USGS Water-Year Summary for Site USGS 07159550

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	Available Parameters
	00054 Reservoir storage(Obs.)

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Water year 2017: 2016-10-01 to 2017-09-30

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USGS Water-Year Summary 2017

07159550 LAKE HEFNER AT OKLAHOMA CITY, OK

LOCATION - Lat 35°34'58", long 97°35'43" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.23, T.13 N., R.4 W., Oklahoma County, OK, Hydrologic Unit 11050002, on south side of dam on Bluff Creek, 50 ft north of intake structure, 3.0 mi northeast of Hefner Canal at Oklahoma City (07240000) and 6.0 mi northeast of Bethany.

DRAINAGE AREA - 8.99 mi². From automated delineation using 10-meter National Elevation Dataset digital elevation model data dated 10/01/2006 and Watershed Boundary Dataset dated 10/01/2006, using Albers Equal-Area Projection, North American Datum 1983. The source of water for Lake Hefner is mainly diversion of water from the North Canadian River at Lake Overholser through Bluff Creek Canal and runoff in the drainage basin.

REVISIONS HISTORY - WDR 2012: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - November 17, 1999 to current year.

GAGE - Water-stage recorder. Datum of gage is 0.248ft above NAVD of 1988 tied to RM-3 by USGS Personnel on 06/25/2020. Prior to 06/25/2020 datum of gage was NGVD of 1929.

REMARKS - 10/01/2022 - 09/30/2023: records good. Reservoir is formed by an earthen dam which is more than 3 mi long and has a maximum height of 112 ft. The reservoir was constructed in 1947. Capacity, 107,000 acre-ft, elevation, 1209.0 ft, top of stone wall; normal pool, 75,355 acre-ft, elevation, 1199.0 ft. Figures given herein represent total contents. Capacity table supplied by City of Oklahoma City. Quality of data for other periods can be obtained by contacting the Oklahoma-Texas Water Science Center.

EXTREMES FOR PERIOD OF RECORD - Maximum contents, unknown acre-ft, June 5,6, 2013, elevation 1,201.11 ft: minimum, 39,340 acre-ft, Jan. 27, 2013, elevation, 1,182.29 ft.

RESERVOIR STORAGE, ACRE-FEET
YEAR 2016-10-01 to 2017-09-30
DAILY OBSERVATION AT 08:00 AM VALUES
[e, Value has been estimated.]

Day	Oct
	2016
1	65,700
2	65,590
3	65,460
4	65,320
5	65,180
6	65,100
7	64,950
8	64,860
9	64,740
10	64,620
11	64,460
12	64,250
13	64,130
14	64,030
15	64,360
16	64,180
17	64,070
18	63,920
19	63,750
20	63,570
21	63,380
22	63,210
23	63,050
24	62,870
25	62,730
26	62,570
27	62,430
28	62,320
29	62,160
30	61,970
31	61,860
Mean	63,900
Max	65700
Min	61860

Day	Nov
2016
1	61,680
2	61,560
3	61,610
4	61,470
5	61,360
6	61,220
7	61,100
8	61,040
9	60,900
10	60,780
11	60,650
12	60,520
13	60,380
14	60,250
15	60,110
16	59,930
17	59,800
18	59,600
19	59,440
20	59,260
21	59,150
22	58,990
23	58,860
24	58,720
25	58,570
26	58,460
27	58,320
28	58,280
29	58,170
30	58,000
--
Mean	59,940
Max	61680
Min	58000

Day	Dec
2016
1	57,870
2	57,740
3	57,650
4	57,630
5	57,520
6	57,370
7	57,240
8	57,280
9	57,170
10	57,020
11	56,880
12	56,780
13	56,670
14	56,510
15	56,400
16	56,260
17	56,170
18	56,060
19	55,960
20	55,830
21	55,660
22	55,550
23	55,440
24	55,360
25	55,250
26	55,210
27	55,120
28	55,020
29	54,910
30	54,800
31	54,830
Mean	56,289
Max	57870
Min	54800

Day	Jan
2017
1	54,870
2	54,800
3	54,800
4	54,700
5	54,630
6	54,630
7	54,610
8	54,530
9	54,440
10	54,440
11	54,380
12	54,290
13	54,190
14	e54,150
15	e54,200
16	54,660
17	54,980
18	55,150
19	55,170
20	55,170
21	55,080
22	55,040
23	55,380
24	55,300
25	55,190
26	55,320
27	55,380
28	55,420
29	55,420
30	55,380
31	55,340
Mean	54,870
Max	55420
Min	54150

Day	Feb
2017
1	55,300
2	55,250
3	55,230
4	55,190
5	55,150
6	55,150
7	55,120
8	55,080
9	55,020
10	55,020
11	54,950
12	54,910
13	54,850
14	55,080
15	55,300
16	55,340
17	55,400
18	55,490
19	55,500
20	55,890
21	57,520
22	58,170
23	58,480
24	58,770
25	59,020
26	58,990
27	59,060
28	59,130
--
--
--
Mean	56,189
Max	59130
Min	54850

Day	Mar
2017
1	59,130
2	59,150
3	59,150
4	59,150
5	59,080
6	59,130
7	59,130
8	59,120
9	59,150
10	59,280
11	59,530
12	59,930
13	60,060
14	60,000
15	59,890
16	59,750
17	59,800
18	60,090
19	60,310
20	60,360
21	60,470
22	60,580
23	60,670
24	60,650
25	60,740
26	60,810
27	60,900
28	60,970
29	61,860
30	62,640
31	64,320
Mean	60,190
Max	64320
Min	59080

Day	Apr
2017
1	66,140
2	67,720
3	68,890
4	69,700
5	70,290
6	70,840
7	71,440
8	72,050
9	72,570
10	72,840
11	73,200
12	73,610
13	74,000
14	74,720
15	75,180
16	75,730
17	76,380
18	76,410
19	76,540
20	76,680
21	77,300
22	77,880
23	78,020
24	78,170
25	78,050
26	78,020
27	77,900
28	77,820
29	78,340
30	78,610
--
Mean	74,500
Max	78610
Min	66140

Day	May
2017
1	78,460
2	78,310
3	78,230
4	78,110
5	77,960
6	77,850
7	77,730
8	77,630
9	77,850
10	77,790
11	77,900
12	77,850
13	77,710
14	77,760
15	77,850
16	77,820
17	77,960
18	77,880
19	77,900
20	77,960
21	77,960
22	77,930
23	77,960
24	77,930
25	77,850
26	77,850
27	77,900
28	77,760
29	77,730
30	77,680
31	77,520
Mean	77,890
Max	78460
Min	77520

Day	Jun
2017
1	77,380
2	77,220
3	77,220
4	77,140
5	77,110
6	77,000
7	76,920
8	76,870
9	76,820
10	76,860
11	76,840
12	76,730
13	76,690
14	76,880
15	77,080
16	77,300
17	77,470
18	77,670
19	78,080
20	78,520
21	78,950
22	79,120
23	79,330
24	79,510
25	79,430
26	79,300
27	79,130
28	78,930
29	78,710
30	78,540
--
Mean	77,820
Max	79510
Min	76690

Day	Jul
2017
1	78,460
2	78,350
3	78,240
4	78,600
5	78,520
6	78,430
7	78,280
8	78,170
9	78,020
10	77,880
11	77,670
12	77,490
13	77,250
14	77,060
15	76,900
16	76,790
17	76,650
18	76,460
19	76,250
20	76,060
21	75,870
22	75,630
23	75,400
24	75,230
25	75,050
26	74,840
27	74,630
28	74,590
29	74,460
30	74,280
31	74,100
Mean	76,630
Max	78600
Min	74100

Day	Aug
2017
1	74,050
2	74,050
3	73,950
4	73,820
5	73,720
6	73,640
7	73,510
8	73,360
9	73,280
10	73,290
11	73,670
12	74,360
13	75,460
14	76,460
15	76,760
16	77,630
17	78,310
18	78,220
19	78,050
20	77,900
21	77,700
22	77,640
23	77,840
24	78,300
25	78,210
26	79,030
27	78,880
28	78,730
29	78,550
30	78,350
31	78,140
Mean	76,290
Max	79030
Min	73280

Day	Sep
2017
1	78,020
2	77,930
3	77,840
4	77,730
5	77,540
6	77,380
7	77,240
8	77,050
9	76,880
10	76,720
11	76,560
12	76,390
13	76,260
14	76,060
15	75,930
16	75,710
17	75,570
18	75,540
19	75,460
20	75,270
21	75,150
22	74,960
23	74,810
24	74,650
25	74,450
26	74,450
27	75,260
28	76,910
29	76,880
30	76,770
--
Mean	76,250
Max	78020
Min	74450

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