rrmj0366 · table of contents 1.0 introduction 1 1.1 project background 1 1.2 general scope of...

LAW ENVIRONMENTAL INC.112 TOWNPARK DRIVEKENNESAVi! GEORGIA 30144-5599404-421-3400

; April 23, 19871

Scovill Inc.• %0gletree, Deakins, Nashr Smoak & Stewart

First Atlanta Tower, Suite 3920Two Peachtree Street, N.W.

! Atlanta, Georgia 30303

ATTENTION: Mr. Charles A. Perry

' SUBJECT: Report of Building Surface Sampling and AnalysesMontross Plant

; Montross, Virginia{ LE Job NO. HC-5283

Gentlemen:

This report presents results of the building surface sampling andanalyses performed for the subject site as a result of the "walk-through" inspection conducted on 17 February 1987.

The sampling and analyses were performed in accordance with Mr.Stewart Hudnut's authorization. Sampling was conducted at thesite from 23 February to 27 February 1987.

Please let us know if there are questions or if you wish todiscuss the report.

We appreciate the opportunity of performing this work forScovill.

Very truly yours,

LAW ENVIRONMENTAL, INC.

Kathleen A. McNelisStaff Chemical Engineer

_L. CTavid Wheeless, P.E.Senior Geotechnical Engineer

KAM/LDW:cfenc.

RRMJ0366

REPORT OF

BUILDING SURFACE SAMPLING AND ANALYSES

for

SCOVILL INC.

MONTROSS PLANT

MONTROSS, VIRGINIA

APRIL 1987

TABLE OF CONTENTS

1.0 INTRODUCTION 1

1.1 Project Background 11.2 General Scope of Phase I Abatement 31.3 Phase II Plan 31.4 "Walk-Through" Inspection 3

2.0 OBJECTIVE OF SAMPLING

3.0 FIELD SAMPLING 6

3.1 Building Surfaces 63.2 Buffing Area 73.3 Sump Discovered on Dip Tank Line 73.4 Debris 83.5 Deteriorated Concrete 8

4.0 LABORATORY ANALYSES 9

4.1 Building Surfaces 94.2 Buffing Area 104.3 Sump Discovered on Dip Tank Line 104.4 Deteriorated Concrete 11

5.0 RESULTS 12

5.1 Building Surfaces 125.2 Buffing Area 175.3 Sump Discovered on Dip Tank Line 175.4 Deteriorated Concrete 18

TABLES

1. Concentrations of Contaminants on Building Surfaces2. Analyses of Soil Samples from Sump Discovered on Dip

Tank Line3. Mean and Standard Deviation of Contaminant Concen-

trations in Building Areas4. 95 Percent Confidence Limit, Contaminant Concen-

trations in Building Areas.5. Lead Contamination on Building Surfaces6. Silver Contamination on Building Surfaces7. Cadmium Contamination on Building Surfaces8. Chromium Contamination on Building Surfaces

TABLE OF CONTENTS (Cont.)

9. Copper Contamination on Building Surfaces10. Nickel Contamination on Building Surfaces11. Zinc Contamination on Building Surfaces12. Cyanide Contamination on Building Surfaces13. Summary of Comparison, Contaminants on Types of

Surfaces, All Building Areas Combined

FIGURES

1. Building Surface Sample Locations. 2. Sample Locations: Dip Tank Line

^369

1.0 INTRODUCTION

1.1 Project Background

Scovill Incorporated is conducting environmental assessment and

abatement activities at the site of a former metal plating

operation located on Route 3, Montross, Virginia. The work is

being performed for Scovill by Law Environmental, Inc. (LEI),

Marietta, Georgia.

The site (property) is roughly square, about 1100 x 1100 feet in

plan. The on-site manufacturing plant building is one story,

about 350 x 400 feet in plan.

Metal plating operations were conducted at the site from 1966 to

1979. Cosmetic assembly and wiring harness manufacturing

operations are presently conducted in portions of the building

not occupied by the abandoned plating facilities. Wastes from

previous metal plating and cosmetic assembly operations were in

containers (such as drums and tanks) and floor sumps in the

building and in drums stored outside the building.

Tnere are six impoundments involved in the environmental work.

These consist of one settling pond and five sludge beds. During

plating operations, the impoundments received discharge from the

plant's waste treatment system. The settling pond is about 275 x

200 feet in plan. Plan dimensions of each sludge bed are about

120 x 80 feet. Design drawings for the facility indicate the

impoundments are ten feet deep, measured from the top of the

earth dikes to impoundment bottom.

A small stream drains northward from the north side of the

impoundments. Near the impoundments, the stream has been

observed to be about 12 inches wide and less than 6 inches deep.

Assessment work on the site began in June 1985 and has progressed

in phases toward abatement of environmental conditions. LEI

prepared a Phase I Abatement Plan dated 12 September 1986 for the

site. The plan divided the anticipated site abatement work into

two phases. The work phases were selected to prioritize the

areas and types of contamination at the facility to accomplish

abatement of the areas and types of contamination in order of

decreasing levels of release or threat of release of hazardous

waste. Phase I involved removal of those wastes that were in and

around the building in process tanks and containers, storage

containers (such as tanks, drums and buckets), equipment and

subfloor sumps. Phase II involves soils at the outside drum

storage areas, surface water and sediment (sludge) in the

settling pond and sludge beds.

The Consent Order (effective date 3 July 1986) for the site uses

the same Phase I and Phase II definitions as the Draft Remedial

Action Plan in describing required abatement work. Paragraph 33

of the Consent Order requires submittal of a plan for accomplish-

ing Phase II.

1.2 General Scope of Phase I Abatement

The initial Phase I abatement was completed by LEI in February

1987. This consisted of "immediate removal" activities to remove

hazardous wastes in and around the building. The "immediate

removal" removed to treatment or disposal at approved

treatment/disposal facilities those wastes located in:

1) Process tanks and containers

2) Drums, buckets and other storage containers

3) Equipment (such as degreasers and stripper)

4) Piles of waste solids on the building floor

5) Contaminated wood flooring

6) Crushed drums, buckets and storage containersemptied in Item 2.

1.3 Phase II Plan

In compliance with paragraph 33 of the Consent Order, LEI

prepared a plan dated 29 August 1986 to address the Phase II

characterization and treatment/disposal alternatives. This plan

described sampling and analyses required to design abatement

measures for the soil, lagoon waters, and lagoon sludges. In

September of 1986 Law Environmental began execution of the work

described in the Phase II Plan.

1.4 "Walk Through* Inspection

On 17 February 1987, personnel from EPA, Scovill and LEI met at

the Montross site at EPA's request to determine what work would

be performed in the building beyond the scope of the Phase I

plan. The following items were agreed to be added:

1) Sampling

a) Sample building surfaces and analyze for appropriate

parameters to determine whether decontamination of

building surfaces is required.

b) Sample soils taken adjacent to sump discovered during

Phase I on the Bright Dip Line and analyze for pH,

cyanide and metals.

c) Sample deteriorated concrete on dip tank line to

determine if removal is required.

d) Sample buffing rooms and analyze for asbestos fibers.

2) Pressure Wash

a) Exterior of kolene caustic stripper

b) Sumps under kolene caustic stripper

c) Concrete floor and sumps in anodizing, plating and waste

treatment areas

d) Exteriors of tanks in plating and waste treatment areas

e) "Septic" sump in anodizing area

3) Remove and Transport to Hazardous Waste Disposal

a) Debris in plating and waste treatment areas

b) Piping in plating and waste treatment troughs and sumps

c) Any remaining wood flooring in the plating, anodizing

and waste treatment areas.

d) Plating tank Nos. 413, 449 and 456 due to broken liners

This report summarizes the result of the required sampling.

2.0 OBJECTIVE OF SAMPLING

The sampling program was planned to:

1) Determine contaminant concentrations on building surfaces so

that EPA and Scovill could decide the extent of building

decontamination and decontamination criteria.

2) Determine extent of contamination around the sump discovered

on the dip tank line to decide further action.

. 3) Collect samples of debris to be removed for submission with

Waste Material Profile Sheets to an approved disposal

facility, as required to obtain waste acceptance agreements

with a facility.

4) Collect samples of deteriorated concrete in troughs along

dip tank line to evaluate the need for removal.

5) Collect lint sample from buffing-rooms to determine whether

lint contains asbestos fibers.

3.0 FIELD SAMPLING

3.1 Building Surfaces

The building was divided into eight areas for purposes of sample

collection and data evaluation. These eight areas are shown on

Figure 1. The table below lists the numbers and types of samples

collected and the number of samples analyzed for specified

contaminants:

_______________Number of Samples__________________Building ____Cyanide____ _____Metals____ Trichloroethylene

Area Collected Analyzed Collected Analyzed Collected Analyzed

Kolene 18 9 18 9

Degreaser &hand buffing 36 9 36 9 36 9

SolventStill I I 1 8 9 1 8 9 6 2

Buffing & dustcollection 18 9 18 9

Paint Room 18 9 18 9

Plating Room 18 9 18 9

Anodizing 18 9 18 9

Waste treat-ment 18 9 18 9

Total 162 72 162 72 42 11

All of the 162 samples for cyanide were collected by wiping a 100

cm^ area with gauze dipped in one percent sodium hydroxide

solution. Samples were stored in 8-oz plastic or glass

containers and delivered to Law Environmental National

Laboratories (LEND for analyses.

The 162 samples for metals were collected by scraping

accumulations of dust from selected surfaces using a dedicated

wooden tongue depressor for each sample. Samples were stored in

8-oz plastic or glass containers and delivered to LENL for

analyses.

The 42 samples for trichloroethylene were collected by scraping

dust accumulations into VOA vials with a dedicated wooden tongue

depressor for each sample. Samples were shipped to LENL.

Approximate locations of samples which were analyzed for cyanide,

metals and trichloroethylene are shown on -Figure 1. Descriptions

of each sample location are listed with the laboratory results in

Table 1.

3.2 Buffing Area

One composite sample was made from lint collected from the four

buffing rooms and the dust collector room. This sample was

stored in an 8-oz plastic bottle and shipped to Micro Analytical

Laboratories for asbestos analyses.

3.3 Sump Discovered on Dip Tank Line

Four samples were taken in a boring made into the soil adjacent

to the sump at the location shown on Figure 2. Samples were

taken at depths to correspond to: 1) the top of the sump (0-6"

sample); 2) middle of sump (15-20" sample); 3) bottom of sump

(33-39" sample); and 4) two feet below the bottom of the sump

(57-63" sample).

Samples were taken by hand auger using procedures described by

ASTM D-1452-80. Samples were collected in 8-oz glass jars and

delivered to LENL for analyses.

3.4 Debris

Samples of the debris to be removed from the plating and waste

treatment areas were collected and shipped with completed Profile

Sheets to Chemical Waste Management in Emelle, Alabama for their

acceptance.

3.5 Deteriorated Concrete

A composite was made from samples collected at locations shown on

Figure 2 of the deteriorated concrete in the dip tank line

troughs. Samples were stored in 8-oz glass bottles and delivered

to LENL for analyses.

4.0 LABORATORY ANALYSES

4.1 Building Surfaces

The following test methods were used for analyses of building

surface samples:

Test Parameter Method Number

Trichloroethylene EPA 8010

Total lead EPA 7420

Total silver EPA 7760

Total cadmium EPA 200.7

Total chromium EPA 200.7

Total copper EPA 200.7

Total nickel EPA 200.7

Total zinc EPA 200.7

Total cyanide EPA 9010

The results of these analyses are listed according to building

area in Table 1. Concentrations of metals shown on Table 1 are

total metals. Results of the metals and trichloroethylene

analyses are shown as concentration of total metal in each dust

sample. Results of the cyanide analyses are shown as weight of

cyanide (micrograms, extracted from the gauze pad which was wiped

over a 100 cm2 area) per cm2.

Laboratory reports from LENL are included as Appendix A.

HM80378

4.2 Buffing Arfea ^

The results of the transmission electron microscopy asbestos

analyses performed on the buffing room composite sample was below

the detection limit of 2254 asbestos structures/mg.

The laboratory report from Micro Analytical Laboratories is

included as Appendix B.


Soil samples collected adjacent to the Dip Tank Line sump were

analyzed for:

Test Parameter Method Number

pH • EPA 150.1

Cyanide, Total EPA 9010

Total lead' EPA 7420

Total silver EPA 7760

Total cadmium EPA 200.7

Total chromium EPA 200.7

Total copper EPA 200.7

Total nickel EPA 200.7

Total zinc EPA 200.7

The results of these analyses are presented as Table 2. The

laboratory reports from LENL are included as Appendix C.

10 AR408379


Test methods and results of analyses performed on the

deteriorated concrete sample composited from two locations on the

dip tank line troughs are listed below:

ConcentrationTest Parameter Method Number in Sample

pH EPA 150.1 1.1 (units)

Total Cyanide EPA 9010 82 mg/kg

Total lead EPA 7420 35 mg/kg

Total silver EPA 7760 26 mg/kg

Total cadmium EPA 200.7 <2 mg/kg

Total chromium EPA 200.7 1000 mg/kg

Total copper EPA 200.7 2300 mg/kg

Total nickel EPA 200.7 610 mg/kg

Total zinc EPA 200.7 230 mg/kg

The laboratory report on the deteriorated concrete sample is

included as Appendix D.

11

5.0 RESULTS

5.1 Building Surface

In evaluating the measured concentrations of each contaminant in

dust in each building area to decide the necessity of

decontamination, it is desirable to consider the mean

concentration, rather than the maximum concentration measured,

since the mean value is more representative of prevailing

conditions. However, where individual measured concentrations

vary widely, the true mean can be determined only by collecting

and analyzing all the dust.

Statistical analyses can be used to characterize the variation of

measured concentrations by expressing the mean, standard

deviation and confidence limit of each set of values. The mean

describes the central tendency of the set of measured

concentrations. The standard deviation measures the extent to

which individual sample concentrations are dispersed around the

mean. The confidence limits describe the confidence interval, or

range of concentrations, within which the true mean lies for a

selected probability. These analyses are based on the assumption

that the individual concentrations exhibit a normal (bell-shaped)

frequency distribution.

In calculating the mean or average value of each measured

contaminant concentration in each building area, a value must be

assigned to those measurements which resulted in BDL (Below

Detection Limit). The actual values of such measurements are

12

known only to the extent that they could range from zero to the

detection limit. Therefore, the average of each set of values is

reported for 2 cases: A) with BDL concentrations being

considered as being equal to zero, and B) with BDL

concentrations being considered as equal to the method detection

limit.

Table 3 presents the mean and standard deviation values for each

contaminant in each building area. Of the metals listed in Table

3, lead, silver, cadmium, and chromium are included in 40 CFR

261.24 as contaminants for determining the characteristic of EP

toxicity. EP toxicity tests were not run on the dust samples.

The dust samples had weights typically of one to two grams, and

EP toxicity test procedures require a minimum sample size of 100

grams.

Upper confidence limits were calculated using the Student's t

test. The building surface sample data in Table 1 was evaluated

for each building area using a one-tailed Student's t value

corresponding to a 95 percent upper confidence limit (UCL).

There is a 95 percent probability that the true mean

concentrations are below the calculated values for the upper

confidence limit. The concentrations calculated for the 95

percent UCL are in all cases higher than the mean values. This

is because in the 95 percent UCL analyses, a value is calculated

from the standard deviation and added to the mean to account for

the variations of individual data. These are reported on Table

4. As previously described for the calculations of mean and

13 AR.fcQ8.3S2

standard deviation, two cases are reported: A) setting BDL » 0,

and B) setting BDL = detection limit. An example of the

calculations used is included as Appendix E.

UCL's of mean lead range from 32 ppm in the buffing and dust

collector areas (Method A) to 3,807 ppm in the kolene area (both

methods) UCL's of silver range from 0 ppm in the buffing and

dust collector area (Method A) to 86 ppm in the plating area

(Method B). Cadmium UCL's ranged from 17 ppm in the buffing and

dust collector area (Method A) to 260 ppm in the solvent still II

area (both methods). Chromium UCL's range from 0 ppm in the

buffing and dust collector area (Method A) to 14,178 ppm in the

plating room (both methods).

UCL's of mean copper concentrations range from 1,916 ppm in the

Kolene area (both methods) to 121,734 ppm in the paint room area

(Method B). UCL's of mean nickel concentrations range from 101

ppm (Method B) in the buffing and dust collector areas to 6,407

ppm (both methods) in the plating room. Zinc concentrations

range from 3,311 ppm (both methods) in the buffing and dust

collector rooms to 246,650 ppm (both methods) in the solvent

still II area. Cyanide concentrations range from 0.004 ug/cm^

(Method A) in the buffing and dust collector rooms to 0.767

ug/cm2 (both methods) in the plating room area.

Trichloroethyiene was sampled only in the degreaser and hand

butfing area and solvent still II area. The results were 38 ppm

and 47 ppm respectively.

14

Average concentrations (calculated with BDL = detection limit)

were further compared as functions of the surface sampled. The

following types of surfaces were evaluated:

1) Light fixtures

2) I beams

3) Air ducts, air conditioners and blowers

4) Overhead pipes and electrical conduits

5) Miscellaneous wooden surfaces: building overhangs,

speaker boxes, wooden storage racks, inside roofs

6) Miscellaneous metal surfaces: buffing machinery, blow-

out doors, fans, cabinets, breaker boxes

Walls were not included in this comparison because of the

relatively small number of walls sampled.

The comparison was done by the following method of computation

for each of the metals and cyanide:

1) Each type of surface was individually considered as the

surface of interest.

2) In each building area, the average concentration of

those samples taken rrom the surface of interest was

calculated.

3) In each building area, the average concentration of

those samples from all surfaces other than the surface

of interest was calculated.

15

4) The difference between the two averages calculated in

Steps 2 and 3 was expressed as a percentage of the sum

of the two average concentrations.

Results of the comparison by building area are shown on a

separate table for each contaminant, Tables 5 through 12. A

negative percent difference indicates the particular surface of

interest has an average concentration smaller than that on the

other types of surfaces. A positive percent difference indicates

the particular surface of interest has an average concentration

larger than that on the other types of surfaces.

With a few possible exceptions, the concentrations of

contaminants in samples do not appear to be functions of the

surfaces sampled. In Table 5, for example, the concentrations of

lead are consistently higher in samples collected from

miscellaneous metal surfaces than on other surfaces sampled.

Similarly, the concentrations of lead are consistently lower on

duct work than on other surfaces sampled. In general, there is

no consistent trend of relative contaminant concentrations on

surfaces of interest in different building areas.

Overall averages were compared for each surface of interest to

examine the trends over the building as one unit, without respect

to building area. Table 13 summarizes the magnitude of the

percent differences between contaminant levels on the surface of

interest and all other surfaces.

16

The values on this table were calculated by the following steps

for each of the metals and cyanide:

1) Each type of surface was individually considered as the

surface of interest.

2) The average concentrations on the surface of interest in

all building areas in which the surface of interest was

sampled were averaged to yield one value for each

contaminant.

3) The average concentrations on surfaces other than the

surface of interest in the same building areas as

considered in Step 2 were averaged to one value for each

contaminant.

4) The difference between the two averages calculated in

Steps 2 and 3 was expressed as a percentage of the sum

of the tv/o average concentrations.

5.2 Buffing Area

Asbestos was not detected in the composite sample of lint from

the buffing and degreaser rooms.


The results of the analyses of soils beside the sump indicates

that cyanide is present in all four of the samples and does not

appear to decrease with increasing depth. In the deepest sample

(57-63") cyanide is present at 46 ppm. The soil pH increases

with depth ranging from 1.8 in the 0-6" sample to 2.3 in the 47-

63" sample. In general, the concentrations of metals decrease

with increasing depth. At 57-63", the only metal present in

detectable concentrations is copper (73 ppm).


The results of the analyses on the deteriorated concrete in the

troughs of the dip tank line (data listed in Section 4.4 of

report) indicates that cyanide is present at 82 ppm at a pH of

1.1.

TABLE 1

CONCENTRATIONS OF CONTAMINANTS ON BUILDING SURFACES Page 1 of 4

A) KOLENE AREA

Sample Location ______Concentration in mg/kg______ CNNumber Description Pb Ag Cd Cr Cu Ni Zn (ug/cm2)

K-l Light fixture 270 42 40 <50 1300 270 3300 0.019K-2 I beam over

caustic stripper 1900 20 280 430 1300 400 9300 0.029K-3 I beam over

caustic stripper 10000 30 320 <50 1500 600 9100 0.049K-5 Top of air duct 2400 40 180 630 830 90 67000 0.30K-6 I beam 740 20 80 220 1900 390 23000 0.20K-7 Top of exhaust

duct from stripper 870 20 390 150 1300 180 94000 0.021K-13 Top of duct 70 <15 40 140 500 90 10000 0.12K-16 Wooden supply racks 80 <15 50 180 640 150 10000 0.020K-18 Light fixutre

& I beam 260 20 50 130 3300 260 9400 0.039

B) DE6REASER AND HAND BUFFING AREA.

Sample Location ______Concentration in mg/kg____________ CNNumber Description Pb _Ag_ Cd Cr . Cu Ni_ Zn TCE (ug/cm2)

D-2 Light fixture 500 20 60 90 17000 780 8900 19 0.020D-6 Light fixture over

degreaser I 850 60 90 150 20000 310 8700 16 0.020D-8 Light fixture over

Degreaser II 1000 70 60 190 19000 270 12000 72 0.015D-9 Top of Solvent

Still I 1100 20 220 250 11000 440 85000 20 0.008D-12 Top of Blower

between degreasers 930 <15 60 170 6100 450 8200 21 0.026HB-1 Floor drain 490 <15 60 170 7100 710 4300 NT 0.036HB-2 Light fixture NT NT NT NT NT NT NT 24 NTHB-5 Top of air duct <50 <15 <10 <50 23000 <50 7600 15 0.018HB-6 Top of air cond. 160 20 <10 200 8100 600 4400 33 0.008HB-9 Top of pipe 100 40 <10 50 32000 190 69000 21 <0.005

NT: Not tested

TABLE 1


C) BUFFING ROOMS AND DUST COLLECTOR AREA

Sample . Location ______Concentration in mg/kg______ CNNumber Description Pb Ag Cd Cr Cu Ni Zn (ug/cm2)

BR-1 Duct <50 <15 <10 <50 7000 60 2200 0.008BR-4 Buffing machine <50 <15 <10 <50 2300 <50 490 <0.005BR-5 Duct <50 <15 <10 <50 6400 90 1700 0.006BR-8 Buffing machine <50 <15 <10 <50 2100 80 490 <0.005BR-10 Duct <50 <15 30 <50 9800 90 4700 <0.005BR-11 Frame of buffing

machine 100 <15 30 <50 5900 140 2900 0.006BR-12 Light fixture <50 <15 <10 <50 10000 60 3000 <0.005BR-16 Wall <50 <15 <10 <50 18000 90 3300 <0.005BR-17 Light fixutre <50 <15 20 <50 18000 100 3300 <0.005

D) SOLVENT STILL II AREA

Sample Location ______Concentration in mg/kg____________ CNNumber Description Pb Ag Cd Cr Cu Ni Zn TCE (ug/cm2)

S-l Light fixtureover SS II 560 70 100 120 50000 320 25000 22 0.023

S-2 Top of duct 210 30 40 50 19000 120 6200 13 0.034S-4 Light over

conveyor rack 240 60 80 80 42000 190 17000 NT 0.017S-9 Top of building

overhang 520 30 80 190 25000 370 24000 NT 0.13S-10 Light over

conveyor rack 180 20 60 70 50000 160 17000 NT 0.066S-13 Supply rack out-

side buffing 2200 90 670 90 4800 70 740000 NT 0.37S-14 Speaker box 200 50 62 70 50000 160 19000 NT 0.006S-16 Light fixture 350 30 40 100 8200 290 8000 NT 0.015S-17 Top of supply racks <50 <15 80 200 4100 730 18000 NT 0.20

AR400390

TABLE 1


E) FAINT ROOM AREA

Sample Location ______Concentration in mg/kg_______ CNNumber Description Pb Ag Cd Cr Cu Ni Zn (ug/cm2)

PR-1 Light .fixture 120 20 140 60 210000 190 37000 0.048PR-2 Light fixture 100 20 130 50 220000 150 41000 0.040PR-3 Light fixture 360 20 70 110 33000 250 10000 0.024PR-5 Light fixture 280 20 90 90 63000 210 13000 0.026PR-6 Wall - discolored

area <50 <15 <10 <50 60 <50 80 <0.005PR-8 Wall - discolored

area <50 <15 <10 <50 <25 <50 90 <0.005PR-10 Light fixture 150 <15 270 60 54000 190 15000 0.008PR-12 Blow-out door 4400 <15 60 330 6100 880 5600 <0.005PR-18 Light & Sprinkler

pipe 50 <15 60 <50 29000 120 8900 <0.005

F) PLATING ROOM AREA

Sample Location ______Concentration in mg/kg_______ CNNumber Description Pb Ag Cd Cr Cu Ni Zn (ug/em2)

PL-4 Top of pipe 320 20 80 360 8200 520 3300 0.81PL-6 Top of pipe 910 30 30 290 9900 240 4600 0.87PL-7 Duct near dip

tank line 400 30 40 550 9300 490 5000 0.15PL-10 I beam crossing

plating line 340 20 60 1100 13000 350 7100 0.30PL-11 I beam crossing

plating line 300 <15 60 1400 28000 230 14000 0.69PL-15 I beam crossing

dip tank line 350 <15 50 1500 7500 720 4400 0.03PL-16 I beam crossing

dip tank line 260 90 60 710 3800 1100 2100 0.0222PL-17 Ducts over pre-

cious metals line 190 90 60 43000 8100 19000 4100 0.95PL-18 Pipe at end of pre-

cious metals line 360 170 50 50 14000 630 5300 0.89

TABLE 1

CONCENTRATIONS OF CONTAMINANTS ON BUILDING SURFACES Page 4 of 4'

G) ANODIZING AREA


A-l Wooden supply rack 540 40 40 280 4900 520 3100 0.089A-2 Wooden supply rack 230 150 50 320 3700 240 2700 0.042A-3 Wooden supply rack 100 90 20 530 2100 120 1700 0.093A-6 Quality Control

lab roof 360 30 30 160 470 160 7700 0.15A-7 Supply room roof 250 <15 20 160 640 180 620 0.36A-10 I beam 860 40 70 340 7500 760 3500 0.80A-ll I beam 630 20 40 190 5100 510 1900 0.33A-l3 I beam 870 30 <10 160 14000 140 5100 0.11A-17 Speaker box 200 20 100 200 9800 430 47000 0.23

H) WASTE TREATMENT


W-l Top of pipe 300 40 20 130 5900 220 2400 <0.005W-3 Top of pipe over

caustic tank 50 40 100 290 5100 670 30000 <0.005W-4 Light over copper

bright dip sump <50 60 40 200 8000 680 970 0.76W-5 I beam over

mixing tank 70 90 <10 220 7400 540 1600 <0.005W-6 Light over acid neu-

tralization tank 630 50 <10 190 2700 760 660 <0.005W-7 Cabinet top 60 20 50 180 5400 730 1100 <0.005W-ll I beam 380 40 <10 220 2000 830 650 <0.005W-13 Light over flash

nuetralization sump 70 15 50 250 3000 810 4200 0.62W-l7 Fan 7900 70 40 260 2200 510 4600 0.36

TABLE 2

ANALYSES OF SOIL SAMPLES FROM SUMP DISCOVERED ON DIP TANK LINE

_________Sample Depth_____Test_ Parameter 0-6" 15-20" 33-39" 47-63"

pH (units) 1.8 1.7 2.0 2.3Total cyanide (mg/kg) 15 10 47 46Total lead (mg/kg) 13 14 13 <5Total silver (mg/kg) 5 35 5 <3Total cadmium (mg/kg) 4 <2.0 <2.0 <2.0Total chromium (mg/kg) 52 30 20 <10.0Total copper (mg/kg) 2300 1500 990 73Total nickel (mg/kg) 36 30 20 <10.0Total zinc (mg/kg) 200 300 150 10

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TABLE 4

95 PERCENT CONFIDENCE LIMITS

CONTAMINANT CONCENTRATIONS IN BUILDING AREAS

A) ASSIGNING BELOW DETECTION LIMITS = 0

_____________95% Upper Confidence Limit______Concentration in mg/kg___________ CN

Building Area Pb Ag Cd Cr Cu Ni Zn TCE (ug/cml)

Kolene 3807 31 245 335 1916 375 45949 — 0.151Degreaser & hand buffing 829 42 103 190 21272 573 42277 38 0.024Buffing & dust collector 32 0 17 0 12477 102 3311 — 0.004Solvent Still II 906 59 260 141 40598 391 246650 47 0.17Paint room 1492 15 143 141 121733 384 23708 — 0.028Plating room 510 85 63 14178 15615 6407 7686 — 0.767Anodizing 628 75 60 336 8119 479 17272 — 0.39Waste treatment 2649 62 54 245 . 6031 758 10985 — 0.38

B) ASSIGNING BELOW DETECTION LIMIT = DETECTION LIMIT

Kolene 3807 31 245 338 1916 375 45949 — 0.151Degreaser & hand buffing 830 44 105 190 21272 573 42277 38 0.023Buffing & dust collector 66 15 21 50 12477 101 3311 — 0.006Solvent Still II 909 60 260 141 40598 391 246650 47 0.17Paint room 1500 19 143 151 121734 389 23708 — 0.028Plating room 510 86 63 14178 15615 6407 7686 — 0.767Anodizing 628 76 60 336 8119 479 17272 — 0.39Waste treatment 2652 62 55 245 6031 758 10985 — 0.39

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TABLE 13

SUMMARY OF COMPARISON

CONTAMINANTS ON TYPES OF SURFACES

ALL BUILDING AREAS COMBINED

____Percent Difference in Concentration____________________Contaminant________________

Surface Pb Ag Cd _Cr_ Cu Ni Zn CN

Light fixtures -67 +10 -21 -26 +53 -11 -61 +25I beams +35 -12 +12 -67 +18 -41 -36 -23Air ducts, con-ditioners & blowers -38 -8 -16 +89 -14 +72 -35 +3

Overhead pipes& electrical conduits -48 +11 -13 -89 +22 -62 +53 +16

Misc. wood surfaces -65 +6 -38 +3 +8 -19 -56 -42Misc. metal surfaces +79 -5 +38 +26 -73 +24 +74 +26

+: Indicates average concentration of contaminant is larger onthe surface of interest than on other surfaces.

-: Indicates average concentrations of contaminant is smaller onthe surface of interest than on other types of surfaces.

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rrmj0366 · table of contents 1.0 introduction 1 1.1 project background 1 1.2 general scope of...

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