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Part II, Section A.5 of the permit be clarified as to what level of changes in the well design and construction at the time of drilling need to be reported to EPA. RESPONSE: The agency acknowledges that real world conditions do sometimes require changes in the proposed well design and con- struction. After careful consideration the agency has decided* to .. let..this. .portion of the :periait stand :unaltered,. . : -However.; the Agency does agree to be available by telephone to advise the per- mittee on the level of reporting needed for changes during con- struction. COMMENT: The consultants for the permittee request clarification of Part II, Section B.7 regarding the amount of time over which a two-gallon leak from the annulus would be permitted before reporting would be required. RESPONSE: The agency acknowledges that a two-gallon leak from the annulus over many years does not necessarily indicate failure of the well system and *may not be cause for' shutting down the in- jection system. The current requirement for reporting any two- gallon leak will remain in the permit. Once reported, the Agency will consider the length of time that was required for this leak to occur before recommending further action. COMMENT: The consultants for the permittee request a reduction in the frequency of monitoring of the injectate for those com- pounds which appear at consistently low levels. RESPONSE: In view of the high cost of chromatographic analysis of volatile organic compounds and pesticides, the Agency has agreed to a change in the permit requirements. The final permit will require monthly monitoring for those compounds in the first year of operation. Any compounds not detected will revert to yearly monitoring at that time. If these compounds are detected subsequent to this monitoring reduction, or if EPA so requests in writing, monthly monitoring may again be required. COMMENT: The consultants for the permittee inquire whether a provision for automatic shut down of the well in case of malfunc- tion is required. RESPONSE: The draft permit did not require automatic shut down. However, since the comment letter was filed, the permittee has chosen of its own accord to install such an automatic shut down system. The final permit will be amended to require that the automatic shut down system be installed and maintained. The per- mit will also require that a trained operator be present whenever the well is in operation.