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/- <br />.. ~~~ <br />/ Page 2 <br />~ Jim Berron <br />July 31, 1980 <br />5) Water infiltrating into the sub-main being advanced should be channeled <br />in such a way that it can be continuously monitored. Monitoring should <br />begin as excavation is initiated, and should continue until equilibrium <br />flow has been achieved. <br />6) The rock quality parameters (fracturing, faulting, water content of <br />fractures, etc.) should be continuously monitored and mapped as the <br />sub-main is advanced. <br />7) Following the completion of the initial sub-mainand appropriate period <br />to allow equilibration of surface/groundwater hydrologic relationships, <br />the additional sub-mains may be advanced upon the receipt of approval <br />of the Division. (I anticipate a delay of no longer than two to three <br />weeks for equilibration of these systems.) <br />'" 8) If a problem were to manifest iEself, Northern Cnal Company would then <br />be required to develop and implement appropriate remedial programs <br />before extraction of the additional sub-mains could be approved by <br />the Division. <br />JP <br />/k <br />CC: F. Banta <br />R. Mills <br />