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- Sierra Foothill Laboratory
<br /> Fact Sheet - Health Concerns in Water
<br /> The California Department of Health Services has established Primary Drinking Water Standards,
<br /> enforceable standards based on health concerns. The following table lists some of the many contaminants
<br /> listed. (Source: EPA 810-F-94-002)
<br /> EXPOSURE WHICH CAN COME FROM. ABOVE C,4N CAUSE:
<br /> TO: THIS
<br /> LEVEL:
<br /> Coliform Human and animal fecal waste zero Indicates gastroenteric pathogens
<br /> Bacteria that can cause dysentery, hepatitis,
<br /> typhoid._ cholera
<br /> Antimony Fire retardants, ceramics, electronics, 6 ug/L Cancer
<br /> fireworks, solder
<br /> Barium Natural deposits,pigments, epoxy sealants, 1000 ug/L Circulatory effects
<br /> spent coal
<br /> Beryllium Electrical, aerospace, defense industries 4 u Bone lung dam e
<br /> Cadmium Galvanized pipe corrosion; natural 5 ug/L Kidney effects
<br /> deposits; batteries, paints
<br /> Chromium Natural deposits; mining, electroplating, 50 ug/L Liver, kidney, circulatory disorders
<br /> pigments
<br /> Copper Natural, industrial deposits; wood *1.3 mg/L Gastrointestinal irritation
<br /> preservatives, plumbing
<br /> Cyanide Electroplating, steel, plastics, miming, 0.2 mg/L Thyroid, nervous system damage
<br /> fertilizer
<br /> Lead Nature, plumbing, solder, brass fixtures *15 u Kidney, nervous system damage
<br /> Mercury Nature, batteries electrical switches 2 u Kidne ,nervous system disorders
<br /> Nickel Metal alloys, electroplating, batteries, 100 ug/L Heart, liver damage
<br /> chemical Production
<br /> Nitrate as Animal waste, fertilizer, nature, septic 10 mg/L Methemoglobinemia (blue baby
<br /> Nitrogen tanks, sewage syndrome)
<br /> Nitrite as Animal waste, fertilizer, nature, septic 1 mg/L Methemoglobinemia(blue baby
<br /> Nitrogen tanks, sewage syndrome)
<br /> Selenium Nature, mining, smelting 50 u Liver damage
<br /> Silver Geological, mining 100 u Skin discoloration (argyria)
<br /> Thallium Electronics drugs, alloys, glass 12 u -Kidney, liver, brain, intestinal
<br /> Arsenic Nature, smelting, industrial wastes, 50 ug/L Skin, nervous system toxicity
<br /> pesticide residues
<br /> * Indicates level at which treatment techniques are required.
<br /> mg/L = milligrams per liter or parts per million
<br /> ug/L = micrograms per liter or parts per billion
<br /> FAQ-BEAL.DOC Page- 1
<br /> 255 Scottsville Blvd. • PO Box 1268 •Jackson, CA 95642 • 209.223.2800 • Fax 223.2747
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