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TABLE 4 FOR WATER-RESOURCES INVESTIGATIONS REPORT 01-4123

Table 4. Comparison of measured and estimated water-level changes at wetland NC-5
[Max., maximum; ft, feet; GWRF, ground-water response factor; m, meter; STD, standard deviation, High, using GWRF+STD for 1,969-ft distance; Low, using GWRF-STD for 2,297-ft distance]
Well or scour Max. water-level change (ft) Day of max. water-level change Water-level change/river-stage change GWRF day Simulated GWRF value   Estimated maximum water-level change (ft)
1,969 ft (600 m) distance STD 2,297 ft (700 m) distance STD   High 1,969 ft (600 m) distance 2,297 ft (700 m) distance Low
Event beginning on 6-28-99 and ending on 7-15-99. Maximum river stage change was 9.87 ft (3.01 m) on 7-1-99 (event day 4). GWRF from 8-day, 3-m simulation results
Wetland NC-5 0.92 7-3-99 0.093 6 0.181 0.118 0.135 0.101   2.95 1.79 1.33 0.34
Well NC-5A 1.75 7-3-99 .177 6 .181 .118 .135 .101   2.95 1.79 1.33 .34
Well NC-5C 1.41 7-3-99 .143 6 .181 .118 .135 .101   2.95 1.79 1.33 .34
Well NC-5D 1.30 7-3-99 .132 6 .181 .118 .135 .101   2.95 1.79 1.33 .34
Event beginning on 8-9-99 and ending on 8-16-99. Maximum river stage change was 3.95 ft (1.2 m) on 8-11-99 (event day 3). GWRF from 8-day, 1-m simulation results.
Wetland NC-5 0.28 8-13-99 0.071 5 0.115 0.088 0.079 0.070   0.802 0.454 0.312 0.036
Well NC-5 .39 8-12-99 .099 4 .091 .077 .060 .059   .664 .36 .237 .004
Well NC-5C .30 8-13-99 .076 5 .115 .088 .079 .070   .802 .454 .312 .036
Well NC-5D .41 8-12-99 .104 4 .091 .077 .060 .059   .664 .36 .237 .004
Event beginning on 9-27-99 and ending on 10-17-99. Maximum river stage change was 3.04 ft (0.93 m) on 9-29-99 (event day 3). GWRF from 8-day, 1-m simulation results.
Wetland NC-5 0.8 10-3-99 0.263 7 0.162 0.107 0.117 0.089   0.818 0.492 0.356 0.085
Well NC-5 .45 10-1-99 .148 5 .115 .088 .079 .070   .617 .349 .240 .027
Well NC-5D .44 10-1-99 .144 5 .115 .088 .079 .070   .617 .349 .240 .027

 

For more information, contact:

Brian P. Kelly, Hydrologist
U.S. Geological Survey
Missouri Water Science Center
401 NW Capital Drive
Independence, MO 64086
Telephone: (816) 554-2414
Fax (816) 554-9273

 

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