CURRENT WATER RESOURCES CONDITIONS IN CONNECTICUT

U.S. Department of the Interior Seal

June 2019

USGS New England Water Science Center, Connecticut Office

PROVISIONAL DATA: All data presented in this report are provisional and subject to revision.
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Monthly Surface Water Conditions MapMonthly 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
01118300 Pendleton Hill Brook near Clarks Falls, CT4.02602.73 - 7.57.662.13 Above normal
01121000 Mount Hope River near Warrenville, CT28.67817 - 50.322.30.87 Normal
01123000 Little River near Hanover, CT306723.9 - 49.241.61.55 Normal
01184100 Stony Brook near West Suffield, CT10.4385.42 - 30.66.490.70 Normal
01188000 Bunnell Brook near Burlington, CT4.1873.39 - 8.935.261.43 Normal
01193500 Salmon River near East Hampton, CT1009066.9 - 1551431.60 Normal
01194500 East Branch Eightmile River near North Lyme, CT22.38113.9 - 35.839.61.98 Above normal
01195100 Indian River near Clinton, CT5.68372.25 - 13.612.62.47 Normal
01196620 Mill River near Hamden, CT24.55019 - 66.243.31.97 Normal
01204000 Pomperaug River at Southbury, CT75.18646 - 12088.51.31 Normal
01208990 Saugatuck River near Redding, CT215411 - 35.528.21.50 Normal

 

GROUNDWATER
Station
Number
Station
Name
Years Of
Record
Normal
Range (ft)
Monthly
Median (ft)
Departure
From Monthly
Median (ft)
Percentile
Class
410628073413301 GW 21 (Greenwich, CT)171 27.10 - 23.3027.411.61 Below normal
412429073165101 NT 15 (Newtown, CT)511 6.29 - 4.284.05-1.69 Above normal
412825072410501 D 117 (Durham, CT)331 11.80 - 10.3010.56-0.34 Normal
412916073121701 SB 42 (Southbury, CT)251 15.00 - 13.6013.36-1.15 Above normal
413535072253701 MB 32 (Marlborough, CT)311 5.69 - 4.284.48-0.75 Normal
414240072033201 SC 22 (Scotland, CT)341 11.70 - 11.4011.580.07 Normal
414741072134501 MS 44 (Mansfield, CT)361 5.60 - 2.843.89-0.73 Normal
414831072173002 MS 80 (Mansfield, CT)171 15.60 - 13.4015.090.19 Normal
1 Daily Value Records and Field Readings
2 Daily Value Records Only

 

Flow or Water LevelPercentile RangeExplanation
Low0thThe 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 normal0th to 10thThe monthly mean streamflow or median water level during this month is less than the 10th percentile when compared to all of the months during the period of record for this site.
Below normal10th to 25thThe monthly mean streamflow or median water level during this month is between the 10th and 25th percentiles when compared to all of the months during the period of record for this site.
Normal25th to 75thThe monthly mean streamflow or median water level during this month is between the 25th and 75th percentiles when compared to all of the months during the period of record for this site.
Above normal75th to 90thThe monthly mean streamflow or median water level during this month is between the 75th and 90th percentiles when compared to all of the months during the period of record for this site.
Much above normal90th to 100thThe monthly mean streamflow or median water level during this month is greater than the 90th percentile when compared to all of the months during the period of record for this site.
High100thThe monthly mean streamflow or median water level during this month is the highest ever recorded during the period of record for this site.
410628073413301 GW 21 (Greenwich, CT), June 2019 mean water level 27.41 feet 412429073165101 NT 15 (Newtown, CT), June 2019 mean water level 4.045 feet 412825072410501 D 117 (Durham, CT), June 2019 mean water level 10.56 feet 412916073121701 SB 42 (Southbury, CT), June 2019 mean water level 13.355 feet 413535072253701 MB 32 (Marlborough, CT), June 2019 mean water level 4.475 feet 414240072033201 SC 22 (Scotland, CT), June 2019 mean water level 11.575 feet 414741072134501 MS 44 (Mansfield, CT), June 2019 mean water level 3.885 feet 414831072173002 MS 80 (Mansfield, CT), June 2019 mean water level 15.09 feet 01118300 Pendleton Hill Brook near Clarks Falls, CT, June 2019 mean streamflow 7.66 cfs 01121000 Mount Hope River near Warrenville, CT, June 2019 mean streamflow 22.3 cfs 01123000 Little River near Hanover, CT, June 2019 mean streamflow 41.6 cfs 01184100 Stony Brook near West Suffield, CT, June 2019 mean streamflow 6.49 cfs 01188000 Bunnell Brook near Burlington, CT, June 2019 mean streamflow 5.26 cfs 01193500 Salmon River near East Hampton, CT, June 2019 mean streamflow 143 cfs 01194500 East Branch Eightmile River near North Lyme, CT, June 2019 mean streamflow 39.6 cfs 01195100 Indian River near Clinton, CT, June 2019 mean streamflow 12.6 cfs 01196620 Mill River near Hamden, CT, June 2019 mean streamflow 43.3 cfs 01204000 Pomperaug River at Southbury, CT, June 2019 mean streamflow 88.5 cfs 01208990 Saugatuck River near Redding, CT, June 2019 mean streamflow 28.2 cfs