United States
Environmental Protection
Agency
Office of
Emergency and
Remedial Response
EPA/ROD/R04-86/016
September 1986
Superfund
Record of Decision
Pioneer Sand, FL
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TECHNICAL REPORT DATA
(Pteas~ ,ead l,ur11JcI/O'U 0" lh~ 'e~'erre befo,e co,""tew1fJ
1. REPORT NO. 12. 3. RECIPIENT'S ACCESSION NO.
~PA/ROD/R04-86/016
".TITL.E ANO SU8TITL.E 5. ~EPORT OATE
SUPERFUND RECORD OF DECISION ~.,.ntembe~ 26, 1986
Pionee~ Sand, FL e. PERFOFIIMING ORGANIZATION cooe
7. AuTMORCS) 8. PERFORMING ORGANIZATION REPORT NO
9. PERFORMING ORGANIZATION NAME ANO AOORESS 10. PFIIOGRAM EI..EMENT NO.
11. CONTRACT/G~ANT NO.
12. SPONSORING AGENCY NAME ANO AOORESS 113. TYPE OF REPOFIIT ANO PERIOO CO\lEFlE'::
U.S. Envi~onmental Protection Agency F;"al ROD ReDoct
401 M St~eet, S.W. 14. SPONSORING AGENCY COOE
Washington, D.C. 20460 800/00
15. SUPPL.EMINTARY NOTES
16. A8STRACT
The Pionee~ Sand site, owned by the Pioneer Sand Company (PSC), is an inactive
ll-acre quarry located near Belleview, FL. A disposal pe~mit was granted to PSC .in 197
which aillowed the disposal of ine~t mate~ials including construction deb~is and
shredded automobile strippings. Between 1974 and 1978, phenols and resin compounds ',o/e~E
depos ited f~om Newport Indust~ies (currently Reichhold Chemical Company). Domestic and
industrial wastes including metal plating sludges were also ~eceived from the Pensacola
Naval Air Station. App~oximately 75 pe~cent of the site is an excavation pit, wh il e th
remaining 25 percent is a fill a~ea consisting of the above-men tioned materials. In
1981 the Florida Depa~tment of Environmental Regulation did not ~enew the disposal
pe~mit and orde~ed the waste dumping practices to cease. 9ased on the RI ~esults for
PCB analysis of soils at the site, the EPA conducted an Immediate Removal Action in
August 1986. All known a~eas of PCB concentrations g~eater than 50 ppm we~e ~emoved.
The p~imary contaminants of concern include: VOC s, o~ganics, heavy metals, phenols,
phthalates, and toluene.
T!1e selec.ted ~emedial action for the site includes: RCRA Subtitle 0 landf ill
closure: leac!1ate collection, t~eatment, and onsite disposal: surface wate~ t~eatment
and onsite discharge: and cover system for sludge pond waste. The estimated capital
cost is $462,025 with O&M costs of ~45,000 fo~ the first year, and $34,900 for yea~s
2-30.
17. KEY WOROS ANO OOCUMENT ANAI..YSIS
a. OESC"IPTORS b.IOENTIFIERSiOPEIII ENOeO TERMS c. COSATI Fleld;Group
Reco~d of Decision
Pioneer Sand, FL
Contaminated Media: soil, sw
Key contaminants: VOC s, inorganics,
heavy f:tetal s
18. OISTRIBUTION STATEMeNT 19. secuRI TY CL.ASS I Tills Reponl 21. NO. OF ;>.a.GES
I None 85
20. SECuRITY CL.ASS ITlris pagel 22. PFIIICE
None
!I'. '0'''' 2220-1 (R.... '-77)
II".VIOUS IEOIT.OH.S O..OI..IETI:
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REn)RD OF DEX::ISION
REMEDIAL Al.1I'ERNAT IVE SELECI'ION
srrE
Pioneer Sand Cat1pany, Warrington, FL
rx::x:tf.!ENl'S REVIEWED
I am basing II„ decision primarily en the follCMing documents describing
site specific conditions and the analysis of effectiveness and cost of
the renedi.al al ternati ves for the Pioneer Sand Site:
o
Remedial Action Master Plan - Pioneer Sand Site
o
Site Investigation - Pioneer Sand Site
o
Feasibility Study, \blumes I and II - Pioneer Sand Site
o Agency for Toxic Substances and Disease Registry - Health
Assessment - Pioneer Sand Site
o Agency for Toxic Substances and Disease Registry - Review of
Additional Soil Samples - Pioneer Sand Site
o
Department of the Interior - Natural Resources Damage Assessment
Pioneer Sand Site
DESCRIPI'ION CF SELEX:TED REMEDY
o
Proper landfill closure of fill and sludge pond areas
under Subtitle D of RCRA and Olapter 17 -7 of the
Florida Administrative Code.
o
Installatien of an onsite leaChate oollection, treatment,
and disposal system.
Q
Onsite treatment and disposal of sludge pond waters.
o
Operaticn and Maintenance (O&M) activities will include:
o naintenance of landfill cover:
o naintena.nce of leachate collection
system and sludge renovals:
o grcunClwater ncnitaring.
Additional O&M activities may be identified during the remedial design.
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DEX::IARAT IONS
Consistent with the Catprehensive Environmental Response, Carpensation,
and Liability Act of 1980 (CERCIA), and the National Contingency Plan
(40 CFR, Part 300), I have determined that the a1::.ove desex iption of the
selected renedy far the Pioneer Sand Site is cost-effective and provides
adequate protection of public health, welfare, and the environrrent. The
State of Florida has been oonsulted and agrees with the approved remerly.
These activities will be considered part of the approved action and
eligible far Trust Fund m::>nies should the responsible parties fail to
undertake the design and implementation of the selected remedy.
I have also determined that the action being taken is appropriate When
balanced against the availability of Trust Fund Ironies for use at other
sites. In addition, the selected remedy is IIDre cost-effective than
other ranedial actions, and is necessary to protect public health, welfare,
and the environment. All off-site disposal shall be in a:npliance with
the existing policies of EPA. .
If additional remedial acticns are determined to be necessary, a Record
of Decision will be prepared far approval of the future remedial action.
DM'E
\.M£~
Jack E. Ravan
Regional Administrator
SEP 2 6 1906
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SEX:TION I
SITE LCCAT IOl';
AND
DESCRIPTla-:
The Pioneer Sand Site is located near the to.NT1 of Be 11 ev ieo.v , approxirrately
five miles northwest of the City of Pensacola in the extreme western
portion of the Florida Panhandle. A Naval Air Base, Saufley Field, is
located less than 1/2 mile northwest of the site. Perdido Bay is located.
approximately 2 miles southwest of the site (Figure 1, Location Map and
Figure 2, Site Map). The site' s approximate geographic coordinates are
300 27' 3D" north latitude and 870 19' 45" west longitude.
The Pioneer Sand CaTpany is an inactive sand mining facility. The area
of concern is an inactive 1l-acre quarry, o.NT1ed by the carpany, into ...mich
shredded auto parts, construction debris, and various industrial sludges
and resins have been deposited. Approximately 75% of the site is an
excavation pit, while the remaining 25% of the site is a fill area
consisting of the mater ial mentioned aOOve. The excavation pit extends
to a maximum depth of about 30 feet. A surface inpc:\mdment and a quarry
pond are located in the excavated area.
The aquifer of concern underlying the Pioneer Sand Site is the Sand-and-
Gravel Aquifer. This resource provides' the only potable groundwater
available in the area. Results fran the Remedial Investigation indicate,
at this tiJre, that no private wells near the site are contaminated;
furtherrrore, additional protection is provided in :that alJrost all of the
residents in the vicinity of the Pioneer Sand Site are on a P-lblic water
supply from a deep well located awroxiITately one mile southeast of the site.
-------
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SECTIOt-; II
SITL HISTORY
Fran the mid-1950's until 1978, the Pioneer Sand Pit was used as a oorro.v
area for supplying sand to construct roads, buildings, etc. A Class III
disposal permit was granted in 1974 which allo.ved the disposal of inert
materials including construction debris and shredded automobil~ strippings.
According to the files I during this Period. various types of phenols and
resin compounds were deposited £ran Newport Industries (currently Reichhold
Chemical Ccrcpany). D::mestic and industrial wastes including metal plating
sludges were also received fran the Pensacola Naval Air Station.
In 1981, the Florida Department of Ehvironrrental Regulation decided not
to renew the disposal perrni t and ordered that the d1.lI1'ping of waste ceas at
the site. By this time, approxilrately one-fourth of the ll-ac:re pit had
been backfilled to the original land surface with fill material.
In late 1981, a preliminary contamination survey was ccnducted to evaluate
the extent of ccntamination at the site. Al though elevated levels of
various metals and organics were found, the sanpling of private wells in
the area sha.ved no appreciable contamination when cx:rrpared to the background
water quality for the area.
Based on the Remedial Investigation (Rr) results for PCB analysis of
soils at the site, the EPA conducted an :irrmediate rerroval of PCB contaminated
"hotspots" at the site on August 6, 1986. All Kno.vn areas of PCB concen-
trations greater than 50 ppn were removed.
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SECTION III
CURRENT SITE STATUS
INVESTIGATION RESULTS
The Remedial Investigation (RI) consisted of collecting over 220 samples
that were collected in various media on and offsite (Figures 3 and 4).
Field screening technigues were used to guide in the selection of samples
for Hazardous Substance List (HSL) scans. As a result of the field
screening, 54 samples were analyzed for the 129 Priority Pollutants.
The RI was conducted in late 1984 and early 1985 and its main purpose was
to assess: the types of contaminants present at the site; the lateral
and vertical extent of contamination; the rate of movement of contaminants;
contaminant pathways away from the source (fill material); and the
potential impact upon the residents. The following general findings
resulted from the Remedial Investigation.
1) Within the fill material onsite, a wide variety of Priority Pollutant
volatile and semi-volatile organic compounds and various Priority
Pollutant metal concentrations were found in soil and water samples
obtained from near surface and at shallow depths within the fill (Table
1).
2) The site is underlain by a shallow aguifer, 20-50 feet in depth, and
a deeper sand aquifer from 80 to 250 feet in depth. Flow in the
shallow aguifer is toward the south at approximately one to two feet
per day. Flow in the deeper aguifer is toward the west at less than
one foot per day (Figures 5, 6, 7, and 8).
3) One well installed through the fill material (8A) and completed beneath
the fill in a semi-permeable confining bed, had concentrations of metals
and organics well in excess of drinking water standards. Additionally,
a leachate sample obtained from a fill material seep contained lead
in concentrations exceeding the primary drinking water standard;
cadmium in concentrations approaching the primary drinking water
standard; and phenol, ethyl benzene, and toluene in concentrations
exceeding 100 ppb. This sample represents leachate that is migrating
into the sludge pond area (Tables 2 and 3).
4) None of the monitor wells (7 shallow, 4 deep) around the perimeter of
the site had any indication of contamination attributed to the disposal
activities of the Pioneer Sand Site.
5) Fifteen nearby private wells were screened for volatile organics and
seven were selected for complete Priority Pollutant analyses. No
contamination was found in any of the nearby private wells. Additional
protection is provided in that almost all of the residents in the
vicinity of the Pioneer Sand Site are on a public water supply drawing
from a deep well located approximately one mile southeast of the site.
-------
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-------
Table 1.
Onsite Contaminant Profile.
Highest A-n:-Jient
Concntration Co;)centrat i;:)';
Med i a Contaminant in Medi llTI of Contaminant
(rrg/kg) (m;;/k:;;)
Sl Lrlge Cadm i llTI 13.2 1
II Copper 942 14
II ChrCJT1illTl 106 36
II Lead 217 14
II Nickel 60.7 13
II Zinc 7479 36
II 2,4 Dichlorophenol 2.52 0
II Phenol 6.55 0
Onsite Surface Soil Cadmi llTI 94.1 1
II Copper 25,851 14
" ChrCJT1illTl 201 36
II Lead 4,380 14
n Nickel 475 13
" Thalli llTI 53.7 0
" Zinc 16,025 36
II Benzo (a) Anthracene . 1.2 0
II Benzo (b) floorathene 1.7 0
" Benzo (k) flooranthene 1.3 0
" Benzo (a) pyrene 1.9 0
II Benzo (ghi) perylene 1.5 0
II Benzidine 1.0 0
II Bis (2-ethylhexyl) phthalate 72.9 0
II Butylbenzylphthalate 43.3 0
II Chrysene 0.9 0
II Di-n-butylphthalate 52 0
II 2,4-Dinitrotoluene 1.9 0
" Diectylphthalate 2.6 0
II Flooranthene 3.1 0
n Indeno (l,2,3-cd) pyrene 2.4 0
II pyrene 3.7 0
II Phenol 1.5 0
II Chloroform 1.3 0
" 1,1 Dichloroethene 0.1 0
II Methylene chloride 0.8 0
II Benzene 0.2 0
II Ethylbenzene 1.8 0
II Toluene 1.1 0
II Xylenes 0.6 0
II Mechlor 1242 410 0
II Arechlor 1248 51 0
II Arechlor 1254 19 0
-8-
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-13-
-------
Tajle 3.
COilcent::-a:io~ of Ino::-:;c::-.ic Cor.tcr..in.:::::s ii, Le3C~.=:>2.
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-14-
-------
6)
Extraction Procedure Toxicity analysis of fill material s~~les
revealed the presence of cadmiUICi and lead. In one sa.rpple, thE: cad;..itr.1
(0.63 mg/l) and lead (4.11 mg/l) concentrations found in the fill
material approached, but diG not exceed, the concentrations which wodd
designate the fill material as a hazardous waste (1. 0 rrc /1 and 5.0
mg/l) respectively (Table 4).
In sumrary , extensive investigations conducted at the Pioneer Sand Site
(chemical, hydrological, and geological) confirm that the contaminants
dunped at the Pioneer Sand Site fran 1973 to 1979 have not migrated off the
site. Factors favoring the imrobility of contaminants include: 1) the
clay spoils covering the contaminants wtrich greatly limit the arrount of
flushing of chemicals into the groundwater; 2) relative leM penneability
of the fill material which acts as a deterent to later~l groundwater
flON'. Tht:re is evidence that groundwater inflON' tONards the site is
deflected around the fill material rather than migrating through the
site; 3) lack of surface drainage features away £ran the site, Le., lack
of chemical transport via streams away £ran the site; and 4) the high
volatility of the rrore ITObile organic carpounds which tend to "volatilize"
in extremely short distances.
-15-
-------
I
.....
0'1
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-------
SF:CTICN IV
F.N~RCEMF,NT ~~ALYSIS
The Pioneer Sand Site received waste from several sourc~s during its years
of operation. The Naval Air Station in Pensacola, Florida, has been
identified as the source of the RCRA hazardous waste found at the Site.
On or about August 4, 1977, the owner and operator of the facility, Mr.
walter OUgyer, was awarded a contract by the U.S. Navy to clean the dornP.5tic
and industrial waste water treatment sludge dryiny beds at NAS Pensacola
and at the outlying landing field at Saufley, Florida. This slLrlge was dumpej
at the Pioneer Sand Site. Other wastes at the Site ~re received from
ReichOOld Chemicals, Inc., and Auto-Shred. Mr. D.xJger signed a consent
judgment with the Florida Department of Environmental Regulation (FDER)
in March, 1983. The judg'rrent states that the owner, Mr. D.xJger, agrees
to help with "all testing and cleanup activities at the site" in any way
he can and, upon the completion of the remedial activities, the Site will
be sold and the proceeds used to pay for the cleanup. Ho~ver, it will
be several years before the Site can be sold. Mean'ltlile, the EPA has the
enforcement lead for cost reUnbursement.
DJring 1983 and 1984 the EPA negotiated with the Navy and ~ichhold,
potentially responsible parties (PRPs) , regarding PRP conduct of the
remedial investigation and feasibility study (RI/FS). The parties ~re
unable to reach agreement and in March 1984, EPA proceeded with a Oooperative
Pigreement with the Florida Department of Envirormental Regulation for the
RI/FS at the Site. Recently the Navy has indicated it would agree to
participate in the remedial activities. ReichOOld has also expressed
interest in resuming negotiations for participation in the remedial
design/remedial action (RD/RA). In 1983 ard 1984 the .Regicn took the
position that AutoShred' s waste was not a hazardous substance under
Section 10lC 14) of CERCLA. At the present time, Auto-Shred is not considered
a PRP. Both the Navy and Reichho1d have, in the past, felt that PRP
participation should include Auto-Shred. At the t~ of the finalization
of the Record-<)f-Decision, the Navy and Reichtx:>ld will be offered the
opportunity to participate in the RD/RA. It would be to the benefit of
both the Navy and Reichhold to participate in the RD/RA at this particular
site in that the present value cost of these activities is significantly
less than one (1) million dollars and the remedy of choice is rather
easily implemented.
-------
SECI'ION V
ALTERNATIVES EVALUATIOK
ALTERNAT lVE DEVELOPMENT
'The National Contingency Plan (40 CFR 300.68) specifies that raredial
alternat~ves should be classified as either management of migration (off-
site migration) or source control.
Management of migration remedial action as specified in 40 CFR 300.68 (e)
(3) is necessary where hazardous substances have migrated fran the original
source of oontamination and pase a significant threat to public health,
welfare or the environment. Management of migration remedial actions has
been eliminated from the feasibility study because the Remedial Investigation
concluded that the contaminants dumped at the Pioneer Sand Site have remained
in place and do not pose an iITrned.iate danger to h1..1ITaI1 health, welfare or
the environment.
Source controls as defined in 40 CFR 300.68(e) (2) address situations in
which "a substantial ccncentration of hazardCA.ls substances remain at or
near the area where they were originally located and inadequate barriers
exist to retard migration of substances into the envirCl'1I'nent." Source
oontrol remed.ial actions may include alternatives to contain the hazardous
substances in place or eliminate potential contamination by transporting
the hazardous substances to a ne.v locaticn. Based on the aoove definition,
the purpose of source centrol remedial actions is to prevent or minimize-
the migration of hazardous substances fran the Pioneer Sand Site. In order
to facilitate the develcpnent of alternatives, the technologies are arranged
by target area and control measure and presented in Table 5. Fran the
above list of technically feasible remedial action technologies, 15 specific
alternatives were developed for the Pioneer Sand Site. These alternatives
are presented and described in Table 6.
In addi tioo to the above requirements for the develoflTlE:!1t of al ternati ves
based on technical feasibility, the U.S. EPA Guidance on Feasibility Studies
under CERClA (June 1985) states: "At least one alternative for each of
the fOllOoYing must, at a mini.rn..Im, be evaluated within the requirements of
the feasibility study guidance and presented to the decisionmaker:
(a)
Alternatives for treatment or disposal at an offsite facility
approved by EPA (including RCRA, TSCA, CWA, CAA, MPRSA., and SDr-.-~
approved. facilities), as appropriate;
(b)
Alternatives Which attain applicable and relevant Federal public
heal th or environmental standards;
(c)
As appropriate, alternatives which exceed applicable and relevant
public health or environmental standards;
-------
Table 5.
Technology Screening, R~~jial Action Technologies.
Fill Area
1.
No action
2.
No action wi~~ monitoring
3.
Capping
4.
Complete removal for offsite disposal
Leachate Control
1.
N:J action
2.
No action with monitoring
3.
Collection and temporary storage for offsite disposal
4.
Collection and temporary storage far c:nsite treatment and disp::>sal
5.
In situ treatment (permeable trea.troent beds)
Sludge Pond/Surface Water
1.
No action
2.
No action with monitor ing
3.
Onsite treatIrent (filtration) and discharge
Sludge Pond Sediments/Sludges
1.
No action
2.
No action with monitor ing
3.
Complete removal for offsite disposal
4.
Complete removal for onsite disposal (RCRA Cell)
-19-
-------
r
TAn'.F 6
n[HrlllAl Af.rlU" AlH/WATlVrS
I' IIINl [It SArli) S 11£
!'lW.iI\COLA. rum iliA
FrJ\SIIIL[
J\llf'rn.lt.lvc
$011 S/\.IcHtcs
rIll HA r Uti J\ L 1\11 (J\
LCilc!liJtc
---- - - ---
No ,let ton
2
No ,le l ton
with lIIollitorin~
1
Cover system
"
Covcr systcm
5 Cover Systl:1O
I
tV
0
I
6 Covcr system
1
f.over system
(\
Covcr syHelll
9
Cover system
Ifl
Covcr system
---
"0 acl ion
flo ,le t ion
with 1IIIIIIitor1n9
No ae t Ion
(0' 'ec t ion; lelOl'0r ar y
stor",,,, ;di spos...1
off-site
Co" cc t inn; tempnrdry
stnrd4Jc ;di SIH)S.' 1
off-site
Co, 1 ec t i 011; tcmpordry
stora~p.;disposJ'
or/-site
Co, 1 PC t ion ;tempnrary
slnra~e; disposal
orf-site
Cu" cetlon ;lcm/lorary
stordljc;disPosiI,
oft-site
Co" cc t iOll; tClllflorilry
S t or alJ(~ ; II i sflo sc
oll-si te
Co, , cc II 0 II ; f. rm /lor a" y
storalje;dispose
eln-slte
sumr.E !'OIiU 1\111: 1\
Stlrfacc \.later ~~~~~!:.C'l1~(!'jf~~ ~~ ~~.~~_I:IJ(!ry.
----
IIn ae lion 110 .Ie lloo I:
Nu ae t 100 tin JC tl 00
with monitortng wi t!l lIIon i tor i IIIJ I.
No aellon tlo ae l 'on \I
lit) ae II 00 110 ae lion fI,
On-Sitc Treatmcnt;
d i se hilrlJe
Oil-site treatment;
disc hdr~e
On-site treatmcnt;
IIi schdrge
Oll-S i te treatment;
disehdrlje
On-site treatment;
Iii sc hilr'.Jc
On-site treatmcnt;
dischJrljc
tin ac t Ion
II
,. i' , ; cover sys t '''0
1\,11
Helllovc;dlspose
off-site
I\,C
11 cmov e ; ell S/lo <,e
1111 - sit e
J\,r.
r i' , ; cover sys tl'IO'
II
1If'lIIove ;,11 sposc
off-site
I\,r.
-------
HAS IULE
'rA P.!.f f,
n[t~rnIAL ACT IOU ALHltfu\TlV[S
Plorn:llt SArlll S II (
I'( NSACOLA. r ton IliA
FILL HAHUIAL AUEA
SLUDGE POliO 11111:11
Altcrn.ltivc ~~s/Witste~ LC.1Ch.lt c Surface Water Spr~i_l.ncnt/S ~I!~!'J~~~ r 1''' (.11, . oj II r y
----.-- ---- --- -----.-.. _A-
II Cover sys tem Co 11 ec t ion; trca tment; On-5 He treatment; Remove;di5posc C
dispose on-site disc harge on-s i tc
,
IV
..... 12 Cover system In sHu treatment On-site treatment; fi 11 ; cover sy~tcl1\ II
I
tlisch.}rye
13 Cover system In situ treatment OI1-S He treatment; Itcmovc;dispu':.c Ate
tI i sc !large off-site
11 Cuver system In situ treatment Oil-site treatment; Remove;disposc C
disc hd rye off-site
15 Rr.movr.;dlspose Uo de ti 011 On-site tre,ltment; Remove ;rrt s/,,,sc 11.1:
off-site II i sc hi) rge off-site
-------
(d)
Alternatives which do not attain applicable or releva.;1t pubU,=
health or environmental standards but will reduce the likelihexyJ
of present or future threat fran the hazardous substances. This
must include an alternative which closely approaches the level of
protection provided by the applicable or relevant standards and
meets CERCIA' s objective of adequately protecting public health,
welfare and environment.
(e)
A no-action al ternati ve. "
Alternative 15, CaTplete Rerroval of Waste Material with Offsite Disposal,
was eliminated. This alternative included disposal in a ReM landfill or
disposal in a newly contructed hazardous waste landfill adjacent to the site.
Total present 'NOrth for disposal at a ReM landfill and the adjace:1t landfill
v.ere $31. 2 million and $16.6 million, respectively. The public healt..'-l and
environmental benefit realized with this technology did not offset its high
cost. All other alternatives were retained for further developnent and
evaluation.
AIlI'ERNhTIVE SCREENING PRCX:ESS
The purpose of the initial screening process is to identify, develop, and
incorp::>rate ccmplernentary mitigating technologies into site specific
alternatives. The National Oil and Hazardous Substances Contingency Plan
(NCP Sectioo 300.68(g) (h» outlines the process for developing and screening
remedial alternatives. The NCP states "a limited number of alternatives
should be developed for either source control or offsite raredial action
(or both) depending upon the type of reSfXJnse that has been identified."
Furthenrore, "the alternatives developed under CFR 3oo.68(g), Developrent
of Alternatives, will be subjected to an initial screening to narro.v the
list of potential raredial actions for further detailed analysis. II Three
broad criteria should be used in the initial screening of alternatives:
l) cost 2) effects of the al ternati ves; and 3) acceptable engineering
practice. In accordance with CFR 300. 68 (g) and (h) and U. S. EPA Guidance
on Feasibility Studies Under CERCIA the initial screening process of rerredial
action technologies was divided into 6 steps:
o
Identification of Remedial Action Technologies based upcr1 General
Respcr1se Actions,
o
Developrent of Technological Feasibility Criteria and Screening
(acceptable engineering practice),
o
Development of Remedial Action Alternatives,
o
Develq:ment of Environmental and Public Health Criteria and Screel'"'.ing,
o
Other criteria Screening, and
o
Cost EstiIrating and Screening.
The tedmologiesjalternatives remaining after the initial screening process
were subjected to a detailed evaluation.
-22-
-------
,- -
ALTE~~~TIVE TECH~LOGIES
Several alternative technologies were studied
a remedy. The technologies considered were:
stabilization, biological treatment, chemical
and in-situ treatment.
for possible utilization as
incineration, sol idif icat io-J
treatment, physical tre3tme~~,
Incineration was eliminated fram consideration because the wastes at the
site contain low levels of organics making incineration an inappro~riate
technology.
Four alternatives were identified for the solidification/stabilization
technologies. Oementation and pozzolanic cementation were retained for
consideration, but were.later eliminated due to the non-homogeneousness of
the fill. The fill contains construction and demolition de~ris and large
pieces of metal that would interfer with the solidification process.
Thermoplastic binding and organic pol~r binding were el~inated because
of low performance.
Activated sludge, trickling filter, anaerobic digestion, extended aeration,
and stabilization ponds were the biological treatment technologies considered.
The biological technologies were el~inated for three reasons: insufficient
organic concentration in the waste stream, same heavy metals may be toxic
to treatment bacteria, and the influent flow is too low to maintain the
treatment process.
The five chemical treatment methods that were considered are: neutralization,
precipitation, reduction, wet oxidation, and chlorination. Precipitation
was retained as a feasible technology. ~e four remaining technologies
were eliminated due to the nature of the waste stream.
Physical treatment technologies considered included the following unit
processes: reverse osmosis, ion exchange, carbon adsorption, stripping,
sedimentation, dissolved air floatation, or filtration. Stripping, filtration,
and sedimentation were considered technically feasible and retained. The
remaining technologies were eliminated due to their undemonstrated
performance and the nature of the waste stream.
The in-situ treatment technologies considered included: permeable treaL~nt
beds, physical chemical treatment, vitrification, solution mining, and
biodegradation. Permeable treatment bed technology was retained for further
consideration, but was eliminated in later evaluations due to inadequate
removal efficiencies and the inability to insure the effectiveness of the
system. The remaining four technologies were eliminated because of their
lack of demonstrated reliability and performance and for the potential for
groundwater contamination.
SUMMARY OF ALTERNATIVES EVAIlJATIONS
Fifteen remedial alternatives were initially screened with the intent to
reduce the number of alternatives to be evaluated in detail. This initial
screening process involved the use of four criteria: 1) technical feasibility;
2) public health effects~ 3) environmental effects; and 4) cost. Of the
fifteen alternatives, only one was el~inated fram further evaluatio~.
-23-
.
-------
Alternative -15 was eliminated because of its extremely high cost and its
failure to significantly improve site conditions over several less expensive
alternatives.
The remaining fourteen alternatives were evaluated in greater detail and
underwent a detailed evaluation process. This process included evalu3tions
for the following criteria in the following order: 1) technical feasibility
(Table 7): 2) public health: 3) environmental (Table 8): 4) institutional;
and 5) cost.
The first four criteria are listed in order of their priority, that is,
technical feasibility has the highest priority and institutional has the
lowest priority. Alternatives not passing a particular evaluation criteria
were el~inated and not evaluated for subsequent, lesser priority criteria.
Those alternatives passing criteria 1-4 underwent the final process, cost
evaluation. Table 9 provides a description of the fifteen alternatives and
lists the screening results and evaluation sequence fram left to right.
Alternatives passing all evaluation phases are listed in the second column
fram the right.
After the initial screening and elbnination of Alternative 15, the alternatives
were evaluated for technical feasibility. Alternatives 12, 13, and 14 were
el~inated fram further evaluation for two major reasons: first, the
permeable treatment bed did not achieve adequate removal efficiencies for
metals and organics: and second, there was no mechanism to ensure adequate
treatment of the leachate.
Public health evaluation el~inated Alternatives 1-5, but Alternatives 2 and
4 were retained to fulfill EPA requirements.
The No Action or Alternative 1 is unacceptable from a public health standpoint
because it does not alleviate any of the public health effects identified.
Factors that justify the elimination of the No Action Alternative are based
on the following potential long-term public health effects that have been
identified if no remedial action is taken:
o
Ingestion of contaminated groundwater, of particular concern are
VCC, metals, and phenolics contamination:
o
Direct contact with sludges containing metals and PCBs in the highest
concentrations;
o
Direct contact with fill area and sludge pond area soils contaminated
with metals, phthalates, PAH, phenolics, VOCs, and PCBs.
o
Inhalation of vcx::s in low lying areas of the site.
Alternatives 8 and 11 were eliminated in the institutional evaluation, but also
retained to fulfill EPA requirements. However, Alternative 8 was permanently
dropped after the cost evaluation since Alternative 11 fulfilled the specific
EPA category designation at less expense. None of the remaining alternatives
were eliminated in "the environmental evaluation phase. Alternatives 7 and
10 were eliminated in the cost evaluation, but Alternative 10 was retained
to fulfill the EPA requirements.
-24-
-------
TA !\I,F
7 :
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Only t'wD alternatives, Alternatives 6 and 9, p3.ssed all the screening anj
detailed evaluations. Alternatives 2, 4, 10, and 11 are listej with
~lternatives 6 and 9 for the reason described above.
Table 10 is a source control alternative surrrnary for the six alternatives
carried through the entire screening process. Included in this table are
capital cost and present warth values. Alternative 2 has the lowest present
I,o,Qrth value and Alternative 6 has the highest present worth value. The
table also includes sl.U'1'T1"aIies of public health concerns, envirorurental
concerns, technical concerns, and carrnuni ty response concerns for each
alternative.
-36-
-------
TA I: I I'
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11
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.
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/., I' 1I~lrr l.t'.I"'f'''' d,"1 (JoSII,. 01\('0"''1'';
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"r.II,....,.1 .,,,1 OIl\lItt ni\plI'Htl; Sur 'tUt U.Uf'r
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r 0'- ~ IIIIII),! Pond W4\ t r.
II II A.,.. {Ov... S,sl,.m; l'dr".I,. (0111'(1100,
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1,,..11""'''1 .nd U,,\II,. 01\110.,'1'; Ort\lI~ Oi\.
1'"\.1 01 Sludt/r 1'"",1 "HII'
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",.,h".,.., "1II11I1I".Hr (1".1)1)#,,"; \'" '"(~ W.,lrr
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-------
SECTION VI
CCMMUNITY RELATIONS
The first community relations meeting to inform nearby residents of the
Remedial Investigation findings was held on May 9, 1985. Approxlinately
60 people attended the meeting. Initial findings of the Site Investigation
'Mere discussed. The public was informed that the chanical data showed that
no contaminants were migrating fram the site.
The public meeting to discuss the Feasibility Study was held on July 31, 1986;
approxlinately 25 people attended the meeting. A formal presentation was
given discussing the RIjFS, the proposed remedy, and the immediate removal
of PCB contaminated soils.
FollowirYJ the formal presentation, the meeting was open to questions fran
the public. The questions raised indicated concerns about the type of
contaminants on site; the probability of the contaminants migrating into
adjacent properties; the clean-up activities and cost of activities; the
duration of site monitoring; and the present dangers to persons entering
the site.
It appears that the local community is aware of both the immediate and
future problems related to Pioneer Sand and that community interest is
m:>derate at this tline.
-------
SE-..ry 101\ VI I
CONSISTENCY wTIH ar;-.:[R E:\TVIROt--L'tI1E!'ITJ.l.. IAvS
Environmental standards and criteria that may ba applicable or releva."1t to
the site include:
o
Florida DER Water Quality St~ldards for Class G-II Graundwaters
o
Florida Water Quality Standards for Class-III Sur=ace Waters
o
Resource Conservation and Recovery Act (RCRA)
o Toxic Substances and Control Act (TSCA)
o
Clean Water Act (CWA)
o
Clean Air Act (CAA)
o
1980 EPA Ambient Water C\Jality Criteria
o
Safe Drinking Water Act (SrwA)
o
O.S.H.A. Permissible Exposure ~ts
o Chapter 17-7 of the Florida Administrative Code
EPA RCM regulations are not legally applicable to the Pioneer Sand
Superfund Site because the sludge and fill rraterial samples analyzed for
EP-Toxicity did not meet the definition of a hazardous waste as specified
in 40 CFR 261. These regulations are relevant in regard to the public
health evaluation because ooe. of the fill material samples contained
cadmium and lead concentrations which approach the extraction procedure
toxicity characteristics for hazardous wastes.
The EPA National Interim Prirrary IXinking Water standards (Maximum
Contaminant Levels) apply to public water systems. Since the groundwaters
underlying the site are used for only private water supply, the ~ do
not specifically apply. HONever, the Florida DER Water Quality Standards
for groundwaters (Class G-II), which are equal to or rrore stringent than
the MCLs are awlicable standards. These standards apply to potable
groundwater in aquifers which contain less than 10,000 liB/l of Total
Dissolved Solids. Therefore, these standards were used to evaluate
groundwater quality. The Clean Water Act Water OJality Criteria for
H\.II't'an Health and Safe Drinking Water Act Health Advisor ies will also be
used as guidelines for groundwater quality.
The Florida DER Surface Water CUality Standards are not legally applicable
to the large pond because these waters are not defined as surface waters
of the state. HONever, the Class III standards for surface watt::rs will be
used as guidelines in the evaluation of the surface waters of the large
p:>nd since the waters have been used for recreational fishiJ"1g an:J waterfo,..'~
hunting in the past.
-------
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The EPA National Anbient Air Quality Standards are not specifically
applicable to the site, but were used as guidelines in evaluation of
ambient air quality.
The O.S.H.A. Permissible Exposure Limits (PEL) apply to the inhalation
exposures that workers may suffer during remedial actions.
No permits are required for the installation of the leachate collection
system (LCS). Volatile organic emissions from the excavation of the
trench may require a CAA permit. The Safe Drinking Water Act is not
applicable to this system since it is not discharging pollutants to the
groundwater bearing zone. The construction phase of the trench and LCS
will require close compliance with NIOSH regulations. OSHA should be
alerted during this phase due to the enclosed space of the trench.
The leachate treatment system will not need a discharge permit. F.A.C.
1-6.010(1) states "no wastes are to be discharged to any waters of the
state without first being given the degree of treatment necessary to
protect the beneficial uses of such water." Discharge to the large pond
does not leave the boundaries of the site and it is not considered by the
State as waters of Florida; therefore, no discharge permit will be
required. Discharge limitation on the treated leachate are also not
applicable under the Safe Drinking Water Act since the pond water is not
a drinking water source; however, leachate cleanup standards will be
addressed in the design phase of the project. The cleanup standards will
probably be in accordance with the MCL's. The aerator portion of the
treatment system will emit low levels of volatile organics, but will
probably not trigger the CAA or local and State regulations for emissions.
All known areas of PCB concentrations in soils 50 ppm and above have been
removed. Isolated patches of PCB contamination less than 50 ppm remain in
the fill area, but none of this contamination has migrated off the site.
There does not appear to be any physical mechanism for transport offsite
of the remaining low levels of PCB's since the fill area is not subject
to flooding or stream erosional processes. Furthermore, the fill area
will be covered by 2 feet of clay and 1 foot of topsoil to reduce
infiltration.
The Natural Resource Damage Assessment, conducted by the Fish & Wildlife
Service has concluded that there are no lands or facilities under the
Department of the Interior's trust which have been impacted by contaminants
from this site.
The Pioneer Sand Site is not in an area that is subject to inundation
from storm surges associated with tropical systems (Figure 9). The
topography of the site dictates that periodic ponding will occur,
specifically in the depressed area associated with the large pond.
-------
SECTION VIII
RECOMMENDED ALTERNATIVE
The reconrnended alternative is Alternative 9: Fill Area Cover System;
Leachate Collection, Treatment, and Onsite Disposal; Surface Water
Treatment and Onsite Discharge; and Cover System for Sludge Pond Waste.
(Figures 10 and 11).
The remedy is consistent with 40 CFR Part 300.68 (J) in that alternative
9 is technically feasible, alleviates all existing and potential health
effects, presents no new public health hazards and substantially reduces
the threat to the surface and groundwater (Table 11).
The fill area and sludge pond area cover system will consist of a cover with
a 3-5% slope consisting of approximately two feet of clay (K < 107, cm/s) and
one foot of top soil that will adequately reduce infiltration (Figure 12).
Since this cover system will not be as effective in eliminating all
infiltration, a minor amount of leachate may be generated. Specific soil
thicknesses and cover design will be based on a detailed engineering
analysis.
Preference is given to this option rather than to the RCRA cover because of
its lower capital and O&M requirement while meeting the remedial objectives.
Modification of the cover may be required in order to satisfy design
requirements and site conditions (i.e., condition of the fill material
area base).
Leachate will be collected, treated, and disposed of onsite. The leachate
will be collected through the use of a subsurface installed drainage system
(Figure 13). Once the leachate reaches the riser, it will be pumped to
a treatment unit. Leachate treatment will be accomplished by a limestone
buffer and volatilization system. Soluble metals will be removed after
precipitation as a result of being flushed through the limestone. Aeration
will effectively diminish volatile organics to acceptable levels. Metal
carbonate sludges will be collected in a sludge well and removed from the
site by vacuum truck, as needed. The treated leachate will be disposed of
in the large pond. Periodic monitoring of the treated leachate will
assess the effectiveness of the treatment operation (Figure 14).
The sludge pond waters will be treated and disposed of onsite. Analysis
of the sludge pond waters detected very low concentrations of copper and
zinc, but the sediments in the sludge pond have significant concentrations
of metals and organics. The entrainment of these sediments during water
removal is a concern; therefore, the sludge pond water will be pumped
into a settling basin where heavy and large particulates will be removed.
Pumpage through a filter system will remove fine particulates. The
resulting "clean" effluent will then gravity flow to the large pond.
Periodic monitoring of the effluent will be necessary to assess if additional
treatment is needed. Particulates collected in the filtration process
will be disposed of in the sludge pond or at an appropriate offsite landfill.
-------
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El i-.!;.5':e-: be:::...:.::-=- it -::Y2=' rc: a~ 1'2'::':::7 ;-_:::::
hEalc-, effects S.J::~, as ::i:-'2:t conta:': a:-t:
i~~es:io~ ro~tes a~~ ~:e;.:ia1 fo~ offs::~
~.ic~a~i0~ \,ja C~0~~~~~:~~ ro~te.
2. ~o A::tio'"1 \.;::~
Mc::i tc:- i nc
E1 binate: bas~ 0:-. ":.r.-::
state: i-, t.!":-:- ~:: Actlc-..:-.
pu:.l ic: h-==-:~. co,.:':-:-:-:::
de: i : i 0;,.
3. Fill A::ea Cove:- Systen
El~inated bas~ on ~lic healt.~ con::e~ns
because exposu:-es th~ouah contact with slU:~'23,
soils, and leachates in the sludge pon= a:-c.=:
a:-e not el~inat~.
4. Fill A::ea Cove~ System;
Leachate Collection,
Tempo:-ary Sto:-a;;:e, and
Offsite Dis sal
EIUninated based on ~~lic heal~~ concerns.
A1 ternative does not el irninate exp::>su:-e to
contaminants in sludge p::>nc a:-ea.
5. Fill Area Cove:- SystEr.\;
Leachate Collection,
Tem~rary Storcr;1e, and
Offsite Disposal; Su:--
face wate:- Treatment
and Onsite Discha:-ae
ElUninated based on public health conce:-ns.
Alternative does not eliminate exposu:-e to
contaminants in sludge pond a:-ea.
6. Fill A::ea Cove:- System;
Leachate Collect.ion,
Temporary Storage, and
Offsite Disposal; Sur-
face Water Treatment
ard ensite Discharge;
Cover System for Sludge
Pond Waste
Passed all screening evaluations, b~t als:> ha:
the highest present ""D:-th value. A less cosUy
remedy will attain applicable and relevant
Federal, public health, and environmental
standa:-ds.
7. Fill A::ea Cover System;
Leachate Collection,
Ter.\p::>rary Storage, and
Offsite Disp::>sal; Sur-
face water Treatment
and O1si te Discharge;
Offsite Disposal of
Sludae Pon= Waste
Exceees envirofTnental req...lireme:1ts but el irni-
nated due to excessive costs. A'inual O&~
>$200,000.
B. Fill Area Cover System;
Leachate Collection,
Temp:>rary Storage, and
Offsite Disp:>sal; Sur-
face Water Treatment
and Q,site Discharge;
Onsite Disp:>sal of
Sludoe Pond Waste
Exceeds envirorrnental requirements, but
eli~inated due to high cost.s. Less ex~nsive
remedy available that meets environne~tal
requirements.
-45-
-------
Table 11 (cant.).
Summary Table of Feasi~le Alternatives
Remedial Alternative
Reason for Non-Selection
9. Fill Area cover Syste~;
Leachate Collection,
Treatment, and Onsite
Disposal; Surface Water
Treatment and Ons i te
Discharge; Cover System
for Sludqe Pond Waste
T~is is the recommended alternative.
10. Fill Area Cover S}Stem;
Leachate Collection,
Treatment, and Onsite
Disposal; Surface Water
Treatment, and Onsite
Discharge; Offsite Dis-
posal of Sl udge Pond
Waste
Exceeds environmental standards, but eliminat~j
due to excessive costs.
11. Fill Area Cover S}Stem;
Leachate Collection,
G Treatment, and Onsite
Disposal; Surface Water
Treatment and Onsite
Discharge: Onsite Dis-
posal of Sl udge Pond
Waste
Exceeds environmental requirements, but elimi-
nated due to excessive costs.
12. Fill Area Cover System;
In Situ Leachate Treat-
ment: Surface Water
Treatment and Onsite
Discharge: Cover S }Stem
for Sludge Pond Waste
This alternative is not technically feasible
because of low removal efficiencies and no
effective way to monitor treated leachate.
13. Fill Area Cover S}Stem;
In Situ Leachate Treat-
ment: Surface Water
Treatment and Onsite
Discharge: Offsite Dis-
posal of Sl udge Pond
Waste
Same as Alternative 12.
14. Fill Area Cover System;
In Situ Leachate Treat-
ment; Surface Water
Treatment and Onsite
Discharge: Onsite Dis-
posal of S1 udge Pond
Waste
Same as Alternative 12.
-46-
-------
FIGL'RE
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Non-RCRA Cover
-47-
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!=:ystem
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GrOlIDd:w'ater rronitoring will be initiated during the first year of
i.rnplenenting the Remedial Action. Sa..'11ples shall be taken frQ!, t..'le se\'e.j
-...Iells (lA, 2A, 4A, fA, 7A, 9AA, and 10V\) on a quarterly basis. The
first sampling of the rronitoring wells will be conuucted prior to ~jY
remedial activities to establish pre-construction conditions. If no
positive trends are observed during the first year of analysis, the
sampling will continue semi-annually as long as backgrOlIDd conditions
persist, or far 20 years beyond completion of the Remedial Activities.
Analysis of samples will be in accordance with EPA analytical standards
and will include the following indicator parameters:
Metals
Organics
Chranium
Zinc
Lead
Priority Pollutant Acid Extractables
Priority Pollutant Purgeables
Pesticides and PCB's
The selection of indicator parameters is based IIp:)n numerous previoos
priority pollutant analyses conducted during the Remedial Investigation
phase. AI though other types of contaminants were present onsi te, these
metals and carpounds are arrong the m::>st comron and rrobile fOlIDd on the
Pioneer Sand Site.
A detailed cost development and analysis of selected remedial alternatives
was done to assure that the m::>st cost-effective remedial action was
chosen for the Pioneer Sand Site. Cost estirrates followed the procedures
specified in 40 CPR 309.68(8)(2)(B), Guidance on Feasibility Studies
under CERClA, and Remedial Action Costing Procedures Manual.
Fourteen remenial action alternatives underwent the evaluation process.
On the basis of technical feasibility, public health and welfare, and
environmental evaluations six of the initial alternatives were eliminated
fran further consideration. A detailed cost analysis was performed for
each of tht: remaining eight alternatives. These alternatives are listed
and described in Table 12.
A breakdown of the capital and operation and rraintenance cost for the
reC01'1'r'ended alternative is given in Table 13. This alternative showed
lesser present worth variations than rrost of the other alternatives. The
variations associated with the present worth were due to the lIDcertainty in
annual operation and rraintenance cost.
Operation and Maintenance (O&M) contingencies include groundwater rronitoring
and well rraintenance. O&M will continue for 2C years after the start of
Remedial Actions. Maintenance of the cap, leachate collection system,
and sludge removals are included in the O&M costs.
-50-
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c-::.-. ,...,+:
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Al tc-:.-nat i\.~ 4 5~2 7.8 262!.4 33C 1. i 1730.4 22:'2.2 13';? ~
AJ te:-native 6 5206.6 2818.6 3376.3 1897.2 2501.7 145E..8
;OJ te:-n.3t h'E- 7 6514.3 3672.7 ';704.3 2771.6 3B39.3 2~';:. (t
AJ temative 8 5714.9 3252.8 3885.8 2332.6 3011. 8 1832.8
Al te:-nat i ve 9 866.1 824.2 717.7 675.8 646.8 E'" Q
-l~. ..,
A1 temative 10 2173.8 1678.6 2045.6 1550.4 1984.4 14?;<.2
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-51-
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(.)ve: ~'~te: ial E.i1TJ} a-:8'"1er;t
Fencin;;)
In:H:.-ect wsts
£~:ineering & Desiqn
w:1ti n;Jency
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C3~i::31
C)c:;ts
73,n50
49,300
45,P:.O
13,800
27,300
18,200
l..:acl-late C:>llecti''):1 & On-site Disj"):>sa1
F:l e-ct::- ic i ty
wst of wllect i0n S)'ste::
ITlsirect C0StS
En~ine.?~iri;J & D=sin'i
wn':i rtJen:)'
IT. a i ~a'Je "f
5-1311 F\,)n:::
Sl~Qe P~nj A,ea C)ve:
C)ver ~te,ia1 wst
Cove: ~1ater i a1 Em;;l ase:ent
5eediT)~ & Fertilizing
Ird i rest: CJsts
~T)~:T1ee,-ing & nesiqn
Contingency
* 520, 2CJO f,:>~ yea: ::1
85,]00
18,000
15,500
10,3C\()
1,000
42,ROO
40,000
90()
12,555
8,370
roT:\L
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S~'"'rIO" IX
OPERlG ICN At'\TI l"JAI!\TfENA..\JCE (0&.'1)
~1UAL 0&!'-1
An.'1ual cperating and t-1aintenance (0&'1) costs for the Pioneer Sand site
were esti.rnated at $24,900 per year. Additionally, gra.mdwater rronitoring
costs are estimated to be $20,000 for the first year and $10,000 for
subsequent years. A breakdONn of the O&M needs and costs are as follONs:
1.
Sludge Pond r1aintenance needs include IrONing and erosion control,
contingency costs, and engineering reports. Estimated annual costs
are $3,400/year.
2.
Cover System Maintenance needs include YT"ONing and erosion control,
fence repair, contingency costs, and engineering reports. Estimated
annual costs are $17, 800/year.
3.
cnsite Water Disposal costs for the leachate treatment system include
electricity, replacement limestone, ~d contingency costs. Estimated
annual costs are $3,700.
4.
Groundwater M::>ni toring costs and needs are as follONs:
a) Sampling for year #l will include four sarrpling events at an
estimated cost of $20,000.
b) Sarrpling for years 2 thru 20 will include serni-annual sarrpling at an
estiated cost of $10, OOO/year .
c) Contingency costs will be $200 for the first year and $100 for
subsequent years.
d) Well upgrading will occur after year 10.
$3,100 for the upgrading event.
Costs are estimated at
FUNDING .
The State of Florida has instituted a program for dealing with hazardous
waste sites. This program is designed on the CLRCIA rrodel and is operated
similarly to Superfund through the Florida Department of EnvirOll1'rental
Regulation. The State of Florida has agreed to fund 10% of the cost for
iltplementing the selected rerred.ial action.
After the remedial action has been iJrplemented, EPA will provide O&M
costs for one year. At the end of the first year, the State of Florida
will assume the responsibility for Q&M. A letter expressing concurrence
by the State of Florida is in Appendix Eo
These arrangements will be negated should the PRPs agree to undertake t.:-,e
RD/RA operations as outlined in this document.
-------
I--
I
I
SECrIO~ x
PROJt:Cf sa1EDJLE
The schedule for the RD/RA phases of the Pioneer Sand site
are dependent on the success of enforcerne:1t negotiations.
agree to undertake RD/RA, the schedule will be negotiated
EPA, FDER, and the PRPs.
remediation
If the PRPs
to aCcarm::x)ate
If, however, neaotiatians with the PRPs arc unsuccessful, EPA will follCM'
the schedule outlined below:
Schedule Landrrark
Da te for
Irrplementation
1.
Finalization of the ROD
2.
Cat1p1ete Enforcerent Negotiations
3.
Award Contract for Design
4.
Initiate Design
5.
Carplete Design
Award/Arrend Superfund State Cntract
(and lAG) for Construction
6.
7.
Initiate Construction
8.
Catplete Construction
9/30/86
11/28/86
1/30/87
3/2/87
9/1/87
9/30/87
11/2/87
11/1/88
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SL:~ -y.; >:!
FL.~_:?":: .:... -~ : _1.':
Futu:-e re:n:lia.l a.::i\,.iti-=s to c::Ji'.;.le:E- Slte re:;~")-.se '..,ill
actiO:l5. The 00.'1 a:tivities are dis::..lSs.".~ in So::-:tl::>:l IX.
in::l \D.". 0; '.:
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APPENDIX A
Responsi veness SLITIt1ar y
-------
Woodward-Clyde Consultants
3.0 CONCERNS RAISED DURING THE PUBLIC MEETING
1. Source of Comment: Mr. Berling
Public Meeting
Response From: Robert teighton, WCC
Comment
What was the distance from the site to the private wells?
/
Response
Woodward-Clyde Consultants inventoried wells within a one-mile radius
of the Pioneer Sand Site. The purpose of the inventory was to: 1)
locate all wells in the vicinity of the site which may be adversely
impacted, 2) determine the number of wells and their usage in the area
(potable supply, irrigation, etc.), 3) locate wells to be sampled for
extensive chemical analysis, and 4) establish background water quality.
The well location map was compiled using existing project data,
information from the Northwest Florida Water Management District, the
U.S. Geological Survey, local well drillers, and a door-to-door
inventory of local residents. Well locations were field verified and
plotted on a base map. All specific well information, depth screened
interval, etc., has also been recorded in Appendix I of the Pioneer
Sand Site Investigation Report. Eighty-six wells were inventoried
ranging in size from two to four inches in diameter and from
approximately 40 to 200 feet in depth. The closest public supply well
to the Pioneer Sand Site is the Avondale Well located about 5000 feet
southeast of the Pioneer Sand Site. Wells currently in use within the
mile radius were categorized as either a domestic well for potable
water supply or as non-potable. To the best of our knowledge all
residents adjacent to the site rely upon the county water system for
their source of potable supply except for 1) Mrs. Hayes, who is located
approximately 1000 feet southeast of the site, 2) Mr. Blum and 3) Mrs.
Eva Johnson, both located about 500 feet north of the site
(upgradient).
Fifteen private wells within a one-mile radius of the site were sampled
and screened for volatile organics. Seven private well samples, two
upgradient and five downgradient, were selected for complete Priority
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"'I.'IJ.
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Woodward-Clyae Consultants
2.
Unidentified Speaker
Source of Comment:
Public Meeting
Response From:
Robert Leighton, WCC
Comment
What
pond?
were the findings of the sediment analysis in the small
(s'l udge )
Response
Three pond sediment samples were field screened for Polynuclear
Aromatic Hydrocarbons (PAHs) and volatile aromatic hydrocarbons.
Toluene was detected in the pond sediments of the small and medium
ponds below significant concentrations. The fluorescence data
suggested that the small and medium ponds were contaminated with PAHs
and other semi-volatile fluorescing compounds.
Two of the small (sludge) pond sediment samples were analyzed for
Priority Pollutants. The small (sludge) pond sediment samples
contained significant concentrations of the following metals: cadmium,
copper, chromium, lead. nickel and zinc.
Extraction Procedures (EP) Toxicity testing for metals was performed on
duplicate samples. Results indicate concentrations above the detection
limits but significantly below the maximum concentration level
established by FDER.
Cyanide concentrations in all pond sediment samples were insignificant.
The organic Priority Pollutant analysis revealed the presence of low
concentrations of phthalates in all pond sediments. Sediments in the
small pond had high concentration of phthalates and low concentrations
of dinitrotoluene, dichlorobenzene, napthalene, phenolics, toluene, and
xyl ene.
In summary, the sediments in the small (sludge) ponds contain metal and
organic constituents which appear to be almost identical to the fill
mater; a 1 .
7
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'l.pjJ.-';
-Woodward.Clyde Consultants
3.
Source of Comment:
Unidentified Speaker
Publi c Meet i ng
Response From:
Dr. Thomas Kwader, wee
Comment
iJhy is there less
nonitoring wells?
a possibility
of
contamination
in
the
deeper
~esponse
"here is an extremely low probability of contaminating the deeper
lonitoring wells because underlying the whole site is a clay lense, a
load competent clay lense. This lense Cqn be found in all corners of
he site in uniform thickness. Its low permeability is very effec:ive
n. keeping the waters in the surficial aquifer (upper fifty feet) and
he Floridan aquifer separate.
9
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Woodward-Clyde Consultants
4.
Source of Comment:
Mr. Thigpen
Public Meeting
ReSDonse From:
Robert Leighton, wce
Comment
Why spend approximately $700,000 in remedial action if there is no off-
site contamination:
Response
Extensive chemical, hydrological and geological investigations
conducted at the Pioneer Sand Site confirm that the contaminants dumped
at the Pioneer Sand Site from 1973 to 1979 have not migrated off-site
at this time. Factors favoring the immobility of contaminants include;
1) the clayey cap covering the contaminants, which greatly limits the
amount of flushing of chemicals into the ground water; 2) relative low
permeability of the fill material which tends to limit the amount of
groundwater flow through the fill; 3) lack of surface drainage features
away from the site, i.e., transport of chemical via streams away from
the site; and 4) the high vapor pressure of the more mobile compounds
(i.e., benzene, toluene) which tend to volatilize in extremely short
distances.
Based upon the conclusion of the site investigation the objectives
the remedial action are to:
of
maintain or improve the surface and gro~dwater quality
site;
on-
maintain
sHe;
the
natural groundwater quality adjacent
to
the
minimize leachate generation within the fill material by
limiting groundwater percolation through the fill material;
minimize human
waters; and
contract
with the sludges and
small
pond
protect future surface and groundwater quality by
establishing a monitoring program to detect changes in
surface water quality on-site and groundwater quality both
on-site and off-site.
10
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- U'ooowardl'Clyde Consultants
In order to achieve the above objectives, the fill material and small
(sludge) pond area will be capped, and a leachate collection and
treatment system installed to collect and treat any leachate
originating from the fill material. In additioA to these protective
measures, a groundwater monitoring program will be implemented to
provide an early warning system if site characteristics change.
These steps are being taken by FDER and U.S. EPA to provide the maximum
long-term protection of the public health and environment.
For additional information
Droposed remedial action,
~eport, pages 237-247.
and
see
a detailed
the Pioneer
cost
Sand
breakdown of the
Feasibility Study
11
~.-_.~-
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WoodwarCI-CL ycle t,;-onsultants--
Mr. Angers
(Phonetic spelling)
5.
Source of Comment:
Public Meeting
Response From:
Dr. Thomas Kwader, WCC
Comment
We were talking about contamination of wells due to the
pit here. But if other wells in the neighborhood within
or so, as this gentleman says, are contaminated, can that
come from someplace else?
Pioneer Sand
a mile radius
contamination
Response
Absolutely; and that'5 part of the problem. If we start sampling wells
too far away and we start seeing contamination, we may have to start
looking for other sources of contamination, which is not part of this
study. Unless we have a reason to believe that there is another source
of contamination, your local DER will go out and investigate that.
12
~--
.----- . _.. -..- -. .
. ... -
. ... ..
~_._- -- ---.------..- - .
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Woodward-Clyde Consultants
6.
Source of Comment:
Mr. Thigpen
Public Meeting
Response From:
Robert Leighton, wee
Comment
Describe the monitoring program and its cost.
Response
The monitoring plan proposed to monitor groundwater quality at
Pioneer Sand Site, both during and after Remedial Activities,
consist of eight shallow wells already installed at the site.
the
wi 11
Analytical Procedures will include the following set of indicator
parameters to detect the possible presence of leachate migrating from
the area. Analyses will be in accordance with EPA guidelines as set
forth in the QA/QC portion of the Work Plan.
Metals Organics
Chromium Pri ority Pollutant Acid Extractables
Zinc Pri ority Pollutant Purgeables
Lead PCB-1242 and PCB-1254
The seiection of indicator parameters is based on numerous previous
priority pollutant analyses conducted during the Remedial Investigation
phase. Although other types of contaminants are present on site, these
metals and compounds are among the most common and mobile found on the
Pioneer Sand Site.
Sampling Frequency
Du ri ng the
be taken
$22,000.
prior to
conditions.
first year of implementing the Remedial Action, samples will
from the seven wells on a quarterly basis at a cost of
The first sampling of the monitoring wells will be conducted
any remedial activities to establish pre-construction
If no positive trends are observed during the first year
13
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Woodward.Clyde Consultants
of analysis, the sampling will continue semi-annually at a cost of
approximately $11,000 per year as long as background conditions
persist, or for 30 years beyond completion of the Remedial Activities.
Additional
found on
Study.
information concerning the proposed sampling
pages 84-88 and page 237 of the Pioneer Sand
program is
Feasibi 1 ity
14
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1 ft
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7.
Source of Comment:
Mr. Thigpen
Pu b 1 i c Meet in 9
Response From:
Robert Leighton, wec
Comment
Can Superfund monies be used to finance municipal water projects
residents into municipal water systems)?
(hook
Response
No, the use of Superfund monies is very specific. Only if there is an
immediate threat to public health can the monies be used to obtain an
alternate water supply.
15
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: -;-~'..~c:"~ -------
~~:ooc:warCJ.I';uyc:e l...;onsu!ltants
4.0
CONCERNS RAISED DURING THE COMMENT PERIOD
8.
Source of Comment:
Audubon Letter - 8/13/86
Dorothy S. Kaser, Chair
Response From:
Robert Leighton, WCC
Comment:
What is the possibility that in the future the site could be sold
development?
for
Response - Robert Leighton, wec
Presently there is no land use planning or zoning for the
surrounding the Pioneer Sanrl Site. Escambia County is under an
by the Governor and Cabinet to adopt land use regulations by
Until such time it is recommended that:
area
order
1987.
a
fence
be erected to protect the integrity of
the
cover
system;
any proposed land use must demonstrate that the activity
will not adversely impact surface and ground water quality
as well as reduce the integrity of the remedial design;
any proposed land use must demonstrate that it will maximize
the Health and Safety of the persons utilizing the site as
well as the adjacent residents; and,
any proposed land use must not adversely impact
land use.
surrounding
Upon adoption of land use regulations in Escambia County it is further
recommended that the site be classified as heavy industrial or special
use with a note referring to the Pioneer Sand Site Investigation,
Feasibility Study and post-closure monitoring results.
16
~~~.fO._-
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WoodwardJ.Clyde Consultants
9.- Source of Comment:
Audubon Letter - 8/13/86
Dorothy S. Kaser, Chair
Response From:
Robert Leighton, wec
Comment:
Since the water from the sludge pond is essentially free of
contamination, I hope you will make every effort to relocate all
aquatic creatures (fish, turtles, eels, etc.) from the sludge pond to
the large pond before pumping begins. All aquatic life should be free
from any contamination since surface water is free from contamination.
Also, pumping and draining will stir sediments on the bottom of the
sludge pond.
Response - Robert Leighton, wee
Every effort will be made to relocate all aquatic life to a
environment prior to draining the small (sludge) pond.
suitable
17
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Woodward-Clyde Consultants
10-
Source of Comment:
Audubon Letter - 8/13/86
Dorothy S. Kaser, Chair
Response From:
. Robert Leighton, wec
Comment:
After draining water from the sludge pond, sediments from sludge pond
will be exposed and there will be a release of volatile organic
compounds into the atmosphere.
Response - Robert Leighton wce
Two air samples were collected during the site investigation to assess
the ambient air quality. These samples were collected upwind of the
fill area at the site and were analyzed for particulates, metals,
volatile organic compounds, and polychlorinated biphenyls. Levels of
particulates and polychlorinated biphenyls were below detectable limits
in both samples. The metals constituents of the samples analyzed had
insignificant concentrations. The following volatile organic compounds
were detected in one of the samples:
Xy 1 ene
Concentration
(ug/m3)
18.6
CouDound
Other hydrocarbons
6.46
20.2
Tetrachloroethene
These levels are not significant in terms of ambient air quality.
In addition,
investigation
the proposed
quality.
four air samples were collected during
to assess the effect of fill area activities
activities in the smal1 (sludge) pond area on
the site
including
the air
Two samples were collected downwind during the fill area boring
activities, at approximately one foot from the ground and 30 feet from
the activity. These samples contained no detectable concentrations of
18
J
.......-:--- . On
-
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,J.t.'-,;,;, '..w,~--.-1.-".~'- l'iiIi ,- -,iii, -.I~:~"'" ,-""'"",, L. - ~ ,1oIIi I '. to..L J U l~ ~i-
polychlorinated biphenyls or particulates. Metals were detected at or
below background levels. The volatile organic compounds present were
well below safe ambient levels during the boring activities. One
sample was collected directly from a newly excavated surface boring.
This sample contained no detectable concentration of polychlorinated
biphenyl or particulates. Metals were detected at or below background
levels. The volatile organic compounds detected were alkyl benzenes
(approximately 1 mg/m.3 and C 8 to C 9 hydrocarbons (approximately 10
mg/m ).
One sample was collected in an area where odors were often noted. This
sample was collected approximately one foot from the ground. This
sample aiso contained no detectable concentrations of polychlorinated
biphenyl or particulates. Metals were detected at or below background
levels. The volatile organic compounds detected were xylene (0.017
mg/m3) and C8 and C9 hydrocarbons (0.007 mg/m3).
These limited data suggest that off-site ambient air quality will not
be adversely affected by fill area removal and small pond exposure
activities.
For additional information see the Pioneer Sand Remedial
Report, pages 153-162.
Investigation
19
. ~ ,~~.... -.- *-f.. ,-,...- .- .-' .
. . -.-..-. #.
...,~
- ..
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L
I
Woodward.Clyde Consultants
11.
Source of Comment:
Audubon Letter - 8/13/86
Dorothy S. Kaser, Chair.
Response From:
Robert Leighton, wee
Comment
Also, environmental effects may occur if significant rainfall
occur and runoff from the area reaches the large pond.
should
Response - Robert Leighton, wee
Temporary berms and runoff control dikes will be used during
construction phase of the remedial action in order to minimize
adverse impact to clean areas including the large pond.
the
any
20
-"-- -
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-
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,._.~ n ---
-- -- - 0"- - ----
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Woodward-Clyde Consultants
12.
Source of Comment:
Audubon Letter - 8/13/86
Dorothy S. Kaser, Chair
Response From:
Robert Leighton, wce
Comment
That an on-site leachate well located beneath the fill material in a
semi-confining bed of the shallow aquifer contains contamination from
the source contaminants.
Response - Robert Leighton, WCC
The leachate sample from the monitor well, which is screened below the
fill area, contained cadmium, chromium, lead and zinc in concentrations
well above Primary Drinking Water Standards. The lead concentration
measured is forty times the Drinking Water Standard- Cyanide
concentrations in these samples were below the detection limit.
The leachate also contained trace concentrations of phthalates,
chlorobenzenes, phenolics and significant concentrations of volatile
aromatic hydrocarbons (ethyl benzene, toulene, and xylenes}. However,
these contaminants are contained by the hydrogeological characteristics
of the site and are not migrating off-site.
21
..
~?:~~~{~:::E..-:r..':'_~:.-~.~ ~.J.~ . '~~-J: ""T~J~,'
- --- .-
"--
-------
APPENDIX B
Department Of The Interior
Fish And Wildlife Service
Natural Resource Demage Assessment
Release From Claims
-------
, Unil_J States Department of tIle Interior
OFFICE OF THE SECRETARY
\\'ASHI1'\GTO:.." D.C. 2024-0
. filAH I '{ i'~35
ER 84/1508
.' .
~ .
'. ~;.' .. .. .. ..." .' -.."
.
~Ir. Gene Lucero, Director
Office of Waste Programs Enforcement
Environmental Protection Agency
401 M Street, S.W., (Room S364N) WH 527
Washington, D.C. 20460
.- - - -. ~ - '-
':, JUL -.7. /986
: i!:
. ~ q .
'.--"'----'-.:
Dear !\lr. Lucero:
This is a follow-up letter to the one sent to you on ~lay 28, 1985, regarding a preliminary
natural resources survey by the Department of the Interior of the p"ioneer SAnd site.
Warrinf;ton. Escambia Countv, Florida.
"
We hav~ now reviewed the WOOdWll:-d-CJyde site investigation report on the site that was
prepared for the Florida Department of Environmental Regulation. The report was not
complete when our earlier letter (attached) was sent to you. The report confirms that.
the contaminants dumped at this site from 1973 to 1979 have generally re:-nained in place
and do not pose an immedinte danger a way from the disposal area.
. "
We therefore conclude that there are no lands or facilities under the Department of the
Interior's trust which have been impncted by contaminants from this site. There is no
documentable evidence thllt migratory birds, anadromous fish, or marine mammals have
been impacted, and we do not believe that there have been significant contaminant
impacts on endangered or threatened species. We seen no cause of action for, and would
be willing to grant a release from, any claims for damages from the Pioneer Sand site, to
natura} resources under trustee::ship of the Secretary of the Interior.
Sincerely
./ ,i ,(
~~c!'\. ~~.. ,~ /..,-/'(
~~ Blanchard, Director
, Office of Environmental Project Review
cc:
Nancy Deck/EPA
~~Bert Cole.
7/7/86
EPA. Atlanta
~
-------
1-
APPENDIX C
waste Engineering
Comments To Draft
Record Of Decision
-------
CATE:
OCT 07 1986 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
----
SU8JECT: Review of the Draft Record of Decision
for the Pioneer Sand Site, Pensacola, Florida
OM: Chief, FL/GA Unit
Waste Engineering Section
. TO: Jan Rogers Cl7t-
. Ranedial Acti& Section
J:Ouglas C. McCurry, Chief
Waste Engineering Section
The review of the "Draft Record of Decision" for the Pioneer Sand Site has
been carpleted by my staff. The remedial action alternative selected,
Alternative Nine, appears to be econanically, technologically, and en-
vironmentally sound, and appears to be the best of the available
alternatives.
A review of the Draft Feasibility Study for the Pioneer Sand Site was .
forwarded to you on July 24, 1986, (Copy attached). Although no JT'ajor
di6crepanc~es in the site study were detected during that review, the
ccrcme.nts or concerns expressed in that merrorandum should be addressed as
they pertain to the effectiveness of the rronitoring and selected remedial
~:
Mi chael J. Hartnett
Attachment
cc:
Greg Powell
'E PA Fill'''' 1320-6 (Rn. 3-76)
I
I
".
-------
APPENDIX D
Department of Health And Hunan Services
Agency For TOxic Substance And Disease Registry
Public Health Evaluation
For
pioneer Sand Site
-------
(.?t
.....~~
.,te
From
DEPARTMENT OF HEALTH & HUMAN SERVICES,
Public Health Service
Agency for T ox ic Substances
and Disease Registry
Memorandum
February 10, 1986
Ac ting Direc tor
Office of Health Assessment
nmR, RSSF.
c--.. ~ ,.-.. j- '"":- n --. rm
! n I: "", ,', \, r-:' : \ I -- ~
! ' ' ," , : ! !
FEB 14 1986
Subject Remedial Alternatives pioneer Sand NPL Site
Pensacola, Florida
To
! :"',
Uti;;
U' I " {!, ~: ., 1 I ' .,
i.:;! "" :..\_~ ' :.:c..' ~ ~
Mr. Chuck Pietrosewicz
Public Health Advisor
EPA Region III
Ei~:l-;:::;:C.; :"';
A ILAliT;. I GA,
The Environmental Protection Agency (EPA) requested that we review the
Feasibility Study to assess the public health adequacy of the public
health assessment and screening of remedial alternatives technologies',
and also to comment on which of the proposed remedial action alternatives
could result in the most effective and efficient protection of public
health at the Pioneer Sand Site near Pensacola, Florida~
The Pioneer Sand Site is a former sand borrow pit which operated for sev-
eral years with a Class III permit for disposal of inert materials. A
priority pollutant analysis of soil and water at the site detected signi-
ficant concentrations of 11 heavy metals and volatile organic compounds.
The main source of public health concern is the potential for leachate to
contaminate the underlying aquifer, which is the only local source of
drinking water for a large number of people in the county.
We concur with the stated conclusions
passed the screening process, or were
(4, 6, 9, 10, 11), adequately address
that the remedial alternatives that
included to fulfill EPA requirements
public health concerns.
Although no contaminants have been detected moving off-site, despite
extensive monitoring of groundwatert the high likelihood that organic
solvents may eventually enter the aquifer makes it necessary to reduce the
chance that water may enter the fill material from above or below. The
recommended alternativet No.9: fill area and sludge pond waste cover
system; leachate collectiont treatment and on-site disposal; and surface
water treatment and on-site discharget appears to be the most effective
and efficient remedial procedure to reduce the potential public health
threat;
We hope this information is useful to you.
~gO~1
-------
.'.~'U"'
-------
4-
,.::::1 '-
o
From
Subject
To
nU';\RTi\1rNT or Ilf,\I.TII .~ IIUr-.1I1N S[I~VIC[~;
F\I!)lic Hea!:h Service
ASt"1CV : or T e" ic SlJ b$:ances
JncJ Dis~a~'1 Reg;: try'
rVl e m 0 ran d U 111
. l' : \
.......1.':'"
2 2: J::~ .::.:;
Acting Director
Office of Health Assessment
Additional Soil Samples; Pioneer Sand NPL Site
Pensacola, Florida, 51-86-177
Mr. Chuck Pietroseyicz
Public. Health Advisor
EPA Re[;ion III
EXECUTIVE SUMMARY
The Environmental Protection Agency (EPA) requcsted that the Agency fo~
Toxic Substances and Disease Registry (ATSDR) review additional so~l
samples from the Pioneer Sand Site.
Altho\1Sh PCBs were found on-site in
soil samples, the highest levels found yere below the range yhere sub-
stantial human uptake has been reported.
peEs were not detected in the
aquifer or in leachate, so there is little likelihood that PCBs yill
migrate off-site.
The on-site health risk from peEs yill be quite small
follo~ing the proposed remedial actions, and tIle health risk off-site fro~
PCBs is insignificant.
For these reasons, ye do not Yish to alter our previous conclusions and
recommendations (February 10, 1986, letter).
MATERIAL REVIEUED
~emo from EPA Region IV,
Remedial Project Manager, to Chuck Pietrosewicz,
ATSDR Liason.
Review of additional PCB soil data from the Pioneer Sand
t:?L site.
Includes data package dated July 9, 1985.
Letter from Woodward-Clyde (Tallahassee) to Ron Leins, Florida Depart~en.:
of Environmental Regulation; copy to EPA RCGion IV, E~ergency Response
Eranch.
Results of reanalysis of soil PCB sa~plcs da~ed June
25, 1935.
;""--"'''h'-7:-~::f';-:;:-
.~,."--:.."...,,. ,:::-
.~-~..io,,,-'.
;:-~~--
......,,";~"""'-"'--"'..IL.i'L --.-
-~
- ----
-------
/
,~ : '." ,
r.,£,C 2 - Mr. Chuck l'ict..!:o~cwlcz
BACKGROU!\D
We previously reviewed the fe~sibility study.
The Pioneer Sand Site is a
former sand borrow pit which is used illeg~lly for dispcsal of hazardous
wastes and materials.
Significant concentrations of 11 heavy metals and
volatile organic compounds were detected in soil and water on-site. The
main public health concern is potenl:ial contamination of the under- lying
aquifer.
DISCUSSION
50il samples taken on-site show detectable levels of PCB for five co~-
pounds: Araclor 1242. 1248. 1254. 1260. and 1268.
levels were 9, 43, 58, and 69 ppm.
The four highest PCS
PCB contamination appears to be limited to soi1
In the fill area on the
site.
PCBs adhere tightly to soils and therefore migrate slowly.
They
have very low solubility in w~ter. and none have peen detected in water
samples on-site or off-site.
These observed levels are not alarmingly
high in any case.
ATSDR's current policy is that PCBs in residential soil
levels up to about 100 pp~ do not constitute
a si~nificant
health risk
under usual conditions.
CONCLUSIONS
Although PCBs were found on-site in soil samples, the highest levels found
were below the range where substantial human uptake has been' reported.
PCBs were not found in the aquifer or in leachate, so there is little
likelihood that PCBs will migrate off-site.
The on-site health risk will
be quite small following the proposed remedial actions, and the health
risk off-site is insignificant.
. J j /~ ;1
, /{/\ ("-- C/'t1 /J, ~("l~
v~effreY A. LybHger, >1D.
-~-
~--- - ------.----- '
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'---,-;.~,~ -.' ~.-,--'':'::,,'~'''.
-------
APPENDIX E
State OF Florida
Department of Environmental Regulation
Letter Of Concurrance
For The
Selected Remedy
-------
STATf OF FLORIDA
DEPARTMENT OF ENVIRONMENTAL REGULATION
TWIN TOWE RS OFFICE BUILDING
2600 BLAIR STONE ROAD
TALLAHASSEE, FLORIDA 32301.8241
BOB GRAHAM
GOVE RNOR
VICTORIA J. TSCHINKEL
SECRETARY
September 24, 1986
Mr. Jack Ravan
Regional Administrator
United States Environmental
Protection Agency
Region IV
345 Courtland Street, N.E.
Atlanta, Georgia.
Dear Jack:
The Florida Department of Environmental Regulation agrees with
and commits to remedial alternative number TIine recommended in
the final feasibility study for the Pioneer Sand Superfund Site
in Escambia County, Florida.
This alternative includes a cover system for the fill area and
sludge pond area; leachate collection, treatment and on-site
disposal; surface water treatment with on-site discharge; and
long term monitoring. The alternative alleviates all existing
and potential health effects, presents no new public health
hazards and sUbstantially reduces the threat to the surface and
groundwater.
The present worth cost estimate for the selected alternative is
$462,000 for capital construction costs, and $47,000 for the
first year operation and maintenance. The state will provide 10
~ercent of the capital, treatment and disposal costs, or about
$50,900, through the State Water Quality Assurance Trust Fund.
We are also committed to monitoring and maintenance of the site
.- begiri~ing one year after construction is complete.
,"' . '. ; . ~ ~. I~.' r :...~)
We look forward'~o participating with the U. S. Environmental
. Protection Agency in the successful implementation of this
project.
Sincerely,
flyiJ '
Victoria J. Tschinkel
Secretary
VJT/ps
Protecting Florida and Your Quality of Life
.'.
-------
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