1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4236 *********************************************************************** JV4236 DESIGNATION - 17102 WSSC 1969 JV4236 PID - JV4236 JV4236 STATE/COUNTY- MD/MONTGOMERY JV4236 USGS QUAD - DAMASCUS (1993) JV4236 JV4236 *CURRENT SURVEY CONTROL JV4236 ___________________________________________________________________ JV4236* NAD 83(1991)- 39 18 27.45258(N) 077 11 51.97105(W) ADJUSTED JV4236* NAVD 88 - 235.2 (meters) 772. (feet) VERTCON JV4236 ___________________________________________________________________ JV4236 LAPLACE CORR- 3.01 (seconds) DEFLEC99 JV4236 GEOID HEIGHT- -31.88 (meters) GEOID99 JV4236 JV4236 HORZ ORDER - SECOND JV4236 JV4236.The horizontal coordinates were established by classical geodetic methods JV4236.and adjusted by the National Geodetic Survey in November 1994. JV4236 JV4236.The NAVD 88 height was computed by applying the VERTCON shift value to JV4236.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV4236 JV4236.The Laplace correction was computed from DEFLEC99 derived deflections. JV4236 JV4236.The geoid height was determined by GEOID99. JV4236 JV4236; North East Units Scale Converg. JV4236;SPC MD - 182,175.534 382,942.737 MT 0.99997819 -0 07 26.9 JV4236;SPC MD - 597,687.56 1,256,371.30 sFT 0.99997819 -0 07 26.9 JV4236;UTM 18 - 4,353,217.927 310,508.808 MT 1.00004213 -1 23 33.6 JV4236 JV4236 SUPERSEDED SURVEY CONTROL JV4236 JV4236 NAD 83(1991)- 39 18 27.45207(N) 077 11 51.97155(W) AD( ) 2 JV4236 NAD 83(1986)- 39 18 27.45225(N) 077 11 51.98186(W) AD( ) 2 JV4236 NAD 27 - 39 18 27.07522(N) 077 11 53.04291(W) AD( ) 2 JV4236 NGVD 29 (07/19/86) 235.4 (m) 772. (f) VERT ANG JV4236 JV4236.Superseded values are not recommended for survey control. JV4236.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4236.See file dsdata.txt to determine how the superseded data were derived. JV4236 JV4236_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1050953218(NAD 83) JV4236_MARKER: I = METAL ROD JV4236_SETTING: 0 = UNSPECIFIED SETTING JV4236_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV4236_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4236+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4236 JV4236 HISTORY - Date Condition Report By JV4236 HISTORY - 1969 MONUMENTED WSSC JV4236 HISTORY - 20031102 GOOD USPSQD JV4236 JV4236 STATION DESCRIPTION JV4236 JV4236'DESCRIBED BY WASH SUBURB SAN COMM 1969 JV4236'THE STATION IS ABOUT 1-1/2 MILES NORTH OF DAMASCUS AND 1/2 JV4236'MILE SOUTH OF CLAGGETTSVILLE. JV4236' JV4236'TO REACH THE STATION FROM THE INTERSECTION OF ROUTE 27 AND JV4236'ROUTE 108 IN DAMASCUS, GO NORTH ON ROUTE 27 FOR 1.6 MILES TO JV4236'HURLEYS STORE AND THE STATION IS ON THE LEFT. JV4236' JV4236'THE STATION MARK IS A CONCRETE MONUMENT WITH AN IRON ROD JV4236'CENTER AND IS 2 INCHES BELOW THE SURFACE. IT IS 45.50 FEET JV4236'NORTH OF POLE NO. F-2844, 52.45 FEET SOUTHWEST OF A POWER JV4236'LINE POLE, 49.96 FEET WEST OF POLE NO. 67, AND 48.37 FEET JV4236'SOUTHEAST OF THE NORTHEAST CORNER OF THE PORCH ON HOUSE 27504. JV4236 JV4236 STATION RECOVERY (2003) JV4236 JV4236'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4236'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV7097 *********************************************************************** JV7097 CBN - This is a Cooperative Base Network Control Station. JV7097 DESIGNATION - 20305 JV7097 PID - JV7097 JV7097 STATE/COUNTY- MD/MONTGOMERY JV7097 USGS QUAD - ROCKVILLE (1984) JV7097 JV7097 *CURRENT SURVEY CONTROL JV7097 ___________________________________________________________________ JV7097* NAD 83(1991)- 39 01 00.31786(N) 077 12 18.26226(W) ADJUSTED JV7097* NAVD 88 - 111.304 (meters) 365.17 (feet) ADJUSTED JV7097 ___________________________________________________________________ JV7097 X - 1,098,943.607 (meters) COMP JV7097 Y - -4,839,001.414 (meters) COMP JV7097 Z - 3,993,812.529 (meters) COMP JV7097 LAPLACE CORR- -1.11 (seconds) DEFLEC99 JV7097 ELLIP HEIGHT- 79.64 (meters) (02/12/02) GPS OBS JV7097 GEOID HEIGHT- -31.70 (meters) GEOID99 JV7097 DYNAMIC HT - 111.246 (meters) 364.98 (feet) COMP JV7097 MODELED GRAV- 980,107.4 (mgal) NAVD 88 JV7097 JV7097 HORZ ORDER - A JV7097 VERT ORDER - SECOND CLASS I JV7097 ELLP ORDER - FOURTH CLASS I JV7097 JV7097.The horizontal coordinates were established by GPS observations JV7097.and adjusted by the National Geodetic Survey in February 2002. JV7097 JV7097.The orthometric height was determined by differential leveling JV7097.and adjusted by the National Geodetic Survey in November 2003. JV7097.No vertical observational check was made to the station. JV7097 JV7097.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7097 JV7097.The Laplace correction was computed from DEFLEC99 derived deflections. JV7097 JV7097.The ellipsoidal height was determined by GPS observations JV7097.and is referenced to NAD 83. JV7097 JV7097.The geoid height was determined by GEOID99. JV7097 JV7097.The dynamic height is computed by dividing the NAVD 88 JV7097.geopotential number by the normal gravity value computed on the JV7097.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV7097.degrees latitude (g = 980.6199 gals.). JV7097 JV7097.The modeled gravity was interpolated from observed gravity values. JV7097 JV7097; North East Units Scale Converg. JV7097;SPC MD - 149,886.130 382,240.319 MT 0.99995286 -0 07 43.4 JV7097;SPC MD - 491,751.41 1,254,066.78 sFT 0.99995286 -0 07 43.4 JV7097;SPC VA N - 2,150,652.156 3,612,141.631 MT 0.99997261 +0 48 29.5 JV7097;UTM 18 - 4,320,949.232 309,094.038 MT 1.00004878 -1 23 19.0 JV7097 JV7097 SUPERSEDED SURVEY CONTROL JV7097 JV7097 NAD 83(1991)- 39 01 00.31745(N) 077 12 18.26292(W) AD( ) 1 JV7097 ELLIP H (11/14/94) 79.58 (m) GP( ) 4 2 JV7097 NAD 83(1991)- 39 01 00.31724(N) 077 12 18.26368(W) AD( ) 1 JV7097 ELLIP H (01/11/94) 79.56 (m) GP( ) 4 1 JV7097 JV7097.Superseded values are not recommended for survey control. JV7097.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7097.See file dsdata.txt to determine how the superseded data were derived. JV7097 JV7097_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0909420949(NAD 83) JV7097_MARKER: DD = SURVEY DISK JV7097_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7097_STAMPING: T.S. 20305 MC JV7097_MARK LOGO: MSI JV7097_MAGNETIC: O = OTHER; SEE DESCRIPTION JV7097_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7097+STABILITY: SURFACE MOTION JV7097_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7097+SATELLITE: SATELLITE OBSERVATIONS - August 17, 2001 JV7097 JV7097 HISTORY - Date Condition Report By JV7097 HISTORY - 1993 MONUMENTED MSI JV7097 HISTORY - 20000501 GOOD MDSHA JV7097 HISTORY - 20010817 GOOD MDSHA JV7097 JV7097 STATION DESCRIPTION JV7097 JV7097'DESCRIBED BY MEASUREMENT SCIENCE INCORPORATED 1993 JV7097'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY JV7097'0.2 MI (0.3 KM) EAST OF THE TOWN OF POTOMAC. TO REACH THE STATION JV7097'FROM THE INTERSECTION OF FALLS ROAD (S.R. 189) AND RIVER ROAD (S.R. JV7097'190) IN POTOMAC, PROCEED SOUTHEAST ALONG RIVER ROAD FOR 0.2 MI JV7097'(0.3 KM) TO INTERSECTION WITH HALL ROAD. TURN LEFT AND TRAVEL JV7097'NORTHEAST ON HALL ROAD FOR APPROXIMATELY 300 FT (91.4 M) TO THE JV7097'INTERSECTION WITH HALL COURT, AND STATION ON THE LEFT, IN THE JV7097'NORTHWEST CORNER OF THE INTERSECTION. JV7097'THE STATION IS A WSSC SURVEY DISK SET IN THE TOP OF A CONCRETE JV7097'MONUMENT, APPROXIMATELY FLUSH WITH THE GROUND SURFACE, AND STAMPED JV7097'T.S. 20305 MC. THE DISK IS LOCATED 18.0 FT (5.5 M) NORTHEAST OF THE JV7097'CENTER LINE OF HALL COURT, 25.6 FT (7.8 M) NORTHWEST OF THE CENTER JV7097'LINE OF HALL ROAD, AND 7.8 FT (2.4 M) WEST OF A METAL LIGHT POLE. JV7097 JV7097 STATION RECOVERY (2000) JV7097 JV7097'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (SFK) JV7097'RECOVERED AS DESCRIBED. JV7097 JV7097 STATION RECOVERY (2001) JV7097 JV7097'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV7097'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4422 *********************************************************************** JV4422 DESIGNATION - AIRPORT BCN MONTGOMERY CO APT JV4422 PID - JV4422 JV4422 STATE/COUNTY- MD/MONTGOMERY JV4422 USGS QUAD - GAITHERSBURG (1979) JV4422 JV4422 *CURRENT SURVEY CONTROL JV4422 ___________________________________________________________________ JV4422* NAD 83(1991)- 39 10 06.00922(N) 077 09 27.48997(W) ADJUSTED JV4422* NAVD 88 - JV4422 ___________________________________________________________________ JV4422 LAPLACE CORR- -0.02 (seconds) DEFLEC99 JV4422 GEOID HEIGHT- -31.73 (meters) GEOID99 JV4422 JV4422 HORZ ORDER - THIRD JV4422 JV4422.This mark is at Montgomery Co Airpark (GAI) JV4422 JV4422.The horizontal coordinates were established by classical geodetic methods JV4422.and adjusted by the National Geodetic Survey in November 1994. JV4422 JV4422 JV4422.The Laplace correction was computed from DEFLEC99 derived deflections. JV4422 JV4422.The geoid height was determined by GEOID99. JV4422 JV4422; North East Units Scale Converg. JV4422;SPC MD - 166,705.323 386,377.480 MT 0.99996285 -0 05 56.2 JV4422;SPC MD - 546,932.38 1,267,640.12 sFT 0.99996285 -0 05 56.2 JV4422;UTM 18 - 4,337,674.575 313,601.014 MT 1.00002783 -1 21 47.4 JV4422 JV4422 SUPERSEDED SURVEY CONTROL JV4422 JV4422 NAD 83(1991)- 39 10 06.00892(N) 077 09 27.48997(W) AD( ) 4 JV4422 NAD 83(1986)- 39 10 06.00877(N) 077 09 27.50023(W) AD( ) 4 JV4422 NAD 27 - 39 10 05.62275(N) 077 09 28.56851(W) AD( ) 3 JV4422 JV4422.Superseded values are not recommended for survey control. JV4422.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4422.See file dsdata.txt to determine how the superseded data were derived. JV4422 JV4422_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1360137675(NAD 83) JV4422_MARKER: 21 = AIRPORT BEACON JV4422_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4422+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4422 JV4422 HISTORY - Date Condition Report By JV4422 HISTORY - 1970 FIRST OBSERVED NGS JV4422 HISTORY - 1983 GOOD USPSQD JV4422 HISTORY - 19911107 GOOD NGS JV4422 HISTORY - 20031102 GOOD USPSQD JV4422 JV4422 STATION DESCRIPTION JV4422 JV4422'DESCRIBED BY NATIONAL GEODETIC SURVEY 1970 (JBJ) JV4422'THE STATION IS THE REVOLVING LIGHT OF THE MONTGOMERY COUNTY JV4422'AIRPORT BEACON, MOUNTED ON THE SOUTHWEST CORNER OF A CONCRETE JV4422'BLOCK BUILDING, LOCATED 0.1 MILE SOUTHWEST OF THE INTERSECTION JV4422'OF STATE HIGHWAY 124 AND AIR PARK ROAD AND AT 18960 LAYTONSVILLE JV4422'ROAD. THE OVERALL HEIGHT IS 23 FEET. JV4422 JV4422 STATION RECOVERY (1983) JV4422 JV4422'RECOVERY NOTE BY US POWER SQUADRON 1983 (RWS) JV4422'NO MARKS STATION RECOVERED GOOD. JV4422' JV4422'DIRECTED TO POSITION BY AIRPORT MANAGER. NO APPARENT CHANGES JV4422'FROM ORIGINAL DISCRIPTION. JV4422 JV4422 STATION RECOVERY (1991) JV4422 JV4422'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991 JV4422'STATION IS LOCATED ATOP THE SOUTH ONE OF THREE HANGARS AT THE WEST END JV4422'OF THE RAMP EAST OF THE TERMINAL BUILDING. IT IS TWO-LIGHT BEACON JV4422'PAINTED RED ATOP A SMALL PLATFORM AT THE NORTH END OF THE BUILDING. JV4422'THE POINT INTERSECTED WAS THE SPINDLE BENEATH THE LIGHTS. JV4422 JV4422 STATION RECOVERY (2003) JV4422 JV4422'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4422'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4420 *********************************************************************** JV4420 DESIGNATION - BRINK WSSC TANK JV4420 PID - JV4420 JV4420 STATE/COUNTY- MD/MONTGOMERY JV4420 USGS QUAD - GAITHERSBURG (1979) JV4420 JV4420 *CURRENT SURVEY CONTROL JV4420 ___________________________________________________________________ JV4420* NAD 83(1991)- 39 12 45.43817(N) 077 14 17.53556(W) ADJUSTED JV4420* NAVD 88 - JV4420 ___________________________________________________________________ JV4420 LAPLACE CORR- 2.30 (seconds) DEFLEC99 JV4420 GEOID HEIGHT- -31.81 (meters) GEOID99 JV4420 JV4420 HORZ ORDER - THIRD JV4420 JV4420.The horizontal coordinates were established by classical geodetic methods JV4420.and adjusted by the National Geodetic Survey in November 1994. JV4420 JV4420 JV4420.The Laplace correction was computed from DEFLEC99 derived deflections. JV4420 JV4420.The geoid height was determined by GEOID99. JV4420 JV4420; North East Units Scale Converg. JV4420;SPC MD - 171,636.802 379,427.817 MT 0.99996709 -0 08 58.2 JV4420;SPC MD - 563,111.74 1,244,839.43 sFT 0.99996709 -0 08 58.2 JV4420;UTM 18 - 4,342,758.686 306,761.382 MT 1.00005980 -1 24 55.5 JV4420 JV4420 SUPERSEDED SURVEY CONTROL JV4420 JV4420 NAD 83(1991)- 39 12 45.43756(N) 077 14 17.53543(W) AD( ) 4 JV4420 NAD 83(1986)- 39 12 45.43653(N) 077 14 17.54665(W) AD( ) 4 JV4420 NAD 27 - 39 12 45.05638(N) 077 14 18.60301(W) AD( ) 3 JV4420 JV4420.Superseded values are not recommended for survey control. JV4420.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4420.See file dsdata.txt to determine how the superseded data were derived. JV4420 JV4420_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0676142759(NAD 83) JV4420_MARKER: 53 = ELEVATED TANK JV4420_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4420+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4420 JV4420 HISTORY - Date Condition Report By JV4420 HISTORY - 1969 FIRST OBSERVED CGS JV4420 HISTORY - 1986 GOOD NGS JV4420 HISTORY - 20031102 GOOD USPSQD JV4420 JV4420 STATION DESCRIPTION JV4420 JV4420'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4420'THE STATION IS THE CENTER OF THE FEEDER PIPE OF THE 120 FOOT JV4420'HIGH BRINK WASHINGTON SUBURBAN SANITARY COMMISSION ELEVATED JV4420'TANK, LOCATED IN THE COMMUNITY OF BRINK. JV4420' JV4420'A TRAVERSE CONNECTION WAS MADE TO TRIANGULATION STATION BRINK, JV4420'THE DISTANCE BEING 96.11 FEET OR 29.294 METERS WEST-NORTHWEST OF JV4420'TRIANGULATION STATION BRINK. JV4420' JV4420'THE CENTER OF THE TOP OF THE TANK WAS ALSO INTERSECTED. JV4420' JV4420'TO REACH THE STATION FROM WHERE STATE HIGHWAY 118 CROSSES JV4420'INTERSTATE HIGHWAY 270, GO NORTH ON HIGHWAY 118 FOR 1.0 MILE JV4420'TO A T INTERSECTION, TURN LEFT AND GO NORTHWEST ON STATE HIGHWAY JV4420'355 FOR 0.45 MILE TO A SIDE ROAD RIGHT. TURN RIGHT AND GO NORTH JV4420'ON STATE HIGHWAY 27 FOR 0.85 MILE TO THE ENTRANCE OF THE WATER TANK JV4420'ON THE RIGHT. TURN RIGHT, PASSING THROUGH 2 LOCKED GATES AND GO JV4420'EASTERLY FOR 0.05 MILE TO THE STATION INSIDE A FENCED AREA. JV4420 JV4420 STATION RECOVERY (1986) JV4420 JV4420'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986 (RGP) JV4420'RECOVERED IN GOOD CONDITION. JV4420 JV4420 STATION RECOVERY (2003) JV4420 JV4420'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4420'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4221 *********************************************************************** JV4221 DESIGNATION - CEDAR HEIGHTS WSSC TANK JV4221 PID - JV4221 JV4221 STATE/COUNTY- MD/MONTGOMERY JV4221 USGS QUAD - DAMASCUS (1993) JV4221 JV4221 *CURRENT SURVEY CONTROL JV4221 ___________________________________________________________________ JV4221* NAD 83(1991)- 39 15 11.78334(N) 077 13 40.01764(W) ADJUSTED JV4221* NAVD 88 - JV4221 ___________________________________________________________________ JV4221 LAPLACE CORR- 2.80 (seconds) DEFLEC99 JV4221 GEOID HEIGHT- -31.84 (meters) GEOID99 JV4221 JV4221 HORZ ORDER - THIRD JV4221 JV4221.The horizontal coordinates were established by classical geodetic methods JV4221.and adjusted by the National Geodetic Survey in November 1994. JV4221 JV4221 JV4221.The Laplace correction was computed from DEFLEC99 derived deflections. JV4221 JV4221.The geoid height was determined by GEOID99. JV4221 JV4221; North East Units Scale Converg. JV4221;SPC MD - 176,147.471 380,339.126 MT 0.99997150 -0 08 34.7 JV4221;SPC MD - 577,910.49 1,247,829.28 sFT 0.99997150 -0 08 34.7 JV4221;UTM 18 - 4,347,248.506 307,772.257 MT 1.00005499 -1 24 36.2 JV4221 JV4221 SUPERSEDED SURVEY CONTROL JV4221 JV4221 NAD 83(1991)- 39 15 11.78287(N) 077 13 40.01759(W) AD( ) 4 JV4221 NAD 83(1986)- 39 15 11.78227(N) 077 13 40.02874(W) AD( ) 4 JV4221 NAD 27 - 39 15 11.40336(N) 077 13 41.08530(W) AD( ) 3 JV4221 JV4221.Superseded values are not recommended for survey control. JV4221.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4221.See file dsdata.txt to determine how the superseded data were derived. JV4221 JV4221_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0777247249(NAD 83) JV4221_MARKER: 51 = TANK JV4221_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4221+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4221 JV4221 HISTORY - Date Condition Report By JV4221 HISTORY - 1969 FIRST OBSERVED CGS JV4221 HISTORY - 20031102 GOOD USPSQD JV4221 JV4221 STATION DESCRIPTION JV4221 JV4221'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4221'THE STATION IS ABOUT 2-1/2 MILES SOUTH-SOUTHWEST OF DAMASCUS JV4221'AND 1/2 MILE NORTH-NORTHEAST OF THE VILLAGE OF CEDAR GROVE. JV4221' JV4221'THE STATION IS THE CENTER OF THE BASE OF A WATER TANK, NOT JV4221'ELEVATED, THAT IS APPROXIMATELY 45 FEET HIGH. JV4221' JV4221'A TRAVERSE CONNECTION WAS MADE FROM TRIANGULATION STATION CEDAR JV4221'HEIGHTS, THE DISTANCE BEING 140.92 FEET, (42.952 METERS) SOUTHEAST JV4221'OF STATION CEDAR HEIGHTS. JV4221' JV4221'THIS STATION WAS NOT INTERSECTED. JV4221 JV4221 STATION RECOVERY (2003) JV4221 JV4221'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4221'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4457 *********************************************************************** JV4457 DESIGNATION - CLARKSBURG METH CH SPIRE JV4457 PID - JV4457 JV4457 STATE/COUNTY- MD/MONTGOMERY JV4457 USGS QUAD - GERMANTOWN (1979) JV4457 JV4457 *CURRENT SURVEY CONTROL JV4457 ___________________________________________________________________ JV4457* NAD 83(1991)- 39 14 27.15562(N) 077 16 46.59894(W) ADJUSTED JV4457* NAVD 88 - JV4457 ___________________________________________________________________ JV4457 LAPLACE CORR- 3.91 (seconds) DEFLEC99 JV4457 GEOID HEIGHT- -31.91 (meters) GEOID99 JV4457 JV4457 HORZ ORDER - THIRD JV4457 JV4457.The horizontal coordinates were established by classical geodetic methods JV4457.and adjusted by the National Geodetic Survey in November 1994. JV4457 JV4457 JV4457.The Laplace correction was computed from DEFLEC99 derived deflections. JV4457 JV4457.The geoid height was determined by GEOID99. JV4457 JV4457; North East Units Scale Converg. JV4457;SPC MD - 174,783.678 375,861.421 MT 0.99997010 -0 10 31.8 JV4457;SPC MD - 573,436.12 1,233,138.68 sFT 0.99997010 -0 10 31.8 JV4457;UTM 18 - 4,345,983.940 303,265.062 MT 1.00007658 -1 26 33.0 JV4457 JV4457 SUPERSEDED SURVEY CONTROL JV4457 JV4457 NAD 83(1991)- 39 14 27.15487(N) 077 16 46.59862(W) AD( ) 4 JV4457 NAD 83(1986)- 39 14 27.15512(N) 077 16 46.60955(W) AD( ) 4 JV4457 NAD 27 - 39 14 26.77451(N) 077 16 47.66067(W) AD( ) 3 JV4457 JV4457.Superseded values are not recommended for survey control. JV4457.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4457.See file dsdata.txt to determine how the superseded data were derived. JV4457 JV4457_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0326545984(NAD 83) JV4457_MARKER: 90 = CHURCH SPIRE JV4457_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4457+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4457 JV4457 HISTORY - Date Condition Report By JV4457 HISTORY - 1969 FIRST OBSERVED CGS JV4457 HISTORY - 1983 GOOD USPSQD JV4457 HISTORY - 20031102 GOOD USPSQD JV4457 JV4457 STATION DESCRIPTION JV4457 JV4457'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4457'THE STATION IS THE APEX OF THE CLARKSBURG METHODIST CHURCH JV4457'SPIRE. IT IS ABOUT 67 FEET ABOVE THE GROUND. JV4457' JV4457'THE STATION IS LOCATED 0.15 MILE EAST OF THE INTERSECTION OF STATE JV4457'HIGHWAY 121 AND STATE HIGHWAY 355. JV4457 JV4457 STATION RECOVERY (1983) JV4457 JV4457'RECOVERY NOTE BY US POWER SQUADRON 1983 (RWS) JV4457'STATION RECOVERED GOOD. JV4457' JV4457'NO APPARENT CHANGES FROM ORIGINAL DESCRIPTION. JV4457 JV4457 STATION RECOVERY (2003) JV4457 JV4457'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4457'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV2202 *********************************************************************** JV2202 DESIGNATION - CLOPPER BRIDGE BORR JV2202 PID - JV2202 JV2202 STATE/COUNTY- MD/MONTGOMERY JV2202 USGS QUAD - GAITHERSBURG (1979) JV2202 JV2202 *CURRENT SURVEY CONTROL JV2202 ___________________________________________________________________ JV2202* NAD 83(1986)- 39 09 16. (N) 077 14 18. (W) SCALED JV2202* NAVD 88 - 119.71 (+/-2cm) 392.7 (feet) VERTCON JV2202 ___________________________________________________________________ JV2202 GEOID HEIGHT- -31.76 (meters) GEOID99 JV2202 JV2202 VERT ORDER - ? (See Below) JV2202 JV2202.The horizontal coordinates were scaled from a topographic map and have JV2202.an estimated accuracy of +/- 6 seconds. JV2202 JV2202.The NAVD 88 height was computed by applying the VERTCON shift value to JV2202.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2202.The vertical order pertains to the NGVD 29 superseded value. JV2202 JV2202.The geoid height was determined by GEOID99. JV2202 JV2202; North East Units Estimated Accuracy JV2202;SPC MD - 165,180. 379,400. MT (+/- 180 meters Scaled) JV2202 JV2202 SUPERSEDED SURVEY CONTROL JV2202 JV2202 NGVD 29 (??/??/??) 119.925 (m) 393.45 (f) ADJUSTED ? JV2202 JV2202.Superseded values are not recommended for survey control. JV2202.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2202.See file dsdata.txt to determine how the superseded data were derived. JV2202 JV2202_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ065363(NAD 83) JV2202_MARKER: Q = CHISELED SQUARE JV2202_SETTING: 36 = BRIDGE JV2202_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV2202 JV2202 HISTORY - Date Condition Report By JV2202 HISTORY - UNK MONUMENTED BORR JV2202 HISTORY - 1938 GOOD CGS JV2202 HISTORY - 20031102 MARK NOT FOUND USPSQD JV2202 JV2202 STATION DESCRIPTION JV2202 JV2202'DESCRIBED BY COAST AND GEODETIC SURVEY 1938 JV2202'AT CLOPPER. JV2202'AT COPPER, MONTGOMERY COUNTY, ON THE BALTIMORE AND OHIO RAILROAD, JV2202'200 FEET SOUTHEAST OF THE STATION, 120 FEET SOUTHEAST OF THE JV2202'PASSENGER PLATFORM, ON THE SOUTHEAST CORNER OF BRIDGE 25-A, JV2202'AND 2.5 FEET SOUTHEAST OF BENCH MARK N 34 DESCRIBED ABOVE. JV2202'A CHISELED SQUARE. JV2202 JV2202 STATION RECOVERY (2003) JV2202 JV2202'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV2202'MARK NOT FOUND. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4225 *********************************************************************** JV4225 DESIGNATION - DAMASCUS COUNTY HWY DEPT MAST JV4225 PID - JV4225 JV4225 STATE/COUNTY- MD/MONTGOMERY JV4225 USGS QUAD - DAMASCUS (1993) JV4225 JV4225 *CURRENT SURVEY CONTROL JV4225 ___________________________________________________________________ JV4225* NAD 83(1991)- 39 17 10.99350(N) 077 12 24.90998(W) ADJUSTED JV4225* NAVD 88 - JV4225 ___________________________________________________________________ JV4225 LAPLACE CORR- 2.92 (seconds) DEFLEC99 JV4225 GEOID HEIGHT- -31.85 (meters) GEOID99 JV4225 JV4225 HORZ ORDER - THIRD JV4225 JV4225.The horizontal coordinates were established by classical geodetic methods JV4225.and adjusted by the National Geodetic Survey in November 1994. JV4225 JV4225 JV4225.The Laplace correction was computed from DEFLEC99 derived deflections. JV4225 JV4225.The geoid height was determined by GEOID99. JV4225 JV4225; North East Units Scale Converg. JV4225;SPC MD - 179,819.407 382,148.249 MT 0.99997547 -0 07 47.5 JV4225;SPC MD - 589,957.50 1,253,764.71 sFT 0.99997547 -0 07 47.5 JV4225;UTM 18 - 4,350,879.804 309,662.309 MT 1.00004609 -1 23 52.2 JV4225 JV4225 SUPERSEDED SURVEY CONTROL JV4225 JV4225 NAD 83(1991)- 39 17 10.99291(N) 077 12 24.91042(W) AD( ) 4 JV4225 NAD 83(1986)- 39 17 10.99320(N) 077 12 24.92095(W) AD( ) 4 JV4225 NAD 27 - 39 17 10.61517(N) 077 12 25.98104(W) AD( ) 3 JV4225 JV4225.Superseded values are not recommended for survey control. JV4225.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4225.See file dsdata.txt to determine how the superseded data were derived. JV4225 JV4225_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0966250880(NAD 83) JV4225_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4225+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4225 JV4225 HISTORY - Date Condition Report By JV4225 HISTORY - 1969 FIRST OBSERVED CGS JV4225 HISTORY - 19950621 GOOD USPSQD JV4225 HISTORY - 20031102 GOOD USPSQD JV4225 JV4225 STATION DESCRIPTION JV4225 JV4225'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4225'THE STATION IS THE RED LIGHT ON TOP OF THE DAMASCUS COUNTY JV4225'HIGHWAY DEPARTMENT MAST KGA 241. IT IS ABOUT 200 FEET ABOVE JV4225'THE GROUND. JV4225' JV4225'THE STATION IS LOCATED 0.2 MILE SOUTHWEST OF THE JUNCTION OF JV4225'STATE HIGHWAY 27 AND STATE HIGHWAY 108. JV4225 JV4225 STATION RECOVERY (1995) JV4225 JV4225'RECOVERY NOTE BY US POWER SQUADRON 1995 JV4225'RECOVERED IN GOOD CONDITION. JV4225 JV4225 STATION RECOVERY (2003) JV4225 JV4225'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4225'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4227 *********************************************************************** JV4227 DESIGNATION - DAMASCUS METH CH SPIRE JV4227 PID - JV4227 JV4227 STATE/COUNTY- MD/MONTGOMERY JV4227 USGS QUAD - DAMASCUS (1993) JV4227 JV4227 *CURRENT SURVEY CONTROL JV4227 ___________________________________________________________________ JV4227* NAD 83(1991)- 39 17 08.99002(N) 077 12 02.06193(W) ADJUSTED JV4227* NAVD 88 - JV4227 ___________________________________________________________________ JV4227 LAPLACE CORR- 2.56 (seconds) DEFLEC99 JV4227 GEOID HEIGHT- -31.84 (meters) GEOID99 JV4227 JV4227 HORZ ORDER - THIRD JV4227 JV4227.The horizontal coordinates were established by classical geodetic methods JV4227.and adjusted by the National Geodetic Survey in November 1994. JV4227 JV4227 JV4227.The Laplace correction was computed from DEFLEC99 derived deflections. JV4227 JV4227.The geoid height was determined by GEOID99. JV4227 JV4227; North East Units Scale Converg. JV4227;SPC MD - 179,756.401 382,695.665 MT 0.99997540 -0 07 33.2 JV4227;SPC MD - 589,750.79 1,255,560.69 sFT 0.99997540 -0 07 33.2 JV4227;UTM 18 - 4,350,804.695 310,208.235 MT 1.00004353 -1 23 37.7 JV4227 JV4227 SUPERSEDED SURVEY CONTROL JV4227 JV4227 NAD 83(1991)- 39 17 08.98953(N) 077 12 02.06249(W) AD( ) 4 JV4227 NAD 83(1986)- 39 17 08.98977(N) 077 12 02.07298(W) AD( ) 4 JV4227 NAD 27 - 39 17 08.61244(N) 077 12 03.13371(W) AD( ) 3 JV4227 JV4227.Superseded values are not recommended for survey control. JV4227.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4227.See file dsdata.txt to determine how the superseded data were derived. JV4227 JV4227_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1020850805(NAD 83) JV4227_MARKER: 90 = CHURCH SPIRE JV4227_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4227+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4227 JV4227 HISTORY - Date Condition Report By JV4227 HISTORY - 1969 FIRST OBSERVED CGS JV4227 HISTORY - 19950621 GOOD USPSQD JV4227 HISTORY - 20031102 GOOD USPSQD JV4227 JV4227 STATION DESCRIPTION JV4227 JV4227'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4227'STATION IS THE UNITED METHODIST CHURCH SPIRE. THE POINT OBSERVED JV4227'WAS THE CENTER OF THE TOP OF THE SILVER CROSS ON THE DARK GREY JV4227'SPIRE. IT IS ABOUT 115 FEET ABOVE THE GROUND. JV4227' JV4227'IT IS LOCATED 0.1 MILE SOUTH OF THE JUNCTION OF STATE ROUTE 124 JV4227'AND STATE HIGHWAY 27 IN DAMASCUS. JV4227 JV4227 STATION RECOVERY (1995) JV4227 JV4227'RECOVERY NOTE BY US POWER SQUADRON 1995 JV4227'RECOVERED IN GOOD CONDITION. JV4227 JV4227 STATION RECOVERY (2003) JV4227 JV4227'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4227'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4223 *********************************************************************** JV4223 DESIGNATION - DAMASCUS MUN TANK JV4223 PID - JV4223 JV4223 STATE/COUNTY- MD/MONTGOMERY JV4223 USGS QUAD - DAMASCUS (1993) JV4223 JV4223 *CURRENT SURVEY CONTROL JV4223 ___________________________________________________________________ JV4223* NAD 83(1991)- 39 17 11.37163(N) 077 12 25.60428(W) ADJUSTED JV4223* NAVD 88 - JV4223 ___________________________________________________________________ JV4223 LAPLACE CORR- 2.94 (seconds) DEFLEC99 JV4223 GEOID HEIGHT- -31.85 (meters) GEOID99 JV4223 JV4223 HORZ ORDER - THIRD JV4223 JV4223.The horizontal coordinates were established by classical geodetic methods JV4223.and adjusted by the National Geodetic Survey in November 1994. JV4223 JV4223 JV4223.The Laplace correction was computed from DEFLEC99 derived deflections. JV4223 JV4223.The geoid height was determined by GEOID99. JV4223 JV4223; North East Units Scale Converg. JV4223;SPC MD - 179,831.105 382,131.637 MT 0.99997548 -0 07 48.0 JV4223;SPC MD - 589,995.88 1,253,710.21 sFT 0.99997548 -0 07 48.0 JV4223;UTM 18 - 4,350,891.868 309,645.958 MT 1.00004616 -1 23 52.7 JV4223 JV4223 SUPERSEDED SURVEY CONTROL JV4223 JV4223 NAD 83(1991)- 39 17 11.37106(N) 077 12 25.60467(W) AD( ) 4 JV4223 NAD 83(1986)- 39 17 11.37131(N) 077 12 25.61521(W) AD( ) 4 JV4223 NAD 27 - 39 17 10.99324(N) 077 12 26.67649(W) AD( ) 3 JV4223 JV4223.Superseded values are not recommended for survey control. JV4223.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4223.See file dsdata.txt to determine how the superseded data were derived. JV4223 JV4223_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0964650892(NAD 83) JV4223_MARKER: 53 = ELEVATED TANK JV4223_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4223+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4223 JV4223 HISTORY - Date Condition Report By JV4223 HISTORY - 1969 FIRST OBSERVED CGS JV4223 HISTORY - 19950621 GOOD USPSQD JV4223 HISTORY - 20031102 GOOD USPSQD JV4223 JV4223 STATION DESCRIPTION JV4223 JV4223'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4223'THE STATION IS THE CENTER OF THE TOP OF THE DAMASCUS MUNICIPAL JV4223'TANK. IT IS A DOUBLE-ELIPSOIDAL TANK ABOUT 109 FEET ABOVE THE JV4223'GROUND. JV4223' JV4223'THE STATION IS LOCATED 0.2 MILE SOUTHWEST OF THE INTERSECTION OF JV4223'STATE HIGHWAY 108 AND STATE HIGHWAY 27 IN DAMASCUS. JV4223 JV4223 STATION RECOVERY (1995) JV4223 JV4223'RECOVERY NOTE BY US POWER SQUADRON 1995 JV4223'RECOVERED IN GOOD CONDITION. JV4223 JV4223 STATION RECOVERY (2003) JV4223 JV4223'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4223'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 AA9252 *********************************************************************** AA9252 SACS - This is a Secondary Airport Control Station. AA9252 DESIGNATION - GAI A AA9252 PID - AA9252 AA9252 STATE/COUNTY- MD/MONTGOMERY AA9252 USGS QUAD - GAITHERSBURG (1979) AA9252 AA9252 *CURRENT SURVEY CONTROL AA9252 ___________________________________________________________________ AA9252* NAD 83(1991)- 39 09 55.33028(N) 077 09 42.89144(W) ADJUSTED AA9252* NAVD 88 - 161.25 (meters) 529.0 (feet) GPS OBS AA9252 ___________________________________________________________________ AA9252 X - 1,100,285.290 (meters) COMP AA9252 Y - -4,828,066.541 (meters) COMP AA9252 Z - 4,006,649.645 (meters) COMP AA9252 LAPLACE CORR- 0.19 (seconds) DEFLEC99 AA9252 ELLIP HEIGHT- 129.55 (meters) (08/19/02) GPS OBS AA9252 GEOID HEIGHT- -31.73 (meters) GEOID99 AA9252 AA9252 HORZ ORDER - FIRST AA9252 ELLP ORDER - FOURTH CLASS II AA9252 AA9252.This mark is at Montgomery Co Airpark (GAI) AA9252 AA9252.The horizontal coordinates were established by GPS observations AA9252.and adjusted by the National Geodetic Survey in April 1998. AA9252 AA9252.The orthometric height was determined by GPS observations and a AA9252.high-resolution geoid model. AA9252 AA9252.GPS derived orthometric heights for airport stations designated as AA9252.PACS or SACS are published to 2 decimal places. This maintains AA9252.centimeter relative accuracy between the PACS and SACS. It does AA9252.not indicate centimeter accuracy relative to other marks which are AA9252.part of the NAVD 88 network. AA9252 AA9252.The X, Y, and Z were computed from the position and the ellipsoidal ht. AA9252 AA9252.The Laplace correction was computed from DEFLEC99 derived deflections. AA9252 AA9252.The ellipsoidal height was determined by GPS observations AA9252.and is referenced to NAD 83. AA9252 AA9252.The geoid height was determined by GEOID99. AA9252 AA9252; North East Units Scale Converg. AA9252;SPC MD - 166,376.660 386,007.186 MT 0.99996259 -0 06 05.8 AA9252;SPC MD - 545,854.09 1,266,425.24 sFT 0.99996259 -0 06 05.8 AA9252;UTM 18 - 4,337,354.141 313,223.535 MT 1.00002956 -1 21 56.8 AA9252 AA9252 SUPERSEDED SURVEY CONTROL AA9252 AA9252 ELLIP H (04/02/98) 129.57 (m) GP( ) 4 2 AA9252 NAD 83(1991)- 39 09 55.33024(N) 077 09 42.89141(W) AD( ) 1 AA9252 ELLIP H (11/30/95) 129.57 (m) GP( ) 4 2 AA9252 AA9252.Superseded values are not recommended for survey control. AA9252.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AA9252.See file dsdata.txt to determine how the superseded data were derived. AA9252 AA9252_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1322437354(NAD 83) AA9252_MARKER: DD = SURVEY DISK AA9252_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AA9252_STAMPING: GAI A 1989 AA9252_MARK LOGO: NOS AA9252_PROJECTION: FLUSH AA9252_MAGNETIC: N = NO MAGNETIC MATERIAL AA9252_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AA9252+STABILITY: SURFACE MOTION AA9252_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AA9252+SATELLITE: SATELLITE OBSERVATIONS - November 01, 2003 AA9252 AA9252 HISTORY - Date Condition Report By AA9252 HISTORY - 1989 MONUMENTED NOS AA9252 HISTORY - 19940817 GOOD NOS AA9252 HISTORY - 19940817 GOOD NOS AA9252 HISTORY - 20031101 GOOD NGS AA9252 AA9252 STATION DESCRIPTION AA9252 AA9252'DESCRIBED BY NATIONAL OCEAN SERVICE 1989 (HSK) AA9252'THE STATION IS LOCATED AT MONTGOMERY COUNTY AIRPARK WNW OF RUNWAY END AA9252'32, AND ENE OF A WINDSOCK. THE STATION IS LOCATED WITHIN THE AA9252'SEGMENTED CIRCLE AROUND THE WINDSOCK, 45 FT (13.7 M) ENE OF THE AA9252'WINDSOCK, 59.4 FT (18.1 M) NW OF THE SOUTHERN L AND 111.8 FT (34.1 M) AA9252'W OF THE SECOND RWY LT NW OF END 32. THE STATION IS A STANDARD NOS AA9252'DISK STAMPED GAI A 1989 AND SET IN THE TOP OF A CONCRETE POST FLUSH AA9252'WITH THE GROUND. AA9252 AA9252 STATION RECOVERY (1994) AA9252 AA9252'RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1994 (RAH) AA9252'THE STATION IS LOCATED AT THE MONTGOMERY COUNTY AIRPARK WEST NORTHWEST AA9252'OF RUNWAY END 32 AND EAST NORTHEAST OF A WINDSOCK. FOR ACCESS TO THE AA9252'AIRPORT AND THE STATION CONTACT MR. DOUGLAS MCNEELY, AIRPORT MANAGER, AA9252'MONTGOMERY COUNTY AIRPARK, 7940 AIRPARK ROAD, GAITHERSBURG, MD 20879, AA9252'PHONE (301) 963-7100. TO REACH THE STATION FROM THE JUNCTION OF STATE AA9252'HIGHWAY 124 (WOODFIELD ROAD) AND AIRPARK ROAD IN NORTH GAITHERSBURG, AA9252'PROCEED SOUTHWESTERLY ALONG AIRPARK ROAD FOR 0.65 MI (1.05 KM) TO THE AA9252'AIRPORT FUEL GATE EAST OF THE AIRPORT TERMINAL, PROCEED THROUGH FUEL AA9252'GATE AND BEAR WEST FOR 0.1 MI (0.2 KM) TO PRIMARY TAXIWAY, TURN LEFT AA9252'AND GO SOUTH ON TAXIWAY FOR 0.6 MI (1.0 KM) TO RUNWAY END 32, GO AA9252'ACROSS THE RUNWAY END AND BEAR RIGHT NORTH FOR 0.5 MI (0.8 KM) TO THE AA9252'WINDSOCK AND THE STATION. THE STATION IS LOCATED WITHIN THE SEGMENTED AA9252'CIRCLE AROUND THE WINDSOCK, 45.0 FT (13.7 M) EAST NORTHEAST OF THE AA9252'WINDSOCK, 59.4 FT (18.1 M) NORTHWEST OF THE SOUTHERN L, AND 111.8 FT AA9252'(34.1 M) WEST OF THE SECOND RUNWAY LIGHT NORTHWEST OF THE END OF AA9252'RUNWAY 32. DESCRIBED BY RAZ. AA9252 AA9252 STATION RECOVERY (1994) AA9252 AA9252'RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1994 (RAH) AA9252'THIS STATION WAS RECOVERED AS DESCRIBED WITH ADDITIONAL INFORMATION. AA9252'THIS STATION DESIGNATED AS A SECONDARY AIRPORT CONTROL STATION. AA9252 AA9252 STATION RECOVERY (2003) AA9252 AA9252'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2003 (GFS) AA9252'RECOVERED AS DESCRIBED 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 AA9253 *********************************************************************** AA9253 SACS - This is a Secondary Airport Control Station. AA9253 DESIGNATION - GAI B AA9253 PID - AA9253 AA9253 STATE/COUNTY- MD/MONTGOMERY AA9253 USGS QUAD - GAITHERSBURG (1979) AA9253 AA9253 *CURRENT SURVEY CONTROL AA9253 ___________________________________________________________________ AA9253* NAD 83(1991)- 39 10 15.09633(N) 077 10 10.57742(W) ADJUSTED AA9253* NAVD 88 - 149.60 (meters) 490.8 (feet) GPS OBS AA9253 ___________________________________________________________________ AA9253 X - 1,099,549.727 (meters) COMP AA9253 Y - -4,827,829.981 (meters) COMP AA9253 Z - 4,007,114.876 (meters) COMP AA9253 LAPLACE CORR- 0.59 (seconds) DEFLEC99 AA9253 ELLIP HEIGHT- 117.89 (meters) (08/19/02) GPS OBS AA9253 GEOID HEIGHT- -31.73 (meters) GEOID99 AA9253 AA9253 HORZ ORDER - FIRST AA9253 ELLP ORDER - FOURTH CLASS II AA9253 AA9253.This mark is at Montgomery Co Airpark (GAI) AA9253 AA9253.The horizontal coordinates were established by GPS observations AA9253.and adjusted by the National Geodetic Survey in April 1998. AA9253 AA9253.The orthometric height was determined by GPS observations and a AA9253.high-resolution geoid model. AA9253 AA9253.GPS derived orthometric heights for airport stations designated as AA9253.PACS or SACS are published to 2 decimal places. This maintains AA9253.centimeter relative accuracy between the PACS and SACS. It does AA9253.not indicate centimeter accuracy relative to other marks which are AA9253.part of the NAVD 88 network. AA9253 AA9253.The X, Y, and Z were computed from the position and the ellipsoidal ht. AA9253 AA9253.The Laplace correction was computed from DEFLEC99 derived deflections. AA9253 AA9253.The ellipsoidal height was determined by GPS observations AA9253.and is referenced to NAD 83. AA9253 AA9253.The geoid height was determined by GEOID99. AA9253 AA9253; North East Units Scale Converg. AA9253;SPC MD - 166,987.399 385,343.693 MT 0.99996307 -0 06 23.2 AA9253;SPC MD - 547,857.82 1,264,248.43 sFT 0.99996307 -0 06 23.2 AA9253;UTM 18 - 4,337,979.413 312,573.634 MT 1.00003256 -1 22 14.9 AA9253 AA9253|---------------------------------------------------------------------| AA9253| PID Reference Object Distance Geod. Az | AA9253| dddmmss.s | AA9253| JV7131 20339 320.300 METERS 13009 | AA9253|---------------------------------------------------------------------| AA9253 AA9253 SUPERSEDED SURVEY CONTROL AA9253 AA9253 ELLIP H (04/02/98) 117.91 (m) GP( ) 4 2 AA9253 NAD 83(1991)- 39 10 15.09629(N) 077 10 10.57739(W) AD( ) 1 AA9253 ELLIP H (11/30/95) 117.91 (m) GP( ) 4 2 AA9253 AA9253.Superseded values are not recommended for survey control. AA9253.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AA9253.See file dsdata.txt to determine how the superseded data were derived. AA9253 AA9253_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1257437979(NAD 83) AA9253_MARKER: DD = SURVEY DISK AA9253_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AA9253_STAMPING: GAI B 1989 AA9253_MARK LOGO: NOS AA9253_PROJECTION: FLUSH AA9253_MAGNETIC: N = NO MAGNETIC MATERIAL AA9253_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AA9253+STABILITY: SURFACE MOTION AA9253_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AA9253+SATELLITE: SATELLITE OBSERVATIONS - November 01, 2003 AA9253 AA9253 HISTORY - Date Condition Report By AA9253 HISTORY - 1989 MONUMENTED NOS AA9253 HISTORY - 19911107 GOOD NGS AA9253 HISTORY - 19940817 GOOD NOS AA9253 HISTORY - 19940817 GOOD NOS AA9253 HISTORY - 20031101 GOOD NGS AA9253 AA9253 STATION DESCRIPTION AA9253 AA9253'DESCRIBED BY NATIONAL GEODETIC SURVEY 1991 AA9253'STATION IS LOCATED NEAR THE NORTH END OF THE FIELD NORTH OF THE SECOND AA9253'TAXIWAY SOUTH OF THE NORTH END OF THE RUNWAY. IT IS 129.5 FT (39.5 M) AA9253'NORTH OF THE NORTH END OF A TAXIWAY HOLD BAR, 56.0 FT (17.1 M) AA9253'NORTHWEST OF THE CORNER OF THE METAL GRATING OF A CONCRETE DRAIN, AND AA9253'6.5 FT (2.0 M) EAST OF THE NORTHEAST CORNER OF THE EAST ONE OF TWO AA9253'VASI. A STANDARD NOS DISK STAMPED GAI B 1989 SET IN THE TOP OF A AA9253'CONCRETE MONUMENT ABOUT FLOUSH WITH THE GROUND. AA9253 AA9253 STATION RECOVERY (1994) AA9253 AA9253'RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1994 (RAH) AA9253'THE STATION IS LOCATED AT THE MONTGOMERY COUNTY AIRPARK NEAR THE NORTH AA9253'END OF THE AIRPORT, NORTH OF THE SECOND TAXIWAY SOUTH OF THE NORTH END AA9253'OF THE RUNWAY. FOR ACCESS TO THE AIRPORT AND THE STATION CONTACT MR. AA9253'DOUGLAS MCNEELY, AIRPORT MANAGER, MONTGOMERY COUNTY AIRPARK, 7940 AA9253'AIRPARK ROAD, GAITHERSBURG, MD 20879, PHONE (301) 963-7100. AA9253' AA9253'TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAY 124 (WOODFIELD AA9253'ROAD) AND AIRPARK ROAD IN NORTH GAITHERSBURG, PROCEED SOUTHWESTERLY AA9253'ALONG AIRPARK ROAD FOR 0.65 MI (1.05 KM) TO THE AIRPORT FUEL GATE EAST AA9253'OF THE AIRPORT TERMINAL, PROCEED THROUGH FUEL GATE AND BEAR WEST FOR AA9253'0.1 MI (0.2 KM) TO PRIMARY TAXIWAY, TURN RIGHT AND GO NORTH ON TAXIWAY AA9253'FOR 0.3 MI (0.5 KM) THE SECOND TAXIWAY ON THE LEFT, CONTINUE NORTH AA9253'ALONG TAXIWAY FOR 0.25 MI (0.40 KM) TO STATION ON LEFT. AA9253' AA9253'THE STATION IS 6.5 FT (2.0 M) EAST OF THE NORTHEAST CORNER OF THE EAST AA9253'ONE OF TWO VASI, 129.5 FT (39.5 M) NORTH OF THE NORTH END OF A TAXIWAY AA9253'HOLD BAR, 56.3 FT (17.2 M) NORTHWEST OF THE CENTER OF THE CENTER OF A AA9253'METAL GRATING OF A STORM DRAIN. AA9253' AA9253'DESCRIBED BY DMC. AA9253 AA9253 STATION RECOVERY (1994) AA9253 AA9253'RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1994 (RAH) AA9253'THIS STATION WAS RECOVERED AS DESCRIBED WITH ADDITIONAL INFORMATION. AA9253'THIS STATION IS DESIGNATED AS A SECONDARY AIRPORT CONTROL STATION. AA9253'DESCRIBED BY DMC. AA9253 AA9253 STATION RECOVERY (2003) AA9253 AA9253'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2003 (GFS) AA9253'RECOVERED AS DESCRIBED 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4423 *********************************************************************** JV4423 DESIGNATION - GAITHERSBURG R STA WHMC S MAST JV4423 PID - JV4423 JV4423 STATE/COUNTY- MD/MONTGOMERY JV4423 USGS QUAD - GAITHERSBURG (1979) JV4423 JV4423 *CURRENT SURVEY CONTROL JV4423 ___________________________________________________________________ JV4423* NAD 83(1991)- 39 11 15.67439(N) 077 12 54.26676(W) ADJUSTED JV4423* NAVD 88 - JV4423 ___________________________________________________________________ JV4423 LAPLACE CORR- 1.41 (seconds) DEFLEC99 JV4423 GEOID HEIGHT- -31.77 (meters) GEOID99 JV4423 JV4423 HORZ ORDER - THIRD JV4423 JV4423.The horizontal coordinates were established by classical geodetic methods JV4423.and adjusted by the National Geodetic Survey in November 1994. JV4423 JV4423 JV4423.The Laplace correction was computed from DEFLEC99 derived deflections. JV4423 JV4423.The geoid height was determined by GEOID99. JV4423 JV4423; North East Units Scale Converg. JV4423;SPC MD - 168,863.747 381,418.901 MT 0.99996463 -0 08 06.0 JV4423;SPC MD - 554,013.81 1,251,371.84 sFT 0.99996463 -0 08 06.0 JV4423;UTM 18 - 4,339,942.082 308,690.909 MT 1.00005066 -1 24 00.2 JV4423 JV4423 SUPERSEDED SURVEY CONTROL JV4423 JV4423 NAD 83(1991)- 39 11 15.67412(N) 077 12 54.26684(W) AD( ) 4 JV4423 NAD 83(1986)- 39 11 15.67395(N) 077 12 54.27708(W) AD( ) 4 JV4423 NAD 27 - 39 11 15.28901(N) 077 12 55.33525(W) AD( ) 3 JV4423 JV4423.Superseded values are not recommended for survey control. JV4423.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4423.See file dsdata.txt to determine how the superseded data were derived. JV4423 JV4423_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0869139942(NAD 83) JV4423_MARKER: 42 = RADIO/TV MAST JV4423_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4423+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4423 JV4423 HISTORY - Date Condition Report By JV4423 HISTORY - 1969 FIRST OBSERVED CGS JV4423 HISTORY - 19950905 GOOD USPSQD JV4423 HISTORY - 20031102 GOOD USPSQD JV4423 JV4423 STATION DESCRIPTION JV4423 JV4423'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4423'THE STATION IS THE RED LIGHT MOUNTED ON TOP OF THE GAITHERSBURG JV4423'RADIO STATION WHMC SOUTH MAST. IT IS THE SOUTH MAST OF FOUR IN JV4423'LINE OF AN ARRAY OF FIVE MASTS. IT IS 213.5 FEET ABOVE THE JV4423'GROUND. JV4423' JV4423'TO REACH THE STATION FROM THE INTERSECTION OF STATE HIGHWAY 355 JV4423'AND WATKINS MILL ROAD, GO NORTHEASTERLY ON WATKINS MILL ROAD JV4423'FOR 3.5 MILES TO THE STATION ON THE RIGHT. JV4423 JV4423 STATION RECOVERY (1995) JV4423 JV4423'RECOVERY NOTE BY US POWER SQUADRON 1995 JV4423'RECOVERED IN GOOD CONDITION. JV4423 JV4423 STATION RECOVERY (2003) JV4423 JV4423'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4423'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4455 *********************************************************************** JV4455 DESIGNATION - GERMANTOWN AEC TANK JV4455 PID - JV4455 JV4455 STATE/COUNTY- MD/MONTGOMERY JV4455 USGS QUAD - GERMANTOWN (1979) JV4455 JV4455 *CURRENT SURVEY CONTROL JV4455 ___________________________________________________________________ JV4455* NAD 83(1991)- 39 10 42.05404(N) 077 15 22.38207(W) ADJUSTED JV4455* NAVD 88 - JV4455 ___________________________________________________________________ JV4455 LAPLACE CORR- 2.55 (seconds) DEFLEC99 JV4455 GEOID HEIGHT- -31.80 (meters) GEOID99 JV4455 JV4455 HORZ ORDER - THIRD JV4455 JV4455.The horizontal coordinates were established by classical geodetic methods JV4455.and adjusted by the National Geodetic Survey in January 1992. JV4455 JV4455 JV4455.The Laplace correction was computed from DEFLEC99 derived deflections. JV4455 JV4455.The geoid height was determined by GEOID99. JV4455 JV4455; North East Units Scale Converg. JV4455;SPC MD - 167,836.159 377,861.481 MT 0.99996375 -0 09 38.9 JV4455;SPC MD - 550,642.46 1,239,700.54 sFT 0.99996375 -0 09 38.9 JV4455;UTM 18 - 4,338,993.191 305,111.331 MT 1.00006769 -1 25 32.8 JV4455 JV4455 SUPERSEDED SURVEY CONTROL JV4455 JV4455 NAD 83(1986)- 39 10 42.05373(N) 077 15 22.39203(W) AD( ) 4 JV4455 NAD 27 - 39 10 41.67094(N) 077 15 23.44826(W) AD( ) 3 JV4455 JV4455.Superseded values are not recommended for survey control. JV4455.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4455.See file dsdata.txt to determine how the superseded data were derived. JV4455 JV4455_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0511138993(NAD 83) JV4455_MARKER: 53 = ELEVATED TANK JV4455_SETTING: 0 = UNSPECIFIED SETTING JV4455_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4455+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4455 JV4455 HISTORY - Date Condition Report By JV4455 HISTORY - 1957 FIRST OBSERVED CGS JV4455 HISTORY - 1969 GOOD CGS JV4455 HISTORY - 1983 GOOD USPSQD JV4455 HISTORY - 19950428 GOOD USPSQD JV4455 HISTORY - 20031102 GOOD USPSQD JV4455 JV4455 STATION DESCRIPTION JV4455 JV4455'DESCRIBED BY COAST AND GEODETIC SURVEY 1957 (JCE) JV4455'THE STATION IS LOCATED ABOUT 5 MI. NW OF GAITHERSBURG AND ABOUT JV4455'1 MI. NE OF GERMANTOWN. IT IS OF STEEL CONSTRUCTION PAINTED JV4455'SILVER, AND IS 127 FT. HIGH WITH A 42-FT. MAST ON TOP OF THE JV4455'TANK. THE RED LIGHT ON TOP OF THE MAST WAS THE POINT INTERSECTED. JV4455' JV4455'TO REACH THE STATION FROM THE CENTER OF GERMANTOWN, GO N AND NE JV4455'ON STATE HIGHWAY 118 FOR 0.8 MI. TO THE ATOMIC ENERGY COMMISSION JV4455'PLANT ON THE RIGHT, AND THE STATION APPROXIMATELY 100 YD. SW OF JV4455'LARGE BRICK BUILDINGS. JV4455 JV4455 STATION RECOVERY (1969) JV4455 JV4455'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4455'THE STATION IS THE RED LIGHT MOUNTED ON THE TOP CENTER OF THE JV4455'GERMANTOWN ATOMIC ENERGY COMMISSION TANK. IT IS AN ELEVATED JV4455'DOUBLE-ELIPSOIDAL TANK. THE STATION IS ABOUT 154 FEET ABOVE THE JV4455'GROUND. JV4455' JV4455'THE STATION IS LOCATED 0.5 MILE WEST OF THE JUNCTION OF STATE JV4455'HIGHWAY 118 AND INTERSTATE 70. JV4455 JV4455 STATION RECOVERY (1983) JV4455 JV4455'RECOVERY NOTE BY US POWER SQUADRON 1983 (RWS) JV4455'STATION RECOVERED GOOD. JV4455' JV4455'NO APPARENT CHANGES FROM ORIGINAL DESCRIPTION. AEC IS NOW JV4455'DOE (DEPARTMENT OF ENLRGY). JV4455 JV4455 STATION RECOVERY (1995) JV4455 JV4455'RECOVERY NOTE BY US POWER SQUADRON 1995 JV4455'RECOVERED IN GOOD CONDITION. JV4455 JV4455 STATION RECOVERY (2003) JV4455 JV4455'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4455'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4454 *********************************************************************** JV4454 DESIGNATION - GERMANTOWN ATT MICROWAVE JV4454 PID - JV4454 JV4454 STATE/COUNTY- MD/MONTGOMERY JV4454 USGS QUAD - GERMANTOWN (1979) JV4454 JV4454 *CURRENT SURVEY CONTROL JV4454 ___________________________________________________________________ JV4454* NAD 83(1991)- 39 10 36.74615(N) 077 15 26.08935(W) ADJUSTED JV4454* NAVD 88 - JV4454 ___________________________________________________________________ JV4454 LAPLACE CORR- 2.56 (seconds) DEFLEC99 JV4454 GEOID HEIGHT- -31.80 (meters) GEOID99 JV4454 JV4454 HORZ ORDER - THIRD JV4454 JV4454.The horizontal coordinates were established by classical geodetic methods JV4454.and adjusted by the National Geodetic Survey in January 1992. JV4454 JV4454 JV4454.The Laplace correction was computed from DEFLEC99 derived deflections. JV4454 JV4454.The geoid height was determined by GEOID99. JV4454 JV4454; North East Units Scale Converg. JV4454;SPC MD - 167,672.728 377,772.040 MT 0.99996362 -0 09 41.2 JV4454;SPC MD - 550,106.28 1,239,407.10 sFT 0.99996362 -0 09 41.2 JV4454;UTM 18 - 4,338,831.757 305,018.294 MT 1.00006813 -1 25 35.0 JV4454 JV4454 SUPERSEDED SURVEY CONTROL JV4454 JV4454 NAD 83(1986)- 39 10 36.74579(N) 077 15 26.09989(W) AD( ) 4 JV4454 NAD 27 - 39 10 36.35981(N) 077 15 27.15402(W) AD( ) 3 JV4454 JV4454.Superseded values are not recommended for survey control. JV4454.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4454.See file dsdata.txt to determine how the superseded data were derived. JV4454 JV4454_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0501838832(NAD 83) JV4454_MARKER: 45 = MICROWAVE TOWER JV4454_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4454+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4454 JV4454 HISTORY - Date Condition Report By JV4454 HISTORY - 1958 FIRST OBSERVED CGS JV4454 HISTORY - 1969 GOOD CGS JV4454 HISTORY - 19950428 GOOD USPSQD JV4454 HISTORY - 20031102 GOOD USPSQD JV4454 JV4454 STATION DESCRIPTION JV4454 JV4454'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4454'THE STATION IS THE RED LIGHT MOUNTED ON THE TOP OF THE GERMANTOWN JV4454'ATOMIC ENERGY COMMISSION MICROWAVE. IT IS ABOUT 250 FEET ABOVE JV4454'THE GROUND. JV4454' JV4454'THE STATION IS LOCATED 1 MILE WEST OF THE JUNCTION OF INTERSTATE JV4454'70 AND STATE HIGHWAY 118. JV4454' JV4454'NOTE--LISTED AS GERMANTOWN ATT RELAY TOWER IN 1958. JV4454 JV4454 STATION RECOVERY (1995) JV4454 JV4454'RECOVERY NOTE BY US POWER SQUADRON 1995 JV4454'RECOVERED IN GOOD CONDITION. JV4454 JV4454 STATION RECOVERY (2003) JV4454 JV4454'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4454'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4426 *********************************************************************** JV4426 DESIGNATION - LAYTONSVILLE ST PAUL METH CH JV4426 PID - JV4426 JV4426 STATE/COUNTY- MD/MONTGOMERY JV4426 USGS QUAD - GAITHERSBURG (1979) JV4426 JV4426 *CURRENT SURVEY CONTROL JV4426 ___________________________________________________________________ JV4426* NAD 83(1991)- 39 12 47.02433(N) 077 08 34.75369(W) ADJUSTED JV4426* NAVD 88 - JV4426 ___________________________________________________________________ JV4426 LAPLACE CORR- 0.18 (seconds) DEFLEC99 JV4426 GEOID HEIGHT- -31.75 (meters) GEOID99 JV4426 JV4426 HORZ ORDER - THIRD JV4426 JV4426.The horizontal coordinates were established by classical geodetic methods JV4426.and adjusted by the National Geodetic Survey in November 1994. JV4426 JV4426 JV4426.The Laplace correction was computed from DEFLEC99 derived deflections. JV4426 JV4426.The geoid height was determined by GEOID99. JV4426 JV4426; North East Units Scale Converg. JV4426;SPC MD - 171,668.546 387,651.184 MT 0.99996713 -0 05 23.1 JV4426;SPC MD - 563,215.89 1,271,818.93 sFT 0.99996713 -0 05 23.1 JV4426;UTM 18 - 4,342,608.769 314,984.047 MT 1.00002150 -1 21 18.7 JV4426 JV4426 SUPERSEDED SURVEY CONTROL JV4426 JV4426 NAD 83(1991)- 39 12 47.02402(N) 077 08 34.75370(W) AD( ) 4 JV4426 NAD 83(1986)- 39 12 47.02395(N) 077 08 34.76372(W) AD( ) 4 JV4426 NAD 27 - 39 12 46.64097(N) 077 08 35.83096(W) AD( ) 3 JV4426 JV4426.Superseded values are not recommended for survey control. JV4426.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4426.See file dsdata.txt to determine how the superseded data were derived. JV4426 JV4426_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1498442609(NAD 83) JV4426_MARKER: 90 = CHURCH SPIRE JV4426_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4426+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4426 JV4426 HISTORY - Date Condition Report By JV4426 HISTORY - 1969 FIRST OBSERVED CGS JV4426 HISTORY - 20031102 GOOD USPSQD JV4426 JV4426 STATION DESCRIPTION JV4426 JV4426'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4426'THE STATION IS THE LAYTONSVILLE SAINT PAUL METHODIST CHURCH JV4426'SPIRE. THE POINT OBSERVED WAS THE BASE OF THE CROSS ON THE TOP OF JV4426'THE 100 FOOT HIGH SPIRE. JV4426' JV4426'IT IS LOCATED ON THE NORTH EDGE OF THE TOWN OF LAYTONSVILLE, JV4426'125 FEET WEST OF MARYLAND STATE HIGHWAY 108 AND 0.1 MILE NORTH OF JV4426'TRIANGULATION STATION LAYTON 1943. JV4426 JV4426 STATION RECOVERY (2003) JV4426 JV4426'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4426'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV4408 *********************************************************************** JV4408 DESIGNATION - WOODFIELD WESLEY GROVE METH CH JV4408 PID - JV4408 JV4408 STATE/COUNTY- MD/MONTGOMERY JV4408 USGS QUAD - GAITHERSBURG (1979) JV4408 JV4408 *CURRENT SURVEY CONTROL JV4408 ___________________________________________________________________ JV4408* NAD 83(1991)- 39 14 40.42934(N) 077 11 15.36645(W) ADJUSTED JV4408* NAVD 88 - JV4408 ___________________________________________________________________ JV4408 LAPLACE CORR- 1.30 (seconds) DEFLEC99 JV4408 GEOID HEIGHT- -31.79 (meters) GEOID99 JV4408 JV4408 HORZ ORDER - THIRD JV4408 JV4408.The horizontal coordinates were established by classical geodetic methods JV4408.and adjusted by the National Geodetic Survey in November 1994. JV4408 JV4408 JV4408.The Laplace correction was computed from DEFLEC99 derived deflections. JV4408 JV4408.The geoid height was determined by GEOID99. JV4408 JV4408; North East Units Scale Converg. JV4408;SPC MD - 175,172.686 383,805.314 MT 0.99997051 -0 07 03.9 JV4408;SPC MD - 574,712.39 1,259,201.27 sFT 0.99997051 -0 07 03.9 JV4408;UTM 18 - 4,346,197.246 311,216.307 MT 1.00003884 -1 23 03.7 JV4408 JV4408 SUPERSEDED SURVEY CONTROL JV4408 JV4408 NAD 83(1991)- 39 14 40.42908(N) 077 11 15.36652(W) AD( ) 4 JV4408 NAD 83(1986)- 39 14 40.42918(N) 077 11 15.37699(W) AD( ) 4 JV4408 NAD 27 - 39 14 40.04905(N) 077 11 16.44039(W) AD( ) 3 JV4408 JV4408.Superseded values are not recommended for survey control. JV4408.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4408.See file dsdata.txt to determine how the superseded data were derived. JV4408 JV4408_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1121646197(NAD 83) JV4408_MARKER: 90 = CHURCH SPIRE JV4408_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV4408+SATELLITE: SATELLITE OBSERVATIONS - November 02, 2003 JV4408 JV4408 HISTORY - Date Condition Report By JV4408 HISTORY - 1969 FIRST OBSERVED CGS JV4408 HISTORY - 20031102 GOOD USPSQD JV4408 JV4408 STATION DESCRIPTION JV4408 JV4408'DESCRIBED BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4408'THE STATION IS THE CENTER OF THE TOP OF THE WOODFIELD WESLEY JV4408'GROVE METHODIST CHURCH SPIRE. IT IS ABOUT 53 FEET ABOVE THE JV4408'GROUND. THERE IS A WEATHER VANE AT THE TOP OF THE SPIRE. JV4408' JV4408'THE STATION IS LOCATED 0.2 MILE SOUTH OF THE INTERSECTION OF JV4408'PLEASANT DRIVE AND STATE HIGHWAY 124 IN WOODFIELD. JV4408 JV4408 STATION RECOVERY (2003) JV4408 JV4408'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV4408'RECOVERED IN GOOD CONDITION.