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J L ANALYTICAL SERVICES, . 217 Primoy • Modesto,California 95358 • O (20 11 - FAX(209)53841M City of Riverbank Report# L2.2-14R03506 Attn:Darin Smaller Report Date: 1011212009 6707 3rd Street Received Date: 10/01/2009 Riverbank, CA 95367 Work Order: 206644 Laboratory Number: 20664401 Description: Water,G.W.M.W.#1,10/01/09,710 Analytical Results Method Result Minimum Detection Method Analysis Analysis Analyst Constituent Level Limit Reference Date Time Fixed Dissolved Solids 690 moll 20 9.2 SM 2540E 10/0612009 16:15 MH Volatile Dissolved Solids 48 mg/1 20 9.2 SM 2540E 10/05/2009 16:15 MH =pH 6.4 SU 0.5 0.2 SM 4500-H B 10/02/2009 09:40 NH Ammonical Nitrogen by Kjeldahl < 1 moll 1.0 0.8 SM 4500 NH3 C 10/05/2009 11:33 BAM Electrical Conductivity(E.C.) 970 umholcm 1.0 1.0 SM 251085 10/02/2009 18:40 JA Nitrate Nitrogen 15 mgll 0.1 0.014 EPA 300.0 10/02/2009 12:21 JA Total Coliform(15-20 T CST) < 2 /100ml 2.0 2.0 SM 92218 10/01/2009 10:45 AP QC Results Matrix Lab Theoretical Matrix Spike Control Precision Accuracy Response Constituent QC Units Blank Matrix Spike Spike Duplicate Spike Fixed Dissolved Solids mg/1 < 20 620 1500 2100 2100 1500 2.0 91.7 93.3' Volatile Dissolved Solids moll < 20 1`50 1500 1500 1600 1400 2.0 91.7 93.3 pH SU NA NA NA NA NA ' NA NA NA NA Ammonical Nitrogen by Kjeldahl mg/i < 1 < 1 28 26 26 26 0.5 93.1 91.4 Electrical Conductivity(E.C.) umho/cm < 1 460 1400 1800 1800 1400 0.3 95.1 100.1 Nitrate Nitrogen mg/l_ < 0.1 < 0.1 0.9 0.9 0.9 0.9_ 0.4 99.1 95.6 Total Coliform(15-20 T LST) 1100ml NA NA NA NA '' NA NA NA NA NA Notes At 25 degrees C Authorized By: 10/12/2009 Amos Snider ELAP Accreditation Laboratory Certificate#1203. These results relate only to the samples tested. This report shall not be reproduced except in full,without written approval of the laboratory.