ML20059E874

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Forwards Fourteenth Quarterly Rept Cleveland Electric Illuminating Co Seismic Monitoring Network Jan-June 1990. Five Microevents Originating within Network & Three Other Events Originating Outside of Network Recorded
ML20059E874
Person / Time
Site: Perry FirstEnergy icon.png
Issue date: 09/05/1990
From: Lyster M
CENTERIOR ENERGY
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20059E878 List:
References
NUDOCS 9009100373
Download: ML20059E874 (2)


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4. PERRY NUCLEAR POWER PLANT 10 CENTER ROAD Mad Acyess:

P.O. BOX 97 Michael D. Lyster PERRY OHIO 44381 PERRY. OHIO 44081 %ce Presi0ent Nuclear (216)259 3737 September 5, 1990 PY-CE1/NRR-1215 L U.S. Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555 Perry Nuclear Power Plant Docket No. 50-440 Seismic Monitoring Report Number 14 Gentlement Enclosed for your information is Seismic Monitoring Report Number 14 for the CEI operated Micro-Net, which is monitoring an area in the vicinity of two waste injection wells located 3 miles south of the Perry Nuclear Plant site.

This report provides data and event analysis for the period betwaan January 1, 1990 and June 30, 1990. Since only one microevent was detected within the network aperture at the end of the let quarter 1990, it was decided to prepare a single report through June as enclosed. Appendix A of this report provides the volumetric data from the two Calhio (ICI America) injection walls for the same period.

Additionally, Appendix B of this report contains the findings of studies completed to assess the possible relationship between gas well production and induced seismicity in the vicinity of the CEI seismic network. This assessment of gas well influence provides additional information in our continuing effort to evaluate the nature of seismicity in the region. The results of this assessment attribute no definable influence of oil / gas operations on local seismicity, although it has occurred in other regions geologically similar.

Monitoring Results During this reporting period, five microevents originating eithin the network were recorded. Three other events, originating outside the network were also recorded, one of which occurred in Northwestern Ohio, near Fostoria (M =3.0).

Noneoftheseeventshavealteredourinterpretationsonlocalseismickty.

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USNRC S:ptorber 5, 1990 PY-CEI/NRR-1215-L Future Actions For the immediate future CEI plans to. continue operation of,the local network' '

and to complete ongoing analysis. When this analysis is complete and our i

assessment of the seismological activity concluded, we will provide a summary position and explore with the staf f network decommissioning or reduction.

i Since ,  ;

l Michael D. Ly er .

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Enclosure ,

cc NRR Project Manager ,

Sr. Resident Inspector NRC Region III R. Rothman 3

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