HOUSATONIC RIVER BASIN 01208736 NAUGATUCK RIVER AT ANSONIA, CT LOCATION.--Lat 4119'50", long 7304'47", New Haven County, Hydrologic Unit 01100005, at bridge on Division Street, at Ansonia-Derby town line, and 1.2 mi upstream from Housatonic River. DRAINAGE AREA.--309 mi2. PERIOD OF RECORD.--Water years 1968, 1974, to current year. REMARKS.--Stream tidal affected. WATER-QUALITY DATA, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 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) NOV 15... 1030 860 197 7.3 7.0 5.0 1.9 12.4 94 88 240 JAN 13... 1000 490 294 7.5 -0.5 1.5 2.7 14.8 104 57000 5200 MAR 11... 1045 800 280 7.3 9.0 5.0 3.0 13.0 102 24000 6400 MAY 09... 0930 880 185 7.2 11.0 11.5 3.9 10.1 93 480 84 JUN 24... 0900 160 366 7.2 24.5 23.5 5.4 7.1 84 50000 3900 JUL 24... 0915 220 286 7.6 18.0 21.5 5.1 8.8 81 1400 54 AUG 20... 0840 230 238 7.4 20.0 21.0 8.8 7.2 81 11000 740 SEP 17... 0840 130 325 7.4 22.0 21.0 6.5 5.7 64 410000 29000 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) NOV 15... 34 9.5 2.4 20 2.5 0 27 22 18 29 .10 JAN 13... 45 13 3.0 33 2.7 0 28 23 21 51 .10 MAR 11... 34 9.6 2.4 34 2.1 0 22 18 17 52 .10 MAY 09... 33 9.4 2.3 20 1.8 0 23 19 16 28 <.10 JUN 24... 59 17 4.0 42 4.8 0 44 36 32 58 .35 JUL 24... 46 13 3.1 36 4.2 0 28 23 27 44 .28 AUG 20... 40 11 2.7 27 3.4 0 31 26 22 34 .20 SEP 17... 54 15 3.7 35 4.5 0 39 32 28 49 .37 HOUSATONIC RIVER BASIN 01208736 NAUGATUCK RIVER AT ANSONIA, CT--Continued WATER-QUALITY DATA, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 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) NOV 15... 8.3 113 116 .020 .850 .530 .47 1.0 .80 1.9 JAN 13... 8.6 151 170 .020 1.00 .960 .34 1.3 1.1 2.3 MAR 11... 6.1 143 154 .020 .770 .730 .37 1.1 1.0 1.9 MAY 09... 5.9 110 104 .034 .716 .582 .14 .73 .69 1.4 JUN 24... 8.3 210 254 .291 2.19 2.04 .86 2.9 2.7 5.1 JUL 24... 5.1 177 186 .122 1.87 .309 .62 .93 .62 2.8 AUG 20... 5.6 148 155 .070 1.58 .679 1.2 1.9 1.3 3.4 SEP 17... 4.8 183 195 .092 2.25 1.70 1.3 3.0 2.5 5.3 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) NOV 15... .350 .270 .260 31 <1.0 15 <1.0 <1.0 <1.0 <1.0 JAN 13... .160 .100 .110 24 <1.0 19 <1.0 <1.0 <1.0 <1.0 MAR 11... .240 .220 .220 24 <1.0 15 <1.0 <1.0 <1.0 <1.0 MAY 09... .235 .234 .255 21 <1.0 15 <1.0 <1.0 <1.0 <1.0 JUN 24... .749 .648 .590 12 <1.0 14 <1.0 <1.0 <1.0 <1.0 JUL 24... .543 .485 .431 18 <1.0 12 <1.0 <1.0 <1.0 <1.0 AUG 20... .620 .447 .386 16 <1.0 12 <1.0 <1.0 <1.0 <1.0 SEP 17... .681 .571 .528 18 <1.0 11 <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) NOV 15... 8.0 130 <1.0 64 <1.0 4.0 <1.0 31 <1.0 3.6 JAN 13... 12 130 <1.0 112 <1.0 7.0 <1.0 37 <1.0 2.7 MAR 11... 8.0 90 <1.0 75 <1.0 8.0 <1.0 34 <1.0 4.5 MAY 09... 8.0 130 <1.0 70 <1.0 5.0 <1.0 23 <1.0 3.3 JUN 24... 16 180 <1.0 176 3.2 9.2 <1.0 20 <1.0 6.6 JUL 24... 15 180 <1.0 59 2.0 6.5 <1.0 15 <1.0 5.9 AUG 20... 10 180 1.0 100 1.8 5.2 <1.0 12 <1.0 5.9 SEP 17... 16 140 <1.0 88 2.1 7.0 <1.0 16 <1.0 6.5