HOUSATONIC RIVER BASIN 01200600 HOUSATONIC RIVER NEAR NEW MILFORD, CT LOCATION.--Lat 41×35’35”, long 73×27’00”, Litchfield County, Hydrologic Unit 01100005, at Boardman Bridge, 2.3 mi northwest of New Milford, 6.9 mi downstream from Tenmile River, 1.9 mi upstream from Aspetuck River and 4.7 mi upstream from Still River. DRAINAGE AREA.--1,022 mi2. PERIOD OF RECORD.--Water years 1962, 1963, 1974 to 1991, 1995 to current year. WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 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 23... 1510 589 336 8.6 12.0 6.0 .73 13.7 111 K11 K1 JAN 22... 1410 3660 250 7.9 4.0 .5 6.9 15.1 104 220 5000 MAY 17... 1410 313 316 8.6 22.0 19.0 1.6 10.6 115 K16 K10 JUL 15... 1420 232 310 9.0 31.5 24.5 3.2 10.3 126 K24 K3 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 23... 140 34 13 13 2.0 14 135 135 12 19 <.10 JAN 22... 76 19 7.0 14 1.4 0 77 63 9.5 23 <.10 MAY 17... 130 33 12 13 1.5 4 135 117 11 21 <.10 JUL 15... 130 32 12 15 1.6 12 118 117 8.8 23 <.10 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 23... 1.2 189 191 .012 .311 <.020 -- .28 .23 .59 JAN 22... 4.4 131 149 .010 .409 .079 .32 .40 .27 .81 MAY 17... 1.5 196 177 <.010 .163 <.020 -- .35 .17 .51 JUL 15... 2.5 172 179 <.010 <.050 <.020 -- .61 .29 -- HOUSATONIC RIVER BASIN 01200600 HOUSATONIC RIVER NEAR NEW MILFORD, CT--Continued WATER-QUALITY DATA, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 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 23... <.050 <.050 <.010 2.4 <1.0 14 <1.0 <1.0 <1.0 <1.0 JAN 22... .070 .018 .014 9.1 <1.0 9.9 <1.0 <1.0 <1.0 <1.0 MAY 17... .025 .009 .012 6.3 <1.0 15 <1.0 <1.0 <1.0 <1.0 JUL 15... .035 .006 <.010 12 <1.0 14 <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 23... <1.0 77 <1.0 4.3 <1.0 <1.0 <1.0 <1.0 <1.0 3.4 JAN 22... <1.0 55 <1.0 10 <1.0 <1.0 <1.0 <1.0 <1.0 5.8 MAY 17... <1.0 18 <1.0 5.5 <1.0 <1.0 <1.0 <1.0 <1.0 4.2 JUL 15... 1.0 <10 <1.0 3.5 <1.0 <1.0 <1.0 <1.0 <1.0 5.6