Neilson Research Corporation received 42 sample(s) on 6/18/2018 for the analyses presented in the following report.

Transcription

1 7/7/2018 Rick Rose Medford School District 815 S Oakdale ve Medford, OR TEL: (541) FX RE: NMHS Lead Testing Dear Rick Rose: Order No.: received 42 sample(s) on 6/18/2018 for the analyses presented in the following report. The results relate only to the parameters tested or to the sample as received by the laboratory. This report shall not be reproduced except in full, without the written approval of Neilson Research Corporation. If you have any questions regarding these test results, please feel free to call. Sincerely, Tamra R. Schmedemann Project Manager Page 1 of 21

2 nalysis Report 245 South Grape Street, Medford, Oregon Fax ORELP EP OR00028 CLIENT: Medford School District Project: NMHS Lead Testing Lab Order: Date: 07-Jul-18 CSE NRRTIVE The analyses were performed according to the guidelines in the Quality ssurance Program. This report contains analytical results for the sample(s) as received by the laboratory. certifies that this report is in compliance with the requirements of NELP. No unusual difficulties were experienced during analysis of this batch except as noted below or qualified with data flags on the reports. The EP recommended action level for lead in schools is mg/l. Page 2 of 21 Page 1 of 1

3 nalysis Report Medford School District Lab Order: S Oakdale ve Medford, OR South Grape Street, Medford, Oregon Fax Received Date: 6/18/2018 3:16:00 PM Reported Date: 7/7/ :36:24 M ORELP EP OR00028 Sample Information: NMHS Lead Testing Lab ID: Collection Date: 6/16/ :37:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47833 Sample Location: Gym Lobby Bot Fill S Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :39:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47801 Sample Location: Gym Lobby DF N Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :43:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47813 Sample Location: Conc Stand Sink Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :44:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47605 Sample Location: Conc Stand Cap Mach Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :45:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47635 Sample Location: Conc Stand Coffee Mach Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Qualifiers: * Value exceeds Maximum Contaminant Level B nalyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit S Spike Recovery outside accepted recovery limits Page 3 of 21 Page 1 of 9

4 nalysis Report Medford School District Lab Order: S Oakdale ve Medford, OR South Grape Street, Medford, Oregon Fax Received Date: 6/18/2018 3:16:00 PM Reported Date: 7/7/ :36:24 M ORELP EP OR00028 Sample Information: NMHS Lead Testing Lab ID: Collection Date: 6/16/ :46:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47608 Sample Location: Conc Stand Soda Mach Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :51:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47613 Sample Location: Gym DF E Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :49:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47601 Sample Location: Gym DF W Date nalyzed NELP ccredited Lead mg/l 1 6/26/2018 Lab ID: Collection Date: 6/16/ :55:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47610 Sample Location: Girls Lkr Room DF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/2018 1:08:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47641 Sample Location: Gym Train Room Ice Machin Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Qualifiers: * Value exceeds Maximum Contaminant Level B nalyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit S Spike Recovery outside accepted recovery limits Page 4 of 21 Page 2 of 9

5 nalysis Report Medford School District Lab Order: S Oakdale ve Medford, OR South Grape Street, Medford, Oregon Fax Received Date: 6/18/2018 3:16:00 PM Reported Date: 7/7/ :36:24 M ORELP EP OR00028 Sample Information: NMHS Lead Testing Lab ID: Collection Date: 6/16/2018 1:07:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47782 Sample Location: Gym Train Room Dk Fill Hos Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :58:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47632 Sample Location: Boys Lkr Room DF rea W Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/2018 1:02:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47638 Sample Location: Boys Lkr Room DF RR rea Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/2018 1:12:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47792 Sample Location: Outside Wrest Room DF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/2018 1:15:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47662 Sample Location: Upper Gym DF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Qualifiers: * Value exceeds Maximum Contaminant Level B nalyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit S Spike Recovery outside accepted recovery limits Page 5 of 21 Page 3 of 9

6 nalysis Report Medford School District Lab Order: S Oakdale ve Medford, OR South Grape Street, Medford, Oregon Fax Received Date: 6/18/2018 3:16:00 PM Reported Date: 7/7/ :36:24 M ORELP EP OR00028 Sample Information: NMHS Lead Testing Lab ID: Collection Date: 6/16/ :22:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47612 Sample Location: T-11 DF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :23:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47603 Sample Location: T-12 DF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :15:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47643 Sample Location: T-10 DF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :18:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47634 Sample Location: T-9 DF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :09:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47607 Sample Location: Outside T-1DF Up Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Qualifiers: * Value exceeds Maximum Contaminant Level B nalyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit S Spike Recovery outside accepted recovery limits Page 6 of 21 Page 4 of 9

7 nalysis Report Medford School District Lab Order: S Oakdale ve Medford, OR South Grape Street, Medford, Oregon Fax Received Date: 6/18/2018 3:16:00 PM Reported Date: 7/7/ :36:24 M ORELP EP OR00028 Sample Information: NMHS Lead Testing Lab ID: Collection Date: 6/16/ :11:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47604 Sample Location: Outside T-1DF Low Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :05:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47619 Sample Location: Main Office DF Upper Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :08:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47617 Sample Location: Main Office DF Lower Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :09:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47620 Sample Location: Tornado Conference Room Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :10:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47626 Sample Location: Courtyard Behind Office Upp Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Qualifiers: * Value exceeds Maximum Contaminant Level B nalyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit S Spike Recovery outside accepted recovery limits Page 7 of 21 Page 5 of 9

8 nalysis Report Medford School District Lab Order: S Oakdale ve Medford, OR South Grape Street, Medford, Oregon Fax Received Date: 6/18/2018 3:16:00 PM Reported Date: 7/7/ :36:24 M ORELP EP OR00028 Sample Information: NMHS Lead Testing Lab ID: Collection Date: 6/16/ :15:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47628 Sample Location: Courtyard Behind Office Lwr Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :20:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47701 Sample Location: Staff Break Room Sink Date nalyzed Lead ND mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :20:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47650 Sample Location: Staff Break Room Ice Maker Date nalyzed NELP ccredited NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :27:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47703 Sample Location: Outside H-21 DF Date nalyzed NELP ccredited Lead mg/l 1 6/26/2018 Lab ID: Collection Date: 6/16/ :30:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47627 Sample Location: Outside H-13 DF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Qualifiers: * Value exceeds Maximum Contaminant Level B nalyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit S Spike Recovery outside accepted recovery limits Page 8 of 21 Page 6 of 9

9 nalysis Report Medford School District Lab Order: S Oakdale ve Medford, OR South Grape Street, Medford, Oregon Fax Received Date: 6/18/2018 3:16:00 PM Reported Date: 7/7/ :36:24 M ORELP EP OR00028 Sample Information: NMHS Lead Testing Lab ID: Collection Date: 6/16/ :33:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47653 Sample Location: Outside H-38 DF Left Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :34:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47696 Sample Location: Outside H-38 DF Right Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :47:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47697 Sample Location: CDC Kitchen Sink Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :50:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47689 Sample Location: CDC Inf rea Sink Out Kit Dr Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :53:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47698 Sample Location: CDC Toddler rea Sink Left Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Qualifiers: * Value exceeds Maximum Contaminant Level B nalyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit S Spike Recovery outside accepted recovery limits Page 9 of 21 Page 7 of 9

10 nalysis Report Medford School District Lab Order: S Oakdale ve Medford, OR South Grape Street, Medford, Oregon Fax Received Date: 6/18/2018 3:16:00 PM Reported Date: 7/7/ :36:24 M ORELP EP OR00028 Sample Information: NMHS Lead Testing Lab ID: Collection Date: 6/16/ :54:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47706 Sample Location: CDC Toddler rea Sink Rt Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :56:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47651 Sample Location: CDC Toddler Hallway SF Lt Date nalyzed NELP ccredited Lead *CF mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/ :57:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47673 Sample Location: CDC Toddler Hallway SF Rt Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/2018 1:02:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47690 Sample Location: CDC Pre-School Room 1 DF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/2018 1:05:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47688 Sample Location: CDC Pre-School Room 1 SF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Qualifiers: * Value exceeds Maximum Contaminant Level B nalyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit S Spike Recovery outside accepted recovery limits Page 10 of 21 Page 8 of 9

11 nalysis Report Medford School District Lab Order: S Oakdale ve Medford, OR South Grape Street, Medford, Oregon Fax Received Date: 6/18/2018 3:16:00 PM Reported Date: 7/7/ :36:24 M ORELP EP OR00028 Sample Information: NMHS Lead Testing Lab ID: Collection Date: 6/16/2018 1:06:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47702 Sample Location: CDC Pre-School Room 2 SF Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Lab ID: Collection Date: 6/16/2018 1:09:00 PM Matrix: DRINKING WTER Client Sample ID: Bottle #47700 Sample Location: CDC Pre-School Playground Date nalyzed NELP ccredited Lead mg/l 1 6/22/2018 Qualifiers: * Value exceeds Maximum Contaminant Level B nalyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit S Spike Recovery outside accepted recovery limits Page 11 of 21 Page 9 of 9

12 DT FLGS B nalyte detected in the associated method blank. B BOD lternative Calculation: The initial results performed by Standard Methods did not fall within parameters of the Standard Methods calculation. n alternate approved calculation was performed using the HCH method and the value reported is an estimated concentration. C Sample(s) does not meet NELP/ORELP sample acceptance criteria. See Case Narrative. C1 Sample(s) does not meet NELP/ORELP sample acceptance criteria for temperature. CF Results confirmed by re-analysis. CU Cleanup performed as specified by method. D1 The diesel elution pattern for the sample is not typical. D2 The sample appears to be a heavier hydrocarbon range than diesel. D3 The sample appears to be a lighter hydrocarbon range than diesel. D4 Detected hydrocarbons do not have pattern and range consistent with typical petroleum products and may be due to biogenic interference. D5 Detected hydrocarbons in the diesel range appear to be weathered diesel. E Estimated value. ER Elevated reporting limit due to matrix. Report limits (MDLs, MRLs & PQLs) are adjusted based on variations in sample preparation amounts, analytical dilutions, and percent solids, where applicable. FC Fecal Coliforms: Sample(s) received past 40 CFR Part 136 specified holding time. Results reported as estimated values. G1 The gasoline elution pattern for the sample is not typical. G2 The sample appears to be a heavier hydrocarbon range than gasoline. G3 The sample appears to be a lighter hydrocarbon range than gasoline. G4 Detected hydrocarbons in the gasoline range appear to be weathered gasoline. HP Sample re-analysis performed outside of method specified holding time. HR Sample received outside of method specified holding time. HS Sample analyzed for volatile organics contained headspace. HT t the client s request, the sample was analyzed outside of method specified holding time. H nalysis performed outside of method specified holding time. J nalyte detected below the Minimum Reporting Limit (MRL) and above the Method Detection Limit (MDL). The J flag result is an estimated value and the user should be aware that this data is of limited reliability. L Dissolved metals were not filtered within 15 minutes of collection per 40 CFR Part 136. MI Surrogate or Matrix Spike recovery is out of control limits due to matrix interference. Sample results may be biased. N See Case Narrative on page 2 of report. NLR No Legionella Recovered. PLR Presence of Legionella Recovered. Q Closing continuing calibration verification (CCV) or laboratory control sample (LCS) exceeded high recovery limits, but associated samples are non-detect and the sample results are not affected. Data meets EP/NELP requirements. R Relative percent difference (RPD) is outside of the accepted recovery limits. R1 Relative percent difference (RPD) is outside of the accepted recovery limits. However, analyses are not controlled on RPD values for sample concentrations that are less than the reporting limit. R3 The relative percent difference (RPD) and/or percent recovery for the duplicate (DUP) or matrix spike (MS)/matrix spike duplicate (MSD) cannot be accurately calculated due to the concentration of analyte already present in the sample. R4 Duplicate analysis failed due to result being at or near method reporting limit. S Surrogate and/or matrix spike recovery is outside of the accepted recovery limits. Sample results may be biased. S1 Surrogate or matrix spike recovery is outside of control limits due to dilution necessary for analysis. SC Sub-contracted to another laboratory for analysis. SP Sample(s) were not collected per EP Method 5035 protocols. The results are considered minimum values. T Toxicity Characteristic Leaching Procedure Sample submitted contained < 0.5% solids. If the waste contains <0.5% dry solids, the liquid portion of the waste, after filtration, is defined as the TCLP extract. # Value exceeds regulatory level for TCLP contaminant. X1 The motor oil elution pattern for the sample is not typical. X2 The sample appears to be a heavier hydrocarbon range than motor oil. X3 The sample appears to be a lighter hydrocarbon range than motor oil. * Value exceeds Maximum Contaminant Level or is outside the acceptable range. Page 12 of 21 NRC SOP Q-1104/D-3100 Revision 5 Effective Date: 3/12/18

13 Date: 07-Jul-18 CLIENT: Medford School District Work Order: Project: NMHS Lead Testing NLYTICL QC SUMMRY REPORT TestCode: ICPMS_200.8_SCHOOL Sample ID MB MBLK : mg/l Prep Date: 6/21/2018 RunNo: Client ID: ZZZZZ Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/22/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead ND Sample ID MB MBLK : mg/l Prep Date: 6/22/2018 RunNo: Client ID: ZZZZZ Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/22/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead ND Sample ID MB MBLK : mg/l Prep Date: 6/22/2018 RunNo: Client ID: ZZZZZ Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/22/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead ND Sample ID LCS LCS : mg/l Prep Date: 6/21/2018 RunNo: Client ID: ZZZZZ Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/22/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead Sample ID LCS LCS : mg/l Prep Date: 6/22/2018 RunNo: Client ID: ZZZZZ Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/22/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead Qualifiers: E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit R RPD outside accepted recovery limits S Spike Recovery outside accepted recovery limits Page 1 of 3 Page 13 of 21

14 Date: 07-Jul-18 CLIENT: Medford School District Work Order: Project: NMHS Lead Testing NLYTICL QC SUMMRY REPORT TestCode: ICPMS_200.8_SCHOOL Sample ID LCS LCS : mg/l Prep Date: 6/22/2018 RunNo: Client ID: ZZZZZ Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/22/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead Sample ID MS MS : mg/l Prep Date: 6/22/2018 RunNo: Client ID: Bottle #47703 Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/26/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead Sample ID MS MS : mg/l Prep Date: 6/21/2018 RunNo: Client ID: ZZZZZ Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/26/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead Sample ID MS MS : mg/l Prep Date: 6/22/2018 RunNo: Client ID: Bottle #47601 Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/26/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead Sample ID MSD MSD : mg/l Prep Date: 6/22/2018 RunNo: Client ID: Bottle #47703 Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/26/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead Qualifiers: E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit R RPD outside accepted recovery limits S Spike Recovery outside accepted recovery limits Page 2 of 3 Page 14 of 21

15 Date: 07-Jul-18 CLIENT: Medford School District Work Order: Project: NMHS Lead Testing NLYTICL QC SUMMRY REPORT TestCode: ICPMS_200.8_SCHOOL Sample ID MSD MSD : mg/l Prep Date: 6/21/2018 RunNo: Client ID: ZZZZZ Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/26/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead Sample ID MSD MSD : mg/l Prep Date: 6/22/2018 RunNo: Client ID: Bottle #47601 Batch ID: TestNo: EP (EP 200.8) nalysis Date: 6/26/2018 SeqNo: nalyte Result MRL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual Lead Qualifiers: E Value above quantitation range H Holding times for preparation or analysis exceeded J nalyte detected below quantitation limits ND Not Detected at the Minimum Reporting Limit R RPD outside accepted recovery limits S Spike Recovery outside accepted recovery limits Page 3 of 3 Page 15 of 21

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