UNDERGROUND STORAGE TANK REMOVAL REPORT UT-4 7 I_I nn .tredu i n The purpose of this Tank Removal Report is to summarize historical activities involving underground storage tank #UT-47, located near Bldg . 324 , in Area I of the Rockwell International , Rocketdyne Division , Santa Susana Field Lab . i1 . Tom . r Tank Identification - UT-47 Previous Tank Identification - T102 Size - 1,200 gallon s Structure - Steel Contents - Diesel/Fuel oil Removal Date - August 26, 1987 Abandonment Permit # - 698 (a tt achment A) Tank Abandonment Checklist Lead Agency - VCEHD LUFT File # C9009 4 VCEI-ID Inspector - Jerry Burke Photos Availabl e III, Illustration s Vicinity Map - (a tt achment B) Site Map - ( attachment C ) IV. Discussio n UT-47 was located in Area I of SSFL, immediately south of the Instrumentation laboratory, Building 324 . It was buried approximately seven to ten feet underground between the buildings and the Area I Service Road . The tank was reportedly installed in 1959 and was used to store fuel oil to operate powe r • generators during natural gas curtailment . The tank was excavated and removed on August 26, 1987 as part of Rocketdyne's Tank Removal Program . A soil sample was collected from the bottom of the excavation and analyzed by the Rockwell International, Analytical Chemistry Laboratory . Diesel was reported at a concentration of 1,700 parts, per million . Records indicate that soils containing diesel fuel were removed at the time of the tank removal . Following the results to the soil sample, the site was referred to the VCEHD Leaking-Underground Fuel Tank--(LI FT) program- (attachmv ent D) .. Consequently, Rocketdyne engaged the services of Groundwater Resourc e Consultants, inc . (GRC) to prepare a "Preliminary Site Assessment Work Plan, HDMSe00024198
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UNDERGROUND STORAGE TANK REMOVAL REPORTUT-4 7
I_I nn.tredu i n
The purpose of this Tank Removal Report is to summarize historical activitiesinvolving underground storage tank #UT-47, located near Bldg . 324 , in Area I ofthe Rockwell International, Rocketdyne Division , Santa Susana Field Lab .
i1 . Tom . r
Tank Identification - UT-47Previous Tank Identification - T102Size - 1,200 gallon sStructure - SteelContents - Diesel/Fuel oilRemoval Date - August 26, 1987Abandonment Permit # - 698 (attachment A)Tank Abandonment ChecklistLead Agency - VCEHDLUFT File # C90094VCEI-ID Inspector - Jerry BurkePhotos Available
III, Illustration s
Vicinity Map - (attachment B)Site Map - (attachment C)
IV. Discussion
UT-47 was located in Area I of SSFL, immediately south of the Instrumentationlaboratory, Building 324 . It was buried approximately seven to ten feetunderground between the buildings and the Area I Service Road . The tank wasreportedly installed in 1959 and was used to store fuel oil to operate powe r
• generators during natural gas curtailment .
The tank was excavated and removed on August 26, 1987 as part of
Rocketdyne's Tank Removal Program . A soil sample was collected from thebottom of the excavation and analyzed by the Rockwell International, AnalyticalChemistry Laboratory . Diesel was reported at a concentration of 1,700 parts,per million. Records indicate that soils containing diesel fuel were removed atthe time of the tank removal .
Following the results to the soil sample, the site was referred to the VCEHDLeaking-Underground Fuel Tank--(LI FT) program- (attachmv ent D) ..Consequently, Rocketdyne engaged the services of Groundwater ResourceConsultants, inc . (GRC) to prepare a "Preliminary Site Assessment Work Plan,
HDMSe00024198
Tank #47, Building 324", dated September 25, 1990 (attachment E) . Results tothe subsurface sampling were submitted to VCEHD on March 8, 199 1(attachment F) .
Based on the GRC soil sampling results and a VCEHD correspondence, datedMarch 26, 1991, no further action is recommended (attachment G) .
RESOURCE MANAGEMENT AGENCYEnvironmental Health Department
U cyf VEntura Donald WCKeeop
for the disposal of this soil is not on file . A copy of the
Rocketdyne Division--''Rockwell Internatio
6633 Canoga AvenueCanoga Park, CA 9130 3
The Ventura County Environmental Health Division (VCEHD)- hasreceived Rocketdyne's letter dated April 27, 1990, regarding the
underground tank abandonments . Rocketdyne's request for cleanclosure at sites requiring the submission of additional soilanalysis or cleanup documientation can not be approved at this time .
An evaluation of soil analysis indicates six sites may not be
clean.
The sites where tanks were reported leaking will be referred to theLeaking Underground Fuel Tank (LUFT) program of this office forreview of the information provided . A determination will be madeas to what work is necessary to close backfilled sites . Any
cleanup work must be approved in order to consider site closure .
Based on the submittals, several tanks have been included underabandonment records on file . Further site evaluation is needed toconfirm the correction of tank no 48 to tank no . 53, as discussed
March 20, 1990 ; as we as reconcile the number or tanks remove d
from buildings no. 9, 55, and 59 .
The following is a listing of eachregarding their current status :
Environmental Unit
w
Gary Colbert, Environmental Engineer
analysis received shows contamination . Referred to LUFT .Removed from the building #005 area as tank #403 . Soi l
Tank #1 :
2 . Tank 13 :
Removed from the building #009 area as tank #401 . Soi l
analysis shows contamination" ~aas "present . Remediat`an wasundertaken with VCEHD approval . The hazardous waste manifes t
manifest should be submitted to this office .
o5?2801 South Victoria Avenue, Suite 304 Ventura , CA 93003 (805 ) 654-3
HDMSe00024204
3 . Tank #3 6
states a hole was observed in the tank . Soil analysis are notRemoved from the building #459 area. The abandonment repor t
on file. A copy ofthe soil analysis should be submitted to
this office or samples be taken and analyzed .
Removed from near building 1324 as tank #102 . The soilanalysis showed contamination existed . Referred to LUFT .
Tank #39 ,
contamination was present. This site is referred to LUFT .
and 41 :
Removed from near building #351 . Soil analysis indicate some
6. Tanks #22, 42, and 51 :
Removed August 31, 1987 under abandonment permit #698 . These
tanks were not suspected 'of leaking at the time of removal .
7 . Tanks #48, 51, and
Unable to verify the location of these tanks near buildings204, 206 , and 207 respectively . Further site evaluation i s
needed .
Call to arrange an inspection of sites requiring further evaluationor if you have any questions . You can contact me at ( 805) 654-5038between the hours of 8:00-9 :30 a .m . or 3 :30-5 : 00 p .m ., Monday
through Friday .
UNDERGROUNW-VANK PROGRAMENVIRONMENTAL HEALTH DEPARTMENT
HDMSe00024205
GROUNDWATER RESOURCES CONSULTANTS, MC
t is recommended that three soils borings be drilled in the immediat e
No groundwater monitoring wells are recommende d
e at thi s
It does not appear likely that shallow perched groundwater will be
encountered in the immediate vicinity of the former Tank site ;
2 . Groundwater in the Chatsworth Formation is probably at a depth o f
at least 75 feet and possibly as much 105 feet at the site ;
3 . There
and siltstone) between the former location of the tank
and of the saturated zone the Chatsworth Formation;
There are existing monitor wells around the site which woul d
detect movement of contaminated groundwater ( Figure 1) .
The three soils borings would be advanced with a flight auger drillin g
rig . The approximate locations of the proposed soil borings are shown i n
Figure 2 . The purpose of the soil borings would be the collection of soi l
samples which would indicate the presence and/or extent of fuel component s
in soils . The auger borings would be advanced until auger refusal, that
vicinity of Tank #47 .
is probably at least 65 to 95 feet of bedrock (i .e ., lithi-
fled sandstone
until unweathered Chatsworth Formation is encountered . If perched ground
HDMSe00024206
GROUNDWATER RESOURCES CONSULTANTS, INC_
water is encountered during drilling , one of the borings would be completed
as a monitor well. The monitor well would be constructed
according to th e
d immediately before aAll drilling tools would be thoroughly cleane
boring is started . All casing and screen would be cleaned prior to instal-
L,t alation in borehole . Drilling equipment and casing would be cleaned wi
high pressure steam washer . Representative samples of cement, bentonite and
filter media would be retained for 90 days for possible analysis for con-
taminating or interfering constituents . The well would be completed at land
surface within a vault with a steel lid. The well identification number an d
well type would be affixed on the exterior of the vaul t
with bentonitegrout . - All slurry grouts for borehole abandonment would b e
All borings which are not completed as monitor wells would be sealed
emplaced by the tremie method .
Drill cuttings would be managed as described in Appendix B. All work
contained in Appendix.Fl anwould be conducted according to the Site Safet y
lifornia registered geologistCald be described by aC . All borings wou
using the Unified Soil Classification Syste
During auger drilling, soil samples would be collected at a ,maximu m
five foot interval until auger refusal . Details of sampling procedure ,
sample handlingprotUGOI, and sample analysis methods are
8
HDMSe00024207
GROUNDWATER RESOURCES CONSULTANTS, INC
Appendix D . If perched groundwater is encountered and a boring is completed
as a monitor well, groundwater samples would be collected acc9rding to pro-
sl'LeAfter the results of the investigation have been compiled, a
evaluation report would be prepared . The report would include soil baring
logs, a map of soil borings locations including locations of any undergroun d
utilities discovered during the underground ocator results
analyses of soil samples , and recommendations for additional actions ,
• $640 XTRACTE DPROJECT #PROJECT NAME ROCKWELL/ROCKETDYNE SSFL DATE E
DATE ANALYZED
CLIENT I .D . 005-3 (8-8 .5) DUPLICATE/O7UNITS
SAMPLE MATRIX SOIL DILUTION FACTO R
FUEL HYDROCARBONS
I""UROG PBON RANGE
------------------------ -------
a ~
HYDROCARBONS QUANTITATED USING
HDMSe0002423 2
12/ 12/9012/17/9012/ 11/9012119/9
.0
MG/ KG
--------------------------------
RESULTS
$ca TechnoIogiess€j( CHROMATOGRAPHY - RESULTS
ATI I
ST EPA 8020 (BENZENE, ETHYLBENZENE, TOLUENE, XYLENES)TE 99
CLIENTPROJECT #PROJECT NAMECLI i NT I . D .
SAMPLE MATRIX
BENZENE
DATE SAMPLED J .4 / 1- -.,/GROUNDWATER RESOURCES DATE RECEIVED 12/17/908640 DATE EXTRACTED 12/17/90ROCKWELL/ROCKETDYNE SSFL nATR ANALYZED 12/19/9 0324-1 (4-4.5) UNITS MG/KG
1735 E . FORT LOWELL RD ., SUITE 4TUCSON, ARIZONA 8571 9(602) 326-1898
ATTACHMENT G
RESOURCE MANAGEMENT AGENCYEnvironmental Health Division
Director:ount!J ven `ura WKa e
Rockwell International Corporation
6633 Canoga Avenue
Canoga Park, California 91303
File #C9009 4
ROCKWELL/SANTA SUSANA FIELD LAB, BUILDING 324, TANK 47, WCOLSE Y
CANYON, SIMI VALLEY, CALIFORNIA
This letter confirms the completion of site investigation andremedial action for the underground storage tanks at the above
site. With the provision that the information provided to thisagency was accurate and representative of existing conditions, itis our position that no further action is required at this time .
Please be advised that this letter does not relieve you of anyliability under the California Health and Safety Code or rater Codefor past, present, or future operations at the site . Nor does it
relieve you of the responsibility to clean up existing, additionalor previously unidentified conditions at the site, which cause orthreaten to cause pollution or nuisance or otherwise pose a threatto water quality or public health .
Additionally, be advised that changes in the present or proposeduse of the site may require further site characterization and
mitigation activity. It is the property owner's responsibility to
notify this agency of - any changes in report content, futur e
contamination findings, or site usage .
ou have any questions regarding this matter , please contactIf yMichael C . McFadden of the LUFT program staff at (8 0 5) 654-3522 ,
between the hours of 8 :00-9 : 30 a .m. or 3 :30-5 :00 p . :