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Hello Patrick, The Site Plan that you submit to the Environmental Health Department (EHD) for the firing range improvement project at the waste water treatment plant should include a Site Health and Safety Plan.The proposed Site Plan needs to include where you intend to excavate, type of equipment to be used,sampling procedures, lab to be used for sampling, how you intend to handle waste if encountered, and procedures that explain how you will handle potential unknown hazards. Site personnel need to have the appropriate level of training to handle situations that include the handling of unknown hazardous wastes. 40 Hour HAZWOPER training would be a minimum level of training for site personnel. The proper safety training records of personnel should be kept available. Here is a copy of the regulation that allows the EHD to require an owner of a CIA site to implement closure if necessary: a7fl0: GIWMBr �C6irtid A4p licali j/T'�4 Sec �o>g77� " �tii ? I 31 (a)This article sets forth the performance standards and the minimum substantive requirements for proper closure, postclosure maintenance and ultimate reuse of disposal sites.The EA may require the operator or owner to address site- specific conditions as part of the solid waste facility permit or any plan needed for closure of the site to ensure that public health and safety and the environment are protected.[For water quality aspects of closure and/or postclosure maintenance, refer to requirements set forth in section 20950.] (b)The regulations contained in this article apply to: (1)disposal sites that did not complete closure prior to November 18, 1990,in accordance with all applicable requirements;and (2)new postclosure activities that may jeopardize the integrity of previously closed disposal sites or pose a potential threat to public health and safety or the environment. (c)All closure plans submitted after the effective date of the regulations shall conform to the regulations in this article. Closure plans submitted prior to the effective date of this article that have been deemed complete and for which detailed comments have been supplied by the CIWMB and the EA within 12 months of the original submittal date shall not need to be resubmitted. Closure plans submitted prior to the effective date of this article that have been deemed complete but for which detailed comments have not yet been supplied by the CIWMB and the EA may not need to be resubmitted. (d)Closed sites for which closure plans were not approved pursuant to section 20164 or section 21099,and illegal or abandoned disposal sites which pose a threat to public health and safety or the environment shall implement the provisions of these regulations as required by the EA. The Site Plan should include site monitoring, such as radiological and methane detection, due to the fact that the footprint of the buried wastes has not been determined.The regulations you refer to are Title 27 of California Code of Regulations subsection 21 190 (g)- Postclosure Land Use. It reads: a ry _ 1 iia idhl�a �,9TM �5', [W-MR-- P- OS1E4lQS111#'8�.. rd, 1e � , i � ,1 _ � 4i.,. .j.{�"""N'1207- (a) .N ,(a)Proposed postclosure land uses shall be designed and maintained to: (1)protect public health and safety and prevent damage to structures, roads,utilities and gas monitoring and control systems; (2)prevent public contact with waste,landfill gas and leachate;and