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7A Page 14 Gontaminant M�LorTT1 Poten�alhe�itheffecksfrom Co�►nons�u�cus;of ,': P�btt� �R;2 ' ex�osure above the MCL ` c�ntaminant�n rf�3niang wa�er .; Healfh Gael ' • Endrin 0.002 Liver robierru Residue of banned insecticide O.OD2 Epichlorohydrin 7T8 Increased cancer risk,and over a long period Discharge from industrial zeto • of time,stomach probiems chemical factories;an impuriiy o# some waier ireaiment chemicals � Ethylbenzene 0.7 LivEr or kidneys problems Discha�ge irom petroleum 0.7 refineries � Efhylene dibromide 0.00005 Probiems wlth liver,stomach,reproductive Discharge from petroleum zero s stem,or kidne s;increased risk ot cancer refineries Fluoride 4.0 Bone disease(pain ar�d tentlerness ot the Water additive which promotes 4.0 � bones);Children may get mottled teeth strorig teeth;arasion of natural deposits;tlischarge from fertilizer and aluminum factories Giardia lamblia i T3 Gastrcir�tESiiilal iilness{e.g.,diarrhea, Human and ani�nal fecaf waste zero vomitin ,cram s a GE osafe 0.7 Kidne roblems;re roductive diHicuities Runoif fram heroicide use 0.7 �., Haloacetic acids(HAAS) 0_060 Increased risk of cancer 8yproduct of drinking water nIa& disinfection • He tachlor 0.6Q04 Liver damape;increased risk of cancer Residue of banned termiticide zero • He tachior e oxide 0.0002 Liver dam e;increased risk of cancer Breakdown of he tachior zero Heterotrophic plate coun# TT3 NPC has no health effects;it is an analytic FIPC meazures a range of nta (HPC} method used to measure the variety of bacteria that are naturally present bacteria that are common in water.The lower in the environment the concentrafion of bacteria in drinking water,the betfer maintained fhe water s stem is. Hexachlorobenzene 0.001 Liver or kidney problems;reproductive Discharge from metai refinenes zero • difficulties;increased risk of cancer and agricultural chemical factories � Hexachlorocyclopeniadien 0.05 Kidney or stomach problems Discharge irom chemical 0.05 � e factories Lead TT7� lnfants and chikiren:Delays in physical or Corrosion of household plumbing zero Action mental developmenl;children couki show systems;erosion of natural • Level= slight deficits in attention span and(eaming deposits 0.015 abilities;Adults:Kidney problems;high blood ressure Legronella TT3 legionnaire's Disease,a type of pneumonia Found naturally in water, zero mulii lies in heatin s stems _ � lindane ___ _. _... 0.0602 _ Liver oc kidney poobiems Runoff!(eaching irom insecticide. .. _ O,flt102 used on catUe,lumbet, ardens Mercury{inorganlc) 0.002 Kidney damage Erosion of naturai deposits; 0.002 � discharge from refineries and faciories;runoff from�andfiils and �___ cro lands Methoxychlor fl,04 Reproductive difficulties Runo811eaching from insecticide 0.04 s � usad on fruits;vegetables,alialfia, livestack Nitrate(measured as 10 infants below the age af sa months who drink Runoff irom fertilizer use; 10 Nitrogen) water con€aining nitrate in excess of the MCL leaching from septic fanks, • could become seriously ili and,if untreated, sewage;erosion of natural may die.Symptoms include shortness of deposits breath and blue-bab s ndrome. Nitrite(measured as 1 Infants below the age of six months who drink Runaff from fertilizer use; 1 Nitrogen) water containing nitrite in excess of the MCL leaching from septic tanks, • could become seriously ill and,if untreated, sewage;erosion of naiural —� may die.Symptoms include shortness of deposits breath and blue-bab s ndrome. LEGENO C� DinsinfeclaM � Inorganic Chemical � Organic Chemical *=� Dlsinfectlon Byproduct � Microorganism � RadlonucBdes 3