Soil-Plant Water Balance and Groundwater - Taboose-Aberdeen, Thibaut-Sawmill, Independence-Oak, Symmes-Shepherd, Bairs-Georges

On-off pumping management according to Green Book Section III values for Vegetation Water Requirements 1989-2023.

Modified

May 24, 2024

On/Off Well Management

The Water Agreement and Green Book established protocols for determining the operational status of LADWP pumping wells, based on soil moisture and vegetation measurements. To fulfill monitoring requirements under the Agreement, the Water Department regularly assesses soil moisture content and vegetation leaf area index (in collaboration with LADWP) at 22 permanent sites within wellfields and seven sites in control areas. Soil moisture monitoring occurs monthly, while vegetation monitoring takes place annually in June. Each monitoring site is associated with one or more LADWP pumping wells.

On July 1st and October 1st, if soil moisture levels are inadequate to support vegetation needs at a site, the linked pumping wells go into off status. They remain offline until soil moisture levels surpass the threshold required by the vegetation at the time the linked wells went into off status. This operational approach is known as the On/Off management strategy.

Since its inception in 1990, LADWP has frequently maintained numerous wells in the Off status, adhering to subsequent agreements with the County.

Soil-Plant Water Balance and Groundwater

Data for each of the permanent monitoring sites (1990-present) is presented in four plots. The first plot includes pumped water from linked production wells. The second includes available water content (AWC) and vegetation water requirements (VWR) over time. The third plot includes the depth to water table (DTW) from the monitoring well on the site. The last plot represents time periods when the site was either in on or off status over the management period.

The right margin contains a photo of the site, production wells linked to the site, current on/off status, AWC required for well turn-on, and the identity of the associated monitoring well.

Instructions

  • Zoom out: Double click on a plot to zoom out to the full time series extent.
  • Data point highlighting: Move cursor over the plot to display data values in the legend.
  • Pan: Use slider range selector to display custom time periods.
  • Zoom in: Drag horizontally to select time period or drag vertically to select a custom y-axis range.
  • Grouped Selection: Selection in any plot will update all plots with this selection.

TABOOSE/ABERDEEN MONITORING SITE #3

Total Annual Pumping (AF)
W106
W110
W111
W114
0
2000
4000
6000
8000
10000
2000
2010
2020
(cm)
awc
vwr
0
10
20
30
40
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

TABOOSE/ABERDEEN MONITORING SITE #4

Total Annual Pumping (AF)
W342
W347
0
5000
10000
15000
20000
2000
2010
2020
(cm)
awc
vwr
0
10
20
30
40
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

TABOOSE/ABERDEEN MONITORING SITE #5

W349
Total Annual Pumping (AF)
0
2000
4000
6000
8000
10000
2000
2010
2020
(cm)
awc
vwr
0
10
20
30
40
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

TABOOSE/ABERDEEN MONITORING SITE #6

Total Annual Pumping (AF)
W109
W370
0
500
1000
1500
2000
2500
3000
2000
2010
2020
(cm)
awc
vwr
0
10
20
30
40
50
60
70
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

THIBAUT/SAWMILL MONITORING SITE #1

W159
Total Annual Pumping (AF)
0
5
10
15
2000
2010
2020
(cm)
awc
vwr
0
10
20
30
40
50
60
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

THIBAUT/SAWMILL MONITORING SITE #2

W155
Total Annual Pumping (AF)
0
100
200
300
400
2000
2010
2020
(cm)
awc
vwr
0
10
20
30
40
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

THIBAUT/SAWMILL MONITORING SITE #3

Total Annual Pumping (AF)
W103
W104
W382
0
500
1000
1500
2000
2500
3000
2000
2010
2020
(cm)
awc
vwr
0
10
20
30
40
50
60
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

THIBAUT/SAWMILL MONITORING SITE #4

Total Annual Pumping (AF)
W380
W381
0
1000
2000
3000
4000
2000
2010
2020
(cm)
awc
vwr
0
20
40
60
80
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

THIBAUT/SAWMILL CONTROL SITE

(cm)
awc
vwr
0
10
20
30
40
50
60
70
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020

INDEPENDENCE/OAK MONITORING SITE #1

Total Annual Pumping (AF)
W061
W391
W400
0
500
1000
1500
2000
2000
2010
2020
(cm)
awc
vwr
0
20
40
60
80
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

INDEPENDENCE/OAK MONITORING SITE #2

W063
Total Annual Pumping (AF)
0
500
1000
1500
2000
2010
2020
(cm)
awc
vwr
0
5
10
15
20
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

INDEPENDENCE/OAK CONTROL SITE #1

(cm)
awc
vwr
10
20
30
40
50
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020

INDEPENDENCE/OAK CONTROL SITE #2

(cm)
awc
vwr
0
10
20
30
40
50
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020

SYMMES/SHEPHERD MONITORING SITE #1

Total Annual Pumping (AF)
W069
W392
W393
0
1000
2000
3000
4000
5000
6000
2000
2010
2020
(cm)
awc
vwr
0
10
20
30
40
50
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

SYMMES/SHEPHERD MONITORING SITE #2

Total Annual Pumping (AF)
W074
W394
W395
0
500
1000
1500
2000
2010
2020
(cm)
awc
vwr
0
5
10
15
20
25
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

SYMMES/SHEPHERD MONITORING SITE #3

Total Annual Pumping (AF)
W092
W396
0
1000
2000
3000
4000
5000
6000
2000
2010
2020
(cm)
awc
vwr
0
10
20
30
40
50
60
70
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

SYMMES/SHEPHERD MONITORING SITE #4

Total Annual Pumping (AF)
W075
W345
0
1000
2000
3000
4000
5000
2000
2010
2020
(cm)
awc
vwr
0
5
10
15
20
25
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

BAIRS GEORGES MONITORING SITE #2

Total Annual Pumping (AF)
W076
W403
W343
W348
0
500
1000
1500
2000
2500
2000
2010
2020
(cm)
awc
vwr
0
10
20
30
40
50
60
70
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020
open bar denotes on-status
2000
2010
2020

BAIRS/GEORGES CONTROL SITE

(cm)
awc
vwr
0
10
20
30
40
50
60
2000
2010
2020
Depth (m)
date
dtw
10
8
6
4
2
2000
2010
2020

Citation

BibTeX citation:
@report{2024,
  author = {},
  publisher = {Inyo County Water Department},
  title = {Soil-Plant {Water} {Balance} and {Groundwater} -
    {Taboose-Aberdeen,} {Thibaut-Sawmill,} {Independence-Oak,}
    {Symmes-Shepherd,} {Bairs-Georges}},
  date = {2024-05-24},
  url = {https://github.com/inyo-gov/pumping-management},
  langid = {en}
}
For attribution, please cite this work as:
“Soil-Plant Water Balance and Groundwater - Taboose-Aberdeen, Thibaut-Sawmill, Independence-Oak, Symmes-Shepherd, Bairs-Georges.” 2024. Green Book Section III On/Off Pumping Management. Inyo County Water Department. https://github.com/inyo-gov/pumping-management.