1 National Geodetic Survey, Retrieval Date = SEPTEMBER 7, 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MT 0.99998791 +0 38 14.0 JV4546;UTM 18 - 4,333,828.584 285,710.377 MT 1.00016545 -1 33 53.8 JV4546 JV4546 SUPERSEDED SURVEY CONTROL JV4546 JV4546 NAD 83(1991)- 39 07 38.24222(N) 077 28 44.40302(W) AD( ) 4 JV4546 NAD 83(1986)- 39 07 38.24101(N) 077 28 44.41277(W) AD( ) 4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Superseded values are not recommended for survey control.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 JV4546.See file dsdata.txt to determine how the superseded data were derived.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_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4546+SATELLITE: SATELLITE OBSERVATIONS - July 31, 2005 JV4546 JV4546 HISTORY - Date Condition Report By JV4546 HISTORY - 1969 FIRST OBSERVED CGS JV4546 HISTORY - 20030717 GOOD GEOCAC JV4546 HISTORY - 20050731 GOOD USPSQD 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. JV4546 JV4546 STATION RECOVERY (2005) JV4546 JV4546'RECOVERY NOTE BY US POWER SQUADRON 2005 (FM) JV4546'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = SEPTEMBER 7, 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 - July 23, 2005 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 HISTORY - 20050723 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 JV3854 JV3854 STATION RECOVERY (2005) JV3854 JV3854'RECOVERY NOTE BY GEOCACHING 2005 (MAC) JV3854'EXCELLENT CONDITION IN SOLID ROCK 1 National Geodetic Survey, Retrieval Date = SEPTEMBER 7, 2005 JV6147 *********************************************************************** JV6147 DESIGNATION - SCHOOL RM 5 JV6147 PID - JV6147 JV6147 STATE/COUNTY- MD/MONTGOMERY JV6147 USGS QUAD - GERMANTOWN (1979) JV6147 JV6147 *CURRENT SURVEY CONTROL JV6147 ___________________________________________________________________ JV6147* NAD 83(1986)- 39 10 10. (N) 077 16 39. (W) SCALED JV6147* NAVD 88 - 155.956 (meters) 511.67 (feet) ADJUSTED JV6147 ___________________________________________________________________ JV6147 GEOID HEIGHT- -31.82 (meters) GEOID03 JV6147 DYNAMIC HT - 155.874 (meters) 511.40 (feet) COMP JV6147 MODELED GRAV- 980,096.8 (mgal) NAVD 88 JV6147 JV6147 VERT ORDER - FIRST CLASS I JV6147 JV6147.The horizontal coordinates were scaled from a topographic map and have JV6147.an estimated accuracy of +/- 6 seconds. JV6147 JV6147.The orthometric height was determined by differential leveling JV6147.and adjusted by the National Geodetic Survey in June 1991. JV6147 JV6147.The geoid height was determined by GEOID03. JV6147 JV6147.The dynamic height is computed by dividing the NAVD 88 JV6147.geopotential number by the normal gravity value computed on the JV6147.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV6147.degrees latitude (g = 980.6199 gals.). JV6147 JV6147.The modeled gravity was interpolated from observed gravity values. JV6147 JV6147; North East Units Estimated Accuracy JV6147;SPC MD - 166,850. 376,020. MT (+/- 180 meters Scaled) JV6147 JV6147 SUPERSEDED SURVEY CONTROL JV6147 JV6147.No superseded survey control is available for this station. JV6147 JV6147_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ032380(NAD 83) JV6147_MARKER: DR = REFERENCE MARK DISK JV6147_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV6147_SP_SET: CONCRETE POST JV6147_STAMPING: SCHOOL 1943 NO 5 1969 JV6147_MARK LOGO: CGS JV6147_MAGNETIC: N = NO MAGNETIC MATERIAL JV6147_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV6147+STABILITY: SURFACE MOTION JV6147_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV6147+SATELLITE: SATELLITE OBSERVATIONS - August 18, 1994 JV6147 JV6147 HISTORY - Date Condition Report By JV6147 HISTORY - 1969 MONUMENTED CGS JV6147 HISTORY - 19890918 GOOD NGS JV6147 HISTORY - 19900725 GOOD WSSC JV6147 HISTORY - 19911113 GOOD NGS JV6147 HISTORY - 19940818 GOOD NOS JV6147 HISTORY - 19950822 MARK NOT FOUND USPSQD JV6147 HISTORY - 20050716 GOOD GEOCAC JV6147 JV6147 STATION DESCRIPTION JV6147 JV6147'DESCRIBED BY NATIONAL GEODETIC SURVEY 1989 JV6147'1 KM (0.6 MI) NORTH-NORTHEAST ALONG STATE ROUTE 118 (GERMANTOWN ROAD) JV6147'FROM THE JUNCTION OF STATE ROUTE 117 (CLOPPER ROAD) IN OLD GERMANTOWN JV6147'TO THE GERMANTOWN ELEMENTARY SCHOOL ON THE LEFT, THENCE THROUGH THE JV6147'NORTHEASTERNMOST DRIVEWAY ENTRANCE, 0.03 KM (0.05 MI) NORTHWEST ALONG JV6147'THE DIRT TRACK ON THE RIGHT AND LEADING NORTHWEST TO A LOCKED GATE ON JV6147'THE LEFT (CONTACT THE GERMANTOWN ELEMENTARY SCHOOL, TELEPHONE NO. JV6147'301-353-8050, FOR ACCESS THROUGH THE GATE), IN THE PLAYGROUND AREA JV6147'BEHIND THE SCHOOL, NEAR THE SOUTHWEST BOUNDARY OF THE SCHOOL JV6147'PROPERTY, 2.23 M (6.8 FT) NORTHEAST OF A FENCE, 23.076 M (75.71 FT) JV6147'SOUTHEAST OF STATION SCHOOL RM 3 AND ABOUT 1.0 M (3 FT) HIGHER THAN JV6147'THE STATION. A STANDARD REFERENCE MARK DISK SET IN THE TOP OF A JV6147'ROUND CONCRETE POST, 33 CM (12 INCHES) IN DIAMETER, THAT IS FLUSH JV6147'WITH THE GROUND SURFACE. JV6147 JV6147 STATION RECOVERY (1990) JV6147 JV6147'RECOVERY NOTE BY WASH SUBURB SAN COMM 1990 JV6147'THE STATION IS LOCATED ABOUT 7.6 KM (4.7 MI) NORTHWEST OF JV6147'GAITHERSBURG, 11.8 KM (7.3 MI) ENE OF POOLESVILLE AND 7.9 KM JV6147'(4.9 MI) SOUTH OF CLARKSBURG, ON THE GROUNDS OF GERMANTOWN ELEMENTARY JV6147'SCHOOL. TO REACH THE STATION FROM THE BRIDGE WHERE MARYLAND ROUTE 118 JV6147'(DARNESTOWN - GERMANTOWN RD) CROSSES OVER INTERSTATE ROUTE 270, GO JV6147'SOUTHWEST ON ROUTE 118 2.6 KM (1.6 MI) TO AN ENTRANCE DRIVEWAY TO JV6147'GERMANTOWN ELEMENTARY SCHOOL. TURN RIGHT GO NORTHWEST ON GRAVEL JV6147'DRIVE 150 M (492.1 FT) TO GATE AT SCHOOL PLAYGROUND. THE STATION IS JV6147'2.0 M (6.6 FT) NORTHEAST OF A WIRE FENCE ALONG THE SOUTHWEST PROPERTY JV6147'LINE. OWNERSHIP--MONTGOMERY COUNTY DEPARTMENT OF EDUCATION THE JV6147'STATION MARK IS A USCGS REFERENCE MARK DISK STAMPED SCHOOL NO 5 1943 JV6147'1969 SET IN THE TOP OF A ROUND CONCRETE MONUMENT 0.3 M (1.0 FT) SET JV6147'FLUSH WITH THE SURFACE. IT IS 23.08 M (75.72 FT) SOUTHEAST OF JV6147'REFERENCE MARK 3 WHICH IS A STANDARD DISK STAMPED SCHOOL NO 3 1943 JV6147'1969 SET IN THE TOP OF A ROUND CONCRETE POST 0.3 M (1.0 FT) IN JV6147'DIAMETER. JV6147 JV6147 STATION RECOVERY (1991) JV6147 JV6147'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 JV6147'RECOVERED IN GOOD CONDITION. JV6147 JV6147 STATION RECOVERY (1994) JV6147 JV6147'RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1994 (RAH) JV6147'RECOVERED IN GOOD CONDITION. JV6147' JV6147'NOTE.. STATION IS IN A TREE LINE MAKING IT UNSUITABLE FOR GPS JV6147'OBSERVATIONS. JV6147' JV6147'ROAD AND FENCE CONSTRUCTION IS PLANNED WITHIN THE NEXT YEAR AND THE JV6147'STATION MAY BE IN DANGER. JV6147 JV6147 STATION RECOVERY (1995) JV6147 JV6147'RECOVERY NOTE BY US POWER SQUADRON 1995 JV6147'MARK NOT FOUND. JV6147 JV6147 STATION RECOVERY (2005) JV6147 JV6147'RECOVERY NOTE BY GEOCACHING 2005 (MAC) JV6147'RECOVERED IN GOOD CONDITION.