May 2021 CURRENT WATER RESOURCES CONDITIONS IN MAINE

CURRENT WATER RESOURCES CONDITIONS IN MAINE

U.S. Department of the Interior Seal

May 2021

USGS New England Water Science Center, Maine Office, in cooperation with Maine Emergency Management Agency

PROVISIONAL DATA: All data presented in this report are provisional and subject to revision.

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Monthly Surface Water Conditions Map

Monthly Groundwater Conditions Map

SURFACE WATER
Station Number	Station Name	Drainage Area (mi²)	Years Of Record	Normal Range (cfs)	Monthly Mean (cfs)	Monthly Mean (in)	Percentile Class
01010000	St. John River at Ninemile Bridge, ME	1341	70	4610 - 8720	2380	2.05	Much below normal
01014000	St. John River below Fish River at Fort Kent, ME	5929	94	20700 - 42200	10300	2.00	Much below normal
01017000	Aroostook River at Washburn, ME	1654	90	4790 - 9390	3190	2.22	Much below normal
01022500	Narraguagus River at Cherryfield, ME	227	73	424 - 826	296	1.50	Much below normal
01029500	East Branch Penobscot River at Grindstone, ME	837	118	3070 - 6250	2500	3.44	Below normal
01030500	Mattawamkeag River near Mattawamkeag, ME	1418	86	3540 - 6720	2710	2.20	Below normal
01031500	Piscataquis River near Dover-Foxcroft, ME	298	118	696 - 1640	428	1.66	Much below normal
01038000	Sheepscot River at North Whitefield, ME	145	82	209 - 442	158	1.26	Much below normal
01047000	Carrabassett River near North Anson, ME	353	118	880 - 1980	572	1.87	Much below normal
01055000	Swift River near Roxbury, ME	96.9	91	270 - 615	143	1.70	Much below normal
01055500	Nezinscot River at Turner Center, ME	169	79	258 - 594	300	2.05	Normal
01057000	Little Androscoggin River near South Paris, ME	73.5	107	130 - 277	128	2.01	Below normal
01066000	Saco River at Cornish, ME	1293	104	3540 - 6820	2860	2.55	Much below normal
01069500	Mousam River near West Kennebunk, ME	99	81	143 - 341	153	1.78	Normal

GROUNDWATER
Station Number	Station Name	Years Of Record	Normal Range (ft)	Monthly Median (ft)	Departure From Monthly Median (ft)	Percentile Class
432310070393301	YW 807 (Sanford, ME)	31²	18.10 - 16.00	19.11	2.11	Much below normal
435453070013601	CW 26 (Brunswick, ME)	41²	30.40 - 27.40	29.67	0.57	Normal
440213070203201	ANW 1135 (Rang Pond, ME)	20²	9.49 - 8.98	9.74	0.50	Below normal
440823070291501	OW 1214 (Oxford, ME)	40²	7.99 - 6.73	8.44	0.92	Below normal
440918069564001	KW 766 (Litchfield, ME)	43²	46.10 - 42.50	46.30	1.90	Below normal
441801069455501	KW 887 (Augusta Arboretum, ME)	16²	11.40 - 10.30	11.41	0.61	Below normal
444302070252401	FW 916 (Weld/Mt. Blue, ME)	19²	21.30 - 18.20	20.62	1.62	Normal
444950068220602	HW 1A (Amherst, ME)	31²	18.50 - 17.50	20.47	2.57	Much below normal
445227067520101	WW 797 Township T24MD BPP (Hadley Lakes, ME)	35²	4.37 - 3.74	4.45	0.38	Below normal
445319068560101	PEW 456 (Kenduskeag, ME)	43²	20.40 - 18.90	20.70	1.20	Below normal
450713067162801	WW 796 (Calais, ME)	21²	1.67 - 0.38	0.79	-0.20	Normal
453629068531801	PEW 594 (Millinocket, ME)	27²	8.53 - 7.07	8.87	1.30	Below normal
463642069344601	ARW 891 (Clayton Lake, ME)	42²	13.50 - 12.30	14.58	1.58	Much below normal
471457068353001	ARW 890 (Fort Kent, ME)	43²	6.26 - 3.64	6.10	1.23	Normal
¹ Daily Value Records and Field Readings ² Daily Value Records Only

Flow or Water Level	Percentile Range	Explanation
Low	0^th	The monthly mean streamflow or median water level during this month is the lowest ever recorded during the period of record for this site.
Much below normal	0^th to 10^th	The monthly mean streamflow or median water level during this month is less than the 10^th percentile when compared to all of the months during the period of record for this site.
Below normal	10^th to 25^th	The monthly mean streamflow or median water level during this month is between the 10^th and 25^th percentiles when compared to all of the months during the period of record for this site.
Normal	25^th to 75^th	The monthly mean streamflow or median water level during this month is between the 25^th and 75^th percentiles when compared to all of the months during the period of record for this site.
Above normal	75^th to 90^th	The monthly mean streamflow or median water level during this month is between the 75^th and 90^th percentiles when compared to all of the months during the period of record for this site.
Much above normal	90^th to 100^th	The monthly mean streamflow or median water level during this month is greater than the 90^th percentile when compared to all of the months during the period of record for this site.
High	100^th	The monthly mean streamflow or median water level during this month is the highest ever recorded during the period of record for this site.