Notes
Letter and final laboratory analysis report (Case File PAR025-18) dated October 28, 1999 from Aquatic Research Incorporated Laboratory Director Steven Lazoff to Ken Ludwa at Parametrix Incorporated, covering water samples received October 11, 1999 from Port Of Seattle. Sample ID POS NEPL analyzed for TSS (2.3 mg/l), NWTPH-Dx diesel (<0.05 mg/l), motor oil (<0.10 mg/l), and total metals including cadmium (<0.00020 mg/l), copper (0.0070 mg/l), lead (<0.0020 mg/l), and zinc (0.102 mg/l). QA/QC data includes duplicate analysis, QC check recoveries (TSS 104%, diesel 102.80%, motor oil 104.80%), and blank results. Methods used: EPA 160.2 for TSS, NWTPH-DX for petroleum hydrocarbons. Sulfuric acid/silica gel cleanup applied post-extraction.