Document KJQYZwVEQxnkqYobmoKqDJ2x

3 Prepared by: Pace Analytical Services, Inc. Minnesota Field Services 1700 Elm Street, Suite 200 Minneapolis, MN 55414 Bradley G. Jacobson Project Manager ______________________ BACK TO MAIN Pace Analytical Services, Inc. 1700 Elm Street , Suite 200 Minneapolis, MN 55414 Phone: 612.607.1700 Fax: 612.607.6444 Port St. Lucie, Florida Water Resample and Area Investigation for the Empirical Human Exposure Assessment Multi- City Study Port St. Lucie, Florida January 24, 2001 Prepared under contract with: 3M ET&SS Field Analytical Services and Technologies Client Coordinator: Jess Eldridge 3M Lab Request: E01-0096 3M Department: 502180 Pace Project No.: 1040929 (Field) March 6, 2001 BACK TO MAIN Table of Contents Page Introduction 1 Sampling Protocols 2-4 Field Observations - Sampling 5-6 Field Observations - Area Investigation 7 Deviations from the GPO 8 Table 1 - Field Summary 9 Table 2 - Abbreviations 10 Table 3 - Listing of Samples Collected 11 Figure 1 - Sediment Sampling Figure 2 - Field Spiking Figure 3 - Quiet Water I Figure 4 - Quiet Water I Fish Figure 5 - Quiet Water I Surface Film Figure 6 - Quiet Water I Culvert Plume Figure 7 -Marina and Quiet Water I Figure 8 - Quiet Water II Figure 9 - Quiet Water III Figure 10 - Area Map Appendix A General Project Outline (GPO) A-1 Appendix B Field Data Log Sheets B-1 Appendix C Chain of Custody Forms C-1 BACK TO MAIN Introduction Pace Analytical Services, Inc. was contracted by the 3M Company to re-collect surface water samples for the Port St. Lucie Multi-City Study. Initial sampling was conducted in July 1999 by Battelle and again in July 2000 by Pace Analytical Services. The January 2001 re-sampling event was conducted to confirm previous information obtained during the July 1999 and July 2000 events. The scope of work for the January event was broadened to include two additional quiet water locations, sediment samples from each location, and replicate water and sediment samples from each side of QWI. Onsite activities included investigating potential sources of fluorochemical entry into the QWI pond. The sampling points of interest for the January 2001 event were: 1) the original quiet water pond (QWI) located near Martin County Marina at Mapp Rd and SW Chapman Way, 2) a small pond located near the intersection of Crossing and Matheson Avenue (QWII), and 3) a small pond located at Shady Lake and Matheson Avenue (QWIII). Refer to Figure 10 for area map. 3M personnel selected the QWII and QWIII sites in the field. The selection criteria for locating QWII and QWIII were primarily based on close proximity to QWI and sampling accessibility. The target analytes for this event were PFOS, PFOSA, POAA, PFHS, and TFA (fluorochemicals). Emphasis was placed on quality control measures such as extensive field matrix spiking at multiple concentration levels, duplicate samples, and procedures to reduce possible contamination during field collection. The sampling was conducted according to the specifications set forth in the 3M General Project Outline (GPO), except as noted in the report section "Deviations to the GPO". A summary of the field observations can be found in Table 1. Sampling locations were recorded for future reference with GPS longitude and latitude coordinates. Pace Analytical Page 1 BACK TO MAIN Sampling Protocols Equipment Preparation: The 1 liter NalgeneTM sample containers and the stainless steel sediment spatulas were rinsed with "Optima" grade methanol and DI (Type I water) prior to use. A new spatula was used for each pond sampled. However, for multiple sampling points within the same pond, the sediment spatulas were field decontaminated between samples by mechanical removal of visible contaminants followed by a thorough rinsing with methanol and Type I DI water. New nitrile gloves were worn at all times during the equipment preparation, sample collection and handling procedures. New gloves were donned with every change of sample location and/or sample matrix. Surface Water Samples: Samples were collected approximately 15 cm below the surface of the water by first submersing the sample container into the water. Then the container was uncapped, filled and recapped while continually submerged. This procedure was used to avoid capturing a possible concentrated surface film layer. Sediment Samples: Samples were collected using a stainless steel spatula attached to an extendable pole (Figure 1). The sediment samples were collected at each of the surface water sample locations. Approximately the top 2-4 centimeters of sediment were collected into the spatula. The spatula was then raised slowly to the surface to avoid loss of top sediment layer. Field Control Samples: 1. Field Blank Control Sample (FB): A sample container was filled with Type I DI water prior to project mobilization and labeled as FB-Filled. Another empty sample container was labeled as FB-Empty. The FB samples were exposed to the same conditions as the other samples, such as bottle preparation, sampling site conditions, storage, and shipping. One (1) FB set was required for this project. 2. Field Duplicate (FD): Each environmental sample was collected in duplicate. The duplicates were labeled with identical sample descriptions Pace Analytical Page 2 BACK TO MAIN except one was labeled with an ending identifier of "-K" for the 3M Environmental Laboratory and the other a "-C" for Centre Laboratory. Two blind duplicate samples ("K" and "C") were also collected for the water and sediment matrixes at QWI North. The identity of the blind duplicate location was withheld from the lab prior to analysis. 3. Field Matrix Spike (FMS) Quiet Water I East: Additional duplicate samples were collected for spiking from the QWI pond location which had been sampled in 1999 and 2000 (QWI East). Spiking for the QWI East location was done at two levels: 1 ppb and 25 ppb. These additional duplicate samples were identified as follows: a. QWI East-K-FMS-1 ppb Dup A and QWI East -K-FMS-1ppb Dup B b. QWI East -K-FMS-25 ppb Dup A and QWI East -K-FMS-25 ppb Dup B c. QWI East -C-FMS-1 ppb Dup A and QWI East -K-FMS-1ppb Dup B d. QWI East -C-FMS-25 ppb Dup A and QWI East -C-FMS-25 ppb DupB 4. Field Matrix Spike (FMS) New Locations: Two additional ponds were sampled for this monitoring event. The FMS samples for the new ponds were spiked at two levels: 200 ppt and 1 ppb. These additional samples were identified as follows, where the identifier was "QWII" for the quiet water II pond and "QWIII" for the quiet water III pond a. Identifier-K-FMS-200 ppt b. Identifier-K-FMS-1ppb c. Identifier-C-FMS-200 ppt d. Identifier-C-FMS-1ppb 5. Field Spike Control Sample (FSCS): Two sample containers were filled with Type I DI water. One was spiked at the 200 ppt level and the other at 1ppb. One FSCS set was prepared for this event. Note: spiking was performed at the end of the sampling day (see attached Figure 2). The 3M spiking instructions are attached within the GPO in Appendix A (Lisa Clemen). Pace Analytical Page 3 BACK TO MAIN Field Parameters: The latitude and longitude for each pond was logged using a Garmin hand held GPS. Field pH and temperature were analyzed using an Orion 230A digital pH meter (refer to Table 1). Pace Analytical Page 4 BACK TO MAIN Field Observations - Sampling A summary of the field observations can be found in Table 1. Quite Surface Water I: This is the original pond that was sampled in 1999 and 2000. The pond is relatively small and square in shape. The dimensions are approximately 56 yards X 55 yards, (see Figure 3). Water and sediment samples were collected at each of the four (4) sides of the pond. The water was fairly clear with some minnows present. A large fish, estimated to be around ten pounds, was also noted in the pond (see Figure 4). Styrofoam, plastic bags, cans and bottles were some of the litter noted in the water. A greenish film was also noted on the water surface (see Figure 5). Sediment samples were sandy with some small clams present. A culvert was also noted running into the pond. The influent from this culvert created a tan to gray plume as it entered the pond (see Figure 6). The owner of the marina informed the onsite personnel that it had rained approximately an inch on January 22, 2001. Water samples from this plume were collected in duplicate. The owner of the marina informed the sampling team that this pond used to be treated with herbicides to keep down algae growth. It was last treated about 1 years ago. As noted in Figure 7, the Martin County Marina is in close proximity to the Quiet Water I pond. The rest of the area is primarily residential. Pace Analytical Page 5 BACK TO MAIN Quiet Water II: The quiet water pond II was approximately 39 yards long X 9 yards wide and had a water depth of about 2 - 3 feet. The pond is connected to several other ponds by means of a culvert system (see Figure 8). It is believed these ponds divert storm runoff to the river. There was some litter evident in the water. This pond is located in a residential area. Quiet Water III: The quiet water pond III was approximately 257 yards long X 34 yards wide and was located within a "gated community". Onsite personnel gained access to the pond by obtaining permission from a member on the board of directors. The water was very green and had thick algae growth. (see Figure 9). Pace Analytical Page 6 BACK TO MAIN Field Observations - Area Investigation Martin County Marina: Onsite personnel surveyed the area surrounding the Quiet Water I pond in an effort to determine the possible cause for elevated fluorochemical levels in the pond. Adjacent to the pond is the Martin County Marina. The marina had a large boat storage building and there was considerable boat maintenance, such as hull refinishing and painting, taking place on the concrete dock area outside the building. There was a solvent odor in the air. Also noted were drainage grates to the south and to the west of the storage building, and the area stormwater runoff may collect in the quiet water I pond. Pace Analytical Page 7 BACK TO MAIN Deviations from the GPO The subsurface sampling device was not used for collecting the water samples. The surface water samples were collected manually by hand. Prior to using the syringes, they were to be rinsed a minimum of three times from three separate vials of methanol (nine rinses). However, for the 1 ppb and 25 ppb Field Matrix Spikes (FMS), only one rinse per methanol bottle and milli Q water was performed (the syringe was rinsed three times instead of nine). The 200 ppt spiking level was omitted for the quiet water I pond field matrix spike per Kris Hansen. For the new ponds, only one location was sampled per pond instead of two. The quiet water I culvert sample was added. Pace Analytical Page 8 BACK TO MAIN Port St. Lucie Resampling Lab Request: E01-0096 January 2001 Event Field Data Summary Table 1 Sampling Location January 24, 2001 event GPS Instrument reading (deg. and min.) January 24, 2001 event Conversion (deg., min. and sec.) pH Field units Latitude N27 10 . 996' Latitude N27 10' 59.8'' Quiet Water I East Longitude W080 16 . 340' Longitude W080 16' 20.4'' 7.5 Latitude N27 10 . 996' Latitude N27 10' 59.8'' Quiet Water I South Longitude W080 16 . 340' Longitude W080 16' 20.4'' 7.5 Latitude N27 10 . 996' Latitude N27 10' 59.8'' Quiet Water I West Longitude W080 16 . 340' Longitude W080 16' 20.4'' 7.5 Latitude N27 10 . 996' Latitude N27 10' 59.8'' Quiet Water I North Longitude W080 16 . 340' Longitude W080 16' 20.4'' 7.6 Latitude N27 10 . 996' Latitude N27 10' 59.8'' Quiet Water I Culvert Longitude W080 16 . 340' Longitude W080 16' 20.4'' 7.6 Quiet Water II Latitude N27 11 . 140' Latitude N27 11' 8.4'' Longitude W080 16 . 557' Longitude W080 16' 33.4'' 7.6 Quiet Water III Latitude N27 10 . 609' Latitude N27 10' 36.5'' Longitude W080 16 . 612' Longitude W080 16' 36.7'' 7.2 The Garmin GPS12 used for this project displays the position in degrees and minutes. Previous data was reported in degrees, minutes and seconds . For comparison to previous data, the fractional increment of the minute was multiplied by 60 to convert to seconds. The GPS coordinates from the Quiet Water I East were used as general coordinates for the entire pond. Water Temperature degree C 15.5 16.5 17.5 19.3 17.5 18.5 19.2 Comments Original July 2000 sampling point. Sediment samples quite sandy with some small clams. Sediment samples quite sandy with some small clams. Sediment samples quite sandy with some small clams. Also some rock structure. Sediment samples quite sandy with some small clams. Blind duplicates collected here. Milky brown to gray discharge entering into the pond. Minnows evident in plume. Sediment samples sandy with dark brown layer on surface and a tan colored lay underneath. Water was very green with lots of algae. Sediment was quite sandy. Gained permission for access. Pace Analytical Page 9 Port St. Lucie Resampling Lab Request: E01-0096 January 2001 Event Abbreviations Abbreviation C dup FB-Empty FB-Filled FMS FSCS K ppb ppt QWI QWII QWIII BACK TO MAIN Table 2 Full Description Sample for Centre Laboratory Duplicate sample collected same as original sample Field Blank Control Sample Empty Field Blank Control Sample Filled with Type I water Field Matrix Spike (either 200 ppt, 1 ppb,or 25 ppb) Field Spike Control Sample (either 200 ppt or 1 ppb) Sample for Kris Hansen (3M) part per billion part per trillion Quiet Surface Water One - Original pond sampled during 1999 and 2000 events Quiet Surface Water Two - New location at Crossing and Matheson Ave Quiet Surface Water Three - New location at Shady Lake and Matheson Ave Pace Analytical Page 10 BACK TO MAIN Port St. Lucie Resampling Lab Request: E01-0094 Listing of Samples Collected January 2001 Table 3 Location: Quiet Water I (QWI) Date/Time 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0845 1/24/01 0930 1/24/01 0930 1/24/01 0930 1/24/01 0930 1/24/01 0950 1/24/01 0950 1/24/01 0950 1/24/01 0950 1/24/01 1025 1/24/01 1025 1/24/01 1025 1/24/01 1025 1/24/01 1045 1/24/01 1045 Description QWI East-K QWI East-C QWI East Dup K QWI East Dup C QWI East-K-FMS- 1 ppb Dup A QWI East-K-FMS- 1 ppb Dup B QWI East-K-FMS-25 ppb Dup A QWI East-K-FMS-25 ppb Dup B QWI East-C-FMS-1 ppb Dup A QWI East-C-FMS-1 ppb Dup B QWI East-C-FMS-25 ppb Dup A QWI East-C-FMS-25 ppb Dup B QWI East -K-Sediment QWI East-C-Sediment QWI South-K QWI South-C QWI South-K-Sediment QWI South-C-Sediment QWI West-K QWI West-C QWI West-K-Sediment QWI West-C-Sediment QWI North-K QWI North-C QWI North-K-Sediment QWI North-C-Sediment QWI Culvert Discharge-K QWI Culvert Discharge-C Location: Quiet Water II (QWII) Date/Time Description 1/24/01 1201 QWII-K 1/24/01 1201 QWII-K-Dup 1/24/01 1201 QWII-C 1/24/01 1201 QWII-C-Dup 1/24/01 1201 QWII-K-FMS-200 ppt 1/24/01 1201 QWII-K-FMS-1 ppb 1/24/01 1201 QWII-C-FMS-200 ppt 1/24/01 1201 QWII-C-FMS-1 ppb 1/24/01 1201 QWII-K Sediment 1/24/01 1201 QWII-C Sediment Location: Quiet Water III (QWIII) Date/Time Description 1/24/01 1307 QWIII-K 1/24/01 1307 QWIII-C 1/24/01 1307 QWIII-K Sediment 1/24/01 1307 QWIII-C Sediment Location: Miscellaneous QC Date/Time Description 1/19/01 1330 FB-Filled 1/19/01 1330 FB-Empty 1/19/01 1330 FSCS-200 ppt 1/19/01 1330 FSCS-1 ppb 1/24/01 Blind Dup-K 1/24/01 Blind Dup-C 1/24/01 Blind Dup-K Sediment 1/24/01 Blind Dup C Sediment Pace Analytical Page 11 Figure 1 Sediment Sampling BACK TO MAIN Pace Analytical Page 12 Figure 2 Field Spiking BACK TO MAIN Pace Analytical Page 13 Figure 3 Quiet Water I BACK TO MAIN Pace Analytical Page 14 Figure 4 Quiet Water I Fish BACK TO MAIN Pace Analytical Page 15 Figure 5 Quiet Water I Surface Film BACK TO MAIN Pace Analytical Page 16 Figure 6 Quiet Water I Culvert Plume BACK TO MAIN Pace Analytical Page 17 Figure 7 Marina and Quiet Water I BACK TO MAIN Pace Analytical Page 18 Figure 8 Quiet Water II BACK TO MAIN Pace Analytical Page 19 Figure 9 Quiet Water III BACK TO MAIN Pace Analytical Page 20 Figure 10 Area Map BACK TO MAIN Pace Analytical Page 21 BACK TO MAIN Appendix A General Project Outline Pace Analytical A-1 BACK TO MAIN 3 Field Analytical Technologies Group / General Project Outline To: Kris Hansen - ET&SS Dale Bacon - ET&SS Kent Lindstrom - ET&SS Lisa Clemen - ET&SS James Lundberg - ET&SS Debra Favre - Pace Analytical Brad Jacobson - Pace Analytical Copy: Bill Reagen - ET&SS Rich Smith - Pace Don Stock - Pace From: Jess Eldridge 3M ET&SS Date: January 18, 2001 Subject: Port St. Lucie Resampling - Quiet Water Pond Dept. No., Project No. - 4291, 0010535009 Lab Request No. -E01-0096 Test Date(s) Week of January 21, 2001 Equipment Mobilization Travel Setup and Testing Equipment Take-down, Travel Equipment Demobilization 1/22/01 1/22-24/01 1/24/01 1/24-26/01 1/29/01 Reque ster Dale Bacon ET&SS Building 2-3E-09 Phone: 651-778-4736 Fax: 651-778-6176 Pace Analytical A-2 BACK TO MAIN Monitoring Coordinator Jess Eldridge 3M / ET&SS Building 2-3E-09 935 Bush Ave. PO Box 33331 St. Paul, MN 55133-3331 Telephone No. (651) 778-5233 Pager No. 1-888-732-6885 FAX No. (651) 778-4226 Monitoring Location / Contact(s) Port St. Lucie, Florida Test Objective The intent of this project is to confirm baseline information obtained during the July 29, 1999 Battelle sampling event, and the resampling done by Pace in July of 2000 at the quiet water pond in Palm City (Port St. Lucie). The results of the sampling and analysis will be used in the evaluation of the Multi-City Study. While on site make observations as to drainage culverts, building structures, and potential activities explaining relatively high fluorochemical content. Target Analytes PFOS, PFOSA, POAA, PFHS, and TFA Sampling Locations 1. Quiet Surface Water Palm City - Mapp Rd/SW Chapman Way Four locations (each side) of pond surface water and sediment 2. Several other ponds to be determined on-site Two locations per pond; surface water and sediment Test Conditions Monitoring will be performed during daylight, dry weather conditions. Dry conditions must exist for at least 24 hours prior to sampling Sampling Protocols Equipment Preparation: Duplicate samples will be collected; one set to be analyzed by Centre Analytical and another set to be analyzed by 3M. The 1 liter NalgeneTM sample containers will be methanol/DI (Type I water) rinsed prior to use. In cases where a transfer device such as a stainless steel bucket or scoop is required, field decontamination between samples types will include mechanical removal of visible contaminants followed by a thorough rinsing with methanol and Type I DI water. New nitrile gloves will be worn at all times during the sample collection and handling procedures. New gloves will be donned with every change of sample location and/or sample matrix. Subsurface Samples: Samples will be collected approximately 15 cm below the surface of the water by extending the subsurface sampling device with the sample container to an Pace Analytical A-3 BACK TO MAIN undisturbed area. The container will then be uncapped, filled and recapped while continually submerged. Field Control Samples: 1. Field Blank Control Sample (FB): Fill a sample container with Type I water prior to project mobilization and label as FB-Filled. Take one empty sample container and label as FB-Empty. Expose FB samples to the same conditions as the other samples such as bottle preparation, sampling site conditions, storage, and shipping. One (1) FB set is required for this project. 2. Field Duplicate (FD): Every sample will be collected in duplicate. Label with identical sample description except end with identifiers "-K " for one and "-C" for the other. Two blind duplicate water samples will be collected and submitted for analysis. The identification of the samples will be recorded by field personnel but the ID will be withheld from the lab prior to analysis. 3. Field Matrix Spike (FMS): Collect four (4) additional duplicate samples for spiking. Spiking is done at two levels: 200 ppt and 1 ppb, with the exception as noted below under "Exceptions". Each water type will therefore have the following spikes: a. Identifier-K-FMS-200 ppt b. Identifier-K-FMS-1ppb c. Identifier-C-FMS-200 ppt d. Identifier-C-FMS-1ppb Exceptions : For the Quiet Surface Water Palm City, IN ADDITION to the above FMS's, the samples will be spiked at a 25ppb level and the samples are to be collected in duplicate, that is: a. Identifier-K-FMS-1 ppb Dup A and Identifier-K-FMS-1ppb Dup B b. Identifier-K-FMS-25 ppb Dup A and Identifier-K-FMS-25 ppb Dup B c. Identifier-C-FMS-1 ppb Dup A and Identifier-K-FMS-1ppb Dup B d. Identifier-C-FMS-25 ppb Dup A and Identifier-C-FMS-25 ppb Dup B 4. Field Spike Control Sample (FSCS): Take two sample containers filled with Type I water and spike one at the 200 ppt level and the other at 1ppb. One FSCS set must be prepared for each day of sampling. Note: spiking will be performed at the end of the sampling day. Follow 3M spiking instructions attached. (Lisa Clemen) Field Parameters: Sampling location latitude and longitude will be logged using a Garmin hand held GPS. Special Precautions, QA/QC Post-Its are not to be used or in the possession of field staff during any phase of the sample handling, or in the mobilization/demobilization activities. Field technicians will wear only old, well laundered clothing - at least 6 washings since purchase. The use of water resistant clothing will be avoided if possible. Tyvek suits will not be worn during sample handling. Nitrile gloves will be worn at all times while collecting and handling samples. Pace Analytical A-4 BACK TO MAIN Field personnel will minimize contact with the following food and snack products: microwave popcorn, fast-food (sandwiches, chicken, French fries) pizza, bakery items, beverages, candy, cookies etc. - are packaged in wrappers treated with the chemicals of interest. Therefore, hands will be washed thoroughly after handling fast food, carryout food, or snacks. Prewrapped foods or snacks (like candy bars) will not be in the possession of the sampling team during sample collection or handling. No blue ice will be used during this project. Confidentiality The following information MAY be revealed to municipal officials by Pace field personnel: The samples are being collected and analyzed to support a life cycle analysis that is being conducted for a confidential client. The chemicals of interest are NOT listed as regulated pollutants or carcinogens by the EPA. Pace is contracted only to provide sampling services for this project and will not have access to analytical test results. Only under extenuating circumstances would a disclosure of the results be requested of the client. The following information MAY NOT be revealed to municipal officials by Pace field personnel: Who the client is What chemicals we are looking for What the chemicals are used for What is the nature of the chemicals (chemical class or structure) Estimated Project Cost $5500 Pace- Field Actual costs based on time and expenses Invoicing - send to monitoring coordinator including: Invoice Date Project Description Test Date 3M Project Number 3M Lab Request Number Cost Itemization Pace Analytical A-5 BACK TO MAIN Reporting Requirements The contractor will provide a summary report of related activities to the monitoring coordinator within two weeks after the sampling has been completed. Safety All applicable safety protocols must be followed in the field as well as and any specific local, state, city or facility safety requirements. Supplemental Information On-Site Personnel (tentative) Debra Favre - Pace Attachments - Spiking instructions - Aerial Photographs Note: Technicians are expected to be familiar with the original Battelle QAPP and final report. Some of the information contained within this GPO is covered in more detail in this material Responsibilities 3M Field Analytical Services Technologies (FAST) - Provide coordination/technical support for analytical testing requirements and subsequent sampling protocols - Provide the spiking apparatus, spiking solutions and spiking instructions Contractor - Pace Analytical Services Field Services Division - Organize and prepare equipment for transportation to project location and appropriate equipment demobilization following the project. - Perform necessary set-up and operation of equipment - Keep samples secure at all times, including the use of evidence tape on vehicle doors - Create customized field data sheets for ease of documentation and clarity - Fill out all necessary data sheets, sample labels, chain of custody records, and deliver samples to 3M to the attention of Lisa Clemmens. Lodging To be determined on the road Pace Analytical A-6 BACK TO MAIN Attachment Spiking Instructions: LAC 7/10/00 Prior to using glassware and bottles, rinse 3 times with methanol and 3 times with Milli-QTM water. Prior to using syringes rinse a minimum of 9 times with methanol (3 rinses from 3 separate vials). Usually the vials are labeled as 1, 2, 3 and syringes are rinsed starting at vial 1 ending at vial 3 (cleanest). The used MeOH is then placed in a waste container and disposed according to hazardous waste disposal procedures. Target analytes PFOS, PFOSA, POAA, PFHS, and TFA Spiking amounts: Spike Low Medium High Spike Solution ug/mL(pp m) 5.00 5.00 50.0 Spike Amount uL Final Volume mL Final Concentation ug/mL(ppm) 40 1000 0.000200 200 1000 0.00100 500 1000 0.0250 Final Concentation 200 ppt (pg/mL) 1.00 ppb (ng/mL) 25.0 ppb (ng/mL) Pace Analytical A-7 Attachment BACK TO MAIN Pace Analytical A-8 BACK TO MAIN Appendix B Field Data Log Sheets Pace Analytical B-1 BACK TO MAIN Pace Analytical B-2 BACK TO MAIN Pace Analytical B-3 BACK TO MAIN Pace Analytical B-4 BACK TO MAIN Pace Analytical B-5 BACK TO MAIN Pace Analytical B-6 BACK TO MAIN Pace Analytical B-7 BACK TO MAIN Pace Analytical B-8 BACK TO MAIN Pace Analytical B-9 BACK TO MAIN Pace Analytical B-10 BACK TO MAIN Pace Analytical B-11 BACK TO MAIN Appendix C Chain of Custody Forms Pace Analytical Page C-1 BACK TO MAIN Pace Analytical Page C-2 BACK TO MAIN Pace Analytical Page C-3 BACK TO MAIN Pace Analytical Page C-4 BACK TO MAIN Pace Analytical Page C-5 BACK TO MAIN Pace Analytical Page C-6