Preliminary results of hydrologic testing the composite middle sentinel bluffs basalt flow bottom at Borehole RRL-2 (3,247--3,344 feet)

Technical Report · Mon Nov 01 00:00:00 EST 1982

OSTI ID:5461799

Strait, S R; Spane, Jr, F A

This report presents preliminary results and description of hydrologic test activities for the composite Middle Sentinel Bluffs basalt flow bottom (3,247-3,344 feet) at Borehole RRL-2. Hydrologic tests conducted include one constant discharge air-lift and two slug tests. Preliminary results indicate an observed hydraulic head for the test interval of 405.5 feet above mean sea level. Transmissivity values determined from hydrologic tests performed range between 203 and 847 ft{sup 2}/day, with an assigned best estimate of 770 ft{sup 2} day. The best estimate of equivalent hydraulic conductivity, based on an effective test thickness of 77.5 feet, is 9.9 ft/day.

• Research Organization: Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
• Sponsoring Organization: DOE/RW
• DOE Contract Number: AC06-77RL01030
• OSTI ID: 5461799
• Report Number(s): RHO-BWI-TI-095; ON: TI90003466; TRN: 90-001202
• Country of Publication: United States
• Language: English

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