soil and groundwater remediation at rr-72 former …this document presents the basis of design for...

FINAL

BASIS OF DESIGN

SOIL AND GROUNDWATER REMEDIATION AT RR-72 FORMER RIFLE RANGE

MCX SERVICE STATION MARINE CORPS BASE

CAMP LEJEUNE, NORTH CAROLINA

CONTRACT TASK ORDER 0284

MAY 23,1995

Prepared For:

DEPARTMENT OF THE NAVY ATLANTIC DIVISION NAVAL FACILITIES

ENGINEERING COMMAND No$olk, Virginia

Under:

LANTDIV CLEAN Program Contract N62470-89-D-4814

Prepared by:

BAKER ENVIRONMENTAL, INC. Coraopolis, Pennsylvania

TABLE OF CONTENTS

Section

INTRODUCTION .......................................................... 1

PURPOSE ................................................................. 2

BACKGROUND ............................................................ 2 Site Description ....................................................... 2 SiteHistory .......................................................... 2 Site Topography and Geology ............................................ 3 SiteHydrogeology ..................................................... 3

SITE REMEDIATION GOALS ............................................... 3

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

12.0

MOBILIZATION AND PREPARATORY WORK ......................... 4

MONITORING, SAMPLING, TESTING, AND ANALYSIS ................. 7

SITE WORK ....................................................... 10

SURFACE WATER COLLECTION AND CONTROL .................... 11

GROUNDWATER COLLECTION AND CONTROL ..................... 11 5.1 Groundwater Recovery Trench ................................... 12 5.2 Groundwater Treatment System ................................... 13 5.3 Infiltration Gallery ............................................. 14

AIR POLLUTION/GAS COLLECTION AND CONTROL ................. 15

SOLIDS COLLECTION AND CONTAINMENT ......................... 15

DECONTAMINATION WATER COLLECTION AND CONTAINMENT .... 15

DRUMS, TANKS, AND MISCELLANEOUS DEMOLITION AND DISPOSAL 15

OFF-SITE TREATMENT ............................................ 16

SITE RESTORATION ............................... ................ 16

DEMOBILIZATION ................................................ 16

ii

TABLES

Table 1 Groundwater Remediation Endpoints . . . . . . . . . . . . . . . . , . . . . . . . . . 5

APPENDICES

A Construction Schedule B Recovery Trench and Infiltration Gallery Design Calculations c Laboratory Data for W-6 and MW-13 D Groundwater Treatment System Equipment Information E Electrical Voltage Drop Calculations

. . . 111

BASIS OF DESIGN

SOIL AND GROUNDWATER REMEDIATION AT

RR-72 FORMER RIFLE RANGE, MCX SERVICE STATION

MARINE CORPS BASE,

CAMP LEJEUNE, NORTH CAROLINA

INTRODUCTION

This document presents the Basis of Design for soil and groundwater remediation at a former

underground storage tank (UST) site located at RR-72, Former Rifle Range, MCX Service Station,

Marine Corps Base (MCB), Camp Lejeune, North Carolina. It has been prepared by Baker

Environmental, Inc. (Baker) for presentation to the Department of the Navy (DON), Naval Facilities

Engineering Command, Atlantic Division (LANTDIV) under Navy Clean Contract Number N62470,

and in accordance with LANTDIV’s Scope of Work dated September 26,1994.

The DON is implementing a remedial action at RR-72, as part of the UST management program for

MCB Camp Lejeune. The goal of this action is to remediate groundwater contaminated by previous

releases of product from the USTs located at the site. It is the intent of the DON and of MCB Camp

Lejetme, to remediate the site as described in the Corrective Action Plan (CAP) for RR-72, which

was prepared by Baker (Baker, 1994). The CAP was prepared to meet the requirements of the North

Carolina Department of Environment, Health, and Natural Resources (DEHNR), “Groundwater

Section Guidelines for the Investigation and Remediation of Soils and Groundwater.” The CAP

identified the main components of the proposed groundwater collection and treatment system, and

presented a conceptual design of this system Using this conceptual design as a starting point, Baker

has developed a performance based design for the groundwater collection and treatment system.

LANTDIV intends to use a Remedial Action Contractor @AC) to implement this remedial action.

In this report the terms “RAC” and “Contractor” are used interchangeably.

PURPOSE

The purpose of the Basis of Design is to present LANTDIV with background data on the project,

describe the most important elements of the remedial design, and to present any assumptions used

in the design. This document is not intended to be part of plans and specifications to be utilized by

the Contractor for the execution of the remedial action. Baker assumes no responsibility for the use

of this report for any purposes other than the intended uses stated above.

BACKGROUND

MCB Camp Lejeune is a training base for the U.S. Marine Corps, located in Onslow County, North

Carolina The base covers approximately 236 square miles and includes 14 miles of coastline. MCB

Camp Lejeune is bounded to the southeast by the Atlantic Ocean to the northeast by State Route 24,

and to the west by U.S. Route 17. The town of Jacksonville, North Carolina is located north of the

base.

Site Descrintion

The Rifle Range Area is located in the southwest quadrant of MCB Camp Lejeune. The main

entrance to the Rifle Range is off State Route 2 10, approximately 1.5 miles southeast of the

intersection with U.S. Route 17 (See Drawing No. T-l).

The site consists of a service building (Building RR-72), that is located near the intersection of

Shelhock Drive and Powder Lane, the surrounding paved area where the fuel dispensing pumps were

located, and the area where three 4,000 gallon USTs were located (north of Building RR-72).

Site Historv

Based on information provided by Activity personnel, three USTs @R-72-1, RR-72-2, and RR-72-3)

were installed in 1956, and were used to store regular, unleaded, and premium gasoline. In May

199 1, UST RR-72-l was excavated and removed after a suspected product release. At this time,

product in USTs RR-72-2 and RR-72-3 was also removed. In December 1993, USTs RR-72-2 and

RR-72-3 were removed from the site.

2

Site TouograDhv and Geology

The surface topography at the site is generally flat to the north, east, and west of the ASTs. The

ground surface dips rapidly to the south towards a ravine. Surface water runoff flows toward the

same ravine (See Drawing No. C-l).

The Rifle Range area is underlain by undifferentiated layers of surficial, sedimentary clays and sands

of Pleistocene and Holocene age, extending to depths of 50 to 100 feet. Underlying the site,

. extending downward approximately 10 to 15 feet below ground surface (bgs), is a fine-grained sand

that contains some silty/clayey peat lenses. In addition, there is a sharp contact that separates sand

from the bluish-gray sandy clay which underlies the entire site.

Site Hvdroseolow

Based on data collected by Baker during site assessment activities conducted in February 1993,

shallow groundwater appears to flow southwest across the site toward the ravine. The top of

groundwater is encountered approximately 3 to 5 feet below the ground surface across the flat

portion of the site and at lesser depths as the surface topography falls toward the ravine.

Aquifer characterization tests were conducted by Baker during site assessment activities. During a

pump test at Recovery Well No. 1 (RW-l), the maximum flow rate that could be maintained without

the well being dewatered was 0.5 gallons per minute (gpm). At this rate, a maximum drawdown of

6.58 feet was recorded in RW-1. Based on these test results, a groundwater flow velocity of 248

feet/year was calculated.

SITE REMEDIATION GOALS

A determination of the extent of soil and groundwater contamination at RR-72 was the focus of a Site

Assessment Report prepared by Baker in May 1994. Subsequently, Baker prepared a CAP in July

1994, that presented remediation objectives and endpoints for the site. Based on the site assessment

activities completed at the site, remediation of the groundwater at the site is necessary. The CAP

concluded that, in general, the site cleanup goals are:

3

0 Contain migration of the groundwater contamination plume.

0 Reduce contaminant concentrations in the groundwater plume to North Carolina

Water Quality Standards (WQS).

In addition, the CAP also recommended remediation endpoints to address dissolved phase petroleum

contamination in the groundwater, and to meet accepted State guidelines for USTs. The remediation

endpoints for petroleum contamination in groundwater at the site are the State WQSs, which are

listed in Table 1 for the following contaminants detected at the site: Benzene, ethylbenzene, ethylene

dibromide (EDB), 1,4dichlorobenzene, and total xylenes.

It should be noted that the analytical results from soil sampling indicted that remediation of soil at

the site is not necessary. Total Petroleum Hydrocarbons (TPH.) concentrations in the soil do not

exceed 10 parts per million (ppm), the State of North Carolina action limit, or the site-specific

cleanup goal of 120 ppm developed by a Site Sensitivity Evaluation (SSE) completed as part of the

Final Site Assessment Report. However, conf%rnation soil sampling should be performed by the

Contractor in areas where soil is excavated, to verify that these soils do not exceed the site cleanup

goal for soil.

The following sections of this Basis of Design present the elements of the remedial action by

Hazardous, Toxic, and Radiological Waste (HTRW) account as defmed in the Remedial Action

Contracts Delivery Order Requirements Package Guide, NEESA 20.2-062, June 1992. Specific

HTRW Account Numbers are provided for reference with each section. A proposed construction

schedule, which lists project tasks by the HTRW account, is provided in Appendix A. A project

construction cost estimate is provided under a separate cover.

1.0 MOBILIZATION AND PREPARATORY WORK (HTRW Account No. 33.01)

Mobilization involves the acquisition, delivery, and setup of the necessary construction equipment,

material, and temporary facilities at the site. This task also includes the mobilization of the necessary

personnel to perform the work. In addition, during the mobilization period, the Contractor will

prepare all necessary pre-construction submittals, as described in Section 010 10,

4

TABLE 1

GROUNDWATER REMEDIATION ENDPOINTS RIFLE RANGE MCX SERVICE STATION,

MCB CAMP LEJEUNE, NORTH CAROLINA CONTRACT TASK ORDER 0284

I-

Parameter

Benzene

Ethylbenzene

EDB @)

1 ,CDichlorobenzene

Total Xylenes

Sampling Number of North Maximum Point with Sampling

Carolina Concentration Highest Points Above WQS (” Detected Concentration the WQS

1.0 357 MW-3 6

29 1090 M-W-3 6

0.005 100 RW- 1 1

1.8 110 RW-1 1

400 1900 HP-4 4

Notes: (‘) Water quality standard (‘) Ethylene dibromide

5

“General Paragraphs”, of the contract specifications. These specifications allow the Contractor up

to sixty days to prepare and submit the necessary pre-construction submittals.

The Contractor shall provide temporary facilities, including a Contractor staging/decontamination

area, a stockpile area, and temporary utilities, as necessary to complete the work.

Permits (33.01.01.05)

1 To meet State of North Carolina, Department of Environment, Health, and Natural Resources

(DEHNR), Division of Environmental Management @EM) regulatory requirements for remediation

of petroleum contaminated sites, a Non-Discharge Permit will be required for disposal of the treated

groundwater via an infiltration gallery. The permit application must address the requirements of

DEHNR regulations, as contained in 15A NCAC 2H.0200 (Waste Not Discharged To Surface

Waters). This permit application will be completed by Baker and submitted by the DON, with

assistance from the Base. In addition, because the groundwater treatment system will use an air

stripper which will produce an air discharge, the State requires that the treatment system be

registered with the State.

If it becomes necessary to consider discharge of the treated groundwater to a surface water, such as

via a storm sewer, a State of North Carolina NPDES General permit will be required, in accordance

with 15A NCAC 2B.0 100 (Wastewater Discharged to Surface Water).

.

In addition, the proposed work will require the abandonment of certain monitoring wells located at

the site. The Contractor shall be required to meet the requirements of 15A NCAC 2K.0214, which

specifies monitoring well abandonment procedures.

The Contractor will also have to arrange for any required Base permits, which would include any

temporary utilities, and an excavation permit.

2.0 MONITORING, SAMPLING, TESTING, AND ANALYSIS (HTRW Account No.

33.02)

The Contractor shall be required to submit to LANTDIV for approval, a Sampling and Analysis Plan

(SAP) describing the proposed sampling, analytical, and quality control procedures for the data

collected during the performance of work (See Section 0 10 10, “General Paragraphs” of the contract

specifications). The SAP shall ensure that all chemical data generated are scientifically accurate and

legally defensible. The SAP shall describe the quantity, frequency, and location of soil and water

samples to be collected and analyses to be performed.

The type and quantity of testing shall be based on the requirements set forth in the specifications (and

the Contractor’s health and safety plan and air monitoring plan) and as required during the project.

All required testing, documentation, and submittal of test results will be the responsibility of the

Contractor.

Air Monitoriw (33.02.03)

The Contractor shall develop and implement an air monitoring plan to characterize site air with

regard to personnel safety and off-site (perimeter of the active work area) migration of contaminants

as a result of site activities. The Contractor shall perform real-time monitoring for organic vapors

with a PID- or FID-type volatile organic detector and for explosive atmospheres with an

explosimeter. Action levels shall be identified in the Contractor’s Health and Safety Plan and Air

Monitoring Plan subject to the approval of the NTR.

Air Samding

High-volume air sampling shall be used to quantify any release of toxic particulates associated with

remedial work at the project site in accordance with OSHA requirements for worker health and

safety.

Water Samnlin~ (33.02.05)

The Contractor shall collect water samples for chemical analysis from the water generated as part

of the remedial action including, but not limited to, spent decontamination fluids, groundwater and/or

surface water collected from dewatering activities, and groundwater collected during remediation

and treated via the on-site groundwater treatment system. Water sampling shall occur at the

following locations and frequencies, depending on the source:

Suent decontamination fluids and liauid collected from dewaterinp activities

Collect one composite sample per tanker or one composite sample per 10 drums.

Groundwater from the on-site rzroundwater treatment system

Samples shall be collected from four locations to monitor and determine the performance of the

groundwater treatment system: at the recovery trench, the infhtent to the air stripper, the effluent

from the air stripper, and the effluent from the carbon adsorbers.

Samples shall be collected in accordance with the following schedule:

0 During the first 30 days of operation collect one sample fkom each of the four

locations at system startup, and ever 10 days thereafter (i.e., day 0, 10,20,30).

0 During day 3 1 through 90 collect one sample from each of four locations every 15

days (i.e., day 45,60,75,90).

0 During day 9 1 through 180 collect one sample from each of four locations every 30

days (i.e., day 120, 150, 180).

Soil Samuliw (33.02.06)

Soils at the site are not expected to be contaminated at levels above the remediation goals for the site

(120 ppm TPH). However, the Contractor shall collect samples from excavated soils to verify that

- 8

the soils do not contain TPH contamination at concentrations greater than 120 ppm (See Drawing

No. C-2). One (1) soil sample shall be collected for every 400 square feet of surface area to be

excavated. The Contractor shall follow the sampling procedures presented in the Contractor’s SAP.

Testinp and Analvsis (33.02.09)

The Contractor shall adhere to EPA &am-of-custody procedures during the collection, transport, and

analyses of all samples. The Contractor shall perform in-field testing and shall arrange laboratory

analyses of all samples to conform with NEESA Level C Quality Assurance Requirements. Samples

shall be analyzed as follows:

Water Testing

Potentially contaminated water generated during the remedial action including, but not limited to,

water from decontamination of personnel and equipment, shall be analyzed for the following

parameters:

0 TCLP Metals - EPA Methods 7060,7080,7130,7190,7420,7470,7741,7760

0 TCLP VOAs - EPA Method 8240

0 TCLP SVOAs - EPA Method 8270

Untreated (mfluent) and treated groundwater (effluent) from the on-site groundwater treatment

system shall be analyzed for the following:

0 VOAs - EPA Method 602

0 TAL Metals - EPA Method 6010

0 Total Suspended Solids (TSS)

0 Total Dissolved Solids (TDS)

Soil Testing

Soil samples collected at the site shall first be analyzed in the field using the following procedure:

9

1. Field screen a composite sample of the excavated soil using rapid immunoassay in-field

screening tests for petroleum fuels (EPA Proposed Method 4030).

2. If the in-field screen test results are below 10 ppm, the soil shall be considered as

uncontaminated and shall be disposed of off-site at an appropriate facility (possibly the Base

landfill), or used on-site as backfill.

3. If the in-field screen test results are at or above 10 ppm, place the sample in an appropriate

sample container for shipment to a laboratory for waste characterization analyses to verify

contamination and notify the Government. Characterization analyses for soils shall include:

0 TPH - EPA Method 5030/8015 I

0 TCLP Metals - EPA Methods 7060,7080,7130,7190,7420,7470,7741,

7760

0 TCLP VOAs - EPA Method 8240

0 TCLP SVOAs - EPA Method 8270

0 Total Organic Halogens (TOX) - EPA Method 9020

In addition, the potentially contaminated soil shall contain no free liquid as demonstrated by

EPA SW-846 Method 9095, Paint Filter Liquids Test.

The results of the characterization analyses shall be used for documenting and/or manifesting the

soils prior to transport to an off-site soil recycling facility.

3.0 SITE WORK @ITRW Account No. 33.03)

Site work includes all clearing and grubbing, and construction of temporary roadways, staging areas,

and fencing. Clearing and grubbing will be limited to an area of less than one acre where access and

excavation is required and a staging area will be located. The Contractor shall propose disposal

options for all vegetation and, in particular, for trees greater than six inches in stump diameter which

shall be subject to approval by LANTDIV and/or the Activity.

10

The Contractor shall be required to install safety and erosion control (silt) fencing as indicated and

specified.

The Contractor shall be required to place excavated soil directly into dump trucks or roll-off boxes,

or provide an excavated soil staging area. The Contractor shall also provide a decontamination pad

for use during the remedial action.

4.0 SURFACE WATER COLLECTION AND CONTROL @TRW Account No. 33.05)

The Contractor shall be required to provide devices or facilities as necessary to prevent surface water

from contacting contaminated materials (i.e., soil, equipment, etc.) during construction activities, and

flowing off-site. The Contractor shall be required to keep all excavated areas dewatered during

construction and to collect, sample, analyze, and dispose of any water accumulated in the excavation

and staging areas.

5.0 GROUNDWATER COLLECTION AND CONTROL (HTRW Account No. 33.06)

The focus of this remedial action is the collection and treatment of contaminated groundwater from

the site. The CAP identified the main components of the proposed groundwater collection and

treatment system, and presented a conceptual design of this system. Using this conceptual design

as a starting point, Baker has developed a performance based design for the groundwater collection

and treatment system. The main components of the system include a groundwater recovery trench,

a groundwater treatment system, and an infiltration gallery. The proposed remediation alternative

will provide a closed loop treatment system, which is consistent with the State of North Carolina’s

policy of implementing the most efficient and cost-effective remediation system for UST sites,

provided the system does not degrade groundwater quality.

A description of each of the main components of the remediation system are presented in the

following subsections, which are referenced to the applicable HTRW Work Breakdown Structure

(WBS) tasks.

11

5.1 Groundwater Recoverv Trench (HTRW Account No. 33.06.02)

Based on a review of site hydrogeological data, and the results of the pump test conducted at the site,

the CAP recommended the construction of a groundwater interceptor, or recovery, trench

downgradient of the contaminant plume. The recovery trench will create an area of higher

permeability, which will be used to collect groundwater.

Baker used hydrogeological data from the Site Characterization Report to estimate the rate that

groundwater will be recovered. Hydraulic conductivity (K) values from three nearby monitoring

wells, as determined from drawdown tests, were used to determine an average K for the site. Darcy’s

Law (Q=KiA) was used to estimate a groundwater flow rate into the recovery trench of

approximately 3 gallons per minute. Baker’s design calculations are provided in Appendix B.

Baker’s design calls for a recovery trench approximately 75 feet long, 3 feet wide, with a nominal

depth of 8 feet. The trench will be backfilled with a gravel suitable for the application, and a

geotextile liner will be installed on the downgradient side of the trench to prevent groundwater from

migrating through the recovery trench.

Baker has incorporated a collection sump, or well, into the trench design. A pneumatic pump

capable of recovering groundwater and free product will be mounted in the sump (versus the electric

pump noted in the CAP). A pneumatic pump is better suited to the low flowrates and the need for

variable pump control.

Recovered groundwater, and any free product, will be pumped to the treatment system through a

small diameter (1 or 1.5inch) pipe or tubing, which will be installed within a casing pipe. This

arrangement provides secondary containment, and a more secure piping configuration. The piping

will be placed underground in a shallow trench, along with an air supply line to the pump.

In order to determine if the groundwater plume had migrated since the last sampling event, Baker

collected groundwater samples on December 2, 1994 from Monitoring Wells MW-6 and MW-13.

Samples were analyzed for BTEX components via EPA Method 602. While no BTEX components

were detected, the gasoline additive Methyl Tertiary Butyl Ether (MTBE) was detected in both wells,

12

possibly indicating that the leading edge of the plume is approaching these wells. Sampling data

from MW-6 and MW-13 is provided in Appendix C.

Based on the additional analytical data collected at the site, the recovery trench will be installed

between Monitoring Wells MW- 6 and MW-13. This location is approximately 50 feet south of the

location shown in the CAR, and is located in an area that is more accessible. This location also

reduces the overall trench depth approximately 4 feet, as the ground elevation at the proposed

location is approximately 5 feet lower than that shown in the CAR.

The Contractor shall be required to provide devices or facilities as necessary to collect and remove

groundwater encountered during the recovery trench construction activities. The Contractor shall

be required to keep all excavated areas dewatered during construction and to collect, sample, analyze,

and dispose of any water accumulated in the excavation and staging areas.

5.2 Groundwater Treatment System O!XTRW Account No. 33.13)

The CAP recommended that the grotmdwater treatment system be a preassembled unit, mounted to

an equipment platform at the factory, in order to minimize on site construction time, and provide a

system that has been assembled and tested prior to shipment to the site. There are a number of

equipment manufacturers who have developed and currently manufacture this type of equipment.

Baker has specified a completely preassembled, containerized and enclosed treatment system,

mounted on a steel I-beam platform, capable of being shipped and off-loaded at the site by a fork lift

or crane without damaging the equipment, inter-connecting piping, or electrical conduit. The

enclosure will include an access door, and/or removable wall panels for access to the equipment.

The wall and ceiling panels shall be insulated, and the enclosure will have an explosion-proof heater,

interior light, and exhaust fan. All electrical components within the enclosure shall conform to the

National Electrical Code’s requirements for Class I, Division I, Group D (explosion proof). All

electrical components mounted outside the enclosure shall be furnished in NEMA 3R panel(s).

The treatment system is designed to remove the volatile organic contaminants in the groundwater

down to concentrations below State Water Quality Standards, as listed in Table 1. The primary

treatment components to be used to treat the contaminated groundwater at the site are:

13

0 Oil/water separator

0 -Air stripper with effluent sump

0 Suspended solids bag filter

0 Two liquid phase carbon adsorbers (approximately 350 pounds of activated carbon

in each adsorber)

0 Compressed air system

0 Total fluids pumping system for recovery trench

All this equipment, with the exception of the total fluids pump, will be preassembled in the platform

enclosure, and will be furnished with all the necessary interconnecting piping, controls, and power

supply conduit. Baker specified a treatment system capable of treating up to 10 gallons per minute.

The process flow diagram of the treatment system is shown on Drawing No. C-4, and additional

information on the equipment is included in Appendix D.

5.3 Infiltration Gallem CHTRW Account No. 33.18)

After the recovered groundwater is treated via the on-site treatment system, the effluent will be

pumped to an infiltration gallery for recharge into the shallow aquifer. The gallery has been

designed much the same as a septic tank tile field, and incorporates a distribution header, and

individual laterals. The size of the infiltration gallery was based on an infiltration rate of 1.5 gallons

per square foot of draiige area per day (as recommended by 15A NCAC 02H.O400), and a design

flow rate of approximately 3 gallons per minute, or 4,300 gallons per day. The gallery has been

located over the area where the USTs were removed, which is upgradient of the recovery trench.

Baker’s preliminary design calculations for the infiltration gallery, and supporting documents, are

provided in Appendix A. The Contractor shall use these preliminary calculations to develop specific

construction plans and details for the infiltration gallery.

14

6.0 AIR POLLUTION/GAS COLLECTION AND CONTROL @TRW Account No. 33.07)

The excavation and loading activities during installation of the recovery trench and infiltration

gallery will most likely generate some dust emissions. Soil, haul roads, and other areas disturbed

by operations shall be treated with dust suppressants such as water to minimize emissions.

7.0 SOLIDS COLLECTION AND CONTAINMENT (HTRW Account No. 33.08)

In order to install the groundwater collection trench and infiltration gallery approximately 3 15 cubic

yards of soil will be excavated. If the soil sampling and analysis required by Section 2.0 determines

that any of this soil is contaminated, the Contractor shall prepare a staging area for stockpiling the

soil, or shall make arrangements for the soil the be loaded directly into dump trucks or roll-off boxes,

prior to removal for off-site disposal by the Contractor.

If the soil sampling and analysis determine that the soil to be excavated is not contaminated, the

Contractor shall make all necessary arrangements for the off-site disposal of the excavated soils.

8.0 DECONTAMINATION WATER COLLECTION AND CONTAINMENT (HTRW

Account No. 33.09)

The Contractor shall provide a decontamination pad to collect liquids from the decontamination of

personnel, earth-moving equipment, transportation trucks, and sampling equipment. The fluids will

be collected in tanker trucks, drums, or other appropriate containers for off-site disposal at an

appropriately permitted facility subject to LANTDIV and MCB Camp Lejeune approval.

9.0 DRUMS, TANKS, AND MISCELLANEOUS DEMOLITION AND DISPOSAL

@TRW Account No. 33.10)

No drums, tanks, or miscellaneous demolition and disposal are anticipated in this project except for

spent personal protective equipment (PPE) and other nonhazardous solid waste which shall be

disposed of in accordance with EPA Guidance (EPA Publication 9345.3-03FS).

15

10.0 OFF-SITE TREATMENT (HTRW Account No. 33.18)

Any contaminated soil encountered at the site that has been placed in an on-site staging area shall

be loaded onto trucks or roll-of boxes and transported to an off-site soil recycling facility.

Manifesting is not required if the contaminated soil does not meet the characteristics of a hazardous

waste, as defined in 40 CFR 261. Miscellaneous non-contaminated waste (i.e., refuse and spent PPE)

shall be loaded onto trucks or roll-off containers and transported to a North Carolina-permitted solid

waste landfill or other appropriate facility subject to LANTDIV and MCB Camp Lejeune approval.

11.0 SITE RESTORATION @TRW Account No. 33.20)

The excavated areas shall be backfilled with non-contaminated, previously excavated soil or off-site

borrow material and regraded to the contours shown on the reference drawings. Fill material

provided from off-site will be placed and compacted in accordance with the contract specifications.

12.0 DEMOBILIZATION (HTRW Account No. 33.21)

All temporary facilities, equipment, and supplies acquired for this contract shall be removed from

the site upon completion of the remedial action.

Post-construction submittals shall include (1) a punch list showing correction of all listed items; (2)

a letter from the Contractor certifying completion of all contracted work in accordance with the

contract conditions, applicable regulations, and standards of practice; (3) a completed project current

condition with “as-built” drawings or survey for the entire site; (4) submittals, in one collated

document, of all quality control daily reports, samples, results of the analysis of samples, corrective

actions (if required, taken to correct deviations from the plans and specifications that were pre-

approved by LANTDIV), and results of corrective actions; and, (5) submittal in one collated

document of all quality assurance samples, and corrective actions (if required, taken to correct

unacceptable deviations from required quality standards).

The Contractor shall submit to LANTDIV a detailed report summarizing the remedial action, lessons

learned, and recommendations for inclusion in future similar contracts.

16

APPENDIX A CONSTRUCTION SCHEDULE

APPENDIX B RECOVERY TRENCH AND INFILTRATION -

GALLERY DESIGN CALCULATIONS

S,O.No. &?470- c2?34-iooo -05000 Subject: IflFILTRATIObJ GAu-ER’f @ RR.72

MC0 CAIJlP LEJEUFJE , NBC, Sheet No. A--Of3

Drawing No.

Computed by m Checked By Tx Date z-16 -44

S.O. No. bZ470 - as4 d 1000 - 05om

Subjectf 1MFIL’RAVW G&L&S’f’ Q RR 72 MC@ CAMi l-tzEUtd& . flJc Sheet No. ___ 2 of 5.

Drawing No.

Computed by J3)c Checked By x Date 12-16-44

s.o.No. 6;7470- 284 -loo0 - 05000

Subject: ItiFlLtiil7~~ 6Am t% f8?72 Ma3 w4PGs?mJE , rJJ* Sheet No. .-.?$- of ~ 3

Drawing No.

Computed by m CheckedBy w Date i-4-95

APPENDIX C LABORATORY DATA FOR MW-6 AND MW-13 -

- CEIMIC

CORPORATION “Analytical Chemistry for Environmental Management”

BTEX ANALYSIS VOLATILE ORGANICS ANALYSIS

SW846 METHOD 8240

Client: Baker Environmental

Client Sample ID: RR72-MW6-W-03

Date Sampled: 12/02/94

Date Sample Received: 12/05/94

Matrix: Aqueous

Laboratory ID: 941050-04

Date Sample Analyzed: 12/08/94

Associated Method Blank: V61208-B2

Dilution Factor: 1

Concentration in: PglL (ppb)

Target Analyte Sample Quantitation Concentration Limit

Methyl t-Butyl Ether 74 1 Benzene ND 1 Toluene ND 1 Ethylbenzene ND 1 Total Xylenes ND 1

ND = Not detected

Surrogate Spike Recovery

Surrogate Compound Recovery( %) QC Limits( %)

1 ,ZDichloroethaned4 102 76 - 114 Toluened8 99 88 - 110 Bromofluorobenzene 97 86 - 115

Reported by: Approved by:

10 Dean Knauss Drive, Narragansett, R.I. 02882 l (401) 782-8900 l FAX (401) 782-8905 BTEX Page 6

BTEX ANALYSIS VOLATILE ORGANICS ANALYSIS

SW846 METHOD 8240


Client Sample ID: RR72-MW13-W-03



Matrix: Aqueous

Laboratory ID: 94 105045

Date Sample Analyzed: 12/08/94.


Dilution Factor: 1

Concentration in: PglL (ppb)


Methyl t-Butyl Ether 23 1 Benzene 3 1 Toluene ND 1 Ethylbenzene ND 1 Total Xylems ND 1

ND = Not detected


Surrogate Compound Recovery( %) QC Limits(%)

1 ,ZDichloroethanedL 101 76 - 114 Toluened8 95 88 - 110 Bromofluorobenzene 99 86 - 115


BTEX Page 7

- CEIMIC CORPORATION

“Analytical Chemistry for Environmental Management”

TARGET COMPOUND LIST (TCL) VOLATILE ORGANICS ANALYSIS

SW846 METHOD 8240


Client Sample ID: RR72-DRM



Matrix: Aqueous




Dilution Factor: 1

Concentration in: pg/L (ppb)


Chloromethaue Bromomethane Vinyl Chloride Chloroethane Methylene Chloride Acetone Carbon Disulfide 1.1 -Dichloroethene 1,l -Dichloroethane 1 ,ZDichloroethene (total) Chloroform 2-Butauone 1,2-Dichloroethane 1 , 1,l -Trichloroethane Carbon Tetrachloride Bromodichloromethane 1 ,ZDichloropropane cis-1,3-Dichloropropene Trichloroethene Dibromochloromethane 1.1 ,ZTrichloroethane Benzene trans- 1,3-Dichloropropene Bromoform 4-Methyl-2-Pentanone 2-Hexanone 1,1,2,2-Tetrachloroethane Tetrachloroethene

ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

10 10 10 10 5

10 5 5 5 5 5

10 5 . 5 5 5 5 5 5 5 5 5 5 5

10 10 5 5

10 Dean Knauss Drive, Narragansett, R-I.02882 l (401) 782-8900 l FAX (401) 782-8905 Volatile Page 5

CEIMIC CORPORATION


TARGET COMPOUND LIST (TCL) VOLATILE ORGANICS ANALYSIS

SW846 METHOD 8240




Date Sample Received: 12105194

Matrix: Aqueous

Laboratory ID: 94105043



Dilution Factor: 1



Toluene Chlorobenzene Ethylbenzene Styrene Total Xylenes

ND 5 ND 5 ND 5 ND 5 ND 5

ND = Not detected


Surrogate Compound Recovery( %) QC Limits(%)

1 ,ZDichloroethaned4 103 76 - 114 Toluened8 98 88-110 Bromofluorobenzene 98 86 - 115


1oDean P!n auss Drive, Narragansett, R.I. 02882 l (401) 782-8900 l FAX (401) 782-8905 Volatile Page 6

CEIMIC CORPORATION


TARGET COMPOUND LIST (TCL) SEMIVOLATILE ORGANICS ANALYSIS

SW846 METHOD 8270





Matrix: Aqueous



Date Sample Extracted: 12/07/94

Date Sample Analyzed: 12109194

Associated Method Blank: S1207-B2

Dilution Factor: 1


Surrogate Compound Recovery( %) QC Liits(%)

2-Fluorophenol 46 2Xhlorophenold4 54 Phenol-d5 39 1,2-Dichlorobenzened4 46 Nitrobenzened5 53 2-Fluorobiphenyl 51 2,4,6-Tribromophenol 47 Terphenyld14 12 **

2i - 110 33-110 * 10 - 110 16-110 * 35 - 114 43 - 116 10 - 123 33 -141

* These limits are provided for advisory purposes. ** Surrogate recovery is out of the QC limits.


10 Dean Knauss Drive, Narragansett, R.I. 02882 l (401) 782-8900 l FAX (401) 782-8905

Semivolatile Paee 8

.

CEIMIC CORPORATION


TARGET ANALYTE LIST (TAL) TOTAL METALS

SW846 METHOD 6010





Matrix: Aqueous


Date Analysis Completed: 12/09/94

Dilution Factor: 1

Concentration in: mg/L @pm)

Target Analyte Preparation Sample

Batch Concentration Quantitation

Limit

Aluminum 1208 Antimony 1208 Arsenic 1208 Barium 1208 Beryllium 1208 Cadmium 1208 Calcium 1208 Chromium 1208 Cobalt 1208 Copper 1208 Iron 1208 Lead 1208 Magnesium 1208 Manganese 1208 Nickel 1208 Potassium 1208 Selenium 1208 Silver 1208 Sodium 1208 Thallium 1208 Vanadium 1208 Zinc 1208

5.4 ND ND

0.05 ND ND

21.3 ND ND ND 7.0

0.006 1.6

0.05 ND 1.2 ND ND 6.3 ND

0.02 0.02

0.2 0.2 0.01 0.01 0.01 0.01 0.5

0.02 0.04 0.04 0.1

0.005 0.5

0.02 0.04 0.5

0.01 0.01 0.5

0.01 0.02 0.02

ND = Not Detected


10 Dean Knauss Drive, Narragansett, R.I. 02882 l (401) 782-8900 l FAX (401) 782-8905 Metals Page 2

CEIMIC CORPORATION


TOTAL MERCURY

SW846 METOD 7470


Project No.: 941050

Date Samples Received: 12/05/94

Date Analysis Completed: 12/07/94

Concentration in: mg/L (ppm)

Client ID Sample Method

Laboratory ID Concentration Reporting Limit

RR72-DRM 941050-03 ND 0.0003

CSFF-DRM 941050-07 ND 0.0003

Method Blank 1207PBW ND

% Recoverv

0.0003

Control Limit

Laboratory Control 1207ICV 112 75-125% Sample

ND = Not detected

Reported by: -.

Y I

Approved by: &


CEIMIC CORPORATION


QUALITY CONTROL

LABORATORY CONTROL SAMPLE


Client Sample ID: Laboratory Control Sample

Project No.: 941050

Laboratory ID: QC

Matrix: Aqueous

Target Analyte Date Control

Analyzed % Recovery Limits

Reactive Cyanide

Reactive Sulfide

12/07/94 74 50-125% ,

12/07/94 78 50-125

Reported by: Approved by: w

10 Dean Knauss Drive, Narragansett, R.I. 62882 l (401) 782-8900 l FAX(401) 782-8905

* CEIMIC CORPORATION


INORGANIC ANALYTES


Client ID: RR72-DRM




Target Analyte

Method Reporting Date

Result Units Limit Analyzed

Flashpoint NC OF 200 12/08/94

PB 6.03 S.U. --- 12/07/94

Reactive Cyanide ND w/W 0.5 12/07/94

Reactive Sulfide ND w/W 1.3 12/07/94

NC = No Combustion ND = Not Detected



CHAIN OF CUSTODY

CHAIN OF CUSTODY WC& 2ZSOI Original Chain of Custody goes to Laboratory Page I of /

Analyses t!?

Samplers (Please print) L(D pPA: ‘Vo 0 .ja; v, c r

g.?s .E 2 --ikm~ce\o; \co&

E+J E< *‘r rn a3

Comp. 5 DATE Time Grab. Sample Identification

‘“9;” 17~ G R@,7&- ~wi-\d-o3 L 2 )( 7Av ‘$j2 @A (7 (ZR72-N\L3\3-‘vJ-O3 1, 2 x 7-i&

“9;: WI5 b RR7J - T) RrA L 5 % x x K Ro,tl,l ‘?$,3 be b c5FF - /v~.&,-bJ-03 I- 2 X 7-,\q \, I “9;: 123 6 CSF:F- (‘+,LdZZ-W -03 L Z )( 7- dq y

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Date/Time Received by (Signature) Datefime Remarks: (3-3-4Y

(4.30 -se< ReplG& L- 5atmpie tCICr)GC3yll Datemme Received by (Signature) Date/Time - p;(&;‘,\ xk!c y3002Wi/,ci‘-( J

Relinquished by (Signature) Da mrne ,/=,!,c.:TF c P

CEIMIC Corporation dean K&&i Drive, N$$ansett, RI 02882 (401) 782-8900 FAX (401) 782-8905 \ :

APPENDIX D GROUNDWATER TREATMENT SYSTEM -

EQUIPMENT INFORMATION

I Ejector Systems Incorporated

910 National Avenue, Addison, IL 60101-9612 QUOTATION

708-543-2214

l-$00.OIL-LEAK

Fax 708-543-2014

Baker Environmental Airport Office Park,

Quote # 942001-00

420 Rouser Road Bldg. 3 Date: 02/07/95

Coraopolis,‘ PA 15108 Terms: 30/20/5On30

Attn: Don Joiner Freight: prepaid and added

FOB Addison Phone: 412-269-6000 FAX: 4 12-269-2002

Quotation is valid for 60 days

Quote Specifications:

REF: Rifle Range Bldg. 72

SYSTEM ELECTRICAL: 3/60/208 service, brought to NEMA 3R exterior panel

Interior Electrical will be Class 1, Division 1, Group D.

Qtu PUMPING SYSTEM DESIGN CRITERIA:

Diameter Well Depth GTS Flow ---me -----_---_ ---_---__--- ---me ----em

1 6 inch 12 feet 3 ft. 3 9pm

TOTAL FLOW: 10 gpm @ 60 F LNAPL: PRESENT

WATER TREATMENT DESIGN CRITERIA: Dissolved Product: Di&&ge After ESI

Contaminant Concentration .

Air Stripper ----------------------------------------------------------

Benzene Ethylbenzene

357 ppb

zPes

1,090 ppb 1.0 ppb

19;;; I$ 29.0 ppb

-c 1 PPb

400.0 ppb < 1 PPb

.005 ppb < 1 PPb

1,4 DCB 110 ppb 1.8 ppb 3 PPb

1.7 ppb

We offer the following:

1 ON SITE Platform, enclosed 12'x8'. INCLUDING:

* INSULATED ENCLOSURE: 8'W x 12'L x 8.5'H with LIGHT, HEATER and THERMOSTAT

Equipment is mounted on a 8'W x 12'L steel platform with coated plywood deck. The enclosure consists of structural steel members and pre-assembled panels with aluminum skin. The enclosure incorporates one locking hinged door.

The side panels will be easily removable for additional access to the equipment for easier maintenance.

The breaker panel and control panel will be mounted on a vertical steel bracket attached to platform end. The bracket, panels and all conduits will allow for the removal of the enclosure side panels by one person. All electrical components located inside the enclosure

will be Class 1, Division 1, Group D explosion-proof. ;A;;;!le power connection (3/60/208) will be provided by

.

* ES1 STRIPPERATOR O-15 GPM Inte;;$ed process unit

* (2) Effluent Transfer Pump - l-1/2 HP with: (2) Transfer Pump Controls

44,857.44

Ejector Systems Incorporated

910 National Avenue, Addison, IL 60101-9812

STEMS

708-543-2214

l-800.OIL-LEAK

Fax 708-543-2014

Baker Environmental Quote # 94:001-00 Page #

with: Influent Totalizing Flowmeter with: with:

High/Low Air Supply Switch High Sump Level Switch

with: Interga 1 Product Storage Tank 100 ga.llon working capacity High Tank Level Switch

Standard Unit Includes: Oil/Water Separator

* 106 gallon operating capacity * adjustable product effluent weir

Air Stripper (1 tray) * cast aluminum blower * air pressure gauge * 6 removable nylon aeration tubes per tray

flexible wall, dual- 5/16" hole pattern Integral Effluent Sump

* 60 gallon capacity- * inspection/clean out hatch

Carbon Steel Construction * latched and gasketed lid * epoxy coated & lined

* COMPRESSED AIR SYSTEM 3 HP 11.0 CFM 8 150 PSI * pressure lubricated, cast iron block & heads * 80 gallon vertical receiver tank with relief

valve, auto drain valve, pressure switches and pressure gauge.

* SUSPENDED SOLIDS BAG FILTER * 2.1 sq. ft. surface area * 65 gpm flow ca acity * 100 psi coate B pressure tank * 25 micron filtration * 3 replacement bags included * quick opening clamp cover

* LIQUID PHASE CARBON ADSORBERS * 2 drums connected in series * 300 pounds carbon in each drum * 150 psi pressure rating * inlet and outlet pressure gauges * inlet and outlet sample ports * cam-lock hose connections

* TOTAL FLUIDS PUMPING SYSTEM FOR 1 WELL:

* 3"~ 36"L Utility Ejector * S2 single well controller * winch support with well mount * down well hoses and support * all addititonal straps, clamps and fittings

* HIGH LEVEL SHUT OFF SYSTEM * latching pump shut-off relay w/manual reset

and 3 dry contacts * compressor-mounted air shut off valve

.,,\ R

STEMS

708-543-2214

l-800.OIL-LEAK

Fax 708-543-20 14

Ejector Systems Incorporated

910 National Avenue, Addison, IL 60101-9812 . Baker Environmental jhi;;eg# 94:001-00

* NEMA 3R EXTERIOR MOUNTED CONTROLS * breaker panel with individual branch

breakers for all major components * control panel with magnetic starters, high

level shut off system controls, and all additional control circuits required for the system

* ALARM SYSTEM AUTO-DIALER * monitors up to (4) dry contacts input

channels * dials up to (4) phone numbers with message

acknowledgement * battery back-up with condition monitor * voice synthesized’ output

NET TOTAL: Start up cost is $70/hour plus expenses

David Ogilvie Sales Engineer

~PIPPP~~P~

44,857.44

Wl1V

~3ddI?US

O

&V

'

1

c

OUTSIDE

1IR :XHAU

I-

INSIDE

AIR CDMPR, - RCVR

SOLENOID

/---A I TOTAL FLUIDS

-

SHUT FF I I

AIR STRIPPER

FILTER CARBON

STRIPPERATIIR

FILTER REGULATOR

-

PUMP

UNLESS OTHEW!CE DATE

SPECLFED DIN. ARE IN INCI-ES mm,, ED TUNG 11/17/93 m, c-DA&b-- I F,JF(?TnR CYCTFMS INC.

PLATFORM P, & 1, Dm PACKp$gE,D TREi 4TMENT SYSTEM

I\lr LL DAI\IT: ,\n,uiE BLDG, 72 1 StzE JDRAVING NLUPER

-A CAMPBR72 PART tw!Bm

FINISH1 USED Ml

SCALE NONE WEIGHT SHEET 1 OF 1’

APPENDIX E ELECTRICAL VOLTAGE DROP CALCULATIONS -

THE AC RESISTANCE AND REACTANCE OF CABLES IN THESE CALULATIONS IS BASED- ON THE 1993 NATIONAL ELECTRIC CODE ( CHAPTER 9 ) INSTALLED IN STEEL CONDUIT.

:IRClJIT VOLTAGE _.. .-_.. .--.. .--. ‘#SE(S) : (ior 3) :fRCUIT WATTAGE : :IRCUIT AMPERES : :IRCUIT BREAKER SIZE : ‘MIN.” SIZE FEEDER(S) REQD FOR COMBINATION LOADS ON

208 VOLTS -.. .--.- 3 PHASE

25000 WATTS 69.4 AMPERES X 1.25 = 66.7 AMPERES 100 AMPERES

(1)NO. 3 WIRE or - KCMIL 1 (2)NO. - KCMIL r

l EXAMPLE WIRE SIZE INPUT = ( 12 = 12 AWG ) , ( “3/O = 3/O AWG ) 8 ( 400 = 400 KCMll l l PARALLEL “MIMIMUM” WIRE SIZE IS NO. ” l/O” AS PER THE N.E.C.

“REQUIRED” FEEDER WIRE SIZ * (I )NO l/O WireJKCMIL lG56OO C. M. “REQUIRED” FEEDER WIRE SIZ ** (2 ) NO Wiren<CMIL - CM. “REQUIRED” FEEDER WIRE SIZ l l ( 3) NO WirdKCMIL - CM. “REQUIRED” FEEDER(S) : ONE TWO THREE VOLTAGE DROP : (ACTUAL) 2.75 0.W 0.00 VOLTS VOLTAGE DROP : (ACTUAL) % 1.3 0.0 0.0 %

CIRCUIT IMPEDENCE : 0.039592 0 0 OHMS SINGLE FEEDER REACTANCE : 0.016500 - - OHMS SINGLE FEEDER RESISTANCE : 0.036 - - OHMS

VOLTAGE DROP : (DESIGN) 6.2 VOLTS VOLTAGE DROP : (DESIGN) % (M .03=% 3.0% DROP

( NOT FOR MOTOR ONLY LOADS ). i 3 j NO. - KCMIL (

YRCUITS TOTAL FEEDER LENGTH : 150 FEET LONG

‘MINIMUM” FEEDER WIRE SIZE - KCMIL - C.M. “MINIMUM” FEEDER WIRE SIZE - KCMIL - C.M. “MINIMUM’ FEEDER WIRE SIZE i3jNo. - KCMIL - C.M. VOLTAGE DROP : (ACTUAL) 5.22 0.00 0.00 VOLTS VOLTAGE DROP: (ACTUAL) 16 2.5 0.0 0.0 K CIRCUIT IMPEDENCE : 0.075215 0 0 OHMS SINGLE FEEDER REACTANCE : 0.0177w - - OHMS SINGLE FEEDER RESISTANCE : 0.075 - - OHMS

“MINIMUM” NUMBER OF FEEDER(S) : / ONE TWO THREE

N

SIZE INPUT = ( 12 = 12 AWG ) , (“3/O = 3/O AWG ) 8 ( 400 = 400 KCMIL MUM” WIRE SIZE IS NO. * irn”~s PER THE N.E.C.

IRCUIT WATTAGE: ’ 25000 WATTS IRCUIT AMPERES : 69.4 AMPERES X 1.25 = 66.7 AMPERES

CIRCUIT BREAKER SIZE: I[ -M AMPERES MIN.” SIZE FEEDER(S) REQ’D ----I ( 1 ) NO. 3 WIRE or -

k FOR COMBINATION LOADS ONLY I KCMIL 1

- MOTOR ONLY LOADS )’

I I

( 2 1 NO. i 3 j ~0.

- KCMIL - KCMIL 1 ~‘(NCTFOR

IRCUITS TOTAL FEEDER LENGTH : 70 FEET LONG

“REQUIRED” FEEDER WIRE SIZ l ( 1) NO 2 Wire/KCMIL 66360 C.M. “REQUIRED” FEEDER WIRE SIZ l * ( 2 ) NO WiraKCMIL - C.M. “REQUIRED” FEEDER WIRE SIZ l l ( 3 ) NO WireiKCMlL - c. M. “REQUIRED” FEEDER(S) : ONE TWO THREE

VOLTAGE DROP : (ACTUAL) 1.99 0.00 0.00 VOLTS VOLTAGE DROP : (ACTUAL) % 1.0 0.0 0.0 %

CIRCUIT IMPEDENCE : 0.026676 0 0 OHMS SINGLE FEEDER REACTANCE : 0.007960 - - OHMS SINGLE FEEDER RESISTANCE : 0.026 - - OHMS

VOLTAGE DROP : (DESIGN) 6.2 VOLTS VOLTAGE DROP : (DESIGN) % (EX.O3=% 3.0% DROP

a.75 4 /* 3% 1-w v I.0720

- - - -5

4.79 -2.3%

soil and groundwater remediation at rr-72 former …this document presents the basis of design for...

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