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Project: Well Number: <br /> " in Tracy, CA ! y <br /> i <br /> Job #/Description: Prepared By: Purging/Sampling <br /> 2 & 4 Monitoring Well ! ' Date: <br /> QED MP-SP Bladder Pump I BRU 3 I i z3/ 7 / <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 1 QED MP-5P with MP-10/15 controller i 38355 <br /> --� 12/19/18 — <br /> N/A <br /> --•---_....................._.._.... <br /> Multimeter I Y5I PRO D55 17M100630 i 8/10/2021 <br /> Pump and Flow Cell Volum.......... __•__--�1 _...I------ <br /> Tubing <br /> Inside Diameter — D = 0.17 in. Pumping System Volume (VS) <br /> _._..._....................______-___...____. <br /> Tubing Length L = �� trf Vs = Vp + 7z * D2/ 4 * L * 16.39 ml/in3 <br /> �._..-- -........................................................................_................_...._I or,2 6 s <br /> Conversion from Inches3 to ml 1 in' - 16.39 MI. 1 715s3 V, = ( 595 ) + (3.1415 * 0.172/ 4) * ( 3 a } * 16.39 <br /> Purging Data Water Quality Parameters (within range for 3 consecutive readings) <br /> ......................................:_........._............................__._._:_...............................__;_ - - - -. ........................................ ............._............................................................:................................................... ............................................ _............ _................................_...._....... <br /> I g Flow Temp Conductivity DO pH ORP I Turbidity <br /> Time Pure Water (1)Q (Ps/cm) (mg/l_) (mv) I (Nru) <br /> Volume Rate <br /> (24 hr) I (ml) (ml/min) Level Stabilization cl): € t 3% t 0.2nng/L 0.2 t 20rpV t10% or <br /> <14NTU <br /> Initial 5'D I g 12 3 Al f�-- ?. 7 L �- /V. �t 7 <br /> _....,._.._.__..._...._ ........................................ .. .. ____._...--------_---------------•-- - ....................................__... --_...._...._.._..----........... _.__...._.........................._.. _...------------ -.-................... <br /> 151 <br /> .............. <br /> ! <br /> .._. <br /> IZ� S <br /> .................... .....___ .......... ._.._.... <br /> �_. _.!_. <br /> .............................................._.................... -------- ......._.._......W_ w� �...---.._--.-__.... .._........................................._.._...._..................._..._ ...... —_._.._.- _................................................... <br /> _ ,.._. - _ _ ._..........._.... .— ._�._.._.. _ ! ---... ............................................... ......... <br /> ............................................!.•----•.._.....__..........___�i ..••i.... ....�.........._..__. <br /> - 1 <br /> I4 ' 333. 75 2I= YL 7g1# 12br �o <br /> ............................ -_ __..._....,,.,,.__......................... _.._......_.................. <br /> -. _..._. .,.W................. <br /> : <br /> I I i <br /> - -----..._._........_......__..._ _._._...__.........._. -- ..._........ __ _ _ ._._.._..._ __......_— �._. ._..........� <br /> __._.........._ _.... ___. .._...—....._.................. <br /> r....,.,.., _...__.... _._...___._..._.._._._ LLL <br /> _.................. _-.-_ ..---....------- - -- .. _................................__ <br /> i <br /> ! � I <br /> _�_._.... . i - +-- --------_ - - ......--------- <br /> ........... <br /> ...._.._.._.. <br /> __...................._............. ........... <br /> .. --- — _- ---- _ .......... ........... _ ..._..__....... _ __......._..__...._..... <br /> Remarks: Bladder pump used for both purging and sampling. <br /> v �Va. 2 fi: <br /> .,�.�.�. . le i-_ ) ` �3(o�..... —_ __... _......_ -... . .......__..-------------------------.__�_ .... _....------.-...._.......__..._-.........................._............................................._........... <br /> . ..__..........._.... ___........._.._....- ----.._..__...------.._................. __ ._ ____.... .,_., ._...- ____ _..........__.._................................................................_...................._....._......._..._... <br /> Based on EPA low-flow sampling guidelines. <br /> .................................................................................................................................................................................................................................................................................._..__ ._,__.._......_..__..........._...... --._..__....__...__. _ _..___.._.._....__...........w..­_..._.._.......-..................................__............. <br /> .._.._...... <br /> Signature: — Checked By: <br /> Modified 3/16/2023 Page of <br />