DATE Flow* As Cd Cr Cu Pb Hg Ni Se Ag Zn 12/7/89 647 <1 4.01 183.0 343.8 103.0 3.09 103.2 3.5 27.88 512 18/7/89 659 <1 2.95 143.0 257.1 37.7 4.19 82.4 1.33 18.87 482 24/7/89 591 <1 7.67 174.6 519.8 225.6 13.41 80.9 11.31 20.03 485 6/9/89 570 <1 3.20 219.4 1835. 220.2 1.46 83.1 4.53 20.46 471 3 12/9/89 571 <1 3.29 340.3 1126. 42.7 1.51 81.7 5.89 24.82 476 7 18/9/89 549 <1 2.00 217.0 893.0 98.0 2.00 110.0 2.00 18.00 359 24/9/89 579 125.3 2.12 181.7 297.9 45.7 1.26 47.5 133.7 27.85 936 6 30/9/89 574 69.5 4.02 330.8 388.4 72.6 7.97 90.3 79.13 92.6 592 6/10/89 572 51.5 7.12 158.2 210.0 80.1 1.56 77.9 84.56 48.29 810 12/10/89 582 40.8 2.83 135.9 353.8 65.4 2.45 119.9 68.08 5.95 439 18/10/89 550 214.0 3.26 185.1 322.4 50.4 1.04 74.3 259.1 13.25 437 2 24/10/89 560 201.5 5.00 182.4 333.8 50.7 2.16 95.4 244.1 17.07 521 2 30/10/89 535 32.9 42.75 1098. 3726. 831.7 0.72 471.1 62.09 27.86 4966 0 3 5/11/89 557 148.3 4.60 216.9 707.0 116.4 2.14 116.1 193.8 9.68 2920 1 11/11/89 542 4.0 0.82 110.5 165.2 30.5 1.50 36.0 2.22 4.64 224 17/11/89 618 5.8 4.70 238.3 401.8 74.7 1.29 107.9 8.81 15.89 808 23/11/89 574 4.5 4.25 245.2 460.4 60.3 3.64 125.4 4.01 21.95 457 29/11/89 566 2.0 4.09 117.9 221.4 49.1 3.51 33.6 2.59 19.27 224 5/12/89 780 2.1 0.76 103.3 111.4 31.8 1.00 39.7 0.10 7.41 209 11/12/89 686 1.5 0.04 56.5 103.0 10.7 0.49 27.4 0.52 1.85 88 17/12/89 601 24.0 48.59 1677. 4209. 762.7 3.64 853.0 108.9 108.7 4674 5 4 5 6 23/12/89 559 6.5 2.13 72.3 235.6 102.8 1.02 56.2 <1 12.68 761 29/12/89 494 10.3 7.54 222.6 440.7 54 3.42 152.7 <1 15.92 1982 4/1/90 546 6.0 2.15 69.3 188.0 57.4 1.66 32.5 <1 8.24 103 10/1/90 923 7.4 3.06 68.3 263.7 87.1 6.48 81.4 <1 12.53 227 16/1/90 587 9.0 4.06 87.1 366.1 83.2 1.87 55.6 <1 10.92 263 22/1/90 555 8.8 1.90 84.2 330.7 57.1 3.01 45.1 <1 13.46 255 28/1/90 533 14.4 1.21 58.9 215.1 55.2 7.38 36.2 <1 2.91 129 3/2/90 1239 4.4 1.40 49.0 184.0 42.5 1.7 46.5 <1 3.04 380 9/2/90 1003 2.6 1.80 68.0 197.0 68.5 0.90 36.5 <1 7.34 364 15/2/90 863 3.4 2.90 82.0 258.0 48.5 1.70 54.5 16.80 10.84 403 21/2/90 787 2.6 3.60 94.0 217.0 42.5 0.70 44.5 1.60 10.84 451 6/3/90 697 7.2 10.50 239.0 732.0 214.5 3.70 169.5 15.80 31.84 1396 average 644 31 6.1 228 625 120 2.8 111 40 21 842 median 574 6 3.3 158 331 60 1.9 81 3.5 16 458 T/yr (1) -- 6.4 1.3 47 132 26 0.6 23 8.3 4.3 177 T/yr (2) -- 1.3 0.7 33 69 13 0.4 17 0.7 3.3 96 *
Flow is in ML/day
(1) average of (concentration multiplied by flow on day of sampling) by 365 days. (2) multiplying median concentration by median flow of 574 ML/day by 365 days.
Information taken from Water Board, Malabar Sewage Treatment Plant SPCC Compliance Report, 17 Dec.1989-10 Mar.1990.
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