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f � � NOA Drywell Closure and Investigation Work Plan Page 13 of 16 March 18, 2014 borehole will be removed, including the well casing if practicable. The open borehole will then be grouted. The grout cement will be given sufficient time to settle and set. The remaining hole will then be sealed with cement. The contents from the drain will be removed. The drain pipe discharge line will be disconnected from the wells, pressure washed, filled with grout cement and permanently sealed. 4.2.2 Waste Disposal Drill cuttings, decontamination water, drain and well contents will be properly containerized and ' stored as necessary during site activities. Disposal methodologies will be contingent upon analytical results. Laboratory samples will be disposed of by the analytical laboratory in accordance with their established protocols. All waste will be disposed of in accordance with ' federal, state, and local regulations. 4.2.3 Reoortino ' Following completion of well destruction activities as described above, NOA will prepare a well destruction completion report. This report will include the EHD well destruction permits. 4.3 Health and Safety Plan Please see the site-specific Health and Safety Plan for sampling and well destruction activities, included as Appendix B. 5.0 ALTERNATIVE DISPOSAL OF INDUSTRIAL WASTE FLUIDS 5.1 Current Curing System Curing is the attainment and preservation of an adequate temperature and moisture content in concrete so that the desired properties may develop. Curing has a significant effect on the properties of finished concrete. Concrete test specimens are cured at NOA's Lodi Office. The curing method used is a Fog Curing Concrete System in which a fine fog mist is frequently applied to concrete samples inside of a closed, high humidity room Concrete Cure Room. This system was disabled by NOA on March 6, 2014. 5.2 Current Curing System Waste Fluids Disposal The waste fluids from the Concrete Cure Room were being discharged via a floor drain into two (2) on-site drywells. The floor drain is located in the northeast corner of the Concrete Cure Room. The drain pipe discharge line extends to approximately 17 inches bgs beneath the building footings, runs six (6) feet due east, then discharges into the two (2) drywells. The drywells are located approximately three (3) feet due east of the drain, in the paved exterior portion of the Site. The discharge was stopped by NOA on March 6, 2014. 902 Industrial Way•Lodi,CA 95240-209.367.3701 •Fax 209.369.4228 02014 Neil O.Anderson&Associates,Inc