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Project: Well Number: <br /> t1 in Tracy, CA <br /> Job #/Description: Prepared By: Purging/Sampling <br /> 2 & 4" Monitoring Well : Date: <br /> QED MP-SP Bladder Pump j I BRU F 3 L3 <br /> I 7 I <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 /> Date <br /> Equipment Model <br /> Serial # Received/Serviced Date Calibrated <br /> Bladder Pump I QED MP-SP with MP-10/15 controller 1 38355 12/19/18 N/A <br /> .........................................._...._,. ,.._.__» .. __......_...................__.._._.................__...._.._...._...-_.....__..._._.... -- ___._.. _.....--------......__._.........,..._.,...._.,.....« .__ __........ ..__...--................._........._._---- <br /> Muitimeter YST PRO D55 17M100630 8/10/2021 —17-23 <br /> ..................._. <br /> f E I <br /> Pump.and Flow Cell-Volume _..._..._. _��. =...... .9. .........__._.................. mi. i Pumping System Volume Calculation <br /> ._..---...-_...,� <br /> Tubing Inside Diameter D = 0.17 in. Pumping System Volume (VS) <br /> -_..»._ . <br /> Tubing Length L = �5 .in, VS = VP + 71 * D2/ 4 * L * 16.39 ml/in3 <br /> I- <br /> ,...............,«.,«, M»»....»«.. .««....«.._............._.....__............................................................._ ................................_.........,,__,. ,._ <br /> .,...�._._...._._.. �YD..�Z .viz. c� 7 <br /> Conversion from Inches3 to ml € 1 in3 = 16.39 ml. E Vs = ( 595 ) + (3.1415 * 0.172/ 4) * ( ) * 16.39 <br /> Purging Data Water Quality Parameters (within range for 3 consecutive readings) <br /> .....__._..........................................._....---._................--- _- ..., .«_,_....«_ «_. __ ; <br /> a.._ _ _........... _ ....._......._...__...------.....--- ---_ _._..._....._..........._ _ .—_...... _ ___........... __._,-_.._._.....µ..............._. <br /> Time € Purge ! Flow Water Temp a Conductivity DO pH ORP Turbidity - <br /> (24 hr) Volume Rate Level (�C) (µ5/cm) (mg/L) (mv) (►vru) <br /> (ml) I (ml/min) ` cl}. o ±10%or <br /> Stabilization t 3 /o t 0.2mg/L t 0.2 t 20mV <10NTU <br /> 7 Z°� ` Initial Z.SO f Z '�, i •---�$:__. .... ....--._._ 3 Z f �4 Z Z f 4 <br /> ................._....._.._..__.... _. { ,�1 <br /> ________ «« «. € i_r_..--._-._..._......__... _. _._ ---._...._.._ 7 ._....._._�. .1 <br /> 17�3z 7Sd I � 11. cl � IF.s l.393 I � I <br /> .............I....._,...................._ _......�....._......_. ........ .................. <br /> _ <br /> . �,__......__-_..___-+__�_.w -..._.---- m___._..__ __ E __...__.......__� _ . -�-----.....__._.._..._ -.__€ <br /> 2 7- �.� I $. 4 3 �-.._...__........- ...- _.�.z 7 <br /> _..___........- .............__.» ........» .. ...._�,�__._..._ _ ._.._.... <br /> i <br /> ff��. �1 _ __ .. :........... <br /> ......._...........,__............. i _.,................. .. }..._ ....._..._.._._._.......... ................. <br /> IF <br /> 'I J € <br /> 's <br /> 17 '3 7 4 �Z j �. /3� 3 7. Z_ <br /> I <br /> ........_._.........................__...--_................... _. _ . ;..«_.._..__.....,'.,,....._— 4 <br /> ..........................................—I ....««.«..«.««....... E _..........._......._...._...i..,..._....,_...,..__.__....._.......'..... .,.�„„_.._.... <br /> ........_.........._.........._.._...�E .._......_....._..__......_ ......................... .»» ..-_-------- .......»..... <br /> .......... <br /> .... <br /> ,.,.,.,... <br /> : <br /> E <br /> i <br /> I i ! <br /> ...._..._._................._._.;- ...—_....,«««...»-.....«.}..»............. <br /> ........ <br /> .....__..-..——_.__.._.............__—,•—•_...1__«..««».».».«.»..»»......---.._.—._.—.__'—__—___.._.._.._._. _._..._................._,..._......... .....____...._,,..,__'_•-_— ..___._- .............. <br /> E <br /> ........._.......................... ......_.__ _ ._._.....,...__.. <br /> i � ! <br /> Remarks: Bladder pump used for both purging and sampling. <br /> _.-.«..........._.................... »,..» ».» _.....«__............................._..........._........_.....____..._ ......_....__...-.....-._ . - - —_ __— _ _ _ ._............._...................................--.........---....,........................m...._......_.......... <br /> ..�-�P ram.r7................afi - ► r �. —-------------- - __..._.__._._..._,_,_.r_ _ ._..._........._.......----._,,.__-.__.-.-__.....__............. <br /> _.«....._...__.....__...._ <br /> psi <br /> Based on EPA iow-flow sampling guidelines. <br /> Signature: Checked By: <br /> Modified 3/16/2023 Page of <br />