CONNECTICUT RIVER BASIN 01192050 HOCKANUM RIVER NEAR ROCKVILLE, CT LOCATION.--Lat 4151'57", long 7229'12", Hartford County, Hydrologic Unit 01080203, at bridge on State Highway 74 near Rockville. DRAINAGE AREA.--25.5 mi2. PERIOD OF RECORD.--August 1968, March 1995 to current year. WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DIS- PH OXYGEN, COLI- ENTERO- CHARGE, SPE- WATER DIS- FORM, COCCI INST. CIFIC WHOLE SOLVED FECAL, ME,MF CUBIC CON- FIELD TEMPER- TEMPER- TUR- OXYGEN, (PER- 0.45 WATER FEET DUCT- (STAND- ATURE ATURE BID- DIS- CENT UM-MF TOTAL DATE TIME PER ANCE ARD AIR WATER ITY SOLVED SATUR- (COLS./ (COL / SECOND (US/CM) UNITS) (DEG C) (DEG C) (NTU) (MG/L) ATION) 100 ML) 100 ML) (00061) (00095) (00400) (00020) (00010) (00076) (00300) (00301) (31616) (31649) OCT 14... 0845 7.3 191 7.3 16.5 12.5 1.9 8.4 79 140 80 DEC 05... 0920 19 231 7.0 4.0 4.5 2.2 8.6 69 130 40 FEB 18... 0940 78 112 7.0 5.0 2.5 15 12.0 90 1000 2400 APR 13... 1245 62 131 7.2 20.0 13.0 2.3 10.0 95 20 K3 JUN 22... 1310 35 124 7.0 26.5 21.0 4.1 8.3 93 230 84 JUL 10... 1400 45 119 7.0 27.5 21.5 2.3 7.8 90 240 104 AUG 07... 0900 15 150 7.1 31.5 20.5 2.9 7.0 78 100 4200 SEP 17... 0840 8.8 187 7.2 19.5 17.0 2.6 7.3 75 520 69 CAR- BICAR- ALKA- HARD- MAGNE- POTAS- BONATE BONATE LINITY CHLO- FLUO- NESS CALCIUM SIUM, SODIUM, SIUM, WATER WATER WAT DIS SULFATE RIDE, RIDE, TOTAL DIS- DIS- DIS- DIS- DIS IT DIS IT TOT IT DIS- DIS- DIS- (MG/L SOLVED SOLVED SOLVED SOLVED FIELD FIELD FIELD SOLVED SOLVED SOLVED DATE AS (MG/L (MG/L (MG/L (MG/L MG/L AS MG/L AS MG/L AS (MG/L (MG/L (MG/L CACO3) AS CA) AS MG) AS NA) AS K) CO3 HCO3 CACO3 AS SO4) AS CL) AS F) (00900) (00915) (00925) (00930) (00935) (00452) (00453) (39086) (00945) (00940) (00950) OCT 14... 59 17 3.9 11 1.7 0 33 27 18 22 <.10 DEC 05... 73 20 5.5 13 3.3 0 50 41 21 25 <.10 FEB 18... 25 6.7 1.9 9.5 1.5 0 17 14 8.5 15 <.10 APR 13... 36 9.7 2.8 11 1.8 0 23 19 11 17 <.10 JUN 22... 35 9.6 2.7 10 1.5 0 23 19 9.6 16 .11 JUL 10... 34 9.3 2.7 9.7 1.4 0 21 17 9.2 16 <.10 AUG 07... 44 12 3.2 11 1.6 0 26 21 12 18 <.10 SEP 17... 56 16 4.0 12 1.8 0 34 28 18 21 <.10 CONNECTICUT RIVER BASIN 01192050 HOCKANUM RIVER NEAR ROCKVILLE, CT--Continued WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 SOLIDS, NITRO- NITRO- NITRO- NITRO- NITRO- SILICA, RESIDUE SOLIDS, GEN, GEN, GEN, NITRO- GEN,AM- GEN,AM- DIS- AT 180 RESIDUE NITRITE NO2+NO3 AMMONIA GEN, MONIA + MONIA + NITRO- SOLVED DEG. C AT 105 DIS- DIS- DIS- ORGANIC ORGANIC ORGANIC GEN, (MG/L DIS- DEG. C, SOLVED SOLVED SOLVED TOTAL TOTAL DIS. TOTAL DATE AS SOLVED TOTAL (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L SIO2) (MG/L) (MG/L) AS N) AS N) AS N) AS N) AS N) AS N) AS N) (00955) (70300) (00500) (00613) (00631) (00608) (00605) (00625) (00623) (00600) OCT 14... 5.9 111 112 <.010 .964 <.015 -- .21 <.20 1.2 DEC 05... 9.2 145 148 .122 1.44 .167 .36 .53 .45 2.0 FEB 18... 3.9 69 80 <.010 .524 .126 .39 .52 .33 1.0 APR 13... 4.2 80 87 .019 .671 .068 .30 .37 .28 1.0 JUN 22... 5.1 89 91 .025 .429 .146 .31 .46 .40 .88 JUL 10... 5.7 83 84 .016 .506 .094 .30 .40 .34 .90 AUG 07... 5.5 90 89 .016 .852 .042 .29 .34 .27 1.2 SEP 17... 6.2 106 115 .019 1.12 .056 .21 .26 .21 1.4 PHOS- PHOS- PHORUS ALUM- ANTI- BERYL- CHRO- PHOS- PHORUS ORTHO, INUM, MONY, BARIUM, LIUM, CADMIUM MIUM, COBALT, PHORUS DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- TOTAL SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED DATE (MG/L (MG/L (MG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS P) AS P) AS P) AS AL) AS SB) AS BA) AS BE) AS CD) AS CR) AS CO) (00665) (00666) (00671) (01106) (01095) (01005) (01010) (01025) (01030) (01035) OCT 14... .062 .030 .024 4.4 <1.0 40 <1.0 <1.0 <1.0 <1.0 DEC 05... .107 .069 .062 11 <1.0 50 <1.0 <1.0 <1.0 <1.0 FEB 18... .123 .073 .072 20 <1.0 20 <1.0 <1.0 <1.0 <1.0 APR 13... .079 .048 .053 20 <1.0 25 <1.0 <1.0 <1.0 <1.0 JUN 22... .129 .065 .074 14 <1.0 27 <1.0 <1.0 <1.0 <1.0 JUL 10... .071 .043 .059 20 <1.0 26 <1.0 <1.0 <1.0 <1.0 AUG 07... .048 .041 .024 11 <1.0 34 <1.0 <1.0 <1.0 <1.0 SEP 17... .054 .033 .030 7.1 <1.0 41 <1.0 <1.0 <1.0 <1.0 MANGA- MOLYB- URANIUM COPPER, IRON, LEAD, NESE, DENUM, NICKEL, SILVER, ZINC, NATURAL CARBON, DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- ORGANIC SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED TOTAL DATE (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (MG/L AS CU) AS FE) AS PB) AS MN) AS MO) AS NI) AS AG) AS ZN) AS U) AS C) (01040) (01046) (01049) (01056) (01060) (01065) (01075) (01090) (22703) (00680) OCT 14... 2.5 43 <1.0 79 <1.0 <1.0 <1.0 2.3 <1.0 2.8 DEC 05... 2.8 170 <1.0 110 <1.0 <1.0 <1.0 4.1 <1.0 4.6 FEB 18... 3.1 80 <1.0 28 <1.0 <1.0 <1.0 5.8 <1.0 4.9 APR 13... 2.3 150 <1.0 38 <1.0 <1.0 <1.0 1.4 <1.0 5.4 JUN 22... 6.4 320 <1.0 182 <1.0 <1.0 <1.0 2.4 <1.0 5.9 JUL 10... 4.6 260 <1.0 104 <1.0 <1.0 <1.0 2.0 <1.0 5.8 AUG 07... 3.9 80 <1.0 67 <1.0 <1.0 <1.0 1.9 <1.0 4.3 SEP 17... 2.8 31 <1.0 63 <1.0 <1.0 <1.0 2.1 <1.0 3.3