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7,6_ _National Pipeline MIAappinn System Database -r� <br /> Live Oak reviewed the National Pipeline Mapping System (NPMS) database for <br /> evidence of hazardous materials pipelines within one-quarter mile of the Site. No such <br /> pipelines were identified. <br /> 8.0 IDENTIFIED CONTAMINATION SOURCES <br /> The following sources of past, current, on-site, and off-site contamination have been <br /> identified as a result of this investigation: <br /> Identified Contamination Source Evaluation 8 Recommendations <br /> Although no chemical use was reported <br /> by the Agricultural Commissioner's office <br /> for the most recent five years, agricultural <br /> A portion of the Site was developed chemicals may remain.in Site soils from <br /> I. for agriculture in the 1930s or past uses. The only way to determine the <br /> earlier- (Past on-site) presence or absence of these chemicals <br /> is by testing and analysis. Typically, any <br /> such testing is conducted at the property <br /> owner's discretion. <br /> Surrounding properties are used for Assuming responsible application of <br /> 2. agriculture. (Current and past off- agricultural chemicals, no action is / <br /> site) warranted at this time. { <br /> One domestic well is located on the If the well is not planned for use in the <br /> 3. future, it should be properly destroyed J <br /> Site. (Current on-site) under EHD oversight / <br /> Dredge tailings were once located Gravel mining pits can become <br /> along the southern side of the Site; contaminant pathways because the <br /> some still remain near the southeast surface soil has been removed, leaving <br /> comer. It appears the tailings were the more porous sand and gravel J <br /> 4. generated and removed by a nearby exposed. Surface contaminants, <br /> raining operation. The ponds along including oil and other chemicals from <br /> the southern property line were left ruining machinery, can then be more <br /> after removal of the tailings. easily washed into the groundwater <br /> {Current and past on-site) aquifer. <br /> LOGE1022 Page 7 <br />