ML20096F235

Brief Aerial Photography Analysis of River Bend Station at St Francisville,LA:1994-1995

ML20096F235
Person / Time
Site:	River Bend
Issue date:	11/30/1995
From:	AFFILIATION NOT ASSIGNED
To:
Shared Package
ML20096F225	List: ML20096F215 ML20096F235
References
95-2288.01, 95-2288.01-01, 95-2288.01-1, NUDOCS 9601230279
Download: ML20096F235 (7)

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.g ENCLOSURE 1 PHOTOINTERPRETATION REPORT (AERO-DATA CORPORATION 95-2288.01)

A BRIEF AERIAL PHOTOGRAPHY ANALYSIS '

OF RIVER BEND STATION AT ST. FRANCISVILLE, LOUISlANA:

1994-1995 BY:

Aero-Data Corporation 9213 Interline Avenue Baton Rouge, LA 70809-1908 Phone: (504) 927-5725 Submitted to:

Entergy Operations, Inc.

River Bend Station P.O. Box 220 St. Francisville, LA 70775 November 1995 PRIVILEGED AND CONFIDENTIAL PAGE 9 9601230279 960109 PDR ADOCK 05000458 P pgg

I TABLE OF CONTENTS 1.0 EXECUTIVE

SUMMARY

I 1.1 METHODS AND MATERIALS 1.2

SUMMARY

OF PRELIMINARY FINDINGS APPENDIX A - Photo inventory l

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1.0 Executive Summary Aero Data Corporation (ADC) has contracted with the Entergy River Bend Station to conduct a photo mission covering at least a two mile radius around the facility near St. Francisville, Louisiana. ADC has been providing annual plant site documentation of the facility since 1985.

This year ADC was requested to produce photographs of the facility, but not a photomosaic. The current photography was compared to the previous years photography in order to identify any changes in the number of wellheads and/or pipelines surrounding the site. Changes in vegetation within the facility boundary were also identified.

The deliverables for this project include contact prints of each frame (24), a color plot showing the 1994-1995 changes, a color plot containing the frame center for each of the photographs from the current flight, and this interpretation report.

1.1 Methods and Materials The current photo mission was flown on October 6,1995 at a scale of 1"=1,500' using false color infrared (CIR) film. The frame centers of the 1995 photographic coverage are very similar to those flown by ADC for Gulf States Utilities /Entergy in 1993 and 1994. The previous photo mission was flown on November 6,1994 also at a scale of 1"=1,500' and I

using CIR film. ADC's flight planning wac simplified with the use of a Geographic Information System (GIS) softwe.re package which aided in the alignment of the flight lines. Using this system, four flightlines were selected and 24 frames of film were shot for this photo mission.

Navigation was by our GPS navigation and moving map equipment.

Contact prints for the current photomission were produced at a scale of 1"=1,500'. The prints for the current and 1994 dates were analyzed on a large mirror stereoscope for change detection. It should be noted that there is a slight difference in color balance between the prints of the 1995 photomission and the previous photomissions. The vegetation in the 1995 photography appears more purple than in the previous years photography. This change in color is due to the new state-of-the art Zeiss RMK/ TOP camera that ADC has recently acquired.

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The change map of the River Bend facility was produced using a Geographic Information System. The GIS incorporated computer scanned imagery of the 1994 and 1995 photo missions as well as digitized vector data.

Comparison of the current photography with the 1994 photography by photointerpretation revealed no new changes regarding pipelines or However, this wellheads. Some ground vegetation removal was detected.

removal of vegetation appears to be a result of the construction activities located just north of the substation. l

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ADC also constructed a map showing the frame centers, frame numbers, and latitude / longitude coordinates of each frame. This map was created from 1990 TIGER digital line data acquired from the U.S. Department of Commerce, Bureau of the Census in CD-ROM format. The Tiger data is useful for reference purposes, supplementing the outdated U.S. Geological Survey 7.5 minute quadrangle map data available for the area of interest (the Port Hudson quad map was last updated in 1980; the St. Francisville quad in 1972). In terms of accuracy, the scale of TIGER data is 1:100,000 and may be anywhere from 50 to 140 feet off; whereas the 7.5 minute quads have a scals of 1:24,000 and may be up to 40 feet off.

Aero-Data can map the area from the current photography and produce a current map which will surpass the accuracy of USGS quadrangle sheets should it be requested. The above referenced map should be used to select the specific frames which provide coverage within the site area.

1.2 Summary of Preliminary Findings No changes in the number or size of wellheads, pipelines or transmission line right-of-ways were identified during the interpretive phase of this project. There are no significant changes in vegetation in the area immediately surrounding the cooling towers. The vegetation in the area surrounding the cooling towers has not changed significantly in the last 4 years. Some construction activities are visible to the north of the substation. This construction appears to be a sewage / water treatment facility As a result of this construction, vegetation has been removed in this immediate area.

Aside from this construction, the area surrounding the Entergy River Bend facility has not changed significantly since the 1994 photomission.

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- Appendix A: Photo inventory i

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~ Gas aan taana .2ama mana n.a. mann a n. Issa an. san-. em h am, as sma.a Lamanian Oct 000 1 5 2/13/08 15840 CR GSU fUverbend 103 5 Ebn Park, Port Hudson Oct 000 10 18 2/13/98 18840 CR GSU fuverbend 103 8 Ebn Park, Port Hudson DOS 000 19 23 2/13/08 15840 CR GSU fWwerbond 103 S Ebn Park, Port Hudeon 000 000 29 34 2/13/08 15440 CR G 00 fWverbend 103 8 Ebn Park, Port Hudson 000 000 73 79 3/10/08 15440 Color G8U fWyerband 103 7 Ebn Park, Port Hudson i

Cut A G 10/29/90 Color Gau IWyerbond . 0700 Ebn Park, Port Hudson 357 91029 69 87 10/11/91 16840 CR G8U ftverbond 1079 9 Ebn Park, Port Hudson 357 91040 11/10/91 16840 CR G8U FWwerbend 103 Ebn Park, Port Hudson i 357 92043 2706 2716 9/30/92 10000 CIR G8U PWyerbond 1992 11 Ebn Park, Port Hudson 357 92043 2720 2724 9/30/92 18000 CR GsV puyerbend 1302 5 Ebn Park, Port Hudson 387 92043- 2727 2736 9/30/92 18000 CR GSU FWyerbend - 1392 9 Ebn Park, Port Hudson 357 92043 2746 2752 9/30/92 14000 CR GSU Ftverbend 1392 7 Ebn Park, Port Hudson 357 93041 4571 4678 9/30/93 18000 CR GSU fuverbend 1791 8 Ebn Park, Port Hudson 337 93041 4679 4607 9/30/93 18000 CR GSU fWverbend 1791 9 Ebn Park, Port Hudson 357 93041 4688 4695 9/30/93 18000 CR G80 fWyerbond 1791 4 Ebn Park, Port Hudson 357 93041 4696 4604 9/30/93 18000 CR GSU Ftverbond 1791 9 Ebn Park, Port Hudson 357 94034 1627 1632 11/6/94 10000 CR FWworbend Erder9y 2208 9 Ebn Park, Port Hudson 337 94034 1833 1640 11/4/94 18000 CR PWworbend, Etter9y 2288 8 Ebn Park, Port Hudeon 357 94034 1641 1648 11/6/94 18000 CR FWverbend, Erder9y 2288 8 Ebn Park, Port Hudson .

3s7 94034 1649 1680 11/s/94 18000 CR FWworbend, Ereorgy 2288 12 Ebn Park, Port Hudson

-443 96037 0970 1004 10/tW96 18000 CR Riverbend, Erser9y 2288.01 38 Ebn Park, Port Hudson

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p Entergy River-Bend Station 1995 Change Map A 6;

Legend ENTERGY Boundary (Approximate)- --- i visiur l cesser Existing Suuctures - l ,

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