August 2021 CURRENT WATER RESOURCES CONDITIONS IN MASSACHUSETTS

CURRENT WATER RESOURCES CONDITIONS IN MASSACHUSETTS

August 2021

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	71	14.7 - 37.2	93.4	1.63	Much above normal
01097300	Nashoba Brook near Acton, MA	12.8	58	1.17 - 6.66	13.6	1.22	Much above normal
01101000	Parker River at Byfield, MA	21.3	75	1.03 - 8.33	32.2	1.74	Much above normal
01103500	Charles River at Dover, MA	183	83	39.8 - 129	268	1.69	Much above normal
01105600	Old Swamp River near South Weymouth, MA	4.5	55	0.95 - 4.28	13.5	3.46	High
01105730	Indian Head River at Hanover, MA	30.3	55	7.62 - 30.3	87.7	3.34	Much above normal
01105880	Herring River at North Harwich, MA	9.4	55	3.92 - 8.64	1.95	0.24	Much below normal
01108000	Taunton River near Bridgewater, MA	261	91	77.1 - 204	647	2.86	Much above normal
01109000	Wading River near Norton, MA	43.3	96	6.91 - 24	59.6	1.59	Much above normal
01162500	Priest Brook near Winchendon, MA	19.4	105	2.47 - 11.9	44.4	2.64	Much above normal
01169000	North River at Shattuckville, MA	89	81	23.2 - 72.8	176	2.28	Much above normal
01169900	South River near Conway, MA	24.1	55	7.92 - 28.9	57.2	2.74	Much above normal
01170100	Green River near Conway, MA	41.4	53	12.3 - 39.7	84.3	2.35	Much above normal
01171500	Mill River at Northampton, MA	52.6	82	14.8 - 43.8	113	2.48	Much above normal
01176000	Quaboag River at West Brimfield, MA	150	109	40.8 - 109	206	1.58	Much above normal
01181000	West Branch Westfield River at Huntington, MA	94	85	20.4 - 70.5	288	3.53	Much above normal
01197500	Housatonic River near Great Barrington, MA	282	108	128 - 284	713	2.91	Much above normal
01198000	Green River near Great Barrington, MA	51	69	7.93 - 31.6	124	2.80	Much above normal
01333000	Green River at Williamstown, MA	42.6	71	12 - 39.1	93.7	2.54	Above 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)	42¹	24.00 - 12.70	12.75	-10.55	Normal
415228070554601	LKW 14 (Lakeville, MA)	56¹	17.80 - 15.80	7.50	-9.10	High
424520070562401	NIW 27 (Newbury, MA)	56¹	10.00 - 8.39	5.74	-3.56	Much above normal
422745073112001	PTW 51 (Pittsfield, MA)	58¹	20.00 - 16.50	14.26	-3.94	Much above normal
423401071093801	XMW 78 (Wilmington, MA)	69¹	9.50 - 8.44	7.18	-1.75	Much above normal
424204072015201	XNW 13 (Winchendon, MA)	77¹	10.80 - 7.56	5.25	-4.58	Much above 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.