Laserfiche WebLink
Waste Acceptance Guidelines — August 2020 <br />Constituent Limits for "Subtitle D" Lined Cell Disposal <br />Potrero Hills Landfill will only accept material that is represented by analytical results indicating <br />concentrations below the listed values. PHLF will base approvals on total results where the total <br />threshold limit concentration (TTLC) of a particular constituent does not equal or exceed 20 times <br />(TCLP dilution factor) or 10 times (WET/STLC dilution factor) the listed soluble threshold for organic <br />and inorganic compounds. If a particular constituent exceeds total threshold limit concentrations, <br />additional extraction tests will be required. <br />Metals / Inorganics Constituent Limits (Subtitle D Lined Cell): <br />TTLC Limit <br />(mg/kg) <br />STLC <br />Required <br />STLC Limit <br />(mg/L) <br />TCLP <br />Required <br />TCLP Limit <br />(mg/L) <br />Antimony 500 > 150 _ 15 <br />Arsenic 500 > 50 _ 5.0 2100 5.0 <br />Barium 10,000 > 1,000 100 > 2,000 100.0 <br />Beryllium 75 > 7.5 0.75 <br />Cadmium 100 > 10 _ 1.0 220 1.0 <br />Chromium* 2,500 > 560 _ 5.0 > 100 5.0 <br />Chromium +6 500 > 50 5.0 <br />Cobalt 8,000 > 800 80 <br />Copper 2,500 250 > _ 25 <br />Lead 1,000 > 50 _ 5.0 > 100 _ 5.0 <br />Mercury 20 2 > _ 0.2 4 > _ 0.2 <br />Molybdenum 3,500 23,500 350 <br />Nickel 2,000 > 200 _ 20 <br />Selenium 100 > 10 1.0 220 1.0 <br />Silver 500 > 50 5.0 > 100 5.0 <br />Thallium 700 > 7.0 0.7 <br />Vanadium 2,400 > 240 24 <br />Zinc 5,000 > 2,500 250 <br />Fluoride Salts 18,000 > 1,800 180 <br />Cyanide 250 <br />Sulfate / Sulfide 500 <br />*If Total Chromium > 100 mg/kg, a TCLP extraction test is required. If Total Chromium > 560 mg/kg, <br />both WET/STLC and TCLP extraction tests are required. If either STLC or TCLP tests detect Chromium <br />>5 mg/L, the material is considered hazardous and will not be accepted for disposal at PHLF.