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Home My WebLink AboutSLOUNIFLOW_FS1 Admin iRC3926i Color_2483_001Boyle, Kerry From: Boyle, Kerry Sent: Thursday, April22,2010 4:30 PM To: Boyle, Kerry Subject: FW: PG&E San Luis Obispo Service Center, 4325 S. Higuera Street, San Luis Obispo Attachments: PGE-UST-Group_B_Sites-F1_F2-San_Luis_Obispo-Final.pdf;Table2 AnalyticalResults Table_SLO.pdf;'l 0-04-02 1 3.pdf From: Saur, Robeft [mailto:R4Sw@pge,com] Sent: Tuesday, April 13, 2010 1:19 PM To: Boyle, Kerry Cc: cwalsh@waterboards,ca,gov; Hernandez, Richard D (EFS-SLO) Subject: PG&E San Luis Obispo Service Center, 4325 S. Higuera Street, San Luis Obispo Kerry- PG&E collected groundwater samples beneath the San Luis Obispo Service Center located at 4325 S. Higuera Street, San Luis Obispo, in the vicinity of the former underground storage tanks (USTs). The lab results detected TPHd, toluene, and MTBE upto220 ppb, 1.3 ppb, and 1.2 ppb, respectively. A map of the sample locations, a table that summarizes the lab data, and the complete lab report are attached. <<PGE-UST-Group_B_Sites-F1_F2-San_Luis_Obispo-Final.pdf>> <<Table 2 Analytical Results Table-SLO.pdf>> <<10- 04-0213.pdf>> The groundwater samples were collected in the vicinity of the former USTs that were removed in 1996. During the 1996 removal of the USTs, groundwater samples were collected from beneath the removed USTs and detected low concentrations of BTEX. Based on the sampling results, the San Luis Obispo County Environmental Health determined no further action was required per their March 29, '1996 letter. Per our telephone conversation today, I understand that an UST Unauthorized Release Report doesn't need to be filed at this time since it appears that the TPHd, toluene, and MTBE detections in the groundwater are associated with the operation of the former USTs that were removed in '1996. No USTs currently exist at the Site. PG&E will submit a formal report of the investigation activities and findings, with conclusions and recommendation, in May 2010. Please contact me if you have any questions or need additional information -Rob Robert Saur, PG Remediation Proj ect Managel PG&E - Environmental Remediation 3401 Crow Canyon Road San Ramon, CA 94583 Office: 925.415.6371 F ax: 925 .415 .6852 Cell: 925 .324.9101 Email: r4sw@pge.com 4t26120r0 2 OATE, SITE MAP WITH BORING LOCATIONS PACIFIC GAS AND ELECTRIC COMPANY SAN LUIS OBISPO SERVICE CENTER 4325 SOUTH HIGUERA STREEJ SAN LUIS OBISPO, CASanbc % 57 Laiayene crcb 2nd Fbor Laiayene calilornia PHoNE: i925) 299'9300 F*.(925) 299 9302 j I ) -vf- t:' 4 '/'LI t ,3 4' A,t . ..l4T4*'.ts \'\ \' .1, \\ '. \-! jl \ I ,.''} ;! ry;r|.r,&a sLo-2a fl jr r,l Ir ji lr!t I asLo-1 .\:''\, asL ol u2 J)uIo . SLG3 "r I il 't I .er #F-tr . t.,J .'x l: -J ''' ,:.d , i,:..r' LEGEND: . SLO-1 BORING LOCATION ffi AppRoxrMArE F.RMER usrs AND FUEL T.LAND LocATroN APPROXIMATE PG&E PROPERTY BOUNDARY EE-I UST_lnvenlory\UST-Gro!p_BS[es\1 Noles tig/L - micrograms per liter ft bgs - feet below ground surface ND - not detected, various reporting limits <X-XX - chemical not detected above the indicated laboratory reporting limit EPA - Environmental Proteciion Agency VOCS - volatile organic compounds MTBE - methyl-t-butyl ether TPH-g - total petroleum hydrocarbons as gasoline TPH-d - total petroleum hydrocarbons as diesel Bolded values exceed reporting limit Primary MCL - Primary Maximum Contaminant Level as established in 22 CCR$64431 NE - not established Table 2 Summary of Groundwater Analytical Results PG&E San Luis Obispo Service Center 4325 S. Higuera Street, San Luis Obispo, California EPA Method 82608 Other Oxygenates ND ND ND ND Other VOCS ND ND ND ND MTBE <'1.0 1.2 <'1.0 <1-0 13 Total Xylenes <1.0 <1.0 <1-0 <1.0 1,750 Ethylbenzene <1 0 < 1-0 <1-0 <1.0 300 Toluene <1.0 1.3 <'1 0 <1.0 150 Benzene <0.50 <0.50 4,50 <o 50 1.0 TPH{ 160 150 220 NE TPH{ <50 <50 <50 NE Sample Oepth (ft bss) 15 15 20 Drinklng Water Siandards; Primary MCL Samplo Date 3t31t2010 3t30t2010 3t30t2010 Samplo lD sLo-1-15 sLo-2-15 sLo-4-20 TRIP BLANK Boring lD SLO-1 SLO-2 SLO-4 Page 1 of '1 )-)t ,fl MEMORANDUM TO:Note to File RE FROM: Leah Stanley PG&E SLO Service Center - UST Status DATE: July 14, 1998 Spoke with Mike Newsom (595-6337) today regarding the status of their UST system. As it turns out, there is one 500 gallon waste oil tank at this site. This tank is currently in use. B&T Construction will be assessing the system to determine what upgrade work if any needs to be done to meet the 12122198 regulatory requirements. Mike will let me know as soon as he knows. If they decide to keep the tank in operation, Mike will send me an updated business plan and financial responsibility forms. I will send him Forms A, B, and C to be completed and returned to this office. t,6 4Sz{ t. /},J&." r{42 noalfireJune 10, 1998 City of SanLuis ObisPo City Fire Department 2160 Santa Barbara Avenue San Luis ObisPo, Ca9340L Mr Spencer Meyer Thank you for You assistance: Michael A. Newsom Pacific Gas & Electric PO Box 8592 San Luis Obispo, Ca 93406 On May 21,lggS during construction at our San Luis Obispo service center a historic spill siie was discovered. After removal of a cement foundation in the northwest corner oitft" yard the odor of a petroleum product was detected see sito diagram (attachment 1). The job was halted and a call was placed to my office for assistance. I contacted Zymaxlabs and had them retrieve a soil sample for analysis (attachment 2). When the sample came back with a strong TPH finding, I then requested a test for PCB (attachment fi. On the morning of May 28,1998,I contacted your Department with information about the sPill. After a joint site visit a plan of attack was developed for handling the spill- Six samples were taten on the perimeter of the site in order to determine the limits of the affected area (attachment 4 - 9 ). With all samples Pl through P6 coming back as ND, we over excavated the original site and removed approx. 54 yards of soil and shipped them to Chemical Waste Manug*-"ntvia Allwaste Transportation for disposal' Two bottom samples (B1 & 82) were taken after excavation to assure all oil was removed (attachment l0 & 11). At the same time at your request the origrnal sample from (attachment 2) was tested by Zymax for metals (attachmerrt 12). All results were reported to yolrr office and verbal permission to close was obtained' If you have any questions or need additional information, please contact me at 595-6337 or pager Zlg-iZgO. I will be happy to supply you with whatever is needed' Attachments: f,,:fl\, ,rililililillililll otyoFsan luls oBtspo FIRE DEPARTMENT 2160 Santa Barbara Avenue . San Luis Obispo, CA 93401'5240 ' 805/781-7380 "Corrrtcsy E Seruice" June l l, 1998 Mike Newsom PG&E 406 Higuera Street San Luis Obispo, CA 93401 Subject Dear Mr. Newsom We would first like to thank you and your staff for your cooperation and professionalism regarding the cleanup of contaminated soil at the above-referenced site. Based on the final analytical cleanup results and the information provided by your office, it has been determined that no significant soil contamination associated with the above-referenced (new) building pad area remains. There[ore, assuming that the information provided was accurate and representative of existing conditions, it is the position of this office that no additional sampling or cleanup of the area in question is required. It should be noted that this letter does not relieve the property owner of any responsibilities mandated under the Calilornia Health & Safety Code if existing, additional, or previously-unidentified contamination is discovered. Should you have any questions, please contact me at 781-7383. Sincerely, Coordinator c:Tom Baasch, Building Official John F. Scholtes, County Environmental Health ffi ry City ol San Luis-Obispo.is committed^to include the disabled in all of its services, programs and activities. @[L-Nl feteconimunications Deviie for the Deal (805) 781-7410. EPI a P2 BL Ef6 e I I BI a -) o \ I a P3 o Yt Gs gP5 gr{ @ = 0nrorNRu ConramrNATtoN (zZoo rrn orr_) $ = Pl - ?6 rEsT snr.apres To coNFrRM LlMrTS .(;^^,dfito I o3 Barrou SRr-rrpues AF-TeR ElcAvATtoN (Sq yenus)