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Home My WebLink About20130702 Ver 1_TOC Water Quality Data 6-2015_2015101351 Stantec May 6, 2015 Attention: Jeff Schaffer NCEEP 1652 Mail Service Center Raleigh, NC 27699 -1652 Dear Jeff, Stantec Consulting Services Inc. 801 Jones Franklin Road, Suite 300 Raleigh NC 27606 -3394 Tel: (919) 851 -6866 Fax: (919) 851 -7024 Reference: Quarterly Report 7 — Maynard Road Nitrogen Removal Water Quality Study On behalf of the Town of Cary, this letter is to serve as the seventh quarterly report for the Maynard Road Nitrogen Removal Water Quality Study. The yearly interim report was submitted in July of 2014. Water quality samples were collected at the project area on March 20, 2015 at the upstream (Site #1o) and downstream (Site #1) water quality sites. Flow monitoring was also conducted at the corresponding flow sites (Site #10 and Site #11, respectively). Precipitation levels for the sampling date were also retrieved. The laboratory report for the sampling event is attached. Regards, STANTEC CONSULTING SERVICES INC. Kristin Weidner Project Manager Phone: 919-865-7368 Fax: 919-851-7024 Kristin.Weidner@stantec.com Attachment: Laboratory reports (1) c. Eric Kulz, Town of Cary Design with community in mind ENCO Laboratories �eoR11� Accurate. Timely. Responsive. Innovative. 102 -A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Tuesday, March 31, 2015 Stantec Consulting, Inc. (ST018) Attn: Kristin Weidner 801 Jones Franklin Road, Suite 300 Raleigh, NC 27606 RE: Laboratory Results for Project Number: 171300115, Project Name /Desc: Town of Cary ENCO Workorder(s): C416637 Dear Kristin Weidner, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, March 20, 2015. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods /procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Link Thrower Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 1 of 8 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8 9 0 E (D www,encolabs.com SAMPLE SUMMARY/ LABORATORY CHRONICLE Client ID: Upstream Lab ID: C416637 -01 Sampled: 03/20/15 09:57 Received: 03/20/15 11:05 Parameter Hold Date /Time(sl Preo Date /Time(s) Analvsis Date /Time(s) EPA 351.2 04/17/15 03/25/15 09:53 03/26/15 08:40 EPA 353.2 03/22/15 09:57 03/20/15 14:24 03/20/15 15:19 EPA 353.2 04/17/15 03/24/15 07:30 03/24/15 09:51 EPA 353.2 12/13/17 03/24/15 13:12 03/24/15 13:34 Client ID: Downstream Lab ID: C416637 -02 Sampled: 03/20/15 10:49 Received: 03/20/15 11:05 Parameter Hold Date /Time(sl Preo Date /Time(s) Analvsis Date /Time(s) EPA 351.2 04/17/15 03/25/15 09:53 03/26/15 08:42 EPA 353.2 03/22/15 10:49 03/20/15 14:24 03/20/15 15:26 EPA 353.2 04/17/15 03/24/15 07:30 03/24/15 09:58 EPA 353.2 12/13/17 03/24/15 13:12 03/24/15 13:34 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 2 of 8 (96JE(B) www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: Upstream Lab ID: C416637 -01 Anal a Results Flaa MDL POLL Units Method Notes Nitrate as N 0.36 0.025 0.10 mg /L EPA 353.2 Nitrate /Nitrite as N 0.36 0.041 0.10 mg /L EPA 353.2 Total Kjeldahl Nitrogen 0.90 0.26 0.48 mg /L EPA 351.2 Client ID: Downstream Lab ID: C416637 -02 Anal a Results Flaa MDL POLL Units Method Notes Nitrate as N 0.27 0.025 0.10 mg /L EPA 353.2 Nitrate /Nitrite as N 0.27 0.041 0.10 mg /L EPA 353.2 Total Kjeldahl Nitrogen 0.81 0.26 0.48 mg /L EPA 351.2 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 of 8 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8 9 6 1 ES www.encolabs.com ANALYTICAL RESULTS 1 Description: Upstream Lab Sample ID:C416637 -01 Received: 03/20/15 11:05 Matrix: Surface Water Sampled: 03 /20/15 09:57 Work Order: C416637 Project: Town of Cary Sampled By: Nick Ronan (Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analvte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Nitrate as N [14797- 55 -8] A 0.36 mg /L 1 0.025 0.10 5C24023 EPA 353.2 03/24/15 13:34 SHA Nitrate/ Nitrite as NA 0.36 mg /L 1 0.041 0.10 5C24002 EPA 353.2 03/24/15 09:51 SHA Nitrite as N [14797- 65 -0]A 0.017 U mg /L 1 0.017 0.10 5C20025 EPA 353.2 03/20/15 15:19 SHA Total Kjeldahl Nitrogen 0.90 mg /L 1 0.26 0.48 5C25008 EPA 351.2 03/26/15 08:40 SHA Description: Downstream Lab Sample ID:C416637 -02 Received: 03/20/15 11:05 Matrix: Surface Water Sampled: 03 /20/15 10:49 Work Order: C416637 Project: Town of Cary Sampled By: Nick Ronan (Classical Chemistry Parameters • ^ - ENCO Cary certified analyte [NC 5911 Analvte fCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Nitrate as N [14797- 55 -8] A 0.27 mg /L 1 0.025 0.10 5C24023 EPA 353.2 03/24/15 13:34 SHA Nitrate/ Nitrite as NA 0.27 mg /L 1 0.041 0.10 5C24002 EPA 353.2 03/24/15 09:58 SHA Nitrite as N [14797- 65 -0]A 0.017 U mg /L 1 0.017 0.10 5C20025 EPA 353.2 03/20/15 15:26 SHA Total Kjeldahl Nitrogen 0.81 mg /L 1 0.26 0.48 5C25008 EPA 351.2 03/26/15 08:42 SHA FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 of 8 I (Classical Chemistry Parameters - Quality Control Batch 5C20025 - NO PREP Blank (SC20025 -BLK3) QUALITY CONTROL DATA Analvte Result Flaci Q Nitrite as N 0.017 U 0.10 I LCS (SC20025-BSI) mg /L Analvte Result Flaq POL Nitrite as N 0.99 Units 0.10 ILCS(5C20025 -BS2) mg /L 1.00 99 90 -110 Analvte Result Flaq POL Nitrite as N 1.0 Units 0.10 Matrix Spike (SC20025 -MS1) mg /L 1.00 100 90 -110 Source: C416637 -01 Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:21 Analvte Result Flaq P_(LL Nitrite as N 0.97 1.00 0.017 U 97 90 -110 0.10 Matrix Spike Dup (SC20025 -MSD1) Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:22 Source: C416637 -03 RPD Units Level Result %REC Limits RPD Analvte Result Flaq POL Nitrite as N 0.97 0.10 Batch SC24002 - NO PREP RPD Units Level Result %REC Limits RPD Blank (SC24002 -BLKI) mg /L Analvte Result Flaq POL Nitrate /Nitrite as N 0.041 U 0.10 I LCS (SC24002-BS1) mg /L 1.25 102 90 -110 Analvte Result Flag P2 Nitrate /Nitrite as N 1.3 Units 0.10 Matrix Spike (SC24002 -MS1) mg /L 0.513 0.36 128 90 -110 Source: C416637 -03 Prepared: 03/24/2015 07:30 Analyzed: 03/24/2015 09:56 Analvte Result Flaq POL Nitrate /Nitrite as N 1.0 0.513 0.36 99 90 -110 16 0.10 Matrix Spike Dup (5C24002 -MSD1) Source: C416637 -01 Analvte Result Flaq POL Nitrate /Nitrite as N 0.87 0.10 Batch 5C25008 - Same (96JEO) www.encolabs.com Notes I Notes I Notes I Notes I Notes Notes I Notes I Notes QM -05 M Notes QM -11 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8 Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:18 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:10 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L 1.00 99 90 -110 Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:30 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L 1.00 100 90 -110 Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:21 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L 1.00 0.017 U 97 90 -110 Prepared: 03/20/2015 14:24 Analyzed: 03/20/2015 15:22 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L 1.00 0.017 U 97 90 -110 0.3 10 Prepared: 03/24/2015 07:30 Analyzed: 03/24/2015 09:49 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L Prepared: 03/24/2015 07:30 Analyzed: 03/24/2015 09:47 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L 1.25 102 90 -110 Prepared: 03/24/2015 07:30 Analyzed: 03/24/2015 09:54 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L 0.513 0.36 128 90 -110 Prepared: 03/24/2015 07:30 Analyzed: 03/24/2015 09:56 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L 0.513 0.36 99 90 -110 16 10 Notes I Notes I Notes I Notes I Notes Notes I Notes I Notes QM -05 M Notes QM -11 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 of 8 I (Classical Chemistry Parameters - Quality Control Batch 5C25008 - Same - Continued Blank (SC25008 -BLK3) Analvte Total Kjeldahl Nitrogen I LCS (SC25008-BSI) QUALITY CONTROL DATA Result Flaq Q 0.26 Ll 0.48 Analvte Result Flaq POL Total Kjeldahl Nitrogen 12 Units 0.48 Matrix Spike (SC25008 -MS1) mg /L Source: C501354 -03 Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:31 Analvte Result Flaq POL Total Kjeldahl Nitrogen 43 D 1.5 I Matrix Spike Dup (SC25008 -MSD3) Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:35 Source: C501354 -01 RPD Units Level Result %REC Limits RPD Analvte Result Flaq P_QL Total Kjeldahl Nitrogen 42 D 1.5 9 0 E (D www.encolabs.com M Notes Notes I Notes QM -05 M Notes QM -05 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8 Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:29 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:31 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L 12.0 100 90 -110 Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:35 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L 4.79 40 47 90 -110 Prepared: 03/25/2015 09:53 Analyzed: 03/26/2015 08:37 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit mg /L 4.79 40 45 90 -110 0.2 10 M Notes Notes I Notes QM -05 M Notes QM -05 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 6 of 8 9 *1E0 www.encolabs.com IFLAGS /NOTES AND DEFINITIONS M B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification ". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. QM -05 The spike recovery was outside acceptance limits for the MS and /or MSD due to matrix interference. The LCS and /or LCSD were within acceptance limits showing that the laboratory is in control and the data is acceptable. QM -11 Precision between duplicate matrix spikes of the same sample was outside acceptance limits. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 of 8 0 Sample Chain of Custody Form Acct#: ST018 Client Stantec Consulting, Inc. (ST018) Contact: Kristin Weidner Ship To: 801 Jones Franklin Road, Suite 300 Raleigh, NC 27606 Report To: I 801 Jones Franklin Road, Suite 300 Raleigh, NC 27606 C416637 -01 IS " q r c��um Upstream Prelog #: C416637 Project# /Reference: Town of Cary Required TAT: 5 ENCO Contact: Link Thrower 102 -A Woodwinds Industrial Court Cary, NC 27511 Raleigh, NC 27606 Analysestontainers Analyses: Nitrate as N 353.2 , Nitrate Calc 353.2 , Nitrite as N 353.2 , NOX 353.2 , TKN 351.2 Containers: 1 - 250mLP . 1 - 250mLP +H2SO4 --------------------------------- - - - - -- - - - -- - ---- - - - - -- C416637 -02 V9 (- ,Mownstream Analyses: Nitrate as N 353.2 , Nitrate Calc 353.2 , Nitrite as N 353.2 , NOX 353.2 , TKN 351.2 Containers: 1 - 250mLP , 1 - 250mLP +H2SO4 Sampled By: Temp: Condition. _Acceptable _Unacceptable z ►2,> 07�, 12t, 1 k Relinquished By: DatilTme: C Received By: DataMlme: - JI;1- Notes. Containers in this sample kit may contain chemical preservatives as required by the EPA procedures. Information concerning the materials can be found below. DO NOT rinse containers prior to use! When filling preserved containers, use caution not to inhale vapors that may be caused in the chemical reaction between the sample and the preservatives. Collect samples in a well - ventilated area or take appropriate precautions to avoid exposure to these fumes. See cautions below pertaining to the handling of these materials. It is the shipper's responsibility to ensure that the samples are packed in such a manner to prevent breakage and that any required temperature is maintained during transit until receipt at the aboratory A temperature blank has been included to measure the ambient temperature of the cooler upon receipt at the lab. Please do not remove this container from the cooler, but pack along with the samples in a similar manner. This bottle contains deionized water only The information below afe PRECAUTIONARY STATEMENTS ONLYI All potential hazards posed by these materials have not been addressed. For additional information or assistance, please contact your organization's safety professional. Cautions 8 Abbreviations HCI Hydrochloric Acid - STRONG ACID! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water. HNO3 Nitric Acid - STRONG ACID! STRONG OXIDIZER' Avoid skin and eye contact. If contact is made, flush affected areas immediately with water. H310,1 : Phosphoric Acid -STRONG ACID! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water. H2SO4: Sulfuric Acid -STRONG ACID! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water. Asc Acid: Ascorbic Acid -Avoid skin and eye contact. If contact is made, flush affected areas immediately with water. ZnAc : Zinc Acetate -Avoid skin and eye contact. If contact is made, flush affected areas immediately with water. NaHSO4 : Sodium Thiosulfate - Avoid skin and eye contact. If contact is made, flush affected areas immediately with water. Page 8 of 8 NaOH : Sodium Hydroxide - STRONG CAUSTIC! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water. McOH Methanol - Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.