January 1991 monthly report : Scientific Observation Hole (SOH) Program geothermal resource permit : GRP 89-1 Lilewa, Kapoho, and Halekamahina, Hawaii TMK: 1-2-10:01; 1-4-01:02; and 1-4-02:32 

"This document presents a monthly report to the County of Hawaii Planning Department to support the scientific observation hole (SOHs) program in the Kilauea Middle and Lower East Rift Zone. ... This report addresses: occurrence and duration of any start-up, shut-down, and operation mode of any SOH/facility; performance testing, evaluation, calibration checks, and adjustments and maintenance of the continuous emission monitor(s) that have been installed; and emission measurements.