8612 Eagle Creek Parkway, Savage, MN Tel: Fax:

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1 862 Eagle Creek Parkway, Savage, MN Tel: Fax: October 4, 206 Independent School District # Greeley Street South Stillwater, MN Attn: Mr. Tony Willger RE: ISD #834 Resampling Elevated Outlets Using Flush Draws Project #688 I. INTRODUCTION This report presents the results of water testing for lead in drinking water using flush sampling following the Minnesota Department of Health (MDH) Reducing Lead in Drinking Water: A Manual for Minnesota Schools for those elevated outlets as reported in the FIELD ENVIRONMENTAL August, 204 report. As indicated in that report, the following sites had lead levels above the action limit: Afton-Lakeland (4 outlets) Lake Elmo (2 outlets) Stillwater Area High School ( outlet) Stonebridge Elementary (2 outlets) Withrow Elementary (2 outlets) *The fixture at Oak-Land Junior High was since removed and is not included in this round of sampling. Samples were collected by FIELD ENVIRONMENTAL on September 2, 206. II. DISCUSSION Lead is a toxic metal that is harmful to human health when it is ingested or inhaled. Unlike other environmental contaminates, lead is stored in our bones and can be released over time into the bloodstream. Lead exposure is a serious health concern, especially for young children and infants. Children s bodies absorb more lead than adults. Exposure to high levels of lead in children and infants may result in developmental delays, lower IQ s, hearing loss, hyperactivity, and learning disabilities. The Lead Contamination Control Act of 988 (LCCA) applies to all schools, whether they purchase water from a water utility (i.e., city or rural water) or they supply their own water (i.e., well). The intent of the LCCA is to identify and reduce lead in drinking water at schools and day care facilities. It relies on voluntary compliance by individual schools and school districts. The United States Environmental Protection Agency (EPA), Minnesota Department of Health (MDH), and the Minnesota Department of Education (MDE) recommend testing of potable water sources (water used for consumption) every five (5) years to determine the presence of lead. The EPA and MDH recommend that actions be taken if lead concentration exceeds 20 parts per billion (ppb) or 20 micrograms per liter (ug/l).

2 Field Environmental Consulting, Inc. Client: ISD #834 Page: 2 Report of: Resampling Elevated Outlets Using Flush Draws Project No.: 688 Location: Afton-Lakeland, Lake Elmo, Stillwater Area High School, Stonebridge, Withrow Date: October 4, 206 The MDH Reducing Lead in Drinking Water: A Manual for Minnesota Schools has designed the following flow chart to provide corrective actions for fixtures testing > 20 ppb: The scope of this project was to determine if flush sampling for a prescribed time reduces lead to below the action level of 20 ppb.

3 Field Environmental Consulting, Inc. Client: ISD #834 Page: 3 Report of: Resampling Elevated Outlets Using Flush Draws Project No.: 688 Location: Afton-Lakeland, Lake Elmo, Stillwater Area High School, Stonebridge, Withrow Date: October 4, 206 III. METHODOLOGY FIELD ENVIRONMENTAL collected flush samples for those elevated outlets as indicated in the August, 204 report. Flush samples consist of water emitted from an outlet after a stated flush time. Prior to the flush sampling, the water emitted from the fixture must have been sitting (not used) for a period of 8 hours or more but not exceeding 8 hours. Water was collected immediately in the morning before it could be used for other purposes. FIELD ENVIRONMENTAL and ISD #834 specified two unique flush times; five (5) minutes and ten (0) minutes. Flush samples were collected using clean (250 ml) sampling bottles treated with 2.5 mls Nitric Acid (20%). The bottles were filled to the top, capped, recorded and transported to the lab. Analysis was conducted by of Minneapolis, Minnesota using EPA Method ICPMS for determination of trace elements in drinking water. Per the request of ISD #834, first draw samples were also collected at Afton-Lakeland Elementary. IV. RESULTS Laboratory analysis of first draw samples for those identified fixtures at Afton-Lakeland Elementary revealed that ten (0) fixtures had lead results above the action level of 20 ppb. However, flushing for either five (5) or ten (0) minutes reduced those levels to below the action level. Five (5) or ten (0) minute flush draw sampling at Lake Elmo Elementary, Stonebridge Elementary, Withrow Elementary, and Stillwater Area High School for those identified fixtures reduced lead levels to below the action level. A complete table of all locations sampled and corresponding results is provided in Appendix A. Building maps indicating sampling locations and results are provided in Appendix B. Pace Analytical laboratory reports are provided in Appendix C. V. CONCLUSIONS Flushing for five (5) or ten (0) minutes prior to consumption (i.e. morning) reduces lead levels to below the action level for those identified fixtures. However, midday flushing may need to be included if there s a concern that lead levels may rise above 20 ppb later on in the day. A sign should be posted to indicate the need for flushing prior to use for those identified fixtures. ISD #834 should communicate results according to their School Board Policy or Lead in Water Program. VI. REMARKS The environmental services performed by FIELD ENVIRONMENTAL s technicians, analysts and project managers for this project have been conducted in a manner consistent with the degree of care and technical skill exercised by environmental professionals currently practicing in this area under similar budget and time constraints. Recommendations contained in this report represent our professional judgment at the time the project was performed. No warranty or guarantee, expressed or implied, is made regarding the findings, conclusions, or recommendations contained in this report. FIELD ENVIRONMENTAL appreciates the opportunity to provide services to meet your environmental needs.

4 Field Environmental Consulting, Inc. Client: ISD #834 Page: 4 Report of: Resampling Elevated Outlets Using Flush Draws Project No.: 688 Location: Afton-Lakeland, Lake Elmo, Stillwater Area High School, Stonebridge, Withrow Date: October 4, 206 Any questions regarding the fieldwork, sample results or presented findings should be directed to Field Environmental Consulting, Inc. PREPARED and REVIEWED BY: Field Environmental Consulting, Inc. Amy Weinzierl, CSP (#27824) EHS Manager Amy@fieldconsultinginc.com Gaia Ewing EHS Technician Gaia@fieldconsultinginc.com Attachments Appendix A: Sample Locations and Results Tables Appendix B: Drawings Appendix C: Laboratory Reports

5 APPENDIX A SAMPLE LOCATIONS AND RESULTS TABLES

6 ISD #834 School Name: Afton-Lakeland Elementary (AL) Date: 5/2/204 (Initial First Draw Sampling) Date: 9/2/206 (Flush Draw Sampling) Level Room Number Location First Floor 0 Classroom First Floor 03 Classroom First Floor 04 Classroom First Floor 05 Classroom First Floor 07 Classroom First Floor 5 Classroom First Floor 9 Classroom First Floor 206 Classroom First Floor 203 Classroom First Floor 205 Classroom First Floor 207 Classroom First Floor 308 Media Center First Floor 3 Classroom First Floor 305 Classroom Sample IDs 2, 0-AL, 0- AL-05, 0-AL- 0 3, 02-AL, 02- AL-05, 02-AL- 0 4, 03-AL, 03- AL-05, 03-AL- 0 6, 04-AL, 04- AL-05, 04-AL- 0 7, 05-AL,05- AL-05, 05-AL- 0 3,06-AL, 06- AL-05, 06-AL- 0 6, 07-AL, 07- AL-05, 07-AL- 0 20, 09-AL, 09- AL-05, 09-AL- 0 23, -AL, - AL-05, -AL- 0 24, 0-AL, 0- AL-05, 0-AL- 0 25, 08-AL, 08- AL-05, 08-AL- 0 29, 2-AL, 2- AL-05, 2-AL- 0 35, 4-AL,4- AL-05, 4-AL- 0 38,3-AL, 3- AL-05, 3-AL- 0 Type S = Sink DF = Drinking Fountain SF = Sink/Fountain Combination WC = Water Cooler First Draw Lead Result (ppb) First Draw Lead Result (ppb) Flush Lead Result (5 Min) (ppb) Flush Lead Result (0 Min) (ppb) SF SF SF SF SF SF SF S S S S S S S of

7 ISD #834 School Name: Lake Elmo Elementary (LE) Date: 5/2/204 (Initial First Draw Sampling) Date: 9/2/206 (Flush Draw Sampling) Level Room Number Location Sample IDs Type S = Sink DF = Drinking Fountain SF = Sink/Fountain Combination WC = Water Cooler First Draw Lead Result (ppb) Flush Lead Result (5 Min) (ppb) Flush Lead Result (0 Min) (ppb) First Floor 606 Classroom 29, 0-LE-05, 0-LE-0 SF First Floor 44 (South Sink) Classroom 47, 02-LE-05, 02-LE-0 S First Floor 44 (North Sink) Classroom 03-LE-05, 03-LE-0 S Not Sampled of

8 ISD #834 School Name: Stillwater Area High School (SAHS) Date: 5/2/204 (Initial First Draw Sampling) Date: 9/2/206 (Flush Draw Sampling) Level Room Number Location Sample IDs First Floor - Kitchen - Kettle #3 59,0-SAHS-5, 0-SAHS-0 Type S = Sink DF = Drinking Fountain SF = Sink/Fountain Combination WC = Water Cooler First Draw Lead Result (ppb) Flush Lead Result (5 Min) (ppb) Flush Lead Result (0 Min) (ppb) S of

9 ISD #834 School Name: Stillwater Junior High (SJH) Date: 5/2/204 (Initial First Draw Sampling) Date: 9/2/206 (Flush Draw Sampling) Level Room Number Location First Floor 04S Room First Floor 07S Room First Floor 08S Room First Floor 3S Room (Middle) First Floor 90W Room Sample IDs 32, 02-SJH- 5, 02-SJH- 0 33, 03-SJH- 5, 03-SJH- 0 34, 04-SJH- 5, 04-SJH- 0 4,05-SJH- 5, 05-SJH- 0 43, 0-SJH- 5, 0-SJH- 0 Type S = Sink DF = Drinking Fountain SF = Sink/Fountain Combination WC = Water Cooler First Draw Lead Result (ppb) Flush Lead Result (5 Min) (ppb) Flush Lead Result (0 Min) (ppb) S S S S S of

10 ISD #834 School Name: Stonebridge Elementary (SE) Date: 5/2/204 (Initial Fisrt Draw Sampling) Date: 9/2/206 (Flush Draw Sampling) Level Room Number Location Sample IDs First Floor A04 Soutwest Kitchen First Floor B2 Classroom 3, 02-SE-5, 02-SE-0 34, 03-SE- 5,03-SE-0 Type S = Sink DF = Drinking Fountain SF = Sink/Fountain Combination WC = Water Cooler First Draw Lead Result (ppb) Flush Lead Result 9- Flush Lead Result ( (5 Min) (ppb) Min) (ppb) S S of

11 ISD #834 School Name: Withrow Elementary (WE) Date: 5/2/204 (Initial First Draw Sampling) Date: 9/2/206 (Flush Draw Sampling) Level Room Number Location First Floor 0 Classroom First Floor 02 Classroom Sample IDs, 02-WE-5, 02- WE-0 3, 0-WE-5, 0- WE-0 Type S = Sink DF = Drinking Fountain SF = Sink/Fountain Combination WC = Water Cooler First Draw Lead Result (ppb) Flush Lead Result (5 Min) (ppb) Flush Lead Result (0 Min) (ppb) SF SF of

12 APPENDIX B SAMPLE LOCATION DRAWINGS

13 Afton-Lakeland Elementary Water Sampling Project Project #688 Initial First Draw Sampling (204) Initial First Draw Sampling (206) Flush (5 Min) Sampling (206) Flush (0 Min) Sampling (206) Lead =< 20 ppb Lead=< 20 ppb Lead =< 20 ppb Lead =< 20 ppb Lead > 20 ppb Lead > 20 ppb Lead > 20 ppb Lead > 20 ppb

14 Lake Elmo Elementary First Floor Water Sampling Project Project #688 Initial First Draw Sampling (204) Flush (5 Min) Sampling (206) Flush (0 Min) Sampling (206) Lead =< 20 ppb Lead =< 20 ppb Lead =<20 ppb Lead > 20 ppb Lead > 20 ppb Lead > 20 ppb

15 Lake Elmo Elementary Second Floor Water Sampling Project Project #688 Initial First Draw Sampling (204) Flush (5 Min) Sampling (206 Flush (0 Min) Sampling (206 = Lead < 20 ppb = Lead > 20 ppb = Lead < 20 ppb = Lead > 20 ppb = Lead <20 ppb = Lead > 20 ppb

16

17 Stillwater Area High School Second Floor Water Sampling Project Project #409 = Lead < 20 ppb = Lead > 20 ppb

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19 Stillwater Junior High School Second Floor Water Sampling Project Project #688 Initial First Draw Sampling (204) Flush (5 Min) Sampling (206) Flush (0 Min) Sampling (206) = Lead < 20 ppb = Lead < 20 ppb = Lead < 20 ppb = Lead > 20 ppb = Lead > 20 ppb = Lead > 20 ppb

20 Stonebridge Elementary Water Sampling Project Project #688 Initial First Draw Sampling (204) Flush (5 Min) Sampling (206) Flush (0 Min) Sampling (206) Lead =< 20 ppb Lead > 20 ppb Lead =<20 ppb Lead >20 ppb Lead =< 20 ppb Lead > 20 ppb

21 Withrow Elementary Water Sampling Project Project #688 Initial First Draw Sampling (204 Flush (5 Min) Sampling (206) Flush (0 Min) Sampling (206) Lead =< 20 ppb Lead > 20 ppb Lead =< 20 ppb Lead > 20 ppb Lead=< 20 ppb Lead > 20 ppb

22 APPENDIX C LABORATORY REPORTS

23 #=CL# LIMS USE: FR - AMY WEINZIERL LIMS OBJECT ID: September 29, 206 Amy Weinzierl Field Environmental Consulting 862 Eagle Creek Parkway Savage, MN RE: 688 Afton Lkland Lake Elmo Dear Amy Weinzierl: Enclosed are the analytical results for sample(s) received by the laboratory on September 2, 206. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Timothy Sandager timothy.sandager@pacelabs.com Project Manager Enclosures cc: Steve Field, Field Environmental Consulting General Mailbox, Field Environmental Consulting without the written consent of. Page of 30

24 #=CP# CERTIFICATIONS 688 Afton Lkland Lake Elmo Minnesota Certification IDs 700 Elm Street SE Suite 200, 525 N 8th Street, Salina, KS 6740 A2LA Certification #: Alaska Certification #: UST-078 Alaska Certification #MN00064 Alabama Certification #40770 Arizona Certification #: AZ-004 Arkansas Certification #: California Certification #: 055CA Colorado Certification #Pace Connecticut Certification #: PH-0256 EPA Region 8 Certification #: 8TMS-L Florida/NELAP Certification #: E87605 Guam Certification #:4-008r Georgia Certification #: 959 Georgia EPD #: Pace Idaho Certification #: MN00064 Hawaii Certification #MN00064 Illinois Certification #: 2000 Indiana Certification#C-MN-0 Iowa Certification #: 368 Kansas Certification #: E-067 Kentucky Dept of Envi. Protection - DW #90062 Kentucky Dept of Envi. Protection - WW #:90062 Louisiana DEQ Certification #: 3086 Louisiana DHH #: LA4000 Maine Certification #: 2030 Maryland Certification #: 322 Michigan DEPH Certification #: 9909 Minnesota Certification #: Mississippi Certification #: Pace Montana Certification #: MT0092 Nevada Certification #: MN_00064 Nebraska Certification #: Pace New Jersey Certification #: MN-002 New York Certification #: 647 North Carolina Certification #: 530 North Carolina State Public Health #: North Dakota Certification #: R-036 Ohio EPA #: 450 Ohio VAP Certification #: CL0 Oklahoma Certification #: 9507 Oregon Certification #: MN20000 Oregon Certification #: MN30000 Pennsylvania Certification #: Puerto Rico Certification Saipan (CNMI) #:MP0003 South Carolina #: Texas Certification #: T Tennessee Certification #: 0288 Utah Certification #: MN Virginia DGS Certification #: 25 Virginia/VELAP Certification #: Pace Washington Certification #: C486 West Virginia Certification #: 382 West Virginia DHHR #:9952C Wisconsin Certification #: without the written consent of. Page 2 of 30

25 #=SS# SAMPLE SUMMARY 688 Afton Lkland Lake Elmo Lab ID Sample ID Matrix Date Collected Date Received AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0:25 without the written consent of. Page 3 of 30

26 #=SS# SAMPLE SUMMARY 688 Afton Lkland Lake Elmo Lab ID Sample ID Matrix Date Collected Date Received AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL-0 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: AL Water 09/2/6 05:00 09/2/6 0: AL-05 Water 09/2/6 05:00 09/2/6 0: LE-05 Water 09/2/6 06:30 09/2/6 0: LE-0 Water 09/2/6 06:30 09/2/6 0: LE-05 Water 09/2/6 06:30 09/2/6 0: LE-0 Water 09/2/6 06:30 09/2/6 0: LE-05 Water 09/2/6 06:30 09/2/6 0: LE-0 Water 09/2/6 06:30 09/2/6 0:25 without the written consent of. Page 4 of 30

27 #=SA# SAMPLE ANALYTE COUNT 688 Afton Lkland Lake Elmo Lab ID Sample ID Method Analysts Analytes Reported AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA RJS AL-05 EPA RJS AL-0 EPA TT AL EPA RJS AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA TT3 without the written consent of. Page 5 of 30

28 #=SA# SAMPLE ANALYTE COUNT 688 Afton Lkland Lake Elmo Lab ID Sample ID Method Analysts Analytes Reported AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL-0 EPA TT AL EPA TT AL-05 EPA TT AL EPA TT AL-05 EPA TT AL EPA TT AL-05 EPA TT AL EPA TT AL-05 EPA TT AL EPA TT AL-05 EPA TT LE-05 EPA TT LE-0 EPA TT LE-05 EPA TT LE-0 EPA TT LE-05 EPA TT LE-0 EPA TT3 without the written consent of. Page 6 of 30

29 #=AR# ANALYTICAL RESULTS 688 Afton Lkland Lake Elmo Sample: 0-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 28.2 ug/l /22/6 7: Sample: 0-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.8 ug/l /22/6 7: Sample: 0-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.5 ug/l /22/6 7: Sample: 02-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 54. ug/l /22/6 7: Sample: 02-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 3.6 ug/l /22/6 7: Sample: 02-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 3.3 ug/l /22/6 7: Date: 09/29/206 0:4 AM without the written consent of. Page 7 of 30

30 #=AR# ANALYTICAL RESULTS 688 Afton Lkland Lake Elmo Sample: 03-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 3.5 ug/l /22/6 7: Sample: 03-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 4.4 ug/l /22/6 7: Sample: 03-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.2 ug/l /22/6 7: Sample: 04-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 2.9 ug/l /22/6 7: Sample: 04-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 2.9 ug/l /22/6 7: Sample: 04-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.2 ug/l /22/6 7: Date: 09/29/206 0:4 AM without the written consent of. Page 8 of 30

31 #=AR# ANALYTICAL RESULTS 688 Afton Lkland Lake Elmo Sample: 05-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water MET ICPMS Preparation Method: EPA Lead 0.07 mg/l /28/6 0:0 09/29/6 09: Sample: 05-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water MET ICPMS Preparation Method: EPA Lead mg/l /28/6 0:0 09/29/6 09: Sample: 05-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 3.3 ug/l /22/6 7: Sample: 06-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water MET ICPMS Preparation Method: EPA Lead 0.03 mg/l /28/6 0:0 09/29/6 09: Sample: 06-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 2.5 ug/l /22/6 7: Sample: 06-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.7 ug/l /22/6 7: Date: 09/29/206 0:4 AM without the written consent of. Page 9 of 30

32 #=AR# ANALYTICAL RESULTS 688 Afton Lkland Lake Elmo Sample: 07-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 22.8 ug/l /22/6 7: Sample: 07-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.9 ug/l /22/6 7: Sample: 07-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 2.4 ug/l /22/6 6: Sample: 08-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 43.9 ug/l /22/6 6: Sample: 08-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 4.4 ug/l /22/6 6: Sample: 08-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 2.4 ug/l /22/6 6: Date: 09/29/206 0:4 AM without the written consent of. Page 0 of 30

33 #=AR# ANALYTICAL RESULTS 688 Afton Lkland Lake Elmo Sample: 09-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 3.7 ug/l /22/6 6: Sample: 09-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.3 ug/l /22/6 6: Sample: 09-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 0.90 ug/l /22/6 6: Sample: 0-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 39.7 ug/l /22/6 6: Sample: 0-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 2.0 ug/l /22/6 6: Sample: 0-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 2.4 ug/l /22/6 6: Date: 09/29/206 0:4 AM without the written consent of. Page of 30

34 #=AR# ANALYTICAL RESULTS 688 Afton Lkland Lake Elmo Sample: -AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 25.9 ug/l /22/6 6: Sample: -AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.8 ug/l /22/6 6: Sample: -AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.3 ug/l /22/6 6: Sample: 2-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 72.6 ug/l /22/6 6: Sample: 2-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 3. ug/l /22/6 7: Sample: 2-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.3 ug/l /22/6 7: Date: 09/29/206 0:4 AM without the written consent of. Page 2 of 30

35 #=AR# ANALYTICAL RESULTS 688 Afton Lkland Lake Elmo Sample: 3-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 3.9 ug/l /22/6 7: Sample: 3-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 6. ug/l /22/6 7: Sample: 3-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 3.5 ug/l /22/6 7: Sample: 4-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 5.7 ug/l /22/6 7: Sample: 4-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead 0.46 ug/l /22/6 8: Sample: 4-AL-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead.5 ug/l /22/6 8: Date: 09/29/206 0:4 AM without the written consent of. Page 3 of 30

36 #=AR# ANALYTICAL RESULTS 688 Afton Lkland Lake Elmo Sample: 5-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead ND ug/l /22/6 8: Sample: 5-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead ND ug/l /22/6 8: Sample: 6-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead ND ug/l /22/6 8: Sample: 6-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead ND ug/l /22/6 8: Sample: 7-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead ND ug/l /22/6 8: Sample: 7-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead ND ug/l /22/6 8: Date: 09/29/206 0:4 AM without the written consent of. Page 4 of 30

37 #=AR# ANALYTICAL RESULTS 688 Afton Lkland Lake Elmo Sample: 8-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead ND ug/l /22/6 8: Sample: 8-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead ND ug/l /22/6 8: Sample: 9-AL Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead ND ug/l /22/6 8: Sample: 9-AL-05 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:25 Matrix: Water Lead ND ug/l /22/6 8: Sample: 0-LE-05 Lab ID: Collected: 09/2/6 06:30 Received: 09/2/6 0:25 Matrix: Water Lead 4.6 ug/l /22/6 8: Sample: 0-LE-0 Lab ID: Collected: 09/2/6 06:30 Received: 09/2/6 0:25 Matrix: Water Lead.6 ug/l /22/6 8: Date: 09/29/206 0:4 AM without the written consent of. Page 5 of 30

38 #=AR# ANALYTICAL RESULTS 688 Afton Lkland Lake Elmo Sample: 02-LE-05 Lab ID: Collected: 09/2/6 06:30 Received: 09/2/6 0:25 Matrix: Water Lead.7 ug/l /22/6 8: Sample: 02-LE-0 Lab ID: Collected: 09/2/6 06:30 Received: 09/2/6 0:25 Matrix: Water Lead.3 ug/l /22/6 8: Sample: 03-LE-05 Lab ID: Collected: 09/2/6 06:30 Received: 09/2/6 0:25 Matrix: Water Lead 0.32 ug/l /22/6 8: Sample: 03-LE-0 Lab ID: Collected: 09/2/6 06:30 Received: 09/2/6 0:25 Matrix: Water Lead 0.33 ug/l /22/6 8: Date: 09/29/206 0:4 AM without the written consent of. Page 6 of 30

39 #=QC# QUALITY CONTROL DATA 688 Afton Lkland Lake Elmo QC Batch: QC Batch Method: EPA Analysis Method: Analysis Description: EPA ICPMS Metals, Drinking Water Associated Lab Samples: , , , , , , , , , , , , , , , , METHOD BLANK: Associated Lab Samples: , , , , , , , , , , , , , , Parameter , , Blank Units Result Matrix: Water Reporting Limit Analyzed Lead ug/l ND /22/6 7:04 Qualifiers LABORATORY CONTROL SAMPLE: Parameter Units Spike Conc. LCS Result LCS % Rec % Rec Limits Lead ug/l Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MS Spike Parameter Units Result Conc. MSD Spike Conc MS Result MSD Result MS % Rec MSD % Rec Max % Rec Limits RPD RPD Lead ug/l Qual MATRIX SPIKE SAMPLE: Parameter Units Result Spike Conc. MS Result MS % Rec % Rec Limits Lead ug/l Qualifiers Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Date: 09/29/206 0:4 AM without the written consent of. Page 7 of 30

40 #=QC# QUALITY CONTROL DATA 688 Afton Lkland Lake Elmo QC Batch: QC Batch Method: EPA Analysis Method: Analysis Description: EPA ICPMS Metals, Drinking Water Associated Lab Samples: , , , , , , , , , , , , , , , , , , , METHOD BLANK: Matrix: Water Associated Lab Samples: , , , , , , , , , , , , , , , , , , , Parameter Units Blank Result Reporting Limit Analyzed Qualifiers Lead ug/l ND /22/6 6:23 LABORATORY CONTROL SAMPLE: Parameter Units Spike Conc. LCS Result LCS % Rec % Rec Limits Lead ug/l Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MS Spike Parameter Units Result Conc. MSD Spike Conc MS Result MSD Result MS % Rec MSD % Rec Max % Rec Limits RPD RPD Lead ug/l Qual MATRIX SPIKE SAMPLE: Parameter Units Result Spike Conc. MS Result MS % Rec % Rec Limits Lead ug/l Qualifiers Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Date: 09/29/206 0:4 AM without the written consent of. Page 8 of 30

41 #=QC# QUALITY CONTROL DATA 688 Afton Lkland Lake Elmo QC Batch: QC Batch Method: EPA Analysis Method: Analysis Description: EPA ICPMS Metals, Drinking Water Associated Lab Samples: , , , , , , , , , , , , , , , , , METHOD BLANK: Matrix: Water Associated Lab Samples: , , , , , , , , , , , , , , , , , Parameter Units Blank Result Reporting Limit Analyzed Qualifiers Lead ug/l ND /22/6 7:59 LABORATORY CONTROL SAMPLE: Parameter Units Spike Conc. LCS Result LCS % Rec % Rec Limits Lead ug/l Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MS Spike Parameter Units Result Conc. MSD Spike Conc MS Result MSD Result MS % Rec MSD % Rec Max % Rec Limits RPD RPD Lead ug/l Qual MATRIX SPIKE SAMPLE: Parameter Units Result Spike Conc. MS Result MS % Rec % Rec Limits Lead ug/l ND Qualifiers Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Date: 09/29/206 0:4 AM without the written consent of. Page 9 of 30

42 #=QC# QUALITY CONTROL DATA 688 Afton Lkland Lake Elmo QC Batch: QC Batch Method: EPA Analysis Method: Analysis Description: Associated Lab Samples: , , EPA MET METHOD BLANK: Associated Lab Samples: , , Parameter Units Blank Result Matrix: Water Reporting Limit Analyzed Lead mg/l ND /29/6 08:57 Qualifiers LABORATORY CONTROL SAMPLE: Parameter Units Spike Conc. LCS Result LCS % Rec % Rec Limits Lead mg/l Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MS Spike Parameter Units Result Conc. MSD Spike Conc MS Result MSD Result MS % Rec MSD % Rec Max % Rec Limits RPD RPD Lead mg/l 7.2 ug/l Qual Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Date: 09/29/206 0:4 AM without the written consent of. Page 20 of 30

43 #=QL# QUALIFIERS 688 Afton Lkland Lake Elmo DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit. S - Surrogate,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. Date: 09/29/206 0:4 AM without the written consent of. Page 2 of 30

44 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE 688 Afton Lkland Lake Elmo Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL-0 EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL-0 EPA AL EPA AL-05 EPA AL EPA AL-05 EPA AL EPA AL-05 EPA AL EPA AL-05 EPA AL EPA Date: 09/29/206 0:4 AM without the written consent of. Page 22 of 30

45 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE 688 Afton Lkland Lake Elmo Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch AL-05 EPA LE-05 EPA LE-0 EPA LE-05 EPA LE-0 EPA LE-05 EPA LE-0 EPA AL EPA EPA AL-05 EPA EPA AL EPA EPA Date: 09/29/206 0:4 AM without the written consent of. Page 23 of 30

46 Page 24 of 30

47 Page 25 of 30

48 Page 26 of 30

49 047 (DA) 048 (DA) Page 27 of 30

50 Page 28 of 30

51 9/22/6 Page 29 of 30

52 Page 30 of 30

53 #=CL# LIMS USE: FR - AMY WEINZIERL LIMS OBJECT ID: September 26, 206 Amy Weinzierl Field Environmental Consulting 862 Eagle Creek Parkway Savage, MN RE: 688 Stillwater - HIgh School Dear Amy Weinzierl: Enclosed are the analytical results for sample(s) received by the laboratory on September 2, 206. The results relate only to the samples included in this report. Results reported herein conform to the most current TNI standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Timothy Sandager timothy.sandager@pacelabs.com Project Manager Enclosures cc: Steve Field, Field Environmental Consulting General Mailbox, Field Environmental Consulting without the written consent of. Page of 0

54 #=CP# CERTIFICATIONS 688 Stillwater - HIgh School Minnesota Certification IDs 700 Elm Street SE Suite 200, 525 N 8th Street, Salina, KS 6740 A2LA Certification #: Alaska Certification #: UST-078 Alaska Certification #MN00064 Alabama Certification #40770 Arizona Certification #: AZ-004 Arkansas Certification #: California Certification #: 055CA Colorado Certification #Pace Connecticut Certification #: PH-0256 EPA Region 8 Certification #: 8TMS-L Florida/NELAP Certification #: E87605 Guam Certification #:4-008r Georgia Certification #: 959 Georgia EPD #: Pace Idaho Certification #: MN00064 Hawaii Certification #MN00064 Illinois Certification #: 2000 Indiana Certification#C-MN-0 Iowa Certification #: 368 Kansas Certification #: E-067 Kentucky Dept of Envi. Protection - DW #90062 Kentucky Dept of Envi. Protection - WW #:90062 Louisiana DEQ Certification #: 3086 Louisiana DHH #: LA4000 Maine Certification #: 2030 Maryland Certification #: 322 Michigan DEPH Certification #: 9909 Minnesota Certification #: Mississippi Certification #: Pace Montana Certification #: MT0092 Nevada Certification #: MN_00064 Nebraska Certification #: Pace New Jersey Certification #: MN-002 New York Certification #: 647 North Carolina Certification #: 530 North Carolina State Public Health #: North Dakota Certification #: R-036 Ohio EPA #: 450 Ohio VAP Certification #: CL0 Oklahoma Certification #: 9507 Oregon Certification #: MN20000 Oregon Certification #: MN30000 Pennsylvania Certification #: Puerto Rico Certification Saipan (CNMI) #:MP0003 South Carolina #: Texas Certification #: T Tennessee Certification #: 0288 Utah Certification #: MN Virginia DGS Certification #: 25 Virginia/VELAP Certification #: Pace Washington Certification #: C486 West Virginia Certification #: 382 West Virginia DHHR #:9952C Wisconsin Certification #: without the written consent of. Page 2 of 0

55 #=SS# SAMPLE SUMMARY 688 Stillwater - HIgh School Lab ID Sample ID Matrix Date Collected Date Received SAHS-5 Water 09/2/6 05:00 09/2/6 0: SAHS-0 Water 09/2/6 05:00 09/2/6 0:5 without the written consent of. Page 3 of 0

56 #=SA# SAMPLE ANALYTE COUNT 688 Stillwater - HIgh School Lab ID Sample ID Method Analysts Analytes Reported SAHS-5 EPA TT SAHS-0 EPA TT3 without the written consent of. Page 4 of 0

57 #=AR# ANALYTICAL RESULTS 688 Stillwater - HIgh School Sample: 0-SAHS-5 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:5 Matrix: Water Lead.4 ug/l /22/6 8: Sample: 0-SAHS-0 Lab ID: Collected: 09/2/6 05:00 Received: 09/2/6 0:5 Matrix: Water Lead.4 ug/l /22/6 8: Date: 09/26/206 04:38 PM without the written consent of. Page 5 of 0

58 #=QC# QUALITY CONTROL DATA 688 Stillwater - HIgh School QC Batch: QC Batch Method: EPA Associated Lab Samples: , Analysis Method: Analysis Description: EPA ICPMS Metals, Drinking Water METHOD BLANK: Associated Lab Samples: , Parameter Units Blank Result Matrix: Water Reporting Limit Analyzed Lead ug/l ND /22/6 7:59 Qualifiers LABORATORY CONTROL SAMPLE: Parameter Units Spike Conc. LCS Result LCS % Rec % Rec Limits Lead ug/l Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MS Spike Parameter Units Result Conc. MSD Spike Conc MS Result MSD Result MS % Rec MSD % Rec Max % Rec Limits RPD RPD Lead ug/l Qual MATRIX SPIKE SAMPLE: Parameter Units Result Spike Conc. MS Result MS % Rec % Rec Limits Lead ug/l ND Qualifiers Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Date: 09/26/206 04:38 PM without the written consent of. Page 6 of 0

59 #=QL# QUALIFIERS 688 Stillwater - HIgh School DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit. S - Surrogate,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. Date: 09/26/206 04:38 PM without the written consent of. Page 7 of 0

60 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE 688 Stillwater - HIgh School Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch SAHS-5 EPA SAHS-0 EPA Date: 09/26/206 04:38 PM without the written consent of. Page 8 of 0

61 Page 9 of 0

62 9/22/6 Page 0 of 0

63 #=CL# LIMS USE: FR - AMY WEINZIERL LIMS OBJECT ID: October 03, 206 Amy Weinzierl Field Environmental Consulting 862 Eagle Creek Parkway Savage, MN RE: 688 Stillwater: Junior High Dear Amy Weinzierl: Enclosed are the analytical results for sample(s) received by the laboratory on September 2, 206. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Timothy Sandager timothy.sandager@pacelabs.com Project Manager Enclosures cc: Steve Field, Field Environmental Consulting General Mailbox, Field Environmental Consulting without the written consent of. Page of

64 #=CP# CERTIFICATIONS 688 Stillwater: Junior High Minnesota Certification IDs 700 Elm Street SE Suite 200, Alaska Certification UST N 8th Street, Salina, KS 6740 A2LA Certification #: Alaska Certification #: UST-078 Alaska Certification #MN00064 Alabama Certification #40770 Arizona Certification #: AZ-004 Arkansas Certification #: California Certification #: 055CA Colorado Certification #Pace Connecticut Certification #: PH-0256 EPA Region 8 Certification #: 8TMS-L Florida/NELAP Certification #: E87605 Guam Certification #:4-008r Georgia Certification #: 959 Georgia EPD #: Pace Idaho Certification #: MN00064 Hawaii Certification #MN00064 Illinois Certification #: 2000 Indiana Certification#C-MN-0 Iowa Certification #: 368 Kansas Certification #: E-067 Kentucky Dept of Envi. Protection - DW #90062 Kentucky Dept of Envi. Protection - WW #:90062 Louisiana DEQ Certification #: 3086 Louisiana DHH #: LA4000 Maine Certification #: 2030 Maryland Certification #: 322 Michigan DEPH Certification #: 9909 Minnesota Certification #: Mississippi Certification #: Pace Montana Certification #: MT0092 Nevada Certification #: MN_00064 Nebraska Certification #: Pace New Jersey Certification #: MN-002 New York Certification #: 647 North Carolina Certification #: 530 North Carolina State Public Health #: North Dakota Certification #: R-036 Ohio EPA #: 450 Ohio VAP Certification #: CL0 Oklahoma Certification #: 9507 Oregon Certification #: MN20000 Oregon Certification #: MN30000 Pennsylvania Certification #: Puerto Rico Certification Saipan (CNMI) #:MP0003 South Carolina #: Texas Certification #: T Tennessee Certification #: 0288 Utah Certification #: MN Virginia DGS Certification #: 25 Virginia/VELAP Certification #: Pace Washington Certification #: C486 West Virginia Certification #: 382 West Virginia DHHR #:9952C Wisconsin Certification #: without the written consent of. Page 2 of

65 #=SS# SAMPLE SUMMARY 688 Stillwater: Junior High Lab ID Sample ID Matrix Date Collected Date Received SJH-5 Water 09/2/6 05:30 09/2/6 0: SJH-0 Water 09/2/6 05:30 09/2/6 0: SJH-5 Water 09/2/6 05:30 09/2/6 0: SJH-0 Water 09/2/6 05:30 09/2/6 0: SJH-5 Water 09/2/6 05:30 09/2/6 0: SJH-0 Water 09/2/6 05:30 09/2/6 0: SJH-5 Water 09/2/6 05:30 09/2/6 0: SJH-0 Water 09/2/6 05:30 09/2/6 0: SJH-5 Water 09/2/6 05:30 09/2/6 0: SJH-0 Water 09/2/6 05:30 09/2/6 0:5 without the written consent of. Page 3 of

66 #=SA# SAMPLE ANALYTE COUNT 688 Stillwater: Junior High Lab ID Sample ID Method Analysts Analytes Reported SJH-5 EPA RJS SJH-0 EPA RJS SJH-5 EPA RJS SJH-0 EPA RJS SJH-5 EPA RJS SJH-0 EPA RJS SJH-5 EPA RJS SJH-0 EPA RJS SJH-5 EPA RJS SJH-0 EPA RJS without the written consent of. Page 4 of

67 #=AR# ANALYTICAL RESULTS 688 Stillwater: Junior High Sample: 0-SJH-5 Lab ID: Collected: 09/2/6 05:30 Received: 09/2/6 0:5 Matrix: Water Lead.7 ug/l /30/6 9: Sample: 0-SJH-0 Lab ID: Collected: 09/2/6 05:30 Received: 09/2/6 0:5 Matrix: Water Lead.8 ug/l /30/6 9: Sample: 02-SJH-5 Lab ID: Collected: 09/2/6 05:30 Received: 09/2/6 0:5 Matrix: Water Lead.4 ug/l /30/6 9: Sample: 02-SJH-0 Lab ID: Collected: 09/2/6 05:30 Received: 09/2/6 0:5 Matrix: Water Lead.0 ug/l /30/6 9: Sample: 03-SJH-5 Lab ID: Collected: 09/2/6 05:30 Received: 09/2/6 0:5 Matrix: Water Lead.4 ug/l /30/6 9: Sample: 03-SJH-0 Lab ID: Collected: 09/2/6 05:30 Received: 09/2/6 0:5 Matrix: Water Lead. ug/l /30/6 9: Date: 0/03/206 0:7 PM without the written consent of. Page 5 of

68 #=AR# ANALYTICAL RESULTS 688 Stillwater: Junior High Sample: 04-SJH-5 Lab ID: Collected: 09/2/6 05:30 Received: 09/2/6 0:5 Matrix: Water Lead.9 ug/l /30/6 9: Sample: 04-SJH-0 Lab ID: Collected: 09/2/6 05:30 Received: 09/2/6 0:5 Matrix: Water Lead.3 ug/l /30/6 9: Sample: 05-SJH-5 Lab ID: Collected: 09/2/6 05:30 Received: 09/2/6 0:5 Matrix: Water Lead.2 ug/l /30/6 9: Sample: 05-SJH-0 Lab ID: Collected: 09/2/6 05:30 Received: 09/2/6 0:5 Matrix: Water Lead 0.78 ug/l /30/6 20: Date: 0/03/206 0:7 PM without the written consent of. Page 6 of

69 #=QC# QUALITY CONTROL DATA 688 Stillwater: Junior High QC Batch: QC Batch Method: EPA Analysis Method: Analysis Description: EPA ICPMS Metals, Drinking Water Associated Lab Samples: , , , , , , , , , METHOD BLANK: Associated Lab Samples: , , , , , , , Parameter , , Blank Units Result Matrix: Water Reporting Limit Analyzed Lead ug/l ND /30/6 9:4 Qualifiers LABORATORY CONTROL SAMPLE: Parameter Units Spike Conc. LCS Result LCS % Rec % Rec Limits Lead ug/l Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MS Spike Parameter Units Result Conc. MSD Spike Conc MS Result MSD Result MS % Rec MSD % Rec Max % Rec Limits RPD RPD Lead ug/l Qual MATRIX SPIKE SAMPLE: Parameter Units Result Spike Conc. MS Result MS % Rec % Rec Limits Lead ug/l Qualifiers Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Date: 0/03/206 0:7 PM without the written consent of. Page 7 of

70 #=QL# QUALIFIERS 688 Stillwater: Junior High DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit. S - Surrogate,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. Date: 0/03/206 0:7 PM without the written consent of. Page 8 of

71 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE 688 Stillwater: Junior High Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch SJH-5 EPA SJH-0 EPA SJH-5 EPA SJH-0 EPA SJH-5 EPA SJH-0 EPA SJH-5 EPA SJH-0 EPA SJH-5 EPA SJH-0 EPA Date: 0/03/206 0:7 PM without the written consent of. Page 9 of

72 Page 0 of

73 9/22/6 Page of

74 #=CL# LIMS USE: FR - AMY WEINZIERL LIMS OBJECT ID: October 03, 206 Amy Weinzierl Field Environmental Consulting 862 Eagle Creek Parkway Savage, MN RE: 688 Stillwater: Stonebridge Dear Amy Weinzierl: Enclosed are the analytical results for sample(s) received by the laboratory on September 2, 206. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Timothy Sandager timothy.sandager@pacelabs.com Project Manager Enclosures cc: Steve Field, Field Environmental Consulting General Mailbox, Field Environmental Consulting without the written consent of. Page of 0

75 #=CP# CERTIFICATIONS 688 Stillwater: Stonebridge Minnesota Certification IDs 700 Elm Street SE Suite 200, Alaska Certification UST N 8th Street, Salina, KS 6740 A2LA Certification #: Alaska Certification #: UST-078 Alaska Certification #MN00064 Alabama Certification #40770 Arizona Certification #: AZ-004 Arkansas Certification #: California Certification #: 055CA Colorado Certification #Pace Connecticut Certification #: PH-0256 EPA Region 8 Certification #: 8TMS-L Florida/NELAP Certification #: E87605 Guam Certification #:4-008r Georgia Certification #: 959 Georgia EPD #: Pace Idaho Certification #: MN00064 Hawaii Certification #MN00064 Illinois Certification #: 2000 Indiana Certification#C-MN-0 Iowa Certification #: 368 Kansas Certification #: E-067 Kentucky Dept of Envi. Protection - DW #90062 Kentucky Dept of Envi. Protection - WW #:90062 Louisiana DEQ Certification #: 3086 Louisiana DHH #: LA4000 Maine Certification #: 2030 Maryland Certification #: 322 Michigan DEPH Certification #: 9909 Minnesota Certification #: Mississippi Certification #: Pace Montana Certification #: MT0092 Nevada Certification #: MN_00064 Nebraska Certification #: Pace New Jersey Certification #: MN-002 New York Certification #: 647 North Carolina Certification #: 530 North Carolina State Public Health #: North Dakota Certification #: R-036 Ohio EPA #: 450 Ohio VAP Certification #: CL0 Oklahoma Certification #: 9507 Oregon Certification #: MN20000 Oregon Certification #: MN30000 Pennsylvania Certification #: Puerto Rico Certification Saipan (CNMI) #:MP0003 South Carolina #: Texas Certification #: T Tennessee Certification #: 0288 Utah Certification #: MN Virginia DGS Certification #: 25 Virginia/VELAP Certification #: Pace Washington Certification #: C486 West Virginia Certification #: 382 West Virginia DHHR #:9952C Wisconsin Certification #: without the written consent of. Page 2 of 0

76 #=SS# SAMPLE SUMMARY 688 Stillwater: Stonebridge Lab ID Sample ID Matrix Date Collected Date Received SE-5 Water 09/2/6 07:00 09/2/6 0: SE-0 Water 09/2/6 07:00 09/2/6 0: SE-5 Water 09/2/6 07:00 09/2/6 0: SE-0 Water 09/2/6 07:00 09/2/6 0: SE-5 Water 09/2/6 07:00 09/2/6 0: SE-0 Water 09/2/6 07:00 09/2/6 0:5 without the written consent of. Page 3 of 0

77 #=SA# SAMPLE ANALYTE COUNT 688 Stillwater: Stonebridge Lab ID Sample ID Method Analysts Analytes Reported SE-5 EPA RJS SE-0 EPA RJS SE-5 EPA RJS SE-0 EPA RJS SE-5 EPA RJS SE-0 EPA RJS without the written consent of. Page 4 of 0

78 #=AR# ANALYTICAL RESULTS 688 Stillwater: Stonebridge Sample: 0-SE-5 Lab ID: Collected: 09/2/6 07:00 Received: 09/2/6 0:5 Matrix: Water Lead 0.23 ug/l /30/6 20: Sample: 0-SE-0 Lab ID: Collected: 09/2/6 07:00 Received: 09/2/6 0:5 Matrix: Water Lead 0. ug/l /30/6 20: Sample: 02-SE-5 Lab ID: Collected: 09/2/6 07:00 Received: 09/2/6 0:5 Matrix: Water Lead 0.2 ug/l /30/6 20: Sample: 02-SE-0 Lab ID: Collected: 09/2/6 07:00 Received: 09/2/6 0:5 Matrix: Water Lead 0.5 ug/l /30/6 20: Sample: 03-SE-5 Lab ID: Collected: 09/2/6 07:00 Received: 09/2/6 0:5 Matrix: Water Lead 0.84 ug/l /30/6 20: Sample: 03-SE-0 Lab ID: Collected: 09/2/6 07:00 Received: 09/2/6 0:5 Matrix: Water Lead 0.7 ug/l /30/6 20: Date: 0/03/206 0:7 PM without the written consent of. Page 5 of 0

79 #=QC# QUALITY CONTROL DATA 688 Stillwater: Stonebridge QC Batch: QC Batch Method: EPA Analysis Method: Analysis Description: EPA ICPMS Metals, Drinking Water Associated Lab Samples: , , , , , METHOD BLANK: Associated Lab Samples: , , , , , Parameter Units Blank Result Matrix: Water Reporting Limit Analyzed Lead ug/l ND /30/6 9:4 Qualifiers LABORATORY CONTROL SAMPLE: Parameter Units Spike Conc. LCS Result LCS % Rec % Rec Limits Lead ug/l Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MS Spike Parameter Units Result Conc. MSD Spike Conc MS Result MSD Result MS % Rec MSD % Rec Max % Rec Limits RPD RPD Lead ug/l Qual MATRIX SPIKE SAMPLE: Parameter Units Result Spike Conc. MS Result MS % Rec % Rec Limits Lead ug/l Qualifiers Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Date: 0/03/206 0:7 PM without the written consent of. Page 6 of 0

80 #=QL# QUALIFIERS 688 Stillwater: Stonebridge DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit. S - Surrogate,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. Date: 0/03/206 0:7 PM without the written consent of. Page 7 of 0

81 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE 688 Stillwater: Stonebridge Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch SE-5 EPA SE-0 EPA SE-5 EPA SE-0 EPA SE-5 EPA SE-0 EPA Date: 0/03/206 0:7 PM without the written consent of. Page 8 of 0

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84 #=CL# LIMS USE: FR - AMY WEINZIERL LIMS OBJECT ID: October 03, 206 Amy Weinzierl Field Environmental Consulting 862 Eagle Creek Parkway Savage, MN RE: 688 Stillwater: Withww Dear Amy Weinzierl: Enclosed are the analytical results for sample(s) received by the laboratory on September 2, 206. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Timothy Sandager timothy.sandager@pacelabs.com Project Manager Enclosures cc: Steve Field, Field Environmental Consulting General Mailbox, Field Environmental Consulting without the written consent of. Page of 0

85 #=CP# CERTIFICATIONS 688 Stillwater: Withww Minnesota Certification IDs 700 Elm Street SE Suite 200, Alaska Certification UST N 8th Street, Salina, KS 6740 A2LA Certification #: Alaska Certification #: UST-078 Alaska Certification #MN00064 Alabama Certification #40770 Arizona Certification #: AZ-004 Arkansas Certification #: California Certification #: 055CA Colorado Certification #Pace Connecticut Certification #: PH-0256 EPA Region 8 Certification #: 8TMS-L Florida/NELAP Certification #: E87605 Guam Certification #:4-008r Georgia Certification #: 959 Georgia EPD #: Pace Idaho Certification #: MN00064 Hawaii Certification #MN00064 Illinois Certification #: 2000 Indiana Certification#C-MN-0 Iowa Certification #: 368 Kansas Certification #: E-067 Kentucky Dept of Envi. Protection - DW #90062 Kentucky Dept of Envi. Protection - WW #:90062 Louisiana DEQ Certification #: 3086 Louisiana DHH #: LA4000 Maine Certification #: 2030 Maryland Certification #: 322 Michigan DEPH Certification #: 9909 Minnesota Certification #: Mississippi Certification #: Pace Montana Certification #: MT0092 Nevada Certification #: MN_00064 Nebraska Certification #: Pace New Jersey Certification #: MN-002 New York Certification #: 647 North Carolina Certification #: 530 North Carolina State Public Health #: North Dakota Certification #: R-036 Ohio EPA #: 450 Ohio VAP Certification #: CL0 Oklahoma Certification #: 9507 Oregon Certification #: MN20000 Oregon Certification #: MN30000 Pennsylvania Certification #: Puerto Rico Certification Saipan (CNMI) #:MP0003 South Carolina #: Texas Certification #: T Tennessee Certification #: 0288 Utah Certification #: MN Virginia DGS Certification #: 25 Virginia/VELAP Certification #: Pace Washington Certification #: C486 West Virginia Certification #: 382 West Virginia DHHR #:9952C Wisconsin Certification #: without the written consent of. Page 2 of 0

86 #=SS# SAMPLE SUMMARY 688 Stillwater: Withww Lab ID Sample ID Matrix Date Collected Date Received WE-5 Water 09/2/6 07:45 09/2/6 0: WE-0 Water 09/2/6 07:45 09/2/6 0: WE-05 Water 09/2/6 07:45 09/2/6 0: WE-0 Water 09/2/6 07:45 09/2/6 0:5 without the written consent of. Page 3 of 0

87 #=SA# SAMPLE ANALYTE COUNT 688 Stillwater: Withww Lab ID Sample ID Method Analysts Analytes Reported WE-5 EPA RJS WE-0 EPA RJS WE-05 EPA RJS WE-0 EPA RJS without the written consent of. Page 4 of 0

88 #=AR# ANALYTICAL RESULTS 688 Stillwater: Withww Sample: 0-WE-5 Lab ID: Collected: 09/2/6 07:45 Received: 09/2/6 0:5 Matrix: Water Lead 0.68 ug/l /30/6 20: Sample: 0-WE-0 Lab ID: Collected: 09/2/6 07:45 Received: 09/2/6 0:5 Matrix: Water Lead 0.27 ug/l /30/6 20: Sample: 02-WE-05 Lab ID: Collected: 09/2/6 07:45 Received: 09/2/6 0:5 Matrix: Water Lead 0.66 ug/l /30/6 20: Sample: 02-WE-0 Lab ID: Collected: 09/2/6 07:45 Received: 09/2/6 0:5 Matrix: Water Lead.2 ug/l /30/6 20: Date: 0/03/206 0:7 PM without the written consent of. Page 5 of 0

89 #=QC# QUALITY CONTROL DATA 688 Stillwater: Withww QC Batch: QC Batch Method: EPA Analysis Method: Analysis Description: EPA ICPMS Metals, Drinking Water Associated Lab Samples: , , , METHOD BLANK: Associated Lab Samples: , , , Parameter Units Blank Result Matrix: Water Reporting Limit Analyzed Lead ug/l ND /30/6 9:4 Qualifiers LABORATORY CONTROL SAMPLE: Parameter Units Spike Conc. LCS Result LCS % Rec % Rec Limits Lead ug/l Qualifiers MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MS Spike Parameter Units Result Conc. MSD Spike Conc MS Result MSD Result MS % Rec MSD % Rec Max % Rec Limits RPD RPD Lead ug/l Qual MATRIX SPIKE SAMPLE: Parameter Units Result Spike Conc. MS Result MS % Rec % Rec Limits Lead ug/l Qualifiers Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Date: 0/03/206 0:7 PM without the written consent of. Page 6 of 0

90 #=QL# QUALIFIERS 688 Stillwater: Withww DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit. S - Surrogate,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. Date: 0/03/206 0:7 PM without the written consent of. Page 7 of 0

91 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE 688 Stillwater: Withww Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch WE-5 EPA WE-0 EPA WE-05 EPA WE-0 EPA Date: 0/03/206 0:7 PM without the written consent of. Page 8 of 0

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