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Herman&Helen's Marina <br /> Comments on Drab MRP <br /> May 7,2001 <br /> Page-2- <br /> Historical MTBE results of all but two groundwater samples from MW-1 indicate no detection at or above <br /> the laboratory reported detection limits. MTBE was detected at only trace concentrations in the other two <br /> samples (1.0 and 1.3 gg/L). Based on the hydrogeologic setting, Condor believes that the MTBE <br /> concentrations in MW-1, when present, are likely to have been indicative of MTBE background <br /> concentrations in the nearby and up-gradient Little Connection Slough and not from the down-gradient <br /> ASTs. <br /> Based on the additional information provided herein and the historical data previously provided, Condor, on <br /> behalf of Herman & Helen's Marina, respectfully requests that the CRWQCB reconsider the request to <br /> abandon MW-1. Although the cost savings represented by the abandonment of MW-1 is not very large <br /> relative to the potential cost of the project, it is not unsubstantial when considering that the project costs may <br /> have to be incurred by Herman&Helen's Marina without assistance from the UST Fund. <br /> Regarding the draft MRP: <br /> After reviewing the draft MRP, we called you on May 8 and again on May 9, 2001 regarding two minor <br /> changes to the MRP which you verbally agreed to. The changes, both in Table 2 of the draft MRP, include <br /> specifying that the groundwater samples will be analyzed for total petroleum hydrocarbons quantified as <br /> gasoline (the draft MRP specified analysis by Total Petroleum Hydrocarbons) and that the maximum <br /> detection limit for ethanol and tertiary-butanol will be 5 µg/L (instead of 0.5 µg/L as specified in the draft <br /> MRP). On behalf of Herman& Helen's Marina, Condor requests that these changes be included in the frial <br /> MRP for the site. <br /> If you have any questions or require additional information, please contact me at(209)234-0518. <br /> Respectfully submitted, <br /> CONDOR EARTH TECHNOLOGIES,INC. <br /> � t L� <br /> Donald F. Kresse <br /> California Registered <br /> Geologist(#6430) <br /> cc: Mr. Andrew Smith, Herman and Helen's Marina <br /> Ms. Margaret Lagorio, San Joaquin County PHS/EHD <br /> \\Pdc\projects\1432 H&Helen's\Correspondence\MRPCommmts5-7-Ol.doc <br /> I�.� CONDOR <br />