August 2021 CURRENT WATER RESOURCES CONDITIONS IN RHODE ISLAND

CURRENT WATER RESOURCES CONDITIONS IN RHODE ISLAND

U.S. Department of the Interior Seal

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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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
01111500	Branch River at Forestdale, RI	91.2	81	26.5 - 65.9	119	1.50	Much above normal
01114000	Moshassuck River at Providence, RI	23.1	58	11.6 - 23.1	30	1.50	Above normal
01114500	Woonasquatucket River at Centerdale, RI	38.3	80	17.5 - 33	39.6	1.19	Above normal
01117468	Beaver River near Usquepaug, RI	8.87	46	3.96 - 10.2	11.9	1.55	Above normal
01117500	Pawcatuck River at Wood River Junction, RI	100	80	48 - 99.2	93.6	1.08	Normal
01117800	Wood River near Arcadia, RI	35.2	57	15.3 - 37.8	38.8	1.27	Above normal
01118000	Wood River at Hope Valley, RI	72.4	80	36.3 - 77.5	73.6	1.17	Normal
01118500	Pawcatuck River at Westerly, RI	295	80	131 - 285	263	1.03	Normal

GROUNDWATER
Station Number	Station Name	Years Of Record	Normal Range (ft)	Monthly Median (ft)	Departure From Monthly Median (ft)	Percentile Class
412154071462901	WEW 522 (Westerly, RI)	52¹	13.80 - 12.70	13.34	-0.16	Normal
412214071394001	CHW 18 (Charlestown, RI)	73¹	19.10 - 17.80	9.99	-8.61	Much above normal
412844071422802	RIW 600 (Richmond, RI)	43¹	34.50 - 33.90	34.06	-0.24	Normal
412918071321001	SNW 6 (South Kingstown, RI)	66¹	13.10 - 12.30	12.18	-0.62	Above normal
413358071433801	EXW 475 (Exeter, RI)	40¹	15.90 - 14.70	15.09	-0.41	Normal
413907071465001	WGW 181 (West Greenwich, RI)	53¹	16.80 - 8.75	8.39	-7.91	Much above normal
414022071332801	COW 411 (Coventry, RI)	58¹	22.50 - 21.40	11.25	-10.35	High
415626071254601	CUW 265 (Cumberland, RI)	75¹	15.20 - 12.80	6.61	-7.59	High
415710071402201	BUW 187 (Burrillville, RI)	52¹	16.70 - 8.75	7.93	-7.97	High
415948071325001	NSW 21 (North Smithfield, RI)	73¹	10.40 - 9.04	4.42	-5.50	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.