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Project: Well Number: - <br /> in Tracy, CA <br /> 2 & 4" Monitoring Well <br /> Date <br /> Job #/Description: ; Prepared By: 'ng/Sampling <br /> E <br /> QED MP-SP Bladder Pump BRU <br /> 1 7 1 L3 <br /> Micro-Purge Sampling Log <br /> Sampling Protocol: Flow rate must be within 200 to 300 milliliters per minute. Flow rate must be steady while maintaining a DTW <br /> drawdown of less than 0.33 feet. A minimum of one system volume (Vs) must be purged prior to recording the water-quality <br /> indicator parameters if using a dedicated pump. Monitor and record parameters every three to five minutes. Stabilization for 3 <br /> consecutive measurements of pH, conductivity, ORP, DO, and turbidity is required before sampling. Do not sample from flow-through <br /> cell. <br /> Equipment Model Serial # Date Date Calibrated <br /> Received/Serviced <br /> Bladder Pump QED MP-SP with MP-10/15 controller E 38355 12/19/18 N/A <br /> Multimeter YSI PRO DSS 17M100630 8/10/2021 3 _ [7 <br /> f <br /> I <br /> i <br /> Pump...and...FjpW Cell Volume................................................................. �...._......=......._5. . .....__. ..._m......_....., <br /> Pumping System Volume Calculation <br /> Tubing Inside Diameter D = 0.17 in. Pumping System Volume (Vs) <br /> ......................... ......_......... ....._........................................................................................................ ............................_ ...............................: <br /> TubingLength L +�. Vs = VP + 7 * Dz 1b.39 ml/ins <br /> -- _ . .- ._____....... _......._.._._.._..._... ...__. <br /> 697 <br /> Conversion from Inches' to ml 1 in' = 16.39 ml. ' 7 Z gq2 Vs = ( 595 ) + (3.1415 * 0.17z/ 4) * ( 3 zO ) * 16.39 <br /> Purging Data Water Quality Parameters (within range for 3 consecutive readings) <br /> .......................__._..._.._.......__..............._..._..._.............—_...__._..........___........._...._.—........_.__..__..._.___...._..._..........._......._.___....._.,....._—•—.--..._..._—•--.._...._......_.__. ._..__..-..._....__...__......_.._........€...._.........____....._............-_._2_.........._.....«»»«......._ ....__...............-.....__ <br /> Time Pure Flow j Temp ` Conductivity DO ! H ORP Turbidity <br /> Volume ! Rate I Water I (°C} (µS/cm) (mg/L) P (MV) (NTU) <br /> (24 hr) ml ml min E Level <br /> ( / } t10%or <br /> I Stabilization ���: t 3% t 0.2mg/L t 0.2 ± 20mV <br /> c10NTU <br /> Initial ` 2c� z "1- �� J�. 6 3 N �7. 2p N 1� ' /V� <br /> [ r.................. ..................................................... �..---......................... �.... _ <br /> I q1. 3 ( q3 <br /> 1�o i = � � [ � - t 7 �- - <br /> _ ____.............:-_..._-----------......._..__...--- -...._----_.._ ._.................................. 1 ...._..__.......__.._..__...._........__ ...._ . <br /> G i I -3y € I. 5 I = 2- 7, k7- l �, 7 1 935` 7. n <br /> s <br /> 7 <br /> 1� -37 1,Z6- 1 27-b� - J �3 � 7.2- 3 <br /> I I <br /> .............._ .._... _ __. ...— _ _ .._..._............_._.............___ ..._........._ ......_.................. .............._ _._........._._................_..- - `� �� <br /> 1 r p 1 3 z 7 5� 1 q, 4,37 ...._.. ....... Z 3 i L/N.'...... . . <br /> I <br /> -- --- -� J _..__...,_.._ ................ <br /> _.. ..,_.... _.._.. ;—....__..__..__......_............__.... _..._......._.. __----- 1__-_-.._...__._..-..-..,__......_.. ..,-. ,. _.� <br /> i { 7 <br /> ............___..•.....•.........•...... .......•......... <br /> ..w•....w. ...«».w._.• . ...................-..............-.............._..•.�..p.•.•�..--......_. ;._......................_..................^M..................—............._..........w•.....�.. _..........._.._.._.......__...._.. <br /> ............ ...................... ........... <br /> .. <br /> I <br /> _... ............ <br /> j � I <br /> i <br /> 1 <br /> E <br /> k <br /> : S <br /> t <br /> i E <br /> E ' <br /> ' <br /> i e <br /> __......._..._._....._..— E <br /> Remarks: Bladder pump used for both purging and sampling. <br /> ..........................................,_........... <br /> ..,....._ ...._..._ —. ._ .......... r _ ,. <br /> S �e� 01fi a y z <br /> . <br /> v��or'f......... 01, . E <br /> «� Based on EPA low-flow sampling guidelines. <br /> ....-------------..................... -..-_-_............ _- .._........•......_.......__-..._. -___.—_............_......_....._..._........_................_....................................—_.._--_.,...__.....___.._.._......._..._..-____.._....._........___...............--....................-'--.................--...-_.........................................._. <br /> Signature: Checked By: <br /> Modified 3/16/2023 Page of <br />