September 2020 CURRENT WATER RESOURCES CONDITIONS IN MASSACHUSETTS

CURRENT WATER RESOURCES CONDITIONS IN MASSACHUSETTS

September 2020

USGS New England Water Science Center, Massachusetts-Rhode Island Office

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

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SURFACE WATER
Station Number	Station Name	Drainage Area (mi²)	Years Of Record	Normal Range (cfs)	Monthly Mean (cfs)	Monthly Mean (in)	Percentile Class
01096000	Squannacook River near West Groton, MA	65.9	70	13.9 - 36.4	8.62	0.15	Below normal
01097300	Nashoba Brook near Acton, MA	12.8	57	0.944 - 6.38	0.23	0.02	Much below normal
01101000	Parker River at Byfield, MA	21.3	74	0.701 - 8.33	1.1	0.06	Normal
01103500	Charles River at Dover, MA	183	82	38.8 - 123	24.1	0.15	Below normal
01105600	Old Swamp River near South Weymouth, MA	4.5	54	1.09 - 4.86	0.235	0.06	Much below normal
01105730	Indian Head River at Hanover, MA	30.3	54	9.26 - 31.6	3.43	0.13	Much below normal
01105880	Herring River at North Harwich, MA	9.4	54	2.81 - 9.45	2.38	0.28	Below normal
01108000	Taunton River near Bridgewater, MA	261	90	68.4 - 230	41.9	0.18	Much below normal
01109000	Wading River near Norton, MA	43.3	95	6.75 - 24.3	1.47	0.04	Much below normal
01162500	Priest Brook near Winchendon, MA	19.4	104	2.76 - 14.8	0.701	0.04	Much below normal
01169000	North River at Shattuckville, MA	89	80	26.3 - 78.2	25.8	0.32	Below normal
01169900	South River near Conway, MA	24.1	54	8.05 - 27.2	6.89	0.32	Below normal
01170100	Green River near Conway, MA	41.4	52	12.5 - 35.7	8.67	0.23	Below normal
01171500	Mill River at Northampton, MA	52.6	81	14.4 - 46.5	13.5	0.29	Below normal
01176000	Quaboag River at West Brimfield, MA	150	108	36.8 - 110	35.5	0.26	Below normal
01181000	West Branch Westfield River at Huntington, MA	94	85	18.2 - 75.7	12.3	0.15	Much below normal
01197500	Housatonic River near Great Barrington, MA	282	107	134 - 275	84.1	0.33	Much below normal
01198000	Green River near Great Barrington, MA	51	68	6.16 - 35.8	11.3	0.25	Normal
01333000	Green River at Williamstown, MA	42.6	71	10.9 - 39.9	13.6	0.36	Normal

GROUNDWATER
Station Number	Station Name	Years Of Record	Normal Range (ft)	Monthly Median (ft)	Departure From Monthly Median (ft)	Percentile Class
411555070021901	NBW 228 (Nantucket, MA)	38¹	25.30 - 23.80	23.98	-0.62	Normal
412346070353403	ENW 52 (Edgartown, MA)	41¹	18.60 - 16.60	16.08	-1.82	Above normal
415228070554601	LKW 14 (Lakeville, MA)	55¹	19.00 - 16.50	18.42	0.62	Normal
422812071244401	ACW 158 (Acton, MA)	55¹	19.70 - 19.00	19.58	0.18	Normal
424520070562401	NIW 27 (Newbury, MA)	55¹	11.10 - 9.39	10.52	0.32	Normal
422341071464901	WSW 26 (West Boylston, MA)	25¹	10.40 - 6.96	10.41	1.41	Below normal
422745073112001	PTW 51 (Pittsfield, MA)	56¹	22.10 - 17.30	22.27	2.47	Below normal
423401071093801	XMW 78 (Wilmington, MA)	68¹	9.67 - 8.90	7.24	-1.98	High
424204072015201	XNW 13 (Winchendon, MA)	78¹	11.20 - 9.31	11.74	1.14	Below 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.