USGS Water-Year Summary for Site USGS 04282500

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	00060 Discharge(Mean)

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Water year 2022: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2022

04282500 OTTER CREEK AT MIDDLEBURY, VT

LOCATION - Lat 44°00'47", long 73°10'06" referenced to North American Datum of 1927, Addison County, VT, Hydrologic Unit 04150402, on right bank, 150 ft upstream from State Highway 125 bridge in Middlebury, 0.1 mi southwest of US 7 and State Highway 125 intersection, and 3.6 mi downstream from Middlebury River.

DRAINAGE AREA - 628 mi².

REVISIONS HISTORY - WSP 434: 1903-04. WSP 684: 1913(M), drainage area. WSP 1114: 1913. WSP 1207: 1929, 1931.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Discharge records: April 1903 to April 1907, October 1910 to January 1920, October 1928 to current year.

GAGE - Water-stage recorder. Datum of gage is 335.36 ft above North American Vertical Datum of 1988. Nonrecording gage at site 1,800 ft upstream at datum 10 ft lower, April 1, 1903 to April 30, 1907 and October 5, 1910 to January 31, 1920; nonrecording gage at present site and datum, October 1, 1928 to October 17, 1933.

COOPERATION - Vermont Department of Environmental Conservation and USGS Federal Priority Streamgage Program and Groundwater and Streamflow Information Program.

REMARKS - WATER YEARS 2014-22: Records good except those for estimated discharges, which are poor. Some regulation by Chittenden Reservoir, usable capacity, 819 million ft³ on East Creek.

EXTREMES OUTSIDE PERIOD OF RECORD - Maximum discharge since at least 1830, 13,600 ft³/s, November 4, 1927, gage height, 13.3 ft, present datum.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 11,000 ft³/s, March 20, 1936, gage height, 10.30 ft.

DISCHARGE, CUBIC FEET PER SECOND
YEAR 2021-10-01 to 2022-09-30
DAILY MEAN VALUES
[e, Value has been estimated.]

Day	Oct
	2021
1	351
2	317
3	304
4	298
5	300
6	370
7	422
8	366
9	323
10	289
11	265
12	276
13	262
14	248
15	288
16	374
17	835
18	1,040
19	1,080
20	932
21	734
22	634
23	631
24	574
25	578
26	848
27	1,130
28	1,310
29	1,320
30	1,250
31	1,790
Total	19,740
Mean	637
Max	1790
Min	248
Ac-ft	39,150

Day	Nov
2021
1	2,220
2	2,030
3	2,050
4	2,060
5	2,050
6	1,980
7	1,890
8	1,760
9	1,610
10	1,460
11	1,350
12	1,290
13	1,470
14	1,790
15	1,830
16	1,860
17	1,850
18	1,830
19	1,950
20	1,870
21	1,840
22	1,800
23	1,720
24	1,660
25	1,550
26	1,460
27	1,440
28	1,400
29	1,350
30	1,270
--
Total	51,690
Mean	1,723
Max	2220
Min	1270
Ac-ft	102,500

Day	Dec
2021
1	1,190
2	1,160
3	1,300
4	1,330
5	1,340
6	1,310
7	1,600
8	1,650
9	1,700
10	1,710
11	1,790
12	1,990
13	1,960
14	1,990
15	2,030
16	2,130
17	2,150
18	2,120
19	2,100
20	2,020
21	1,950
22	1,850
23	1,720
24	1,570
25	1,440
26	1,410
27	1,390
28	1,340
29	1,270
30	1,180
31	1,170
Total	50,860
Mean	1,641
Max	2150
Min	1160
Ac-ft	100,900

Day	Jan
2022
1	1,270
2	1,480
3	1,520
4	1,460
5	1,290
6	1,290
7	e1,220
8	e1,200
9	1,280
10	e1,230
11	e1,100
12	e1,030
13	e1,020
14	e988
15	e834
16	e654
17	606
18	e652
19	e663
20	e664
21	e642
22	e608
23	e588
24	e577
25	603
26	e592
27	e592
28	e589
29	e594
30	e592
31	e590
Total	28,020
Mean	904
Max	1520
Min	577
Ac-ft	55,570

Day	Feb
2022
1	e587
2	e583
3	e581
4	e587
5	e598
6	e620
7	e645
8	669
9	629
10	547
11	511
12	531
13	e609
14	e688
15	e701
16	649
17	683
18	1,560
19	e1,620
20	e1,600
21	1,610
22	1,690
23	2,090
24	2,090
25	e2,010
26	e2,010
27	2,060
28	e2,130
--
--
--
Total	30,890
Mean	1,103
Max	2130
Min	511
Ac-ft	61,270

Day	Mar
2022
1	2,210
2	2,210
3	2,150
4	2,030
5	1,870
6	1,790
7	1,820
8	1,890
9	1,870
10	1,930
11	2,120
12	2,420
13	e2,480
14	e2,490
15	2,360
16	2,240
17	2,220
18	2,300
19	2,400
20	2,680
21	2,680
22	2,670
23	2,750
24	2,860
25	3,010
26	3,050
27	2,980
28	2,890
29	2,770
30	2,640
31	2,520
Total	74,300
Mean	2,397
Max	3050
Min	1790
Ac-ft	147,400

Day	Apr
2022
1	2,810
2	2,550
3	2,390
4	2,310
5	2,270
6	2,220
7	2,160
8	2,470
9	2,480
10	2,560
11	2,490
12	2,520
13	2,560
14	2,570
15	2,560
16	2,480
17	2,410
18	2,320
19	2,420
20	2,490
21	2,430
22	2,440
23	2,420
24	2,390
25	2,350
26	2,280
27	2,310
28	2,250
29	2,130
30	2,030
--
Total	72,070
Mean	2,402
Max	2810
Min	2030
Ac-ft	142,900

Day	May
2022
1	1,900
2	1,760
3	1,630
4	1,520
5	1,460
6	1,440
7	1,390
8	1,280
9	1,120
10	974
11	866
12	761
13	681
14	646
15	1,010
16	1,540
17	2,100
18	2,080
19	2,100
20	2,170
21	2,200
22	2,190
23	2,150
24	2,040
25	1,880
26	1,700
27	1,500
28	1,290
29	1,070
30	882
31	728
Total	46,060
Mean	1,486
Max	2200
Min	646
Ac-ft	91,350

Day	Jun
2022
1	645
2	620
3	673
4	727
5	777
6	683
7	591
8	613
9	740
10	911
11	860
12	707
13	578
14	572
15	557
16	473
17	423
18	431
19	430
20	418
21	391
22	386
23	399
24	394
25	393
26	350
27	372
28	511
29	455
30	363
--
Total	16,440
Mean	548
Max	911
Min	350
Ac-ft	32,610

Day	Jul
2022
1	314
2	298
3	292
4	266
5	238
6	258
7	293
8	278
9	251
10	235
11	209
12	210
13	213
14	226
15	203
16	197
17	186
18	177
19	292
20	423
21	327
22	303
23	276
24	223
25	236
26	312
27	296
28	247
29	215
30	202
31	208
Total	7,904
Mean	255
Max	423
Min	177
Ac-ft	15,680

Day	Aug
2022
1	193
2	175
3	164
4	161
5	170
6	196
7	203
8	185
9	205
10	275
11	238
12	192
13	181
14	166
15	158
16	147
17	144
18	160
19	182
20	168
21	155
22	144
23	143
24	170
25	206
26	189
27	221
28	275
29	246
30	202
31	229
Total	5,843
Mean	188
Max	275
Min	143
Ac-ft	11,590

Day	Sep
2022
1	360
2	378
3	285
4	217
5	191
6	211
7	558
8	721
9	504
10	354
11	277
12	230
13	238
14	496
15	445
16	395
17	310
18	252
19	237
20	629
21	1,110
22	1,090
23	1,150
24	1,090
25	841
26	690
27	634
28	569
29	503
30	461
--
Total	15,430
Mean	514
Max	1150
Min	191
Ac-ft	30,600

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1903 - 2022, BY WATER YEAR (WY)
	Oct	Nov	Dec	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep
Mean	682	937	1,009	955	881	1,533	2,536	1,544	870	603	494	482
Max	2,396	2,675	2,610	2,509	2,414	4,538	4,500	3,716	3,025	2,327	2,624	3,003
(WY)	(2011)	(2004)	(1984)	(1949)	(1981)	(1936)	(1960)	(1996)	(1947)	(2013)	(1976)	(2011)
Min	166	241	247	205	229	384	885	370	208	126	129	145
(WY)	(2002)	(2002)	(1948)	(1948)	(1980)	(1940)	(1995)	(1903)	(1965)	(1965)	(1965)	(2020)

SUMMARY STATISTICS
	Water Year 2022		Water Years 1903 - 2022
Annual total	419,200
Annual mean	1,149		1,044
Highest annual mean			1,912	2011
Lowest annual mean			397.3	1965
Highest daily mean	3,050	Mar 26	11,000	Mar 21, 1936
Lowest daily mean	143.0	Aug 23	86.1	Sep 09, 2002
Annual 7-day minimum	156.6	Aug 17	101.6	Sep 03, 2002
Maximum peak flow	3,070^a	Mar 25	13,600	Nov 04, 1927
Maximum peak stage	4.93	Mar 25	21.07	Mar 30, 1913
Annual runoff (cfsm)	1.83		1.66
Annual runoff (inches)	24.8		22.6
10 percent exceeds	2,354		2,360
50 percent exceeds	974.0		675.0
90 percent exceeds	214.2		262.0

^a Discharge affected to unknown degree by Regulation or Diversion

USGS Water-data graph for site USGS 04282500