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7A <br /> Page 12 <br /> ��,EPA National Primary Drinking IlVater Standards <br /> C�ntaminant '��L ac TT4 Pa#entta[h+sa:th eisetts.fro�n Cammon sou�s:uf Public_ <br /> ;! ,� L 2 ;: �xposure abovs#►e MGt son#�minarit.tn��tn�P�sg w�ter.. ;H�Ith Coal : <br /> Acrylamide TT8 Nervaus system or biood problems; Adtled to water during zero <br /> � sewagelwastewater increased <br /> risk of cancer treatment <br /> � Aiachlor 0.002 Eye,liver,kidney or spleen problems; Runoff from herbicide used on zero <br /> anemia;inaeased risk of cancer row cro s <br /> Alpha parlicles 15 picocuries Increased risk of cancer Erosion of natural depasits of zero^ <br /> per Liter ce�tain mineraEs thai are <br /> (pCi1L) radioactive and may emit a form <br /> of radialion known as aipha <br /> radiation <br /> Antimony 4.066 lncrea.se in biootl cholesterol;decrease in Disch�rge from petraeum 0.��6 <br /> • blood sugar refineries;fire retardants; <br /> ceramics;electronics;solder <br /> Arsenic 0.010 as of Skin d�age or probiems with circulatory Erosion of natural deposits;runoff 0 <br /> � 1i2'si06 sysiems,and may have increased risk of from orchards,runofffrom glass& <br /> ettin cancer electronics production wastes <br /> Asbesios{fibers>10 7 million Increased risk of developing benign intestinai Decay of asbestas cement in 7 MFL <br /> • micrometers) 6bers per polyps water mains;erosion of natura! <br /> Liter MFL de osits <br /> � Atrazine 0.003 Cardiovascular system or reprodactive Runoff#rom herbieide used on 0.003 <br /> roblems row cro s <br /> 8arium 2 Increase in blood pressure Discharge of drilling wastes; 2 <br /> • discharge from metal refineries; <br /> erosian of naturai deposlts <br /> Benzene 0.005 Anemia;decrease in 61ood platelets; Discharge from faciories; zero <br /> � increased risk of cancer leaching from gas storage tanks <br /> and landfilis <br /> Benzo(a)pyrene(PAHs} 0.0002 Reproductive difficulties;increased risk of Leaching irom linings of water zero <br /> • cancer storage tanks and distribution <br /> lines <br /> 8eryllium 0.004 Intestina!lesions Discharge from metal rafineries 0.604 <br /> and coa!-burning factories; <br /> � discharge from electrical, <br /> aerospace,and defense <br /> _ . . .. _ ._ _ <br /> _ __ . _ .. ___ __ _ <br /> --.�-•_____------._.._......_� intlusfries <br /> 6eta pa�icles and photon 4 millirems Increased risk af cancer � Decay of natural and man-made zero <br /> emitters per year deposits of ce�tain minerals that <br /> are radioactive and may emit <br /> forms of radiation known ss <br /> hotons and beta radiation <br /> �_. Bromate 0.010 Increased risk oi cancer Byproduct of drinking water zero <br /> disinfec6on <br /> Cadmium 0.005 Kidney damage Corrosion of galvanized pipes; 0.005 <br /> erosion o#natural deposits; <br /> • discharge from metal refineries; <br /> runoff from waste batteries and <br /> aints <br /> � Carbofuran �� � 0.04 Problems with blood,nervous system,or Leaching ot soil fumigani used on 0.04 <br /> re roductive s stem rice and alfalfa <br /> � Carbon tetrachloride 0.005 Liver problems;increased risk af cancer Discharge irom chemical piants� zero <br /> and olher indusfriai activities <br /> p Chloramines(as Cl2) MRDL=4.0� Eyelnase irritation;stomach discomfort, Water additive used to confrol MRDLG=4� <br /> anemia microbes <br /> LEGENO <br /> �� D'msinfectant � Ino�ganic Chemical � Organic Chemical <br /> ��• Dlsinlect6on Syproduct � Microo+ganism � Ratlbnuclfdes � <br />