The Cross Section, Volume 33, Number 4, April 1987 Page: 1
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____AGRICULTURAL
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INDUS TRIALPublished monthly by High Plains Underground Water Conservation District No. 1, 2930 Avenue Q, Lt
Volume 33-No. 4 Publication Number USPS 564-920, Second Class Postage paid at L
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.ubbock, Texas April, 1987
District Marks Another First
Staff Documents First Ever Net Rise Ir
a Water Levels
The High Plains Water District has recorded
another first in its 36-year history by docu-
menting an average net rise in the water levels
in observation wells penetrating the Ogallala
Formation throughout the District's 5.2 million
acre service area. The net rise of more than
one-half foot indicates a reverse in the trend
of water-level changes from a decline in water
levels to stabilization of the aquifer.
"The most important thing about a zero net
change, such as that recorded last year, or a
net rise, such as what we have this year, in
the measured water levels is that the amount
of water in the aquifer is not changing signif-
icantly. The aquifer is stabilizing," states Don
McReynolds, Director of the Geohydrologic
Division at the Water District. "If we're not
using the water now, it means more water will
be available for future use."
Although the District-wide average shows
a net rise, the actual measured depth to water
and the resultant averages vary from county
to county.
Trends Vary From County to County
Twelve of the 15 counties served by the
Water District show an average annual rise in
water levels from January 1986 to January
1987. Rises range from a slight rise of 0.03 of
a foot in Lamb County to an impressive rise
of 3.27 feet in that portion of Lynn County lying
within the District's service area.Of the 15 counties within the District, four
show average annual water-level rises for the
10-year period 1977 to 1987, and six show
average annual rises for the five-year period
1982 to 1987.
Only three counties in the District's service
area, Castro, Deaf Smith and Parmer counties,
show an average net decline in water levels
from 1986 to 1987. The declines are all less
than one-half foot, ranging from 0.16 of a foot
in Castro County to 0.38 of a foot in Parmer
County. However, even these small declines
hold good news in that generally the rate of
decline is reduced from previous years.
District-Wide Declines Significantly Reduced
The average change in water levels in the
Ogallala aquifer throughout the District's ser-
vice area for the five-year period 1982 to 1987
shows a total decline of one foot. This equals
an average annual decline of 0.20 of a foot.
The 10-year average change in water levels
from 1977 to 1987 for all the wells measured
shows a total water-level decline of 7.40 feet,
which equals an average annual decline of 0.74
of a foot.
Recharge and Ag Economy Among
Contributing Factors
McReynolds attributes the rise in measured
water levels to a number of factors including
the large amounts of precipitation which fellover parts of the Water District's service area
in late fall of 1986 and to the agricultural
economy including high fuel costs, which
contributed to reduced pumpage.
In addition, more efficient irrigation
management and equipment such as center
pivot sprinkler systems, furrow dikes and
surge valves have also helped reduce the
amount of water pumped from the aquifer."As long as the agricultural economy
remains in its present condition, it is likely that
this trend of decreasing declines will
continue," predicts McReynolds.
Water Levels Measured Annually
Staff at the Water District annually measure
and record the depth to water in the Ogallala
continued on page 8 ... NET RISEAverage Changes In Depths to Water In Observation Wells - 1987
Number of
Observation
Wells MaintainedArmstrong
Bailey
Castro
Cochran
Crosby
Deaf Smith
Floyd
Hale
Hockey
Lamb
Lubbock
Lynn
Parmer
Potter
Randall9
74
89
52
23
83
98
27
88
99
116
40
97
6
50Average Annual Average Annual
Change-1977 Change-1982
to 1987 to 1987-0.41
-0.87
--1.84
+0.25
-0.53
-1.10
-1.06
-0.53
+ 0.17
-1.82
+ 0.06
+0.62
-2.00
-0.78
-0.17-0.11
-0.42
-1.23
+0.52
+1.03
-0.76
-0.53
+0.12
+ 0.59
-1.06
+ 0.87
+1.73
-1.29
-0.36
-0.20AverageAnnual
Change-1986
to 1987
+1.09
+ 0.14
-0.16
+0.96
+1.50
-0.22
+ 0.19
+ 2.18
+ 1.16
+0.03
+ 1.28
+ 3.27
-0.38
+ 0.36
+ 0.29-- - 7 4jq7
-7 ..- -.. -
D SR CT BOUNDARY ..
LYNN COUNTY
Depth to Water Below Land Total Change
Surface Lu Feet In Water Levels Lu FeetLYNN COUNTY
Depth to Water Below Land Total Change
Surface In Feet In Water Levels In Feet1977 1982 1986 1987 1977 1982
to to
1987 1987N
1977 1982 1986 1987 1977
to
1987
0.0 76.33 66.75 60.87 0.0
126.97 126.09 119.70 117.59 + 9.38
124.39 124.44 121.17 120.46 + 3.93
0.0 120.89 117.65 117.04 0.0
109.49 110.45 106.32 105.33 + 4.16
113.61 114.91 107.43 107.05 + 6.56
100.08 102.45 96.38 90.63 + 9.45
40.46 44.23 41.20 35.01 + 5.45
87.52 89.67 88.29 86.02 + 1.50
99.01 97.65 85.96 83.38 + 15.63
63.77 68.95 60.14 58.12 + 5.65
28.19 33.25 26.08 11.78 + 16.41
71.71 72.38 68.04 66.60 + 5.11
77.47 79.22 75.68 73.97 + 3.50
84.87 85.86 82.57 81.25 + 3.62
75.27 75.80 70.94 69.64 + 5.63
0.0 41.60 36.70 29.03 0.0
57.03 56.90 51.67 48.15 + 8.88
61.08 65.75 55.18 43.45 + 17.63
0.0 0.0 135.59 129.37 0.0
40.94 41.88 39.17 34.35 + 6.59
25.14 26.81 23.90 19.71 + 5.43
0.0 101.32 96.51 93.58 0.0
0.0 94.96 86.54 84.23 0.0
108.39 111.00 100.52 92.79 + 15.60
86.79 89.52 82.38 78.29 + 8.50
0.0 0.0 115.22 113.06 0.0NOTE: 0.0 Denotes data not available
Well
Number
23-34-901
23-34-903
23-35-704
23-35-801
23-35-901
23-41-201
23-41-202
23-41-301
23-41-302
23-41-401
23-41-402
23-41-501
23-41-601well
Number
23-41-801
23-41-901
23-42-202
23-42-204
23-42-301
23-42-401
23-42-501
23-42-601
23-42-602
23-42-701
23-42-801
23-43-301
23-43-501
23-43-502
23-43-503
23-43-504
23-43-601
23-43-901
23-44-101
23-44-204
23-44-401
23-44-702
24-48-201
24-48-203
24-48-302
24-48-601
24-48-901143.28
151.47
132.21
87.72
90.02
103.62
0.0
0.0
0.0
90.44
0.0
69.31
0.0147.72
156.82
138.13
87.78
91.98
108.35
0.0
135.90
0.0
95.55
107.67
74.45
105.96141.89
153.34
135.65
87.50
91.06
101.80
112.50
131.80
109.32
90.10
99.62
65.56
103.02140.88
151.85
133.43
87.09
90.67
98.02
108.96
130.84
108.38
87.93
96.50
62.59
102.34+ 2.40
- 0.38
- 1.22
+ 0.63
- 0.65
+ 5.60
0.0
0.0
0.0
+ 2.51
0.0
+ 6.72
0.01986
to
1987
+ 1.01
+ 1.49
+ 2.22
+ 0.41
+ 0.39
+ 3.78
+ 3.54
+ 0.96
+ 0.94
+ 2.17
+ 3.12
+ 2.97
+ 0.681982
to
1987
+ 15.46
+ 8.50
+ 3.98
+ 3.85
+ 5.12
+ 7.86
+ 11.82
+ 9.22
+ 3.65
+ 14.27
+ 10.83
+ 21.47
+ 5.78
+ 5.25
+ 4.61
+ 6.16
+ 12.57
+ 8.75
+ 22.30
0.0
+ 7.53
+ 7.10
+ 7.74
+ 10.73
+ 18.21
+ 11.23
0.0+ 6.84
+ 4.97
+ 4.70
+ 0.69
+ 1.31
+ 10.33
0.0
+ 5.06
0.0
+ 7.62
+ 11.17
+ 11.86
+ 3.621986
to
1987
+ 5.88
+ 2.11
+ 0.71
+ 0.61
+ 0.99
+ 0.38
+ 5.75
+ 6.19
+ 2.27
+ 2.58
+ 2.02
+ 14.30
+ 1.44
+ 1.71
+ 1.32
+ 1.30
+ 7.67
+ 3.52
+ 11.73
+ 6.22
+ 4.82
+ 4.19
+ 2.93
+ 2.31
+ 7.73
+ 4.09
+ 2.16
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High Plains Underground Water Conservation District No. 1 (Tex.). The Cross Section, Volume 33, Number 4, April 1987, periodical, April 1987; Lubbock, Texas. (https://texashistory.unt.edu/ark:/67531/metapth1533145/m1/1/?q=%22~1%22~1: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.