WORK PLANS - Laserfiche WebLink

Home Browse Search

Aquifer Testing Standard Operating Procedure SWE-FSOP-500,•Revision 0 Ahtna Southwest Environmental Operations • The project geologist or designee will determine when the mechanical pump should be shut down as specified in the project work plans and based on a review of the field-generated drawdown versus time plots from the pumping and observation wells. • Once the pumping phase is completed, re-set the data loggers for the recovery period, recording duration, and frequencies as specified in the project work plans. Obtain a water level measurement in each of the wells with the electric well tape and record the measurements and times. Shut down the mechanical pump. Record the time that the pump was shut down on the appropriate form. • Continue to record the water level recovery in the wells with the pressure transducers and data loggers as long as is required by the project work plans or until the water levels have recovered to within 90 percent of the level expected from the pre-test trends. Also, continue to take physical water level measurements periodically during recovery. Once the recovery period is ended, take a physical water level measurement in each well at the end of the test. Enter the measurements and times on the appropriate form. • The project work plans may require additional depth to water measurements to be physically taken following complete well recovery to monitor post-test trends in water level. The project work plans will specify the frequency of measurements and the time that the measurements must be taken. • The data should be reviewed in the field to help ensure the validity of the test. Complete all documentation on the appropriate form as outlined in the project work plans. • Once the wells' pumping test is satisfactorily completed, all downhole equipment may be removed and the wellheads secured. 4.5 Document Control Aquifer testing field forms should be completed in their entirety. If an entry is not applicable, indicate It (not applicable) or line-out. After a task or project,all field documentation, including the field logbook,field datasheets,and electronic data, shall be scanned and placed on the server in the appropriate folder. All original documents shall be submitted to the PL and kept in the project file. See SWE-FSOP-001 (Field Documentation). 5.0 Quality Assurance/Quality Control Conduct the 3-Phases of Quality Control method described in the project work plans. 6.0 Documentation Review The FTL is responsible for the daily review of the fieldwork documentation for compliance with requirements (Section 4.0 "Procedures") and legibility. Errors and omissions should be explained, and revisions to an entry should be signed and dated by the FTL. 7.0 References None cited. Page 17 of 17