1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 HV2341 *********************************************************************** HV2341 DESIGNATION - 1629 WSSC HV2341 PID - HV2341 HV2341 STATE/COUNTY- MD/MONTGOMERY HV2341 USGS QUAD - WASHINGTON WEST (1983) HV2341 HV2341 *CURRENT SURVEY CONTROL HV2341 ___________________________________________________________________ HV2341* NAD 83(1986)- 38 58 49. (N) 077 01 01. (W) SCALED HV2341* NAVD 88 - 77.421 (meters) 254.01 (feet) ADJUSTED HV2341 ___________________________________________________________________ HV2341 GEOID HEIGHT- -31.97 (meters) GEOID03 HV2341 DYNAMIC HT - 77.379 (meters) 253.87 (feet) COMP HV2341 MODELED GRAV- 980,090.5 (mgal) NAVD 88 HV2341 HV2341 VERT ORDER - SECOND CLASS 0 HV2341 HV2341.The horizontal coordinates were scaled from a topographic map and have HV2341.an estimated accuracy of +/- 6 seconds. HV2341 HV2341.The orthometric height was determined by differential leveling HV2341.and adjusted by the National Geodetic Survey in June 1991. HV2341 HV2341.The geoid height was determined by GEOID03. HV2341 HV2341.The dynamic height is computed by dividing the NAVD 88 HV2341.geopotential number by the normal gravity value computed on the HV2341.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 HV2341.degrees latitude (g = 980.6199 gals.). HV2341 HV2341.The modeled gravity was interpolated from observed gravity values. HV2341 HV2341; North East Units Estimated Accuracy HV2341;SPC MD - 145,820. 398,530. MT (+/- 180 meters Scaled) HV2341 HV2341 SUPERSEDED SURVEY CONTROL HV2341 HV2341 NGVD 29 (??/??/??) 77.635 (m) 254.71 (f) ADJUSTED 2 0 HV2341 HV2341.Superseded values are not recommended for survey control. HV2341.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HV2341.See file dsdata.txt to determine how the superseded data were derived. HV2341 HV2341_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ252165(NAD 83) HV2341_MARKER: DD = SURVEY DISK HV2341_SETTING: 36 = SET IN A MASSIVE STRUCTURE HV2341_SP_SET: BRIDGE WALL HV2341_STAMPING: 1629 HV2341_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL HV2341_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR HV2341+SATELLITE: SATELLITE OBSERVATIONS - March 20, 2004 HV2341 HV2341 HISTORY - Date Condition Report By HV2341 HISTORY - UNK MONUMENTED WSSC HV2341 HISTORY - 1951 GOOD CGS HV2341 HISTORY - 20040320 GOOD GEOCAC HV2341 HV2341 STATION DESCRIPTION HV2341 HV2341'DESCRIBED BY COAST AND GEODETIC SURVEY 1951 HV2341'AT TAKOMA PARK. HV2341'AT TAKOMA PARK, MONTGOMERY COUNTY, 0.2 MILE NORTHEAST ALONG PINEY HV2341'BRANCH ROAD FROM THE DISTRICT LINE, ON THE SOUTHEAST SIDE OF HV2341'PINEY BRANCH ROAD, ABOUT 20 FEET SOUTH OF A SMALL STREAM, AND HV2341'ON A LEDGE OUTSIDE THE PARAPET WALL OR RAILING OF A CONCRETE HV2341'BRIDGE. A WASHINGTON SUBURBAN SANITARY DISTRICY BRONZE DISK, HV2341'STAMPED 1629. HV2341 HV2341 STATION RECOVERY (2004) HV2341 HV2341'RECOVERY NOTE BY GEOCACHING 2004 (APC) HV2341'STATION LOCATED ON THE CONCRETE BASE OUTSIDE OF THE RAILING IN THE HV2341'FIFTH SECTION FROM THE SOUTHWEST END OF THE BRIDGE, AND APPROXIMATELY HV2341'36 FEET SOUTH OF PEPCO POLE ..417-1878 (FIRST DIGITS COVERED OVER). HV2341'THE DISK IS LOCATED DIRECTLY ACROSS THE STREET FROM AND ABOUT 25 FEET HV2341'SOUTHEAST OF A FIRE HYDRANT. THE BRIDGE IS STRUCTURE 15197R0. HV2341' HV2341'HANDHELD CONSUMER-GRADE GARMIN ETREX GPS RECEIVER RETURNS LOCATION AS HV2341'N38D 58M 50.0S, W077D 00M 59.7S 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 HV2334 *********************************************************************** HV2334 DESIGNATION - 1672 WSSC HV2334 PID - HV2334 HV2334 STATE/COUNTY- MD/MONTGOMERY HV2334 USGS QUAD - WASHINGTON WEST (1983) HV2334 HV2334 *CURRENT SURVEY CONTROL HV2334 ___________________________________________________________________ HV2334* NAD 83(1986)- 38 59 24. (N) 077 01 23. (W) SCALED HV2334* NAVD 88 - 105.898 (meters) 347.43 (feet) ADJUSTED HV2334 ___________________________________________________________________ HV2334 GEOID HEIGHT- -31.96 (meters) GEOID03 HV2334 DYNAMIC HT - 105.841 (meters) 347.25 (feet) COMP HV2334 MODELED GRAV- 980,086.4 (mgal) NAVD 88 HV2334 HV2334 VERT ORDER - SECOND CLASS 0 HV2334 HV2334.The horizontal coordinates were scaled from a topographic map and have HV2334.an estimated accuracy of +/- 6 seconds. HV2334 HV2334.The orthometric height was determined by differential leveling HV2334.and adjusted by the National Geodetic Survey in June 1991. HV2334 HV2334.The geoid height was determined by GEOID03. HV2334 HV2334.The dynamic height is computed by dividing the NAVD 88 HV2334.geopotential number by the normal gravity value computed on the HV2334.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 HV2334.degrees latitude (g = 980.6199 gals.). HV2334 HV2334.The modeled gravity was interpolated from observed gravity values. HV2334 HV2334; North East Units Estimated Accuracy HV2334;SPC MD - 146,900. 398,000. MT (+/- 180 meters Scaled) HV2334 HV2334 SUPERSEDED SURVEY CONTROL HV2334 HV2334 NGVD 29 (??/??/??) 106.110 (m) 348.13 (f) ADJUSTED 2 0 HV2334 HV2334.Superseded values are not recommended for survey control. HV2334.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HV2334.See file dsdata.txt to determine how the superseded data were derived. HV2334 HV2334_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ247176(NAD 83) HV2334_MARKER: DD = SURVEY DISK HV2334_SETTING: 17 = SET INTO TOP OF METAL PIPE DRIVEN INTO GROUND HV2334_SP_SET: METAL PIPE DRIVEN INTO GROUND HV2334_STAMPING: 1672 HV2334_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY HV2334 HV2334 HISTORY - Date Condition Report By HV2334 HISTORY - UNK MONUMENTED WSSC HV2334 HISTORY - 1951 GOOD CGS HV2334 HISTORY - 20040320 GOOD GEOCAC HV2334 HV2334 STATION DESCRIPTION HV2334 HV2334'DESCRIBED BY COAST AND GEODETIC SURVEY 1951 HV2334'0.2 MI E FROM SILVER SPRING. HV2334'ABOUT 0.2 MILE EAST ALONG SLIGO AVENUE FROM THE BALTIMORE AND HV2334'OHIO RAILROAD STATION AT SILVER SPRING, MONTGOMERY COUNTY, IN THE HV2334'SOUTHWEST ANGLE OF THE INTERSECTION OF SLIGO AVENUE AND WOODBURY HV2334'DRIVE, ABOUT 25 FEET SOUTH OF SLIGO AVENUE, BETWEEN THE SIDEWALK HV2334'AND CURB ON THE WEST SIDE OF WOODBURY DRIVE, 69.1 FEET NORTHWEST HV2334'OF THE SOUTHWEST CORNER OF THE HOUSE IN THE SOUTHEAST ANGLE OF HV2334'THE INTERSECTION, 64.9 FEET WEST OF THE NORTHWEST CORNER OF THE HV2334'FRONT PORCH OF THE SAME HOUSE, 60.7 FEET NORTHEAST OF THE HV2334'NORTHEAST CORNER OF THE SIDE PORCH OF THE HOUSE IN THE HV2334'SOUTHWEST ANGLE OF THE INTERSECTION, 58.4 FEET EAST OF THE HV2334'NORTHEAST CORNER OF THE SAME HOUSE, AND ABOUT FLUSH WITH HV2334'THE GROUND SURFACE. A WASHINGTON SUBURBAN SANITARY DISTRICT HV2334'BRONZE DISK, STAMPED 1672 AND SET IN THE TOP OF A 2-INCH IRON HV2334'PIPE. HV2334 HV2334 STATION RECOVERY (2004) HV2334 HV2334'RECOVERY NOTE BY GEOCACHING 2004 (APC) HV2334'LOCATED IN THE GRASSY STRIP BETWEEN THE CURB AND SIDEWALK IN FRONT OF HV2334'RESIDENCE AT 833 WOODBURY DRIVE. STATION IS APPROXIMATELY 5.8 FEET HV2334'NORTH OF A TREE, APPROXIMATELY 3.8 FEET EAST OF THE EAST EDGE OF THE HV2334'SIDEWALK, APPROXIMATELY 3.2 FEET WEST OF THE WEST EDGE OF THE CURB, HV2334'AND APPROXIMATELY 18.3 FEET NORTH OF THE EXTENDED CENTERLINE OF THE HV2334'WALKWAY LEADING TO THE FRONT DOOR OF THE HOUSE. HV2334' HV2334'HANDHELD GPS COORDINATES - N38 59 34.3, W076 01 22.7 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 HV2335 *********************************************************************** HV2335 DESIGNATION - 1754 WSSC HV2335 PID - HV2335 HV2335 STATE/COUNTY- MD/MONTGOMERY HV2335 USGS QUAD - WASHINGTON WEST (1983) HV2335 HV2335 *CURRENT SURVEY CONTROL HV2335 ___________________________________________________________________ HV2335* NAD 83(1986)- 38 59 18. (N) 077 00 45. (W) SCALED HV2335* NAVD 88 - 88.800 (meters) 291.34 (feet) ADJUSTED HV2335 ___________________________________________________________________ HV2335 GEOID HEIGHT- -31.97 (meters) GEOID03 HV2335 DYNAMIC HT - 88.752 (meters) 291.18 (feet) COMP HV2335 MODELED GRAV- 980,088.3 (mgal) NAVD 88 HV2335 HV2335 VERT ORDER - SECOND CLASS 0 HV2335 HV2335.The horizontal coordinates were scaled from a topographic map and have HV2335.an estimated accuracy of +/- 6 seconds. HV2335 HV2335.The orthometric height was determined by differential leveling HV2335.and adjusted by the National Geodetic Survey in June 1991. HV2335 HV2335.The geoid height was determined by GEOID03. HV2335 HV2335.The dynamic height is computed by dividing the NAVD 88 HV2335.geopotential number by the normal gravity value computed on the HV2335.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 HV2335.degrees latitude (g = 980.6199 gals.). HV2335 HV2335.The modeled gravity was interpolated from observed gravity values. HV2335 HV2335; North East Units Estimated Accuracy HV2335;SPC MD - 146,710. 398,920. MT (+/- 180 meters Scaled) HV2335 HV2335 SUPERSEDED SURVEY CONTROL HV2335 HV2335 NGVD 29 (??/??/??) 89.013 (m) 292.04 (f) ADJUSTED 2 0 HV2335 HV2335.Superseded values are not recommended for survey control. HV2335.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HV2335.See file dsdata.txt to determine how the superseded data were derived. HV2335 HV2335_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ256174(NAD 83) HV2335_MARKER: DD = SURVEY DISK HV2335_SETTING: 30 = SET IN A LIGHT STRUCTURE HV2335_SP_SET: RETAINING WALL HV2335_STAMPING: 1754 HV2335_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY HV2335 HV2335 HISTORY - Date Condition Report By HV2335 HISTORY - UNK MONUMENTED WSSC HV2335 HISTORY - 1951 GOOD CGS HV2335 HISTORY - 20040320 GOOD GEOCAC HV2335 HV2335 STATION DESCRIPTION HV2335 HV2335'DESCRIBED BY COAST AND GEODETIC SURVEY 1951 HV2335'AT SILVER SPRING. HV2335'IN SILVER SPRING, MONTGOMERY COUNTY, AT THE INTERSECTION OF HV2335'PINEY BRANCH ROAD AND RITCHIE AVENUE, IN THE NORTH ANGLE OF HV2335'THE INTERSECTION, ON THE TOP OF A CONCRETE RETAINING WALL, AND HV2335'2 FEET NORTHWEST OF THE SOUTHEAST END OF THE WALL. A WASHINGTON HV2335'SUBURBAN SANITARY DISTRICT BRONZE DISK, STAMPED 1754. HV2335 HV2335 STATION RECOVERY (2004) HV2335 HV2335'RECOVERY NOTE BY GEOCACHING 2004 (APC) HV2335'STATION LOCATED AS DESCRIBED AND APPROXIMATELY 6 FEET NORTHEAST OF A HV2335'FIRE HYDRANT AND APPROXIMATELY 9.5 FEET NORTHWEST OF PEPCO POLE HV2335'796420-3753. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV7099 *********************************************************************** JV7099 DESIGNATION - 20307 JV7099 PID - JV7099 JV7099 STATE/COUNTY- MD/MONTGOMERY JV7099 USGS QUAD - GERMANTOWN (1979) JV7099 JV7099 *CURRENT SURVEY CONTROL JV7099 ___________________________________________________________________ JV7099* NAD 83(1991)- 39 08 56.05492(N) 077 18 11.27425(W) ADJUSTED JV7099* NAVD 88 - 135.4 (meters) 444. (feet) GPS OBS JV7099 ___________________________________________________________________ JV7099 X - 1,088,631.455 (meters) COMP JV7099 Y - -4,831,870.165 (meters) COMP JV7099 Z - 4,005,215.782 (meters) COMP JV7099 LAPLACE CORR- 3.54 (seconds) DEFLEC99 JV7099 ELLIP HEIGHT- 103.57 (meters) (08/30/02) GPS OBS JV7099 GEOID HEIGHT- -31.84 (meters) GEOID03 JV7099 JV7099 HORZ ORDER - FIRST JV7099 ELLP ORDER - FOURTH CLASS II JV7099 JV7099.The horizontal coordinates were established by GPS observations JV7099.and adjusted by the National Geodetic Survey in January 1994. JV7099 JV7099.The orthometric height was determined by GPS observations and a JV7099.high-resolution geoid model. JV7099 JV7099.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7099 JV7099.The Laplace correction was computed from DEFLEC99 derived deflections. JV7099 JV7099.The ellipsoidal height was determined by GPS observations JV7099.and is referenced to NAD 83. JV7099 JV7099.The geoid height was determined by GEOID03. JV7099 JV7099; North East Units Scale Factor Converg. JV7099;SPC MD - 164,579.864 373,796.981 MT 0.99996118 -0 11 24.9 JV7099;SPC MD - 539,959.10 1,226,365.60 sFT 0.99996118 -0 11 24.9 JV7099;UTM 18 - 4,335,827.029 300,975.478 MT 1.00008775 -1 27 16.3 JV7099 JV7099! - Elev Factor x Scale Factor = Combined Factor JV7099!SPC MD - 0.99998375 x 0.99996118 = 0.99994493 JV7099!UTM 18 - 0.99998375 x 1.00008775 = 1.00007150 JV7099 JV7099 SUPERSEDED SURVEY CONTROL JV7099 JV7099 ELLIP H (01/11/94) 103.50 (m) GP( ) 4 1 JV7099 JV7099.Superseded values are not recommended for survey control. JV7099.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7099.See file dsdata.txt to determine how the superseded data were derived. JV7099 JV7099_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0097535827(NAD 83) JV7099_MARKER: DD = SURVEY DISK JV7099_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7099_SP_SET: CONCRETE POST JV7099_STAMPING: T.S. 20307 MC JV7099_MARK LOGO: WSSC JV7099_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT JV7099_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7099+STABILITY: SURFACE MOTION JV7099_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7099+SATELLITE: SATELLITE OBSERVATIONS - November 21, 2003 JV7099 JV7099 HISTORY - Date Condition Report By JV7099 HISTORY - 1993 MONUMENTED MSI JV7099 HISTORY - 20031121 GOOD GEOCAC JV7099 JV7099 STATION DESCRIPTION JV7099 JV7099'DESCRIBED BY MEASUREMENT SCIENCE INCORPORATED 1993 JV7099'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY JV7099'3.2 MI (5.1 KM) NORTH OF DARNESTOWN. TO REACH THE STATION FROM THE JV7099'INTERSECTION OF DARNESTOWN ROAD (S.R. 28) AND DARNESTOWN-GERMANTOWN JV7099'ROAD (S.R. 118), PROCEED NORTH ALONG DARNESTOWN-GERMANTOWN ROAD FOR JV7099'2.3 MI (3.7 KM) TO THE INTERSECTION WITH BLACK ROCK ROAD. TURN LEFT JV7099'AND PROCEED 0.35 MI (0.56 KM) NORTHWEST ALONG BLACK ROCK ROAD TO THE JV7099'INTERSECTION WITH BURDETTE LANE. TURN RIGHT AND PROCEED 0.35 MI JV7099'(0.56 KM) NORTH ALONG BURDETTE LANE TO THE INTERSECTION WITH JV7099'SCHAEFFER ROAD. TURN RIGHT AND PROCEED NORTHEAST ALONG SCHAEFFER ROAD JV7099'FOR 0.03 MI (0.05 KM) TO THE STATION ON THE RIGHT, NEAR THE PARKING JV7099'AREA FOR THE SOUTH GERMANTOWN RECREATIONAL PARK. JV7099'THE STATION IS A WSSC SURVEY DISK SET IN THE TOP OF A CONCRETE JV7099'MONUMENT, APPROXIMATELY FLUSH WITH THE GROUND SURFACE, AND STAMPED JV7099'T.S. 20307 MC. THE DISK IS LOCATED 71.0 FT (21.6 M) SOUTH-SOUTHEAST JV7099'OF THE CENTERLINE OF SCHAEFFER ROAD, 90.3 FT (27.5 M) EAST OF THE JV7099'EAST END OF THE CONCRETE CULVERT AT THE WESTERN ENTRANCE TO THE JV7099'PARKING AREA, AND 110.1 FT (33.6 M) SOUTH-SOUTHWEST OF THE WEST END JV7099'OF THE CONCRETE CULVERT AT THE EASTERN ENTRANCE TO THE PARKING AREA. JV7099 JV7099 STATION RECOVERY (2003) JV7099 JV7099'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV7099'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV7145 *********************************************************************** JV7145 DESIGNATION - 20353 JV7145 PID - JV7145 JV7145 STATE/COUNTY- MD/MONTGOMERY JV7145 USGS QUAD - SANDY SPRING (1988) JV7145 JV7145 *CURRENT SURVEY CONTROL JV7145 ___________________________________________________________________ JV7145* NAD 83(1991)- 39 10 34.80931(N) 077 02 54.74768(W) ADJUSTED JV7145* NAVD 88 - 133.9 (meters) 439. (feet) GPS OBS JV7145 ___________________________________________________________________ JV7145 X - 1,109,659.482 (meters) COMP JV7145 Y - -4,825,109.748 (meters) COMP JV7145 Z - 4,007,576.210 (meters) COMP JV7145 LAPLACE CORR- -3.11 (seconds) DEFLEC99 JV7145 ELLIP HEIGHT- 102.13 (meters) (08/30/02) GPS OBS JV7145 GEOID HEIGHT- -31.82 (meters) GEOID03 JV7145 JV7145 HORZ ORDER - FIRST JV7145 ELLP ORDER - FOURTH CLASS II JV7145 JV7145.The horizontal coordinates were established by GPS observations JV7145.and adjusted by the National Geodetic Survey in January 1994. JV7145 JV7145.The orthometric height was determined by GPS observations and a JV7145.high-resolution geoid model. JV7145 JV7145.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7145 JV7145.The Laplace correction was computed from DEFLEC99 derived deflections. JV7145 JV7145.The ellipsoidal height was determined by GPS observations JV7145.and is referenced to NAD 83. JV7145 JV7145.The geoid height was determined by GEOID03. JV7145 JV7145; North East Units Scale Factor Converg. JV7145;SPC MD - 167,582.797 395,805.676 MT 0.99996357 -0 01 49.7 JV7145;SPC MD - 549,811.23 1,298,572.46 sFT 0.99996357 -0 01 49.7 JV7145;UTM 18 - 4,338,343.872 323,046.682 MT 0.99998556 -1 17 39.9 JV7145 JV7145! - Elev Factor x Scale Factor = Combined Factor JV7145!SPC MD - 0.99998398 x 0.99996357 = 0.99994755 JV7145!UTM 18 - 0.99998398 x 0.99998556 = 0.99996954 JV7145 JV7145: Primary Azimuth Mark Grid Az JV7145:SPC MD - 20343 244 20 39.2 JV7145:UTM 18 - 20343 245 36 29.4 JV7145 JV7145|---------------------------------------------------------------------| JV7145| PID Reference Object Distance Geod. Az | JV7145| dddmmss.s | JV7145| JV7135 20343 482.618 METERS 2441849.5 | JV7145|---------------------------------------------------------------------| JV7145 JV7145 SUPERSEDED SURVEY CONTROL JV7145 JV7145 ELLIP H (01/11/94) 102.06 (m) GP( ) 4 1 JV7145 JV7145.Superseded values are not recommended for survey control. JV7145.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7145.See file dsdata.txt to determine how the superseded data were derived. JV7145 JV7145_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ2304738344(NAD 83) JV7145_MARKER: DD = SURVEY DISK JV7145_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7145_SP_SET: CONCRETE POST JV7145_STAMPING: T.S. 20353 MC JV7145_MARK LOGO: WSSC JV7145_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT JV7145_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7145+STABILITY: SURFACE MOTION JV7145_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7145+SATELLITE: SATELLITE OBSERVATIONS - October 26, 2001 JV7145 JV7145 HISTORY - Date Condition Report By JV7145 HISTORY - 1993 MONUMENTED MSI JV7145 HISTORY - 20011026 GOOD USPSQD JV7145 HISTORY - 20030821 GOOD GEOCAC JV7145 JV7145 STATION DESCRIPTION JV7145 JV7145'DESCRIBED BY MEASUREMENT SCIENCE INCORPORATED 1993 JV7145'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY JV7145'0.6 MI (1.0 KM) SOUTHEAST OF THE TOWN OF BROOKEVILLE. TO REACH THE JV7145'STATION FROM THE INTERSECTION OF OLNEY-LAYTONSVILLE ROAD (S.R. 108) JV7145'AND GEORGIA AVENUE (S.R. 97), PROCEED NORTH ON GEORGIA AVENUE FOR 1.4 JV7145'MI (2.3 KM) TO THE INTERSECTION WITH GOLD MINE ROAD. TURN RIGHT AND JV7145'TRAVEL EAST ON GOLD MINE ROAD FOR 0.6 MI (1.0 KM) TO THE STATION ON JV7145'RIGHT. JV7145'THE STATION IS A WSSC SURVEY DISK SET IN THE TOP OF A CONCRETE JV7145'MONUMENT, APPROXIMATELY FLUSH WITH THE GROUND SURFACE, AND STAMPED JV7145'T.S. 20353 MC. THE DISK IS LOCATED 17.0 FT (5.2 M) SOUTH OF THE JV7145'CENTER OF GOLD MINE ROAD, 22.0 FT (6.7 M) NORTH OF A SIGN READING JV7145'GAS PIPE LINE, AND 36.5 FT (11.1 M) SOUTH-SOUTHWEST OF MAIL BOX NO. JV7145'2221. JV7145 JV7145 STATION RECOVERY (2001) JV7145 JV7145'RECOVERY NOTE BY US POWER SQUADRON 2001 (BAS) JV7145' JV7145' JV7145 JV7145 STATION RECOVERY (2003) JV7145 JV7145'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV7145'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV2815 *********************************************************************** JV2815 DESIGNATION - 2812 WSSC JV2815 PID - JV2815 JV2815 STATE/COUNTY- MD/MONTGOMERY JV2815 USGS QUAD - ROCKVILLE (1984) JV2815 JV2815 *CURRENT SURVEY CONTROL JV2815 ___________________________________________________________________ JV2815* NAD 83(1986)- 39 01 27. (N) 077 13 05. (W) SCALED JV2815* NAVD 88 - 112.322 (meters) 368.51 (feet) ADJUSTED JV2815 ___________________________________________________________________ JV2815 GEOID HEIGHT- -31.67 (meters) GEOID03 JV2815 DYNAMIC HT - 112.265 (meters) 368.32 (feet) COMP JV2815 MODELED GRAV- 980,109.7 (mgal) NAVD 88 JV2815 JV2815 VERT ORDER - SECOND CLASS 0 JV2815 JV2815.The horizontal coordinates were scaled from a topographic map and have JV2815.an estimated accuracy of +/- 6 seconds. JV2815 JV2815.The orthometric height was determined by differential leveling JV2815.and adjusted by the National Geodetic Survey in June 1991. JV2815 JV2815.The geoid height was determined by GEOID03. JV2815 JV2815.The dynamic height is computed by dividing the NAVD 88 JV2815.geopotential number by the normal gravity value computed on the JV2815.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2815.degrees latitude (g = 980.6199 gals.). JV2815 JV2815.The modeled gravity was interpolated from observed gravity values. JV2815 JV2815; North East Units Estimated Accuracy JV2815;SPC MD - 150,710. 381,120. MT (+/- 180 meters Scaled) JV2815 JV2815 SUPERSEDED SURVEY CONTROL JV2815 JV2815 NGVD 29 (??/??/??) 112.553 (m) 369.27 (f) ADJUSTED 2 0 JV2815 JV2815.Superseded values are not recommended for survey control. JV2815.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2815.See file dsdata.txt to determine how the superseded data were derived. JV2815 JV2815_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ079217(NAD 83) JV2815_MARKER: Q = CHISELED SQUARE JV2815_SETTING: 36 = SET IN A MASSIVE STRUCTURE JV2815_SP_SET: HEADWALL JV2815_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV2815 JV2815 HISTORY - Date Condition Report By JV2815 HISTORY - UNK MONUMENTED WSSC JV2815 HISTORY - 1957 GOOD WSSC JV2815 HISTORY - 20020314 MARK NOT FOUND USPSQD JV2815 HISTORY - 20040828 MARK NOT FOUND GEOCAC JV2815 JV2815 STATION DESCRIPTION JV2815 JV2815'DESCRIBED BY WASH SUBURB SAN COMM 1957 JV2815'0.6 MI NW FROM POTOMAC. JV2815'0.6 MI. N.W. ALONG STATE HIGHWAY 190 (RIVER ROAD) FROM ITS JV2815'INTERSECTION WITH STATE HIGHWAY 189 (FALLS ROAD) AT POTOMAC, IN JV2815'THE CONCRETE HEADWALL ON THE S. SIDE OF THE HIGHWAY. JV2815 JV2815 STATION RECOVERY (2002) JV2815 JV2815'RECOVERY NOTE BY US POWER SQUADRON 2002 (JJS) JV2815'NO HEADWALL - ROAD WIDENED JV2815 JV2815 STATION RECOVERY (2004) JV2815 JV2815'RECOVERY NOTE BY GEOCACHING 2004 (APC) JV2815'MARK NOT FOUND. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV2893 *********************************************************************** JV2893 DESIGNATION - 3230 WSSC JV2893 PID - JV2893 JV2893 STATE/COUNTY- MD/MONTGOMERY JV2893 USGS QUAD - GAITHERSBURG (1979) JV2893 JV2893 *CURRENT SURVEY CONTROL JV2893 ___________________________________________________________________ JV2893* NAD 83(1986)- 39 08 59. (N) 077 14 36. (W) SCALED JV2893* NAVD 88 - 140.653 (meters) 461.46 (feet) ADJUSTED JV2893 ___________________________________________________________________ JV2893 GEOID HEIGHT- -31.75 (meters) GEOID03 JV2893 DYNAMIC HT - 140.580 (meters) 461.22 (feet) COMP JV2893 MODELED GRAV- 980,101.6 (mgal) NAVD 88 JV2893 JV2893 VERT ORDER - SECOND CLASS 0 JV2893 JV2893.The horizontal coordinates were scaled from a topographic map and have JV2893.an estimated accuracy of +/- 6 seconds. JV2893 JV2893.The orthometric height was determined by differential leveling JV2893.and adjusted by the National Geodetic Survey in June 1991. JV2893 JV2893.The geoid height was determined by GEOID03. JV2893 JV2893.The dynamic height is computed by dividing the NAVD 88 JV2893.geopotential number by the normal gravity value computed on the JV2893.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2893.degrees latitude (g = 980.6199 gals.). JV2893 JV2893.The modeled gravity was interpolated from observed gravity values. JV2893 JV2893; North East Units Estimated Accuracy JV2893;SPC MD - 164,660. 378,970. MT (+/- 180 meters Scaled) JV2893 JV2893 SUPERSEDED SURVEY CONTROL JV2893 JV2893 NGVD 29 (??/??/??) 140.863 (m) 462.15 (f) ADJUSTED 2 0 JV2893 JV2893.Superseded values are not recommended for survey control. JV2893.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2893.See file dsdata.txt to determine how the superseded data were derived. JV2893 JV2893_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ061357(NAD 83) JV2893_MARKER: B = BOLT JV2893_SETTING: 30 = SET IN A LIGHT STRUCTURE JV2893_SP_SET: STEP JV2893_STAMPING: WSSC BM 3230 JV2893_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV2893_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV2893+SATELLITE: SATELLITE OBSERVATIONS - November 21, 2003 JV2893 JV2893 HISTORY - Date Condition Report By JV2893 HISTORY - UNK MONUMENTED WSSC JV2893 HISTORY - 1966 GOOD WSSC JV2893 HISTORY - 20031121 GOOD GEOCAC JV2893 JV2893 STATION DESCRIPTION JV2893 JV2893'DESCRIBED BY WASH SUBURB SAN COMM 1966 JV2893'0.5 MI S FROM DARNESTOWN. JV2893'2.5 MI. N.E. ALONG STATE HWY. 28 FROM ITS JUNCTION WITH STATE JV2893'HWY. 112 AT DARNESTOWN, THENCE 0.75 MI. N.E. ALONG STATE HWY. JV2893'124, THENCE 1.5 MI. N. ALONG LONGDRAUGH ROAD, THENCE 0.3 MI. W. JV2893'ALONG CLOPPER ROAD. IN THE THIRD CONCRETE STEP LEADING TO A JV2893'WHITE FRAME CHURCH ABOUT 250 FT. E. OF A GAME PRESERVE ROAD. JV2893'BENCH MARK MAY ALSO BE REACHED BY GOING 1.2 MI. ALONG STATE HWY. JV2893'124 FROM ITS INTERSECTION WITH STATE HWY. 355 AT GAITHERSBURG JV2893'THENCE 1.3 MI. W. ALONG CLOPPER ROAD. JV2893 JV2893 STATION RECOVERY (2003) JV2893 JV2893'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV2893'FOUND AS DESCRIBED IN CONCRETE STEPS IN FRONT OF WHITE-PAINTED WOODEN JV2893'ST. ROSE OF LIMA ROMAN CATHOLIC CHURCH. BOLT IS SURROUNDED BY A JV2893'WASHER/COLLAR STAMPED W.S.S.C. B.M. NO. 3230 JV2893' JV2893'CONSUMER GRADE GARMIN ETREX GPS COORDINGATES N39D 08M 59.0S, W077D 14M JV2893'34.1S 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV6148 *********************************************************************** JV6148 DESIGNATION - 3596 JV6148 PID - JV6148 JV6148 STATE/COUNTY- MD/MONTGOMERY JV6148 USGS QUAD - GERMANTOWN (1979) JV6148 JV6148 *CURRENT SURVEY CONTROL JV6148 ___________________________________________________________________ JV6148* NAD 83(1986)- 39 09 20. (N) 077 15 44. (W) SCALED JV6148* NAVD 88 - 94.718 (meters) 310.75 (feet) ADJUSTED JV6148 ___________________________________________________________________ JV6148 GEOID HEIGHT- -31.78 (meters) GEOID03 JV6148 DYNAMIC HT - 94.668 (meters) 310.59 (feet) COMP JV6148 MODELED GRAV- 980,099.9 (mgal) NAVD 88 JV6148 JV6148 VERT ORDER - FIRST CLASS I JV6148 JV6148.The horizontal coordinates were scaled from a topographic map and have JV6148.an estimated accuracy of +/- 6 seconds. JV6148 JV6148.The orthometric height was determined by differential leveling JV6148.and adjusted by the National Geodetic Survey in June 1991. JV6148 JV6148.The geoid height was determined by GEOID03. JV6148 JV6148.The dynamic height is computed by dividing the NAVD 88 JV6148.geopotential number by the normal gravity value computed on the JV6148.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV6148.degrees latitude (g = 980.6199 gals.). JV6148 JV6148.The modeled gravity was interpolated from observed gravity values. JV6148 JV6148; North East Units Estimated Accuracy JV6148;SPC MD - 165,310. 377,340. MT (+/- 180 meters Scaled) JV6148 JV6148 SUPERSEDED SURVEY CONTROL JV6148 JV6148.No superseded survey control is available for this station. JV6148 JV6148_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ045364(NAD 83) JV6148_MARKER: DD = SURVEY DISK JV6148_SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE JV6148_SP_SET: CONCRETE HEADWALL JV6148_STAMPING: 3596 JV6148_MARK LOGO: WSSC JV6148_MAGNETIC: N = NO MAGNETIC MATERIAL JV6148_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV6148+STABILITY: SURFACE MOTION JV6148_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV6148+SATELLITE: SATELLITE OBSERVATIONS - November 21, 2003 JV6148 JV6148 HISTORY - Date Condition Report By JV6148 HISTORY - UNK MONUMENTED WSSC JV6148 HISTORY - 19891017 GOOD NGS JV6148 HISTORY - 19911113 GOOD NGS JV6148 HISTORY - 20031121 GOOD GEOCAC JV6148 JV6148 STATION DESCRIPTION JV6148 JV6148'DESCRIBED BY NATIONAL GEODETIC SURVEY 1989 JV6148'2.05 KM (1.27 MI) SOUTHEAST ALONG STATE ROUTE 117 FROM THE JV6148'INTERSECTION OF STATE ROUTE 118 IN OLD GERMANTOWN TO THE MARK ON THE JV6148'LEFT, SET IN THE NORTH END OF THE EAST HEADWALL OF A DOUBLE BOX JV6148'CULVERT, 5.2 M (17 FT) EAST OF THE CENTERLINE OF THE HIGHWAY, 0.2 M JV6148'(0.6 FT) SOUTH OF THE NORTH END OF THE HEADWALL, 0.22 M (0.75 FT) JV6148'NORTH OF THE EAST GRARD RAIL ON THE HEADWALL, AND ABOUT 0.5 M (1.5 JV6148'FT) ABOVE THE HIGHWAY. JV6148 JV6148 STATION RECOVERY (1991) JV6148 JV6148'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 JV6148'RECOVERED IN GOOD CONDITION. JV6148 JV6148 STATION RECOVERY (2003) JV6148 JV6148'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV6148'FOUND AS DESCRIBED ON SMALL CONCRETE BRIDGE OVER GUNNERS BRANCH ALONG JV6148'ROUTE 117 (CLOPPER ROAD) BETWEEN ALLSPICE AND CINNAMON DRIVES. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV6689 *********************************************************************** JV6689 DESIGNATION - BM 1871A JV6689 PID - JV6689 JV6689 STATE/COUNTY- MD/MONTGOMERY JV6689 USGS QUAD - SANDY SPRING (1988) JV6689 JV6689 *CURRENT SURVEY CONTROL JV6689 ___________________________________________________________________ JV6689* NAD 83(1991)- 39 13 18.52842(N) 077 03 37.62800(W) ADJUSTED JV6689* NAVD 88 - 157.9 (meters) 518. (feet) GPS OBS JV6689 ___________________________________________________________________ JV6689 X - 1,107,945.966 (meters) COMP JV6689 Y - -4,822,248.361 (meters) COMP JV6689 Z - 4,011,504.028 (meters) COMP JV6689 LAPLACE CORR- -2.40 (seconds) DEFLEC99 JV6689 ELLIP HEIGHT- 126.01 (meters) (08/30/02) GPS OBS JV6689 GEOID HEIGHT- -31.80 (meters) GEOID03 JV6689 JV6689 HORZ ORDER - FIRST JV6689 ELLP ORDER - FOURTH CLASS II JV6689 JV6689.The horizontal coordinates were established by GPS observations JV6689.and adjusted by the National Geodetic Survey in November 1994. JV6689 JV6689.The orthometric height was determined by GPS observations and a JV6689.high-resolution geoid model. JV6689 JV6689.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV6689 JV6689.The Laplace correction was computed from DEFLEC99 derived deflections. JV6689 JV6689.The ellipsoidal height was determined by GPS observations JV6689.and is referenced to NAD 83. JV6689 JV6689.The geoid height was determined by GEOID03. JV6689 JV6689; North East Units Scale Factor Converg. JV6689;SPC MD - 172,632.120 394,779.799 MT 0.99996804 -0 02 16.6 JV6689;SPC MD - 566,377.21 1,295,206.72 sFT 0.99996804 -0 02 16.6 JV6689;UTM 18 - 4,343,414.717 322,132.473 MT 0.99998955 -1 18 11.6 JV6689 JV6689! - Elev Factor x Scale Factor = Combined Factor JV6689!SPC MD - 0.99998023 x 0.99996804 = 0.99994827 JV6689!UTM 18 - 0.99998023 x 0.99998955 = 0.99996978 JV6689 JV6689 SUPERSEDED SURVEY CONTROL JV6689 JV6689 ELLIP H (11/14/94) 125.94 (m) GP( ) 4 2 JV6689 NAD 83(1991)- 39 13 18.52715(N) 077 03 37.62779(W) AD( ) 1 JV6689 ELLIP H (01/27/92) 125.93 (m) GP( ) 4 1 JV6689 NAD 83(1986)- 39 13 18.52707(N) 077 03 37.63830(W) AD( ) 1 JV6689 NGVD 29 (03/05/91) 158.03 (m) 518.5 (f) LEVELING 3 JV6689 JV6689.Superseded values are not recommended for survey control. JV6689.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV6689.See file dsdata.txt to determine how the superseded data were derived. JV6689 JV6689_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ2213243415(NAD 83) JV6689_MARKER: DD = SURVEY DISK JV6689_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV6689_SP_SET: CONCRETE POST JV6689_STAMPING: 1871A 19801 JV6689_MARK LOGO: WSSC JV6689_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT JV6689_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV6689+STABILITY: SURFACE MOTION JV6689_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV6689+SATELLITE: SATELLITE OBSERVATIONS - November 16, 2001 JV6689 JV6689 HISTORY - Date Condition Report By JV6689 HISTORY - 1989 MONUMENTED WSSC JV6689 HISTORY - 19940323 GOOD MSI JV6689 HISTORY - 20011116 GOOD DMW JV6689 HISTORY - 20030821 GOOD GEOCAC JV6689 JV6689 STATION DESCRIPTION JV6689 JV6689'DESCRIBED BY WASH SUBURB SAN COMM 1989 JV6689'THE STATION IS LOCATED ABOUT 7.3 KM (4.5 MI) EAST OF LAYTONSVILLE, 7.7 JV6689'KM (4.8 MI) NORTH OF OLNEY AND 4.5 KM (2.8 MI) NW OF BRIGHTON. TO JV6689'RESCH THE STATION FROM THE INTERSECTION OF STATE RDS RTE 97 (GEORGIA JV6689'AVE) AND RTE 650 (NEW HAMPSHIRE AVE) GO NW ON RTE 650 61.0 M JV6689'(200.1 FT) TO A GRAVEL DRIVE, TURN LEFT AND GO SW ON A GRAVEL DRIVE JV6689'30 M (98.4 FT) TO THE STATION ON THE RIGHT. THE STATION IS 1 M JV6689'(3.3 FT) NE OF A WIRE FENCE IN THE REAR OF MT. CARMEL METHODIST JV6689'CHURCH. OWNERSHIP--MT. CARMEL METHODIST CHURCH. THE STATION MARK IS A JV6689'STANDARK WSSC BRASS DISK STAMPED 1871A 19801 SET IN THE TOP OF A JV6689'ROUND CONCRETE MONUMENT 0.2 M (0.7 FT) IN DIAMETER SET FLUSH WITH THE JV6689'GRASS. IT IS 13.5 M (44.3 FT) WEST OF THE FACE OF A 0.15 M (0.49 FT) JV6689'PINE, 13.8 M (45.3 FT) NW OF THE FACE OF A 0.305 M (1.001 FT) MAPLE JV6689'AND 24.7 M (81.0 FT) NORTH OF THE NORTH CORNER OF THE CHURCH. NO JV6689'REFERENCES WERE ESTABLISHED AT THIS TIME. NO STATIONS SERVE AS JV6689'AZIMUTH MARKS FOR THIS STATION AT THIS TIME. JV6689 JV6689 STATION RECOVERY (1994) JV6689 JV6689'RECOVERY NOTE BY MEASUREMENT SCIENCE INCORPORATED 1994 (BAC) JV6689'RECOVERED AS DESCRIBED BY MEASUREMENT SCIENCE, INC. (1994). JV6689 JV6689 STATION RECOVERY (2001) JV6689 JV6689'RECOVERY NOTE BY DAFT MCCUNE WALKER INCORPORATED 2001 (DMM) JV6689'RECOVERY NOTE JV6689'STATION FOUND IN GOOD CONDITION 11/2001 JV6689 JV6689 STATION RECOVERY (2003) JV6689 JV6689'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV6689'WITNESS POST OBSERVED BETWEEN MARK AND WIRE FENCE. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 HV4470 *********************************************************************** HV4470 DESIGNATION - CHEVY CHASE LATTER DAY ST CH HV4470 PID - HV4470 HV4470 STATE/COUNTY- MD/MONTGOMERY HV4470 USGS QUAD - WASHINGTON WEST (1983) HV4470 HV4470 *CURRENT SURVEY CONTROL HV4470 ___________________________________________________________________ HV4470* NAD 83(1991)- 38 57 48.78179(N) 077 04 57.69887(W) ADJUSTED HV4470* NAVD 88 - HV4470 ___________________________________________________________________ HV4470 LAPLACE CORR- -2.68 (seconds) DEFLEC99 HV4470 GEOID HEIGHT- -31.88 (meters) GEOID03 HV4470 HV4470 HORZ ORDER - THIRD HV4470 HV4470.The horizontal coordinates were established by classical geodetic methods HV4470.and adjusted by the National Geodetic Survey in November 1994. HV4470 HV4470 HV4470.The Laplace correction was computed from DEFLEC99 derived deflections. HV4470 HV4470.The geoid height was determined by GEOID03. HV4470 HV4470; North East Units Scale Factor Converg. HV4470;SPC MD - 143,963.204 392,833.183 MT 0.99995102 -0 03 06.8 HV4470;SPC MD - 472,319.28 1,288,820.20 sFT 0.99995102 -0 03 06.8 HV4470;UTM 18 - 4,314,794.544 319,554.969 MT 1.00000095 -1 18 36.0 HV4470 HV4470 SUPERSEDED SURVEY CONTROL HV4470 HV4470 NAD 83(1991)- 38 57 48.78109(N) 077 04 57.69997(W) AD( ) 4 HV4470 NAD 83(1986)- 38 57 48.78074(N) 077 04 57.70984(W) AD( ) 4 HV4470 NAD 27 - 38 57 48.38357(N) 077 04 58.78346(W) AD( ) 3 HV4470 HV4470.Superseded values are not recommended for survey control. HV4470.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HV4470.See file dsdata.txt to determine how the superseded data were derived. HV4470 HV4470_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1955514795(NAD 83) HV4470_MARKER: 90 = CHURCH SPIRE HV4470_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR HV4470+SATELLITE: SATELLITE OBSERVATIONS - March 11, 2002 HV4470 HV4470 HISTORY - Date Condition Report By HV4470 HISTORY - 1969 FIRST OBSERVED CGS HV4470 HISTORY - 19950804 GOOD USPSQD HV4470 HISTORY - 20020311 GOOD USPSQD HV4470 HISTORY - 20030724 GOOD GEOCAC HV4470 HV4470 STATION DESCRIPTION HV4470 HV4470'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) HV4470'THE STATION IS THE CENTER OF THE TOP OF THE CHEVY CHASE LATTER DAY HV4470'SAINT CHURCH SPIRE. IT IS ABOUT 90 FEET ABOVE THE GROUND. HV4470' HV4470'THE STATION IS LOCATED AT 5460 WESTERN AVENUE. HV4470 HV4470 STATION RECOVERY (1995) HV4470 HV4470'RECOVERY NOTE BY US POWER SQUADRON 1995 HV4470'RECOVERED IN GOOD CONDITION. HV4470 HV4470 STATION RECOVERY (2002) HV4470 HV4470'RECOVERY NOTE BY US POWER SQUADRON 2002 (JJS) HV4470'RECOVERED IN GOOD CONDITION. HV4470 HV4470 STATION RECOVERY (2003) HV4470 HV4470'RECOVERY NOTE BY GEOCACHING 2003 (APC) HV4470'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 HV1434 *********************************************************************** HV1434 DESIGNATION - CHURCH STEP HV1434 PID - HV1434 HV1434 STATE/COUNTY- MD/MONTGOMERY HV1434 USGS QUAD - WASHINGTON EAST (1979) HV1434 HV1434 *CURRENT SURVEY CONTROL HV1434 ___________________________________________________________________ HV1434* NAD 83(1986)- 38 59 07. (N) 076 59 54. (W) SCALED HV1434* NAVD 88 - 66.466 (meters) 218.06 (feet) ADJUSTED HV1434 ___________________________________________________________________ HV1434 GEOID HEIGHT- -32.00 (meters) GEOID03 HV1434 DYNAMIC HT - 66.431 (meters) 217.95 (feet) COMP HV1434 MODELED GRAV- 980,095.3 (mgal) NAVD 88 HV1434 HV1434 VERT ORDER - SECOND CLASS I HV1434 HV1434.The horizontal coordinates were scaled from a topographic map and have HV1434.an estimated accuracy of +/- 6 seconds. HV1434 HV1434.The orthometric height was determined by differential leveling HV1434.and adjusted by the National Geodetic Survey in June 1991. HV1434 HV1434.The geoid height was determined by GEOID03. HV1434 HV1434.The dynamic height is computed by dividing the NAVD 88 HV1434.geopotential number by the normal gravity value computed on the HV1434.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 HV1434.degrees latitude (g = 980.6199 gals.). HV1434 HV1434.The modeled gravity was interpolated from observed gravity values. HV1434 HV1434; North East Units Estimated Accuracy HV1434;SPC MD - 146,370. 400,140. MT (+/- 180 meters Scaled) HV1434 HV1434 SUPERSEDED SURVEY CONTROL HV1434 HV1434 NGVD 29 (??/??/??) 66.682 (m) 218.77 (f) ADJUSTED 2 1 HV1434 HV1434.Superseded values are not recommended for survey control. HV1434.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HV1434.See file dsdata.txt to determine how the superseded data were derived. HV1434 HV1434_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ269170(NAD 83) HV1434_MARKER: Z = SEE DESCRIPTION HV1434_SETTING: 30 = SET IN A LIGHT STRUCTURE HV1434_SP_SET: STEP HV1434_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY HV1434_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR HV1434+SATELLITE: SATELLITE OBSERVATIONS - March 20, 2004 HV1434 HV1434 HISTORY - Date Condition Report By HV1434 HISTORY - UNK MONUMENTED CGS HV1434 HISTORY - 1951 GOOD CGS HV1434 HISTORY - 20040320 GOOD GEOCAC HV1434 HV1434 STATION DESCRIPTION HV1434 HV1434'DESCRIBED BY COAST AND GEODETIC SURVEY 1951 HV1434'AT TAKOMA PARK. HV1434'AT TAKOMA PARK, MONTGOMERY COUNTY, IN THE NORTH ANGLE OF THE HV1434'INTERSECTION OF CARROLL AND FLOWER AVENUE, AT THE ENTRANCE TO HV1434'SLIGO CHURCH, AND ON THE EXTREME OUTER EAST CORNER OF THE LONG HV1434'CURVED BOTOM STEP. AN UNMARKED POINT, THE SURFACE OF THE TOP HV1434'OF THE STEP AT THE CORNER. HV1434 HV1434 STATION RECOVERY (2004) HV1434 HV1434'RECOVERY NOTE BY GEOCACHING 2004 (APC) HV1434'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV4546 *********************************************************************** JV4546 DESIGNATION - ELMER ANIMAL CTR TANK JV4546 PID - JV4546 JV4546 STATE/COUNTY- MD/MONTGOMERY JV4546 USGS QUAD - POOLESVILLE (1995) JV4546 JV4546 *CURRENT SURVEY CONTROL JV4546 ___________________________________________________________________ JV4546* NAD 83(1991)- 39 07 38.24145(N) 077 28 44.40235(W) ADJUSTED JV4546* NAVD 88 - JV4546 ___________________________________________________________________ JV4546 LAPLACE CORR- 5.21 (seconds) DEFLEC99 JV4546 GEOID HEIGHT- -32.24 (meters) GEOID03 JV4546 JV4546 HORZ ORDER - THIRD JV4546 JV4546.The horizontal coordinates were established by classical geodetic methods JV4546.and adjusted by the National Geodetic Survey in November 1994. JV4546 JV4546 JV4546.The Laplace correction was computed from DEFLEC99 derived deflections. JV4546 JV4546.The geoid height was determined by GEOID03. JV4546 JV4546; North East Units Scale Factor Converg. JV4546;SPC MD - 162,245.477 358,582.215 MT 0.99995945 -0 18 02.3 JV4546;SPC MD - 532,300.37 1,176,448.48 sFT 0.99995945 -0 18 02.3 JV4546;SPC VA N - 2,162,623.099 3,588,283.924 MT 0.99998791 +0 38 14.0 JV4546;UTM 18 - 4,333,828.584 285,710.377 MT 1.00016545 -1 33 53.8 JV4546 JV4546 SUPERSEDED SURVEY CONTROL JV4546 JV4546 NAD 83(1991)- 39 07 38.24222(N) 077 28 44.40302(W) AD( ) 4 JV4546 NAD 83(1986)- 39 07 38.24101(N) 077 28 44.41277(W) AD( ) 4 JV4546 NAD 27 - 39 07 37.85992(N) 077 28 45.44180(W) AD( ) 3 JV4546 JV4546.Superseded values are not recommended for survey control. JV4546.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4546.See file dsdata.txt to determine how the superseded data were derived. JV4546 JV4546_U.S. NATIONAL GRID SPATIAL ADDRESS: 18STJ8571033829(NAD 83) JV4546_MARKER: 53 = ELEVATED TANK JV4546 JV4546 HISTORY - Date Condition Report By JV4546 HISTORY - 1969 FIRST OBSERVED CGS JV4546 HISTORY - 20030717 GOOD GEOCAC JV4546 JV4546 STATION DESCRIPTION JV4546 JV4546'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4546'THE STATION IS THE CENTER OF THE TOP OF THE ELMER ANIMAL CENTER JV4546'TANK, LOCATED 2.6 MILES SOUTH OF THE INTERSECTION OF ELMER SCHOOL JV4546'ROAD AND STATE HIGHWAY 107. JV4546' JV4546'THE TANK IS A PEDESTAL-SPHERE ELEVATED TANK 171 FEET ABOVE THE JV4546'GROUND JV4546 JV4546 STATION RECOVERY (2003) JV4546 JV4546'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV4546'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV3854 *********************************************************************** JV3854 DESIGNATION - N 147 JV3854 PID - JV3854 JV3854 STATE/COUNTY- MD/MONTGOMERY JV3854 USGS QUAD - GERMANTOWN (1979) JV3854 JV3854 *CURRENT SURVEY CONTROL JV3854 ___________________________________________________________________ JV3854* NAD 83(1986)- 39 09 12. (N) 077 15 08. (W) SCALED JV3854* NAVD 88 - 90.769 (meters) 297.80 (feet) ADJUSTED JV3854 ___________________________________________________________________ JV3854 GEOID HEIGHT- -31.77 (meters) GEOID03 JV3854 DYNAMIC HT - 90.722 (meters) 297.64 (feet) COMP JV3854 MODELED GRAV- 980,100.8 (mgal) NAVD 88 JV3854 JV3854 VERT ORDER - FIRST CLASS I JV3854 JV3854.The horizontal coordinates were scaled from a topographic map and have JV3854.an estimated accuracy of +/- 6 seconds. JV3854 JV3854.The orthometric height was determined by differential leveling JV3854.and adjusted by the National Geodetic Survey in June 1991. JV3854 JV3854.The geoid height was determined by GEOID03. JV3854 JV3854.The dynamic height is computed by dividing the NAVD 88 JV3854.geopotential number by the normal gravity value computed on the JV3854.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV3854.degrees latitude (g = 980.6199 gals.). JV3854 JV3854.The modeled gravity was interpolated from observed gravity values. JV3854 JV3854; North East Units Estimated Accuracy JV3854;SPC MD - 165,060. 378,200. MT (+/- 180 meters Scaled) JV3854 JV3854 SUPERSEDED SURVEY CONTROL JV3854 JV3854.No superseded survey control is available for this station. JV3854 JV3854_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ053362(NAD 83) JV3854_MARKER: DV = VERTICAL CONTROL DISK JV3854_SETTING: 66 = SET IN ROCK OUTCROP JV3854_SP_SET: ROCK OUTCROP JV3854_STAMPING: N 147 1979 JV3854_MARK LOGO: NGS JV3854_MAGNETIC: N = NO MAGNETIC MATERIAL JV3854_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD JV3854+STABILITY: POSITION/ELEVATION WELL JV3854_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV3854+SATELLITE: SATELLITE OBSERVATIONS - November 20, 2003 JV3854 JV3854 HISTORY - Date Condition Report By JV3854 HISTORY - 1979 MONUMENTED NGS JV3854 HISTORY - 19891009 GOOD NGS JV3854 HISTORY - 19911113 GOOD NGS JV3854 HISTORY - 20020215 GOOD NGS JV3854 HISTORY - 20031120 GOOD GEOCAC JV3854 JV3854 STATION DESCRIPTION JV3854 JV3854'DESCRIBED BY NATIONAL GEODETIC SURVEY 1979 JV3854'1.85 MI WEST FROM GAITHERSBURG. JV3854'THE MARK IS 12 FT BELOW BRIDGE. JV3854'1.85 MILES WEST NORTHWEST ALONG STATE ROUTE 117 FROM THE INTERSECTION JV3854'OF STATE ROUTE 124 IN GAITHERSBURG TO THE MARK ON THE LEFT, SET IN JV3854'MASSIVE BEDROCK ALONG THE EAST BANK OF SENECA CREEK, 194 FEET JV3854'SOUTHWEST OF THE SOUTHEAST CORNER OF THE ROUTE 117 OVERPASS BRIDGE JV3854'OVER THE CREEK, 88 FEET SOUTHWEST OF THE SOUTHWEST FACE OF THE RUINS JV3854'OF A STONE FOUNDATION, 17 FEET SOUTHEAST OF THE EDGE OF A VERTICAL JV3854'CLIFF AT THE EAST BANK OF THE CREEK, 16 FEET SOUTHWEST OF A 36 INCH JV3854'OAK TREE WITH A TRIANGLE BLAZED IN IT. JV3854 JV3854 STATION RECOVERY (1989) JV3854 JV3854'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1989 JV3854'3.0 KM (1.85 MI) WEST-NORTHWEST ALONG STATE ROUTE 117 (CLOPPER ROAD) JV3854'FROM THE INTERSECTION OF STATE ROUTE 124 (QUINCE ORCHARD ROAD) IN JV3854'GAITHERSBURG TO THE MARK ON THE LEFT, SET IN A MASSIVE ROCK OUTCROP JV3854'ALONG THE EAST BANK OF SENECA CREEK, 59.1 M (194 FT) SOUTHWEST OF THE JV3854'SOUTHEAST CORNER OF THE CONCRETE BRIDGE OVER SENECA CREEK, 26.8 M (88 JV3854'FT) SOUTHWEST OF THE SOUTHWEST FACE OF THE RUINS OF A STONE JV3854'FOUNDATION, 5.2 (17 FT) SOUTHEAST OF THE EDGE OF A VERTICAL CLIFF AT JV3854'THE EAST BANK OF THE CREEK, AND ABOUT 3.7 M (12 FT) BELOW THE BRIDGE. JV3854'NOTE--TO GET TO THE MARK GO ABOUT 91 M (100 YARDS) SOUTHEAST OF THE JV3854'SENECA CREEK BRIDGE TO THE SOUTHEAST EDGE OF A LARGE CLEARING LEADING JV3854'SOUTHWEST AND A TRAIL, FOLLOW THE TRAIL TO THE CREEK AND MARK. JV3854 JV3854 STATION RECOVERY (1991) JV3854 JV3854'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 JV3854'RECOVERED IN GOOD CONDITION. JV3854 JV3854 STATION RECOVERY (2002) JV3854 JV3854'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2002 (CSC) JV3854'RECOVERED IN GOOD CONDITION. JV3854 JV3854 STATION RECOVERY (2003) JV3854 JV3854'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV3854'TO REACH FROM PIPELINE RIGHT-OF-WAY, TURN LEFT AT CREEK JUST PAST JV3854'SENECA CREEK GREENWAY TRAIL SIGN. DISK IS IN ROCK OUTCROPPING DIRECTLY JV3854'UNDERFOOT. JV3854' JV3854'GARMIN ETREX HANDHELD GPS COORDINATES N39D 09M 12.7, W077D 15M 4.6S 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV2201 *********************************************************************** JV2201 DESIGNATION - N 34 JV2201 PID - JV2201 JV2201 STATE/COUNTY- MD/MONTGOMERY JV2201 USGS QUAD - GAITHERSBURG (1979) JV2201 JV2201 *CURRENT SURVEY CONTROL JV2201 ___________________________________________________________________ JV2201* NAD 83(1986)- 39 09 16. (N) 077 14 18. (W) SCALED JV2201* NAVD 88 - 119.723 (meters) 392.79 (feet) ADJUSTED JV2201 ___________________________________________________________________ JV2201 GEOID HEIGHT- -31.75 (meters) GEOID03 JV2201 DYNAMIC HT - 119.661 (meters) 392.59 (feet) COMP JV2201 MODELED GRAV- 980,101.7 (mgal) NAVD 88 JV2201 JV2201 VERT ORDER - FIRST CLASS II JV2201 JV2201.The horizontal coordinates were scaled from a topographic map and have JV2201.an estimated accuracy of +/- 6 seconds. JV2201 JV2201.The orthometric height was determined by differential leveling JV2201.and adjusted by the National Geodetic Survey in June 1991. JV2201 JV2201.The geoid height was determined by GEOID03. JV2201 JV2201.The dynamic height is computed by dividing the NAVD 88 JV2201.geopotential number by the normal gravity value computed on the JV2201.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2201.degrees latitude (g = 980.6199 gals.). JV2201 JV2201.The modeled gravity was interpolated from observed gravity values. JV2201 JV2201; North East Units Estimated Accuracy JV2201;SPC MD - 165,180. 379,400. MT (+/- 180 meters Scaled) JV2201 JV2201 SUPERSEDED SURVEY CONTROL JV2201 JV2201 NGVD 29 (??/??/??) 119.932 (m) 393.48 (f) ADJUSTED 1 2 JV2201 JV2201.Superseded values are not recommended for survey control. JV2201.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2201.See file dsdata.txt to determine how the superseded data were derived. JV2201 JV2201_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ065363(NAD 83) JV2201_MARKER: DB = BENCH MARK DISK JV2201_SETTING: 36 = SET IN A MASSIVE STRUCTURE JV2201_SP_SET: BRIDGE JV2201_STAMPING: N 34 1938 JV2201_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV2201 JV2201 HISTORY - Date Condition Report By JV2201 HISTORY - 1938 MONUMENTED CGS JV2201 HISTORY - 1966 GOOD CGS JV2201 HISTORY - 20031121 GOOD GEOCAC JV2201 JV2201 STATION DESCRIPTION JV2201 JV2201'DESCRIBED BY COAST AND GEODETIC SURVEY 1938 JV2201'AT CLOPPER. JV2201'AT CLOPPER, MONTGOMERY COUNTY, ON THE BALTIMORE AND OHIO JV2201'RAILROAD, 200 FEET SOUTHEAST OF THE STATION, 120 FEET JV2201'SOUTHEAST OF THE PASSENGER PLATFORM, AT BRIDGE 25-A, IN THE TOP JV2201'OF THE SOUTHEAST CORNER, 7 FEET NORTHEAST OF THE CENTER LINE JV2201'OF THE NORTH-BOUND TRACK, 3 FEET NORTHWEST OF THE SOUTHEAST END JV2201'OF THE BRIDGE, AND 1 FOOT SOUTHWEST OF THE EDGE. A STANDARD JV2201'DISK, STAMPED N 34 1938. JV2201 JV2201 STATION RECOVERY (1966) JV2201 JV2201'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 JV2201'RECOVERED IN GOOD CONDITION. JV2201 JV2201 STATION RECOVERY (2003) JV2201 JV2201'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV2201'THE CLOPPER STATION MENTIONED IN THE 1938 DESCRIPTION NO LONGER JV2201'EXISTS. THE LOCATION IS ABOUT .75 MILES NORTHWEST OF THE METROPOLITAN JV2201'GROVE STATION ON MARC'S BRUNSWICK LINE. THE BRIDGE CARRIES THE JV2201'RAILROAD OVER GAME PRESERVE ROAD. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV5947 *********************************************************************** JV5947 DESIGNATION - SPENCER JV5947 PID - JV5947 JV5947 STATE/COUNTY- MD/MONTGOMERY JV5947 USGS QUAD - BELTSVILLE (1979) JV5947 JV5947 *CURRENT SURVEY CONTROL JV5947 ___________________________________________________________________ JV5947* NAD 83(1991)- 39 07 14.75468(N) 076 59 09.84512(W) ADJUSTED JV5947* NAVD 88 - 170.7 (meters) 560. (feet) VERTCON JV5947 ___________________________________________________________________ JV5947 LAPLACE CORR- -3.38 (seconds) DEFLEC99 JV5947 GEOID HEIGHT- -31.95 (meters) GEOID03 JV5947 JV5947 HORZ ORDER - FIRST JV5947 JV5947.The horizontal coordinates were established by classical geodetic methods JV5947.and adjusted by the National Geodetic Survey in January 1992. JV5947 JV5947.The NAVD 88 height was computed by applying the VERTCON shift value to JV5947.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV5947 JV5947.The Laplace correction was computed from DEFLEC99 derived deflections. JV5947 JV5947.The geoid height was determined by GEOID03. JV5947 JV5947; North East Units Scale Factor Converg. JV5947;SPC MD - 161,412.644 401,204.768 MT 0.99995896 +0 00 31.5 JV5947;SPC MD - 529,567.98 1,316,285.98 sFT 0.99995896 +0 00 31.5 JV5947;UTM 18 - 4,332,056.126 328,308.524 MT 0.99996298 -1 15 12.3 JV5947 JV5947! - Elev Factor x Scale Factor = Combined Factor JV5947!SPC MD - 0.99997823 x 0.99995896 = 0.99993719 JV5947!UTM 18 - 0.99997823 x 0.99996298 = 0.99994121 JV5947 JV5947: Primary Azimuth Mark Grid Az JV5947:SPC MD - SPENCER AZ MK 221 59 31.0 JV5947:UTM 18 - SPENCER AZ MK 223 15 14.8 JV5947 JV5947|---------------------------------------------------------------------| JV5947| PID Reference Object Distance Geod. Az | JV5947| dddmmss.s | JV5947| JV5948 BROWNS CORNER STANDPIPE 54.343 METERS 04738 | JV5947| CB1818 SPENCER RM 1 49.250 METERS 05647 | JV5947| JV5949 STABLER 2 204.756 METERS 06027 | JV5947| JV5959 BURTONSVILLE METH CH SPIRE APPROX. 4.5 KM 1104526.6 | JV5947| JV5944 COLESVILLE EPIS CHAPEL CHURCH APPROX. 4.2 KM 1955722.0 | JV5947| CB1817 SPENCER AZ MK 2220002.5 | JV5947| CB1819 SPENCER RM 2 36.734 METERS 31846 | JV5947|---------------------------------------------------------------------| JV5947 JV5947 SUPERSEDED SURVEY CONTROL JV5947 JV5947 NAD 83(1986)- 39 07 14.75408(N) 076 59 09.85499(W) AD( ) 1 JV5947 NAD 27 - 39 07 14.36520(N) 076 59 10.93994(W) AD( ) 1 JV5947 NGVD 29 (07/19/86) 170.9 (m) 561. (f) VERT ANG JV5947 JV5947.Superseded values are not recommended for survey control. JV5947.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV5947.See file dsdata.txt to determine how the superseded data were derived. JV5947 JV5947_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ2830932056(NAD 83) JV5947_MARKER: DS = TRIANGULATION STATION DISK JV5947_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV5947_SP_SET: TOP OF SQUARE CONCRETE MONUMENT JV5947 JV5947 HISTORY - Date Condition Report By JV5947 HISTORY - 1969 MONUMENTED CGS JV5947 HISTORY - 20040807 GOOD GEOCAC JV5947 JV5947 STATION DESCRIPTION JV5947 JV5947'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV5947'THE STATION IS ABOUT 3 MILES NORTH OF COLESVILLE AND 2 MILES SOUTH JV5947'OF ASHTON, ON THE GROUNDS OF THE WASHINGTON SUBURBAN SANITARY JV5947'COMMISSION AND NEAR THE BROWNS CORNER WATER TANK. JV5947' JV5947'TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAYS 198 AND JV5947'650, GO EASTERLY ON HIGHWAY 198 FOR 0.15 MILE TO THE WATER TANK JV5947'AND THE STATION ON THE LEFT. TO REACH THE AZIMUTH MARK FROM THE JV5947'JUNCTION OF STATE HIGHWAYS 198 AND 650, GO SOUTHERLY ON HIGHWAY JV5947'650 FOR 0.5 MILE TO THE MARK ON THE RIGHT. JV5947' JV5947'STATION MARK IS A STANDARD DISK, STAMPED SPENCER 1969, SET IN THE JV5947'TOP OF A ROUND CONRETE POST, 12 INCHES IN DIAMETER, THAT IS FLUSH JV5947'WITH THE GROUND SURFACE. IT IS 146.5 FEET SOUTH OF THE WATER TANK, JV5947'35.7 FEET NORTH-NORTHWEST OF THE SOUTHEAST FENCE CORNER OF A JV5947'FENCE AROUND THE AREA, 30.3 FEET NORTHWEST OF A NORTH-SOUTH FENCE JV5947'AND 29.9 FEET NORTH-NORTHEAST OF THE EAST GATE POST OF A GATE. JV5947'THE UNDERGROUND MARK IS 36 INCHES BELOW THE GROUND SURFACE. JV5947' JV5947'REFERENCE MARK 1 IS A STANDARD DISK, STAMPED SPENCER NO 1 1969, JV5947'CEMENTED IN A DRILL HOLE ON THE SOUTH SIDE OF THE CONCRETE JV5947'FOUNDATION OF THE WATER TANK. IT IS ABOUT THE SAME ELEVATION AS JV5947'THE STATION. JV5947' JV5947'REFERENCE MARK 2 IS A STANDARD DISK, STAMPED SPENCER NO 2 1969, JV5947'SET IN THE TOP OF A ROUND CONCRETE POST, 12 INCHES IN DIAMETER, JV5947'THAT IS FLUSH WITH THE GROUND SURFACE. IT IS 47.0 FEET JV5947'NORTH-NORTHEAST OF THE SOUTHWEST CORNER OF THE FENCE AROUND THE JV5947'AREA, 1.2 FEET EAST OF A FENCE AND ABOUT THE SAME ELEVATION AS JV5947'THE STATION. JV5947' JV5947'AZIMUTH MARK IS A STANDARD DISK, STAMPED SPENCER 1969, SET IN THE JV5947'TOP OF A ROUND CONCRETE POST, 12 INCHES IN DIAMETER, THAT PROJECTS JV5947'3 INCHES ABOVE THE GROUND. IT IS 24.0 FEET WEST OF THE CENTERLINE JV5947'OF STATE HIGHWAY 650, 1.5 FEET NORTH OF TELEPHONE LINE POLE JV5947'NUMBER PEP 720726 AND 1.2 FEET SOUTHEAST OF A WITNESS POST. JV5947 JV5947 STATION RECOVERY (2004) JV5947 JV5947'RECOVERY NOTE BY GEOCACHING 2004 (APC) JV5947'BROWNS CORNER WATER TANK AND THE FENCE MENTIONED IN THE 1969 JV5947'DESCRIPTION NO LONGER EXIST. STATION IS APPROXIMATELY 90 FEET NORTH JV5947'OF A YELLOW METAL PIPE GATE. THE LOCATION IS MARKED BY A CARSONITE JV5947'WITNESS POST. 1 National Geodetic Survey, Retrieval Date = MAY 3, 2005 JV7081 *********************************************************************** JV7081 CBN - This is a Cooperative Base Network Control Station. JV7081 DESIGNATION - WINGATE JV7081 PID - JV7081 JV7081 STATE/COUNTY- MD/MONTGOMERY JV7081 USGS QUAD - WATERFORD (1984) JV7081 JV7081 *CURRENT SURVEY CONTROL JV7081 ___________________________________________________________________ JV7081* NAD 83(1991)- 39 09 52.86262(N) 077 30 06.08153(W) ADJUSTED JV7081* NAVD 88 - 82.3 (meters) 270. (feet) GPS OBS JV7081 ___________________________________________________________________ JV7081 X - 1,071,631.800 (meters) COMP JV7081 Y - -4,834,493.227 (meters) COMP JV7081 Z - 4,006,540.408 (meters) COMP JV7081 LAPLACE CORR- 5.01 (seconds) DEFLEC99 JV7081 ELLIP HEIGHT- 50.01 (meters) (08/09/02) GPS OBS JV7081 GEOID HEIGHT- -32.38 (meters) GEOID03 JV7081 JV7081 HORZ ORDER - B JV7081 ELLP ORDER - FOURTH CLASS II JV7081 JV7081.The horizontal coordinates were established by GPS observations JV7081.and adjusted by the National Geodetic Survey in October 1993. JV7081 JV7081.The orthometric height was determined by GPS observations and a JV7081.high-resolution geoid model. JV7081 JV7081.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7081 JV7081.The Laplace correction was computed from DEFLEC99 derived deflections. JV7081 JV7081.The ellipsoidal height was determined by GPS observations JV7081.and is referenced to NAD 83. JV7081 JV7081.The geoid height was determined by GEOID03. JV7081 JV7081; North East Units Scale Factor Converg. JV7081;SPC MD - 166,407.292 356,643.226 MT 0.99996252 -0 18 53.6 JV7081;SPC MD - 545,954.59 1,170,086.98 sFT 0.99996252 -0 18 53.6 JV7081;SPC VA N - 2,166,752.741 3,586,277.011 MT 0.99999392 +0 37 23.0 JV7081;UTM 18 - 4,338,033.072 283,863.353 MT 1.00017524 -1 34 50.0 JV7081 JV7081! - Elev Factor x Scale Factor = Combined Factor JV7081!SPC MD - 0.99999215 x 0.99996252 = 0.99995467 JV7081!SPC VA N - 0.99999215 x 0.99999392 = 0.99998607 JV7081!UTM 18 - 0.99999215 x 1.00017524 = 1.00016739 JV7081 JV7081 SUPERSEDED SURVEY CONTROL JV7081 JV7081 ELLIP H (10/21/93) 49.91 (m) GP( ) 2 2 JV7081 JV7081.Superseded values are not recommended for survey control. JV7081.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7081.See file dsdata.txt to determine how the superseded data were derived. JV7081 JV7081_U.S. NATIONAL GRID SPATIAL ADDRESS: 18STJ8386338033(NAD 83) JV7081_MARKER: I = METAL ROD JV7081_SETTING: 59 = STAINLESS STEEL ROD IN SLEEVE (10 FT.+) JV7081_SP_SET: STAINLESS STEEL ROD IN SLEEVE JV7081_STAMPING: WINGATE 1992 JV7081_MARK LOGO: NGS JV7081_PROJECTION: RECESSED 2 CENTIMETERS JV7081_MAGNETIC: N = NO MAGNETIC MATERIAL JV7081_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV7081_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7081+SATELLITE: SATELLITE OBSERVATIONS - 1992 JV7081_ROD/PIPE-DEPTH: 3.4 meters JV7081_SLEEVE-DEPTH : 1.0 meters JV7081 JV7081 HISTORY - Date Condition Report By JV7081 HISTORY - 1992 MONUMENTED NGS JV7081 HISTORY - 20030717 GOOD GEOCAC JV7081 JV7081 STATION DESCRIPTION JV7081 JV7081'DESCRIBED BY NATIONAL GEODETIC SURVEY 1992 JV7081'THE STATION IS LOCATED ABOUT 25.1 KM (15.60 MI) WEST OF THE NATIONAL JV7081'INSTITUTE OF STANDARDS AND TECHNOLOGY, 2.0 KM (1.25 MI) EAST OF THE JV7081'POTOMAC RIVER, IN THE VICINITY OF MARTINSBURG AND IN FRONT OF THE JV7081'RESIDENCE OF THE ANNINGTON PLACE. OWNERSHIP--HIGHWAY RIGHT-OF-WAY. JV7081'TO REACH THE STATION FROM THE JUNCTION OF HIGHWAYS 109 AND 107 IN JV7081'POOLESVILLE, GO WEST 3.54 KM (2.20 MI) ON HIGHWAY 107 (WHITES FERRY JV7081'ROAD) TO EDWARDS FERRY ROAD ON THE LEFT. CONTINUE AHEAD 4.5 KM JV7081'(2.80 MI) TO THE STATION ON THE RIGHT JUST AFTER THE DRIVEWAY TO THE JV7081'ANNINGTON PLACE. JV7081'LOCATED 12.1 M (39.7 FT) NORTHWEST FROM A SIGN (ANNINGTON, THE JV7081'CAYWOODS), 5.8 M (19.0 FT) NORTHEAST FROM THE CENTERLINE OF THE JV7081'HIGHWAY, 1.0 M (3.3 FT) SOUTHEAST FROM A WITNESS POST AND 0.4 M JV7081'(1.3 FT) SOUTHWEST FROM A WHITE WOODEN FENCE. JV7081 JV7081 STATION RECOVERY (2003) JV7081 JV7081'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV7081'RECOVERED IN GOOD CONDITION.