PERMISSIBLE LIMITS FOR METALS - occeweb.com

1 METALS LIMITS PERMISSIBLE LIMITS FOR METALS metal Primary Drinking Water Standard (MCL)1 mg/l Secondary Drinking Water Standard2 mg/l Hazardous Waste Screening Criteria (TCLP)3 mg/kg TCLP Hazardous Waste Limit4 mg/l Common Range in Soils5 mg/kg Livestock Water Quality6 mg/l Surface Water Quality7 mg/l Land Application of Sewage Sludge8 ppm Aluminum (Al) 10,000-300,000 Arsenic (As) 100 1-50; 1-4010 75 Antimony (Sb) Barium (Ba) 2000 100-3,00010 Beryillium (Be) Cadmium (Cd) 20 85 Chromium (Cr) 100 1-1,000; 5-3,00010 3,000 Copper (Cu) 2-100 4,300 Iron (Fe) 7,000-550,000 Lead (Pb) 100 2-200 840 Manganese (Mn) 20-3,000 Mercury (Hg) 4 57 Nickel (Ni) 5-500 420 Selenium (Se) 20 100 Silver (Ag) 100 Thallium (Tl) Zinc (Zn) 10-300 Compiled by: Brent L.

2 Balentine 7/95 (Direction of Everett Wilson) Revised by: Everett Wilson and Carl Solomon 2/02 1 MCL-Maximum Contaminant Level for drinking water from a public water supply system. From Current Drinking Water Standards , Office of Water. 2 Secondary Standards for drinking water from a public water supply system are suggested levels only and are unenforceable. From Current Drinking Water Standards , Office of Water. 3 Hazardous Waste Screening Criteria (TCLP) refers to LIMITS that are allowed in solid waste or soil for disposal in a landfill.

3 LIMITS developed by ODEQ under authority given by Test Methods for Evaluating Solid Waste, Physical/Chemical Methods , SW-846 Manual, Section , Office of Solid Waste. 4 TCLP - Toxicity Characteristic Leaching Procedure is a test to determine the mobility of contaminants in solid wastes or soils. These are the LIMITS allowed to leach out of soil or solid waste in a landfill. From 40 CFR 5 Naturally occurring in the soil. LIMITS taken from Lindsay, 1979. 6 Levels of METALS in water suitable for cattle or other livestock.

4 Summarized from , Council on Agriculture, Science and Technology (CAST), and National Academy of Sciences (NAS). 7 METALS allowed in surface waters having the designated beneficial use of Public and Private Water Supplies. From OAC 785-45-5-10, Oklahoma s Water Quality Standards approved by Oklahoma Water Resources Board (OWRB), effective July 2001. 8 metal concentration LIMITS allowed in the use or disposal of sewage sludge. From 40 CFR 9 Copper and Lead have action levels in drinking water standards instead of MCL's.

5 From Current Drinking Water Standards , Office of Water. 10 Naturally occurring in the soil. From Deuel and Holliday, 1994, Soil Remediation for the Petroleum Extraction Industry.