RA-1530_9807_CA_RPTS_19900401

ENVIRONMENTAL SITE ASSESSMENT
FOR
I
COMER OIL COMPANY
P.O. BOX 711
ROCKY MOUNT, N.C. 27802-0711
SITE LOCATION
HOLLAND'S GULF STATION
US HIGHWAY 301 AND GOLDSBORO ROAD
WILSON, N.C.
SUBMITTED BY
UTTS ENVIRONMENTAL
218 W. THIRD STREET
AYDEN, N.C. 28513
APRIL, 1990
ENVIRONMENTAL SITE ASSESSMENT
FOR
J COMER OIL COMPANY
P.O. BOX 711
ROCKY MOUNT, N.C. 27802-0711
SITE LOCATION
HOLLAND'S GULF STATION
US HIGHWAY 301 AND GOLDSBORO ROAD
WILSON, N.C.
SUBMITTED BY
UTTS ENVIRONMENTAL
218 W. THIRD STREET
AYDEN, N.C, 28513
'''••OHIO***
APRIL, 1990
INTRODUCTION
At the request of Mr. H.C. Shearin of Comer Oil Co., UTTS
Environmental was contracted to conduct an environmental site
assessment at Holland's Gulf Station in Wilson, N.C. The site
is located on the north side of the intersection of US Highway
301 and Goldsboro Road in Wilson, N.C.
Previously, UTTS, Inc. had conducted an Underground Storage Tank
(UST) abandonment investigation at the site. During this
investigation minor soil contamination was found within the UST
pit at one location. As a result of UTTS, Inc.'s findings, UTTS
Environmental was contracted by Comer Oil Co. to install three
monitoring wells to check for groundwater contamination.
UTTS Environmental conducted an initial site assessment only for
the Holland's Gulf site proper. No attempt was made to
characterize offsite conditions. The investigation included the
following:
1) Characterize the shallow subsurface geologic conditions.
2) Characterize the lateral and vertical extent of
contaminants (free product and dissolved components).
3) Sample groundwater for Total Petroleum Hydrocarbons (TPH)
and Benzene, Ethylbenzene, Toluene, and total Xylenes
respectively .
4) Proposed recommendations for further work and/or Remedial
Action Plan.
SITE HISTORY
The referenced facility previously contained eight (8) UST's
containing gasoline, diesel, heating oil, and waste oil. UTTS,
Inc. was contracted to obtain soil samples from the tank beds
for proper UST abandonment. Abandonment is to be by exhumation
and in place foaming.
Soil samples were analyzed in-house by the Hanby Analytical
method for TPH, and with the exception of one (sample #1), all
showed clean or less than 5 ppm. One duplicate of sample #1
(#1A) was sent to Environment 1, Inc. of Greenville N.C. for
analysis of BETX.
The Hanby analysis showed 100 ppm TPH. The analysis for BETX
(Benzene, Ethylbenzene, Toluene, and Xylenes) indicates <1299
ug/1 for all of these parameters (<5196 ug/kg total BETX).
These numbers are misleading because the results are reported on
a wt/wt basis. Within the formula for obtaining the final
numbers, there are various correction factors (i.e. % water,
etc.). This, coupled with the fact that such a small amount of
material is used in the analysis (1-2 g), to make up the
reportable amounts (reported in kg) this total amount is grossly
inflated, roughly by 1,000 times. All individual parameters are
in actuality equivalent to <1 ug/1 as reported for liquids,
resulting in the same number in each column. Therefore, there
was no BETX detected in the sample. -
Since no BETX was detected in Environment I's analysis, it may
be assumed that the 100 ppm detected in the Hanby method is
composed of heavier, unidentified hydrocarbons.
Methyl Tertiary Butyl Ether (MTBE) was present in the sample
sent to Environment 1, Inc. (832,000 ug/kg). This with the
correction factors equates to 208 ug/1 as reported for liquids.
The presence of MTBE and the absence of BETX is unknown at this
time .
Comer Oil Co. then contracted UTTS Environmental to conduct a
groundwater assessment at the site. UTTS Environmental installed
three monitoring wells to check for contamination outside the
UST pit. This report discusses these findings.
FACILITY DESCRIPTION
The referenced tract of land is located at the intersection of
US Highway 301 and Goldsboro Road in the city of Wilson, N.C.
The property is bordered on the east by a Goodyear tire center .
City water and sewer are supplied in the area. Topographically
the area drops rapidly from front to back, approximately 10
feet. The included site location map shows the location of the
site in relationship to the Wilson area. The included site plan
shows the property boundary, location of buildings, and
monitoring well locations.
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Us^E NVIRONMENTAL
yBm
.'! 87
XrGontentnea I —""yunction
1 -
218 W. Third Street
AYDEN. NORTH CAROLINA 28513
919-355-5138 919-746-2046
SITE LOCATION MAP
WILSON, NC USGS 7.5* QUADRANGLE
CONTOUR INTERVAL = 10'
V
/ ■/
I t
' I
J
SITE ASSESSMENT FOR UNDERGROUND STORAGE TANK
ABANDONMENT (in place) For;
Comer Oil Co, Rocky Mount At
I J
( \
Hwy. 301 & 301 A, Wilsoo, N.C.
Job #118-33-89003
©-HOLE #7
HOLE #6 - ®
STATON
TANK #1 2000 GAL
GASOLINEH0LE#1 -®HOLE #2
HOLE #3
2000 GAL.
OPERATIONAL
1000 GAL
OPERATIONAL
TANK #2 3000 GAL
DIESEL - HOLE #4
Sample Location
LOT AREA-
254' Depth; 260' Width
1 mm s 1 ft
* Footage is not to
scale unless speaHed
NOTES:
All Holes are Approx
3' From End of Tank
10' Depth
6" into Water TalDle
REGIONAL GEOLOGY AND HYDROGEOLOGY
Wilson is situated in the eastern Coastal Plain Physiographic
Province of North Carolina in central Wilson County.
The Coastal Plain Province is composed of exposed non-marine to
marine sediments and sedimentary rocks of Cretaceous to
Quaternary age. In Wilson County these include from youngest to
oldest: Quaternary surficial deposits; Pliocene Yorktown
Formation; and Cretaceous Cape Fear Formation.
The Cretaceous Cape Fear Formation is less than 20 ft thick at
Wilson, if it is present at all and dips to the E-SE at 5
ft/mi. This unit represents continental (fluvial) gravels,
sands, silts, and clays formed at the landward edge of a major
delta complex prograding eastward from the crystalline rocks of
the Piedmont. This is not a maj'or aquifer in the Wilson area
but it becomes important in eastern Wilson Co.
The Pliocene Yorktown Formation typically consists of massive,
blue to gray marine clay and sandy clay, marl, sandy gravel, and
clayey sand. This unit ranges from 0 to 30 feet thick in the
area and dips to the east at 4 ft/mi. The high clay content
makes this unit a poor aquifer in the area, but it does act as a
confining bed and a recharge source (leakage) for the underlying
Cretaceous Cape Fear Fm.
The Pleistocene terrace deposits consist of silt and silty sands
characteristic of sheetwash and braided stream deposits. These
deposits are thickest in the interfluve areas and are typically
20-30 ft thick in the Wilson area. These may lie directly on
saprolite (weathered rock material) or older sedimentary units.
The terrace deposits make up the bulk of the domestic wells in
Wilson County but as these are surficial deposits they are also
subj'ect to contamination due to septic systems and agricultural
activities.
SUBSURFACE INVESTIGATION AND SITE HYDROGEOLOGY
The site geology was determined by installing three (3)
monitoring wells around the UST pit. In the area there was 3"
of topsoil or asphalt followed by 0.5 ft of crushed rock. Below
this there was 3.5 ft of red, sandy clay; 4 ft of sand; 2 ft of
soft clay; and 4 ft of stiff clay.
After monitoring well completion, purging, and groundwater
sampling, the water level in the borehole was allowed to
equilibrate. The tops of the wells were surveyed to obtain
spatial distribution and elevation above Mean Sea Level (MSL)
for the top of well casing. An assumed benchmark of 135.0 ft.
MSL was chosen from the Wilson, N.C. USGS 7.5' topographic
quadrangle map. Static water levels were measured from top of
well casing with a tape and leaded "plopper". Monitoring wells
(MW-1, MW-2, and MW-3) were used to obtain groundwater flow
direction and hydraulic gradient (dh/dl).
Groundwater flow is W-NW, toward the rear of the lot and toward
Goldsboro Road. The calculated hydraulic gradient (dh/dl) is
2.98 ft/49.50 ft or 0.06 ft/ft.
Features that may affect local groundwater flow patterns is the
backfilled UST pit and underground utility trenches. Depending
on the backfill material in the utility trenches, these may
impede or enhance flow, act as a conduit, and/or change flow
direction.
NORTH CAROLINA DSPAniMEKT Or NATURAL RESOURCES AN'O COMMUSITV Cc.v~LOPJ.'-cri i
DIVISION OF ENVIflONJ.'.ENTAL f-UHAGEMENT - GRC.'f.'OWATER 2 = ,^tIC'i
P.O. BOX 27687 - RALEIGH.N.C. 2701 1. PHONE [phone]
V/ELL CONSTRUCTION RECORD
/
FOR OFFICE USE ONLY
Quad. No.
Lat
Serial No
Long.
Minor Basin .
Basin Code .
Header Ent..
- Pc.
GV/-1 Em.
DRILLING CONTRACTOR U -^<L-
DRILLER REGISTRATION NUW3ER —llILQ-
STATE WELL CONSTRUCTION
PERMIT NUMBER: 'O^OO'Wm
1. WELL LOCATION: (Show skelch oI ihe iocaiion islov/)
Nearest Tovm; J/JiIsOA/Cc.-.ty: _
LOl NoJ
n,..y r
(Rocd, Coirimuniw. or Suioivision and
. 0V7NER .
Oeplh
•fcrr;10
DRilLING LOG
Formafjon Osscripiion
address P.r). p^y 7/1
CS:/s9l or Rouis No.)l.b:/s9i or Kou,;/^ArJ^y/Th/^ ^ nC
c/-,' c: Town Stsls' Staii
j'ys'os.
n'
-.25't -so'
-y'
452>MLr
izoac
3. DATE OKILLSO Jl'
/V'<. TOTAL depth
Ccc5 ^-7-
^ USE OF WE.L PA^ed. -V "8■JTTINGS COLL£CT = 0 'JVss ^ No —& 4 "IC
r-3 'lO' -/V: t.vri t 7 I J Yis ;'''3 '
■£W/N/oy riAf
j. DOES WELL nEFlAC-E i>:iST:KG WELL? D Vij ^ n:
PT. "C." 0." C--.a;NG.5
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. STATIC WATE.P LEViL:
TOP OP CASING \y
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c. w.aTER zones (oejih): !^
V.
FT. A50V£ LAND SjPtACi.
ETHOD 0.= T£ST
-S. CHLORIMAilCN: syp5 ! n Amc'."-:
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rfChI
Fro-Ti
.-.'ili T.-iC-'.-rsSOiameier :• v.'?;:-*:."-'jisriai
,rl..
!i acrH.onal soace is needed '.-ss bad: o' icr.Ti,
LOCATION SKETC.H ^ /
(S::.v cif and cisiancs 'rom sj ieasi iwo S'.z'.i Roads,
Of :;nsf r.-z -eierencs poinis'
^fOr;.
1 •. G.PO'JT:
— i; ■-1.—. ■ ——
tO
Oep:.-, Mct-.s",;2 E, 5e^e^-h ^uf^ecf
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12. SCREE.N:
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From in
in
13. GRAVEL PACK:
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Meiefifii
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From.Tft Ft.
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//^y- 30 (
l< REMARKS:
00 HEREBY CERTIFY TK/,T THIS WSU WAS Cdi^^CTEO !N AC^ROakCE^ WIT^H . 5 nCaC 2C. WELL COK'STRUCTiONITANOA.ROS. AKO that A CORY OF THIS R£C0R0y<^3=W ° /"jj-fs- ^ O -
T'S Cr ccntractop op aqct DATF
NOKIH CAKUUNA USt'AMIMSI.l ur .•« -•
DIVISION OF ENViaONMcMTAL I.WNAGuMENT - GFCJ^VOV/ATE:?? ScvICN
P.O. BOX 276S7 - RAL=IGK.N.C. 276U. PKDNH (919)733-32^1
V/ELL CONSTRUCTIOM RECORD
DRILLING CONTRACTOR .
^ moDRILLER REGISTRATION NUMBER
FOR OFFICE use OI-{LY
Ouad. No.
Lat
Serial No.
Long.
Minor Basin ,
Basin Code .
Header Ent..
Pc.
GW-1 Eal.,
STATE WELL CONSTRUCTION
PERMIT NUMBER: Q7"
\. WELL LOCATION: (Sho-.v sketch of the location isiov/)
Nearest Tovvn; JSO/7—Co.-nty;
y 3^/A—-
(Road. Communhy. or Si-'CO'vis'O.n and Lot f*olliv, cir^ uvi 1'w
Depth
Frc.T.I 0./
2. ov/NER r^0/*1CX' f)tl )
. OORESS f9. 7/ ^ . .
/I I (Street or Roy'j^Nc.) ^ " VMocky /A^xnr, nC—<pHo:2,— _ /
C'-" o''ov.Ti Slati ^—— ——
3. cate OP.ILLSO 3-23^-'7£> USE 0= V.EJ.
<. TOTAL DEPTri /'^' CUTTINGS COLLECTEC J Vss ^ No ' 1° ^ 'H
0. DOES WELL PEPLACE ETiSTING WELL? D "ii ^
5. STATIC WATER LEVEL: // FT. G TC= OP C^SiNG.
TOP OF CASING 15—^2 FT. AoOV= LAN-,-
7. ■'■lELO (QPt^A I"
£. V/.ATER ZONES (cecih}; M
'.: = TH0D of T£ST
DRILLING LOG
Formation Osscription
Cli4'Y f
^
(TiAjJ)Er^SE
5. CHLORIMATION:
:C. CASING:
Amc.*:
Oiameier i.'s tarig!
rfon-
From
Frorr.
15. G.'.O'JT:
ii-
1 ^
7c
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!i scr-t.c.nal soece is needed ess back of Ic-.-.m.
LOCATION SKE'C:-:^
(S::.v cirs:: c- and distance from a: Isasl tv.-o Sta'.s Road?
Of ~:z •sfersncs ooints?
^tfe/2- -4x3 SiCf-kk
Fro. _Q_!TcZ^^L- 0 'Fro.^2L_Toj:l_PL.^&dWr <1
\l. SCREEN:
Depth
From -?'Tc '[3 F
Tn r
From Tn f;
Diameisr Slot S'se fV.atsnai
:n.
in.
in.
in.
13. GRAVEL PACK;
Oeptr. , Sici-V TO-//FI. gr^v^AFrom,
From.
1 <. REMARKS;
To.Fl.
I 00 HERESY CERTIFY THAT THIS v.'EiL WAS Cstanoahds. and that a copy of this RECOR"
:-E0 IN aCJCRDak'CE Vs'ITH t5 NCAC 20. V/ELL CONSTRUCTION... „-/-Yr/> T.rs OWNER, ^
- /!77T :z^r.
S1GNATU.=E Q? CCNTRACTOR OR AGENT DATE
I ... niv--'-*? o! Cp,..-irrl cA v 10 ''•••'*" ovn"'
north CAROUNA D£PARTMEI>'r Uh ^mu . wctw^rmc,
DIVISION Or ENVlROIil.'.cNTAl. MANAGGMENT - Gr.C'JJ'OV/ATE?- SSCTICN
P.O. BOX 27637 - RALSIGI^.N-O. 27611. PHOMc (919)723-32 21
WELL CON'STRUCTION RECORD
FOR OFFICE USE ONLY
Quad. No.
Lat
Serial No.
— Long.
Minor Basin .
Basin Code .
Header Ent..
Pc
GW-1 Em.
ORIULING CONTRACTOR U TTT-
DRILLER REGISTRATION NUMBER mo
STATE WELL CONSTRUCTION
PERMIT NUMBER: ^7- O
1. WELL LOCATION: (Show sketch of the location balov/)
Nearest Tov/n: LaJ /L6iO
y 3o( 4 ^
Cc.nty:
Oepih
Frcrr. To(Road. Communiiy. or Sucoivisio."! and Loi No.) ^
2. OVNER ^ 7—( Car'^£^ Olc. ^ .
P.O. f>OS / '"5;. 'Sireel or Rouis c>o.) o-rri^ ^ -t -V
jp^dc.^ /yicLur-f- % ni a
Ciiy^rTown sTaia i'P C^e S_
' 'S ^ -lo'
^//\i3. O.ATE OKILLHD J--P-O-^0 USE 0= Wi.L ■10'
DRILLING LOG
Formation Dsscrioiion
r )J/ OMj
<. TOTAL D5rT.-:_Ji/^ CUTTINGS COLLiCTED □ Yes ^ No
i. DOES WELL REPLACE E>;iST:;-:G V.'ELL? Q Yii ^ N"-
5. STATIC water LEVEL: _Z4^ P". <0.= 0.= CASING.
TOP OF CASING !5 ^ FT. ASO'-'E L-AND SJ:RFACi.
7. '■'lELO I.'.ETHOD OF TzS;
£. WATER ZONES (osPih}:
rjAj
■<■ -/V
S. CHLORINATION:
•C. CASl.NG:
Ty?=T3
Diameter v.'?:;*:■'-'irsnaiM/d T-P:.
From «.Fl.
;OUT:
De:;n
15 Fl.
From -y T.-3 Fl.
C
I: a:: •..cnal spece is needed bac'-: oi form.
LOCATION SKETC:-:^?
(Sr:-v cire::.;- and ciitsnce from a: leasi two Sia'.s Roads,
or ;:-5r ni .-iiererics ooints)
PefetL, -h Sl<£-izJs ^1
12. SCREEN:
From -2'Oepih
To 13 p,.
"c Fi.
From _To F:
Diameter Slot Size Material
:n. ^
in..
in.
in.
13. GRAVEL PACK:
From.
From,
t<. Rth/ARKS:
Oeoth Sii? Material~3' To-// Fl. 8 IrfC/f 6Mo
Fl.
I 00 H£.=£5Y certify "HAT THIS WE'l WAS CCNSTP.UCTcO IN ACCCROAN'CE NCaC 2C. WELL COK'STRU'., f lON
SGNaTuP.E CP CONTRACTOR OR aGENT DATE
..., n.-.L'i-ri n: acemini and coo." 'o w«jn o^ne/.
SAMPLING AND DECONTAMINATION
After purging the wells of three well volumes with a bailer,
groundwater samples were obtained with a Teflon bailer.
Groundwater samples were placed in 40 ml clear borosilicate
vials with a Teflon coated septum and each sample labeled and
placed in separately labeled zip lock plastic bags. These were
kept on ice until delivery to the laboratory.
Bailers were decontaminated in the field by the following
method•
1) Tap water rinse.
2) Wash with tap water and non-phosphate detergent.
3) Tap water rinse.
4) Distilled water rinse.
5) Pesticide Grade Methanol rinse.
6) Air dry.
Drilling equipment was decontaminated using a portable steam
generator and a methanol rinse before advancing to the next
drilling site.
DISSOLVED COMPONENT CHARACTERIZATION
Water samples were obtained from the the three monitoring
wells. These were sent to Southern Testing and Research
Laboratories in Wilson, N.C. for analysis of Benzene,
EthyIbenzene, Toluene, total Xylenes, and for Total Petroleum
Hydrocarbons (TPH). The results for the analyses are presented
in table form below.
PARAMETER MW-1 MW-2 MW-3 NC STD
Benzene <1 <1 <1 1 ug/1
Ethylbenzene <1 <1 <1 29 ug/1
Toluene <1 <1 <1 1,000 ug/1
Xylenes <3 <3 <3 400 ug/l
TPH <30 <30 <30 ug/i
NC STD. = Title 15, Subchapter 2L, Classification And Water
Quality Standards Applicable To The Groundwaters Of North
Carolina.
From these data, the groundwater does not appear to have been
impacted as a result of an unauthorized discharge of petroleum
products.
SOLITHLIRM TC'5TIMG AND RESEARCH L ARORA FOR IES , INC.
P.O. BOX 1B4P -- C07 PARK AVENUE WILSON, HC 27893
PHONE [phone]
REPORT OF ANALYSIS
LAB sample NO.(s): 314M1-3
DECEIVED f-ROM
NAN
>RG
^00
BRIAN GRAY
UTTS ENVIRONMENTAL
-^18 WEST THIRD STREET
AYDEN , NC 28513
>ANPLE(s> of: WATER P0^tl88851
NARKED A: MW-1
C: MU-3
SAMPLE/TEST NO.
ANALYSIS
Crx PURGLABLES
BENZENE
ETHVLBEN2ENE
TOLUENE
XYLENES
TOTAL TPH
^uNxrs,
( rno/L )
(mg/L )
(mg/L )
(mg/L )
(mg/L)
DATE OF REPORT: 90/04/03
DATE RECEIVED : 90/03/12
ACCOUNT NO.: 93275
lELEPHONE :
HOLLANDS GULF tt07-E005-0001
B: MW-2
D:
314M1 B: 314M2 C: 314M3 D
< .001
< .001
< '. 001
< .003
< .030
< .001
< .001
< .001
< .003
< .030
< .001
< .001
< .001
< .003
< .030
-.OMMENTS :
I.AG USE '.WLY
Analysts: gs
'FCKUP: N RUSH: N
(IME: MILES:
; D:
Rev.iewed '^nd Approved
Name: Th®fnas A. lean, Jr., Ph.i.
Title: Manager, Environmental
1 /:/•;(iUHLIFY SERVrCE AT A FAIR PfUCF"
RECOMMENDATIONS
Based on the findings of the three monitoring wells, there
appears to have been no contravention of groundwater at the
site. The location where UTTS Inc. found soil contamination is
the location of the UST to be abandoned in place and filled with
foam. This is due to close proximity to the building and the
in-use UST's. In~place foaming will prevent any future problems
that may have been associated with this UST. UTTS Environmental
therefore suggests that no further action be taken at this site.
p/e^e_ a/
cdi Co.
LIMITATIONS
The purpose of this investigation was to assess the existing and
potential environmental concerns and liabilities associated with
the subject site. The conclusions presented in this report are
based only on the observations made during the dates of the site
visits and should not be relied upon to represent site
conditions on other dates. The report presents a description of
the subsurface conditions observed at each boring location
conducted during this investigation. Subsurface conditions may
vary significantly with time, particularly with respect to
groundwater flow, elevations, and quality.
Should any additional data become available, these data should
be reviewed by UTTS Environmental and the findings presented
herein modified, as appropriate.
RECEIVED
MAY 3 1195)0
micm REGiorML office