1 National Geodetic Survey, Retrieval Date = OCTOBER 7, 2003 JV2651 *********************************************************************** JV2651 DESIGNATION - 1909 A WSSC JV2651 PID - JV2651 JV2651 STATE/COUNTY- MD/MONTGOMERY JV2651 USGS QUAD - SANDY SPRING (1988) JV2651 JV2651 *CURRENT SURVEY CONTROL JV2651 ___________________________________________________________________ JV2651* NAD 83(1986)- 39 14 05. (N) 077 03 22. (W) SCALED JV2651* NAVD 88 - 131.02 (+/-2cm) 429.9 (feet) VERTCON JV2651 ___________________________________________________________________ JV2651 GEOID HEIGHT- -31.82 (meters) GEOID99 JV2651 JV2651 VERT ORDER - SECOND CLASS 0 (See Below) JV2651 JV2651.The horizontal coordinates were scaled from a topographic map and have JV2651.an estimated accuracy of +/- 6 seconds. JV2651 JV2651.The NAVD 88 height was computed by applying the VERTCON shift value to JV2651.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2651.The vertical order pertains to the superseded datum. JV2651 JV2651.The geoid height was determined by GEOID99. JV2651 JV2651; North East Units Estimated Accuracy JV2651;SPC MD - 174,070. 395,160. MT (+/- 180 meters Scaled) JV2651 JV2651 SUPERSEDED SURVEY CONTROL JV2651 JV2651 NGVD 29 (??/??/??) 131.244 (m) 430.59 (f) ADJUSTED 2 0 JV2651 JV2651.Superseded values are not recommended for survey control. JV2651.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2651.See file dsdata.txt to determine how the superseded data were derived. JV2651 JV2651_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ225448(NAD 83) JV2651_MARKER: Q = CHISELED SQUARE JV2651_SETTING: 30 = CULVERT JV2651_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV2651 JV2651 HISTORY - Date Condition Report By JV2651 HISTORY - UNK MONUMENTED WSSC JV2651 HISTORY - 1944 GOOD WSSC JV2651 HISTORY - 20030821 MARK NOT FOUND GEOCAC JV2651 JV2651 STATION DESCRIPTION JV2651 JV2651'DESCRIBED BY WASH SUBURB SAN COMM 1944 JV2651'0.8 MI N FROM SUNSHINE. JV2651'ON THE SUNSHINE-ROXBURY MILLS ROAD (STATE HIGHWAY 97), ON THE JV2651'WEST SIDE OF THE ROAD, AT A CONCRETE CULVERT UNDER THE ROAD, AND JV2651'ON THE TOP OF THE HEADWALL. JV2651 JV2651 STATION RECOVERY (2003) JV2651 JV2651'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV2651'PROBABLE CULVERT IS LOCATED ABOUT 40 FEET SOUTH OF MAILBOX AT HOUSE JV2651'NUMBER 23110, BUT THE CULVERT AND HEADWALL WERE TOO OVERGROWN TO JV2651'INSPECT FOR THE CHISELED SQUARE. 1 National Geodetic Survey, Retrieval Date = OCTOBER 7, 2003 JV6683 *********************************************************************** JV6683 DESIGNATION - 19864 JV6683 PID - JV6683 JV6683 STATE/COUNTY- MD/MONTGOMERY JV6683 USGS QUAD - GAITHERSBURG (1979) JV6683 JV6683 *CURRENT SURVEY CONTROL JV6683 ___________________________________________________________________ JV6683* NAD 83(1991)- 39 12 50.88632(N) 077 07 37.96957(W) ADJUSTED JV6683* NAVD 88 - 164.3 (meters) 539. (feet) GPS OBS JV6683 ___________________________________________________________________ JV6683 X - 1,102,447.494 (meters) COMP JV6683 Y - -4,824,066.445 (meters) COMP JV6683 Z - 4,010,847.706 (meters) COMP JV6683 LAPLACE CORR- -0.69 (seconds) DEFLEC99 JV6683 ELLIP HEIGHT- 132.53 (meters) (08/30/02) GPS OBS JV6683 GEOID HEIGHT- -31.75 (meters) GEOID99 JV6683 JV6683 HORZ ORDER - FIRST JV6683 ELLP ORDER - FOURTH CLASS II JV6683 JV6683.The horizontal coordinates were established by GPS observations JV6683.and adjusted by the National Geodetic Survey in November 1994. JV6683 JV6683.The orthometric height was determined by GPS observations and a JV6683.high-resolution geoid model. JV6683 JV6683.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV6683 JV6683.The Laplace correction was computed from DEFLEC99 derived deflections. JV6683 JV6683.The ellipsoidal height was determined by GPS observations JV6683.and is referenced to NAD 83. JV6683 JV6683.The geoid height was determined by GEOID99. JV6683 JV6683; North East Units Scale Converg. JV6683;SPC MD - 171,785.625 389,013.586 MT 0.99996724 -0 04 47.4 JV6683;SPC MD - 563,600.00 1,276,288.74 sFT 0.99996724 -0 04 47.4 JV6683;UTM 18 - 4,342,695.736 316,348.773 MT 1.00001530 -1 20 42.9 JV6683 JV6683 SUPERSEDED SURVEY CONTROL JV6683 JV6683 ELLIP H (04/01/98) 132.48 (m) GP( ) 4 1 JV6683 ELLIP H (11/14/94) 132.46 (m) GP( ) 4 2 JV6683 NAD 83(1991)- 39 12 50.88530(N) 077 07 37.96936(W) AD( ) 1 JV6683 ELLIP H (01/27/92) 132.44 (m) GP( ) 4 1 JV6683 NAD 83(1986)- 39 12 50.88525(N) 077 07 37.97968(W) AD( ) 1 JV6683 NGVD 29 (03/05/91) 164.5 (m) 540. (f) GPS OBS JV6683 JV6683.Superseded values are not recommended for survey control. JV6683.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV6683.See file dsdata.txt to determine how the superseded data were derived. JV6683 JV6683_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1634942696(NAD 83) JV6683_MARKER: DD = SURVEY DISK JV6683_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV6683_STAMPING: 19864 JV6683_MARK LOGO: WSSC JV6683_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT JV6683_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV6683+STABILITY: SURFACE MOTION JV6683_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV6683+SATELLITE: SATELLITE OBSERVATIONS - April 01, 1994 JV6683 JV6683 HISTORY - Date Condition Report By JV6683 HISTORY - 1989 MONUMENTED WSSC JV6683 HISTORY - 19940401 GOOD MSI JV6683 HISTORY - 20030821 GOOD GEOCAC JV6683 JV6683 STATION DESCRIPTION JV6683 JV6683'DESCRIBED BY WASH SUBURB SAN COMM 1989 JV6683'THE STATION IS LOCATED ABOUT 8.5 KM (5.3 MI) NE OF GAITHERSBURG, 4.0 JV6683'KM (2.5 MI) EAST OF GOSHEN, AND 5.6 KM (3.5 MI) WEST OF SUNSHINE. TO JV6683'REACH THE STATION FROM THE FIRE HOUSE IN LAYTONSVILLE GO NORTH ALONG JV6683'STATE RTE 108 (OLNEY-LAYTONSVILLE RD) 0.6 KM (0.4 MI) TO SUNDOWN JV6683'ROAD, TURN RIGHT AND GO EAST 1.4 KM (0.9 MI) TO THE STATION ON THE JV6683'RIGHT. THE STATION IS LOCATED IN FRONT OF SUNDOWN JV6683'PARK. OWNERSHIP--MARYLAND NATIONAL CAPITOL PARK AND PLANNING JV6683'COMMISSION. THE STATION MARK IS A STANDARD WSSC BRASS DISK STAMPED JV6683'19864 SET IN THE TOP OF A ROUND CONCRETE MONUMENT 0.2 M (0.7 FT) IN JV6683'DIAMETER SET FLUSH IN THE GRASS. IT IS 17.52 M (57.48 FT) EAST OF A JV6683'REF NAIL IN THE NORTH SIDE OF A TELEPHONE POLE NO NUMBER, 57.89 M JV6683'(189.93 FT) WEST OF A REF NAIL IN THE SOUTH SIDE OF A C AND P POLE JV6683'NUMBER M2097, 42.84 M (140.55 FT) SW OF A REF NAIL IN THE SOUTH SIDE JV6683'OF A PEPCO POLE NUMBER 736502-9791, AND 24.99 M (81.99 FT) SE OF A JV6683'REF NAIL IN THE NE SIDE OF A PEPCO POLE NUMBER 763502-8087. NO JV6683'REFERENCES WERE ESTABLISHED AT THIS TIME. NO STATIONS SERVE AS JV6683'AZIMUTH MARKS FOR THIS STATION AT THIS TIME. JV6683 JV6683 STATION RECOVERY (1994) JV6683 JV6683'RECOVERY NOTE BY MEASUREMENT SCIENCE INCORPORATED 1994 (BAC) JV6683'RECOVERED AS DESCRIBED BY MEASUREMENT SCIENCE, INC. (1994). JV6683 JV6683 STATION RECOVERY (2003) JV6683 JV6683'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV6683'STATION IS LOCATED APPROXIMATELY 15 FEET SOUTH OF THE EDGE OF PAVEMENT JV6683'AND APPROXIMATELY 17 FEET NORTH OF THE NORTHERNMOST OF THE TWO WOOD JV6683'POSTS SUPPORTING THE SUNDOWN PARK ROAD SIGN. 1 National Geodetic Survey, Retrieval Date = OCTOBER 7, 2003 JV2367 *********************************************************************** JV2367 DESIGNATION - D 91 JV2367 PID - JV2367 JV2367 STATE/COUNTY- MD/MONTGOMERY JV2367 USGS QUAD - URBANA (1986) JV2367 JV2367 *CURRENT SURVEY CONTROL JV2367 ___________________________________________________________________ JV2367* NAD 83(1986)- 39 16 17. (N) 077 20 21. (W) SCALED JV2367* NAVD 88 - 119.820 (meters) 393.11 (feet) ADJUSTED JV2367 ___________________________________________________________________ JV2367 GEOID HEIGHT- -32.14 (meters) GEOID99 JV2367 DYNAMIC HT - 119.756 (meters) 392.90 (feet) COMP JV2367 MODELED GRAV- 980,092.9 (mgal) NAVD 88 JV2367 JV2367 VERT ORDER - SECOND CLASS 0 JV2367 JV2367.The horizontal coordinates were scaled from a topographic map and have JV2367.an estimated accuracy of +/- 6 seconds. JV2367 JV2367.The orthometric height was determined by differential leveling JV2367.and adjusted by the National Geodetic Survey in June 1991. JV2367 JV2367.The geoid height was determined by GEOID99. JV2367 JV2367.The dynamic height is computed by dividing the NAVD 88 JV2367.geopotential number by the normal gravity value computed on the JV2367.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2367.degrees latitude (g = 980.6199 gals.). JV2367 JV2367.The modeled gravity was interpolated from observed gravity values. JV2367 JV2367; North East Units Estimated Accuracy JV2367;SPC MD - 178,190. 370,730. MT (+/- 180 meters Scaled) JV2367 JV2367 SUPERSEDED SURVEY CONTROL JV2367 JV2367 NGVD 29 (??/??/??) 120.018 (m) 393.76 (f) ADJUSTED 2 0 JV2367 JV2367.Superseded values are not recommended for survey control. JV2367.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2367.See file dsdata.txt to determine how the superseded data were derived. JV2367 JV2367_U.S. NATIONAL GRID SPATIAL ADDRESS: 18STJ982495(NAD 83) JV2367_MARKER: DB = BENCH MARK DISK JV2367_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV2367_STAMPING: D 91 1942 JV2367_MARK LOGO: CGS JV2367_MAGNETIC: O = OTHER; SEE DESCRIPTION JV2367_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV2367+STABILITY: SURFACE MOTION JV2367_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV2367+SATELLITE: SATELLITE OBSERVATIONS - June 15, 2001 JV2367 JV2367 HISTORY - Date Condition Report By JV2367 HISTORY - 1942 MONUMENTED CGS JV2367 HISTORY - 1958 GOOD CGS JV2367 HISTORY - 20010615 GOOD MDSHA JV2367 JV2367 STATION DESCRIPTION JV2367 JV2367'DESCRIBED BY COAST AND GEODETIC SURVEY 1958 JV2367'1.6 MI SW FROM HYATTSTOWN. JV2367'ABOUT 1.6 MILES SOUTHWEST ALONG THE HYATTSTOWN-COMUS ROAD FROM JV2367'THE POST OFFICE AT HYATTSTOWN, ABOUT 1.1 MILES SOUTHWEST OF THE JV2367'NEW U.S. HIGHWAY 240, 0.25 MILE SOUTHWEST OF A BRIDGE OVER A JV2367'SMALL CREEK, 26.3 FEET SOUTHEAST OF THE CENTER LINE OF THE ROAD, JV2367'14 FEET WEST OF THE WEST ONE OF TWO LARGE BEECH TREES, 13 FEET JV2367'EAST OF THE EAST END OF A LARGE PIPE CULVERT UNDER THE ROAD, 2 JV2367'FEET WEST OF A METAL WITNESS POST, SET IN THE TOP OF A CONCRETE JV2367'POST WHICH PROJECTS 4 INCHES ABOVE THE GROUND AND ABOUT 1 FOOT JV2367'ABOVE THE LEVEL OF THE ROAD. JV2367 JV2367 STATION RECOVERY (2001) JV2367 JV2367'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV2367'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = OCTOBER 7, 2003 JV2369 *********************************************************************** JV2369 DESIGNATION - F 91 JV2369 PID - JV2369 JV2369 STATE/COUNTY- MD/MONTGOMERY JV2369 USGS QUAD - URBANA (1986) JV2369 JV2369 *CURRENT SURVEY CONTROL JV2369 ___________________________________________________________________ JV2369* NAD 83(1986)- 39 17 08. (N) 077 18 52. (W) SCALED JV2369* NAVD 88 - 143.751 (meters) 471.62 (feet) ADJUSTED JV2369 ___________________________________________________________________ JV2369 GEOID HEIGHT- -32.10 (meters) GEOID99 JV2369 DYNAMIC HT - 143.675 (meters) 471.37 (feet) COMP JV2369 MODELED GRAV- 980,095.8 (mgal) NAVD 88 JV2369 JV2369 VERT ORDER - SECOND CLASS 0 JV2369 JV2369.The horizontal coordinates were scaled from a topographic map and have JV2369.an estimated accuracy of +/- 6 seconds. JV2369 JV2369.The orthometric height was determined by differential leveling JV2369.and adjusted by the National Geodetic Survey in June 1991. JV2369 JV2369.The geoid height was determined by GEOID99. JV2369 JV2369.The dynamic height is computed by dividing the NAVD 88 JV2369.geopotential number by the normal gravity value computed on the JV2369.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2369.degrees latitude (g = 980.6199 gals.). JV2369 JV2369.The modeled gravity was interpolated from observed gravity values. JV2369 JV2369; North East Units Estimated Accuracy JV2369;SPC MD - 179,750. 372,870. MT (+/- 180 meters Scaled) JV2369 JV2369 SUPERSEDED SURVEY CONTROL JV2369 JV2369 NGVD 29 (??/??/??) 143.946 (m) 472.26 (f) ADJUSTED 2 0 JV2369 JV2369.Superseded values are not recommended for survey control. JV2369.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2369.See file dsdata.txt to determine how the superseded data were derived. JV2369 JV2369_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ003510(NAD 83) JV2369_MARKER: DB = BENCH MARK DISK JV2369_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV2369_STAMPING: F 91 1942 JV2369_MARK LOGO: CGS JV2369_MAGNETIC: O = OTHER; SEE DESCRIPTION JV2369_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV2369+STABILITY: SURFACE MOTION JV2369_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV2369+SATELLITE: SATELLITE OBSERVATIONS - June 15, 2001 JV2369 JV2369 HISTORY - Date Condition Report By JV2369 HISTORY - 1942 MONUMENTED CGS JV2369 HISTORY - 1958 GOOD CGS JV2369 HISTORY - 1970 GOOD NGS JV2369 HISTORY - 20010615 GOOD MDSHA JV2369 JV2369 STATION DESCRIPTION JV2369 JV2369'DESCRIBED BY COAST AND GEODETIC SURVEY 1958 JV2369'0.4 MI NW FROM HYATTSTOWN. JV2369'ABOUT 0.4 MILE NORTHWEST ALONG STATE HIGHWAY 355 (OLD U.S. JV2369'HIGHWAY 240) FROM THE POST OFFICE AT HYATTSTOWN, NEAR THE JV2369'MONTGOMERY-FREDERICK COUNTY LINE, 31 FEET SOUTHWEST OF THE JV2369'CENTERLINE OF THE HIGHWAY, 22 FEET SOUTHEAST OF THE SOUTHEAST JV2369'CORNER OF A CHURCH, 17 FEET SOUTHEAST OF THE CENTER OF A CONCRETE JV2369'WALK LEADING TO CHURCH, 1 FOOT SOUTHEAST OF A ROCK WALL, ABOUT JV2369'100 FEET NORTHWEST AND ACROSS THE HIGHWAY FROM A LARGE CEMETERY, JV2369'SET IN THE TOP OF A CONCRETE POST PROJECTING 3 INCHES ABOVE THE JV2369'GROUND AND ABOUT 3 FEET ABOVE THE LEVEL OF THE HIGHWAY. JV2369 JV2369 STATION RECOVERY (1970) JV2369 JV2369'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1970 JV2369'RECOVERED IN GOOD CONDITION. JV2369 JV2369 STATION RECOVERY (2001) JV2369 JV2369'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV2369'RECOVERED AS DESCRIBED.