Laserfiche WebLink
t E t <br /> J' f <br /> E ' 30 November <br /> 2005 <br /> ! I <br /> " AGE-NC Project No 96-0235 <br /> T496,13 of 1�3' _ r <br /> level (1V1W'1 and MW-2) 'The vertical ands lateral extent'of the,'ontamination is not well <br />' defined and will require additional monitoring points Y_ <br /> Grab ground water samples collected from-soil borings advanced near the former UST No 3 <br />' area contained detectable concentrations of TPH-g, T -Sand B <br /> PITEX at depths as great as ` <br /> -; 180 feet bsg However, the installation_and sampling,of the wells has not demonstrated , , r <br /> residual contamination is present Detectable„concentration of TPH-g and BTEX were <br /> reported in well MW-21 (screened between 75 and`85 feet bsg),located at the southern edge <br /> ' of the site The vertical and lateral extent ofpetrole m hydrocarbon-Impacted ground water <br /> appears to be sufficiently defined In the,area of former UST No 3 <br /> • In the area of the northern UST cluster,the,vertical extent of mpacted ground water appears <br /> w to be defined,the lateral'extent of Impacted ground water has not been dellneated'east of well <br />' MW-14 i <br /> -5.0. RECOMMENDATIONS <br /> r , <br /> Based on the findings,of the environmental activities recounted in this report, AGE recommends <br /> Continued limited quarterly ground water monitoring, sampling of wells that have been <br /> ;`non-detect" for several,quarters should be,eliminated or reduced to annual sampling' -r <br /> • Performance of remediation of shallow hydrocarbon-Impacted ground water at the northern <br /> cluster'UST area as previously proposed The previously-proposed plan should be expanded, <br /> r to included'the remediation of Impacted ground water at,the southern UST43 area°; <br /> 16.0. ,LIMITATIONS <br /> t r <br /> Our professional services were,performed using that degree of care and skill ordinarily exercised by <br /> environmental consultants practicing in this or similar localities-*The findings were based upon, > , <br /> analytical results provided by an independent laboratory Evaluation of the hydrogeologic conditions <br />' at the site for-the purpose of this Investigation was made�frorn a'limited number of available ;Y J <br /> =subsurface data points (i el ground' water',samples from ground water monitoring wells) and <br /> subsurface'conditions may vary,away from these+data points =`No, other warranty, expressed or" <br /> t implied, Is made as to the professional Interpretations, opinions and recommendations contained'i , <br /> ` r r f <br /> this report <br /> r <br /> I Advanced GeoEnvtronmental,Iric <br /> I ! <br /> J ' <br />