220 Rooster River Basin 01208873 Rooster River at Fairfield, Ct
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220 ROOSTER RIVER BASIN 01208873 ROOSTER RIVER AT FAIRFIELD, CT LOCATION.--Lat 41° 10'47", long 73° 13'10", Fairfield County, Hydrologic Unit 01100006, on left bank, on floodwall, at corner of Renwick Drive and Renwick Place, Bridgeport. DRAINAGE AREA.--10.6 mi2. PERIOD OF RECORD.--October 1977 to current year. GAGE.--Water-stage recorder. Datum of gage is 5.44 ft above sea level. Prior to June 22, 1988, at site 1,300 ft downstream at datum 3.06 ft lower. REMARKS.--Records good except those for periods of estimated record, which are fair. Prior to June 22, 1988, stage sometimes affected by tide. EXTREMES FOR CURRENT YEAR.--Maximum discharge, 1,130 ft3/s, June 29, gage height, 8.59 ft; minimum discharge, 1.2 ft3/s, Aug. 3, Sept. 17, 30, gage height, 2.87 ft. DISCHARGE, CUBIC FEET PER SECOND WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 14 4.5 86 e6.0 e6.5 11 24 26 6.3 7.6 1.9 2.3 2 12 4.5 22 e5.7 e6.0 9.9 137 24 6.1 6.2 1.6 2.3 3 11 5.7 17 18 e5.5 9.3 58 19 6.0 5.0 1.4 2.3 4 9.9 28 15 37 14 8.7 34 15 7.1 4.6 1.4 2.3 5 8.9 14 14 16 12 8.6 29 14 5.9 4.3 1.9 2.3 6 8.3 6.6 13 26 11 8.5 25 13 5.7 4.2 1.4 2.3 7 7.9 6.1 25 20 11 10 24 14 5.7 4.0 1.4 1.9 8 7.4 6.0 24 64 11 20 41 13 5.5 107 1.3 1.7 9 7.3 5.5 16 26 11 13 22 12 5.1 15 1.3 1.7 10 6.9 5.8 36 21 19 10 20 11 5.0 7.6 1.3 1.7 11 6.5 6.0 21 20 13 10 18 11 4.8 6.1 1.3 1.7 12 6.3 20 16 30 11 14 16 11 4.8 5.3 8.2 1.7 13 6.1 19 15 29 11 10 15 10 4.5 5.1 2.5 1.8 14 6.0 7.5 14 84 48 9.7 14 9.6 4.5 4.8 41 1.7 15 30 6.8 e12.5 34 66 10 13 9.3 4.3 4.5 15 48 16 11 6.5 e12 26 25 10 13 8.8 13 4.1 2.4 3.6 17 5.9 6.3 e11.5 23 18 10 13 8.5 5.6 4.3 2.0 58 18 5.2 6.3 e11 19 16 10 12 8.1 3.8 4.2 1.6 4.9 19 29 6.0 e10.5 18 13 10 12 8.0 3.6 3.7 1.5 1.9 20 7.7 8.1 e10 e15.5 12 10 11 7.7 3.5 3.5 1.4 1.7 21 6.2 12 e9.5 e15 13 10 11 12 3.5 3.3 1.4 1.5 22 5.5 6.2 e9.0 e14 14 9.7 10 17 22 3.2 1.4 1.4 23 5.3 5.8 42 e13 14 10 47 8.8 4.3 3.1 1.4 1.4 24 5.1 19 19 e12 12 20 41 11 3.5 3.1 1.4 1.4 25 5.1 26 12 e11 12 13 15 17 3.3 2.7 1.3 1.4 26 4.9 9.2 e10 e10 11 12 13 9.2 3.2 2.6 1.3 6.3 27 4.8 7.5 e9.0 e9.0 9.9 11 41 8.8 3.3 14 1.3 3.3 28 4.6 61 e8.5 e8.5 9.7 158 49 7.7 65 3.3 1.3 1.3 29 4.5 15 e8.0 e8.0 --- 71 18 21 120 2.1 1.4 2.1 30 4.5 11 e7.0 e7.5 --- 32 26 8.8 16 2.0 2.5 1.3 31 4.8 --- e6.5 e7.0 --- 26 --- 6.6 --- 1.9 2.2 --- TOTAL 262.6 351.9 542.0 653.2 435.6 585.4 822 380.9 354.9 252.4 108.7 167.2 MEAN 8.47 11.7 17.5 21.1 15.6 18.9 27.4 12.3 11.8 8.14 3.51 5.57 MAX 30 61 86 84 66 158 137 26 120 107 41 58 MIN 4.5 4.5 6.5 5.7 5.5 8.5 10 6.6 3.2 1.9 1.3 1.3 CFSM 0.80 1.11 1.65 1.99 1.47 1.78 2.58 1.16 1.12 0.77 0.33 0.53 IN. 0.92 1.23 1.90 2.29 1.53 2.05 2.88 1.34 1.25 0.89 0.38 0.59 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1977 - 2005, BY WATER YEAR (WY) MEAN 10.9 15.1 17.4 19.9 17.2 23.0 24.0 19.7 15.4 9.08 10.5 10.2 MAX 34.1 34.0 42.1 74.1 34.1 45.0 75.1 71.2 65.1 23.1 31.9 23.9 (WY) (1990) (1989) (1997) (1979) (1979) (1983) (1983) (1989) (1982) (1984) (1992) (2000) MIN 3.42 3.50 2.25 3.68 4.57 8.78 6.08 6.28 3.73 2.30 1.38 3.04 (WY) (2002) (2002) (1999) (1981) (2002) (1985) (1985) (1986) (1999) (1999) (1981) (1986) e Estimated ROOSTER RIVER BASIN 221 01208873 ROOSTER RIVER AT FAIRFIELD, CT—Continued SUMMARY STATISTICS FOR 2004 CALENDAR YEAR FOR 2005 WATER YEAR WATER YEARS 1977 - 2005 ANNUAL TOTAL 5,676.6 4,916.8 ANNUAL MEAN 15.5 13.5 16.0 HIGHEST ANNUAL MEAN 24.3 1978 LOWEST ANNUAL MEAN 7.26 1985 HIGHEST DAILY MEAN 278 Apr 13 158 Mar 28 858 Jan 21, 1979 LOWEST DAILY MEAN 2.7 Jul 2 a1.3 Aug 8 0.53 Sep 13, 1980 ANNUAL SEVEN-DAY MINIMUM 3.8 Jun 28 1.3 Aug 22 0.74 Sep 9, 1980 MAXIMUM PEAK FLOW 1,130 Jun 29 2,170 Apr 9, 1980 MAXIMUM PEAK STAGE 8.59 Jun 29 11.65 Apr 9, 1980 INSTANTANEOUS LOW FLOW 1.2 Aug 3 0.16 Oct 2, 1980 ANNUAL RUNOFF (CFSM) 1.46 1.27 1.51 ANNUAL RUNOFF (INCHES) 19.92 17.26 20.54 10 PERCENT EXCEEDS 27 26 30 50 PERCENT EXCEEDS 8.9 9.2 9.4 90 PERCENT EXCEEDS 4.5 1.9 2.6 a Also occurred on many days. 1,000 500 200 100 50 20 DISCHARGE, 10 IN CUBIC FEET PER SECOND 5 2 1 O N D J F M A M J J A S 2004 2005 222 MILL RIVER BASIN 01208925 MILL RIVER NEAR FAIRFIELD, CT LOCATION.--Lat 41° 09'55", long 73° 16'14", Fairfield County, Hydrologic Unit 01100006, on right bank just downstream from bridge on Duck Farm Rd., 1.5 mi north of Fairfield, 18.3 mi downstream from headwater of Aspetuck River, 14.0 mi downstream from headwater of Mill River, and 2.3 mi upstream from mouth at Southport Harbor. DRAINAGE AREA.--28.6 mi2. PERIOD OF RECORD.--October 1972 to current year. REVISED RECORDS.--WDR CT-80-1: 1973-74, 1976-79 (P). WDR CT-83-1: Drainage area. GAGE.--Water-stage recorder. Datum of gage is 15.89 ft above sea level. REMARKS.--Records good, except those for periods of estimated record, which are fair. Flow completely regulated by Easton, Hemlock, and Samp Mortar Reservoirs, usable capacity 609,900,000 ft3, diversions into Hemlock Reservoir from Aspetuck Reservoir in the Aspetuck River Basin and by diversions from Hemlock and Easton Reservoirs for water supply of the cities of Bridgeport and Fairfield. EXTREMES FOR CURRENT YEAR.--Maximum discharge, 433 ft3/s, Mar. 29, gage height, 4.05 ft; minimum discharge, 3.3 ft3/s, Nov. 6, 7, 8, gage height, 0.96 ft. DISCHARGE, CUBIC FEET PER SECOND WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 34 18 75 e32 28 36 97 99 13 22 5.5 4.8 2 29 17 51 31 27 35 197 83 13 18 5.4 4.2 3 26 21 34 30 25 32 313 78 12 14 5.1 4.1 4 23 37 28 60 28 29 229 67 13 13 4.8 3.9 5 20 52 26 e51 28 28 154 59 12 12 5.4 3.7 6 18 6.5 24 e53 28 26 117 54 12 12 4.8 3.9 7 18 3.3 28 e53 28 27 98 56 11 11 4.5 3.9 8 17 3.7 39 86 28 40 117 54 11 58 4.7 4.1 9 16 11 28 96 30 43 96 45 10 37 4.8 4.0 10 16 11 38 80 39 40 78 41 10 19 4.7 3.7 11 14 12 38 72 41 e34 67 39 9.8 15 4.6 3.7 12 14 17 32 77 35 e29 60 41 9.6 13 6.0 3.8 13 15 29 30 76 31 e30 54 32 9.1 12 9.0 3.9 14 14 17 e29 153 38 e27 50 29 8.7 14 15 4.0 15 20 15 e27 187 197 e25 47 28 8.1 11 31 30 16 28 12 e24 139 171 e28 43 27 10 9.9 8.4 12 17 18 10 e23 112 117 e29 41 26 12 10 6.5 18 18 16 9.4 e19 86 85 29 39 24 9.2 10 5.4 12 19 32 8.9 e18 64 64 29 36 22 8.3 9.6 5.3 6.2 20 22 8.3 e19 60 53 30 34 18 8.2 8.6 5.4 5.4 21 19 12 e19 55 54 31 37 18 7.9 7.8 5.5 4.9 22 18 10 e23 49 50 31 30 24 9.5 7.4 5.1 4.4 23 17 8.7 e27 e47 43 32 48 20 9.6 6.9 4.5 4.4 24 27 12 71 44 41 41 115 20 8.1 6.2 4.5 4.0 25 18 30 63 e40 41 41 101 29 7.8 6.5 4.3 3.8 26 21 20 54 e38 38 41 75 29 7.4 6.1 4.3 4.4 27 20 13 e48 e36 36 38 76 20 7.7 7.7 4.3 6.2 28 19 40 34 34 33 133 149 18 35 9.3 4.5 4.0 29 19 35 e28 32 --- 306 98 18 67 6.5 4.6 4.2 30 18 19 e30 31 --- 181 83 21 48 5.9 5.2 4.2 31 18 --- e29 29 --- 121 --- 14 --- 5.6 5.4 --- TOTAL 624 518.8 1,056 2,033 1,457 1,622 2,779 1,153 418.0 405.0 198.5 183.8 MEAN 20.1 17.3 34.1 65.6 52.0 52.3 92.6 37.2 13.9 13.1 6.40 6.13 MAX 34 52 75 187 197 306 313 99 67 58 31 30 MIN 14 3.3 18 29 25 25 30 14 7.4 5.6 4.3 3.7 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1973 - 2005, BY WATER YEAR (WY) MEAN 18.1 27.7 44.1 47.1 44.8 70.4 78.4 51.2 32.9 14.9 14.2 14.5 MAX 64.1 80.3 165 176 103 168 276 216 195 71.7 63.6 42.2 (WY) (1997) (1997) (1997) (1979) (1973) (1983) (1983) (1989) (1982) (1984) (1992) (1994) MIN 2.98 8.00 7.04 3.13 6.62 15.1 12.1 10.2 2.74 0.93 1.72 2.16 (WY) (1985) (1999) (1983) (1981) (2002) (2002) (1985) (1986) (1987) (1987) (1987) (1983) e Estimated MILL RIVER BASIN 223 01208925 MILL RIVER NEAR FAIRFIELD, CT—Continued SUMMARY STATISTICS FOR 2004 CALENDAR YEAR FOR 2005 WATER YEAR WATER YEARS 1973 - 2005 ANNUAL TOTAL 13,890.1 12,448.1 ANNUAL MEAN 38.0 34.1 38.1 HIGHEST ANNUAL MEAN 62.4 1984 LOWEST ANNUAL MEAN 12.0 1985 HIGHEST DAILY MEAN 545 Apr 14 313 Apr 3 1,300 Jun 6, 1982 LOWEST DAILY MEAN 3.3 Nov 7 3.3 Nov 7 0.00 Nov 7, 1979 ANNUAL SEVEN-DAY MINIMUM 8.8 Jun 28 3.9 Sep 5 0.71 Jul 16, 1987 MAXIMUM PEAK FLOW 433 Mar 29 1,800 Apr 10, 1980 MAXIMUM PEAK STAGE 4.05 Mar 29 7.15 Apr 10, 1980 INSTANTANEOUS LOW FLOW 3.3 Nov 6 0.00 Nov 7, 1979 10 PERCENT EXCEEDS 77 76 85 50 PERCENT EXCEEDS 25 24 21 90 PERCENT EXCEEDS 10 4.8 4.1 1,000 500 200 100 50 20 DISCHARGE, 10 IN CUBIC FEET PER SECOND 5 2 1 O N D J F M A M J J A S 2004 2005 224 SASCO BROOK BASIN 01208950 SASCO BROOK NEAR SOUTHPORT, CT LOCATION.--Lat 41° 09'10", long 73° 18'23", Fairfield County, Hydrologic Unit 01100006, on left downstream abutment of bridge on Hulls Farm Rd., 1.5 mi northwest of Southport.