1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 JV6680 *********************************************************************** JV6680 DESIGNATION - 19861 JV6680 PID - JV6680 JV6680 STATE/COUNTY- MD/MONTGOMERY JV6680 USGS QUAD - DAMASCUS (1993) JV6680 JV6680 *CURRENT SURVEY CONTROL JV6680 ___________________________________________________________________ JV6680* NAD 83(1991)- 39 16 00.69244(N) 077 12 26.01668(W) ADJUSTED JV6680* NAVD 88 - 233.0 (meters) 764. (feet) VERTCON JV6680 ___________________________________________________________________ JV6680 X - 1,094,901.507 (meters) COMP JV6680 Y - -4,822,042.156 (meters) COMP JV6680 Z - 4,015,424.642 (meters) COMP JV6680 LAPLACE CORR- 2.23 (seconds) DEFLEC99 JV6680 ELLIP HEIGHT- 201.08 (meters) GPS OBS JV6680 GEOID HEIGHT- -31.83 (meters) GEOID99 JV6680 JV6680 HORZ ORDER - FIRST JV6680 ELLP ORDER - FOURTH CLASS II JV6680 JV6680.The horizontal coordinates were established by GPS observations JV6680.and adjusted by the National Geodetic Survey in November 1994. JV6680 JV6680.The NAVD 88 height was computed by applying the VERTCON shift value to JV6680.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV6680 JV6680.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV6680 JV6680.The Laplace correction was computed from DEFLEC99 derived deflections. JV6680 JV6680.The ellipsoidal height was determined by GPS observations JV6680.and is referenced to NAD 83. JV6680 JV6680.The geoid height was determined by GEOID99. JV6680 JV6680; North East Units Scale Converg. JV6680;SPC MD - 177,651.507 382,116.806 MT 0.99997309 -0 07 48.2 JV6680;SPC MD - 582,844.99 1,253,661.55 sFT 0.99997309 -0 07 48.2 JV6680;UTM 18 - 4,348,712.974 309,582.907 MT 1.00004646 -1 23 50.8 JV6680 JV6680 SUPERSEDED SURVEY CONTROL JV6680 JV6680 ELLIP HT - 201.04 (m) GP( ) 4 1 JV6680 ELLIP HT - 201.04 (m) GP( ) 4 2 JV6680 NAD 83(1991)- 39 16 00.69062(N) 077 12 26.01574(W) AD( ) 1 JV6680 ELLIP HT - 201.00 (m) GP( ) 4 1 JV6680 NAD 83(1986)- 39 16 00.69117(N) 077 12 26.02681(W) AD( ) 1 JV6680 NGVD 29 - 233.2 (m) 765. (f) GPS OBS JV6680 JV6680.Superseded values are not recommended for survey control. JV6680.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV6680.See file dsdata.txt to determine how the superseded data were derived. JV6680 JV6680_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0958348713(NAD 83) JV6680_MARKER: DD = SURVEY DISK JV6680_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV6680_STAMPING: 19861 JV6680_MARK LOGO: WSSC JV6680_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT JV6680_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV6680+STABILITY: SURFACE MOTION JV6680_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV6680+SATELLITE: SATELLITE OBSERVATIONS - November 13, 2002 JV6680 JV6680 HISTORY - Date Condition Report By JV6680 HISTORY - 1989 MONUMENTED WSSC JV6680 HISTORY - 20021113 GOOD POWELL JV6680 JV6680 STATION DESCRIPTION JV6680 JV6680'DESCRIBED BY WASH SUBURB SAN COMM 1989 JV6680'THE STATION IS LOCATED ABOUT 8.0 KM (5.0 MI) NE OF CLARKSVILLE, 2.4 KM JV6680'(1.5 MI) SOUTH OF DAMASCUS, AND 6.0 KM (3.7 MI) NW OF ETCHISON. TO JV6680'REACH THE STATION FROM THE INTERSECTION OF RTE 108 (DAMASCUS RD) AND JV6680'RTE 124 (WOODFIELD RD) IN DAMASCUS GO SOUTH ALONG RTE 124 2.4 KM JV6680'(1.5 MI) TO MOYER RD, TURN RIGHT AND GO WEST 0.16 KM (0.10 MI) TO THE JV6680'STATION ON THE RIGHT. THE STATION IS IN THE GRASS BETWEEN MOYER RD JV6680'AND THE CONCRETE SIDEWALK. OWNERSHIP--COUNTY ROAD RIGHT-OF-WAY. THE JV6680'STATION MARK IS A STANDARD WSSC BRASS DISK STAMPED 19861 SET IN THE JV6680'TOP OF A ROUND CONCRETE MONUMENT 0.2 M (0.7 FT) IN DIAMETER SET JV6680'FLUSH. IT IS 34.21 M (112.24 FT) SW OF THE TOP AND CENTER LINE OF AN JV6680'ANGLE POINT OF THE EAST POST OF A WOOD FENCE OF BUILDING NUMBER JV6680'25019, 25.05 M (82.18 FT) SE OF THE EAST CORNER OF BUILDING NUMBER JV6680'25015, 13.44 M (44.09 FT) SE FROM THE NORTH SIDE OF A PEPCO LIGHT JV6680'POLE NUMBER F75731, AND 18.37 M (60.27 FT) NE OF A DISK ON THE NW JV6680'CORNER OF PEPCO ELECTRIC BOX NUMBER 30872. NO REFERENCES WERE JV6680'ESTABLISHED AT THIS TIME. NO STATIONS SERVE AS AZIMUTH MARKS FOR THIS JV6680'STATION AT THIS TIME. JV6680 JV6680 STATION RECOVERY (2002) JV6680 JV6680'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) JV6680'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 HV8954 *********************************************************************** HV8954 DESIGNATION - 19888 HV8954 PID - HV8954 HV8954 STATE/COUNTY- MD/MONTGOMERY HV8954 USGS QUAD - WASHINGTON WEST (1983) HV8954 HV8954 *CURRENT SURVEY CONTROL HV8954 ___________________________________________________________________ HV8954* NAD 83(1991)- 38 57 38.88610(N) 077 05 09.28411(W) ADJUSTED HV8954* NAVD 88 - 95.0 (meters) 312. (feet) VERTCON HV8954 ___________________________________________________________________ HV8954 X - 1,109,875.673 (meters) COMP HV8954 Y - -4,840,502.210 (meters) COMP HV8954 Z - 3,988,973.881 (meters) COMP HV8954 LAPLACE CORR- -2.57 (seconds) DEFLEC99 HV8954 ELLIP HEIGHT- 63.02 (meters) GPS OBS HV8954 GEOID HEIGHT- -31.88 (meters) GEOID99 HV8954 HV8954 HORZ ORDER - FIRST HV8954 ELLP ORDER - FOURTH CLASS II HV8954 HV8954.The horizontal coordinates were established by GPS observations HV8954.and adjusted by the National Geodetic Survey in January 1992. HV8954 HV8954.The NAVD 88 height was computed by applying the VERTCON shift value to HV8954.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) HV8954 HV8954.The X, Y, and Z were computed from the position and the ellipsoidal ht. HV8954 HV8954.The Laplace correction was computed from DEFLEC99 derived deflections. HV8954 HV8954.The ellipsoidal height was determined by GPS observations HV8954.and is referenced to NAD 83. HV8954 HV8954.The geoid height was determined by GEOID99. HV8954 HV8954; North East Units Scale Converg. HV8954;SPC MD - 143,658.319 392,553.992 MT 0.99995094 -0 03 14.1 HV8954;SPC MD - 471,319.00 1,287,904.22 sFT 0.99995094 -0 03 14.1 HV8954;SPC VA N - 2,144,593.673 3,622,555.919 MT 0.99996629 +0 52 57.2 HV8954;UTM 18 - 4,314,495.847 319,269.137 MT 1.00000222 -1 18 43.0 HV8954 HV8954 SUPERSEDED SURVEY CONTROL HV8954 HV8954 ELLIP HT - 62.94 (m) GP( ) 4 1 HV8954 NAD 83(1986)- 38 57 38.88518(N) 077 05 09.29452(W) AD( ) 1 HV8954 NGVD 29 - 95.2 (m) 312. (f) GPS OBS HV8954 HV8954.Superseded values are not recommended for survey control. HV8954.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HV8954.See file dsdata.txt to determine how the superseded data were derived. HV8954 HV8954_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1926914496(NAD 83) HV8954_MARKER: DD = SURVEY DISK HV8954_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT HV8954_STAMPING: 19888 HV8954_MARK LOGO: WSSC HV8954_MAGNETIC: N = NO MAGNETIC MATERIAL HV8954_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO HV8954+STABILITY: SURFACE MOTION HV8954_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR HV8954+SATELLITE: SATELLITE OBSERVATIONS - November 15, 2002 HV8954 HV8954 HISTORY - Date Condition Report By HV8954 HISTORY - 1989 MONUMENTED WSSC HV8954 HISTORY - 19920710 GOOD NOS HV8954 HISTORY - 19960727 GOOD DMW HV8954 HISTORY - 20001010 GOOD MDSHA HV8954 HISTORY - 20021115 GOOD POWELL HV8954 HV8954 STATION DESCRIPTION HV8954 HV8954'DESCRIBED BY WASH SUBURB SAN COMM 1989 HV8954'THE STATION IS LOCATED ABOUT 2.4 KM (1.5 MI) SOUTH OF CHEVY CHASE, 0.2 HV8954'KM (0.1 MI) SE OF SOMERSET, AND AT FRIENDSHIP HEIGHTS. TO REACH THE HV8954'STATION FROM THE INTERSECTION OF STATE ROAD RTE 355 (WISCONSIN AVE) HV8954'AND WESTERN AVE IN FRIENDSHIP HEIGHTS GO TO THE NW CORNER OF THIS HV8954'INTERSECTION TO THE STATION BEHIND THE SIDEWALK. OWNERSHIP--DISTRICT HV8954'OF COLUMBIA ROAD RIGHT-OF-WAY THE STATION MARK IS A STANDARD WSSC HV8954'BRASS DISK STAMPED 19888 SET IN THE TOP OF A ROUND CONCRETE MONUMENT HV8954'0.2 M (0.7 FT) IN DIAMETER FLUSH IN THE GRASS. IT IS 25.13 M HV8954'(82.45 FT) EAST OF THE SE CORNER OF WOODWARD AND LOTHROP DEPARTMENT HV8954'STORE, 7.45 M (24.44 FT) SSW OF A DISTRICT OF COLUMBIA BOUNDARY HV8954'MONUMENT, AND 18.45 M (60.53 FT) SE OF THE SE CORNER OF THE ESCALATOR HV8954'ENTRANCE FOR THE FRIENDSHIP HEIGHTS METRO STATION. NO REFERENCES WERE HV8954'ESTABLISHED AT THIS TIME. NO STATIONS SERVE AS AZIMUTH MARKS FOR THIS HV8954'STATION AT THIS TIME. HV8954 HV8954 STATION RECOVERY (1992) HV8954 HV8954'RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1992 HV8954'RECOVERED IN GOOD CONDITION. HV8954 HV8954 STATION RECOVERY (1996) HV8954 HV8954'RECOVERY NOTE BY DAFT MCCUNE WALKER INCORPORATED 1996 (JMS) HV8954'RECOVERED AS DESCRIBED. HV8954 HV8954 STATION RECOVERY (2000) HV8954 HV8954'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (DMM) HV8954'RECOVERED AS DESCRIBED. HV8954 HV8954 STATION RECOVERY (2002) HV8954 HV8954'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) HV8954'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 JV7130 *********************************************************************** JV7130 DESIGNATION - 20338 JV7130 PID - JV7130 JV7130 STATE/COUNTY- MD/MONTGOMERY JV7130 USGS QUAD - KENSINGTON (1979) JV7130 JV7130 *CURRENT SURVEY CONTROL JV7130 ___________________________________________________________________ JV7130* NAD 83(1991)- 39 00 43.62211(N) 077 06 20.97617(W) ADJUSTED JV7130* NAVD 88 - 88.1 (meters) 289. (feet) GPS OBS JV7130 ___________________________________________________________________ JV7130 X - 1,107,392.219 (meters) COMP JV7130 Y - -4,837,388.876 (meters) COMP JV7130 Z - 3,993,397.806 (meters) COMP JV7130 LAPLACE CORR- -3.18 (seconds) DEFLEC99 JV7130 ELLIP HEIGHT- 56.32 (meters) GPS OBS JV7130 GEOID HEIGHT- -31.81 (meters) GEOID99 JV7130 JV7130 HORZ ORDER - FIRST JV7130 ELLP ORDER - FOURTH CLASS II JV7130 JV7130.The horizontal coordinates were established by GPS observations JV7130.and adjusted by the National Geodetic Survey in January 1994. JV7130 JV7130.The orthometric height was determined by GPS observations and a JV7130.high-resolution geoid model. JV7130 JV7130.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7130 JV7130.The Laplace correction was computed from DEFLEC99 derived deflections. JV7130 JV7130.The ellipsoidal height was determined by GPS observations JV7130.and is referenced to NAD 83. JV7130 JV7130.The geoid height was determined by GEOID99. JV7130 JV7130; North East Units Scale Converg. JV7130;SPC MD - 149,356.661 390,834.612 MT 0.99995267 -0 03 59.1 JV7130;SPC MD - 490,014.31 1,282,263.22 sFT 0.99995267 -0 03 59.1 JV7130;SPC VA N - 2,150,263.250 3,620,743.600 MT 0.99997205 +0 52 12.5 JV7130;UTM 18 - 4,320,230.895 317,675.267 MT 1.00000934 -1 19 33.4 JV7130 JV7130 SUPERSEDED SURVEY CONTROL JV7130 JV7130 ELLIP HT - 56.24 (m) GP( ) 4 1 JV7130 JV7130.Superseded values are not recommended for survey control. JV7130.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7130.See file dsdata.txt to determine how the superseded data were derived. JV7130 JV7130_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1767520231(NAD 83) JV7130_MARKER: DD = SURVEY DISK JV7130_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7130_STAMPING: T.S 20338 MC JV7130_MARK LOGO: WSSC JV7130_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT JV7130_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7130+STABILITY: SURFACE MOTION JV7130_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7130+SATELLITE: SATELLITE OBSERVATIONS - November 15, 2002 JV7130 JV7130 HISTORY - Date Condition Report By JV7130 HISTORY - 1993 MONUMENTED MSI JV7130 HISTORY - 20021115 GOOD POWELL JV7130 JV7130 STATION DESCRIPTION JV7130 JV7130'DESCRIBED BY MEASUREMENT SCIENCE INCORPORATED 1993 JV7130'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY JV7130'5.3 MI (8.5 KM) SOUTHEAST OF THE CITY OF ROCKVILLE. TO REACH THE JV7130'STATION FROM THE INTERSECTION OF ROCKVILLE PIKE (S.R. 355) AND JV7130'TUCKERMAN LANE, PROCEED SOUTH ON ROCKVILLE PIKE FOR 1.3 MI (2.1 KM) JV7130'TO THE INTERSECTION WITH ALTA VISTA ROAD. TURN RIGHT AND TRAVEL WEST JV7130'ON ALTA VISTA ROAD FOR 0.4 MI (0.6 KM) TO THE STATION ON THE RIGHT. JV7130'THE STATION IS A WSSC SURVEY DISK SET IN THE TOP OF A CONCRETE JV7130'MONUMENT, APPROXIMATELY FLUSH WITH THE GROUND SURFACE, AND STAMPED JV7130'T.S. 20338 MC. THE DISK IS LOCATED 212.5 FT (64.8 M) NORTH OF THE JV7130'NORTH CURB OF ALTA VISTA ROAD, 60.7 FT (18.5 M) EAST OF NORTHEAST JV7130'CORNER OF BUILDING NO. 5209, AND 255 FT (77.7 M) SOUTHEAST OF THE JV7130'SOUTHEAST CORNER OF A POWER SHED. JV7130 JV7130 STATION RECOVERY (2002) JV7130 JV7130'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) JV7130'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 JV7136 *********************************************************************** JV7136 DESIGNATION - 20344 JV7136 PID - JV7136 JV7136 STATE/COUNTY- MD/MONTGOMERY JV7136 USGS QUAD - KENSINGTON (1979) JV7136 JV7136 *CURRENT SURVEY CONTROL JV7136 ___________________________________________________________________ JV7136* NAD 83(1991)- 39 00 38.61143(N) 077 02 56.23775(W) ADJUSTED JV7136* NAVD 88 - 101.3 (meters) 332. (feet) GPS OBS JV7136 ___________________________________________________________________ JV7136 X - 1,112,217.342 (meters) COMP JV7136 Y - -4,836,391.993 (meters) COMP JV7136 Z - 3,993,285.974 (meters) COMP JV7136 LAPLACE CORR- -2.88 (seconds) DEFLEC99 JV7136 ELLIP HEIGHT- 69.40 (meters) GPS OBS JV7136 GEOID HEIGHT- -31.90 (meters) GEOID99 JV7136 JV7136 HORZ ORDER - FIRST JV7136 ELLP ORDER - FOURTH CLASS II JV7136 JV7136.The horizontal coordinates were established by GPS observations JV7136.and adjusted by the National Geodetic Survey in January 1994. JV7136 JV7136.The orthometric height was determined by GPS observations and a JV7136.high-resolution geoid model. JV7136 JV7136.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7136 JV7136.The Laplace correction was computed from DEFLEC99 derived deflections. JV7136 JV7136.The ellipsoidal height was determined by GPS observations JV7136.and is referenced to NAD 83. JV7136 JV7136.The geoid height was determined by GEOID99. JV7136 JV7136; North East Units Scale Converg. JV7136;SPC MD - 149,197.974 395,760.052 MT 0.99995261 -0 01 50.6 JV7136;SPC MD - 489,493.69 1,298,422.77 sFT 0.99995261 -0 01 50.6 JV7136;SPC VA N - 2,150,185.082 3,625,671.071 MT 0.99997189 +0 54 20.2 JV7136;UTM 18 - 4,319,963.975 322,596.254 MT 0.99998754 -1 17 24.3 JV7136 JV7136: Primary Azimuth Mark Grid Az JV7136:SPC MD - 20301 105 42 16.6 JV7136:SPC VA N - 20301 104 46 05.8 JV7136:UTM 18 - 20301 106 57 50.3 JV7136 JV7136|---------------------------------------------------------------------| JV7136| PID Reference Object Distance Geod. Az | JV7136| dddmmss.s | JV7136| JV7093 20301 428.766 METERS 1054026.0 | JV7136|---------------------------------------------------------------------| JV7136 JV7136 SUPERSEDED SURVEY CONTROL JV7136 JV7136 ELLIP HT - 69.33 (m) GP( ) 4 1 JV7136 JV7136.Superseded values are not recommended for survey control. JV7136.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7136.See file dsdata.txt to determine how the superseded data were derived. JV7136 JV7136_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ2259619964(NAD 83) JV7136_MARKER: DD = SURVEY DISK JV7136_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7136_STAMPING: T.S. 20344 M.C. JV7136_MARK LOGO: WSSC JV7136_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT JV7136_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7136+STABILITY: SURFACE MOTION JV7136_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7136+SATELLITE: SATELLITE OBSERVATIONS - November 15, 2002 JV7136 JV7136 HISTORY - Date Condition Report By JV7136 HISTORY - 1993 MONUMENTED MSI JV7136 HISTORY - 19960310 GOOD MSI JV7136 HISTORY - 20021115 GOOD POWELL JV7136 JV7136 STATION DESCRIPTION JV7136 JV7136'DESCRIBED BY MEASUREMENT SCIENCE INCORPORATED 1993 JV7136'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY JV7136'2.8 MI (4.5 KM) NORTHEAST OF THE TOWN OF CHEVY CHASE. TO REACH THE JV7136'STATION FROM THE INTERSECTION OF VEIRS MILL ROAD (S.R. 586) AND JV7136'GEORGIA AVENUE (S.R. 97), PROCEED SOUTH ON GEORGIA AVENUE FOR 1.9 MI JV7136'(3.1 KM) TO THE INTERSECTION WITH SEMINARY ROAD. TURN RIGHT AND JV7136'TRAVEL WEST ON SEMINARY ROAD FOR 0.5 MI (0.8 KM) TO THE STATION ON JV7136'THE LEFT, IN FRONT OF HOUSE NO. 2304. JV7136'THE STATION IS A WSSC SURVEY DISK SET IN THE TOP OF A CONCRETE JV7136'MONUMENT, APPROXIMATELY FLUSH WITH THE GROUND SURFACE, AND STAMPED JV7136'T.S. 20344 MC. THE DISK IS LOCATED 16.4 FT (5.0 M) SOUTH THE CENTER JV7136'LINE OF SEMINARY ROAD, 39.2 FT (11.9 M) NORTHWEST OF C AND P JV7136'TELEPHONE POLE NO. MD M9, AND 34.4 FT (10.5 M) EAST OF POWER POLE NO. JV7136'785428-9773. JV7136 JV7136 STATION RECOVERY (1996) JV7136 JV7136'RECOVERY NOTE BY MEASUREMENT SCIENCE INCORPORATED 1996 (JC) JV7136'RECOVERED AS DESCRIBED. JV7136 JV7136 STATION RECOVERY (2002) JV7136 JV7136'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) JV7136'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 JV7197 *********************************************************************** JV7197 DESIGNATION - BURNT JV7197 PID - JV7197 JV7197 STATE/COUNTY- MD/MONTGOMERY JV7197 USGS QUAD - URBANA (1986) JV7197 JV7197 *CURRENT SURVEY CONTROL JV7197 ___________________________________________________________________ JV7197* NAD 83(1991)- 39 15 55.99377(N) 077 15 17.40602(W) ADJUSTED JV7197* NAVD 88 - 188.8 (meters) 619. (feet) GPS OBS JV7197 ___________________________________________________________________ JV7197 X - 1,090,907.087 (meters) COMP JV7197 Y - -4,823,006.344 (meters) COMP JV7197 Z - 4,015,284.478 (meters) COMP JV7197 LAPLACE CORR- 4.20 (seconds) DEFLEC99 JV7197 ELLIP HEIGHT- 156.88 (meters) GPS OBS JV7197 GEOID HEIGHT- -31.91 (meters) GEOID99 JV7197 JV7197 HORZ ORDER - FIRST JV7197 ELLP ORDER - FOURTH CLASS II JV7197 JV7197.The horizontal coordinates were established by GPS observations JV7197.and adjusted by the National Geodetic Survey in November 1994. JV7197 JV7197.The orthometric height was determined by GPS observations and a JV7197.high-resolution geoid model. JV7197 JV7197.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7197 JV7197.The Laplace correction was computed from DEFLEC99 derived deflections. JV7197 JV7197.The ellipsoidal height was determined by GPS observations JV7197.and is referenced to NAD 83. JV7197 JV7197.The geoid height was determined by GEOID99. JV7197 JV7197; North East Units Scale Converg. JV7197;SPC MD - 177,517.006 378,007.939 MT 0.99997293 -0 09 35.8 JV7197;SPC MD - 582,403.71 1,240,181.05 sFT 0.99997293 -0 09 35.8 JV7197;UTM 18 - 4,348,669.392 305,471.728 MT 1.00006595 -1 25 39.2 JV7197 JV7197 SUPERSEDED SURVEY CONTROL JV7197 JV7197 ELLIP HT - 156.80 (m) GP( ) 4 2 JV7197 NAD 83(1991)- 39 15 55.99376(N) 077 15 17.40666(W) AD( ) 1 JV7197 ELLIP HT - 156.85 (m) GP( ) 4 1 JV7197 JV7197.Superseded values are not recommended for survey control. JV7197.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7197.See file dsdata.txt to determine how the superseded data were derived. JV7197 JV7197_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0547248669(NAD 83) JV7197_MARKER: DD = SURVEY DISK JV7197_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7197_STAMPING: BURNT 1993 JV7197_MARK LOGO: MD-021 JV7197_MAGNETIC: N = NO MAGNETIC MATERIAL JV7197_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7197+STABILITY: SURFACE MOTION JV7197_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7197+SATELLITE: SATELLITE OBSERVATIONS - 1993 JV7197 JV7197 HISTORY - Date Condition Report By JV7197 HISTORY - 1993 MONUMENTED GREOMA JV7197 HISTORY - 20021113 MARK NOT FOUND POWELL JV7197 JV7197 STATION DESCRIPTION JV7197 JV7197'DESCRIBED BY GREENHORNE-OMARA 1993 JV7197'FROM FREDERICK, MD GO SOUTH ON I-270 TO THE CLARKSBURG EXIT (MD RTE. JV7197'121). GO EAST ON RTE. 121 (CLARKSBURG ROAD) FOR 1.25 MILES. JV7197'(2.01 KM) TURN RIGHT ON BURNT HILL ROAD. PROCEED EAST AND NORTH ON JV7197'BURNT HILL ROAD FOR 1.7 MILES (2.7 KM) TO STATION ON RIGHT. STATION JV7197'IS 10 FEET (3.0 M) NORTHEAST OF THE CENTERLINE OF A GRAVEL DRIVE AND JV7197'30 FEET (9.1 M) SOUTHEAST OF A POWER POLE. STATION IS BRASS DISK SET JV7197'IN 8 INCH ROUND CONCRETE MONUMENT SET FLUSH WITH THE GROUND. JV7197 JV7197 STATION RECOVERY (2002) JV7197 JV7197'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) JV7197'BRASS DISK IS ASSUMED TO HAVE BEEN REMOVED FROM CONCRETE. DISK NOT JV7197'FOUND 1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 HV9189 *********************************************************************** HV9189 DESIGNATION - GPS 212 HV9189 PID - HV9189 HV9189 STATE/COUNTY- MD/MONTGOMERY HV9189 USGS QUAD - FALLS CHURCH (1994) HV9189 HV9189 *CURRENT SURVEY CONTROL HV9189 ___________________________________________________________________ HV9189* NAD 83(1991)- 38 57 52.36369(N) 077 07 40.21123(W) ADJUSTED HV9189* NAVD 88 - 78.3 (meters) 257. (feet) VERTCON HV9189 ___________________________________________________________________ HV9189 X - 1,106,272.431 (meters) COMP HV9189 Y - -4,841,045.764 (meters) COMP HV9189 Z - 3,989,286.690 (meters) COMP HV9189 LAPLACE CORR- -1.97 (seconds) DEFLEC99 HV9189 ELLIP HEIGHT- 46.55 (meters) GPS OBS HV9189 GEOID HEIGHT- -31.83 (meters) GEOID99 HV9189 HV9189 HORZ ORDER - SECOND HV9189 ELLP ORDER - FOURTH CLASS II HV9189 HV9189.The horizontal coordinates were established by GPS observations HV9189.and adjusted by the National Geodetic Survey in November 1994. HV9189 HV9189.The NAVD 88 height was computed by applying the VERTCON shift value to HV9189.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) HV9189 HV9189.The X, Y, and Z were computed from the position and the ellipsoidal ht. HV9189 HV9189.The Laplace correction was computed from DEFLEC99 derived deflections. HV9189 HV9189.The ellipsoidal height was determined by GPS observations HV9189.and is referenced to NAD 83. HV9189 HV9189.The geoid height was determined by GEOID99. HV9189 HV9189; North East Units Scale Converg. HV9189;SPC MD - 144,078.166 388,921.009 MT 0.99995104 -0 04 48.8 HV9189;SPC MD - 472,696.45 1,275,985.01 sFT 0.99995104 -0 04 48.8 HV9189;SPC VA N - 2,144,954.088 3,618,916.502 MT 0.99996669 +0 51 23.0 HV9189;UTM 18 - 4,314,995.391 315,646.033 MT 1.00001851 -1 20 18.4 HV9189 HV9189: Primary Azimuth Mark Grid Az HV9189:SPC MD - GPS 211 296 27 16.5 HV9189:SPC VA N - GPS 211 295 31 04.7 HV9189:UTM 18 - GPS 211 297 42 46.1 HV9189 HV9189|---------------------------------------------------------------------| HV9189| PID Reference Object Distance Geod. Az | HV9189| dddmmss.s | HV9189| HV9188 GPS 211 APPROX. 1.1 KM 2962227.7 | HV9189|---------------------------------------------------------------------| HV9189 HV9189 SUPERSEDED SURVEY CONTROL HV9189 HV9189 ELLIP HT - 46.51 (m) GP( ) 4 2 HV9189 NAD 83(1991)- 38 57 52.36265(N) 077 07 40.21354(W) AD( ) 2 HV9189 NGVD 29 - 78.6 (m) 258. (f) GPS OBS HV9189 HV9189.Superseded values are not recommended for survey control. HV9189.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HV9189.See file dsdata.txt to determine how the superseded data were derived. HV9189 HV9189_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1564614995(NAD 83) HV9189_MARKER: DD = SURVEY DISK HV9189_SETTING: 17 = SET INTO TOP OF METAL PIPE DRIVEN INTO GROUND HV9189_STAMPING: GPS 212 1991 HV9189_MARK LOGO: VA-059 HV9189_MAGNETIC: I = MARKER IS A STEEL ROD HV9189_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO HV9189+STABILITY: SURFACE MOTION HV9189_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR HV9189+SATELLITE: SATELLITE OBSERVATIONS - November 15, 2002 HV9189 HV9189 HISTORY - Date Condition Report By HV9189 HISTORY - 1991 MONUMENTED MSI HV9189 HISTORY - 19920129 GOOD MSI HV9189 HISTORY - 19970813 GOOD DMW HV9189 HISTORY - 20021115 GOOD POWELL HV9189 HV9189 STATION DESCRIPTION HV9189 HV9189'DESCRIBED BY MEASUREMENT SCIENCE INCORPORATED 1991 HV9189'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND APPROXIMATELY HV9189'0.8 MI (1.3 KM) SOUTHEAST OF THE TOWN OF GLEN ECHO. TO REACH THE HV9189'STATION FROM THE INTERSECTION OF MACARTHUR BOULEVARD AND GOLDSBORO HV9189'ROAD (S.R. 614), PROCEED SOUTHEAST ALONG MACARTHUR BOULEVARD FOR 0.8 HV9189'MI (1.3 KM) TO THE INTERSECTION WITH WALHONDING ROAD. TURN LEFT ONTO HV9189'WALHONDING ROAD AND TRAVEL 0.45 MI (0.72 KM) NORTH TO THE STATION ON HV9189'THE LEFT. HV9189'THE STATION IS A STEEL REBAR WITH AN ALUMINUM FAIRFAX COUNTY CAP SET HV9189'APPROXIMATELY FLUSH WITH THE GROUND SURFACE, STAMPED GPS 212 1991. HV9189'THE STATION IS LOCATED BETWEEN, AND IN FRONT OF, RESIDENCE NUMBERS HV9189'6225 AND 6219, 48.5 FT (14.8 M) NORTHWEST OF PEPCO POLE NUMBER HV9189'763411-5487, 46.3 FT (14.1 M) NORTHEAST OF THE NORTHEASTERNMOST HV9189'CORNER OF A CATCH BASIN ON THE SOUTH SIDE OF WALHONDING ROAD, 31.2 FT HV9189'(9.5 M) SOUTHEAST OF THE SOUTHERN MOST END OF A CHAINLINK FENCE, AND HV9189'9.0 FT (2.7 M) SOUTHWEST OF THE SOUTHWESTERNMOST CORNER OF A BRICK HV9189'AND IRON DROP INLET. HV9189 HV9189 STATION RECOVERY (1992) HV9189 HV9189'RECOVERY NOTE BY MEASUREMENT SCIENCE INCORPORATED 1992 HV9189'RECOVERED IN GOOD CONDITION. HV9189 HV9189 STATION RECOVERY (1997) HV9189 HV9189'RECOVERY NOTE BY DAFT MCCUNE WALKER INCORPORATED 1997 (JMS) HV9189'RECOVERED AS DESCRIBED. HV9189 HV9189 STATION RECOVERY (2002) HV9189 HV9189'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) HV9189'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 JV7219 *********************************************************************** JV7219 DESIGNATION - HOLSEY JV7219 PID - JV7219 JV7219 STATE/COUNTY- MD/MONTGOMERY JV7219 USGS QUAD - DAMASCUS (1993) JV7219 JV7219 *CURRENT SURVEY CONTROL JV7219 ___________________________________________________________________ JV7219* NAD 83(1991)- 39 18 35.54889(N) 077 11 18.05015(W) ADJUSTED JV7219* NAVD 88 - 223.6 (meters) 734. (feet) GPS OBS JV7219 ___________________________________________________________________ JV7219 X - 1,095,818.164 (meters) COMP JV7219 Y - -4,818,725.200 (meters) COMP JV7219 Z - 4,019,115.035 (meters) COMP JV7219 LAPLACE CORR- 2.51 (seconds) DEFLEC99 JV7219 ELLIP HEIGHT- 191.73 (meters) GPS OBS JV7219 GEOID HEIGHT- -31.86 (meters) GEOID99 JV7219 JV7219 HORZ ORDER - FIRST JV7219 ELLP ORDER - FOURTH CLASS II JV7219 JV7219.The horizontal coordinates were established by GPS observations JV7219.and adjusted by the National Geodetic Survey in November 1994. JV7219 JV7219.The orthometric height was determined by GPS observations and a JV7219.high-resolution geoid model. JV7219 JV7219.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7219 JV7219.The Laplace correction was computed from DEFLEC99 derived deflections. JV7219 JV7219.The ellipsoidal height was determined by GPS observations JV7219.and is referenced to NAD 83. JV7219 JV7219.The geoid height was determined by GEOID99. JV7219 JV7219; North East Units Scale Converg. JV7219;SPC MD - 182,423.494 383,755.921 MT 0.99997849 -0 07 05.6 JV7219;SPC MD - 598,501.08 1,259,039.22 sFT 0.99997849 -0 07 05.6 JV7219;UTM 18 - 4,353,447.837 311,327.333 MT 1.00003831 -1 23 12.3 JV7219 JV7219 SUPERSEDED SURVEY CONTROL JV7219 JV7219 ELLIP HT - 191.69 (m) GP( ) 4 1 JV7219 ELLIP HT - 191.69 (m) GP( ) 4 2 JV7219 NAD 83(1991)- 39 18 35.54881(N) 077 11 18.05027(W) AD( ) 1 JV7219 ELLIP HT - 191.69 (m) GP( ) 4 1 JV7219 JV7219.Superseded values are not recommended for survey control. JV7219.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7219.See file dsdata.txt to determine how the superseded data were derived. JV7219 JV7219_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1132753448(NAD 83) JV7219_MARKER: DD = SURVEY DISK JV7219_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7219_STAMPING: HOLSEY 1993 JV7219_MARK LOGO: MD-021 JV7219_MAGNETIC: N = NO MAGNETIC MATERIAL JV7219_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7219+STABILITY: SURFACE MOTION JV7219_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7219+SATELLITE: SATELLITE OBSERVATIONS - November 13, 2002 JV7219 JV7219 HISTORY - Date Condition Report By JV7219 HISTORY - 1993 MONUMENTED GREOMA JV7219 HISTORY - 20011113 GOOD DMW JV7219 HISTORY - 20021113 GOOD POWELL JV7219 JV7219 STATION DESCRIPTION JV7219 JV7219'DESCRIBED BY GREENHORNE-OMARA 1993 JV7219'FROM INTERSECTION OF MD RTE. 80 AND MD RTE. 27 SOUTH OF MT.AIRY, MD, JV7219'PROCEED SOUTH ON MD RTE. 27 FOR 0.65 MILES (1.05 KM) TO HOLSEY ROAD. JV7219'TURN RIGHT AND PROCEED EAST ON HOLSEY ROAD FOR 0.6 MILES (1.0 KM) TO JV7219'STATION ON RIGHT. STATION IS NEAR THE START OF A CURVE IN HOLSEY ROAD JV7219'TO THE LEFT, 4 FEET (1.2 M) SOUTHEAST OF THE EDGE OF PAVING AND 8 JV7219'FEET (2.4 M) NORTHEAST OF THE END OF AN OLD WIRE FENCE. STATION IS JV7219'BRASS DISK SET IN TOP OF 8 INCH ROUND CONCRETE MONUMENT SET FLUSH JV7219'WITH THE GROUND. JV7219 JV7219 STATION RECOVERY (2001) JV7219 JV7219'RECOVERY NOTE BY DAFT MCCUNE WALKER INCORPORATED 2001 (DMM) JV7219'RECOVERY NOTE BY DMW 2001. JV7219'RECOVERED IN GOOD CONDITION. JV7219 JV7219 STATION RECOVERY (2002) JV7219 JV7219'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) JV7219'DESCRIPTION CORRECTION = TURN RIGHT AND PROCEED EAST ON HOSLEY ROAD JV7219'FOR 0.6 MILES TO STATION ON THE RIGHT. CONTINUE AS DESCRIBED BY NGS. 1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 JV7222 *********************************************************************** JV7222 DESIGNATION - KEMP JV7222 PID - JV7222 JV7222 STATE/COUNTY- MD/MONTGOMERY JV7222 USGS QUAD - DAMASCUS (1993) JV7222 JV7222 *CURRENT SURVEY CONTROL JV7222 ___________________________________________________________________ JV7222* NAD 83(1991)- 39 18 53.24521(N) 077 14 50.28902(W) ADJUSTED JV7222* NAVD 88 - 197.8 (meters) 649. (feet) GPS OBS JV7222 ___________________________________________________________________ JV7222 X - 1,090,778.547 (meters) COMP JV7222 Y - -4,819,493.427 (meters) COMP JV7222 Z - 4,019,520.880 (meters) COMP JV7222 LAPLACE CORR- 4.77 (seconds) DEFLEC99 JV7222 ELLIP HEIGHT- 165.83 (meters) GPS OBS JV7222 GEOID HEIGHT- -31.99 (meters) GEOID99 JV7222 JV7222 HORZ ORDER - FIRST JV7222 ELLP ORDER - FOURTH CLASS II JV7222 JV7222.The horizontal coordinates were established by GPS observations JV7222.and adjusted by the National Geodetic Survey in February 1994. JV7222 JV7222.The orthometric height was determined by GPS observations and a JV7222.high-resolution geoid model. JV7222 JV7222.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7222 JV7222.The Laplace correction was computed from DEFLEC99 derived deflections. JV7222 JV7222.The ellipsoidal height was determined by GPS observations JV7222.and is referenced to NAD 83. JV7222 JV7222.The geoid height was determined by GEOID99. JV7222 JV7222; North East Units Scale Converg. JV7222;SPC MD - 182,981.355 378,672.794 MT 0.99997914 -0 09 18.8 JV7222;SPC MD - 600,331.33 1,242,362.32 sFT 0.99997914 -0 09 18.8 JV7222;UTM 18 - 4,354,118.165 306,257.443 MT 1.00006219 -1 25 27.4 JV7222 JV7222 SUPERSEDED SURVEY CONTROL JV7222 JV7222 ELLIP HT - 165.78 (m) GP( ) 4 1 JV7222 JV7222.Superseded values are not recommended for survey control. JV7222.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7222.See file dsdata.txt to determine how the superseded data were derived. JV7222 JV7222_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0625754118(NAD 83) JV7222_MARKER: DD = SURVEY DISK JV7222_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7222_STAMPING: KEMP 1993 JV7222_MARK LOGO: MD-021 JV7222_MAGNETIC: N = NO MAGNETIC MATERIAL JV7222_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7222+STABILITY: SURFACE MOTION JV7222_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7222+SATELLITE: SATELLITE OBSERVATIONS - November 13, 2002 JV7222 JV7222 HISTORY - Date Condition Report By JV7222 HISTORY - 1993 MONUMENTED GREOMA JV7222 HISTORY - 20021113 GOOD POWELL JV7222 JV7222 STATION DESCRIPTION JV7222 JV7222'DESCRIBED BY GREENHORNE-OMARA 1993 JV7222'FROM URBANA, MD, PROCEED EAST ON MD RTE 80 7.7 MILES (12.4 KM) TO JV7222'KEMPTOWN CHURCH ROAD. TURN RIGHT AND PROCEED 2 MILES (3.2 KM) TO JV7222'INTERSECTION WITH BETHESDA CHURCH ROAD. STATION IS BEHIND CHURCH 20 JV7222'FEET (6.1 M) NORTHWEST OF THE CORNER OF THE PARKING LOT AND 2 FEET JV7222'(0.6 M) SOUTH OF THE CORNER OF A CHAIN LINK FENCE. STATION IS BRASS JV7222'DISK SET IN 8 INCH ROUND CONCRETE MONUMENT SET FLUSH WITH THE GROUND. JV7222 JV7222 STATION RECOVERY (2002) JV7222 JV7222'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) JV7222'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 JV7074 *********************************************************************** JV7074 CBN - This is a Cooperative Base Network Control Station. JV7074 DESIGNATION - KINEMATIC JV7074 PID - JV7074 JV7074 STATE/COUNTY- MD/MONTGOMERY JV7074 USGS QUAD - DAMASCUS (1993) JV7074 JV7074 *CURRENT SURVEY CONTROL JV7074 ___________________________________________________________________ JV7074* NAD 83(1991)- 39 15 54.13635(N) 077 13 07.05038(W) ADJUSTED JV7074* NAVD 88 - 229.1 (meters) 752. (feet) GPS OBS JV7074 ___________________________________________________________________ JV7074 X - 1,093,969.882 (meters) COMP JV7074 Y - -4,822,381.890 (meters) COMP JV7074 Z - 4,015,265.768 (meters) COMP JV7074 LAPLACE CORR- 2.75 (seconds) DEFLEC99 JV7074 ELLIP HEIGHT- 197.39 (meters) GPS OBS JV7074 GEOID HEIGHT- -31.84 (meters) GEOID99 JV7074 JV7074 HORZ ORDER - B JV7074 ELLP ORDER - FOURTH CLASS II JV7074 JV7074.The horizontal coordinates were established by GPS observations JV7074.and adjusted by the National Geodetic Survey in October 1993. JV7074 JV7074.The orthometric height was determined by GPS observations and a JV7074.high-resolution geoid model. JV7074 JV7074.Photographs are available for this station. JV7074 JV7074.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7074 JV7074.The Laplace correction was computed from DEFLEC99 derived deflections. JV7074 JV7074.The ellipsoidal height was determined by GPS observations JV7074.and is referenced to NAD 83. JV7074 JV7074.The geoid height was determined by GEOID99. JV7074 JV7074; North East Units Scale Converg. JV7074;SPC MD - 177,451.623 381,132.681 MT 0.99997287 -0 08 14.0 JV7074;SPC MD - 582,189.20 1,250,432.80 sFT 0.99997287 -0 08 14.0 JV7074;UTM 18 - 4,348,534.893 308,594.527 MT 1.00005111 -1 24 16.6 JV7074 JV7074 SUPERSEDED SURVEY CONTROL JV7074 JV7074 ELLIP HT - 197.34 (m) GP( ) 2 2 JV7074 JV7074.Superseded values are not recommended for survey control. JV7074.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7074.See file dsdata.txt to determine how the superseded data were derived. JV7074 JV7074_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0859548535(NAD 83) JV7074_MARKER: I = METAL ROD JV7074_SETTING: 59 = STAINLESS STEEL ROD IN SLEEVE (10 FT.+) JV7074_STAMPING: KINEMATIC 1992 JV7074_MARK LOGO: NGS JV7074_PROJECTION: FLUSH JV7074_MAGNETIC: N = NO MAGNETIC MATERIAL JV7074_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV7074_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7074+SATELLITE: SATELLITE OBSERVATIONS - November 13, 2002 JV7074_ROD/PIPE-DEPTH: 3.4 meters JV7074_SLEEVE-DEPTH : 1.0 meters JV7074 JV7074 HISTORY - Date Condition Report By JV7074 HISTORY - 1992 MONUMENTED NGS JV7074 HISTORY - 20021113 GOOD POWELL JV7074 JV7074 STATION DESCRIPTION JV7074 JV7074'DESCRIBED BY NATIONAL GEODETIC SURVEY 1992 JV7074'THE STATION IS LOCATED ABOUT 15.0 KM (9.30 MI) NORTH OF THE NATIONAL JV7074'INSTITUTE OF STANDARDS AND TECHNOLOGY, 3.2 KM (2.00 MI) SOUTH OF JV7074'DAMASCUS, AND ON THE WEST SIDE OF HIGHWAY 27. OWNERSHIP--HIGHWAY JV7074'RIGHT-OF-WAY. JV7074'TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAY 355 AND STATE JV7074'HIGHWAY 27 IN GERMANTOWN, GO NORTH ON HIGHWAY 27 FOR 2.1 KM JV7074'(1.30 MI) TO MORNING STAR ROAD ON THE LEFT. CONTINUE AHEAD NORTH ON JV7074'HIGHWAY 27 5.6 KM (3.45 MI) TO OAK DRIVE ON THE LEFT AND THE STATION JV7074'BETWEEN OAK DRIVE AND HIGHWAY 27. JV7074'LOCATED 23.7 M (77.8 FT) NORTH FROM SIGN (JOHN T. BAKER JR. HIGH JV7074'SCHOOL), 18.8 M (61.7 FT) NORTH-NORTHEAST FROM POWER POLE WITH LIGHT, JV7074'18.2 M (59.7 FT) WEST-NORTHWEST FROM CENTERLINE OF HIGHWAY 27, 17.3 M JV7074'(56.8 FT) EAST-SOUTHEAST FROM THE CENTERLINE OF OAK DRIVE AND 1.0 M JV7074'(3.3 FT) SOUTHWEST FROM WITNESS POST. JV7074 JV7074 STATION RECOVERY (2002) JV7074 JV7074'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) JV7074'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 AA5777 *********************************************************************** AA5777 DESIGNATION - POOLE AA5777 PID - AA5777 AA5777 STATE/COUNTY- MD/MONTGOMERY AA5777 USGS QUAD - DAMASCUS (1993) AA5777 AA5777 *CURRENT SURVEY CONTROL AA5777 ___________________________________________________________________ AA5777* NAD 83(1991)- 39 18 00.86904(N) 077 11 56.79816(W) ADJUSTED AA5777* NAVD 88 - 245.6 (meters) 806. (feet) GPS OBS AA5777 ___________________________________________________________________ AA5777 X - 1,095,066.797 (meters) COMP AA5777 Y - -4,819,608.213 (meters) COMP AA5777 Z - 4,018,301.369 (meters) COMP AA5777 LAPLACE CORR- 2.90 (seconds) DEFLEC99 AA5777 ELLIP HEIGHT- 213.71 (meters) GPS OBS AA5777 GEOID HEIGHT- -31.86 (meters) GEOID99 AA5777 AA5777 HORZ ORDER - FIRST AA5777 ELLP ORDER - FOURTH CLASS II AA5777 AA5777.The horizontal coordinates were established by GPS observations AA5777.and adjusted by the National Geodetic Survey in June 1995. AA5777 AA5777.The orthometric height was determined by GPS observations and a AA5777.high-resolution geoid model. AA5777 AA5777.The X, Y, and Z were computed from the position and the ellipsoidal ht. AA5777 AA5777.The Laplace correction was computed from DEFLEC99 derived deflections. AA5777 AA5777.The ellipsoidal height was determined by GPS observations AA5777.and is referenced to NAD 83. AA5777 AA5777.The geoid height was determined by GEOID99. AA5777 AA5777; North East Units Scale Converg. AA5777;SPC MD - 181,355.990 382,825.302 MT 0.99997723 -0 07 29.9 AA5777;SPC MD - 594,998.78 1,255,986.01 sFT 0.99997723 -0 07 29.9 AA5777;UTM 18 - 4,352,401.130 310,373.251 MT 1.00004276 -1 23 35.9 AA5777 AA5777 SUPERSEDED SURVEY CONTROL AA5777 AA5777 ELLIP HT - 213.66 (m) GP( ) 4 2 AA5777 AA5777.Superseded values are not recommended for survey control. AA5777.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AA5777.See file dsdata.txt to determine how the superseded data were derived. AA5777 AA5777_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1037352401(NAD 83) AA5777_MARKER: DD = SURVEY DISK AA5777_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AA5777_STAMPING: POOLE 1961 AA5777_MARK LOGO: NONE AA5777_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT AA5777_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AA5777+STABILITY: SURFACE MOTION AA5777_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AA5777+SATELLITE: SATELLITE OBSERVATIONS - November 13, 2002 AA5777 AA5777 HISTORY - Date Condition Report By AA5777 HISTORY - 1961 MONUMENTED RBNF AA5777 HISTORY - 20021113 GOOD POWELL AA5777 AA5777 STATION DESCRIPTION AA5777 AA5777'DESCRIBED BY RESEARCHED BUT NOT FOUND 1961 AA5777'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY AA5777'5.0 MI (8.0 KM) SOUTH OF THE TOWN OF MOUNT AIRY. TO REACH THE STATION AA5777'FROM THE JUNCTION OF KEMPTOWM ROAD (S.R. 80) AND RIDGE ROAD (S.R. 27), AA5777'GO SOUTH 1.1 MI (1.8 KM) ALONG RIDGE ROAD TO THE INTERSECTION WITH GUE AA5777'ROAD ON THE LEFT. CONTINUE SOUTH 0.1 MI (0.2 KM) ALONG RIDGE ROAD TO AA5777'THE STATION ON THE LEFT. AA5777' AA5777'THE STATION IS A DISK SET IN THE TOP OF A CONCRETE MONUMENT WHICH IS 1 AA5777'INCH BELOW GROUND LEVEL, AND STAMPED "POOLE 1961". THE DISK IS AA5777'LOCATED 8.3 FT (2.5 M) SOUTH-SOUTHEAST OF THE EDGE OF PAVEMENT, 21.1 AA5777'FT (6.4 M) WEST-SOUTHWEST OF POWER POLE NO. 43, 57.3 FT (17.5 M) AA5777'EAST-NORTHEAST OF A ROAD SIGN, AND 1.7 FT (0.5 M) NORTH-NORTHWEST OF A AA5777'CARSONITE WITNESS POST. AA5777 AA5777 STATION RECOVERY (2002) AA5777 AA5777'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) AA5777'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = JANUARY 6, 2003 JV7072 *********************************************************************** JV7072 CBN - This is a Cooperative Base Network Control Station. JV7072 DESIGNATION - STATIC JV7072 PID - JV7072 JV7072 STATE/COUNTY- MD/MONTGOMERY JV7072 USGS QUAD - DAMASCUS (1993) JV7072 JV7072 *CURRENT SURVEY CONTROL JV7072 ___________________________________________________________________ JV7072* NAD 83(1991)- 39 18 31.72214(N) 077 11 51.12370(W) ADJUSTED JV7072* NAVD 88 - 241.6 (meters) 793. (feet) GPS OBS JV7072 ___________________________________________________________________ JV7072 X - 1,095,065.159 (meters) COMP JV7072 Y - -4,818,987.395 (meters) COMP JV7072 Z - 4,019,035.174 (meters) COMP JV7072 LAPLACE CORR- 3.02 (seconds) DEFLEC99 JV7072 ELLIP HEIGHT- 209.81 (meters) GPS OBS JV7072 GEOID HEIGHT- -31.88 (meters) GEOID99 JV7072 JV7072 HORZ ORDER - B JV7072 ELLP ORDER - FOURTH CLASS II JV7072 JV7072.The horizontal coordinates were established by GPS observations JV7072.and adjusted by the National Geodetic Survey in October 1993. JV7072 JV7072.The orthometric height was determined by GPS observations and a JV7072.high-resolution geoid model. JV7072 JV7072.Photographs are available for this station. JV7072 JV7072.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7072 JV7072.The Laplace correction was computed from DEFLEC99 derived deflections. JV7072 JV7072.The ellipsoidal height was determined by GPS observations JV7072.and is referenced to NAD 83. JV7072 JV7072.The geoid height was determined by GEOID99. JV7072 JV7072; North East Units Scale Converg. JV7072;SPC MD - 182,307.157 382,963.322 MT 0.99997835 -0 07 26.3 JV7072;SPC MD - 598,119.40 1,256,438.83 sFT 0.99997835 -0 07 26.3 JV7072;UTM 18 - 4,353,349.070 310,532.304 MT 1.00004202 -1 23 33.2 JV7072 JV7072 SUPERSEDED SURVEY CONTROL JV7072 JV7072 ELLIP HT - 209.75 (m) GP( ) 2 2 JV7072 JV7072.Superseded values are not recommended for survey control. JV7072.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7072.See file dsdata.txt to determine how the superseded data were derived. JV7072 JV7072_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1053253349(NAD 83) JV7072_MARKER: I = METAL ROD JV7072_SETTING: 59 = STAINLESS STEEL ROD IN SLEEVE (10 FT.+) JV7072_STAMPING: STATIC 1992 JV7072_MARK LOGO: NGS JV7072_PROJECTION: RECESSED 1 CENTIMETERS JV7072_MAGNETIC: N = NO MAGNETIC MATERIAL JV7072_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV7072_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7072+SATELLITE: SATELLITE OBSERVATIONS - November 13, 2002 JV7072_ROD/PIPE-DEPTH: 4.6 meters JV7072_SLEEVE-DEPTH : 1 meters JV7072 JV7072 HISTORY - Date Condition Report By JV7072 HISTORY - 1992 MONUMENTED NGS JV7072 HISTORY - 20011113 GOOD DMW JV7072 HISTORY - 20021113 GOOD POWELL JV7072 JV7072 STATION DESCRIPTION JV7072 JV7072'DESCRIBED BY NATIONAL GEODETIC SURVEY 1992 JV7072'THE STATION IS LOCATED ABOUT 20.0 KM (12.40 MI) NORTH OF THE NATIONAL JV7072'INSTITUTE OF STANDARDS AND TECHNOLOGY, 3.2 KM (2.00 MI) NORTH OF JV7072'DAMASCUS AND IN THE FRONT YARD OF THE RESIDENCE OF 27525 RIDGE ROAD. JV7072'OWNERSHIP--STEVE DOBAY, 6300 RIDGE ROAD, MT AIRY MD, PHONE JV7072'301-831-7899. JV7072'TO REACH THE STATION FROM THE JUNCTION OF INTERSTATE 70 AND STATE JV7072'HIGHWAY 27 IN MT AIRY, GO SOUTH 5.6 KM (3.45 MI) ON STATE HIGHWAY 27 JV7072'TO STATE HIGHWAY 80 ON THE RIGHT. CONTINUE AHEAD SOUTH ON STATE JV7072'HIGHWAY 27 1.0 KM (0.60 MI) TO THE STATION ON THE LEFT, IN THE GRASS JV7072'LAWN. JV7072'LOCATED 23.5 M (77.1 FT) NORTHEAST FROM POWER POLE NO. 71, 19.1 M JV7072'(62.7 FT) SOUTH FROM THE CENTERLINE OF THE PAVED DRIVEWAY AND 12.4 M JV7072'(40.7 FT) EAST FROM THE CENTERLINE OF HIGHWAY 27. JV7072 JV7072 STATION RECOVERY (2001) JV7072 JV7072'RECOVERY NOTE BY DAFT MCCUNE WALKER INCORPORATED 2001 (DMM) JV7072'RECOVERY NOTE BY DMW 2001. JV7072'RECOVERED IN GOOD CONDITION. JV7072 JV7072 STATION RECOVERY (2002) JV7072 JV7072'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) JV7072'RECOVERED IN GOOD CONDITION.