Table A1. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Holly, Prowers County, Colorado. The sample site is located at the bridge south of Holly (23S-42W-14CCCB).
 
Sample

date

m/d/yr

Sample

time 

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

4/17/97
970154
UARK-156
4230
2175
142
2.6
3576
5/22/97
15:00
970185
UARK-163
3680
2740
1265
95.8
1.4
2175
6/19/97
970211
UARK-174
3960
4270
7.95
20.8
359
182
514
10.3
6.39
364
2160
141
1.09
2.5
0.815
3585
3614
8/20/97
1505
970391
UARK-210
3650
4036
8.20
21.4
346
170
474
9.3
6.48
376
2039
130
1.07
2.2
0.811
3392
3389
9/18/97
15:20
970400
UARK-219
4050
4010
2039
130
2.0
3364
11/21/97
13:48
970518
UARK-228
4300
4330
2163
139
2.0
3673
12/18/97
13:00
980006
UARK-231
2330
2520
1180
75.3
1.1
1975
2/6/98
11:00
980017
UARK-236
3250
3180
1520
94.6
2.2
2581
2/18/98
13:45
980025
UARK-244
3300
3640
8.05
17.3
306
157
416
<1.6
5.91
324
1809
115
2.0
0.582
2996
3012
4/30/98
13:10
980143
UARK-255
2490
8.00
10.0
204
103
247
7.0
3.66
229
1153
71.1
1.1
0.382
1917
1948
5/21/98
980169
UARK-271
3840
1971
125
3202
6/18/98
15:40
980173
UARK-274
2510
2850
1426
86.2
2276
7/23/98
14:55
980195
UARK-280
2610
2600
1243
78.0
2048
8/27/98
14:27
980243
UARK-307
3850
3800
1970
124
3163
9/24/98
13:10
980369
UARK-316
3880
3980
2023
127
3335
10/15/98
13:42
980372
UARK-319
3890
3880
2016
123
3240
11/19/98
10:21
990000
UARK-329
4050
4180
2230
129
3527
12/17/98
13:00
990003
UARK-332
4060
4200
2227
129
3547
1/21/99
12:11
990016
UARK-337
4150
4273
2257
133
3617
2/18/99
13:45
990032
UARK-340
4240
4440
2413
142
3779
3/16/99
10:50
990038
UARK-346
4190
4374
2294
135
3715
4/22/99
12:30
990083
UARK-359
3520
3600
1917
112
2974
5/20/99
14:30
990108
UARK-371
2210
2230
1075
60.8
1714
6/15/99
7:00
990152
UARK-375
2210
2200
1017
58.8
1687
7/13/99
11:15
990203
UARK-380
2580
2600
1211
72.4
2048
8/17/99
11:30
990281
UARK-386
1950
1950
877
51.1
1465
9/13/99
14:30
990306
UARK-393
3610
3610
1826
109
2983
10/22/99
10:35
990328
UARK-399
3890
4003
2038
125
3357
11/16/99
9:30
990334
UARK-405
3860
4000
2137
129
3354
12/16/99
13:00
000005
UARK-415
4060
4220
2208
133
3566
1/13/00
10:15
000009
UARK-419
4080
4260
2203
132
3605
2/17/00
12:20
000062
UARK-424
3840
4220
2048
122
3566

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A2. Kansas Geological Survey analyses of water samples collected from Cheyenne Creek, Prowers County, Colorado. The sample site is located about 0.2 mile west of the Colorado-Kansas state line and 0.3 mile north of the Arkansas River (23S-43W-20ADC).
 
Sample

date

m/d/yr

Sample

time 

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

5/22/97
15:20
970186
UARK-164
3810
4145
2214
129
3.8
3494
6/19/97
970212
UARK-175
2600
2790
8.05
14.2
243
116
294
5.7
4.65
233
1345
82.4
1.16
1.8
0.501
2229
2221
7/17/97
970297
UARK-202
2530
2740
1337
84.1
1.4
2175
8/20/97
1525
970392
UARK-211
3700
3880
8.05
22.1
317
167
458
7.3
7.04
267
2024
120
1.21
2.9
0.925
3269
3240
9/18/97
15:03
970401
UARK-220
4010
3950
2039
123
3.1
3306
10/16/97
14:40
970423
UARK-223
2370
2570
1207
72.3
1.6
2020
11/21/97
13:20
970519
UARK-229
4650
4674
2428
149
4.7
4008
2/6/98
10:45
980018
UARK-237
4750
4678
2463
149
4.8
4012
2/18/98
14:15
980026
UARK-245
4100
4676
8.10
26.8
403
195
571
10.0
7.69
280
2459
149
4.6
1.18
3982
4010
4/30/98
13:40
980144
UARK-256
2630
8.05
13.0
222
108
267
7.1
4.10
237
1230
75.8
1.7
0.430
2053
2075
5/21/98
980170
UARK-272
3340
1678
108
2730
6/18/98
16:20
980174
UARK-275
2250
2570
1224
75.9
1.7
2020
7/23/98
15:26
980196
UARK-281
2600
2740
1331
81.4
2175
8/27/98
15:00
980244
UARK-308
3280
1663
102
2674
9/24/98
13:45
980370
UARK-317
2520
1020
474
13.2
0.3
656
10/15/98
14:15
980373
UARK-320
2580
2570
1239
72.6
2.1
2020
11/19/98
10:50
990001
UARK-330
4620
4260
2304
123
3605
1/21/99
12:38
990017
UARK-338
4400
4556
2526
137
3893
2/18/99
14:15
990033
UARK-341
4510
4672
2711
142
4.3
4006
4/22/99
13:10
990084
UARK-360
2580
2630
1337
71.2
1.4
2075
7/13/99
11:30
990204
UARK-381
2590
2590
1253
69.2
2.0
2039
8/17/99
11:45
990282
UARK-387
2490
2480
1183
65.9
1.6
1939
9/13/99
14:45
990307
UARK-394
2410
2400
1149
63.8
1.3
1867
10/22/99
10:45
990329
UARK-400
3480
3590
1828
99.6
3.3
2964
11/16/99
9:45
990335
UARK-406
2560
2600
1309
65.7
2.1
2048
1/13/00
10:30
000010
UARK-420
4180
4440
2380
134
3779

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A3. Kansas Geological Survey analyses of water samples collected from the Arkansas River near Coolidge, Hamilton County, Kansas. The sample site is located at the bridge south of Coolidge where there is a USGS gaging station (23S-43W-26BAB).
 
Sample

date

m/d/yr

Sample

time 

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

6/20/93
930545
3490
287
143
403
1692
114
1.6
2870
1/5/94
940002
4510
8.05
377
199
562
10.5
7.15
351
2333
155
2.6
0.860
3844
3848
4/7/94
940194
4020
344
174
478
10.1
6.07
2039
134
2.5
0.708
3374
8/15/94
940426
2280
190
86.5
239
9.1
3.15
1007
67.1
1.0
0.361
1759
7/25/95
10:25
950161
UARK-005
1675
8.00
11.0
149
64.4
150
6.5
2.38
214
708
43.1
0.90
0.3
0.258
1243
1222
8/8/95
18:50
950223
UARK-049
3060
8.15
17.5
265
125
332
9.7
4.46
310
1442
93.8
1.05
1.6
0.489
2451
2469
8/28/95
12:55
950282
UARK-076
2350
8.20
14.0
201
92.7
238
8.4
3.35
255
1051
66.2
0.97
1.1
0.417
1807
1822
3/1/96
10:00
960005
UARK-090
4560
8.05
20.2
374
193
556
10.5
7.27
377
2339
152
1.11
3.1
0.825
3853
3897
4/3/97
970149
UARK-151
2940
1450
90.2
1.4
2359
4/17/97
970156
UARK-158
4122
8.15
17.2
344
171
485
9.0
6.32
361
2121
138
1.09
2.6
0.665
3483
3472
5/22/97
14:30
970184
UARK-162
3720
3680
1840
119
1.8
3050
6/19/97
970213
UARK-176
3630
3920
8.05
18.0
333
165
466
8.2
5.94
332
1991
130
1.10
2.6
0.666
3294
3278
7/17/97
970298
UARK-203
2350
2530
1202
76.1
1.2
1984
8/20/97
14:30
970393
UARK-212
3600
3900
8.15
20.5
332
165
458
10.0
6.26
354
1997
127
1.08
2.2
0.804
3302
3259
9/18/97
14:39
970402
UARK-221
4000
3940
8.15
20.3
337
169
467
10.0
6.17
345
1998
128
1.10
2.2
0.712
3317
3297
10/16/97
14:00
970424
UARK-224
3195
3500
8.05
19.7
300
149
399
8.9
5.76
310
1735
108
1.14
1.9
0.715
2888
2880
11/21/97
12:50
970520
UARK-230
4300
4247
2141
133
2.9
3592
12/18/97
12:25
980007
UARK-232
2250
2460
7.95
13.6
209
103
253
2.9
3.94
241
1155
73.6
1.1
0.462
1939
1921
2/6/98
10:15
980019
UARK-238
3350
3120
1506
92.1
2.2
2525
2/18/98
14:45
980027
UARK-246
3210
3510
8.10
14.1
293
150
394
5.4
5.73
315
1724
110
2.1
0.449
2862
2889
4/30/98
14:00
980145
UARK-257
2415
8.05
9.4
204
101
239
6.3
3.62
226
1108
70.2
1.0
0.314
1859
1880
5/21/98
980171
UARK-273
3700
1843
123
3068
6/18/98
16:45
980175
UARK-276
2440
2730
7.95
12.3
235
117
290
7.6
4.23
253
1321
80.5
1.4
0.474
2200
2166
7/23/98
15:50
980197
UARK-282
2530
2480
8.10
12.5
212
107
256
7.1
3.79
237
1155
72.7
1.2
0.432
1950
1939
8/27/98
15:30
980245
UARK-309
3600
1779
115
2.1
2974
9/24/98
14:35
980371
UARK-318
3560
3310
7.80
17.4
262
140
377
11.1
5.02
268
1618
105
1.9
0.631
2678
2702
10/15/98
14:45
980374
UARK-321
3590
2990
7.75
15.8
219
126
347
9.9
4.43
230
1401
96.1
1.6
0.598
2341
2405
1/21/99
13:00
990018
UARK-339
4610
4224
7.8
363
187
506
10.8
7.20
342
2249
132
2.9
0.796
3655
3570
2/18/99
14:35
990034
UARK-342
4170
4124
7.90
17.7
341
179
489
10.1
7.09
325
2209
129
2.4
0.763
3554
3473
3/16/99
11:45
990039
UARK-347
4100
4233
8.00
18.4
355
186
502
10.9
7.33
345
2218
131
2.4
0.774
3611
3579
4/27/99
10:30
990085
UARK-361
3420
3580
8.00
16.0
306
156
417
9.5
5.75
308
1859
110
1.9
0.571
3041
2955
5/20/99
15:30
990109
UARK-372
2250
2260
7.90
8.9
197
95.6
221
6.5
3.53
206
1071
62.1
0.8
0.420
1772
1741
6/15/99
10:00
990153
UARK-376
2210
2260
7.80
11.6
195
92.8
222
7.4
3.39
219
1030
61.1
1.0
0.368
1737
1741
7/13/99
13:50
990205
UARK-382
2620
2620
8.00
14.6
224
108
269
9.0
4.04
254
1216
73.0
1.6
0.506
2052
2066

Table A3. KGS analyses of water samples collected from the Arkansas River near Coolidge, Kansas (continued).
 
Sample

date

m/d/yr

Sample

time 

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

8/12/99
16:20
990280
UARK-385
2040
2050
958
53.9
0.7
1553
8/17/99
14:00
990283
UARK-388
1960
2000
8.00
12.8
170
80.6
189
7.8
2.98
200
905
52.4
0.5
0.344
1523
1509
9/13/99
15:00
990308
UARK-395
3360
3390
8.05
23.4
301
143
391
15.4
5.52
308
1668
100
1.8
0.881
2809
2776
10/22/99
11:00
990330
UARK-401
3740
3870
7.95
21.9
331
165
445
11.3
6.34
324
1960
120
2.2
0.751
3232
3230
11/16/99
10:00
990336
UARK-407
3530
3590
8.05
17.8
309
152
410
10.3
5.94
313
1859
108
2.1
0.661
3037
2964
1/13/00
10:35
000011
UARK-421
4020
4190
7.90
25.1
350
179
485
10.5
7.13
354
2119
129
3.0
0.945
3494
3537
2/17/00
12:58
000063
UARK-425
3810
3940
7.95
23.3
336
174
465
10.1
6.78
342
1972
120
2.6
0.881
3289
3297
3/13/00
10:30
000067
UARK-429
2890
2920
8.00
17.4
254
126
317
9.4
4.84
275
1437
87.8
1.5
0.574
2398
2340
3/23/00
11:30
000068
UARK-430
3220
3200
1600
96.4
2599
3/29/00
12:30
000069
UARK-431
3730
3830
1969
122
3192
4/4/00
13:30
000070
UARK-432
3470
3500
8.05
20.0
306
153
407
10.3
5.80
314
1763
107
2.2
0.769
2938
2880
4/13/00
12:30
000073
UARK-435
3770
3800
1880
121
3163

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 
 
 

Table A4. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Syracuse, Kansas. The sample site is located at the bridge south of Syracuse at the same location as the USGS gaging station (24S-40W-18BDB).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

6/21/93
930546
2830
236
115
311
1371
88.9
1.4
2258
1/5/94
940003
4510
8.05
365
196
555
10.4
6.95
325
2349
157
2.6
0.814
3827
3848
4/7/94
940195
4020
339
175
482
10.3
5.97
2067
135
2.7
0.780
3374
8/15/94
940427
1860
152
67.2
187
9.0
2.45
789
52.3
0.8
0.326
1385
7/25/95
10:50
950162
UARK-006
1750
7.95
11.9
157
67.9
163
7.2
2.50
219
745
46.0
0.88
0.4
0.241
1312
1288
8/8/95
18:00
950222
UARK-048
3000
8.15
17.6
259
121
326
9.4
4.37
306
1422
92.5
1.04
1.5
0.497
2411
2414

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A5. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Kendall, Hamilton County, Kansas. The sample site is located at the bridge south of Kendall (24S-39W-25DCC).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

6/21/93
930549
2710
224
109
295
1298
84.2
1.5
2148
1/5/94
940004
4460
8.15
357
193
551
10.7
6.76
312
2329
157
2.6
0.793
3785
3799
4/7/94
940196
4320
355
187
536
10.6
6.19
2229
153
2.8
0.903
3663
8/15/94
940428
1440
117
49.1
130
7.9
1.88
574
37.6
0.7
0.265
1018
7/25/95
11:15
950163
UARK-007
1750
8.00
11.7
154
67.0
160
7.2
2.47
216
741
46.0
0.90
0.3
0.239
1299
1288

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A6. Kansas Geological Survey analyses of water samples collected from the Arkansas River at the Amazon Ditch headgates, Kearny County, Kansas. The sample site is located at 25S-38W-12BBB.
 
Sample

date

m/d/yr

Sample

time 

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

8/8/95
17:00
950221
UARK-047
2880
8.10
18.3
254
118
310
9.2
4.23
306
1344
87.0
1.05
1.3
0.463
2303
2303
8/28/95
13:55
950283
UARK-077
3750
8.15
16.1
298
154
446
12.4
5.16
266
1852
129
1.01
1.4
0.704
3052
3116
3/1/96
10:45
960006
UARK-091
4350
8.00
19.4
348
182
526
9.7
6.59
319
2214
150
1.03
2.6
0.732
3626
3692
10/4/96
11:25
960224
UARK-141
3820
8.05
19.0
313
160
457
9.5
5.88
297
1932
131
1.06
2.3
0.678
3186
3182
3/10/97
18:15
970038
UARK-146
4400
8.15
15.9
346
188
537
9.89
6.83
295
2286
153
1.07
2.3
0.821
3700
3740
4/3/97
970150
UARK-152
3060
1499
96.4
1.6
2469
4/17/97
970155
UARK-157
3900
2002
134
2.4
3259
5/22/97
12:15
970183
UARK-161
1480
626
44.3
0.7
1052
6/19/97
970214
UARK-177
3950
2009
135
3.3
3306
8/20/97
1020
970394
UARK-213
3300
3630
8.20
20.7
307
152
423
9.2
5.70
329
1814
118
1.04
1.9
0.731
3022
3002
9/18/97
13:26
970403
UARK-222
3950
3900
1986
133
1.8
3259
10/16/97
12:20
970425
UARK-225
3175
3440
1713
109
1.9
2823
12/18/97
10:10
980008
UARK-233
2400
2630
1245
79.6
1.4
2075
2/18/98
12:10
980028
UARK-247
3020
3320
8.10
13.2
273
140
366
5.5
5.24
293
1618
104
1.9
0.418
2679
2711
4/15/98
16:10
980141
UARK-253
3020
2740
1300
82.8
1.0
2175
4/16/98
11:15
980142
UARK-254
3020
2455
1136
70.6
0.7
1916
4/30/98
11:30
980146
UARK-258
2590
8.10
11.0
212
106
269
6.5
3.83
227
1197
78.2
1.3
0.380
2003
2039
6/18/98
13:45
980176
UARK-277
2425
2740
1315
82.4
1.3
2175

Table A6. KGS analyses of water samples collected from the Arkansas River at the Amazon Ditch headgates, Kansas (continued).
 
Sample

date

m/d/yr

Sample

time 

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

8/27/98
11:30
980246
UARK-310
3320
3260
8.05
16.0
264
142
385
8.8
5.08
234
1611
108
1.6
0.596
2664
2655
10/15/98
11:10
980375
UARK-322
3460
3440
1669
107
2.0
2823
12/17/98
11:30
990004
UARK-333
4030
4090
2128
131
2.8
3441
2/18/99
12:44
990035
UARK-343
4150
4344
2338
141
2.6
3686
4/22/99
14:30
990086
UARK-362
3770
3510
1810
119
2.0
2889
5/20/99
11:00
990110
UARK-373
2520
2580
1213
76.8
0.7
2029
6/15/99
14:30
990154
UARK-377
2430
2410
1096
68.7
0.8
1876
7/13/99
16:30
990206
UARK-383
2760
2640
1254
74.9
1.6
2084
8/17/99
16:15
990284
UARK-389
2100
2080
941
55.1
0.5
1580
9/13/99
17:00
990309
UARK-396
3360
3330
1677
101
1.5
2720
10/22/99
14:30
990331
UARK-402
3720
3780
1927
121
2.2
3144
11/16/99
12:30
990337
UARK-408
3650
3650
1871
117
2.0
3021
12/16/99
11:25
000006
UARK-416
3780
4120
2138
133
3.0
3470
1/13/00
12:30
000012
UARK-422
4080
4140
2106
131
3489
2/17/00
10:30
000064
UARK-426
3720
3800
2011
121
3163
4/4/00
15:20
000071
UARK-433
3480
3500
1722
111
2880

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A7. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Lakin, Kearny County, Kansas. The sample site is located at the bridge south of Lakin (24S-36W-34ACA).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

6/21/93
930548
2890
235
113
333
1388
97.9
1.9
2313
1/5/94
940005
4470
8.10
355
194
555
10.6
6.65
299
2333
159
2.5
0.788
3787
3809
4/7/94
940197
4680
361
198
611
10.4
6.23
2427
178
2.9
0.857
4014
8/15/94
940429
1730
140
58.1
164
12.6
2.16
718
49.3
1.2
0.316
1271
7/25/95
11:55
950164
UARK-008
1900
8.00
12.9
169
73.8
181
7.8
2.67
235
815
51.9
0.88
0.2
0.255
1432
1420
8/8/95
16:25
950220
UARK-046
2850
8.15
18.1
251
115
305
9.0
4.12
309
1317
86.5
1.04
1.1
0.438
2265
2276

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 
 
 
 
 
 
 
 
 

Table A8. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Deerfield, Kearny County, Kansas. The sample site is located at the bridge south of Deerfield (24S-35W-14ACB).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

6/21/93
930547
2870
227
110
330
1371
94.5
2.5
2294
1/5/94
940006
4450
8.15
353
193
554
10.7
6.64
295
2329
159
2.4
0.792
3777
3789
4/7/94
940198
4610
359
196
600
10.2
6.23
2387
175
3.0
0.852
3945
8/15/94
940430
1135
90.9
35.9
097
9.1
1.42
424
28.8
1.0
0.197
755
7/25/95
12:15
950165
UARK-009
1890
7.95
13.0
163
71.8
174
8.0
2.60
234
812
51.6
0.91
0.3
0.263
1414
1412

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 
 
 

Table A9. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Holcomb, Finney Coutny, Kansas. The sample site is located at the bridge south of Holcomb (24S-33W-07CCB).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

6/21/93
930550
3080
231
120
376
1504
113
0.9
2488
1/5/94
940007
4470
8.15
350
193
552
10.5
6.60
287
2333
160
2.3
0.775
3773
3809
4/7/94
940199
4610
353
198
585
10.6
6.39
2397
176
2.6
0.792
3945

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A10. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Garden City, Finney County, Kansas. The sample site is located at the bridge south of Garden City where there is a USGS gaging station (24S-32W-19BDB).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

7/25/95
12:55
950166
UARK-010
1940
8.05
13.2
166
73.0
178
8.2
2.63
238
832
52.7
0.90
0.2
0.270
1446
1456
8/8/95
14:00
950219
UARK-045
2740
8.20
19.1
237
110
284
10.0
3.90
305
1247
81.7
1.03
1.1
0.440
2149
2175
8/28/95
15:45
950284
UARK-078
3020
8.25
18.3
226
123
334
11.1
4.17
213
1421
98.4
0.96
0.2
0.555
2344
2432
3/1/96
12:00
960007
UARK-092
4380
8.05
19.5
349
187
540
10.0
6.68
296
2259
153
1.05
2.6
0.767
3683
3721
5/30/96
10:45
960057
UARK-097
1620
677
43.3
1.2
1174
7/9/96
8:48
960113
UARK-118
3120
1532
103
1.0
2525
7/18/96
11:45
960114
UARK-119
2640
1251
80.2
0.9
2084
7/22/96
11:35
960115
UARK-120
2770
1336
86.3
1.0
2203
8/29/96
11:15
960217
UARK-134
3310
1612
109
1.4
2702
9/6/96
11:45
960218
UARK-135
3800
1947
132
1.8
3163
9/10/96
15:00
960219
UARK-136
3130
1518
101
1.4
2534
9/26/96
13:50
960220
UARK-137
3400
1697
114
1.8
2786
10/2/96
13:40
960221
UARK-138
3780
1929
133
2.0
3144
10/4/96
12:35
960222
UARK-139
3650
8.05
17.8
291
156
437
9.7
5.64
247
1852
124
1.04
1.8
0.689
3025
3021
11/4/96
12:00
960240
UARK-142
3800
1971
131
2.2
3163
11/19/96
16:20
960241
UARK-143
4000
2076
139
2.6
3354
3/10/97
16:30
970037
UARK-145
4380
8.20
15.9
336
188
538
10.2
6.79
255
2303
153
1.04
2.3
0.832
3688
3721
4/17/97
970157
UARK-159
3620
1850
122
2.1
2993
6/20/97
970215
UARK-178
3750
1922
130
2.7
3116
8/21/97
1351
970395
UARK-214
3590
3560
8.20
20.2
295
148
414
10.2
5.49
312
1776
116
1.00
1.5
0.712
2947
2936
10/17/97
13:38
970426
UARK-226
3620
3580
8.05
19.4
283
152
416
10.1
5.56
248
1792
117
1.05
1.8
0.700
2927
2955
12/19/97
14:14
980009
UARK-234
3075
2870
8.00
14.8
240
122
313
2.9
4.57
244
1386
90.7
1.5
0.523
2302
2294
2/18/98
16:45
980029
UARK-248
2990
3200
8.10
15.4
270
137
362
7.4
5.10
269
1558
103
1.7
0.534
2600
2599
4/30/98
10:50
980147
UARK-259
3600
8.15
15.5
291
151
411
8.4
5.28
287
1770
122
2.0
0.564
2926
2974
6/19/98
10:50
980177
UARK-278
2740
3130
1549
104
1.1
2534
9/1/98
8:20
980247
UARK-311
3390
1708
115
2776
2/17/99
16:35
990036
UARK-344
4120
4290
2302
142
2.5
3634
3/18/99
18:10
990040
UARK-348
4350
4157
8.10
17.9
360
189
557
13.3
6.42
260
2280
142
1.00
2.2
0.749
3705
3505
4/21/99
13:25
990087
UARK-363
3790
3730
1991
126
2.1
3097
5/27/99
15:50
990102
UARK-365
2490
2420
8.15
9.4
213
102
249
9.0
3.56
220
1122
70.4
1.04
0.4
0.393
1890
1885
6/16/99
10:30
990155
UARK-378
2420
2430
1111
67.8
0.7
1894
8/19/99
8:50
990285
UARK-390
2190
2150
973
57.4
0.4
1642
9/15/99
16:00
990310
UARK-397
3120
3100
1520
96.5
1.3
2506
10/22/99
15:15
990332
UARK-403
3700
3740
2029
125
2.0
3106

Table A10. KGS analyses of water samples collected from the Arkansas River at Garden City, Kansas (continued).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

11/16/99
14:30
990338
UARK-409
3700
3720
1966
123
1.9
3087
12/27/99
16:30
000007
UARK-417
3890
4040
2088
131
2.8
3393
1/13/00
14:30
000013
UARK-423
3990
4090
2121
131
3441
2/20/00
12:51
000065
UARK-427
3750
3870
2031
125
3230
4/4/00
16:50
000072
UARK-434
3460
3500
1726
113
2880

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A11. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Pierceville, Finney County, Kansas. The sample site is located at the bridge south of Pierceville (25S-31W-13CCC).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

3/1/96
12:30
960008
UARK-093
4280
2184
153
2.7
3624

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A12. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Charleston, Gray County, Kansas. The sample site is located at the bridge south of Charleston (25S-30W-25BDD).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

7/25/95
14:00
950167
UARK-011
1950
8.10
13.3
170
74.6
183
8.7
2.70
238
843
53.6
0.92
0.2
0.263
1469
1465
8/8/95
12:20
950218
UARK-044
2550
8.25
18.2
223
102
261
10.2
3.60
295
1133
76.3
1.00
1.0
0.388
1979
2002
3/1/96
13:00
960009
UARK-094
4350
8.15
19.7
340
182
527
10.2
6.51
301
2214
158
1.05
2.9
0.754
3620
3692

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A13. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Ingalls, Gray County, Kansas. The sample site is located at the bridge south of Ingalls (26S-29W-02ACA).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

3/1/96
13:15
960010
UARK-095
4270
2188
157
3.0
3614

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A14. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Cimarron, Gray County, Kansas. The sample site is located at the bridge south of Cimarron (26S-28W-11DCB).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

7/25/95
14:30
950168
UARK-012
1940
8.00
12.9
174
75.3
185
8.8
2.71
238
830
52.8
0.89
0.1
0.267
1461
1456
8/8/95
11:35
950217
UARK-043
2370
8.20
17.6
207
92.5
234
11.1
3.28
287
1029
69.4
0.94
1.0
0.355
1811
1840
8/28/95
16:55
950285
UARK-079
2190
8.30
19.4
206
79.8
197
9.5
2.97
247
958
60.9
1.10
0.7
0.353
1660
1678
3/1/96
13:45
960011
UARK-096
4100
8.20
17.7
312
170
490
10.8
6.01
264
2075
152
0.96
1.9
0.740
3374
3450
5/30/96
10:00
960058
UARK-098
2250
1033
70.1
1.3
1732
7/9/96
9:36
960116
UARK-121
2730
1294
86.3
1.0
2166
7/22/96
10:45
960117
UARK-122
2870
1381
92.2
0.6
2294
9/10/96
11:00
960223
UARK-140
3600
1849
124
1.2
2974

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 

Table A15. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Howell, Ford County, Kansas. The sample site is located at the bridge south of Howell (26S-26W-21BCB).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

7/25/95
14:50
950169
UARK-013
1920
8.05
12.9
172
74.8
181
9.2
2.67
235
824
52.4
0.90
0.2
0.268
1447
1438
8/8/95
11:00
950216
UARK-042
2120
8.15
16.7
184
80.8
203
11.7
2.89
263
879
60.9
0.86
0.9
0.313
1574
1616

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.

Table A16. Kansas Geological Survey analyses of water samples collected from the Arkansas River near or at Dodge City, Ford County, Kansas. The first two samples were collected at the multi-level observation well site west of Dodge City (26S-25W-29CCCA). Most of the samples were collected at the 14th Avenue bridge where there is a USGS gaging station (26S-25W-35BCC). The last three samples were collected between Dodge City and Fort Dodge (27S-24W-05BBD).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

11/10/98
8:50
980380
UARK-327
3870
3730
8.10
20.2
305
163
439
12.3
5.92
268
1907
125
1.02
2.7
0.738
3123
3097
3/17/99
18:35
990041
UARK-349
4040
3950
8.20
16.3
311
168
467
11.4
6.25
264
2005
140
0.96
2.6
0.662
3268
3306
7/25/95
15:25
950170
UARK-014
1940
8.15
13.3
173
75.1
182
9.2
2.69
239
835
53.2
0.87
0.2
0.275
1464
1456
8/8/95
10:05
950215
UARK-041
1955
8.15
15.1
170
74.0
185
11.5
2.65
246
813
56.8
0.81
0.8
0.249
1454
1469
3/10/97
14:30
970036
UARK-144
4220
8.45
13.8
320
181
523
11.1
6.43
224
2221
155
1.03
2.5
0.807
3555
3566
4/17/97
970158
UARK-160
3370
1737
112
1.8
2758
6/26/97
970216
UARK-179
3060
1519
106
0.9
2469
8/21/97
1527
970396
UARK-215
2940
2890
8.25
17.6
241
114
322
11.6
4.23
283
1366
91.9
0.86
0.9
0.566
2313
2313
10/17/97
15:20
970427
UARK-227
3780
3650
8.20
18.3
283
156
434
10.6
5.55
227
1846
124
1.02
1.9
0.773
2999
3021
12/19/97
12:45
980010
UARK-235
3800
3700
8.25
18.0
306
160
433
1.8
5.95
289
1874
124
2.6
0.653
3079
3068
2/18/98
10:10
980030
UARK-249
3030
3290
8.20
13.1
270
140
365
5.6
5.12
280
1604
110
2.1
0.387
2662
2683
4/30/98
9:50
980148
UARK-260
3420
8.20
14.2
282
145
393
7.5
5.10
274
1669
115
2.0
0.468
2776
2805
6/19/98
9:45
980178
UARK-279
2670
3040
1581
105
1.1
2451
9/1/98
9:15
980248
UARK-312
3220
1591
113
2618
12/16/98
14:15
990002
UARK-331
3840
4040
2090
135
2.9
3393
2/17/99
14:29
990037
UARK-345
4120
3820
1909
148
2.9
3182
4/21/99
10:48
990088
UARK-364
3490
3130
1590
106
1.3
2534
5/19/99
10:35
990111
UARK-374
2560
2530
1204
73.1
0.4
1984
6/17/99
11:25
990156
UARK-379
2500
2450
1090
68.9
0.8
1912
7/16/99
14:44
990207
UARK-384
2710
2690
1290
83.3
0.3
2130
8/20/99
13:30
990286
UARK-391
2230
2200
997
59.7
0.5
1687
8/20/99
17:00
990311
UARK-398
3190
3180
1673
105
1.4
2581
10/26/99
12:30
990333
UARK-404
3610
3650
1940
129
1.9
3021
11/17/99
12:00
990339
UARK-410
3620
3690
1909
127
1.8
3059
12/27/99
14:45
000008
UARK-418
3820
3960
2016
135
3.0
3316
2/20/00
14:00
000066
UARK-428
3700
1921
122
3068
7/20/95
12:00
950159
UARK-004
2180
8.05
12.3
196
86.4
209
10.6
3.14
245
977
63.4
0.93
0.1
0.347
1681
1669
7/27/95
12:00
950183
UARK-027
1980
839
54.1
0.2
1491
8/15/95
13:00
950246
UARK-062
2850
1317
91.6
2276

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 
 
 
 
 
 
 

Table A17. Kansas Geological Survey analyses of water samples collected from the Arkansas River at Ford, Ford County, Kansas. The sample site is located at the bridge north of Ford (27S-22W-32BDA).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

7/25/95
16:00
950171
UARK-015
1960
8.05
13.2
178
75.5
183
11.1
2.71
242
851
53.8
0.87
0.2
0.295
1490
1473
8/7/95
20:45
950214
UARK-040
1955
7.95
15.3
174
73.9
184
7.7
2.67
254
813
54.0
0.96
0.4
0.250
1453
1469

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.
 
 
 
 
 
 

Table A18. Kansas Geological Survey analyses of water samples collected from the Arkansas River near Kinsley, Edwards County, Kansas. The first two samples were collected below the Highway 183 bridge south of Kinsley (25S-19W-9ADD); the last two samples were collected below the Highway 50 bridge east of Kinsley (24S-19W-26DCD).
 
Sample

date

m/d/yr

Sample

time

24 hr

KGS

lab

number

Project

number

Field

Sp.C.

m S/cm

Lab

Sp.C.

m S/cm

Lab

pH

SiO2

mg/L

Ca

mg/L

Mg

mg/L

Na

mg/L

K

mg/L

Sr

mg/L

HCO3

mg/L

SO4

mg/L

Cl

mg/L

F

mg/L

NO3-N

mg/L

B

mg/L

TDSa

sum

mg/L

TDSb

estd.

mg/L

7/25/95
16:45
950172
UARK-016
1545
8.10
15.7
137
51.1
146
7.4
1.55
255
557
58.9
1.05
0.2
0.180
1103
1109
9/6/95
11:00
950294
UARK-084
1945
722
72.1
0.2
1460
8/3/95
16:00
950245
UARK-061
1920
790
52.1
1438
8/7/95
19:00
950213
UARK-039
1970
8.05
15.4
178
74.1
182
9.3
2.64
279
810
54.7
0.99
0.2
0.264
1466
1482

a Total dissolved solids calculated from the sum of constituents. The bicarbonate concentration is multiplied by 0.4917 to represent carbonate minerals.

b TDS estimated from a polynomial fit of TDS sum versus lab specific conductance (Sp.C.) for different sampling sites along the Arkansas River in Kansas.