Laserfiche WebLink
i <br /> ENVIRONMENTAL SCIENCE& ENGINEERING, INC, <br /> CONCORD,CALIFORNIA,OFFICE <br /> STANDARD OPERATING PROCEDURE NO.2 <br /> FOR MONITORING WELL INSTALLk7ION AND DEVELOPMENT 1 <br /> PAGE 2 <br /> F <br /> `technician will monitor the ground water 'purged from the well during development for { <br /> and condo city,temperature,pH <br /> ctivYty. Development of the well will proceed until the well produces relatively clear,sand-free water <br /> with stable tennperat u�e,pH and conductivity measurements. At a minimum, 10 well-rasing volumes of ground <br /> water will be removed during the development process. Measurements of temperature,conductivity,pH and <br /> volume of the purged water and observations of purge water clarity and sediment content will be recorded on <br /> the ESE Wen Development Data Forms,i All equipment used during the well development prooedure will be <br /> cleaned using an Alconox+detergent and";tap water solution followed by a tap water rinse prior to use in each <br /> well. All ground water purged during the well development proem and all equipment rinse water will be <br /> collected and contained onsite in DOT approved containers{(ypicallyS5-gallon drums)pending analytical results <br /> and proper disposal or recycling. <br /> i <br /> 4 <br /> r <br /> l <br /> E\yrs\�1� <br />