QUINNIPIAC RIVER BASIN 01196500 QUINNIPIAC RIVER AT WALLINGFORD, CT--Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water years 1953-54, 1957, 1968 to current year. PERIOD OF DAILY RECORD.-- SPECIFIC CONDUCTANCE: November 1969 to December 1970. WATER TEMPERATURES: November 1969 to December 1970. REMARKS.--Records of iron, specific conductance, and pH of daily samples for 1956-57 are available in Connecticut office at Hartford, Conn. EXTREMES FOR PERIOD OF RECORD.-- SPECIFIC CONDUCTANCE: Maximum recorded, 530 microsiemens July 16, 1970; minimum recorded, 47 microsiemens July 4, 1970. WATER TEMPERATURES: Maximum, 31.0C July 28, 1970; minimum, 0.0C on many days during winter periods. 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) OCT 26... 1050 108 341 7.1 20.0 11.5 1.4 10.3 94 250 54 110 DEC 09... 1155 223 280 7.9 8.0 4.5 1.6 13.1 100 130 124 84 FEB 08... 1215 166 392 7.8 3.0 1.0 3.5 14.4 102 22000 400 110 APR 07... 1040 134 368 7.9 19.0 8.0 0.90 12.7 108 40000 3200 110 JUN 05... 1030 98 343 7.4 24.5 20.0 1.8 8.0 88 280 84 110 JUL 18... 1015 159 325 7.6 30.0 22.5 5.7 7.4 86 9000 4700 98 AUG 03... 0930 83 325 7.6 24.0 25.0 5.1 6.3 76 5200 900 97 SEP 13... 0950 36 422 7.5 23.0 18.5 2.3 7.8 83 5100 420 130 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) OCT 26... 34 6.0 22 3.5 0 98 80 17 37 0.20 12 203 DEC 09... 26 4.7 17 2.1 0 70 57 15 30 0.10 12 158 FEB 08... 34 5.8 24 2.1 0 90 74 16 43 0.10 13 200 APR 07... 34 5.9 23 2.5 0 104 85 -- -- <0.10 9.8 -- JUN 05... 34 5.8 23 3.2 0 97 80 17 35 0.20 13 199 JUL 18... 31 5.0 22 3.5 0 79 65 17 33 0.20 9.7 188 AUG 03... 30 5.4 23 3.8 0 76 62 22 34 0.20 9.5 188 SEP 13... 39 6.9 31 5.5 0 101 83 26 49 0.50 9.9 246 QUINNIPIAC RIVER BASIN 01196500 QUINNIPIAC RIVER AT WALLINGFORD, 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) OCT 26... 212 0.030 3.30 0.060 0.34 0.40 0.40 3.7 0.440 0.410 0.400 30 DEC 09... 170 0.030 2.00 0.090 0.21 0.30 0.30 2.3 0.160 0.160 0.150 30 FEB 08... 208 0.080 2.80 0.600 0.20 0.80 0.70 3.6 0.220 0.220 0.220 20 APR 07... 202 0.120 2.30 1.30 0.30 1.6 1.6 3.9 0.370 0.340 0.340 30 JUN 05... 242 0.120 3.00 0.350 0.35 0.70 0.70 3.7 0.370 0.320 0.340 30 JUL 18... 248 0.060 3.70 0.110 0.69 0.80 0.50 4.5 0.630 0.510 0.510 10 AUG 03... 208 0.090 3.80 0.150 0.65 0.80 0.60 4.6 0.750 0.660 0.660 20 SEP 13... 260 0.060 6.60 0.090 0.61 0.70 0.60 7.3 1.20 1.10 1.00 30 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) OCT 26... <1 100 <1 <1 <1.0 1 <1 <1 4 4 260 140 DEC 09... <1 74 <1 <1 <1.0 1 <1 <1 5 3 390 180 FEB 08... <1 92 <1 -- <1.0 -- <1 <1 -- 3 -- 100 APR 07... 2 100 <1 -- <1.0 -- <1 <1 -- 3 -- 160 JUN 05... 1 96 <1 -- <1.0 -- 80 <1 -- 5 -- 130 JUL 18... <1 84 <1 -- <1.0 -- 1 <1 -- 6 -- 74 AUG 03... <1 80 <1 -- <1.0 -- <1 2 -- 7 -- 68 SEP 13... <1 87 <1 -- <1.0 -- 2 <1 -- 7 -- 42 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) OCT 26... 1 <1 60 2 8 8 <1.0 20 13 <1.0 3.9 DEC 09... 1 <1 62 <1 6 6 <1.0 20 12 <1.0 3.8 FEB 08... -- <1 130 <1 -- 6 <1.0 -- 17 <1.0 3.9 APR 07... -- 1 150 1 -- 7 <1.0 -- 12 <1.0 4.3 JUN 05... -- <1 120 4 -- 10 <1.0 -- 7 <1.0 5.0 JUL 18... -- 1 54 4 -- 4 <1.0 -- 7 <1.0 7.6 AUG 03... -- 2 69 9 -- 9 <1.0 -- 14 <1.0 7.2 SEP 13... -- <1 91 5 -- 27 <1.0 -- 12 <1.0 5.2