by- reach credit and

  • bligation information

RiverWare User Group Meeting

RiverWare Model Features

19

Slide

2/6/2012

  • Groundwater depletions and accretions derived from

MODFLOW and input at URFs

  • Recharge Ponds modeled as reservoirs
  • Canals modeled as river reaches
slide-20
SLIDE 20

DiNatale Water Consultants

Modeling the Operations of a Conjunctive Use Project

Next Steps

20

Slide

2/6/2012

  • Incorporate exchanges and decreed accounting reaches
  • Multiple infrastructure and operations scenarios
  • Timing and location of recharge
  • Meet return flow obligations from various sources
  • Augment pumping depletions
  • Firming water rights via surface water storage or lagged

groundwater accretions

  • Minimize surface storage
  • Develop operational scenarios to minimize permanent dry-up of

historically irrigated lands

  • Use of surplus supplies or new junior recharge rights
  • Regulate supplies via groundwater recharge
  • Provide for interruptible supplies for irrigation
slide-21
SLIDE 21

DiNatale Water Consultants

Modeling the Operations of a Conjunctive Use Project

Use of RiverWare for a Coordinated Groundwater-Surface Water Project

21

Slide

2/6/2012