COMPLIANCE INFO - Laserfiche WebLink

Home Browse Search

Sample OakB4 was collected from a 55 gallon black hazardous waste drum found in the hazardous waste storage area. The drum was labeled as NonRCRA Hazardous Waste Liquid Water Based Ink. The drum was opened using a non sparking drum wrench. Once opened 30ppm of VOCs were detected coming from the drum by an MSA Sirius Multigas Detector. The sample was then collected using a new Coliwasa to obtain liquid from every level of the drum in rase there are multiple phases in the drum that have separated out. Only one phase was seen upon collection of the sample. Sample OakB4 was collected in a 32 oz clear glass jar and enough sample was taken to fill the container. The sample was then closed, sealed with evidence tape, photographed, placed in a cooler and locked in the back of the sampling vehicle. See photo exhibits 23 -26. V. LAB RESULTS AND WASTE DETERMINATION Each of the samples was analyzed by XRF (x-ray fluorescence) to test for any metals in the samples. None of the samples had metals in them near hazardous waste levels. See attachment 2 the ECL Reports. Table 1 below contains a summary of the laboratory analysis done and the results. Samples were analyzed using methods fromTitle 22 of California Code of Regulations, EPA approved SW -846 Test methods for evaluating solid waste, Physical/Chemical methods or the DTSC Environmental Chemistry Lab approved method. Sample OakB1, OakB2 and OakB4 were tested for flash point of a liquid by method EPA 1020B. OakB1 had a flash point below 59°F. The flash points of OakB2 and OakB4 came back greater than 140°F the regulatory threshold for ignitable. Therefore sample OakB1 is hazardous for Ignitable (Title 22 California Code of Regulations 66261.21(a) (1)), the others were not. Sample OakB2 and OakB4 were tested for acute water toxicity using fathead minnows (Pimephales promelas) a test known as "fish bioassay." The LC50 (lethal concentration at which 50% of the fish die with -in 96 hours) was below 500 mg/L for sample OakB2 and above 750 mg/L for sample OakB4. Thus sample OakB2 is Hazardous for Toxicity 66261.24(a) (6). Sample OakB4 did not fail for toxicity using the fish bioassay test. The fish bioassay test was done by the contract lab Advanced Technology Laboratories in Signal Hill, CA. The report is included as attachment 3. Sample OakB3 was tested for Total Petroleum Hydrocarbons (TPH) in the diesel and motor oil range. They were extracted by method EPA 3580A and analyzed by method ECL 816-M. TPH in the diesel range includes those compounds with 10 to 24 carbon atoms in them and the motor oil range includes those compounds with 22 to 32 carbon atoms in them. These are the typical size of the hydrocarbons found in diesel and motor oil. Results show that the samples contained used oil but not used motor oil since the types of compounds found in the substance were similar to those in diesel and motor oil however they did not match the patterns and distributions seen typically with motor oil. Thus the lab report concludes that the substance is used oil but not used motor oil and presumed hazardous for toxicity as waste oil according to appendix X (Chapter 11 of Title 22). SAMPLING REPORT Page 5 of 7 CASE NUMBER: 14008