Laserfiche WebLink
California Agional Water QualityCaontrol Board <br /> Qa; Central Valley Region a <br /> Steven T.Butler,Chair <br /> Winston H.Hickox Gray Davis <br /> Secretaryfor Sacramento Main Office Al l,'' Governor <br /> Environmental Intemet Address: http://www.swrcb.ca.-ov/—rwgcb5 ,S p ' �C <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> 3 September 1999 <br /> Mr. Douglas Driver <br /> Fonzia Corporation <br /> 1001 Tahoe Blvd. <br /> Incline Village,NV. 89451 <br /> CONCURRENCE: NO FURTHER ACTION,FONZIA-FORTIFIBER SITE, 501 E. ACACIA ST. <br /> TRACY, SAN JOAQUIN COUNTY, CALIFORNIA <br /> Staff has reviewed the case file and the results of groundwater and soil sampling conducted at this site. <br /> The facility ceased operation in 1995 and several site closure cleanup activities were performed, <br /> including removal of impacted soil. Excavations in 1995 extended to 12 feet below grade,the surface of <br /> groundwater at that time. Further investigation in December 1998 and March and May 1999 found that <br /> groundwater had risen to 6 feet below grade, and that some residual soil contamination and low levels of <br /> groundwater impacts remain, although the 1995 activities effectively removed the source of <br /> contamination. The sampling from December 1998 and March 1999 detected up to 15,700 µg/L total <br /> extractable petroleum hydrocarbons as motor oil (TEPH-MO) in groundwater, a level that caused some <br /> concern to staff, but sampling in May 1999 using appropriate filters to remove suspended soil particles <br /> failed to confirm these levels. The May samplings detected up to 1670 µg/L TEPH-MO in groundwater. <br /> Staff concurs that this level poses very low risk, given that the source has been removed and that the <br /> motor oil will degrade. BTEX compounds (benzene, toluene, ethylbenzene and xylenes) are reported at <br /> trace levels in three groundwater samples from the former storage area, but all levels are less than 1 <br /> µg/L. Metals analyses (Method 6010), requested by staff, revealed nothing greater than background in <br /> soil or water. Solvents (Method 8010) likewise were not detected. <br /> Two unexpected semivolatile compounds, phenol and bis- (or di-) 2 ethylhexyl phthalate, were detected <br /> in analyses by Method 8270 requested by staff. The phenol was found in two soil samples at levels up <br /> to 5300 µg/kg. Both of these occurrences were in samples taken from 12 feet below grade, the level of <br /> groundwater at the time of the 1995 investigation and soil removal activities. Although phenol is <br /> slightly soluble in water, it was not detected in groundwater. Its presence at this site is unexplained <br /> based on what is known of past site activities, but the two occurrences are in the vicinity of the former <br /> storage area. The bis-2-ethylhexyl phthalate also is unexplained by existing knowledge of site history. <br /> The sole detection of this compound was 22 µg/L at 33 feet depth in the deepest borehole, near the <br /> storage area, at the site's upgradient end. The Maximum Contaminant Level (MCL) for this compound <br /> is 0.004 mg/L (HSC Title 22, Article 5.5). <br /> Your consultant, GTI, states its belief that the phenol and the phthalate do not appear to pose a threat to <br /> human health or the environment because of their low concentrations, limited distributions and the <br /> absence of the phenol in groundwater. In both cases it appears that these compounds may have credible <br /> California Environmental Protection Agency <br /> Ca Recycled Paper <br />