1 National Geodetic Survey, Retrieval Date = NOVEMBER 1, 2005 AE9871 *********************************************************************** AE9871 HT_MOD - This is a Height Modernization Survey Station. AE9871 DESIGNATION - TUBE AE9871 PID - AE9871 AE9871 STATE/COUNTY- CA/ALAMEDA AE9871 USGS QUAD - CLIFTON COURT FOREBAY (1978) AE9871 AE9871 *CURRENT SURVEY CONTROL AE9871 ___________________________________________________________________ AE9871* NAD 83(1998)- 37 47 22.85520(N) 121 35 17.44855(W) ADJUSTED AE9871* NAVD 88 - 29.79 (meters) 97.7 (feet) GPS OBS AE9871 ___________________________________________________________________ AE9871 EPOCH DATE - 2002.86 AE9871 X - -2,643,547.322 (meters) COMP AE9871 Y - -4,299,011.775 (meters) COMP AE9871 Z - 3,887,020.765 (meters) COMP AE9871 LAPLACE CORR- -2.65 (seconds) DEFLEC99 AE9871 ELLIP HEIGHT- -2.34 (meters) (10/28/05) GPS OBS AE9871 GEOID HEIGHT- -32.12 (meters) GEOID03 AE9871 AE9871 HORZ ORDER - B AE9871 ELLP ORDER - FOURTH CLASS I AE9871 AE9871.The horizontal coordinates were established by GPS observations AE9871.and adjusted by the National Geodetic Survey in October 2005. AE9871.This is a SPECIAL STATUS position. See SPECIAL STATUS under the AE9871.DATUM ITEM on the data sheet items page. AE9871.The horizontal coordinates are valid at the epoch date displayed above. AE9871.The epoch date for horizontal control is a decimal equivalence AE9871.of Year/Month/Day. AE9871 AE9871.The orthometric height was determined by GPS observations and a AE9871.high-resolution geoid model using precise GPS observation and AE9871.processing techniques. AE9871 AE9871.The X, Y, and Z were computed from the position and the ellipsoidal ht. AE9871 AE9871.The Laplace correction was computed from DEFLEC99 derived deflections. AE9871 AE9871.The ellipsoidal height was determined by GPS observations AE9871.and is referenced to NAD 83. AE9871 AE9871.The geoid height was determined by GEOID03. AE9871 AE9871; North East Units Scale Factor Converg. AE9871;SPC CA 3 - 643,687.403 1,904,159.068 MT 0.99992941 -0 39 58.4 AE9871;SPC CA 3 - 2,111,831.09 6,247,228.54 sFT 0.99992941 -0 39 58.4 AE9871;UTM 10 - 4,183,418.812 624,310.342 MT 0.99979033 +0 51 54.8 AE9871 AE9871! - Elev Factor x Scale Factor = Combined Factor AE9871!SPC CA 3 - 1.00000037 x 0.99992941 = 0.99992978 AE9871!UTM 10 - 1.00000037 x 0.99979033 = 0.99979070 AE9871 AE9871 SUPERSEDED SURVEY CONTROL AE9871 AE9871 NAD 83(1992)- 37 47 22.85373(N) 121 35 17.44609(W) AD(1997.30) 1 AE9871 ELLIP H (07/10/98) -2.34 (m) GP(1997.30) 4 1 AE9871 NAD 83(1992)- 37 47 22.85339(N) 121 35 17.44644(W) AD(1997.30) 1 AE9871 ELLIP H (05/14/98) -2.25 (m) GP(1997.30) 3 1 AE9871 AE9871.Superseded values are not recommended for survey control. AE9871.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AE9871.See file dsdata.txt to determine how the superseded data were derived. AE9871 AE9871_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SFG2431083419(NAD 83) AE9871_MARKER: DD = SURVEY DISK AE9871_SETTING: 30 = SET IN A LIGHT STRUCTURE AE9871_SP_SET: AQUEDUCT ACCESS STRUCTURE AE9871_STAMPING: TUBE 1997 AE9871_MARK LOGO: BOR AE9871_MAGNETIC: N = NO MAGNETIC MATERIAL AE9871_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AE9871+STABILITY: SURFACE MOTION AE9871_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AE9871+SATELLITE: SATELLITE OBSERVATIONS - December 02, 2002 AE9871 AE9871 HISTORY - Date Condition Report By AE9871 HISTORY - 1997 MONUMENTED BOR AE9871 HISTORY - 20021105 GOOD CADWR AE9871 HISTORY - 20021202 GOOD CADWR AE9871 AE9871 STATION DESCRIPTION AE9871 AE9871'DESCRIBED BY US BUREAU OF RECLAMATION 1997 (DWS) AE9871'THE STATION IS ABOUT 12 MI (19.3 KM) WEST-NORTHWEST OF TRACY AND 11.5 AE9871'MI (18.5 KM) SOUTHEAST OF BRENTWOOD, ON THE MAIN DISCHARGE PIPELINE AE9871'BETWEEN THE TRACY PUMPING PLANT AND THE DELTA-MENDOTA CANAL, 2 MI (3.2 AE9871'KM) SOUTH OF THE CLIFTON COURT FOREBAY. CONTACT THE US BUREAU OF AE9871'RECLAMATION, TRACY PUMPING PLANT, AT (209) 836-6278 ABOUT ACCESS TO AE9871'THE PIPELINE AND STATION. TO REACH THE STATION FROM THE INTERSECTION AE9871'OF INTERSTATE HIGHWAY 205 AND TRACY BOULEVARD IN TRACY, TRAVEL SOUTH AE9871'ON TRACY BLVD FOR 0.6 MI (1.0 KM) TO GRANT LINE ROAD. TURN RIGHT AND AE9871'GO WEST ON GRANT LINE ROAD FOR ABOUT 2.7 MI (4.3 KM) TO THE AE9871'INTERSECTION OF BYRON ROAD AT THE CALIFORNIA NORTHERN RAILROAD TRACKS. AE9871'TURN RIGHT AND GO NORTHWEST FOR 4.57 MI (7.35 KM) TO THE INTERSECTION AE9871'OF KELSO ROAD ON THE LEFT (SOUTHWEST) . TURN LEFT AND GO WEST ON AE9871'KELSO ROAD FOR 1.47 MI (2.37 KM) TO THE INTERSECTION OF MOUNTAIN HOUSE AE9871'ROAD. CONTINUE WEST ON KELSO ROAD, PAST THE TRACY PUMPING PLANT AND AE9871'SWITCHYARD ON THE RIGHT, FOR 0.47 MI (0.76 KM) TO A DIRT ROAD AND AE9871'LOCKED GATE ON THE LEFT. TURN LEFT AND GO SOUTH ON THE DIRT ROAD FOR AE9871'0.37 MI (0.60 KM) TO THE STATION ON THE RIGHT. THE STATION IS A AE9871'2-INCH DIAMETER ALUMINUM ALLOY DOMED CAP WITH MAGNET, SET FLUSH IN THE AE9871'SOUTHWEST CORNER OF THE EASTERN-MOST OF THREE 6.3-FT SQUARE CONCRETE AE9871'UNDERGROUND PIPELINE ACCESS VAULTS ON THE DISCHARGE LINE FROM THE AE9871'PUMPING PLANT, 33 FT (10.1 M) WEST OF CENTERLINE AND ABOUT 7.0 FT (2.1 AE9871'M) HIGHER THAN CENTERLINE OF THE OPERATIONS AND MAINTENANCE ACCESS AE9871'ROAD, 7.0 FT (2.1 M) EAST OF A TRACK ROAD RUNNING ON TOP OF THE AE9871'PIPELINE, AND 1.15 FT (0.35 M) ABOVE GROUND LEVEL. THE STATION IS 1.0 AE9871'FT (0.3 M) WEST OF A CARSONITE WITNESS POST. THE STATION WAS OCCUPIED AE9871'AS PART OF THE SAN JOAQUIN-SACRAMENTO RIVER DELTA GPS/VERTICAL AE9871'PROJECT. (RWK) AE9871 AE9871 STATION RECOVERY (2002) AE9871 AE9871'RECOVERY NOTE BY CA DEPT OF WATER RES 2002 (WLB) AE9871'RECOVERED AS DESCRIBED. THE STATION WAS OBSERVED AS PART OF THE DWR AE9871'DELTA 2002 SUBSIDENCE NETWORK HEIGHT MODERNIZATION SURVEY. AE9871 AE9871 STATION RECOVERY (2002) AE9871 AE9871'RECOVERY NOTE BY CA DEPT OF WATER RES 2002 (WLB) AE9871'RECOVERED AS DESCRIBED. THE STATION WAS OBSERVED AS PART OF THE DWR AE9871'DELTA 2002 SUBSIDENCE NETWORK HEIGHT MODERNIZATION SURVEY.