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ST0003-SY090317 1ierracon Consulting Engineers&Scientists Terracon Consultants, Inc. 8901 Carpenter Frwy.,Ste. 100 Dallas,TX 75247 Phone(214)630-1010 Fax(214)630-7070 www.terracon.com SURFACE WATER ASSESSMENT THWEATT PARK SOUTH COPPELL ROAD AND SANDY LAKE ROAD COPPELL, DALLAS COUNTY, TEXAS TERRACON PROJECT NO. 94097105A MARCH 17, 2009 Patrick Jacobs P[2141630 1010 Project Manager M[214]315 2306 Natural/Cultural Resource Services F[214]630 7070 wpjaco b s Cite rrac o n.co m lierrac.n 8Su901 ite:enter Freeway Dallas,Texas 75247 Geotechnical • Environmental Construction Materials Facilities CITY OF COPPELL COPPELL, TEXAS Prepared by: lierracon Consulting Engineers&Scientists DALLAS, TEXAS Delivering Success for Clients and Employees Since 1965 More Than 95 Offices Nationwide lierracon Consulting Engineers&Scientists March 17, 2009 Terracon Consultants, Inc. 8901 Carpenter Frwy.,Ste. 100 Mr. Albert Samaniego Dallas,TX 75247 City of Coppell Phone(214)630-1010 Engineering Department Fax(214)630-7070 255 Parkway Boulevard www.terracon.com Coppell, TX 75019 Re: Surface Water Assessment Thweatt Park South Coppell Road and Sandy Lake Road Coppel, Dallas County, Texas Project No. 94O971O5A Dear Mr. Samaniego: Terracon Consultants, Inc. (Terracon) is pleased to submit the enclosed Surface Water Assessment report addressing surafce water quality of the pond at Thweatt Park in Coppell, Texas. We appreciate the opportunity to perform this service for you. Please feel free to contact either of the undersigned if you have questions or require additional information. Sincerely, Terracon Reviewed by: iPtettail Zu.Q. ! V :• ecetz Patrick acobs Jack L. Spriggs, P.G. Project Manager Senior Principal Enclosure Delivering Success for Clients and Employees Since 1965 More Than 95 Offices Nationwide Surface Water Assessment-Thweatt Park Terracon Project No. 94097105A March 17, 2009 TABLE OF CONTENTS Page No. 1.0 INTRODUCTION 1 2.0 METHODOLOGY 1 3.0 LIMITATIONS 1 4.0 SITE LOCATION AND PROJECT DESCRIPTION 1 5.0 INVESTIGATION AND FINDINGS 2 5.1 On-Site Investigation 2 5.2 On-site Interview 2 5.3 Evaluation of Surface Water Quality 2 5.3.1 Sampling Results 2 5.3.2 Pesticides and Herbicides 4 6.0 CONCLUSIONS AND RECOMMENDATIONS 4 LIST OF TABLES Table 1: Sample Results 3 APPENDICES APPENDIX A Figure 1 —Site Plan APPENDIX B Analytical Results APPENDIX C Site Photographs ii SURFACE WATER ASSESSMENT THWEATT PARK SOUTH COPPELL ROAD AND SANDY LAKE ROAD Terracon Project No. 94097105A March 13, 2009 1.0 INTRODUCTION This report documents Terracon Consultants, Inc. (Terracon) Surface Water Assessment (Assessment)of the pond located at Thweatt Park west of South Coppell Road and Sandy Lake Road in Coppell,Texas. Terracon was contacted by the City of Coppell(client)to investigate a recent fish kill in the pond located at Thweatt Park in Coppell, Texas. In the days prior, numerous fish had been discovered along the banks of the pond. The Assessment is intended to provide information that will assist the client in evaluating the cause of the fish kill and give possible actions to prevent an occurrence in the future. Reference Section 4.0, below, and Appendix A, Figure 1 for additional project and location information. 2.0 METHODOLOGY The methodology employed in conducting the Assessment follows: 1. Surface water sampling of the pond at Thweatt Park. 2. Interviews with city officials and area residents. 3. Formulate an opinion regarding the existence of contaminants in the pond at Thweatt Park and possible remediation activities. 3.0 LIMITATIONS The environmental services documented in this Assessment report were performed in accordance with current, generally accepted professional practices in the local area. No other warranty is expressed or implied. The on-site investigation performed for this Assessment was conducted within a 1-day period. No assessment can wholly eliminate uncertainty regarding the potential for use of the site by listed species. This Assessment considers only regulatory parameters in effect at the time of the Assessment and proposed project parameters as described below. The stated and inherent limitations of any such assessment must be considered when relying on this report to formulate opinions related to potential, project-related regulatory requirements. This Assessment report has been prepared for the exclusive use and reliance of the client. Reliance by any other party is prohibited without the written authorization of the client and Terracon. 4.0 SITE LOCATION AND PROJECT DESCRIPTION Thweatt Park is located west of the intersection of South Coppell Road and Sandy Lake Road in • Surface Water Assessment lFerracon Project No. 94097105A March 17, 2009 Coppell, Dallas County, Texas. Thweatt Park consists of one embankment pond approximately 13,178 square feet in size. The pond is surrounded by a levee with an emergency spillway located on the west side of the pond. A tributary extends east of the pond towards the intersection of South Coppell Road and Sandy Lake Road. The pond water appears to be supplied by stormwater runoff from South Coppell Road and Sandy Lake Road; however,at the time of investigation construction was occurring on South Coppell Road and erosion control structures were present in the tributary preventing little to no runoff from entering the pond. A site plan is provided as Figure 1 in Appendix A. 5.0 INVESTIGATION AND FINDINGS 5.1 On-Site Investigation A walking reconnaissance of the site and surface water sampling of the pond were performed on February 27, 2009. No dead fish were observed along the banks of pond; however, live fish, turtles, and ducks were observed in the water. Surface water samples were collected approximately 0.5 feet below the water surface and approximately 2 feet above the pond bottom. At the time of investigation readings for temperature, conductivity, pH,were collected with a YSI flow through cell and surface water samples were collected and analyzed for total suspended solids (TSS), 5 day biological oxygen demand (BOD), total nitrogen, total Kjeldahl nitrogen (TKN), Nitrate/Nitrite present, total phosphorus, pesticides, herbicides, and turbidity. Findings are noted in Table 1, below and analytical results are located in Appendix B. Photographs are provided in Appendix C. 5.2 On-site Interview During the site investigation, Mr. Jeff Wilson, a nearby resident was interviewed by Terracon. Mr. Wilson stated that approximately two weeks prior, individuals from the city had placed a yellow, pelletized chemical throughout the park. Within the next couple of days the area received a light rain and the yellow pellets had accumulated along the shoreline of the pond. Subsequently, numerous dead fish were found along the bank of the pond. Mr. Wilson estimated that over 100 fish had been found since the incident began and the species discovered were bluegill perch, catfish, and turtles. Mr. Wilson stated that fish had not been discovered for a few days. 5.3 Evaluation of Surface Water Quality 5.3.1 Sampling Results Results from the surface water sample are indicted in the following table. The total Phosphorus level and turbidity of the pond are at a level of concern. All other tested criteria fall into an acceptable range for surface water quality. 2 Surface Water Assessment 1Ierracon Project No. 94097105A March 17, 2009 Table 1:Surface Sample Laboratory Results Name Range or value Temperature (°C) 16.36 — 16.54 Dissolved Oxygen 90 (% Saturation) Electroconductivity 236 -260 (pS/cm) pH 6.56—6.96 TSS 160 mg/L BOD, 5 day Below Detectable Limits TKN 2.6 mg/L Total Nitrogen 2.6 mg/L NO2 / NO3 Below Detectable Limits Total Phosphorus 0.17 mg/L Turbidity 212 NTU The critical phosphorus concentration at which eutrophication and accelerated algal growth begins is 0.01 to 0.02 mg/L. The laboratory results for the surface water sample indicates total Phosphorus at 0.17 mg/L which indicates the pond is eutrophic and subject to significant algae blooms; however significant algae blooms were not observed during the site investigation. Turbidity levels above 100 NTU indicate that a waterbody has a high amount of sediment. The turbidity reading of the pond was 212 NTU, which indicates that the pond contains a high amount of sediment. High amounts of sediment in a waterbody can be harmful to aquatic life due to its interference with sunlight penetration. If suspended particles block out light, photosynthesis, and the production of oxygen for fish and aquatic life, will be reduced. If light levels get too low, photosynthesis may stop altogether and algae will die. It's important to realize conditions that reduce photosynthesis in plants result in lower oxygen concentrations and large carbon dioxide concentrations. Respiration is the opposite of photosynthesis. Large amounts of suspended matter may also clog the gills of fish and shellfish and kill them directly and suspended particles may provide a place for harmful microorganisms to lodge. 3 Surface Water Assessment lierracon Project No. 94097105A March 17, 2009 5.3.2 Pesticides and Herbicides In addition to the tests listed in Section 5.3.1, water samples were also analyzed for the presence of pesticides or herbicides. Sample results did not indicate the presence of pesticides over the detectable limits of the laboratory equipment; however, one herbicide, Dicamba, was found at a concentration of 0.0011 mg/L. Dicamba, also known as 3,6-dichloro-2- methoxybenzoic acid is commonly used as a broadleaf weed herbicide. According to the pesticide label for Dicamba, Dicamba is of low toxicity to fish(2,5).The lethal concentration fifty, or LC50, is that concentration of a chemical in air or water that kills half of the experimental animals exposed to it fora set time period.The 96-hour LC50 for technical Dicamba in bluegill is 135.3 mg/I.The 48-hour LC50 for Dicamba in bluegill is 40 mg/I. In water,microbial degradation is the main route of Dicamba disappearance. Photolysis may also occur. Aquatic hydrolysis, volatilization, adsorption to sediments,and bio-concentration are not expected to be significant. 6.0 CONCLUSIONS AND RECOMMENDATIONS Based on information gathered during site interviews and the presence of the herbicide Dicamba, it is Terracon's opinion that an applied chemical herbicide infiltrated the pond and caused the fish kill. At the time of the investigation, fish, reptiles, and birds were observed in the pond and the Dicamba concentration in the water was well below the level toxic to warm water fish, such as, bluegill. Based on site observations and analytical results, it is Terracon's opinion that the chemicals added to the water have been diluted to a point that is no longer detrimental to aquatic life in the pond. In order to minimize the potential for fish kills in the future, Terracon recommends the use of a buffer zone when applying pesticides, herbicides, or fertilizer in the vicinity of the pond. Typically, a buffer zone of 50 feet is sufficient in limiting the transport of pesticides,fertilizer,and sediment into a waterbody. Other best management practices to consider are the utilization of filter strips around the pond and the incorporation of pesticides, herbicides, or fertilizer into the soil at the time of application. 4 THWEATT PARK S" �O LEVEE x'11 N .13O N \' N;, /s -o� F� <0 FOUNTAIN FILTER \' LEVEE I I o o \ J I \" cp I x\ Q J in O Q m O Q Z rn R E S I D E N T I A L 0 in o 0 J — r` rn J N W ai 0 0 0 U 2 N EL i I —1 rJ 0 0 — (n 0 co 0 30 60 FEET aTHIS DRAWING SHOULD rli NOT BE USED SEPARATELY APPROX MATE SCALE FROM ORIGINAL REPORT. 0 o Project Mnpr. Project No.94097105A FIG. No. PJ 1 f�rr�con SITE PLAN Drawn By. Scale: CDD AS SHOWN Checked Br. Dote: Consulting Engineers and Scientists THWEATT PARK ^ Approved By. _ 3113/09 8901 CARPENTER FREEWAY DALLAS,TEXAS 75217 SOUTH COPPELL ROAD AND SANDY LAKE ROAD 2 PH.(214)630-1010 FAX.(214)630-7070 COPPELL,DALLAS COUNTY,TEXAS 12065 Lebanon Rd. Mt. Juliet, TN 37122 101 (615) 758-5858 ENVIRONMENTAL 1-800-767-5859 SCIENCE C O R P Fax (615) 758-5859 Tax I.D. 62-0814289 Est. 1970 Chris Sandwell Terracon - Dallas, TX 8901 Carpenter Freeway, Suite 100 Dallas, TX 75247 Report Summary Friday March 06, 2009 Report Number: L390548 Samples Received: 02/28/09 Client Project: Description: The analytical results in this report are based upo. informa-ion su.plie. by you, the client, and are for your exclusive use Ai ou ave a t questions regarding this data package, please do o e to Entire Report Reviewed By: .r -' n. :eas ey, 'ep sen a ive Laboratory Certification Numbers A2LA - 1461-01, AIHA - 100789, AL - 40660, CA - I-2327, CT - PH-0197, FL - E87487 GA - 923, IN - C-TN-01, KY - 90010, KYUST - 0016, NC - ENV375,DW21704, ND - R-140 NJ - TN002, SC - 84004, TN - 2006, VA - 00109, WV - 233 AZ - 0612, MN - 047-999-395, NY - 11742, WI - 998093910 This report may not be reproduced, except in full, without written approval from Environmental Science Corp. Where applicable, sampling conducted by ESC is performed per guidance provided in laboratory standard operating procedures: 060302, 060303, and 060304. 1 Samples Reported: 03/06/09 15:14 Printed: 03/06/09 15:15 Page 1 of 4 12065 Lebanon Rd. 410 Mt. Juliet, TN 37122 ENVIRONMENTAL 1610) 758-5859 1-800-767-5859 Fax (615) 758-5859 SCIENCE CORP . Tax I.D. 62-0814289 Est. 1970 REPORT OF ANALYSIS Chris Sandwell March 06, 2009 Terracon - Dallas, TX 8901 Carpenter Freeway, Suite 100 Dallas, TX 75247 ESC Sample # : L390548-01 Date Received February 28, 2009 Description Site ID . Sample ID SURF-1 Project # : Collected By Chris Sandwell Collection Date : 02/27/09 15:19 Parameter Result Det. Limit Units Method Date Dil. BOD BDL 5.0 mg/1 SM5210B 02/28/09 1 Total Nitrogen 2.6 0.10 mg/1 Calc. 03/04/09 1 Ammonia Nitrogen 0.41 0.10 mg/1 350.1 03/06/09 1 Nitrate-Nitrite BDL 0.10 mg/1 353.2 03/03/09 1 Phosphorus,Total 0.17 0.10 mg/1 365.1 03/05/09 1 Kjeldahl Nitrogen, TKN 2.6 0.10 mg/1 351.2 03/04/09 1 Suspended Solids 160 1.0 mg/1 2540D 03/04/09 1 BDL - Below Detection Limit Det. Limit - Practical Quantitation Limit(PQL) Note: The reported analytical results relate only to the sample submitted. This report shall not be reproduced, except in full, without the written approval from ESC. Reported: 03/06/09 15:14 Printed: 03/06/09 15:15 Page 2 of 4 Attachment A List of Analytes with QC Qualifiers Sample Work Sample Run Number Group Type Analyte ID Qualifier L390548-01 WG909761 SAMP BOD R659165 J4 Page 3 of 4 Attachment B Explanation of QC Qualifier Codes Qualifier Meaning J4 The associated batch QC was outside the established quality control range for accuracy. Qualifier Report Information ESC utilizes sample and result qualifiers as set forth by the EPA Contract Laboratory Program and as required by most certifying bodies including NELAC. In addition to the EPA qualifiers adopted by ESC, we have implemented ESC qualifiers to provide more information pertaining to our analytical results. Each qualifier is designated in the qualifier explanation as either EPA or ESC. Data qualifiers are intended to provide the ESC client with more detailed information concerning the potential bias of reported data. Because of the wide range of constituents and variety of matrices incorporated by most EPA methods,it is common for some compounds to fall outside of established ranges. These exceptions are evaluated and all reported data is valid and useable unless qualified as 'R' (Rejected) . Definitions Accuracy - The relationship of the observed value of a known sample to the true value of a known sample. Represented by percent recovery and relevant to samples such as: control samples, matrix spike recoveries, surrogate recoveries, etc. Precision - The agreement between a set of samples or between duplicate samples. Relates to how close together the results are and is represented by Relative Percent Differrence. Surrogate - Organic compounds that are similar in chemical composition, extraction, and chromotography to analytes of interest. The surrogates are used to determine the probable response of the group of analytes that are chem- ically related to the surrogate compound. Surrogates are added to the sample and carried through all stages of preparation and analyses. TIC - Tentatively Identified Compound: Compounds detected in samples that are not target compounds, internal standards, system monitoring compounds, or surrogates. Page 4 of 4 Summary of Remarks For Samples Printed 03/06/09 at 15:15:20 TSR Signing Reports: 134 R5 - Desired TAT Sample: L390548-01 Account: TERRADTX Received: 02/28/09 13:25 Due Date: 03/06/09 00:00 RPT Date: 03/06/09 15:14 Environmental Science Corporation Mount Juliet, TN 'or: Terracon - Dallas, T , * r,a ' m t 51 112 iLO L390620 'L � oT " ' } E t VaA . s ,C al � !p, r 5 � u.�r Lit .� , -. t 9r+ a g r "'C " 4r t ` tP lost sP Z Tit a O t- yea ii r "`?, M �� aee k ,rc i X ' `''nipw 40. v 1 .1 r3 55`' n a u r�t� I a �' + F 1 E` ^� a �'�a c�� ..,.,.. t a ''41 `. w r y. (615) 758-5858 1-800-767-5859 Fax (615) 758-5859 EST. 1970 1 of 19 Appendix A Laboratory Data Package Cover Page This data package consists of: This signature page,the laboratory review checklist,and the following reportable data: R1 Field chain-of-custody documentation; R2 Sample identification cross-reference; R3 Test reports(analytical data sheets)for each environmental sample that includes: a) Items consistent with NELAC 5.13 or ISO/IEC 17025 Section 5.10 b) dilution factors, c) preparation methods, d) cleanup methods,and e) if required for the project,tentatively identified compounds(TICs). R4 Surrogate recovery data including: a) Calculated recovery(%R),and b) The laboratory's surrogate QC limits. R5 Test reports/summary forms for blank samples; R6 Test reports/summary forms for laboratory control samples(LCSs)including: a) LCS spiking amounts, b) Calculated%R for each analyte,and c) The laboratory's LCS QC limits. R7 Test reports for project matrix spike/matrix spike duplicates(MS/MSDs)including: a) Samples associated with the MS/MSD clearly identified, b) MS/MSD spiking amounts, c) Concentration of each MS/MSD analyte measured in the parent and spiked samples, d) Calculated%Rs and relative percent differences(RPDs),and e) The laboratory's MS/MSD QC limits R8 Laboratory analytical duplicate(if applicable)recovery and precision: a) the amount of analyte measured in the duplicate, b) the calculated RPD, and c) the laboratory's QC limits for analytical duplicates. R9 List of method quantitation limits(MQLs)for each analyte for each method and matrix; R10 Other problems or anomalies. The Exception Report for every"No"or"Not Reviewed(NR)"item in laboratory review checklist. Release Statement: I am responsible for the release of this laboratory data package. This data package has been reviewed by the laboratory and is complete and technically compliant with the requirements of the methods used,except where noted by the laboratory in the attached exception reports. By my signature below, I affirm to the best of my knowledge,all problems/anomalies,observed by the laboratory as having the potential to affect the quality of the data,have been identified by the laboratory in the Laboratory Review Checklist,and no information or data have been knowingly withheld that would affect the quality of the data. Check,if applicable: [] This laboratory is an in-house laboratory controlled by the person responding to rule. The official signing the cover page of the rule-required report(for example,the APAR)in which these data are used is responsible for releasing this data package and is by signature affirming the above release statement is true. William Mock Operations Manager Environmental Science Corp. RG-366/TRRP-13 December 2002 2 oA 9 Appendix A (cont'd): Laboratory Review Checklist: Reportable Data Laboratory Name:Environmental Science LRC Date:03/12/09 Project Name: City of Copper Thweatt Park Laboratory Job Number:L390620-01 Reviewer Name:ESC Representative Prep Batch Number(s):WG410111 SV8081 #1 A' Description Yes No NA' NR4 ER#5 Chain-of-custody(C-O-C) RI OI Did samples meet the laboratory's standard conditions of sample acceptability upon receipt? ✓ Were all departures from standard conditions described in an exception report? R2 01 Sample and quality control(QC)identification Are all field sample ID numbers cross-referenced to the laboratory ID numbers? ✓ Are all laboratory ID numbers cross-referenced to the corresponding QC data? R3 01 Test reports Were all samples prepared and analyzed within holding times? ✓ Other than those results<MQL,were all other raw values bracketed by calibration standards? Were calculations checked by a peer or supervisor? ✓ Were all analyte identifications checked by a peer or supervisor? ✓ Were sample quantitation limits reported for all analytes not detected? Were all results for soil and sediment samples reported on a dry weight basis? ✓ Were%moisture(or solids)reported for all soil and sediment samples? ✓ If required for the project,TICs reported? ✓ R4 0 Surrogate recovery data Were surrogates added prior to extraction? Were surrogate percent recoveries in all samples within the laboratory QC limits? R5 OI Test reports/summary forms for blank samples Were appropriate type(s)of blanks analyzed? Were blanks analyzed at the appropriate frequency? Were method blanks taken through the entire analytical process,including preparation and,if applicable,cleanup procedures? Were blank concentrations<MQL? ✓ R6 01 Laboratory control samples(LCS): Were all COCs included in the LCS? ✓ Was each LCS taken through the entire analytical procedure,including prep and cleanup steps? Were LCSs analyzed at the required frequency? ✓ Were LCS(and LCSD,if applicable)%Rs within the laboratory QC limits? ✓ Does the detectability data document the laboratory's capability to detect the COCs at the MDL used to calculate the SQLs? Was the LCSD RPD within QC limits? 1 R7 OI Matrix spike(MS)and matrix spike duplicate(MSD)data Were the project/method specified analytes included in the MS and MSD? Were MS/MSD analyzed at the appropriate frequency? ✓ Were MS(and MSD,if applicable)%Rs within the laboratory QC limits? ✓ Were MS/MSD RPDs within laboratory QC limits? ✓ R8 01 Analytical duplicate data Were appropriate analytical duplicates analyzed for each matrix? ✓ Were analytical duplicates analyzed at the appropriate frequency? I/ Were RPDs or relative standard deviations within the laboratory QC limits? R9 OI Method quantitation limits(MQLs): Are the MQLs for each method analyte included in the laboratory data package? Do the MQLs correspond to the concentration of the lowest non-zero calibration standard? ✓ Are unadjusted MQLs included in the laboratory data package? ✓ RIO 01 Other problems/anomalies Are all known problems/anomalies/special conditions noted in this LRC and ER? ✓ Were all necessary corrective actions performed for the reported data? ✓ Was applicable and available technology used to lower the SQL minimize the matrix interference affects on the sample results? I. Items identified by the letter"R"must be included in the laboratory data package submitted in the TRRP-required report(s). Items identified by the letter"S"should be retained and made available upon request for the appropriate retention period. 2. =organic analyses; I=inorganic analyses(and general chemistry,when applicable); 3. NA=Not applicable; 4. NR=Not reviewed; 5. ER#=Exception Report identification number(an Exception Report should be completed for an item if"NR"or"No"is checked). RG-366/TRRP-13 December 2002 3 of AD Appendix A (cont'd): Laboratory Review Checklist: Exception Reports Laboratory Name:Environmental Science Corn. LRC Date:3/12/2009 Project Name: City of Copper Thweatt Park Laboratory Job Number: L390620 Reviewer Name:ESC Representative Prep Batch Numbers:WG410111 SV8081 Sample(s)SURF-2 were analyzed for Chlorinated Pesticides by ER#: Description The relative percent differences exceeded laboratory limits for Hexachlorobenzene 4 of 19 Appendix A (cont'd): Laboratory Review Checklist: Reportable Data Laboratory Name:Environmental Science LRC Date:03/12/09 Project Name:City of Copper Thweatt Park Laboratory Job Number:L390620-01 Reviewer Name:ESC Representative Prep Batch Number(s):WG410610 SV8151 #' A' Description Yes No NA' NR° ER#5 Chain-of-custody(C-O-C) RI OI Did samples meet the laboratory's standard conditions of sample acceptability upon receipt? ✓ Were all departures from standard conditions described in an exception report? R2 01 Sample and quality control(QC)identification Are all field sample ID numbers cross-referenced to the laboratory ID numbers? ✓ Are all laboratory ID numbers cross-referenced to the corresponding QC data? ✓ R3 01 Test reports Were all samples prepared and analyzed within holding times? ✓ Other than those results<MQL,were all other raw values bracketed by calibration standards? Were calculations checked by a peer or supervisor? ✓ Were all analyte identifications checked by a peer or supervisor? ✓ Were sample quantitation limits reported for all analytes not detected? ✓ Were all results for soil and sediment samples reported on a dry weight basis? ✓ Were%moisture(or solids)reported for all soil and sediment samples? ✓ If required for the project,TICs reported? ✓ R4 0 Surrogate recovery data Were surrogates added prior to extraction? ✓ Were surrogate percent recoveries in all samples within the laboratory QC limits? ✓ R5 01 Test reports/summary forms for blank samples Were appropriate type(s)of blanks analyzed? ✓ Were blanks analyzed at the appropriate frequency? ✓ Were method blanks taken through the entire analytical process,including preparation and,if applicable,cleanup procedures? Were blank concentrations<MQL? ✓ R6 OI Laboratory control samples(LCS): Were all COCs included in the LCS? ✓ Was each LCS taken through the entire analytical procedure,including prep and cleanup steps? ./ Were LCSs analyzed at the required frequency? ✓ Were LCS(and LCSD,if applicable)%Rs within the laboratory QC limits? ✓ Does the detectability data document the laboratory's capability to detect the COCs at the MDL used ✓ to calculate the SQLs? Was the LCSD RPD within QC limits? ✓ R7 01 Matrix spike(MS)and matrix spike duplicate(MSD)data Were the project/method specified analytes included in the MS and MSD? ✓ Were MS/MSD analyzed at the appropriate frequency? ✓ Were MS(and MSD,if applicable)%Rs within the laboratory QC limits? ✓ Were MS/MSD RPDs within laboratory QC limits? ✓ R8 OI Analytical duplicate data Were appropriate analytical duplicates analyzed for each matrix? ✓ Were analytical duplicates analyzed at the appropriate frequency? ✓ Were RPDs or relative standard deviations within the laboratory QC limits? ✓ R9 01 Method quantitation limits(MQLs): Are the MQLs for each method analyte included in the laboratory data package? ✓ Do the MQLs correspond to the concentration of the lowest non-zero calibration standard? ✓ Are unadjusted MQLs included in the laboratory data package? ✓ RIO 01 Other problems/anomalies Are all known problems/anomalies/special conditions noted in this LRC and ER? ✓ Were all necessary corrective actions performed for the reported data? ✓ Was applicable and available technology used to lower the SQL minimize the matrix interference affects on the sample results? 1. Items identified by the letter"R"must be included in the laboratory data package submitted in the TRRP-required report(s). Items identified by the letter"S"should be retained and made available upon request for the appropriate retention period. 2. =organic analyses; I=inorganic analyses(and general chemistry,when applicable); 3. NA=Not applicable; 4. NR=Not reviewed; 5. ER#=Exception Report identification number(an Exception Report should be completed for an item if"NR"or"No"is checked). RG-366/TRRP-13 December 2002 5 of A9 12065 Lebanon Rd. Mt. Juliet, TN 37122 (615) 758-5858 4110 ENVIRONMENTAL 1-800-767-5859 SCIENCE CORP . Fax (615) I5e-5859 Tax I.D. 62-0814289 Est. 1970 Chris Sandwell Terracon - Dallas, TX 8901 Carpenter Freeway, Suite 100 Dallas, TX 75247 Report Summary Thursday March 12, 2009 Report Number: L390620 • Samples Received: 03/03/09 Client Project: 94097105A Description: City of Copper Thweatt Park The analytical results in this report are based upor informa,ion su•plie. by you, the client, and are for your exclusive use Ai ou ave of questions regarding this data package, please do oita e to r 1. i Entire Report Reviewed By: La bora tory Certification Numbers r, n. :eas ey, •ep sen a ive A2LA - 1461-01, AIHA - 100789, AL - 40660, CA - I-2327, CT - PH-0197, FL - E87487 GA - 923, IN - C-TN-01, KY - 90010, KYUST - 0016', NC - ENV375,DW21704, ND - R-140 NJ - TN002, SC - 84004, TN - 2006, VA - 00109, WV - 233 AZ - 0612, MN - 047-999-395, NY - 11742, WI - 998093910 Accreditation is only applicable to the test methods specified on each scope of accreditation held by ESC Lab Sciences. This report may not be reproduced, except in full, without written approval from Environmental Science Corp. Where applicable, sampling conducted by ESC is performed per guidance provided in laboratory standard operating procedures: 060302, 060303, and 060304. 1 Samples Reported: 03/12/09 14:45 Printed: 03/12/09 14:46 Page 1 of 4 6 of 19 12065 Lebanon Rd. Mt. Juliet, TN 37122 4110 ( 15) 75 -5858 ENVIRONMENTAL 16800-768-5859 Fax (615) 758-5859 SCIENCE CORP . Tax I.D. 62-0814289 Est. 1970 REPORT OF ANALYSIS Chris Sandwell March 12, 2009 Terracon - Dallas, TX 8901 Carpenter Freeway, Suite 100 Dallas, TX 75247 ESC Sample # : L390620-01 Date Received March 03, 2009 Description City of Copper Thweatt Park Site ID . Sample ID SURF-2 Project # : 94097105A Collected By Patrick Jacobs Collection Date : 03/02/09 13:19 Parameter Result MDL RDL Units Q Method Date Dil. Pesticides Aldrin U .000025 .00050 mg/1 8081A 03/04/09 1 Alpha BHC U .000025 .00050 mg/1 8081A 03/04/09 1 Beta BHC U .000023 .00050 mg/1 8081A 03/04/09 1 Delta BHC U .000040 .00050 mg/1 8081A 03/04/09 1 Gamma BHC U .000033 .00050 mg/1 8081A 03/04/09 1 Chlordane U .00014 0.0050 mg/1 8081A 03/04/09 1 9,9-DDD U .000026 .00050 mg/1 8081A 03/04/09 1 4,4-DDE U .000025 .00050 mg/1 8081A 03/04/09 1 4,4-DDT U .000043 .00050 mg/1 8081A 03/04/09 1 Dieldrin U .000026 .00050 mg/1 8081A 03/04/09 1 Endosulfan I U .000016 .00050 mg/1 8081A 03/04/09 1 Endosulfan II U .000015 .00050 mg/1 8081A 03/04/09 1 Endosulfan sulfate U .000027 .00050 mg/1 8081A 03/04/09 1 Endrin U .000025 .00050 mg/1 8081A 03/04/09 1 Endrin aldehyde U .000024 .00050 mg/1 8081A 03/04/09 1 Endrin ketone U .000029 .00050 mg/1 8081A 03/04/09 1 Hexachlorobenzene U .000021 .00050 mg/1 J3 8081A 03/04/09 1 Heptachlor U .000031 .00050 mg/1 8081A 03/04/09 1 Heptachlor epoxide U .000027 .00050 mg/1 8081A 03/04/09 1 Methoxychior U .000035 .00050 mg/1 8081A 03/04/09 1 Toxaphene U .00064 0.010 mg/1 8081A 03/04/09 1 Pesticides Surrogates Decachlorobiphenyl 41.1 % Rec. 8081A 03/04/09 1 Tetrachloro-m-xylene 65.5 % Rec. 8081A 03/04/09 1 Herbicides 2,9-0 U 0.00014 0.0020 mg/1 8151 03/11/09 1 Dalapon U 0.000090 0.20 mg/1 8151 03/11/09 1 2,4-DO U 0.00017 0.0020 mg/1 8151 03/11/09 1 Dicamba 0.0011 0.00014 0.0020 mg/1 J 8151 03/11/09 1 Dichloroprop U 0.00014 0.0020 mg/1 8151 03/11/09 1 Dinoseb U 0.00011 0.0020 mg/1 8151 03/11/09 1 MCPA U 0.020 0.10 mg/1 8151 03/11/09 1 MCPP U 0.015 0.10 mg/1 8151 03/11/09 1 2,4,5-T U 0.00018 0.0020 mg/1 8151 03/11/09 1 2,9,5-TP (Silvex) U 0.00022 0.0020 mg/1 8151 03/11/09 1 Surrogate Recovery 2,4-Dichlorophenyl Acetic Acid 68.8 % Rec. 8151 03/11/09 1 U = ND (Not Detected) MDL = Minimum Detection Limit = LOD RDL = Reported Detection Limit = LOQ = PQL = EQL Note: The reported analytical results relate only to the sample submitted. This report shall not be reproduced, except in full, without the written approval from ESC. Reported: 03/12/09 14:45 Printed: 03/12/09 14:46 Page 2 of 4 7of19 Attachment A List of Analytes with QC Qualifiers Sample Work Sample Run Number Group Type Analyte ID Qualifier L390620-01 WG910111 SAMP Hexachlorobenzene R658506 J3 WG910610 SAMP Dicamba R666526 J Page 3 of 9 8 of 19 Summary of Remarks For Samples Printed 03/12/09 at 14:46:09 TSR Signing Reports: 134 R5 - Desired TAT Sample: L390620-01 Account: TERRADTX Received: 03/03/09 07:45 Due Date: 03/12/09 00:00 RPT Date: 03/12/09 14:45 10 of 19 Environmental Science Corporation Quality Control Summary Terracon - Dallas, TX Test:Chlorinated Pesticides by Method 8081A L390620 Matrix:Water- mg/L Project:City of Copper Thweatt Park Project No:94097105A Login No:L390620 Sample Number:L390620-01 Sample Date:3/2/2009 Extraction Date:3/3/2009 Analysis Date:3/4/2009 Instrument ID:SVGC18 Analyst:377 Analytic Batch:WG410111 EPA ID: TN00003 Method Blank Analyte CAS PQL MDL 4,4-DDD 72-54-8 <0.000500 <0.000165 4,4-DDE 72-55-9 <0.000500 <0.000165 4,4-DDT 50-29-3 <0.000500 <0.000165 Aldrin 309-00-2 <0.000500 <0.000165 Alpha BHC 319-84-6 <0.000500 <0.000165 Beta BHC 319-85-7 <0.000500 <0.000165 Chlordane 57-74-9 <0.00500 <0.00165 Delta BHC 319-86-8 <0.000500 <0.000165 Dieldrin 60-57-1 <0.000500 <0.000165 Endosulfan I 959-98-8 <0.000500 <0.000165 Endosulfan II 33213-65-9 <0.000500 <0.000165 Endosulfan sulfate 1031-07-8 <0.000500 <0.000165 Endrin 72-20-8 <0.000500 <0.000165 Endrin aldehyde 7421-93-4 <0.000500 <0.000165 Endrin ketone 53494-70-5 <0.000500 <0.000165 Gamma BHC 58-89-9 <0.000500 <0.000165 Heptachlor 76-44-8 <0.000500 <0.000165 Heptachlor epoxide 1024-57-3 <0.000500 <0.000165 Hexachlorobenzene 118-74-1 <0.000500 <0.000165 Methoxychlor 72-43-5 <0.000500 <0.000165 Toxaphene 8001-35-2 <0.0100 <0.00330 Quality Control Summary for client sample(s)SURF-2 11 of 19 Environmental Science Corporation Quality Control Summary Terracon - Dallas, TX Test:Chlorinated Pesticides by Method 8081A L390620 Matrix:Water - mg/L Project:City of Copper Thweatt Park Project No:94097105A Login No:L390620 Sample Number:L390620-01 Sample Date:3/2/2009 Extraction Date:3/3/2009 Analysis Date:3/4/2009 Instrument ID:SVGC 18 Analyst:377 Analytic Batch:WG410111 EPA ID: TN00003 Laboratory Control Sample (LCS) True Recovery Control Analyte Value Found % Limits Qualifiers 4,4-DDD 0.000200 0.000200 100 37- 142 4,4-DDE 0.000200 0.000203 101 33- 124 4,4-DDT 0.000200 0.000233 116 32- 143 Aldrin 0.000200 0.000195 97.3 25- 115 Alpha BHC 0.000200 0.000190 95.2 38- 119 Beta BHC 0.000200 0.000196 98.1 42- 126 Delta BHC 0.000200 0.000174 86.9 24- 141 Dieldrin 0.000200 0.000193 96.3 37- 130 Endosulfan I 0.000200 0.000193 96.6 37- 125 Endosulfan II 0.000200 0.000224 112 38- 131 Endosulfan sulfate 0.000200 0.000180 90.1 38- 131 Endrin 0.000200 0.000185 92.4 37- 126 Endrin aldehyde 0.000200 0.000159 79.6 24- 154 Endrin ketone 0.000200 0.000184 92.2 37- 139 Gamma BHC 0.000200 0.000187 93.3 35- 114 Heptachlor 0.000200 0.000191 95.3 21 - 123 Heptachlor epoxide 0.000200 0.000185 92.5 38- 121 Hexachlorobenzene 0.000200 0.000175 87.5 28- 115 Methoxychlor 0.000200 0.000202 101 55- 150 Quality Control Summary for client sample(s)SURF-2 12 of 19 Environmental Science Corporation Quality Control Summary Terracon - Dallas, TX Test:Chlorinated Pesticides by Method 8081A L390620 Matrix.:Water- mg/L Project:City of Copper Thweatt Park Project No:94097105A Login No:L390620 Sample Number:L390620-01 Sample Date:3/2/2009 Extraction Date:3/3/2009 Analysis Date:3/4/2009 Instrument ID:S VGC 18 Analyst:377 Analytic Batch:WG410111 EPA ID: TN00003 Laboratory Control Sample Duplicate (LCSD) True Recovery Control Analyte Value Found % Limits Qualifiers 4,4-DDD 0.000200 0.000179 89.7 37- 142 4,4-DDE 0.000200 0.000167 83.6 33- 124 4,4-DDT 0.000200 0.000196 97.9 32- 143 Aldrin 0.000200 0.000156 78.0 25- 115 Alpha BHC 0.000200 0.000154 76.8 38- 119 Beta BHC 0.000200 0.000178 88.8 42- 126 Delta BHC 0.000200 0.000160 79.8 24- 141 Dieldrin 0.000200 0.000181 90.5 37- 130 Endosulfan I 0.000200 0.000182 90.9 37- 125 Endosulfan II 0.000200 0.000213 107 38- 131 Endosulfan sulfate 0.000200 0.000175 87.3 38- 131 Endrin 0.000200 0.000174 87.2 37- 126 Endrin aldehyde 0.000200 0.000144 71.9 24- 154 Endrin ketone 0.000200 0.000173 86.4 37- 139 Gamma BHC 0.000200 0.000156 78.1 35- 114 Heptachlor 0.000200 0.000156 77.9 21 - 123 Heptachlor epoxide 0.000200 0.000172 86.1 38- 121 Hexachlorobenzene 0.000200 0.000124 62.2 28- 115 Methoxychlor 0.000200 0.000184 92.2 55- 150 Quality Control Summary for client sample(s)SURF-2 13 of 19 W Environmental Science Corporation Quality Control Summary Terracon - Dallas, TX Test:Chlorinated Pesticides by Method 8081A L390620 Matrix:Water- mg/L Project:City of Copper Thweatt Park Project No:94097105A Login No:L390620 Sample Number:L390620-01 Sample Date:3/2/2009 Extraction Date:3/3/2009 Analysis Date:3/4/2009 Instrument ID:SVGC18 Analyst:377 Analytic Batch:WG410111 EPA ID: TN00003 Laboratory Control Sample/Laboratory Control Sample Duplicate Spike % % Control % Control Analyte LCS Rec LCSD Rec Limits Qualifier RPD Limits Qualifier 4,4-DDD 0.00020 0.00020 100 0.00017 89.7 37-142 11 39 4,4-DDE 0.00020 0.00020 101 0.00016 83.6 33-124 19 37 4,4-DDT 0.00020 0.00023 116 0.00019 97.9 32-143 17 42 Aldrin 0.00020 0.00019 97.3 0.00015 78.0 25-115 22 45 Alpha BHC 0.00020 0.00019 95.2 0.00015 76.8 38-119 21 30 Beta BHC 0.00020 0.00019 98.1 0.00017 88.8 42-126 9.9 31 Delta BHC 0.00020 0.00017 86.9 0.00016 79.8 24-141 8.6 41 Dieldrin 0.00020 0.00019 96.3 0.00018 90.5 37-130 6.2 36 Endosulfan I 0.00020 0.00019 96.6 0.00018 90.9 37-125 6.0 35 Endosulfan II 0.00020 0.00022 112 0.00021 107 38-131 5.0 36 Endosulfan sulfate 0.00020 0.00018 90.1 0.00017 87.3 38-131 3.2 37 Endrin 0.00020 0.00018 92.4 0.00017 87.2 37-126 5.7 37 Endrin aldehyde 0.00020 0.00015 79.6 0.00014 71.9 24-154 10 36 Endrin ketone 0.00020 0.00018 92.2 0.00017 86.4 37-139 6.5 36 Gamma BHC 0.00020 0.00018 93.3 0.00015 78.1 35-114 18 30 Heptachlor 0.00020 0.00019 95.3 0.00015 77.9 21-123 20 38 Heptachlor epoxide 0.00020 0.00018 92.5 0.00017 86.1 38-121 7.1 33 Hexachlorobenzene 0.00020 0.00017 87.5 0.00012 62.2 28-115 34 29 J3 Methoxychlor 0.00020 0.00020 101 0.00018 92.2 55-150 8.8 40 Quality Control Summary for client sample(s)SURF-2 14 of 19 Environmental Science Corporation Quality Control Summary Terracon - Dallas, TX Test:Herbicides by Method 8151 L390620 Matrix:Water- mg/L Project:City of Copper Thweatt Park Project No:94097105A Login No:L390620 Sample Number:L390620-01 Sample Date:3/2/2009 Extraction Date:3/5/2009 Analysis Date:3/10/2009 Instrument ID:SVGC I 1 Analyst:232 Analytic Batch:WG410610 EPA ID: TN00003 Method Blank Analyte CAS PQL MDL 2,4,5-T 93-76-5 <0.00200 <0.000660 2,4,5-TP(Silvex) 93-72-1 <0.00200 <0.000660 2,4-D 94-75-7 <0.00200 <0.000660 2,4-DB 94-82-6 <0.00200 <0.000660 Dalapon 75-99-0 <0.00200 <0.000660 Dicamba 1918-00-9 <0.00200 <0.000660 Dichloroprop 120-36-5 <0.00200 <0.000660 Dinoseb 88-85-7 <0.00200 <0.000660 MCPA 94-74-6 <0.100 <0.0330 MCPP 93-65-2 <0.100 <0.0330 Quality Control Summary for client sample(s)SURF-2 15 of 19 Environmental Science Corporation Quality Control Summary Terracon - Dallas, TX Test:Herbicides by Method 8151 L390620 Matrix:Water- mg/L Project:City of Copper Thweatt Park Project No:94097105A Login No:L390620 Sample Number:L390620-01 Sample Date:3/2/2009 Extraction Date:3/5/2009 Analysis Date:3/10/2009 Instrument ID:SVGC11 Analyst:232 Analytic Batch:WG410610 EPA ID: TN00003 Laboratory Control Sample (LCS) True Recovery Control Analyte Value Found % Limits Qualifiers 2,4,5-T 0.00500 0.00488 97.6 30- 136 2,4,5-TP(Silvex) 0.00500 0.00464 92.9 33- 134 2,4-D 0.00500 0.00447 89.3 24- 127 2,4-DB 0.00500 0.00527 105 22- 198 Dalapon 0.00500 0.00449 89.8 14- 121 Dicamba 0.00500 0.00411 82.2 31 - 135 Dichloroprop 0.00500 0.00433 86.6 30- 122 Dinoseb 0.00500 0.00410 82.1 28- 183 MCPA 0.500 0.429 85.8 32- 153 MCPP 0.500 0.466 93.2 42- 133 Quality Control Summary for client sample(s)SURF-2 16 of 19 Environmental Science Corporation Quality Control Summary Terracon - Dallas, TX Test:Herbicides by Method 8151 L390620 Matrix:Water- mg/L Project:City of Copper Thweatt Park Project No:94097105A Login No:L390620 Sample Number:L390620-01 Sample Date:3/2/2009 Extraction Date:3/5/2009 Analysis Date:3/10/2009 Instrument ID:SVGC11 Analyst:232 Analytic Batch:WG410610 EPA ID: TN00003 Laboratory Control Sample Duplicate(LCSD) True Recovery Control Analyte Value Found % Limits Qualifiers 2,4,5-T 0.00500 0.00521 104 30- 136 2,4,5-TP(Silvex) 0.00500 0.00515 103 33- 134 2,4-D 0.00500 0.00475 95.0 24- 127 2,4-DB 0.00500 0.00547 109 22- 198 Dalapon 0.00500 0.00437 87.4 14- 121 Dicamba 0.00500 0.00431 86.2 31 - 135 Dichloroprop 0.00500 0.00480 96.1 30- 122 Dinoseb 0.00500 0.00513 103 28- 183 MCPA 0.500 0.450 90.1 32- 153 MCPP 0.500 0.504 101 42- 133 Quality Control Summary for client sample(s)SURF-2 17 of 19 Environmental Science Corporation Quality Control Summary Terracon - Dallas, TX Test:Herbicides by Method 8151 L390620 Matrix:Water- mg/L Project:City of Copper Thweatt Park Project No:94097105A Login No:L390620 Sample Number:L390620-01 Sample Date:3/2/2009 Extraction Date:3/5/2009 Analysis Date:3/10/2009 Instrument ID:S V GC 11 Analyst:232 Analytic Batch:WG410610 EPA ID: TN00003 Laboratory Control Sample/Laboratory Control Sample Duplicate Spike % % Control % Control Analyte LCS Rec LCSD Rec Limits Qualifier RPD Limits Qualifier 2,4,5-T 0.00500 0.00488 97.6 0.00521 104 30-136 6.6 31 2,4,5-TP(Silvex) 0.00500 0.00464 92.9 0.00515 103 33-134 10 30 2,4-D 0.00500 0.00447 89.3 0.00475 95.0 24-127 6.2 27 2,4-DB 0.00500 0.00527 105 0.00547 109 22-198 3.7 33 Dalapon 0.00500 0.00449 89.8 0.00437 87.4 14-121 2.7 31 Dicamba 0.00500 0.00411 82.2 0.00431 86.2 31-135 4.8 25 Dichloroprop 0.00500 0.00433 86.6 0.00480 96.1 30-122 10 26 Dinoseb 0.00500 0.00410 82.1 0.00513 103 28-183 22 38 MCPA 0.500 0.429 85.8 0.450 90.1 32-153 4.9 31 MCPP 0.500 0.466 93.2 0.504 101 42-133 7.9 29 Quality Control Summary for client sample(s)SURF-2 18 of 19 in o O k N 1 V W g i >.. -g. " 11 1 lk sg ffli A 1 r F- 7) i fill ha Z E U \ oyyy1 y N p v oa 6-, : . i. 8-0 .---• A lib 61 Id •_, I I kl-t-A A A ail I ,..„ _ . j NT - -- le IV, Li -11 At lail / J 0- ma o 8 a y i -§ (- g g § 3 c do 0 0.. Q. ‘, I `� (,1 F- I- w` 1.1 r SI . ry e`- (%3 W le/ 1 1 1 i()) _ ---- I.i 0) a i a J Len m i a I1Lq l i City of Coppell-Thweatt Park Project No. 9407105A Date Photos Taken: February 27,2009 Terracon Photo#1 View of the pond at Thweatt Park Photo#2 View of the culvert and filled in Coppell, Texas facing southeast. tributary followed by the construction area of S. Coppell Rd. • fir fig, T. 7 Photo#3 View of the rock gabion basket Photo#4 View of the PVC pipes located in separating the pond from the the southeastern portion of the tributary. site. u . y ..� gym.a '` � �' awe "*fie s . Photo#5 View of the sandbar located in the northeastern portion of the pond.