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Home My WebLink AboutNCG550022_Correspondence_Laboratory Test Results_20190718Ab, Ar ENCO Laboraton*es Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Thursday, July 18, 2019 rl, CONNER CONSULTING (C0036) Attn: Chad Leinbach O0� 1284 WINDY RIDGE RD ' � CHAPEL HILL, NC 27517- RE: Laboratory Results for Project Number: 716 Harold Drive, Durham, Project Name/Desc: Residential ENCO Workorder(s): CC11653 Dear Chad Leinbach, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Wednesday, July 10, 2019. 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 if applicable. 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, Stephanie Franz Project Manager Enclosure(s) FINAL Yhks report relates Only to the sample as m*ved by the laboratory, and may or4y be reproduced In U. I Page 1 of 8 (� �eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client TD: 716 Harold Drive, Durham Lab ID: CC115s3-01 Sampled; 07/10/19 11:30 Received: 07/10/19 15:15 H41d Date/Tlmefsl Prep DatelTinrwfsl afffmds Colllert 18 NO PREP 07/I0/19 19:25 07/11/19 14:I7 07/10119 16:13 07/11/19 10:28 SM 254OD-2011 NO PREP 07/17/19 07/11/19 07:27 07/11/19 07:27 SM 5210 B-20I1 NO PREP 07/12/19 11:30 07/11/19 13:19 07/11/19 13.19 Ft,AL This resat rdatcs only to the sample as recdved by the laboratory, and may o* be mpmdumd to rul. Page 2 0 8 www.encolabs.com SAMPLE DETECTION SUMMARY Client ID; 716 Harold Drive, Durham Lab ID: CC11553-01 Anal to Resufft fug HK Pol. 11DIL>i M XQW Biochemical Oxygen Demand 12 2.0 2.0 mpjL SM 5210 B-2011 Cnli(orm, Fecal 12 1.0 1.0 MPN/100 mL Colikn 18 Total Suspended Solids 40 7.1 7.1 mg/L SM 2540D-2011 f .VL This report relates only do the sample as received by the laboratory, and may ardy be reproduced in U. 1 Page 3 Of $ Description: 716 Harold Drive, Durham Matrix: Waste Water Project Residential Classical Chemistry Parameters Biochemical 0xVW Demand Total Suspended Solids Microbiological Parameters CDllform, Fecal ANALYTICAL RESULTS Lab Sample ID: CC11653-01 Sampled:07/10119 11:30 Sampled By: Chad Leinbach (9 �Go www.encolabs.com Received: 07/10/19 15:15 Work Order: OC11653 Resull Flag Valk PE NU E" ARM Meth Analyzed &1t filltu 12 mq/L 1 2.0 2.0 9G11021 SM 5210 &2011 07/11/19 13:19 J0C 40 mg/L 2.86 7.1 7.1 9G11002 SM 2540D-20I1 07/11/19 07:27 LG Rgal Flag gab Rf EM 11111= )!lgthgd dnalned ft HMN 12 MPN/100 1 1.0 91310029 Coiilert 18 07/11/19 10:28 AKF mL F:r.AL This report males only max sampe as received by tlx wbo aWq, and may o* be Nprodumd in ful. L Page 4 of 8 www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 9GIIO02 - NO PREP Blank (9G11002-8LK1) Prepared & Analyzed: 07/11/2019 07.27 Spike Source %REC RPD Anal Result Elan PAL Units Level HCM& %REC Limb RPD LIM Notes Total Suspended Solids 2.5 L 2.5 mg/L LCS (9G11002-BS3) Prepared & Analyzed: 07/11/2019 07.27 Spike Sours %REC RPD Aids Raw Elan Pal. units Level %REC lie>!lllt Limb RPD LImR Noltis Total Suspended Solids 86 2.5 m911. 100 86 80.120 Duplicate (9G11002-DUP1) Prepared & Analyzed: 07/11/2019 07:27 Source: CC09014-01 Anande Result Elan POL units Spike Source %REC Level Rat %REC Limits RPD RPD Lima Notes Total Suspended Solids 3400 250 mg/L 4200 23 20 QM- It Duplicate (9611002-DUP2) Prepared & Analysed: 07/11/2019 07:27 Source: CC0RS90-01 Spike Source %REC RPD AnaLtlTa Result pan PUL Units Level Result %REC Lets RPD Limit Now Total Suspended Solids 240 45 mg/L 250 0.7 20 Balch 9611021- NO PREP Blank (9611021-81.111[1) Prepared & Analyzed: 07/11/2019 13.19 Spike Source %REC RPD Anal ltta Ralllt Elan CRJ. Units Level Relict %REC Limits RPD LIB Notes Biochemical Oxygen Demand 2.0 U 2.0 nWL LCS (91311021-BS1) Prepared & Analyzed: 07/11/2019 13:19 Spike Source %REC RPD lltli11113e Result Elan P91 Units Level Resin %REC Umltt RPD L(li11I Notes Biochemical Oxygen Demand 210 2.0 mg/L 198 106 85-115 buplicate (9G11021-DUPL) Prepared & Analyzed: 07/11/2019 13:19 Source: CCO8852-01 Spike Source %REC RPD Anal lde Read Elaalt e4L units Level Rat %REC jimi 8 RPD Limit Notes Biochemical Oxygen Demand 1500 2.0 mg/L 2000 30 30 Microbiological Parameters - Quality Control Batch 9GIO029 - NO PREP Bunk (9G10029-BLKI) Prepared; 07/10/2019 16:13 Analyzed! 07/11/201910:28 ltirlabme Result Flag e41 Ultlts Spike Source %REC Level Ailta t %REC Limits RPD RPD ILMIt Notes Col'rform, Fecal 1.0 U 1.0 MPN/100 mL Duplicate (91310029-DUP1) Prepared; 07/10/201914:25 Analyzed: 07/11/2019 10:28 Source: CC09693-03 Pilaf Result pan eat. Units Spike Source %REC Level $8gdt %REC Limits RPD RPD Limit Notes Coliform, Fecal 4.1 1.0 MPN/100 mL 2.0 65 21, QM-L2 FINAL This report relates oMy to the sample as recewed by the laboratory, and may mYy be repmd�d a ir M. I Page 5 Of B www.encDlabs.corn QUALITY CONTROL DATA Microbiological Parameters - Quality Control Batch RGIW29 - NO PREP - Condwed Dupikate (9010029-GUP2) Prepared; 07/10/201914:25 Analyzed: 07/11/2019 10:28 Source: CC1090"2 �� Spike Source. %REC RPP 9esu t Elan Ml. Units Level Result %REC LIB RPA U111It Notas Coliforrn, Fecal 1.0 U 1.0 MPN/100 mL 1.0 U 25 fry This report rdates only to the sample as raovcd by the laboramry, and may ady be reproduced In fue. I Page 6 Ot a c9ilk �ee www.encolabs.com FLAGS/NOTES AND DERNMON5 B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. 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. PQL PQL: Practical Quantitation Limit The PQL presented is the laboratory MRL. 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. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QM-iZ Precision between duplicate samples was outside acceptance limits. r Nk this MWn relates Only m the sample as rfteivW by the labomb y; and may airy be mpmducW in U. I Page 7 of 8 123cc V E _I cn c U3 W w 3 a c` m Uy 3 O Q O wCOP o-a= uj Q o m co Z i OLU g 2W 0 r$ w » r it Im al$ -0Ns a p W a A EF L I 1 v Paqe 8 of 8 1 ENwRONMENTAL -- WATER SUPPLY - WASTEWATER CONNER CONSULTING, LLC 1284 WINDY RIDGE ROAD, CHAPEL HILL, NORTH CAROLINA 27517 PHONE: (919) 260-7301 ■■rrrs■rrrrrrrr■■errrrrrrr■■■rrrrrr■■■rrrrrrr■■■srrrrrrsr■■rrrrrr■■■rrrrrrrr■■ ■■■rrrrrrrr■rrrrrrrrrrs■rrrrrrr■■■srrrrsr■■rrTrrrass■rrrrrrs■■■rrrrrsrr■■rrr■ September 13, 2019 Ms. Ruby Brown 716 Harold Drive Durham, North Carolina 27712 Re: Effluent Sampling 716 Harold Drive Durham, North Carolina Dear Ms. Brown: On July 10, 2019, Conner Consulting collected effluent samples as required on your DWQ permit, at 716 Harold Drive, Durham, North Carolina. The results are as follows: Flow: Total Residual Chlorine: Biochemical Oxygen Demand: Total Suspended Solids: Fecal Coliform: < 200 gpd (estimated) 2.2 parts per million id- 11:25 12 mg/l 40 mg/l 12 CFU/100 ml. Overall, your wastewater system appears to be functioning well. Please continue as you have in adding chlorine tablets. My field laboratory certification is #5149. Please call with questions and comments. Sincerely yours, It Chad Leinbach, P.G. Conner Consulting, LLC Field Laboratory Certification #5149 CC: Jane Bernard, Surface Water Protection