### The project leader was Shobna Sahni with ARB Stationary Source Division. The

sampling team was led by David Todd and included Don Ridgley and Ron Barros with the ARB Monitoring and Laboratory Division. Betsy Ronsse, Peter Samra, and Roxana Walker with MLD Northern Laboratory Branch conducted the laboratory analysis. John Martin with Clovis Specialty, Fresno, Dominick Nole with Alta Plating, Sacramento, and Valley Platting, Fresno, provided chrome plating assistance and expertise. Paramo Hernandez of Alta Plating provided analyses for plating bath surface tension and chromic acid content. John Copp with San Joaquin Valley APCD in Fresno provided additional assistance.

This report presents results based on samples collected and analyzed by the Air Resources Board (ARB) staff using ARB test methods. The results have been reviewed by the staff and are believed to be accurate within the limits of the methods. However, data may have been affected by variables that were not known to staff during sampling and review.Page i 

### California Environmental Protection Agency AIR RESOURCES BOARD Monitoring and Laboratory Division

TABLE OF CONTENTS

I. INTRODUCTION

................................ ................................ ................................ ............. 1 II. PROCESS DESCRIPTION

................................ ................................ ............................ 1 III. CLOVIS SPECIALTY TEST

................................ ................................ ............................ 2 IV. TEST METHODS

................................ ................................ ................................ ............. 4 V. QUALITY ASSURANCE

................................ ................................ ................................ .. 6 VI. TEST RESULTS

................................ ................................ ................................ ............... 8

FIGURES

FIGURE III-1: Clovis Specialty Decorative Chrome Tank with ARB Capture Hood

......... 3 FIGURE III-2: Clovis Specialty Decorative Chrome Tank

................................ ..................... 4

TABLES

TABLE VI-1. Clovis 1 Test Results

................................ ................................ ..................... 10 TABLE VI-2. Clovis 2 Test Results

................................ ................................ ...................... 11 TABLE VI-3. Clovis 3 Test Results

................................ ................................ ...................... 12 TABLE VI-4. Clovis 4 Test Results

................................ ................................ ...................... 13

APPENDICES

A. Calculated Results B. ARB Laboratory Results C. Capture Hood Sketch D. Field Data SheetsPage ii (This page is blank.)Page 1 

### California Environmental Protection Agency AIR RESOURCES BOARD Monitoring and Laboratory Division



## Total and Hexavalent Chromium Emissions from

Clovis Specialty Decorative Chromium Plating Tank

I. INTRODUCTION
At the request of the Air Resources Board (ARB) Stationary Source Division (SSD), staff of the Monitoring and Laboratory Division (MLD) performed emissions testing of a decorative chrome electroplating tank operated by Clovis Specialty located at 1366 N. Sierra Vista in Fresno, California. Total and hexavalent chromium emissions testing was conducted from May 24 through May 27, 2004.
Quality assurance measures indicated those results were questionable. Indoor concentrations increased instead of remaining the same or lowering during sample hood operation. (This sample hood also vented emission outside of the facility and normal plating vents emissions inside the facility.) Post test sampling of the hood and duct work indicated significant chromium emissions were retained within the ducts. As a result, the first test, Clovis 1, was invalidated by ARB staff and 3 additional tests were planned and completed.
Emissions testing for the second test, Clovis 2, were performed October 19-21, 2004. Clovis 3 emissions samples were collected on May 24-25, 2005. Clovis 4 emissions samples were collected on June 29-30, 2005. This report includes results from those emissions tests.

II. PROCESSDESCRIPTION Clovis Specialty

performs decorative chromium plating on a variety of small parts. Clovis Specialty’s decorative chrome plating tank has a capacity of 800 gallons and is 108 inches long, 36 inches wide, and 48 inches deep. The plating tank is equipped with its own rectifier and amperage and voltage into the tank varies with the type and area of the parts to be plated. Plating bath temperature is maintained at approximately 100 ° - 110 o 

### F during plating operations. SSD staff periodically collected voltage, amperage, bath temperature, and amp-hour readings for the plating tank during the source test.
Emissions from the plating tank are controlled through the use of a chemical fume suppressant, Chemithon-Micel's Chrome Foam. The chemical fume suppressant is used in the bath to change the surface tension and reduce chromic acid mist that is generated during plating operations. No plating tank ventilation system or additionalPage 2



### emissions controls are used (i.e. HEPA filter). Any emissions from the tank are vented into the building and subsequently through open doors, windows, and roof vents.
For Clovis 2, dummy parts for plating were prepared at Valley Plating, the plating room was cleaned, including sweeping the floor, and plated parts were no longer rinsed under the sampling hood. For Clovis 3, in addition to Clovis 2 changes, the old “contaminated” (high in impurities) plating bath was replaced by a new plating bath. And, for Clovis 4, the plating bath was “slightly contaminated” with appropriate metals so it would seem more like a “normal” plating bath.

III. CLOVIS SPECIALTY SOURCE TEST
Each source test consisted of three individual sample runs. During Clovis 1, May 25-27, 2004, the surface tension of the plating solution was about 55 dynes/cm (measured 53.6 to 56.6) and bath temperature between 95 o

### and 105 o

### F. For Clovis 2, October 19-21, 2004, plating bath surface tension was 42 dynes/cm and bath temperature 105 o

### to 110 o 

### F. For Clovis 3, plating bath surface tension was 36.6, 32.7, and 22.1 dynes/cm. (22.1 dynes/cm is the result of adding fume suppressant between the second and third runs.) For Clovis 4 “contaminates” were added to make the plating bath seem more like a “normal” plating bath than fresh plating bath. For Clovis 4, plating bath surface tension was averaged 31.5 dynes/cm and plating bath temperature was 105 o

### to 110 o 

### F

ARB Method 425 was used to determine hexavalent and total chromium emissions collected during the source tests. Each sample was collected continuously over a two hour period. During sampling, production or “dummy” parts were plated in the tank. The dummy parts were necessary to obtain a target of about 300 or more amp-hours per run. Valley Plating, Fresno, stripped and prepared the dummy parts at their facility for plating in the same manner as production parts. Stripping and preparation was repeated the each time the dummy parts were to reenter the plating tank.
ARB staff built a ventilation system to carry any chromium emitted by the plating tank to the source sampling area. (See Figures III-1 and III-2.) This ventilation system consisted of a capture hood with an open bottom, open or plastic-sheeted sides, and a plastic-sheeted top. A 12-inch diameter exhaust duct near the top back center of the capture hood carried plating tank emissions from the tank and capture hood through a sample collection area and then out a nearby exit door. Surfaces of the hood and duct assembly were made of plastic sheeting and PVC flex hose and tubing. This system was designed to allow droplets to return to the tank but collect fumes that floated above the tank. Per South Coast AQMD’s procedures for plating tanks and fume suppressant certification, the average "lift" velocity between the tank and the ventilation system was designed to be less than 50 feet/minute. Fifty feet per minute under the hood equaled 1,367 cubic feet per minute (cfm) at the sample collection site, a 12-inch diameter tube. Actual flow at the site during sampling was generally less than 1,000 cfm.
The capture hood was suspended above the plating tank from the ceiling. The open bottom of the capture hood was slightly larger than the open top of the plating tank.Page 3



### When suspended and in use, the plastic sheeting along the sides and back hung below the top of the plating tank. The front of the tank was open so plating parts could still be placed in the tank without interference. Smoke tests prior to and during sampling were used to indicate no emissions escaped out of the capture hood.
Flexible and rigid (straight) 12-inch diameter PVC pipe directed tank emissions from the capture hood to the ARB Method 425 sample collection area. Method 425 samples were collected from a vertical (12-inch diameter, 67 inches long) PVC pipe sitting on the inlet to a fan box. Samples were collected from two, 3-inch diameter holes cut 90 degrees apart into the vent stack and located 18 inches (11⁄2 diameters) above the fan box and 49 inches (4 diameters) below the flexible pipe connected to the capture hood. The fan box includes a variable flow controlled fan with a 5-foot, 12-inch diameter PVC rigid pipe to exhaust tank emissions through a door and out of the building.
Smoke tests were also conducted during each run to indicate no emissions “leakage” out of the hood. The smoke did not contain any chromium or other compounds that would interfere with chromium sampling and analysis.

Fig III-1 : Clovis Specialty decorative chromium plating tank and rectifier with ARB capture hood, ducting, and ambient sampler (on rectifier top).

ARB Hood (back) Ambient Sampler

Chrome Plating Tank Rectifier 12" Ducting

Sampling Area

Sample Probe and Supports Sampling ConsolePage 4



### Fig. III-2 : Clovis Specialty decorative chrome plating tank and rectifier without ARB sampling equipment.


### Indoor ambient samples were collected concurrently with each source test run. Indoor ambient samples were collected on sodium bicarbonate-impregnated filters with a BGI, Inc. PQ100 ambient sampler sampling at 10 liters per minute. The sampler was set on top of the rectifier next to the decorative chrome tank (see Figure III-1), so the indoor ambient sampler was especially sensitive to emissions from the plating tank area. For Clovis 2, 3, and 4, a second indoor ambient sampler was setup near the sampling console where it is less sensitive to changes in or around the plating tank. For Clovis 4, a third sampler was “collocated” (within 1 meter) of the second (console) ambient sampler, but sampled at 1 liter per minute. Ten liters per minute is the ARB sampling rate for ambient hexavalent chrome samplers. One liter per minute is the OSHA indoor sampling rate for hexavalent chrome samples. Indoor ambient samples were analyzed for hexavalent chromium only for data quality assurance purposes only. No data or results were “corrected” based indoor ambient results.

IV. TEST METHODS

A. Source Sampling Procedures
Samples were collected and recovered by ARB Stationary Source Testing Branch. Stack and duct flows were determined by ARB Stationary Source Test Method 1 (velocity traverse), Method 2 (stack velocity and flow rate), Method 3 (stack gas dry molecular weight), and Method 4 (moisture content). For Method 3, atmospheric Rectifier

Chrome Plating Tank (front) Stripper TankPage 5



### concentrations of carbon dioxide, nitrogen, and oxygen were used to determine dry molecular weight.
Hexavalent and total chromium samples were collected isokineticaly in accordance with ARB draft Method 425, “Determination of Total Chromium and Hexavalent Chromium Emissions from Stationary Sources.” ARB Method 425 was originally adopted January 22, 1987 and amended August 27, 2002. For chromium sampling at Clovis ARB Method 425 incorporated some approved modifications. These include the use of unheated sample lines and probes, the use of 0.1 N sodium bicarbonate impinger solution in place of 0.1 N sodium hydroxide solution, and deletion of the sample train filter and filter heater.
The chromium sampling train consisted of a 48-inch glass-lined stainless steel probe with a 3/8-inch diameter glass nozzle, and attached Pitot tube and thermocouple for monitoring stack conditions. A ten-foot Teflon  line connected the probe to three Greenburg-Smith impingers used to collect and stabilize any chromium sample. The first two impingers contained 100 milliliters each of 0.1 normal (N) sodium bicarbonate solution. A third, empty impinger was followed by a cylinder of silica gel (final moisture collection), and a 50 foot umbilical line connected to an isokinetic (Method 5) sampling console. The sampling console includes a vacuum pump, a dry gas meter, and additional monitors and controls for collecting a sample isokinetically.
In accordance with Method 1, the sampling location required 24 traverse points (12 sampling points on each diagonal ninety degrees apart).
In accordance with Method 2, thermocouples and Type S pitot tubes bundled with the sampling probes were used to determine stack velocity. The weight of the impinger solutions and silica gel were recorded before and after each test in order to obtain the moisture content of the stack gas in accordance to Method 4. In addition, stack temperature, ambient temperature, and barometric pressure were measured and recorded during each test. Leak checks in accordance with Method 5 were performed on each sample train and Pitot tube setup before and after each sample collection. Leak check results were documented on the Method 425 run sheets.
After sampling, rinses of the sampling train nozzle, probe and transfer line, as well as the catch from the impingers, were recovered into three, 500 ml glass sample jars as follows (all sample jars were pre-cleaned and tested to ensure the absence of chromium prior to the source test):

• Container 1 - rinses from the nozzle, sample probe, and transfer line;

• Container 2 – first impinger catch; and

• Container 3 – second and third impinger catches.
The pH of the sodium bicarbonate solution used for the probe rinse and impingers was maintained at ≥ 8.0. Additionally, the impinger solution was chilled with ice to 4

° C (39 ° F) or less during sample collection. All samples were also chilled with icePage 6



### and refrigeration to 4 ° C (39 ° F) or less during transport and storage prior to analysis to minimize the conversion of hexavalent chromium to trivalent chromium. At the conclusion of each sampling week, staff transported the recovered samples to ARB Northern Laboratory Branch in Sacramento for analyses. Northern Laboratory Branch also analyzes samples from the ARB ambient air network for hexavalent chromium and other pollutants.
Amperage and voltage supplied by the rectifier was monitored and recorded by ARB staff during the source tests runs. ARB staff also recorded tank temperature and totalizer amp-hours. In addition, plating bath samples were collected to determine plating bath surface tension and chromic acid content by Alta Plating and Chemical Corp.

B. Indoor Ambient Sampling
Indoor ambient samples were collected on 47 mm filters using a PQ100 ambient sampler. The filters were specially treated with sodium bicarbonate in order to preserve the sample for hexavalent chromium analysis. Indoor ambient samples were collected in conjunction with each plating tank sample run. Three additional 24- hour indoor ambient samples were collected during normal plating operations when ARB was not collecting Method 425 samples and with the ARB capture hood and ducting removed. After sampling, the filters were placed back into their storage cassettes using sterile gloves and returned to the laboratory for analysis.

C. Analytical Procedures
The plating tank stack emissions were analyzed for both hexavalent and total chromium. The indoor filters were extracted into a solution and analyzed for hexavalent chromium only, using the same analytical procedure as the hexavalent chromium portion of the stack samples.
Laboratory analyses for hexavalent and total chromium of the collected stack samples was performed by ARB’s Northern Laboratory Branch. Hexavalent chromium (also known as hex chrome, Cr (VI), or Cr +6 

### ) was measured using ion chromatography (IC) in accordance with ARB standard operating procedure (SOP) MLD039. The limit of detection (LOD) of the analytical procedure for hexavalent chromium is 0.2 nanograms per milliliter (ng/ml). Total chromium was determined using graphite furnace atomic adsorption (GFAA) in accordance with ARB SOP MLD005. The LOD of the analytical procedure for total chromium is 1.0 ng/ml.

V. QUALITY ASSURANCE / QUALITY CONTROL
To ensure that collected data are consistent, relevant, and defensible, appropriate field and laboratory Quality Assurance (QA) procedures were followed throughout the sourcePage 7



### test. A detailed explanation of the ARB’s standard field and laboratory QA procedures are contained in ARB Quality Assurance manuals, Stationary Source Test Methods, and laboratory SOPs.
As required by ARB Method 425, all surfaces that came into contact with a sample were either glass or Teflon 

### and were pre-cleaned using the following procedure:

• the glassware was first washed with detergent;

• soaked with a 10% solution of nitric acid for several hours;

• flushed with liberal amounts of tap water;

• rinsed with de-ionized water; and

• rinsed with 0.1 N sodium bicarbonate solution.
To ensure that the sampling equipment was clean and free of chromium contamination, a sample of the final sodium bicarbonate rinse was analyzed for total chromium (Cr). If any Cr was detected in the final rinse, all affected sampling equipment were re-cleaneduntil a sample of the final rinse contained no detectable Cr. In addition, extra precleaned equipment was deployed to ensure that no equipment needed to be re-cleaned or re-used during field sampling.
Also, blank source tests were performed on the ARB capture hood and ducting before and after sampling at Clovis Specialty. Clovis 1 pretest results indicated a possible contamination of about 0.14 ng/dscf of hexavalent chromium. Post test results indicate a contamination of 2.4 ng/dscf of total chromium and 2.2 ng/dscf of hexavalent chromium. Those results from the pre and post tests are less than 1 percent of 300 ng/dscf. All Clovis Specialty test runs were 300 ng/dscf to 400 ng/dscf for hexavalent or total chromium. Since the accuracy of the runs are +/- 10% at best, this contamination is usually considered to be within the accuracy (or "noise") of the method. However, those test run results seem high for Clovis Specialty, so source test staff is concerned about those post test results. See the Test Results section of the report for more discussion. No test data has been corrected, nor is any correction suggested or recommended, based upon this pre or post test data.
To insure and demonstrate the capture hood was effective in capturing emissions, smoke tests and an indoor ambient sampler were used. Sometime during each run titanium oxides “smoke” was released inside the capture hood at various locations to demonstrate no leaks. An indoor ambient sampler operated near the plating tank to help document this emission capture and determine the significance of background chromium relative to plating tank emissions. For Clovis 1, ambient results indicated an increase in indoor ambient concentrations, indicating a problem even though smoke tests indicated complete capture. The Type S pitot tubes used for stack velocity determinations met the required specifications for a baseline coefficient of 0.84 as specified in ARB Method 2. The console assembly, including pitot tubes, passed leak checks before and after eachPage 8



### velocity determination. In addition, all sampling train assemblies passed leak checks before and after each sample run.
Prior to deploying to the field, a blank of the sodium bicarbonate solution used for rinses and impinger solutions was collected and given to the laboratory staff for analysis and correction of field sample results. During the test week, staff collected a field blank of the same sodium bicarbonate solution for analysis with the samples. Field blanks are not used to correct laboratory results, but would indicate any contamination beyond the original laboratory samples that might affect the results.
All test samples were collected using an iced impinger set. After recovery, samples were stored in a sample refrigerator or on ice to maintain their temperature at or below 4

° C (39 ° F) as required by ARB Method 425. Collected and recovered samples remained on ice while on site and during transport to the laboratory for analyses. Staff of the Northern Laboratory Branch ensured that the samples were maintained at or below 4 ° C (39 ° F) while waiting to be analyzed.
During sample collection and transport, the pH of the sodium bicarbonate solution used for the probe rinse and impinger charging was maintained at ≥8.0 as required by Method 425. This is necessary to ensure that any collected hexavalent chromium is not reduced to trivalent chromium. The pH of the impinger solutions was checked before sampling, and after sample recovery.
Chain of custody was maintained for all collected samples. A chain of custody sheet was prepared for each sample run and post-test indoor ambient samples.

VI. TEST RESULTS
Results of the ARB Method 425 source test for the Clovis Specialty decorative chromium plating tank is presented in Tables VI-1 (for Clovis 1), VI-2 (for Clovis 2), VI-3 (for Clovis 3) and VI-4 (for Clovis 4). Indoor ambient results, data summaries, and emissions calculations are in Appendix A. Laboratory results are presented in Appendix B. Additional plating tank information is in Appendix C. And, sampling run sheets are in Appendix D.
In Table VI-1, chromium emission rates ranged from 0.21 to 0.25 milligrams per amphour (mg/amp-hr) for total chromium and 0.20 to 0.21 mg/amp-hr for hexavalent chromium. These emissions are relatively high and there is concern they are not representative of the Clovis Specialty decorative chromium plating tank. For additional emissions information from decorative chrome plating tanks see the ARB source test reports for Alta Plating (project number T-03-048) and Sherm's Custom Plating (T-03- 058).
First concern is that some chromium-laden rinse water, used to rinse chromium solution off the plated parts and back into the decorative chromium tank, was drawn into the ARBPage 9



### ducting and sampled. This situation was not observed by the source test crew, nor reported by the platers. But, a post-test emission check of the ARB ventilation system indicated residual chromium from Clovis Specialty in the ARB ventilation system of 2.4 ng/dscf (0.14 mg/hr) of total chromium and 2.2 ng/dscf (0.13 mg/hr) of hexavalent chromium.
This ARB capture hood and ventilation system was also used earlier at Alta Plating (project number T-03-048) and Sherm's Custom Plating (T-03-058). Post test sampling results for Alta were "non-detects" (less than 0.04 ng/dscf and less than 0.00 mg/hr for hexavalent chromium). Post test sampling results for Sherm's were 0.14 ng/dscf and 0.01 mg/hr for hexavalent chromium.
Alta Plating "drag out" their parts to a nearby rinse tank to begin cleaning the plating solution off the plated parts. Sherm's uses a special, fine spray over the plating tank (and under the ARB capture hood) to begin removing plating solution from their plated parts. At Sherm's, the velocity of the spray is low enough the rinse water adheres to and flows down the plated part back into the tank. Overspray that may be collected by ARB capture hood was clean water. Clovis Specialty also started rinsing over their plating tank (and under the ARB capture hood), but they did not appear to use a low velocity spray like Sherm's. Some rinse spray during Clovis 1 may have bounced off the plated parts, picking up chrome solution, and was then drawn into the ARB capture hood and ventilation system. Without the ARB capture hood, this “overspray” would either fall back into the plating solution or, possibly onto the floor around the plating tank.
Another problem with Clovis 1 is the relatively high indoor ambient concentrations with the ARB capture hood in use. Smoke tests indicated no leaks from the ARB capture hood into the plating room. Normally that would be also be documented by the indoor ambient sampler near the plating tank during ARB plating tank emissions sampling. Ambient samples collected with the capture hood in use should be the same or lower than samples collected with the hood removed. (See the Alta Plating and Sherm's Custom Plating source test reports mentioned above.) However, Clovis 1 indoor ambient results are higher with the capture hood in operation than with it removed. Emissions in this report have not been corrected based on the indoor ambient sampler, nor does the source test staff suggest or recommend such a correction be made.
Additional test were scheduled for Clovis Specialty because of the questionable data and results from Clovis 1. For Clovis 2, the ARB capture hood and ducting was rebuilt with fresh ducting and plastic sheeting, the plating room at Clovis Specialty was cleaned up, dummy parts were prepared at Valley Plating away from Clovis Specialty, and plated parts were rinsed in another tank outside of the ARB capture hood. Earlier tests at Alta Plating and Sherm’s did not indicate these would interfere with sampling results. For Clovis 3, another new capture hood and ducting assembly was used and the old plating bath was replaced with a fresh new plating bath. And, for Clovis 4, another new capture hood setup and the plating bath was “contaminated” to a more “normal” level. However, “contaminating” the Clovis 4 bath may not have worked as well as expected.Page 10 Table VI-1 Clovis Specialty Decorative Chromium Plating Tank Test Week 1 (Clovis 1)

Sampling Dates – May 25 - 27, 2004

Sampling Location Sample Number C1 C2 C3 Sampling Date 5/25/04 5/26/04 5/27/04

Plating Tank Data Totalizer (amp-hours) 355 371 340 Production Rate (amp-hrs/hr) 88.75 92.75 85.00 Freeboard (inches to overflow)* 4.5 4.5 4.255 Surface Tension (dynes/cm) 56.6 55.3 53.6 Chromic Acid Conc. (oz/gal) 41.5 41.5 41.5 Bath Temperature (oF) 97.7 99.7 102.4

Stack Data Stack Temperature ( 0F) 80.3 82.0 86.9 Velocity (ft/sec) 21.3 21.0 21.1 Static Pressure ("H 20) -0.24 -0.23 -0.25 Stack Area (sq. ft.) 0.785 0.785 0.785 Flow Rate (DSCFM) 959 946 940 Moisture (% of v/v) 1.1 1.0 1.1

Sampling Data Sampling Time (minutes) 240 240 240 Sample Volume (DSCF) 232.79 232.47 230.30 Chromium Data (ng/sample) Total Chromium 73,820*** 93,250*** 76,230*** Hexavalent Chromium 70,870*** 81,770*** 71140*** Isokinetic Rate (%) 103.6 104.9 104.5

EMISSIONS Concentration (ng/dscf) Total Chromium 320*** 400*** 330*** Hexavalent Chromium 300*** 350*** 310*** Emission Rate (mg/hr) Total Chromium 18*** 23*** 19*** Hexavalent Chromium 18*** 20*** 17*** Emissions Factors (mg/amp-hr)** Total Chromium 0.21*** 0.25*** 0.22*** Hexavalent Chromium 0.20*** 0.22*** 0.21***

DSCF & DSCFMmeans dry standard cubic feet and dry standard cubic feet per minute at 68 F and 29.92 inches Hg.
* Measured at the start of the plating day. ** Emissions Factors (mg/amp-hr) = Emission Rate (mg/hr) /Plating Tank Production Rate (amp-hrs/hr) ***Use these emission results with caution. They may not be representative. See the test report for details.Page 11 Table VI-2 Clovis Specialty Decorative Chromium Plating Tank Test Week 2 (Clovis2)

Sampling Dates – October 19-21, 2004

Sampling Location Sample Number C21 C22 C23 Sampling Date 10/19/04 10/20/04 10/21/04

Plating Tank Data Totalizer (amp-hours) 331 382 360 Production Rate (amp-hrs/hr) 159 191 180 Freeboard (inches to overflow)* 4.375 4.875 4.375 Surface Tension (dynes/cm) 44.1 41.6 42.2 Chromic Acid Conc. (oz/gal) 30.2 30.2 30.2 Bath Temperature (oF) 106 110 112

Stack Data Stack Temperature ( 0F) 68 67 63 Velocity (ft/sec) 20.68 20.40 19.84 Static Pressure ("H 20) -0.22 -0.22 -0.24 Stack Area (sq. ft.) 0.785 0.785 0.785 Flow Rate (DSCFM) 945 931 922 Moisture (% of v/v) 1.3 1.3 1.1

Sampling Data Sampling Time (minutes) 125 120 120 Sample Volume (DSCF) 118.65 111.03 111.23 Chromium Data (ng/sample) Total Chromium 20,990 12,960 18,670 Hexavalent Chromium 21,800 11,280 20,570 Isokinetic Rate (%) 102.9 101.9 103.1

EMISSIONS Concentration (ng/dscf) Total Chromium 177 117 168 Hexavalent Chromium 184 102 185 Emission Rate (mg/hr) Total Chromium 10.0 6.5 9.3 Hexavalent Chromium 10.4 5.7 10.2 Emissions Factors (mg/amp-hr)** Total Chromium 0.063 0.034 0.052 Hexavalent Chromium 0.065 0.030 0.057

DSCF & DSCFMmeans dry standard cubic feet and dry standard cubic feet per minute at 68 F and 29.92 inches Hg.
* Measured at the start of the plating day. ** Emissions Factors (mg/amp-hr) = Emission Rate (mg/hr) /Plating Tank Production Rate (amp-hrs/hr)Page 12 Table VI-3 Clovis Specialty Decorative Chromium Plating Tank Test Week 3 (Clovis 3)

Sampling Dates – May 24-25, 2005

Sampling Location Sample Number C31 C32 C33 Sampling Date 5/24/05 5/25/05 AM 5/25/05 PM

Plating Tank Data Totalizer (amp-hours) 385 309 316 Production Rate (amp-hrs/hr) 192.5 154.5 158 Freeboard (inches to overflow)* 5 5/8 5 5/8 5 5/8 Surface Tension (dynes/cm) 36.6 32.7 22.1 (fume suppressant added before sampling) Chromic Acid Conc. (oz/gal) 25.0 25.0 25.0 Bath Temperature (oF) 108 110 110

Stack Data Stack Temperature ( 0F) 91 86 92 Velocity (ft/sec) 19.8 18.6 18.9 Static Pressure ("H 20) -0.20 -0.21 -0.20 Stack Area (sq. ft.) 0.785 0.785 0.785 Flow Rate (DSCFM) 871 828 836 Moisture (% of v/v) 1.2 1.0 0.7

Sampling Data Sampling Time (minutes) 120 120 120 Sample Volume (DSCF) 103 96.9 97.8 Chromium Data (ng/sample) Total Chromium 19,800 14,284 18,390 Hexavalent Chromium 19,690 13,284 18,100 Isokinetic Rate (%) 101.2 100.0 99.8

EMISSIONS Concentration (ng/dscf) Total Chromium 192 147 188 Hexavalent Chromium 191 137 185 Emission Rate (mg/hr) Total Chromium 10 7.3 9.4 Hexavalent Chromium 10 6.8 9.3 Emissions Factors (mg/amp-hr)** Total Chromium 0.052 0.047 0.059 Hexavalent Chromium 0.052 0.044 0.059

DSCF & DSCFMmeans dry standard cubic feet and dry standard cubic feet per minute at 68 F and 29.92 inches Hg.
* Measured at the start of the plating day. ** Emissions Factors (mg/amp-hr) = Emission Rate (mg/hr) /Plating Tank Production Rate (amp-hrs/hr)Page 13 Table VI-4 Clovis Specialty Decorative Chromium Plating Tank Test Week 4 (Clovis 4)

Sampling Dates – June 29-30, 2005

Sampling Location Sample Number C41 C42 C43 Sampling Date 6/29/05 6/30/05 6/30/05

Plating Tank Data Totalizer (amp-hours) 356 299 345 Production Rate (amp-hrs/hr) 178 149.5 172,5 Freeboard (inches to overflow)* 4.5 4.0 4.0 Surface Tension (dynes/cm) 31.5 31.5 31.5 Chromic Acid Conc. (oz/gal) 28.2 28.2 28.2 Bath Temperature (oF) 105.6 108.6 107.6

Stack Data Stack Temperature ( 0F) 87.5 87.5 95 Velocity (ft/sec) 21.6 19.0 19.8 Static Pressure ("H 20) -0.24 -0.17 -0.20 Stack Area (sq. ft.) 0.785 0.785 0.785 Flow Rate (DSCFM) 955 837 864 Moisture (% of v/v) 1.3 1.6 1.3

Sampling Data Sampling Time (minutes) 120 120 120 Sample Volume (DSCF) 111 100 102 Chromium Data (ng/sample) Total Chromium 40,860 14,900 29,290 Hexavalent Chromium 29,910 9,890 25,020 Isokinetic Rate (%) 99.3 102 101

EMISSIONS Concentration (ng/dscf) Total Chromium 368 149 287 Hexavalent Chromium 269 99 245 Emission Rate (mg/hr) Total Chromium 21 7.5 15 Hexavalent Chromium 15 5.0 13 Emissions Factors (mg/amp-hr)** Total Chromium 0.12 0.050 0.086 Hexavalent Chromium 0.087 0.033 0.074

DSCF & DSCFMmeans dry standard cubic feet and dry standard cubic feet per minute at 68 F and 29.92 inches Hg.
* Measured at the start of the plating day. ** Emissions Factors (mg/amp-hr) = Emission Rate (mg/hr) /Plating Tank Production Rate (amp-hrs/hr)Page 14 

### (This page intentionally blank)

## Appendix A1

Clovis 1 Calculated Results

### (This page intentionally blank)Page A1- 1 Sample Number: C1-A C2-A C3-A Sample Date: 5/25/2004 5/26/2004 5/27/2004

Sampling Time (minutes) 262 1,413 1,394 Volume Collected (liters) 2,620 14,130 13,940
Plating Tank Amp-hours 355 372 340
Cr (VI) collected (nanograms) 6400 7500 5500
Indoor Ambient Concentration (ng/m 3) 

### 2400* 530 400 Table A1-1a Clovis Specialty Indoor Ambient Hexavalent Chromium
(with Capture Hood over Plating Tank)

* Run C1-A (2400 ng/m 3) may not be comparable to the other runs due to its short sampling time.

Sample Number: C4-A C5-A C6-A C7-A Sample Date: 6/1/2004 6/2/2004 6/3/2004 6/4/2004

Sampling Time (minutes) 1,403 1,317 1,115 470 Volume Collected (liters) 14,030 13,068 11,150 4,653
Plating Tank Amp-hours 1 72 22 51
Cr (VI) collected (nanograms) 1700 3600 1500 2100
Indoor Ambient Concentration (ng/m 3) 

### 120 280 130 460 (without Capture Hood) Table A1-1b Clovis Specialty Indoor Ambient Hexavalent ChromiumPage A1-2 ml of sample Total Cr Total Cr Cr(VI) Cr(VI) Cr (VI) as Sample ID collected ng/ml ng recovered ng/ml ng recovered % of Total Cr CB 115 <1.0 <120 <0.2 <23

C1-I2 111 3.8 420 4.2 470 111.9% C1-I1 123 44 5400 44 5400 100.0% C1-P 47 1400 68000 1400 65000 95.6% 

### Totals: 73,820 70,870 96.0% C2-I1 113.8 42 4800 40 4600 95.8% C2-I2 110.8 4.1 450 1.5 170 37.8% C2-P 73.4 1200 88000 1000 77000 87.5% 

### Totals: 93,250 81,770 87.7% C3-I1 117.3 40 4700 40 4700 100.0% C3-I2 116.7 4.5 530 3.8 440 83.0% C3-P 101.3 700 71000 650 66000 93.0% 

### Totals: 76,230 71,140 93.3% CP-I1 107.4 1.6 170 1.4 150 88.2% CP-I2 110.5 <1.0 <110 0.3 33 CP-P 76.2 5.1 390 4.5 340 87.2%



### Totals: <670 but 

### >/= 593* 523 88.2% SP-I1 88.8 <1.0 <89 0.2 18 SP-I2 101.4 <1.0 <100 <0.2 <20 SP-P 50.5 <1.0 <51 0.6 30 

### Totals: <240 <68 but 

### >/= 48
The limit of detection (LOD) fro Cr by GFAA is 1.0 ng/ml. The LOD for Cr 6+ by IC is 0.2 ng/ml. * Run CP: Total Cr = 170+33(<110)+390 = 593. Sample CP-I2 Total Cr is <110 but, according to Cr(VI) analysis, >/= to 33 .

Air Volume Cr(VI) Cr(VI) Cr(VI) Plating Tank Filter ID liters ng/ml ng recovered ng/m3** Total amp-hrs C1A 2620 420 6400 2400 355 C2A 14130 500 7500 530 372 C3A 13940 370 5500 400 340 C4A 14030 110 1700 120 1 C5A 13068 240 3600 280 72 C6A 11150 100 1500 130 22 C7A 4653 140 2100 460 51
extraction volume = 15 ml. ** NIOSH recommended worker indoor limit is 0.001 mg/m3 (1,000 ng/m3). 

### Table A1-2a 

## Chromium Source Testing Results

Clovis Plating

Table A1-2b - Indoor Ambient Samples

Table A-3a - Tank Sample RunsPage A1-3

-

FILE NO.: T-04-014 PROJECT NAME: Clovis Specialty RUN NO.: C1

SUMMARY OF TEST DATA

--------------------- Volume of Gas Sampled (Vm): 228.84 cubic feet Vm Meter Cal. Factor (Y) 1.006 Meter Temperature (Tm): 520 deg. R Barometric Pressure (Pb): 29.58 inches Hg Avg. delta H Orifice Press. (dH avg): 2.950 inches H2O Pb + dH avg: 29.80 inches Hg. O2 in Stack (%O2): 20.90 percent CO in Stack (%CO): 0.0000 percent CO2 in Stack (%CO2): 0.00 percent N2 in Stack (%N2): 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.37 /(inches H2O) Stack Temperature (Ts) 540 deg. R Static Pressure -0.24 inches H2O Absolute Stack Pressure (Ps) 29.56 inches Hg Stack Dimensions 12 inches dia. Stack Area (As) 0.785 square feet H2O in Impingers and Silica Gel (Vlc): 56.4 milliliters Sampling Time (t): 240 minutes Nozzle Diameter (Dn): 0.375 inches Total Chromium Mass Collected (Mn): 73,820 nanograms Hexavalent Cr. Mass Collected (Mn): 70,870 nanograms

CALCULATED RESULTS

------------------- Corrected Sample Volume (Vm std): 232.79 DSCF (68 deg.F) Water Vapor in Stack (Bws): 1.1 percent by volume Stack Gas Molecular Wt, Dry (Md): 28.84 lb/lbmole Stack Gas Molecular Wt, Wet 28.71 lb/lbmole Stack Gas Velocity (Vs): 21.33 feet/second Stack Gas Flow Rate (Qs): 959 DSCFM(68 deg.F) Isokinetic Ratio (%I): 103.6 percent Total Cr Mass Conc. (Cs): 317.10557 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 304.43338 nanograms/dscf Total Cr Mass Conc: 11,198 nanograms/dscm Hex. Cr. Mass Conc: 10,751 nanograms/dscm Total Cr. Emission Rate (Wm): 18.25 milligrams/hr Total Cr. Hex. Cr. Emission Rate (Wm): 17.52 milligrams/hr Hex. Cr. MONITORING & LABORATORY DIVISION STATIONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS (FOR FIELD DATA RECORD)Page A1-4

FILE NO.: T-04-014 PROJECT NAME: Clovis Specialty RUN NO.: C2

SUMMARY OF TEST DATA

--------------------- Volume of Gas Sampled (Vm): 228.27 cubic feet Vm Meter Cal. Factor (Y) 1.006 Meter Temperature (Tm): 520 deg. R Barometric Pressure (Pb): 29.62 inches Hg Avg. delta H Orifice Press. (dH avg): 2.863 inches H2O Pb + dH avg: 29.83 inches Hg. O2 in Stack (%O2): 20.90 percent CO in Stack (%CO): 0.0000 percent CO2 in Stack (%CO2): 0.00 percent N2 in Stack (%N2): 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.37 /(inches H2O) Stack Temperature (Ts) 542 deg. R Static Pressure -0.23 inches H2O Absolute Stack Pressure (Ps) 29.60 inches Hg Stack Dimensions 12 inches dia. Stack Area (As) 0.785 square feet H2O in Impingers and Silica Gel (Vlc): 47.6 milliliters Sampling Time (t): 240 minutes Nozzle Diameter (Dn): 0.375 inches Total Chromium Mass Collected (Mn): 93,250 nanograms Hexavalent Cr. Mass Collected (Mn): 81,770 nanograms

CALCULATED RESULTS

------------------- Corrected Sample Volume (Vm std): 232.47 DSCF (68 deg.F) Water Vapor in Stack (Bws): 0.95 percent by volume Stack Gas Molecular Wt, Dry (Md): 28.84 lb/lbmole Stack Gas Molecular Wt, Wet 28.73 lb/lbmole Stack Gas Velocity (Vs): 21.02 feet/second Stack Gas Flow Rate (Qs): 945.99 DSCFM(68 deg.F) Isokinetic Ratio (%I): 104.91 percent Total Cr Mass Conc. (Cs): 401.12 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 351.74 nanograms/dscf Total Cr Mass Conc: 14,165.29 nanograms/dscm Hex. Cr. Mass Conc: 12,421.41 nanograms/dscm Total Cr. Emission Rate (Wm): 22.77 milligrams/hr Total Cr. Hex. Cr. Emission Rate (Wm): 19.96 milligrams/hr Hex. Cr. MONITORING & LABORATORY DIVISION STATIONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS (FOR FIELD DATA RECORD)Page A1-5

FILE NO.: T-04-014 PROJECT NAME: Clovis Specialty RUN NO.: C3

SUMMARY OF TEST DATA

--------------------- Volume of Gas Sampled (Vm): 226.13 cubic feet Vm Meter Cal. Factor (Y) 1.006 Meter Temperature (Tm): 520 deg. R Barometric Pressure (Pb): 29.62 inches Hg Avg. delta H Orifice Press. (dH avg): 2.867 inches H2O Pb + dH avg: 29.83 inches Hg. O2 in Stack (%O2): 20.90 percent CO in Stack (%CO): 0.0000 percent CO2 in Stack (%CO2): 0.00 percent N2 in Stack (%N2): 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.37 /(inches H2O) Stack Temperature (Ts) 547 deg. R Static Pressure -0.25 inches H2O Absolute Stack Pressure (Ps) 29.60 inches Hg Stack Dimensions 12 inches dia. Stack Area (As) 0.785 square feet H2O in Impingers and Silica Gel (Vlc): 54.9 milliliters Sampling Time (t): 240 minutes Nozzle Diameter (Dn): 0.375 inches Total Chromium Mass Collected (Mn): 76,230 nanograms Hexavalent Cr. Mass Collected (Mn): 71,140 nanograms

CALCULATED RESULTS

------------------- Corrected Sample Volume (Vm std): 230.30 DSCF (68 deg.F) Water Vapor in Stack (Bws): 1.11 percent by volume Stack Gas Molecular Wt, Dry (Md): 28.84 lb/lbmole Stack Gas Molecular Wt, Wet 28.72 lb/lbmole Stack Gas Velocity (Vs): 21.13 feet/second Stack Gas Flow Rate (Qs): 940.48 DSCFM(68 deg.F) Isokinetic Ratio (%I): 104.54 percent Total Cr Mass Conc. (Cs): 331.01 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 308.90 nanograms/dscf Total Cr Mass Conc: 11,689 nanograms/dscm Hex. Cr. Mass Conc: 10,909 nanograms/dscm Total Cr. Emission Rate (Wm): 18.68 milligrams/hr Total Cr. Hex. Cr. Emission Rate (Wm): 17.43 milligrams/hr Hex. Cr. MONITORING & LABORATORY DIVISION STATIONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS (FOR FIELD DATA RECORD)Page A1-6

F ILE NO.: T-03-058 PROJECT NAME: 14th & S WH RUN NO . : SP

SUMMARY OF TEST DATA

--------------------- Volume of Gas Sampled (Vm): 342.696 cubic feet Vm Meter Cal. Factor 1.002 Meter Temperature (Tm): 520 deg. R Barometric Pressure (Pb): 30.03 inches Hg Avg. delta H Orifice Press. (dH avg): 2.900 inches H2O Pb + dH avg: 30.24 inches Hg. O2 in Stack (%O2): 20.90 percent CO in Stack (%CO): 0.0000 percent CO2 in Stack (%CO2): 0.00 percent N2 in Stack (%N2): 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.38 /(inches H2O) Stack Temperature (Ts) 530 deg. R Static Pressure -0.24 inches H2O Absolute Stack Pressure (Ps) 30.01 inches Hg Stack Dimensions 12 inches dia. Stack Area (As) 0.785 square feet H2O in Impingers and Silica Gel (Vlc): 29.4 milliliters Sampling Time (t): 360 minutes Nozzle Diameter (Dn): 0.375 inches Total Chromium Mass Collected (Mn): < 240 but >/= 48 nanograms* Hexavalent Cr. Mass Collected (Mn): < 68 but >/= 48 nanograms

CALCULATED RESULTS

------------------- Corrected Sample Volume (Vm std): 352.43 DSCF (68 deg.F) Water Vapor in Stack (Bws): 0.4 percent by volume Stack Gas Molecular Wt, Dry (Md): 28.84 lb/lbmole Stack Gas Molecular Wt, Wet 28.79 lb/lbmole Stack Gas Velocity (Vs): 21.56 feet/second Stack Gas Flow Rate (Qs): 1012 DSCFM(68 deg.F) Isokinetic Ratio (%I): 99.2 percent Total Cr Mass Conc. (Cs): < 0.6810 but >/= 0.13620 Hex. Cr. Mass Conc. (Cs): < 0.1929 but >/= 0.13620 nanograms/dscf Total Cr Mass Conc: < 24.0486 but >/= 4.80972 Hex. Cr. Mass Conc: < 6.8138 but >/= 4.80972 nanograms/dscm Total Cr. Emission Rate (Wm): < 0.0413 but >/= 0.00827 milligrams/hr Total Cr.* Hex. Cr. Emission Rate (Wm): < 0.0117 but >/= 0.00827 milligrams/hr Hex. Cr.

* Total Cr < 100ng; therefore, used Hex. Cr for Total Cr nanograms/dscf*

nanograms/dscm* MON I TORI NG & LABORATORY DI VI SI ON STATI ONARY SOURCE TESTI NG BRANCH

TEST SUMMARY AND RESULTSPage A1-7 MONITORING & LABORATORY DIVISION STATIONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS

FILE NO.: T-04-014 PROJECT NAME: Clovis Specialty RUN NO.: CP

SUMMARY OF TEST DATA

--------------------- Volume of Gas Sampled (Vm): 237.1 cubic feet Vm Meter Cal. Factor (Y) 1.001 Meter Temperature (Tm): 520 deg. R Barometric Pressure (Pb): 29.90 inches Hg Avg. delta H Orifice Press. (dH avg): 3.150 inches H2O Pb + dH avg: 30.13 inches Hg. O2 in Stack (%O2): 20.90 percent CO in Stack (%CO): 0.0000 percent CO2 in Stack (%CO2): 0.00 percent N2 in Stack (%N2): 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.37 /(inches H2O) Stack Temperature (Ts) 533 deg. R Static Pressure -0.25 inches H2O Absolute Stack Pressure (Ps) 29.88 inches Hg Stack Dimensions 12 inches dia. Stack Area (As) 0.785 square feet H2O in Impingers and Silica Gel (Vlc): 46.9 milliliters Sampling Time (t): 240 minutes Nozzle Diameter (Dn): 0.375 inches Total Chromium Mass Collected (Mn): < 670 but >/= 593 nanograms Hexavalent Cr. Mass Collected (Mn): 523 nanograms

CALCULATED RESULTS

------------------- Corrected Sample Volume (Vm std): 242.69 DSCF (68 deg.F) Water Vapor in Stack (Bws): 0.9 percent by volume Stack Gas Molecular Wt, Dry (Md): 28.84 lb/lbmole Stack Gas Molecular Wt, Wet 28.74 lb/lbmole Stack Gas Velocity (Vs): 21.19 feet/second Stack Gas Flow Rate (Qs): 979 DSCFM(68 deg.F) Isokinetic Ratio (%I): 105.8 percent Total Cr Mass Conc. (Cs): < 2.7607 but >/= 2.4434 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 2.1550 nanograms/dscf Total Cr Mass Conc: < 97.492 but >/= 86.2880 nanograms/dscm Hex. Cr. Mass Conc: 76.1022 nanograms/dscm Total Cr. Emission Rate (Wm): < 0.1622 but >/= 0.14356 milligrams/hr Total Cr. Hex. Cr. Emission Rate (Wm): 0.12661 milligrams/hr Hex. Cr.Page A1-8 

### (This page intentionally blank)

## Appendix A2

Clovis 2 Calculated Results

### (This page intentionally blank)Page A2- 1 Table A2-1a Clovis Specialty Plating – Test Week 2 Indoor (PQ-100) Ambient Hexavalent Chromium Sampling Results
(Ambient sampling on rectifier during source testing with capture hood in place.)

Sample Number: C20-RA C21-RA C22-RA C23-RA Sample Date: 10/18/04 10/19/04 10/20/04 10/21/04

Sampling Time (minutes) 196 308 143 132 Volume Sampled (liters) 1960 3080 1430 1320

Cr (VI) Collected (ng/sample) 300 5000 470 1800

Indoor Ambient Concentration (ng/m 3 ) 150 1600 330 1300 This rectifier is next to the plating tank, but outside the source test capture hood.

Table A2-1b Clovis Specialty Plating – Test Week 2 Indoor (PQ-100) Ambient Hexavalent Chromium Sampling Results
(2ndparallel ambient sampling during source testing with capture hood in place.)

Sample Number: C20-CA C21-CA C22-CA C23-CA Sample Date: 10/18/04 10/19/04 10/20/04 10/21/04

Sampling Time (minutes) 188 308 139 ** Volume Sampled (liters) 1880 3050 1380 **

Cr (VI) Collected (ng/sample) 270 1700 700 810

Indoor Ambient Concentration (ng/m 3 ) 150 560 510 ** CA samples parallel RA samples above - away from the tank and rectifier, but in the same room. RA samples were collected at the same location as Week 1 indoor samples. ** Air Volume data not recorded. Indoor concentration can not be calculated.Page A2-2 Chromium Source Testing Results Project: Clovis Plating Sample Collection: OCTOBER 2004 (Clovis 2) Probes and Impingers

ml of sample Total Cr Total Cr Cr(VI) Cr(VI) Cr (VI) as Sample ID collected ng/ml ng recovered ng/ml ng recovered % of Total Cr C24-B 60.4 <1.0 <60 <0.2 <12

C21-I1 108.4 6.1 660 5.0 540 81.8% C21-I2 106.9 3.1 330 2.4 260 78.8% C21-P 68.8 290 20,000 300 21,000 105.0% 

### Totals: 20,990 21,800 103.9% C22-I1 106.8 7.5 800 1.6 170 21.3% C22-I2 105.1 1.5 160 1.0 110 68.8% C22-P 64.9 180 12,000 170 11,000 91.7% 

### Totals: 12,960 11,280 87.0% C23-I1 105.2 4.4 460 3.9 410 89.1% C23-I1 104.6 2.0 210 1.5 160 76.2% C23-P 78.4 230 18,000 260 20000 111.1% 

### Totals: 18,670 20,570 110.2% C2WBASE-I1 112.9 <1.0 <0.2 C2WBASE-I2 106.4 <1.0 <0.2 C2WBASE-P 142.2 1.1 160 1.1 160 100.0% 

### Totals: 160 160 100.0% C2WPOST-I1 98.5 <1.0 0.4 39 C2WPOST-I2 100.0 <1.0 <0.2 C2WPOST-P 123.7 1.0 120 0.8 100 83.3% 

### Totals: 120 139 115.8% The limit of detection (LOD) for Cr by GFAA is 1.0 ng/ml. The LOD for Cr 6+ by IC is 0.2 ng/ml.



### Indoor Ambient Filters

Air Volume Cr(VI) Cr(VI) Cr(VI) Plating Tank Filter ID liters ng/ml ng recovered ng/m3 Total amp-hrs C20-CA* 1880 18 270 150 0 C20-RA* 1960 20 300 150 " C21-CA 3050 110 1700 560 331 C21-RA 3080 340 5000 1600 " C22-CA 1380 47 700 510 382 C22-RA 1430 31 470 330 " C23-CA** ** 54 810 ** 360 C23-RA 1320 120 1800 1300 " C24-BA blank <0.2 <3.0 blank blank
extraction volume = ~15 ml. * Samples collected during test equipment setup. No plating occurred during sampling. ** Air volume was not recorded. Final concentration data cannot be calculatedPage A2-3

FILE NO.: T-04-014 PROJECT NAME: Clovis 2 RUN NO.: C21

SUMMARY OF TEST DATA

--------------------- Volume of Gas Sampled (Vm): 117.9 cubic feet Vm Meter Cal. Factor (Y) 1.001 Meter Temperature (Tm): 520 deg. R Barometric Pressure (Pb): 29.42 inches Hg Avg. delta H Orifice Press. (dH avg): 2.776 inches H2O Pb + dH avg: 29.62 inches Hg. O2 in Stack (%O2): 20.90 percent CO in Stack (%CO): 0.0000 percent CO2 in Stack (%CO2): 0.00 percent N2 in Stack (%N2): 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.36 /(inches H2O) Stack Temperature (Ts) 528 deg. R Static Pressure -0.22 inches H2O Absolute Stack Pressure (Ps) 29.40 inches Hg Stack Dimensions 12 inches dia. Stack Area (As) 0.785 square feet H2O in Impingers and Silica Gel (Vlc): 33.7 milliliters Sampling Time (t): 125 minutes Nozzle Diameter (Dn): 0.375 inches Total Chromium Mass Collected (Mn): 20,990 nanograms Hexavalent Cr. Mass Collected (Mn): 21,800 nanograms

CALCULATED RESULTS

------------------- Corrected Sample Volume (Vm std): 118.65 DSCF (68 deg.F) Water Vapor in Stack (Bws): 1.3 percent by volume Stack Gas Molecular Wt, Dry (Md): 28.84 lb/lbmole Stack Gas Molecular Wt, Wet 28.69 lb/lbmole Stack Gas Velocity (Vs): 20.68 feet/second Stack Gas Flow Rate (Qs): 945 DSCFM(68 deg.F) Isokinetic Ratio (%I): 102.9 percent Total Cr Mass Conc. (Cs): 176.909088 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 183.735975 nanograms/dscf Total Cr Mass Conc: 6,247 nanograms/dscm Hex. Cr. Mass Conc: 6,489 nanograms/dscm Total Cr. Emission Rate (Wm): 10.03 milligrams/hr Total Cr. Hex. Cr. Emission Rate (Wm): 10.41 milligrams/hr Hex. Cr. MONITORING & LABORATORY DIVISION STATIONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS (FOR FIELD DATA RECORD)Page A2-4

FILE NO.: T-04-014 PROJECT NAME: Clovis 2 RUN NO.: C22

SUMMARY OF TEST DATA

--------------------- Volume of Gas Sampled (Vm): 110.72 cubic feet Vm Meter Cal. Factor (Y) 1.001 Meter Temperature (Tm): 520 deg. R Barometric Pressure (Pb): 29.32 inches Hg Avg. delta H Orifice Press. (dH avg): 2.704 inches H2O Pb + dH avg: 29.52 inches Hg. O2 in Stack (%O2): 20.90 percent CO in Stack (%CO): 0.0000 percent CO2 in Stack (%CO2): 0.00 percent N2 in Stack (%N2): 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.36 /(inches H2O) Stack Temperature (Ts) 527 deg. R Static Pressure -0.22 inches H2O Absolute Stack Pressure (Ps) 29.30 inches Hg Stack Dimensions 12 inches dia. Stack Area (As) 0.785 square feet H2O in Impingers and Silica Gel (Vlc): 31.6 milliliters Sampling Time (t): 120 minutes Nozzle Diameter (Dn): 0.375 inches Total Chromium Mass Collected (Mn): 12,960 nanograms Hexavalent Cr. Mass Collected (Mn): 11,280 nanograms

CALCULATED RESULTS

------------------- Corrected Sample Volume (Vm std): 111.03 DSCF (68 deg.F) Water Vapor in Stack (Bws): 1.3 percent by volume Stack Gas Molecular Wt, Dry (Md): 28.84 lb/lbmole Stack Gas Molecular Wt, Wet 28.69 lb/lbmole Stack Gas Velocity (Vs): 20.40 feet/second Stack Gas Flow Rate (Qs): 931 DSCFM(68 deg.F) Isokinetic Ratio (%I): 101.9 percent Total Cr Mass Conc. (Cs): 116.728427 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 101.596964 nanograms/dscf Total Cr Mass Conc: 4,122 nanograms/dscm Hex. Cr. Mass Conc: 3,588 nanograms/dscm Total Cr. Emission Rate (Wm): 6.52 milligrams/hr Total Cr. Hex. Cr. Emission Rate (Wm): 5.67 milligrams/hr Hex. Cr. MONITORING & LABORATORY DIVISION STATIONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS (FOR FIELD DATA RECORD)Page A2-5

FILE NO.: T-04-014 PROJECT NAME: Clovis 2 RUN NO.: C23

SUMMARY OF TEST DATA

--------------------- Volume of Gas Sampled (Vm): 110.18 cubic feet Vm Meter Cal. Factor (Y) 1.001 Meter Temperature (Tm): 520 deg. R Barometric Pressure (Pb): 29.54 inches Hg Avg. delta H Orifice Press. (dH avg): 2.604 inches H2O Pb + dH avg: 29.73 inches Hg. O2 in Stack (%O2): 20.90 percent CO in Stack (%CO): 0.0000 percent CO2 in Stack (%CO2): 0.00 percent N2 in Stack (%N2): 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.35 /(inches H2O) Stack Temperature (Ts) 523 deg. R Static Pressure -0.24 inches H2O Absolute Stack Pressure (Ps) 29.52 inches Hg Stack Dimensions 12 inches dia. Stack Area (As) 0.785 square feet H2O in Impingers and Silica Gel (Vlc): 25.7 milliliters Sampling Time (t): 120 minutes Nozzle Diameter (Dn): 0.375 inches Total Chromium Mass Collected (Mn): 18,670 nanograms Hexavalent Cr. Mass Collected (Mn): 20,570 nanograms

CALCULATED RESULTS

------------------- Corrected Sample Volume (Vm std): 111.28 DSCF (68 deg.F) Water Vapor in Stack (Bws): 1.1 percent by volume Stack Gas Molecular Wt, Dry (Md): 28.84 lb/lbmole Stack Gas Molecular Wt, Wet 28.72 lb/lbmole Stack Gas Velocity (Vs): 19.84 feet/second Stack Gas Flow Rate (Qs): 922 DSCFM(68 deg.F) Isokinetic Ratio (%I): 103.1 percent Total Cr Mass Conc. (Cs): 167.772939 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 184.846779 nanograms/dscf Total Cr Mass Conc: 5,925 nanograms/dscm Hex. Cr. Mass Conc: 6,528 nanograms/dscm Total Cr. Emission Rate (Wm): 9.28 milligrams/hr Total Cr. Hex. Cr. Emission Rate (Wm): 10.22 milligrams/hr Hex. Cr. MONITORING & LABORATORY DIVISION STATIONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS (FOR FIELD DATA RECORD)Page A2-6

-

FI LE NO. : T-04-014 PROJECT NAME: Clovis 2 RUN NO. : C2W B2 (Pre)

SUMMARY OF TEST DATA

--------------------- Vo l u me of Gas Samp l ed (Vm): 207.05 cubic feet Vm Me ter Cal. Factor (Y) 1.001 M eter Te mperat ure (T m ) : 520 deg. R Barometric Pressure (Pb): 29

. 91 inches Hg Avg. de l t a H Orifice Press. (d H avg): 2.329 inches H2O Pb + dH avg: 30.08 inches Hg. O2 in Stack ( %O2

) : 20.90 percent CO in Stack ( %CO

) : 0

. 0000 percent CO2 i n Stack ( %CO2

) : 0.00 percent N2 in Stack ( %N2): 79.10 percent Pi t ot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.34 /(inches H2O) S t ack Temperat ure (Ts) 531 deg. R S t atic Pressure -0.22 inches H2O Abso l ute Stack Pressure (Ps) 29.89 inches Hg S t ack D i mensions 12 inches dia. S t ack Area (As) 0.785 square feet H2O i n I mp

i ngers and Silica Gel ( Vlc): 44.1 m illilit ers Sampl i ng T i me (t): 240 m i nu t es Nozz l e D i a me

ter ( Dn): 0.375 inches Tota l Chrom i u m Mass Collected ( M n): 160 nanograms Hexavalent Cr. Mass Collected ( M n): 160 nanograms

CALCULATED RESULTS

------------------- Corrected Sa m

ple Volume (Vm std): 211.58 DSCF (68 deg

. F) W ater Vapor in Stack (Bws): 1 . 0 percent by volume S t ack Gas Mo lecular W t, Dry (Md): 28.84 lb/lb mo l e S t ack Gas Mo lecular W t, Wet 28.73 lb/lb mo l e S t ack Gas Veloc ity ( Vs): 19.20 feet/second S t ack Gas Flow Rate (Qs): 890 DSCFM(68 deg.F) Isokinetic Ratio ( % I): 101.5 percent Tota l C r M ass Conc . ( Cs): 0

. 7562156 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 0

. 7562156 nanograms/dscf Tota l C r M ass Conc: 26.705 nanograms/dsc m Hex. Cr. Mass Conc: 26.705 nanograms/dsc m Tota l C r. E m ission Rate ( Wm

) : 0.04 m illi gra m

s/hr Total Cr. Hex. Cr. Emission Rate ( Wm ) : 0.04 m illi gra m

s/hr Hex. Cr. MONI T OR I NG & LABORATORY DI VI SI ON STATI ONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS ( F OR FIELD DATA RECORD)Page A2-7

-

FILE NO . : T-04-014 PROJECT NAME: Clovis 2 RUN NO. : C2W Post

SUMMARY OF TEST DATA

--------------------- Vol ume of Gas Samp l ed (Vm): 87.09 cubic feet Vm Me ter Cal. Factor (Y) 1.001 Me t er Te mperat ure (T m ) : 520 deg. R Bar o me tric Pressure (Pb): 30.05 inches Hg Avg. de l t a H Orifice Press. (dH avg): 1

. 683 inches H2O Pb + dH avg: 30.17 inches Hg. O2 in Stack ( %O2

) : 20.90 percent CO in Stack ( %CO

) : 0.0000 percent CO2 i n Stack ( %CO2

) : 0.00 percent N2 in Stack ( %N2

) : 79.10 percent Pi t ot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.29 /(inches H2O) S tack Te mperat ure (Ts) 522 deg. R S tatic Pressure -0.15 inches H2O Abso l ute Stack Pressure (Ps) 30.04 inches Hg S tack D i mens ions 12 inches dia. S tack Area (As) 0

. 785 square feet H2O i n I mp

i ngers and Silica Gel (Vlc): 18 . 2 m illilit ers Sampl i ng T i me (t): 120 m i nu t es Nozz l e D i a me

ter ( Dn): 0.375 inches Tot a l Chrom i u m Mass Collected ( M n): 120 nanograms Hexavalent Cr. M

ass Collected ( M

n): 139 nanograms

CALCULATED RESULTS

------------------- Corrected Sa m

ple Volume (Vm std): 89.27 DSCF (68 deg

. F) W at er Vapor in Stack (Bws): 1.0 percent by volume S tack Gas Molecular W t, Dry ( M

d): 28.84 lb/lb mo l e S tack Gas Molecular W t, Wet 28.73 lb/lb mo l e S tack Gas Ve locity (Vs): 16.00 feet/second S tack Gas F low Rate (Qs): 758 DSCFM(68 deg.F) Isokinetic Ratio ( % I): 100.5 percent Tot a l C r M ass Conc . ( Cs): 1

. 3442506 nanograms/dscf* Hex. Cr. Mass Conc. (Cs): 1

. 5570903 nanograms/dscf Tot a l C r M ass Conc: 47 nanograms/dsc m * Hex. Cr. Mass Conc: 55 nanograms/dsc m Tot a l C r. E m ission Rate ( Wm

) : 0.06 m illi gra ms

/ hr Total Cr.* Hex. Cr. Emission Rate ( Wm ) : 0.07 m illi gra ms

/ hr Hex. Cr. MONI TORI NG & LABORATORY DI VISI ON STATIONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS ( FOR FI ELD DATA RECORD)Page A2-8 

### (This page intentionally blank)

## Appendix A3

Clovis 3 Calculated Results

### (This page intentionally blank)Page A3- 1 Table A3-1a Clovis Specialty Plating – Test Week 3 Indoor (PQ-100) Ambient Hexavalent Chromium Sampling Results
(Ambient indoor sampling on rectifier during source testing with capture hood in place.)

Sample Number: C30-RA C31-RA C32-RA C33-RA Sample Date: 5/24/05 5/24/05 5/25/05 5/25/05

Sampling Time (minutes) 264 122 128 125 Volume Sampled (liters) 2640 1220 1280 1250

Cr (VI) Collected (ng/sample) 5837 1964 646 1069

Indoor Ambient Concentration (ng/m 3 ) 2,200 1,600 510 860 This rectifier is next to the plating tank, but outside the source test capture hood.

Table A3-1b Clovis Specialty Plating – Test Week 3 Indoor (PQ-100) Ambient Hexavalent Chromium Sampling Results
(Ambient indoor sampling during source testing with capture hood in place.)

Sample Number: C31-CA C32-CA C33-CA Sample Date: 5/24/05 5/25/05 5/25/05

Sampling Time (minutes) 132 129 121 Volume Sampled (liters) 1320 1290 1210

Cr (VI) Collected (ng/sample) 1425 978 1067

Indoor Ambient Concentration (ng/m 3 ) 1,100 760 880 CA samples parallel RA samples above - away from the tank and rectifier, but in the same room. RA samples were collected at the same location as Clovis 1 indoor samples.Page A3-2 Chromium Source Testing Results Project: Clovis Plating Sample Collection: May 2005 (Clovis 3)

Probes and Impingers

ml of sample Total Cr Total Cr Cr(VI) Cr(VI) Cr (VI) as Sample ID collected ng/ml ng recovered ng/ml ng recovered % of Total Cr C34-Blank 101.9 <1.0 <100

C31-I1 107.5 14.0 1500 14.0 1500 100.0% C31-I2 104 2.9 300 1.8 190 63.3% C31-P 105.5 170.0 18000 170.0 18000 100.0% 

### Totals: 19,800 19,690 99.4% C32-I1 119.7 10.0 1200 10.0 1200 100.0% C32-I2 84 1.0 84 1.0 84 100.0% C32-P 133.6 100.0 13000 92.0 12000 92.3% 

### Totals: 14,284 13,284 93.0% C33-I1 103.5 17.0 1800 16.0 1700 94.4% C33-I2 98 6.0 590 4.1 400 67.8% C33-P 134 120.0 16000 120.0 16000 100.0% 

### Totals: 18,390 18,100 98.4% C3WPRE-I1 98.8 <1.0 <75 0.8 30 C3WPRE-I2 100.8 <1.0 <100 <0.2 <20 C3WPRE-P 74.9 <1.0 <100 0.6 45 

### Totals: 0 75
C34-I1 94.3 <1.0 <94 0.3 28 C34-I2 105.1 <1.0 <110 0.2 21 C34-P 145.8 1.0 150 0.9 130 86.7% 

### Totals: 150 179 89.9% The limit of detection (LOD) for Cr by GFAA is 1.0 ng/ml. The LOD for Cr 6+ by IC is 0.2 ng/ml.



### Indoor Ambient Filters

Air Volume Cr(VI) Cr(VI) Cr(VI) Plating Tank Filter ID liters ng/ml ng recovered ng/l ng/m3 Total amp-hrs

C30-RA* 2,640 389.1 5837 2.211 2,211 0* C31-RA 1,220 130.91 1964 1.610 1,610 385 C31-CA 1,320 95.03 1425 1.080 1,080 " C32-RA 1,280 43.05 646 0.505 505 309 C32-CA 1,290 65.21 978 0.758 758 " C33-RA 1,250 71.25 1069 0.855 855 316 C33-CA 1,210 71.14 1067 0.882 882 "
extraction volume = ~15 ml. * C30-RA was collected during sampling equipment setup. There was no plating at that time.Page A3-3

FI LE NO. : T-04-014 PROJECT NAME: Clovis 3 RUN NO. : C31

SUMMARY OF TEST DATA

--------------------- Vo l u me of Gas Samp l ed (Vm): 105.085 cubic feet Vm Me ter Cal. Factor (Y) 0.973 M eter Te mperat ure (T m ) : 520 deg. R Barometric Pressure (Pb): 29

. 56 inches Hg Avg. de l t a H Orifice Press. (d H avg): 2.342 inches H2O Pb + dH avg: 29.73 inches Hg. O2 in Stack ( %O2

) : 20.90 percent CO in Stack ( %CO

) : 0

. 0000 percent CO2 i n Stack ( %CO2

) : 0.00 percent N2 in Stack ( %N2): 79.10 percent Pi t ot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.34 /(inches H2O) S t ack Temperat ure (Ts) 551 deg. R S t atic Pressure -0.20 inches H2O Abso l ute Stack Pressure (Ps) 29.55 inches Hg S t ack D i mens ions 12 inches dia. S t ack Area (As) 0.785 square feet H2O i n I mp

i ngers and Silica Gel ( Vlc): 25.5 m illilit ers Sampl i ng T i me (t): 120 m i nu t es Nozz l e D i a me

ter ( Dn): 0.375 inches Tota l Chrom i u m Mass Collected ( M n): 19,800 nanograms Hexavalent Cr. Mass Collected ( M n): 19,690 nanograms

CALCULATED RESULTS

------------------- Corrected Sa m

ple Volume (Vm std): 103.17 DSCF (68 deg

. F) W ater Vapor in Stack (Bws): 1 . 2 percent by volume S t ack Gas Mo lecular W t, Dry (Md): 28.84 lb/lb mo l e S t ack Gas Mo lecular W t, Wet 28.71 lb/lb mo l e S t ack Gas Veloc ity ( Vs): 19.75 feet/second S t ack Gas Flow Rate (Qs): 871 DSCFM(68 deg.F) Isokinetic Ratio ( % I): 101.2 percent Tota l C r M ass Conc . ( Cs): 191.91807 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 190.85185 nanograms/dscf Tota l C r M ass Conc: 6,777 nanograms/dsc m Hex. Cr. Mass Conc: 6,740 nanograms/dsc m Tota l C r. E m ission Rate ( Wm

) : 10.03 m illi gra m

s/hr Total Cr. Hex. Cr. Emission Rate ( Wm ) : 9.97 m illi gra m

s/hr Hex. Cr. MONI T OR I NG & LABORATORY DIVISI ON STATI ONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS ( F OR FIELD DATA RECORD)Page A3-4 FI LE NO. : T-04-014 PROJECT NAME: Clovis 3 RUN NO. : C32

SUMMARY OF TEST DATA

--------------------- Vo l u me of Gas Samp l ed (Vm): 98

. 78 cubic feet Vm Me ter Cal. Factor (Y) 0.973 M eter Te mperat ure (T m ) : 520 deg. R Barometric Pressure (Pb): 29

. 57 inches Hg Avg. de l t a H Orifice Press. (d H avg): 2.038 inches H2O Pb + dH avg: 29.72 inches Hg. O2 in Stack ( %O2

) : 20.90 percent CO in Stack ( %CO

) : 0

. 0000 percent CO2 i n Stack ( %CO2

) : 0.00 percent N2 in Stack ( %N2): 79.10 percent Pi t ot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.32 /(inches H2O) S t ack Temperat ure (Ts) 546 deg. R S t atic Pressure -0.21 inches H2O Abso l ute Stack Pressure (Ps) 29.55 inches Hg S t ack D i mens ions 12 inches dia. S t ack Area (As) 0.785 square feet H2O i n I mp

i ngers and Silica Gel ( Vlc): 21.4 m illilit ers Sampl i ng T i me (t): 120 m i nu t es Nozz l e D i a me

ter ( Dn): 0.375 inches Tota l Chrom i u m Mass Collected ( M n): 14,284 nanograms Hexavalent Cr. Mass Collected ( M n): 13,284 nanograms

CALCULATED RESULTS

------------------- Corrected Sa m

ple Volume (Vm std): 96.94 DSCF (68 deg

. F) W ater Vapor in Stack (Bws): 1 . 0 percent by volume S t ack Gas Mo lecular W t, Dry (Md): 28.84 lb/lb mo l e S t ack Gas Mo lecular W t, Wet 28.72 lb/lb mo l e S t ack Gas Veloc ity ( Vs): 18.59 feet/second S t ack Gas Flow Rate (Qs): 828 DSCFM(68 deg.F) Isokinetic Ratio ( % I): 100.0 percent Tota l C r M ass Conc . ( Cs): 147.35093 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 137.03512 nanograms/dscf Tota l C r M ass Conc: 5,204 nanograms/dsc m Hex. Cr. Mass Conc: 4,839 nanograms/dsc m Tota l C r. E m ission Rate ( Wm

) : 7.32 m illi gra m

s/hr Total Cr. Hex. Cr. Emission Rate ( Wm ) : 6.81 m illi gra m

s/hr Hex. Cr. MONI T OR I NG & LABORATORY DIVISI ON STATI ONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS ( F OR FIELD DATA RECORD)Page A3-5 FI LE NO. : T-04-014 PROJECT NAME: Clovis 3 RUN NO. : C33

SUMMARY OF TEST DATA

--------------------- Vo l u me of Gas Samp l ed (Vm): 99.585 cubic feet Vm Me ter Cal. Factor (Y) 0.973 M eter Te mperat ure (T m ) : 520 deg. R Barometric Pressure (Pb): 29

. 57 inches Hg Avg. de l t a H Orifice Press. (d H avg): 2.146 inches H2O Pb + dH avg: 29.73 inches Hg. O2 in Stack ( %O2

) : 20.90 percent CO in Stack ( %CO

) : 0

. 0000 percent CO2 i n Stack ( %CO2

) : 0.00 percent N2 in Stack ( %N2): 79.10 percent Pi t ot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.33 /(inches H2O) S t ack Temperat ure (Ts) 552 deg. R S t atic Pressure -0.20 inches H2O Abso l ute Stack Pressure (Ps) 29.56 inches Hg S t ack D i mens ions 12 inches dia. S t ack Area (As) 0.785 square feet H2O i n I mp

i ngers and Silica Gel ( Vlc): 13.8 m illilit ers Sampl i ng T i me (t): 120 m i nu t es Nozz l e D i a me

ter ( Dn): 0.375 inches Tota l Chrom i u m Mass Collected ( M n): 18,390 nanograms Hexavalent Cr. Mass Collected ( M n): 18,100 nanograms

CALCULATED RESULTS

------------------- Corrected Sa m

ple Volume (Vm std): 97.75 DSCF (68 deg

. F) W ater Vapor in Stack (Bws): 0 . 7 percent by volume S t ack Gas Mo lecular W t, Dry (Md): 28.84 lb/lb mo l e S t ack Gas Mo lecular W t, Wet 28.76 lb/lb mo l e S t ack Gas Veloc ity ( Vs): 18.90 feet/second S t ack Gas Flow Rate (Qs): 836 DSCFM(68 deg.F) Isokinetic Ratio ( % I): 99 . 8 percent Tota l C r M ass Conc . ( Cs): 188.12368 nanograms/dscf Hex. Cr. Mass Conc. (Cs): 185.15708 nanograms/dscf Tota l C r M ass Conc: 6,643 nanograms/dsc m Hex. Cr. Mass Conc: 6,539 nanograms/dsc m Tota l C r. E m ission Rate ( Wm

) : 9.44 m illi gra m

s/hr Total Cr. Hex. Cr. Emission Rate ( Wm ) : 9.29 m illi gra m

s/hr Hex. Cr. MONI T OR I NG & LABORATORY DIVISI ON STATI ONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS ( F OR FIELD DATA RECORD)Page A3-6



### F ILE NO.: T-04-014 PROJECT NAME: Cl ovis 3 RUN NO. : C3WPRE

SUMMARY OF TEST DATA

--------------------- Vo l ume of Gas Samp l ed (V m ) : 102.22 cub ic feet Vm Me ter Cal. Factor (Y) 1.001 Me ter Te m perature (T m

) : 520 deg. R Barometric Pressure (Pb): 30.34 inches Hg Avg. delta H Orifice Press. (dH avg): 2.267 inches H2O Pb + dH avg: 30.51 inches Hg. O2 i n St ack ( %O2

) : 20.90 percent CO i n St ack ( %CO

) : 0.0000 percent CO2 i n Stack ( %CO2 ) : 0.00 percent N2 i n St ack ( %N2

) : 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.34 /(inches H2O) Stack Te m

perature (Ts) 523 deg. R Static Pressure -0.20 inches H2O Abso l ute Stack Pressure (Ps) 30.33 inches Hg Stack Di m

ens i ons 12 inches dia. Stack Area (As) 0.785 square feet H2O i n I m

p i ngers and S ilica Gel ( Vlc): 18.2 m illilit ers Sampl i ng T i me (t): 120 m i nutes Nozz l e D i a me

ter ( Dn): 0.375 inches Total Chro m

i um Mass Col l ected ( Mn) : 75 nanograms* Hexava l en t Cr. Mass Co l l ected ( Mn) : 75 nanograms

CALCULATED RESULTS

------------------- Corrected Sa mpl e Vo l ume (Vm std): 105.93 DSCF (68 deg.F) W ater Vapor in Stack (Bws): 0.8 percent by volu me Stack Gas Mol ecu l ar W t, D ry ( Md) : 28.84 lb/lb mol e Stack Gas Mol ecu l ar W t, W et 28.75 lb/lb mol e Stack Gas Ve l ocity (Vs): 18.66 feet/second Stack Gas Fl ow Rate ( Qs): 892 DSCFM(68 deg.F) Isokinetic Ratio ( % I): 101.4 percent Total Cr Mass Conc . ( Cs): 0.7079907 nanograms/dscf* Hex

. Cr. Mass Conc . ( Cs): 0.7079907 nanograms/dscf Total Cr Mass Conc: 25 nanograms/dscm* Hex

. Cr. Mass Conc: 25 nanograms/dscm Total Cr. E m

ission Rate ( Wm

) : 0.04 m illi gra m

s/hr Total Cr.* Hex

. Cr. Emission Rate ( Wm ) : 0.04 m illi gra m

s/hr Hex. Cr. * Used hexava l ent chro m i um results for total chro me. Total chro me results were below detection li m its MON I TORI NG & LABORATORY DI VI SI ON STATI ONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS (FOR F I ELD DATA RECORD)Page A3-7 FI LE NO. : T-04-014 PROJECT NAME: Clovis 3 RUN NO. : C34/ C40 (post3&pre4)

SUMMARY OF TEST DATA

--------------------- Vo l u me of Gas Samp l ed (Vm): 110.86 cubic feet Vm Me ter Cal. Factor (Y) 0.973 M eter Te mperat ure (T m ) : 520 deg. R Barometric Pressure (Pb): 29

. 89 inches Hg Avg. de l t a H Orifice Press. (d H avg): 2.600 inches H2O Pb + dH avg: 30.08 inches Hg. O2 in Stack ( %O2

) : 20.90 percent CO in Stack ( %CO

) : 0

. 0000 percent CO2 i n Stack ( %CO2

) : 0.00 percent N2 in Stack ( %N2): 79.10 percent Pi t ot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.36 /(inches H2O) S t ack Temperat ure (Ts) 537 deg. R S t atic Pressure -0.20 inches H2O Abso l ute Stack Pressure (Ps) 29.88 inches Hg S t ack D i mens ions 12 inches dia. S t ack Area (As) 0.785 square feet H2O i n I mp

i ngers and Silica Gel ( Vlc): 8.9 m illilit ers Sampl i ng T i me (t): 120 m i nu t es Nozz l e D i a me

ter ( Dn): 0.375 inches Tota l Chrom i u m Mass Collected ( M n): 150 nanograms Hexavalent Cr. Mass Collected ( M n): nanograms

CALCULATED RESULTS

------------------- Corrected Sa m

ple Volume (Vm std): 110.12 DSCF (68 deg

. F) W ater Vapor in Stack (Bws): 0 . 4 percent by volume S t ack Gas Mo lecular W t, Dry (Md): 28.84 lb/lb mo l e S t ack Gas Mo lecular W t, Wet 28.79 lb/lb mo l e S t ack Gas Veloc ity ( Vs): 20.32 feet/second S t ack Gas Flow Rate (Qs): 936 DSCFM(68 deg.F) Isokinetic Ratio ( % I): 100.5 percent Tota l C r M ass Conc . ( Cs): 1.3621964 nanograms/dscf Hex. Cr. Mass Conc. (Cs): nanograms/dscf Tota l C r M ass Conc: 48 nanograms/dsc m Hex. Cr. Mass Conc: nanograms/dsc m Tota l C r. E m ission Rate ( Wm

) : 0.08 m illi gra m

s/hr Total Cr. Hex. Cr. Emission Rate ( Wm ) : m illi gra m

s/hr Hex. Cr. MONI T OR I NG & LABORATORY DIVISI ON STATI ONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS ( F OR FIELD DATA RECORD)Page A3-8 

### (This page intentionally blank)

## Appendix A4

Clovis 4 Calculated Results

### (This page intentionally blank)Page A4- 1



### Sample Collection: JUNE 2005

Air Volume Cr(VI) Cr(VI) Plating Tank Filter ID liters ng/ml ng recovered ng/liter ng/m 3 Total amp-hrs C41-RA 1,330 98.68 1480 1.113 1113 356 C41-CA 1,320 206.81 3102 2.350 2350 " C41-CAC 136 21.67 325 2.390 2390 " C42-RA 1,570 46.91 704 0.448 448 299 C42-CA 1,540 122.14 1832 1.190 1190 " 42-CAC 171 " C43-RA 1,200 63.13 947 0.789 789 345 C43-CA 1,190 101.59 1524 1.281 1281 " C43-CAC 131 12.91 194 1.481 1481 "
extraction volume = ~15 ml.

-CAC sampler was located ~1 meter from CA sampler but sampled at 1 lpm instead of 10 lpm. -CA sampler was located behind and on the opposite side of the sampling hood. -RA sampler was located on the plating tank rectifier and next to the sampling hood.



### (with Capture Hood over Plating Tank)

Table A4-1

Indoor Ambient Hexavalent Chromium Results Clovis Specialty Plating (Clovis 4) Test

Cr(VI)Page A4-2 ml of sample Total Cr Total Cr Cr(VI) Cr(VI) Cr (VI) as Sample ID collected ng/ml ng recovered ng/ml ng recovered % of Total Cr C34-BLK 101.9 <1.0 <100 <0.2 <20

C41-I1 105.0 31.0 3200 22.0 2400 75.0% C41-I2 105.9 6.2 660 4.8 510 77.3% C41-P 74.7 500.0 37000 360.0 27000 73.0% 

### Totals: 40,860 29,910 73.2% C42-I1 108.4 15.0 1600 13.0 1400 87.5% C42-I2 108.6 12.0 1300 9.1 990 76.2% C42-P 73.9 170.0 12000 100.0 7500 62.5% 

### Totals: 14,900 9,890 66.4% C43-I1 105.8 25.0 2700 23.0 2500 92.6% C43-I2 106.6 5.5 590 4.9 520 88.1% C43-P 92.9 280.0 26000 230.0 22000 84.6% 

### Totals: 29,290 25,020 85.4% C34/40-I1 94.3 <1.0 <94 0.3 28 C34/40-I2 105.1 <1.0 <110 0.2 21 C34/40-P 145.8 1.0 150 0.9 130 86.7% 

### Totals: 150 179 119.3% C44-I1 127.2 <1.0 <130 0.2 25 C44-I2 65.6 6.9 450 0.5 33 7.3% C44-P 163.2 1.4 230 0.6 100 43.5% 

### Totals: 680 158 23.2% The limit of detection (LOD) for Cr by GFAA is 1.0 ng/ml. The LOD for Cr 6+ by IC is 0.2 ng/ml.



### Indoor Ambient Filters

Air Volume Cr(VI) Cr(VI) Plating Tank Filter ID liters ng/ml ng recovered ng/l ng/m3 Total amp-hrs C41-RA 1,330 98.68 1480 1.113 1113 356 C41-CA 1,320 206.81 3102 2.350 2350 " C41-CAC 136 21.67 325 2.390 2390 " C42-RA 1,570 46.91 704 0.448 448 299 C42-CA 1,540 122.14 1832 1.190 1190 " 42-CAC 171 " C43-RA 1,200 63.13 947 0.789 789 345 C43-CA 1,190 101.59 1524 1.281 1281 " C43-CAC 131 12.91 194 1.481 1481 "
extraction volume = ~15 ml. -RA sampler was located on the plating tank rectifier and next to the sampling hood. -CA sampler was located behind behind and on the opposite side of the sampling hood. -CAC sampler was located ~1 meter from CA sampler but sampled at 1 lpm instead of 10 lpm. Cr(VI) Chromium Source Testing Results Project: Clovis Plating Sample Collection: JUNE/JULY 2005 (Clovis 4) Probes and ImpingersPage A4-3



### F ILE NO.: T-04-014 PROJECT NAME: Cl ovis 4 RUN NO. : C41

SUMMARY OF TEST DATA

--------------------- Vo l ume of Gas Sampl ed (Vm): 112.97 cub ic feet Vm Me ter Cal. Factor (Y) 0.973 Me ter Te mperature (T m ) : 520 deg. R Barometric Pressure (Pb): 29.57 i nches Hg Avg. delta H Orifice Press. (dH avg): 2.867 i nches H2O Pb + dH avg: 29.78 i nches Hg. O2 i n Stack ( %O2

) : 20.90 percent CO i n Stack ( %CO

) : 0.0000 percent CO2 i n Stack ( %CO2 ) : 0.00 percent N2 i n Stack ( %N2

) : 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.37 /(inches H2O) Stack Te mperature (Ts) 547 deg. R Static Pressure -0.24 i nches H2O Abso l ute Stack Pressure (Ps) 29.55 i nches Hg Stack Di mens i ons 12 i nches d i a. Stack Area (As) 0.785 square feet H2O i n I mpi ngers and S ilica Gel ( Vlc): 31.3 m illilit ers Sampl i ng T i me (t): 120 m i nutes Nozz l e Di ameter ( Dn): 0.375 i nches Total Chro m

i um Mass Col l ected ( Mn) : 40,860 nanogra ms Hexava l ent Cr. Mass Co l l ected ( Mn) : 29,910 nanogra ms

CALCULATED RESULTS

------------------- Corrected Sa mpl e Vo l ume ( Vm s td): 111.09 DSCF (68 deg.F) W ater Vapor in Stack (Bws): 1.3 percent by volu me Stack Gas Mol ecu l ar W t, Dry ( Md) : 28.84 l b/lb mol e Stack Gas Mol ecu l ar W t, W et 28.69 l b/lb mol e Stack Gas Ve l ocity (Vs): 21.57 feet/second Stack Gas F l ow Rate ( Qs): 955 DSCFM(68 deg.F) Isokinetic Ratio ( % I): 99.3 percent Total Cr Mass Conc . ( Cs): 367.8047 nanogra m s/dscf Hex

. Cr. Mass Conc . ( Cs): 269.23736 nanogra m s/dscf Total Cr Mass Conc: 12,989 nanogra m s/dsc m Hex

. Cr. Mass Conc: 9,508 nanogra m s/dsc m Total Cr. E m

ission Rate ( Wm

) : 21.08 m illi gra m

s/hr Total Cr. Hex

. Cr. Em

ission Rate ( Wm

) : 15.43 m illi gra m

s/hr Hex. Cr. MONI TORI NG & LABORATORY DI VI SI ON STATI ONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS (FOR F I ELD DATA RECORD)Page A4-4



### -

F ILE NO.: T-04-014 PROJECT NAME: Cl ovis 4 RUN NO. : C42

SUMMARY OF TEST DATA

--------------------- Vo l ume of Gas Sampl ed (Vm): 102.27 cub ic feet Vm Me ter Cal. Factor (Y) 0.973 Me ter Te mperature (T m ) : 520 deg. R Barometric Pressure (Pb): 29.54 i nches Hg Avg. delta H Orifice Press. (dH avg): 2.175 i nches H2O Pb + dH avg: 29.70 i nches Hg. O2 i n Stack ( %O2

) : 20.90 percent CO i n Stack ( %CO

) : 0.0000 percent CO2 i n Stack ( %CO2 ) : 0.00 percent N2 i n Stack ( %N2

) : 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.33 /(inches H2O) Stack Te mperature (Ts) 547 deg. R Static Pressure -0.17 i nches H2O Abso l ute Stack Pressure (Ps) 29.53 i nches Hg Stack Di mens i ons 12 i nches d i a. Stack Area (As) 0.785 square feet H2O i n I mpi ngers and S ilica Gel ( Vlc): 34.7 m illilit ers Sampl i ng T i me (t): 120 m i nutes Nozz l e Di ameter ( Dn): 0.375 i nches Total Chro m

i um Mass Col l ected ( Mn) : 14,900 nanogra ms Hexava l ent Cr. Mass Co l l ected ( Mn) : 9,890 nanogra ms

CALCULATED RESULTS

------------------- Corrected Sa mpl e Vo l ume ( Vm s td): 100.30 DSCF (68 deg.F) W ater Vapor in Stack (Bws): 1.6 percent by volu me Stack Gas Mol ecu l ar W t, Dry ( Md) : 28.84 l b/lb mol e Stack Gas Mol ecu l ar W t, W et 28.66 l b/lb mol e Stack Gas Ve l ocity (Vs): 18.96 feet/second Stack Gas F l ow Rate ( Qs): 837 DSCFM(68 deg.F) Isokinetic Ratio ( % I): 102.3 percent Total Cr Mass Conc . ( Cs): 148.55963 nanogra m s/dscf Hex

. Cr. Mass Conc . ( Cs): 98.607701 nanogra m s/dscf Total Cr Mass Conc: 5,246 nanogra m s/dsc m Hex

. Cr. Mass Conc: 3,482 nanogra m s/dsc m Total Cr. E m

ission Rate ( Wm

) : 7.46 m illi gra m

s/hr Total Cr. Hex

. Cr. Em

ission Rate ( Wm

) : 4.95 m illi gra m

s/hr Hex. Cr. MONI TORI NG & LABORATORY DI VI SI ON STATI ONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS (FOR F I ELD DATA RECORD)Page A4-5



### -

F ILE NO.: T-04-014 PROJECT NAME: Cl ovis 4 RUN NO. : C43

SUMMARY OF TEST DATA

--------------------- Vo l ume of Gas Sampl ed (Vm): 104.11 cub ic feet Vm Me ter Cal. Factor (Y) 0.973 Me ter Te mperature (T m ) : 520 deg. R Barometric Pressure (Pb): 29.52 i nches Hg Avg. delta H Orifice Press. (dH avg): 2.333 i nches H2O Pb + dH avg: 29.69 i nches Hg. O2 i n Stack ( %O2

) : 20.90 percent CO i n Stack ( %CO

) : 0.0000 percent CO2 i n Stack ( %CO2 ) : 0.00 percent N2 i n Stack ( %N2

) : 79.10 percent Pitot Tube Factor (Cp) 0.84 Avg. of Sqrt. of Pitot Press. (/dP avg): 0.34 /(inches H2O) Stack Te mperature (Ts) 555 deg. R Static Pressure -0.20 i nches H2O Abso l ute Stack Pressure (Ps) 29.51 i nches Hg Stack Di mens i ons 12 i nches d i a. Stack Area (As) 0.785 square feet H2O i n I mpi ngers and S ilica Gel ( Vlc): 27.7 m illilit ers Sampl i ng T i me (t): 120 m i nutes Nozz l e Di ameter ( Dn): 0.375 i nches Total Chro m

i um Mass Col l ected ( Mn) : 29,290 nanogra ms Hexava l ent Cr. Mass Co l l ected ( Mn) : 25,020 nanogra ms

CALCULATED RESULTS

------------------- Corrected Sa mpl e Vo l ume ( Vm s td): 102.07 DSCF (68 deg.F) W ater Vapor in Stack (Bws): 1.3 percent by volu me Stack Gas Mol ecu l ar W t, Dry ( Md) : 28.84 l b/lb mol e Stack Gas Mol ecu l ar W t, W et 28.70 l b/lb mol e Stack Gas Ve l ocity (Vs): 19.80 feet/second Stack Gas F l ow Rate ( Qs): 864 DSCFM(68 deg.F) Isokinetic Ratio ( % I): 100.9 percent Total Cr Mass Conc . ( Cs): 286.95378 nanogra m s/dscf Hex

. Cr. Mass Conc . ( Cs): 245.12064 nanogra m s/dscf Total Cr Mass Conc: 10,134 nanogra m s/dsc m Hex

. Cr. Mass Conc: 8,656 nanogra m s/dsc m Total Cr. E m

ission Rate ( Wm

) : 14.88 m illi gra m

s/hr Total Cr. Hex

. Cr. Em

ission Rate ( Wm

) : 12.71 m illi gra m

s/hr Hex. Cr. MONI TORI NG & LABORATORY DI VI SI ON STATI ONARY SOURCE TEST BRANCH

TEST SUMMARY AND RESULTS (FOR F I ELD DATA RECORD)Page A4-6 

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## Appendix B

Laboratory Results

### (This page intentionally blank)Page B- 1



### Probes and Impingers ml of sample Total Cr Total Cr Cr(VI) Cr(VI) Sample ID collected ng/ml ng recovered ng/ml ng recovered C1-I1 123 44 5400 44 5400 C1-I2 111 3.8 420 4.2 470 CB 115 <1.0 <120 <0.2 <23 C1-P 47 1400 68000 1400 65000 C2-I1 113.8 42 4800 40 4600 C2-I2 110.8 4.1 450 1.5 170 C2-P 73.4 1200 88000 1000 77000 C3-I1 117.3 40 4700 40 4700 C3-I2 116.7 4.5 530 3.8 440 C3-P 101.3 700 71000 650 66000 CP-I1 107.4 1.6 170 1.4 150 CP-I2 110.5 <1.0 <110 0.3 33 CP-P 76.2 5.1 390 4.5 340 The limit of detection (LOD) fro Cr by GFAA is 1.0 ng/ml. The LOD for Cr 6+ by IC is 0.2 ng/ml.


### Ambient Filters Air Volume Cr(VI) Cr(VI) Cr(VI) Filter ID liters ng/ml ng recovered ng/m3 C1A 2620 420 6400 2400 C2A 14130 500 7500 530 C3A 13940 370 5500 400 C4A 14030 110 1700 120 C5A 13068 240 3600 280 C6A 11150 100 1500 130 C7A 4653 140 2100 460
extraction volume = 15 ml. 

## Chromium Source Testing Results Project: Clovis Plating Sample Collection: May 2004 (Clovis 1)Page B-2

Date Solution ml of sample Cr(VI) Cr(VI) Total Cr Total Cr Analyzed Sample ID collected ng/ml ng recovered ng/ml ng recovered

10/27/2004 C21-I1 108.4 5.0 540 6.1 660 10/27/2004 C21-I2 106.9 2.4 260 3.1 330 10/27/2004 C21-P 68.8 300.0 21000 290 20000 10/27/2004 C22-I1 106.8 1.6 170 7.5 800 10/27/2004 C22-I2 105.1 1.0 110 1.5 160 10/27/2004 C22-P 64.9 170.0 11000 180 12000 10/27/2004 C23-I1 105.2 3.9 410 4.4 460 10/27/2004 C23-I2 104.6 1.5 160 2 210 10/27/2004 C23-P 78.4 260.0 20000 230 18000 10/27/2004 C24-B 60.4 <0.2 <12 <1.0 <60 

### Chromium Source Testing Results Project: Clovis Plating Sample Collection: Oct. 2004 (Clovis 2)

Indoor Ambient Filters

Air Volume Cr(VI) Cr(VI) Cr(VI) Filter ID liters ng/ml ng recovered ng/m3 C20-CA* 1880 18 270 150 C20-RA* 1960 20 300 150 C21-CA 3050 110 1700 560 C21-RA 3080 340 5000 1600 C22-CA 1380 47 700 510 C22-RA 1430 31 470 330 C23-CA** ** 54 810 ** C23-RA 1320 120 1800 1300 C24-BA blank <0.2 <3.0 blank
extraction volume = ~15 ml.Page B- 3

Probes and Impingers Date Solution ml of sample Analyzed Sample ID collected ng/ml ng recovered ng/ml ng recovered

6/7/2005 C31-I1 107.5 14.0 1500 14.0 1500 6/7/2005 C31-I2 104 1.8 190 2.9 300 6/7/2005 C31-P 105.5 170.0 18000 170.0 18000 6/7/2005 C32-I1 119.7 10.0 1200 10.0 1200 6/7/2005 C32-I2 84 1.0 84 1.0 84 6/7/2005 C32-P 133.6 92.0 12000 100.0 13000 6/7/2005 C33-I1 103.5 16.0 1700 17.0 1800 6/7/2005 C33-I2 98 4.1 400 6.0 590 6/7/2005 C33-P 134 120.0 16000 120.0 16000 Hexavalent & Total Chromium Laboratory Results

Project: Clovis Plating Data MAY/JUNE 2005 (Clovis 3)

Cr(VI) Total Cr



### Ambient Filters

Air Volume Cr (VI) Cr (VI) Filter ID liters ng/mL ng recovered/filter C33-CA * 71.14 1067 C33-RA * 71.25 1069 C32-CA * 65.21 978 C32-RA * 43.05 646 C30-RA * 389.1 5837 C31-RA * 130.91 1964 C31-CA * 95.03 1425 C41-RA * 98.68 1480 C41-CA * 206.81 3102 C41-CAC * 21.67 325 C43-RA * 63.13 947 C43-CA * 101.59 1524 C43-CAC * 12.91 194 C42-RA * 46.91 704 C42-CA * 122.14 1832 * Air Volume not provided. All results are in ng/filter units 

### Hexavalent Chromium Source Testing Results Project: Clovis Plating - Ambient Filters Data: JUNE / JULY 2005 Clovis 3 & 4)Page B-4

Probes and Impingers Date Solution ml of sample Cr(VI) Cr(VI) Total Cr Total Cr Analyzed Sample ID collected ng/ml ng recovered ng/ml ng recovered

12-Jul-05 C34-BLK 101.9 <0.2 <20 <1.0 <100 12-Jul-05 C34-I1 94.3 0.3 28 <1.0 94 12-Jul-05 C34-I2 105.1 0.2 21 <1.0 <110 12-Jul-05 C34-P 145.8 0.9 130 1.0 150 12-Jul-05 C41-I1 105.0 22.0 2400 31.0 3200 12-Jul-05 C41-I2 105.9 4.8 510 6.2 660 12-Jul-05 C41-P 74.7 360.0 27000 500.0 37000 12-Jul-05 C42-I1 108.4 13.0 1400 15.0 1600 12-Jul-05 C42-I2 108.6 9.1 990 12.0 1300 12-Jul-05 C42-P 73.9 100.0 7500 170.0 12000 12-Jul-05 C43-I1 105.8 23.0 2500 25.0 2700 12-Jul-05 C43-I2 106.6 4.9 520 5.5 590 12-Jul-05 C43-P 92.9 230.0 22000 280.0 26000 12-Jul-05 C44-I1 127.2 0.2 25 <1.0 <130 12-Jul-05 C44-I2 65.6 0.5 33 6.9 450 12-Jul-05 C44-P 163.2 0.6 100 1.4 230 Hexavalent & Total Chromium Laboratory Results Project: Clovis Plating (Clovis 4) Source Test

Data JUNE/JULY 2005

## Appendix C

Sketch of Capture Hood With Dimensions

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## Appendix D

Field Data Sheets

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