Simplified Digital Mapping of REMP Sampling Locations

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Simplified Digital Mapping of REMP Sampling
Locations

• Ken Sejkora
• Entergy Nuclear Northeast Pilgrim Station
• Roger Tolbert
• Entergy Nuclear South Grand Gulf
• Presented at the 12th Annual RETS-REMP Workshop
• Atlantic City, NJ 24-26 Jun 2002

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Why Have Good Maps?

• Required by NUREG-1301/1302, Branch Technical
  Position, Tech Specs, ODCM
• Makes determining distance and direction to
  sampling and receptor locations easier, plus more
  accurate
• Good augmentation to ODCM and Annual Reports
• Its the right thing to do!

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Key Elements to Software-based Mapping

• Mapping software
• What are your needs?
• How do you intend to use it?
• Stand-alone, or augment with GPS?
• GPS receiver
• Accuracy with portability!
• Features bells and whistles
• Use with mapping software?

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Mapping Software Considerations

• Map datum used as basis
• GPS capability of software
• Real-time plotting of GPS output
• Storage download of waypoints, trails
• Printing capability
• Map save/export capability ODCM, reports
• Drawing function to overlay compass rose, icons
• Operating platform Windows vs. Mac
• USA coverage good, Canada/foreign ??

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Mapping Software Selection

• Delorme Street Atlas
• Delorme Topo USA
• Rand McNally StreetFinder
• Microsoft MapPoint
• Microsoft Streets
• GPS receiver-specific maps

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GPS Receiver Considerations

• Waypoint Storage 500 typical
• Plot trail, breadcrumbs number of points
• Data port link to PC
• Map Display GPS displays where youre at
• WAAS capability Wide Area Augmentation System
  increase accuracy
• Software updateable flash ROM
• No display feed directly to mapping program via
  serial port

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GPS Receiver Selection

• Garmin http//www.garmin.com/outdoor/
• Magellan http//www.magellangps.com/
• Trimble http//www.trimble.com/producttypes.html
  
• Lowrance http//www.lowrance.com/Outdoor/default
  .asp
• Palm-Pilot PDA add-on
• Direct-feed, no display Delorme Earthmate
  http//www.delorme.com/earthmate/default.asp

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Other Software GPS Links

• Spreadsheets http//hps.ne.uiuc.edu/rets-remp/so
  ftware.htm
• Distance Direction
• Compass Rose
• ExpertGPS http//www.expertgps.com/
• G7TOWIN http//home.attbi.com/g7towin/
• NMEAgent http//www.iliketheinternet.com/gps.html
  
• SAWatch http//www.huntting.com/sawatch/
• Others/Links http//www.joe.mehaffey.com/

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Applications

• Real-time tracking land use census
• Waypoint storage nearest resident, farm,
  garden, milk animal, REMP sampling locations,
  TLDs
• Accurate distance and direction/sector for
  X/Q,D/Q calcs, dose calcs, etc.
• Aerial map interface ExpertGPS software, cursor
  LAT/LON

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Map TLD Locations
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Land Use Census Track
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Grand Gulf Nuclear Station2001 Land Use Census

• Why use GPS and GPS Software
• Validate distances to current locations
• Validate correct sectors are used
• Obtain accurate distances to new locations
• Determine if any hard-to-reach areas may need
  investigating

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Grand Gulf Nuclear Station2001 Land Use Census

• Used TopoGrafix ExpertGPS software
• Aerial view maps from Microsoft TerraServer
• Topographic Maps from USGS
• Garmin Etrex Vista GPS
• County 911 Services for addresses
• Door to door survey

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Grand Gulf Nuclear Station2001 Land Use Census

• Other Uses
• Site overview for NPDES permitting
• Verification of Site Boundary
• Assist in locating new sample locations
• TLD location mapping and distances
• Providing aerial views for everyones house

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Grand Gulf Nuclear Station2001 Land Use Census

• Methods
• Zoom in and mark the roof top as a waypoint at
  your desk, then upload the waypoints to GPS to
  verify in the field
• Or
• Go to the field, mark the location on the GPS,
  and then download to Software to verify.

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Zoom in and mark roof top using the software
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• Zoom out to get big picture
• Include Sector lines as waypoints

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Data can be sorted by bearing or distance and
printed or exported to spreadsheet.
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Concerns

• Map datum used for basis
• Local maps may not have good pedigree
• Plant maps pedigree? State plane?
• USGS Topo Quads many NAD27, some converted to
  NAD83/WGS84
• Software maps most NAD83, some NAD27, ??
• Coordinate conversion software? It is available.
• Poor satellite coverage greater uncertainty on
  position address by using location averaging

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Concerns

• Might discover your REMP locations are not where
  you thought they were need to relocate to cover
  the sector, distance, etc.?
• Keep from historical perspective?
• Move to desired location? to move
• Add additional location? to collect and
  analyze more samples

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Bottom Line -- Cost

• Mapping Software
• Desktop/Laptop mapping 30-100
• GPS receiver-specific 100-200
• GPS Receiver
• Non-data port
• Non-mapping, data port 150-250
• Map display, data port 250-400

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Summary/Benefits

• Readily available K-Mart, Wal-Mart, computer
  stores, mail order, web
• Relatively low cost 200 for GPS receiver and
  software
• Easy to use point-and-click
• Powerful, robust better than map-and-ruler,
  cut-and-paste
• Accurate 20 meter easily achievable Selective
  Availability off since 01-May-2000