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A6L1119 E3 -4=-K Genera! ASSOCIATES Certificate of Analysis Notes: The Chain of Custody document and Sample Integrity Sheet are part of the analytical report. Any remaining sample(s) for testing will be disposed of according to BSK's sample retention policy unless other arrangements are made in advance. All positive results for EPA Methods 504.1 and 524.2 require the analysis of a Field Reagent Blank (FRB) to confirm that the results are not a contamination error from field sampling steps. if Field Reagent Blanks were not submitted with the samples, this method requirement has not been performed. Samples collected by BSK Analytical Laboratories were collected in accordance with the BSK Sampling and Collection Standard Operating Procedures. J -value is equivalent to DNQ (Detected, not quantified) which is a trace value. A trace value is an analyte detected between the MDL and the laboratory reporting limit. This result is of an unknown data quality and is only qualitative (estimated). Baseline noise, calibration curve extrapolation below the lowest calibrator, method blank detections, and integration artifacts can all produce apparent DNQ values, which contribute to the un -reliability of these values. (1) - Residual chlorine and pH analysis have a 15 minute holding time for both drinking and waste water samples as defined by the EPA and 40 CFR 136. Waste water and ground water (monitoring well) samples must be field filtered to meet the 15 minute holding time for dissolved metals. Summations of analytes (i.e. Total Trihalomethanes) may appear to add individual amounts incorrectly, due to rounding of analyte values occurring before or after the total value is calculated, as well as rounding of the total value. RL Multiplier is the factor used to adjust the reporting limit (RL) due to variations in sample preparation procedures and dilutions required for matrix interferences. Due to the subjective nature of the Threshold Odor Method, all characterizations of the detected odor are the opinion of the panel of analysts. The characterizations can be found in Standard Methods 2170B Figure 2170:1. The MCLS provided in this report (if applicable) represent the primary MCLS for that analyte. Definitions mg/L: Milligrams/Liter (ppm) MDL: Method Detection Limit MDA95: Min. Detected Activity mg/Kg: Milligrams/Kilogram (ppm) RL: Reporting Limit: DL x Dilution MPN: Most Probable Number pg/L: Micrograms/Liter (ppb) ND: None Detected at RL CFU: Colony Forming Unit pg/Kg: Micrograms/Kilogram (ppb) pCl/L: Picocuries per Liter Absent: Less than 1 CFU/100mLs %: Percent Recovered (surrogates) RL Mult: RL Multiplier Present: 1 or more CFU/100mLs NR: Non -Reportable MCL: Maximum Contaminant Limit State of Washington C824-16 Please see the individual Subcontract Lab's report for applicable certifications. BSK is not accredited under the NELAP program for the following parameters: Certifications: Please refer to our website for a copy of our Accredited Fields of Testing under each certification Fresno State of California - ELAP 1180 State of Hawaii 4021 State of Nevada CA000792016-1 State of Oregon - NELAP 4021 EPA- UCMR3 CA00079 State of Washington C997-16 Sacramento State of California - ELAP 2435 San Bernardino State of California - ELAP 2993 State of Oregon - NELAP 4119-001 Vancouver State of Oregon - NELAP WA100008-008 State of Washington C824-16 A61_1119 FINAL 12212016 1700 Printed: 12/21/2016 Page 9 QA -RP -0001-10 Final.rpt www.BSKAssociates.com of 15