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3. PERSONNEL REQUIRED AND RESPONSIBILITIES Project Manager: The Project Manager(PM) is responsible for ensuring that field personnel have been trained in the use of these procedures and for verifying that the development procedures are performed in compliance with this SOP. At a minimum, the PM will maintain contact with the client or contractor involved, will be available by phone during the field activities and will review field notes for completeness. Field Geologist/Field Engineer/Sojl Scientist/Technician: The Feld staff person assigned to the project is responsible for complying with this SOP. Responsibilities include: preparation for field activities, ensuring equipment is in working order and clean prior to the field event, providing adequate field documentation of events, observations, readings, measurements, volume of water, and overall development activities. 4. EQUIPMENT REQUIRED • Tool Box • Disposable gloves • Decontamination supplies • Water Level Meter/tape and paste/other device • Measuring tape • Indelible marker/Drum labels • Surge Block • Development pump and hoses OR bailers and line • Several 5-gallon buckets with 1 gallon increments noted • 55-gallon drums or other water storage facility • Well Development Forms 5. PROCEDURE After completion of monitoring well installation, and no sooner than 48 hours following emplacement of the well seals, the well shall be developed as described below. Prior to insertion in any well, all equipment will either be decontaminated or will be deemed clean, or previously unused, by the manufacturer. • Open all monitoring wells at the site and allow to equilibrate approximately 15 minutes. Denote time and visual observations regarding well access, condition, security, etc. in logbook. • Obtain initial depth to groundwater level readings from the point of survey mark, or from the North side of the top of the PVC casing, if not point of survey mark is present. Readings will be measured to the nearest 0.01 foot. Denote time and readings inlogbook and on forms provided. • Obtain depth to casing bottom for each well. Readings will be measured to the nearest 0.01 foot. Denote readings in logbook, and compare with boring log information. • Calculate the volume of standing water in each monitoring well. Denote the volume calculated for each well in logbook and/or on forms provided. • Alternate surging/swabbing of the screened interval and purging of the water: — Surging/Swabbing: Using either a surge block, the purge pump, or a heavy bailer, swab the screened portion of the well by lowering the surge equipment to the bottom of the well, rapidly raising and lowering the equipment in 2-foot intervals in a plunger-like fashion. This GHD SOP MW Install&Dev 5 of 6 Rev 2/14