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 1994 TO SEPTEMBER 1995 DIS- PH OXYGEN, COLI- ENTERO- CHARGE, SPE- WATER DIS- FORM, COCCI HARD- INST. CIFIC WHOLE SOLVED FECAL, ME,MF NESS CUBIC CON- FIELD TEMPER- TEMPER- TUR- OXYGEN, (PER- 0.45 WATER TOTAL FEET DUCT- (STAND- ATURE ATURE BID- DIS- CENT UM-MF TOTAL (MG/L DATE TIME PER ANCE ARD AIR WATER ITY SOLVED SATUR- (COLS./ (COL / AS SECOND (US/CM) UNITS) (DEG C) (DEG C) (NTU) (MG/L) ATION) 100 ML) 100 ML) CACO3) (00061) (00095) (00400) (00020) (00010) (00076) (00300) (00301) (31616) (31649) (00900) NOV 08... 1020 260 310 7.3 17.5 11.5 -- 9.4 86 11000 1400 52 JAN 09... 1020 1000 185 7.3 4.0 1.0 2.0 15.0 104 9200 2800 29 MAR 07... 1030 680 235 7.5 19.0 5.5 2.4 13.7 108 4000 920 39 MAY 08... 0935 395 250 7.4 18.0 18.0 -- 10.9 116 600 55 45 JUN 06... 1000 260 291 7.3 24.5 22.0 1.1 8.5 98 17000 1500 49 JUL 07... 1015 116 454 7.5 25.0 25.0 1.7 5.2 63 25000 3800 73 AUG 04... 0820 195 305 7.2 33.0 26.0 3.0 4.9 60 10000 500 49 SEP 15... 0915 115 591 7.1 24.0 21.0 3.0 6.9 77 17000 1100 81 CAR- BICAR- ALKA- SOLIDS, MAGNE- POTAS- BONATE BONATE LINITY CHLO- FLUO- SILICA, RESIDUE CALCIUM SIUM, SODIUM, SIUM, WATER WATER WAT DIS SULFATE RIDE, RIDE, DIS- AT 180 DIS- DIS- DIS- DIS- DIS IT DIS IT TOT IT DIS- DIS- DIS- SOLVED DEG. C SOLVED SOLVED SOLVED SOLVED FIELD FIELD FIELD SOLVED SOLVED SOLVED (MG/L DIS- DATE (MG/L (MG/L (MG/L (MG/L MG/L AS MG/L AS MG/L AS (MG/L (MG/L (MG/L AS SOLVED AS CA) AS MG) AS NA) AS K) CO3 HCO3 CACO3 AS SO4) AS CL) AS F) SIO2) (MG/L) (00915) (00925) (00930) (00935) (00452) (00453) (39086) (00945) (00940) (00950) (00955) (70300) NOV 08... 15 3.6 34 3.7 -- -- -- 26 50 0.20 7.4 180 JAN 09... 7.8 2.2 17 1.7 -- -- -- 13 25 <0.10 7.4 102 MAR 07... 11 2.8 24 2.0 0 26 23 8.5 22 <0.10 7.4 78 MAY 08... 13 3.1 27 2.8 0 26 21 22 42 0.20 5.2 141 JUN 06... 14 3.3 33 3.3 0 28 23 25 46 0.20 7.1 169 JUL 07... 22 4.3 52 6.3 0 24 20 35 84 0.50 4.7 253 AUG 04... 14 3.3 33 4.0 0 30 25 27 42 0.30 5.1 165 SEP 15... 24 5.2 70 8.0 0 41 34 58 97 0.50 6.3 317 HOUSATONIC RIVER BASIN 01208736 NAUGATUCK RIVER AT ANSONIA, CT--Continued WATER-QUALITY DATA, WATER YEAR OCTOBER 1994 TO SEPTEMBER 1995 NITRO- NITRO- NITRO- NITRO- NITRO- PHOS- SOLIDS, GEN, GEN, GEN, NITRO- GEN,AM- GEN,AM- PHOS- PHORUS ALUM- RESIDUE NITRITE NO2+NO3 AMMONIA GEN, MONIA + MONIA + NITRO- PHOS- PHORUS ORTHO, INUM, AT 105 DIS- DIS- DIS- ORGANIC ORGANIC ORGANIC GEN, PHORUS DIS- DIS- DIS- DEG. C, SOLVED SOLVED SOLVED TOTAL TOTAL DIS. TOTAL TOTAL SOLVED SOLVED SOLVED DATE TOTAL (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (MG/L (UG/L (MG/L) AS N) AS N) AS N) AS N) AS N) AS N) AS N) AS P) AS P) AS P) AS AL) (00500) (00613) (00631) (00608) (00605) (00625) (00623) (00600) (00665) (00666) (00671) (01106) NOV 08... 190 0.100 2.20 0.880 0.52 1.4 1.2 3.6 0.340 0.340 0.290 20 JAN 09... 106 0.010 0.580 0.570 0.23 0.80 0.90 1.4 0.090 0.080 0.070 40 MAR 07... 88 0.030 0.800 0.980 0.22 1.2 1.1 2.0 0.160 0.130 0.110 30 MAY 08... 150 0.080 1.50 0.560 0.44 1.0 0.90 2.5 0.230 0.190 0.180 20 JUN 06... 168 0.150 1.90 0.420 0.48 0.90 0.70 2.8 0.370 0.350 0.340 20 JUL 07... 278 0.120 3.30 0.840 0.76 1.6 1.5 4.9 0.630 0.650 0.610 10 AUG 04... 162 0.180 2.60 0.890 0.51 1.4 1.3 4.0 0.570 0.500 0.520 10 SEP 15... 322 0.470 5.10 0.300 2.4 2.7 2.3 7.8 1.10 0.900 0.860 9 CHRO- ANTI- BERYL- CADMIUM MIUM, CHRO- COPPER, IRON, MONY, BARIUM, LIUM, TOTAL CADMIUM TOTAL MIUM, COBALT, TOTAL COPPER, TOTAL IRON, DIS- DIS- DIS- RECOV- DIS- RECOV- DIS- DIS- RECOV- DIS- RECOV- DIS- SOLVED SOLVED SOLVED ERABLE SOLVED ERABLE SOLVED SOLVED ERABLE SOLVED ERABLE SOLVED DATE (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L AS SB) AS BA) AS BE) AS CD) AS CD) AS CR) AS CR) AS CO) AS CU) AS CU) AS FE) AS FE) (01095) (01005) (01010) (01027) (01025) (01034) (01030) (01035) (01042) (01040) (01045) (01046) NOV 08... <1 15 <1 <1 <1.0 1 <1 <1 16 14 400 200 JAN 09... <1 14 <1 -- <1.0 -- <1 <1 -- 6 -- 110 MAR 07... <1 16 <1 -- <1.0 -- <1 <1 -- 9 -- 110 MAY 08... <1 12 <1 -- <1.0 -- <1 <1 -- 14 -- 220 JUN 06... <1 11 <1 -- <1.0 -- <1 <1 -- 13 -- 240 JUL 07... <1 10 <1 -- <1.0 -- <1 <1 -- 21 -- 150 AUG 04... <1 10 <1 -- <1.0 -- <1 <1 -- 15 -- 130 SEP 15... <1 13 <1 -- <1.0 -- <1 <1 -- 17 -- 130 LEAD, MANGA- MOLYB- NICKEL, ZINC, URANIUM TOTAL LEAD, NESE, DENUM, TOTAL NICKEL, SILVER, TOTAL ZINC, NATURAL CARBON, RECOV- DIS- DIS- DIS- RECOV- DIS- DIS- RECOV- DIS- DIS- ORGANIC ERABLE SOLVED SOLVED SOLVED ERABLE SOLVED SOLVED ERABLE SOLVED SOLVED TOTAL DATE (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (MG/L AS PB) AS PB) AS MN) AS MO) AS NI) AS NI) AS AG) AS ZN) AS ZN) AS U) AS C) (01051) (01049) (01056) (01060) (01067) (01065) (01075) (01092) (01090) (22703) (00680) NOV 08... 2 <1 86 1 15 14 <1.0 40 28 <1.0 5.0 JAN 09... -- <1 59 <1 -- 4 <1.0 -- 24 <1.0 4.4 MAR 07... -- 1 88 <1 -- 7 <1.0 -- 27 <1.0 3.3 MAY 08... -- 2 80 1 -- 10 <1.0 -- 18 <1.0 4.3 JUN 06... -- 1 77 1 -- 6 <1.0 -- 15 <1.0 5.5 JUL 07... -- 1 36 4 -- 9 <1.0 -- 18 <1.0 6.8 AUG 04... -- 1 70 4 -- 11 <1.0 -- 20 <1.0 7.0 SEP 15... -- <1 250 5 -- 21 <1.0 -- 29 <1.0 9.8