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Former JM Equipment 0 - 3 - • 5 February 2014 <br /> 1245 W. Charter Way, Stockton <br /> San Joaquin County <br /> c. In addition to hydrogen peroxide, mildly acidic amendments such as vinegar or citric acid may be <br /> used in the injection wells to control biofouling. All acidic amendments must be removed by <br /> pumping of the well until pH is restored to previous levels. <br /> d. The required annual fee (as specified in the annual billing invoice to be issued by the State Water <br /> Resources Control Board) shall be submitted until this NOA is officially rescinded. The 2013/14 <br /> fee was submitted on 14 January 2014. <br /> e. In the revised NOI GZA lists injection of high fructose corn syrup (HFCS) after monitoring for six <br /> months as the Contingency Plan if transition and compliance wells exceed the WQOs by 20% <br /> and do not decline after the hydrogen peroxide injections cease. Increases of by-products are <br /> allowed in the treatment zone and the transition zone wells. The purpose of the transition zone <br /> wells is to document the increases in the treatment zone are declining by the time they reach the <br /> transition zone. Increases in by-products may not exceed 20% above background or the water <br /> quality objective whichever is lower in the compliance wells (Action Levels). The Contingency <br /> Plan must be implemented if the Action Levels are exceeded in the compliance well(s) Monitoring <br /> will continue on a quarterly schedule until the data show evidence that the concentration of by- <br /> products have resumed to a level below the Action Level. <br /> f. Any changes to the remedial action plan such as the proposed air sparging will require the <br /> approval of the San Joaquin County Environmental Health Department, the lead agency for the <br /> groundwater cleanup on this case. <br /> Please submit a revise NO[ by 28 February 2014 clarifying if injections were made into OW-2 and <br /> proposing development of background levels for barium (Ba), cadmium (Cd), calcium (Ca), copper (Cu), <br /> lead (Pb), magnesium (Mg), manganese (Mn), mercury (Hg), molybdenum (Mo), and nickel (Ni). <br /> If you have any questions or concerns please call me at (916) 464-4615, or by e-mail at <br /> ibartonta7.waterboards ca aov. <br /> aures L.L. Barton, P.G. <br /> Engineering Geologist <br /> cc: w/encl: Kirk Larsen, SWRCB, UST Cleanup Fund, Sacramento <br /> Vickie McCartney, San Joaquin County Environmental Health Department, Stockton <br /> Raynold I. Kablonov II, Ground Zero Analysis, Inc., 1172 Kansas Avenue, Escalon 95351 <br />