Simplified Digital Mapping of REMP Sampling

Locations

Ken SejkoraEntergy Nuclear Northeast – Pilgrim Station

Roger TolbertEntergy Nuclear South – Grand Gulf

Presented at the 12th Annual RETS-REMP WorkshopAtlantic City, NJ: 24-26 Jun 2002

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

It’s the right thing to do!

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?

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 ??

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

GPS Receiver Considerations Waypoint Storage: 500 typical Plot trail, “breadcrumbs”; number of

points Data port: link to PC Map Display: GPS displays where you’re at WAAS capability: Wide Area Augmentation

System… increase accuracy Software updateable – flash ROM No display – feed directly to mapping

program via serial port

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

Other Software & GPS Links Spreadsheets:

http://hps.ne.uiuc.edu/rets-remp/software.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/

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

Map TLD Locations

Land Use Census Track

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

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

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 everyone’s

house

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.

Zoom in and mark roof top using the software

• Zoom out to get big picture

• Include Sector lines as waypoints

Description Waypoint Comment Latitude Longitude DistanceToActivePoint BearingFSAR Centerline CENTER FSAR Centerline 32°00'27.0" -91°02'52.9" 0.0 cm 0.0°1020 Frazier Rd W006 Residence 32°01'15.4" -91°02'44.1" 1512.53 m 8.8°1022 Frazier Rd W005 Residence 32°01'08.5" -91°02'39.7" 1329.12 m 15.1°Unoccupied 2036 Frazier Rd W021 Residence 32°01'40.5" -91°02'18.0" 2.448 km 21.9°9160 Grand Gulf Road W004 GARDEN 32°00'53.0" -91°02'25.2" 1082.79 m 42.1°4008 Y-Camp W024 Residence 32°01'34.2" -91°00'35.8" 4.147 km 59.9°4004 Y-Camp Rd W026 Residence 32°01'32.8" -91°00'35.5" 4.132 km 60.5°8180 Grand Gulf Road W016 Residence 32°00'26.5" -91°01'59.1" 1408.76 m 90.5°1015 Glensdale Place W043 Residence 31°59'00.0" -90°59'06.0" 6.518 km 114.3°1170 Oil Mill Rd W042 Residence 31°58'17.4" -91°00'04.0" 5.963 km 132.1°4065 Bald Hill Rd W033 Residence 31°59'35.7" -91°02'21.4" 1.784 km 152.5° 6033 Rodney Rd W047 GARDEN 31°57'43.0" -91°02'33.6" 5.085 km 174.3°Jim Cassell Jr. 2044 Waterloo Rd W018 GARDEN 31°58'35.9" -91°03'32.8" 3.583 km 196.9°6043 Bald Hill Rd W031 GARDEN 31°59'51.6" -91°03'27.6" 1419.56 m 219.7°Unoccupied W050 UNOCCUPIED 32°01'59.7" -91°07'29.4" 7.779 km 291.6°11008 Grand Gulf Road W020 Residence 32°01'22.9" -91°03'09.3" 1.780 km 346.1°Grand Gulf State Park RV Area W009 Campground 32°01'41.2" -91°03'10.4" 2.338 km 348.7°Grand Gulf State Park Museum W010 Museum 32°01'49.2" -91°03'12.1" 2.588 km 348.8°Salem Church W011 Church 32°01'57.6" -91°03'07.0" 2.821 km 352.5°10190 Grand Gulf Rd W007 Residence 32°01'18.0" -91°02'59.2" 1584.65 m 354.0°

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

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

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

Bottom Line -- Cost Mapping Software

Desktop/Laptop mapping: $30-$100 GPS receiver-specific: $100-$200

GPS Receiver Non-data port: <$100-$200 Non-mapping, data port: $150-$250 Map display, data port: $250-$400

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