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<br /> <br />T A B L E III (C O N T I N V E D) <br /> DRINILING <br />METAL(7) AQUATIC LIFE (1)(3)(6)(J) ACRICULTURE(2) WATER- <br /> SUPPLY(2) <br /> Acute --~-a<1.6748 [ln(herdness )]-2.1805) 100(8) 5p(E) <br />Lead 2 <br /> Chronic = e(1.417[ln(hardness)1-5.767) (30-day) (1-day) <br />Manganese Chronic 1,000(r) 200(8) ~ 50(dis)(F) <br /> (30-day) (30-day) <br /> Acute = 2.4 <br />Mercury Chronic = 0.1 i 2.0(E> <br /> FRV(fish) (6) = 0.01 (Total) i (1-day) <br /> Acute = 18(0.76 [ln(hardness)]•6.02) 1 200(8) <br />Nickel 2 , <br /> Chronic = e(0. 76 (ln(herdness)]•1.06) (30-day) <br />I <br /> Acute = 135 ~ ~ <br />Selenium 20(8.0) ~ 10(E) <br /> Chronic = 17 (30-day) i (30-day) <br /> Acute = 7~,(1.72(ln<hardness)7-6.52) i <br />Silver 2 <br /> i 50(E) <br /> Chronic = 8(7.72 (ln(hardness)7-9.06) (1-day) <br /> "(Trout) = e(1.72(ln(hardness )7.10.51) , <br />Thallium Chronic = 15(x) ~ 0.012 <br /> (30-day) <br /> Acute =e (1. 1027[ln(hardness )7.2.7088) <br />Uranium ~ <br /> Chronic = e(1.1021[ln(herdness )7 X2.2382 ~ <br /> Acute = 8(0.8473[ln(hardness)7+0.8604) 2000(8) ~ 5000(F) <br />Zinc <br /> Chronic = 8(0.8673 (ln(hardness )7.0.7616 (30-day) ~ (30-day) <br />NOTE: Capital letters in parentheses refer to references listed in Section 3.1.16(3); <br />Numbers in parentheses refer to Table IIZ footnotes. <br />- 50 - <br />