WORK PLANS - Laserfiche WebLink

Home Browse Search

- -- - - - . # �� KLEINfELDER 5 DTSC SITE INSPECTION Mr. Rada Chanmugathas and Kian Soleiman of DTSC, Ms Sandra Baker and Douglas Baker of Delta Plating and Mr. John Jackson of the SJC/EHD were present for site inspection activities on May 20, 2004. The following site conditions and findings are summarized below and documented in a "Phase I Environmental Assessment Checklist Verification Inspection; Delta Plating Inc., Stockton, California 95206 EPA ID Number CAD068845254." 5.1. GENERAL INFORMATION The site includes "several rooms' on approximately 0.56 acres and according to the DTSC, "the nearest residential area is near a cross street west of the facility." Kleinfelder also noted residential areas south of the site. The primary activities were reported as repairing and chrome plating car bumpers. Mr. Baker commented that some portion of the wastewater was recycled, although DTSC noted a recycling exemption was not filed with the local health department. All wastes generated were reportedly pumped to the treatment system behind the plating room to the north and finally discharged into the sanitary sewer. On November 18, 1993 the facility was cited for illegal disposal of plating bath solution onto the ground surface by the county. "A sample was collected and the result indicated elevated nickel and copper levels." Mr. Jackson from the county was contacted in August of 2005 and indicated that the sample was collected from a waste stream. In July of 2003 the facility requested permission from DTSC to treat cyanide. The local health department had an enforcement case against the facility and the facility stopped treatment of cyanide. On May 20 of 2004 DTSC noted two AOC including the Plating Room and Treatment Plant Area. The inspector 'observed several cracks on the floor with standing liquids from plating bath in the bermed area and second area of concern was in the wastewater treatment area which I observed stain and cracks on the floor." The DTSC document also noted a third AOC noted on May 19, 2004, which included a storm drain. This document stated that according to Mr. Baker, `The storm drain area has been cleaned, checked and covered under the oversight of the CUPA" (health department). Waste streams being generated or treated were summarized as the following: • Aqueous waste with Metals — pH adjustment, neutralization, precipitation, flocculation • Special waste / sludge containing metals —filter press • Aqueous waste — hexavalent chromium — reduction 57252.T02/ST05R999/DH:ly Page 10 of 29 ©2005 Kleinfelder, Inc. September 1,2005