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Project: Well Number: <br /> t� in Tracy, CA <br /> Z & 4" Monitoring Well Job #/Description: 3 Prepared By: Purging/Sampling <br /> Date: <br /> QED MP-SP Bladder Pump i BRU <br /> 3 <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 /> I Date Equipment ; Model Serial # Date Calibrated <br /> Received/Serviced <br /> Bladder Pump QED MP-SP with MP-10/15 controller <br /> . 38355 <br /> 19/18 N/A <br /> ................................_ �.........__...._ ...........................___.............................._...._..... ........•_........................_� ----..__..._.........-.. _---.._.... _......W__.._........ <br /> Multimeter YST PRO D55 I 17M100630 ; 8/10/2021 3 - 7- 2-3 <br /> F; <br /> 1 <br /> Pump and Flow..Cell Volume - _ -- _».«.. _......._Un._.-_....=.......595_,___--,,.,,...__. .m Pumping System Volume Calculation <br /> Tubing Inside_Diameter <br /> = 0.17 m. , Pumping System Volume (VS) <br /> Tubing <br /> . th <br /> ..�en9 ._....... L =.... ._ .........._.... ......_m_--- - Vs = VP + n * Dz/ 4 * L * 16.39 ml/in3 <br /> ....._.._-..«..».._......._....—__!�_ —. _ .._.. <br /> Conversion from Inches3 E 3 728,9 *2 Jfa�7 <br /> to ml 1 in = 1639 MI. zvs = ( 595 ) + (3.1415 0.17 / 4) ( } 16.39 <br /> Purging Data <br /> 9 9 Water Quality Parameters (within range for 3 consecutive readings) <br /> .......................................»..............--.,_ . ..»..—_.... --__ ._.._......_...__._.___ <br /> Temp Conductivity DO I <br /> Purge Flow ( ORP Turbidity <br /> Time Volume Rate Water (°C) (uS/cm) (mg/�) pH (mv) (NTu} <br /> (24 hr) (ml) (mi/min) Level <br /> Stabilization (i): t 3% 0.2mg/L t 0.2 ± 20mV t1010/0 or <br /> Initial y�0 ; 2- 1, �(, � i - <1on1Tu <br /> 6 '33 € 7 <br /> S , <br /> i <br /> .......... : _ <br /> ; <br /> , <br /> ............... - - <br /> . r , <br /> e I <br /> .........--..._........�.......... _......_...._�_..__••—•---.»..»� -.E.__.._..____......_......«.....__.__"'—_....... ........_ —•.••.•.»...............___--_» -._..».».»»,.»..___.._.._... .»...».............»....___..__... .._------__---_..._.__.._...... <br /> ............... <br /> ... <br /> ................................... <br /> ...............» € E <br /> , <br /> i---•-•- a _..._. _ _..._...»....... ——---- <br /> ......... .. .._. .__.. <br /> ............_............... <br /> ._..._.» <br /> � I = i <br /> ; <br /> f <br /> E F <br /> Remarks: Bladder pump used for both purging and sampling. <br /> ............ <br /> ....... <br /> .... <br /> ---..._......... <br /> .....__.._.__..-•----------------- <br /> __..._........ <br /> .-_.-... _ __....._ -------- _..... -_..___.__................ <br /> _,..». ......_.........._._. <br /> (1) Based on EPA low-Flow sampling guidelines. <br /> .._ . ................ <br /> ........................................................... ....................._......._......... _..-_.- _._ _ <br /> .._........-_......___.._... __,-__—_�_ ..., __..... -_..__ _ T._._-- _— <br /> Signature: Checked By: <br /> Modified 3/16/2023 Page of <br />