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f CENTRAL VALLi REGIONAL WATER QUALITOONTROL BOARD 1NS 'EC`T ON 'UI2 March 19, 1996 DISCHARGER: All Pure Chemical LOCATION & COUNTY: 26700 South Banta Road, San Joaquin County CONTACT(S): Verrill Norwood, Vice President-Pioneer Chlor Alkali Co., and Tim Vickers, All Pure Plant Manager INSPECTION DATE: 23 January 1996 INSPECTED BY: Polly Lowry and Robert Reeves ACCOMPANIED BY: Verrill Norwood and Tim Vickers OBSERVATIONS AND COMMENTS: On 23 January 1996, Robert Reeves, Board project manager for Defense Distribution Region West (DDRW), Tracy facility, and I met with Verrill Norwood and Tim Vickers at the Tracy All Pure Chemical Company (All Pure) facility. Mr. Vickers is the Plant Manager of the Tracy facility, and Mr. Norwood is Vice President for Environmental Affairs for Pioneer Chlor Alkali Company which owns All Pure. The purposes of the meeting were to discuss ground water contamination at the facility and the likely impacts of ground water extraction and treatment at the nearby DDRW on migration of volatile organic compounds (VOCs) from All Pure to the north/northeast, and to inspect and sample the wastewater ponds. I hand delivered our 22 January 1996 letter Ground Water Investigation at All Pure Chemical Company, Tracy which requests additional ground water investigation and a closure plan for the wastewater ponds. I also left with Mr. Norwood copies of maps showing hydropunch locations and sampling results conducted by DDRW to the north of All Pure and copies of maps showing the DDRW proposed ground water extraction well network and infiltration gallery. Mr. Norwood and Mr. Vickers discussed the recently-installed wastewater recycling system and plant operations. The wastewater recycling system, expected to be operating by the end of March 1996, will allow discharges to the two current wastewater ponds (Ponds 1 and 2 on the attached map) to be discontinued. Water that has been discharged to these ponds from plant operations will be recycled for reuse in the plant. Storm water now drains to a 1,000 cubic foot cement vault, from where it will also go to the recycling system. The two ponds used for containing water for fire protection (Ponds 3 and 4 on the attached map) and the pond used for storage of water softener (Pond 5) are not scheduled for closure. Mr. Norwood submitted a closure plan on 22 June 1994 for the three process ponds (shown as Ponds IA, 1, and 2 on the attached map). At the time of our inspection, Pond IA was no longer in use.