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e <br /> • <br /> CLEANUP AND ABATEMENT ORDER _3_ <br /> PIONEER AMERICAS,INC. <br /> PIONEER CHLOR ALKALI COMPANY,INC. <br /> ALL PURE CHEMICAL COMPANY <br /> SAN JOAQUIN COUNTY <br /> 14. Ina 22 January 1996, letter staff requested the Discharger submit a workrlan; y 2 February <br /> 1996 to complete the definition of soil and groundwater contaminationind sfbnit a closure plan <br /> for the ponds by 1 March 1996. The Discharger responded in a 21 Feb ary 19964.etter that the <br /> groundwater contamination was coming from offsite, the ponds were to be closed, <br /> monitoring wells could be installed onsite near the fenceline close to tl :: h'eady existing <br /> monitoring wells. <br /> 15. A 20 March 1996 staff letter again requested the DiS�ha.:�ger:to suhri�lt a work plan to determine <br /> the lateral and vertical extent of groundwater conta maffbt#:"""Offsite'wells were required to <br /> determine the extent of ground contamination. <br /> 16. The Discharger submitted a 29 April 1996 report entitled` .....a kW/anfor Soil.:: nd Ground Water. <br /> The work plan did not address determining the vertical and lateraI''Went af'groundwater <br /> contamination to the northeast of All Pure. In..a.14 May 1996 letter: sta requested the Discharger <br /> submit a work plan which would determin .-I ve al and lateral ezfent of contamination. <br /> 17. The Discharger submitted a 5 June 19.9.6 repo ;entitled YVi fk lan for Ground Water <br /> Investigation. This work plan did not prgosezetermining tl#'e vertical or lateral extent of <br /> groundwater contamination beyondf l ?tir prdperty.:b.. ndary.. Staff did not approve the <br /> work plan because the work plan again did;"'of add ss ietermining the vertical extent of <br /> contamination or the lateral.,extent of contamination aortheast of All Pure. The Discharger <br /> conducted the investigation wit4pt staff appto.in order to justify sampling groundwater <br /> offsite. <br /> 18. The Discharger sub. 6tted a`�4 June 1996 report entitled Closure Work Plan for closure of the two <br /> existing wastewa er ponds, a std,age..ppnd currently used for emergency fire flow, and a former <br /> fire protection wa r�storage pond. A:6-August 1996 letter from staff requested additional details <br /> ;61'h"the.,proposed closure`h�, _30 Aug46996. The Discharger submitted a 9 September 1996 report <br /> <>'entitleil< evised ClosureW 3c3rk Platz. Staff is currently reviewing this work plan. <br /> 19. '' '"`Y`l e Discharg&Vbmitted 27 September 1996 HydroPunch Investigation report. The results of <br /> : e ght llydropunc—h"" Gt dwater samples showed significant chloroform concentrations are present <br /> : along tfiu:: ortheast pe meter of the All Pure facility and south of the facility's operational area. <br /> ThaDischStger propc9ed to install three monitoring wells to the south of the facility's operational <br /> area. "Th` e.pr.. vpQk: vould not determine the vertical or lateral extent of groundwater <br /> ». contamination beyond the boundaries of the All Pure property. <br /> 20. In at '1PSt tober 1996 letter, staff approved the Revised Closure Work Plan with several <br /> contingencies. <br /> 21. Section 13304 (a) of the California Water Code provides that: <br /> "Any person who has discharged or discharges into the waters of this state in violation of any waste discharge <br /> requirements or other order or prohibition issued by a regional board or the State Board,or who has caused or <br /> permitted,causes or permits,or threatens to cause or permit any waste to be discharged or deposited where it is,or <br />