1 National Geodetic Survey, Retrieval Date = NOVEMBER 1, 2005 DW9015 *********************************************************************** DW9015 DESIGNATION - CO C 58 RESET DW9015 PID - DW9015 DW9015 STATE/COUNTY- CA/IMPERIAL DW9015 USGS QUAD - WISTER (1992) DW9015 DW9015 *CURRENT SURVEY CONTROL DW9015 ___________________________________________________________________ DW9015* NAD 83(1986)- 33 15 32. (N) 115 33 02. (W) SCALED DW9015* NAVD 88 - -54.309 (meters) -178.18 (feet) ADJUSTED DW9015 ___________________________________________________________________ DW9015 GEOID HEIGHT- -33.78 (meters) GEOID03 DW9015 DYNAMIC HT - -54.250 (meters) -177.99 (feet) COMP DW9015 MODELED GRAV- 979,560.5 (mgal) NAVD 88 DW9015 DW9015 VERT ORDER - FIRST CLASS II DW9015 DW9015.The horizontal coordinates were scaled from a topographic map and have DW9015.an estimated accuracy of +/- 6 seconds. DW9015 DW9015.The orthometric height was determined by differential leveling DW9015.and adjusted by the National Geodetic Survey in March 1994. DW9015 DW9015.The geoid height was determined by GEOID03. DW9015 DW9015.The dynamic height is computed by dividing the NAVD 88 DW9015.geopotential number by the normal gravity value computed on the DW9015.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 DW9015.degrees latitude (g = 980.6199 gals.). DW9015 DW9015.The modeled gravity was interpolated from observed gravity values. DW9015 DW9015; North East Units Estimated Accuracy DW9015;SPC CA 6 - 621,350. 2,065,170. MT (+/- 180 meters Scaled) DW9015 DW9015 SUPERSEDED SURVEY CONTROL DW9015 DW9015.No superseded survey control is available for this station. DW9015 DW9015_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SPS350809(NAD 83) DW9015_MARKER: DB = BENCH MARK DISK DW9015_SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE DW9015_SP_SET: HEADWALL DW9015_STAMPING: CO C 58 RESET 1985 DW9015_MARK LOGO: CA-025 DW9015_MAGNETIC: N = NO MAGNETIC MATERIAL DW9015_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO DW9015+STABILITY: SURFACE MOTION DW9015_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR DW9015+SATELLITE: SATELLITE OBSERVATIONS - August 27, 2003 DW9015 DW9015 HISTORY - Date Condition Report By DW9015 HISTORY - 1985 MONUMENTED CA-025 DW9015 HISTORY - 1986 GOOD CA-025 DW9015 HISTORY - 19891012 GOOD CA-025 DW9015 HISTORY - 19920918 GOOD CA-025 DW9015 HISTORY - 20030827 GOOD JOHFRA DW9015 HISTORY - 20030827 GOOD JOHFRA DW9015 DW9015 STATION DESCRIPTION DW9015 DW9015'DESCRIBED BY IMPERIAL COUNTY CALIFORNIA 1986 DW9015'2.5 MI NW FROM NILAND. DW9015'2.5 MILES NORTHWEST ALONG HIGHWAY 111 FROM MAIN STREET IN NILAND, DW9015'5.5 POLES NORTHWEST FROM MILE POLE 665. 26 FEET NORTHWEST OF THE DW9015'CENTERLINE OF THE HIGHWAY AND DIRECTLY ACROSS FROM RAILROAD BRIDGE DW9015'664.79 SET ON TOP AND ON NORTHWEST CORNER OF INLET CULVERT HEADWALL DW9015'UNDER THE HIGHWAY 111. DW9015 DW9015 STATION RECOVERY (1989) DW9015 DW9015'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1989 DW9015'RECOVERED IN GOOD CONDITION. DW9015 DW9015 STATION RECOVERY (1992) DW9015 DW9015'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1992 DW9015'ADDITION - THE MARK IS SET ON TOP OF BRIDGE NUMBER 58-147 OVER DW9015'BRAWLEY WASH. DW9015 DW9015 STATION RECOVERY (2003) DW9015 DW9015'RECOVERY NOTE BY JOHNSON-FRANK 2003 (JVF) DW9015'RECOVERED PER 1986 RECOVERY NOTE, EXCEPT THAT THE MARK IS ON THE DW9015'NORTHEAST CORNER OF THE INLET CULVERT HEADWALL INSTEAD OF THE DW9015'NORTHWEST AS DESCRIBED. HANDHELD GPS POSITION = N33-15-38.8 DW9015'W115-33-11.4. DW9015 DW9015 STATION RECOVERY (2003) DW9015 DW9015'RECOVERY NOTE BY JOHNSON-FRANK 2003 DW9015'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 1, 2005 DW0116 *********************************************************************** DW0116 DESIGNATION - CO C 59 DW0116 PID - DW0116 DW0116 STATE/COUNTY- CA/IMPERIAL DW0116 USGS QUAD - WISTER (1992) DW0116 DW0116 *CURRENT SURVEY CONTROL DW0116 ___________________________________________________________________ DW0116* NAD 83(1986)- 33 15 18. (N) 115 32 33. (W) SCALED DW0116* NAVD 88 - -51.524 (meters) -169.04 (feet) ADJUSTED DW0116 ___________________________________________________________________ DW0116 GEOID HEIGHT- -33.79 (meters) GEOID03 DW0116 DYNAMIC HT - -51.468 (meters) -168.86 (feet) COMP DW0116 MODELED GRAV- 979,559.1 (mgal) NAVD 88 DW0116 DW0116 VERT ORDER - FIRST CLASS II DW0116 DW0116.The horizontal coordinates were scaled from a topographic map and have DW0116.an estimated accuracy of +/- 6 seconds. DW0116 DW0116.The orthometric height was determined by differential leveling DW0116.and adjusted by the National Geodetic Survey in March 1994. DW0116 DW0116.The geoid height was determined by GEOID03. DW0116 DW0116.The dynamic height is computed by dividing the NAVD 88 DW0116.geopotential number by the normal gravity value computed on the DW0116.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 DW0116.degrees latitude (g = 980.6199 gals.). DW0116 DW0116.The modeled gravity was interpolated from observed gravity values. DW0116 DW0116; North East Units Estimated Accuracy DW0116;SPC CA 6 - 620,920. 2,065,920. MT (+/- 180 meters Scaled) DW0116 DW0116 SUPERSEDED SURVEY CONTROL DW0116 DW0116 NAVD 88 (06/15/91) -51.526 (m) -169.05 (f) UNKNOWN 1 2 DW0116 NGVD 29 (??/??/92) -52.243 (m) -171.40 (f) ADJ UNCH 1 2 DW0116 DW0116.Superseded values are not recommended for survey control. DW0116.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. DW0116.See file dsdata.txt to determine how the superseded data were derived. DW0116 DW0116_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SPS357805(NAD 83) DW0116_MARKER: DB = BENCH MARK DISK DW0116_SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE DW0116_SP_SET: HEADWALL DW0116_STAMPING: CO C 59 1971 DW0116_MARK LOGO: CA-025 DW0116_MAGNETIC: N = NO MAGNETIC MATERIAL DW0116_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO DW0116+STABILITY: SURFACE MOTION DW0116_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR DW0116+SATELLITE: SATELLITE OBSERVATIONS - August 27, 2003 DW0116 DW0116 HISTORY - Date Condition Report By DW0116 HISTORY - 1971 MONUMENTED CA-025 DW0116 HISTORY - 1972 GOOD NGS DW0116 HISTORY - 1976 GOOD NGS DW0116 HISTORY - 1978 GOOD NGS DW0116 HISTORY - 1981 GOOD CA-025 DW0116 HISTORY - 1984 GOOD CA-025 DW0116 HISTORY - 1984 GOOD CA-025 DW0116 HISTORY - 1986 GOOD CA-025 DW0116 HISTORY - 19891012 GOOD CA-025 DW0116 HISTORY - 19920918 GOOD CA-025 DW0116 HISTORY - 20030827 GOOD JOHFRA DW0116 HISTORY - 20030827 GOOD JOHFRA DW0116 DW0116 STATION DESCRIPTION DW0116 DW0116'DESCRIBED BY NATIONAL GEODETIC SURVEY 1972 DW0116'1.9 MI NW FROM NILAND. DW0116'ABOUT 1.90 MILES NORTHWEST ON STATE HIGHWAY 111 FROM MAIN STREET DW0116'IN NILAND, 38 FEET SOUTH OF THE CENTERLINE OF STATE HIGHWAY 111, DW0116'150 FEET WEST OF THE CENTERLINE OF A PAVED COUNTY (ENGLISH) DW0116'ROAD, SET ON TOP AND AT THE CENTERLINE OF SOUTH CONCRETE HEADWALL DW0116'OF SIPHON UNDER STATE HIGHWAY 111. SECTION 31, T10S, R14E. DW0116 DW0116 STATION RECOVERY (1976) DW0116 DW0116'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 DW0116'2.4 MILES NORTHWEST ALONG THE SOUTHERN PACIFIC COMPANY RAILROAD DW0116'FROM THE CROSSING OF MAIN STREET AT NILAND, 0.35 MILE SOUTHEAST DW0116'OF MILE POLE 665, 254 FT. SOUTHWEST OF AND ACROSS HIGHWAY FROM DW0116'SOUTHWEST RAIL, 34.5 FT. SOUTHWEST OF THE CENTER LINE OF STATE DW0116'HIGHWAY 111, 280 FT. NORTHWEST OF THE CENTER LINE OF A DIRT DW0116'ROAD LEADING SOUTH(ENGLISH), DISK SET IN TOP AND 3 FT. DW0116'SOUTHEAST OF THE NORTHWEST END OF THE SOUTHWEST HEADWALL OF A DW0116'SIPHON UNDER HIGHWAY. DW0116 DW0116 STATION RECOVERY (1978) DW0116 DW0116'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978 DW0116'RECOVERED IN GOOD CONDITION. DW0116 DW0116 STATION RECOVERY (1981) DW0116 DW0116'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1981 DW0116'RECOVERED IN GOOD CONDITION. DW0116 DW0116 STATION RECOVERY (1984) DW0116 DW0116'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1984 DW0116'RECOVERED IN GOOD CONDITION. DW0116 DW0116 STATION RECOVERY (1984) DW0116 DW0116'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1984 DW0116'RECOVERED IN GOOD CONDITION. DW0116 DW0116 STATION RECOVERY (1986) DW0116 DW0116'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1986 DW0116'RECOVERED IN GOOD CONDITION. DW0116 DW0116 STATION RECOVERY (1989) DW0116 DW0116'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1989 DW0116'RECOVERED IN GOOD CONDITION. DW0116 DW0116 STATION RECOVERY (1992) DW0116 DW0116'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1992 DW0116'RECOVERED IN GOOD CONDITION. DW0116 DW0116 STATION RECOVERY (2003) DW0116 DW0116'RECOVERY NOTE BY JOHNSON-FRANK 2003 (JVF) DW0116'HANDHELD GPS POSITION = N33-15-26.0 W115-32-44.5. DW0116 DW0116 STATION RECOVERY (2003) DW0116 DW0116'RECOVERY NOTE BY JOHNSON-FRANK 2003 DW0116'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 1, 2005 DB0374 *********************************************************************** DB0374 DESIGNATION - G 1224 DB0374 PID - DB0374 DB0374 STATE/COUNTY- CA/IMPERIAL DB0374 USGS QUAD - MIDWAY WELL (1979) DB0374 DB0374 *CURRENT SURVEY CONTROL DB0374 ___________________________________________________________________ DB0374* NAD 83(1986)- 32 42 32. (N) 115 02 08. (W) SCALED DB0374* NAVD 88 - 45.189 (meters) 148.26 (feet) ADJUSTED DB0374 ___________________________________________________________________ DB0374 GEOID HEIGHT- -34.49 (meters) GEOID03 DB0374 DYNAMIC HT - 45.137 (meters) 148.09 (feet) COMP DB0374 MODELED GRAV- 979,493.0 (mgal) NAVD 88 DB0374 DB0374 VERT ORDER - FIRST CLASS I DB0374 DB0374.The horizontal coordinates were scaled from a topographic map and have DB0374.an estimated accuracy of +/- 6 seconds. DB0374 DB0374.The orthometric height was determined by differential leveling DB0374.and adjusted by the National Geodetic Survey in March 1994. DB0374 DB0374.The geoid height was determined by GEOID03. DB0374 DB0374.The dynamic height is computed by dividing the NAVD 88 DB0374.geopotential number by the normal gravity value computed on the DB0374.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 DB0374.degrees latitude (g = 980.6199 gals.). DB0374 DB0374.The modeled gravity was interpolated from observed gravity values. DB0374 DB0374; North East Units Estimated Accuracy DB0374;SPC CA 6 - 560,800. 2,113,860. MT (+/- 180 meters Scaled) DB0374 DB0374 SUPERSEDED SURVEY CONTROL DB0374 DB0374 NAVD 88 (06/15/91) 45.192 (m) 148.27 (f) UNKNOWN 1 1 DB0374 NGVD 29 (??/??/??) 44.476 (m) 145.92 (f) ADJUSTED 1 1 DB0374 DB0374.Superseded values are not recommended for survey control. DB0374.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. DB0374.See file dsdata.txt to determine how the superseded data were derived. DB0374 DB0374_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SPS841207(NAD 83) DB0374_MARKER: DB = BENCH MARK DISK DB0374_SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE DB0374_SP_SET: HEADWALL DB0374_STAMPING: G 1224 1971 DB0374_MARK LOGO: NGS DB0374_MAGNETIC: N = NO MAGNETIC MATERIAL DB0374_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO DB0374+STABILITY: SURFACE MOTION DB0374_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR DB0374+SATELLITE: SATELLITE OBSERVATIONS - August 27, 2003 DB0374 DB0374 HISTORY - Date Condition Report By DB0374 HISTORY - 1971 MONUMENTED NGS DB0374 HISTORY - UNK GOOD NGS DB0374 HISTORY - 1972 GOOD NGS DB0374 HISTORY - 1977 GOOD NGS DB0374 HISTORY - 1981 GOOD NGS DB0374 HISTORY - 1981 GOOD NGS DB0374 HISTORY - 1984 GOOD CA-025 DB0374 HISTORY - 19870910 GOOD CA-025 DB0374 HISTORY - 19901026 GOOD CA-025 DB0374 HISTORY - 19931025 GOOD CA-025 DB0374 HISTORY - 20030827 GOOD JOHFRA DB0374 HISTORY - 20030827 GOOD JOHFRA DB0374 DB0374 STATION DESCRIPTION DB0374 DB0374'DESCRIBED BY NATIONAL GEODETIC SURVEY UNK DB0374'RECOVERED IN GOOD CONDITION. DB0374 DB0374 STATION RECOVERY (1972) DB0374 DB0374'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1972 DB0374'22.2 MI SE FROM HOLTVILLE. DB0374'22.2 MILES SOUTHEAST ALONG COUNTY ROAD S 80 FROM THE JUNCTION DB0374'OF HOLT AVENUE IN HOLTVILLE, AT THE JUNCTION OF A SHORT ASPHALT DB0374'ROAD NORTH AND A ROAD SOUTH TO AN OVERPASS OVER INTERSTATE DB0374'HIGHWAY 8, 49 1/2 FEET NORTH OF THE CENTER LINE OF THE ROAD, 26 DB0374'FEET EAST OF THE CENTER LINE OF THE ROAD NORTH, IN THE TOP AND DB0374'1.9 FEET NORTH OF THE SOUTH END OF THE EAST HEAD WALL OF A 24-INCH DB0374'PIPE CULVERT UNDER THE ROAD NORTH, ABOUT LEVEL WITH THE ROAD. DB0374'SECTION 32, T16S, R19E DB0374 DB0374 STATION RECOVERY (1977) DB0374 DB0374'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 DB0374'RECOVERED IN GOOD CONDITION. DB0374 DB0374 STATION RECOVERY (1981) DB0374 DB0374'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1981 DB0374'RECOVERED IN GOOD CONDITION. DB0374 DB0374 STATION RECOVERY (1981) DB0374 DB0374'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1981 DB0374'RECOVERED IN GOOD CONDITION. DB0374 DB0374 STATION RECOVERY (1984) DB0374 DB0374'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1984 DB0374'RECOVERED IN GOOD CONDITION. DB0374 DB0374 STATION RECOVERY (1987) DB0374 DB0374'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1987 DB0374'RECOVERED IN GOOD CONDITION. DB0374 DB0374 STATION RECOVERY (1990) DB0374 DB0374'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1990 DB0374'22.2 MILES (35.7 KM) SOUTHEAST ALONG COUNTY ROAD S 80 FROM THE DB0374'JUNCTION OF HOLT AVENUE IN HOLTVILLE, AT THE JUNCTION OF A SHORT DB0374'ASPHALT ROAD NORTH AND A ROAD SOUTH TO AN OVERPASS OVER INTERSTATE DB0374'HIGHWAY 8, 49 1/2 FEET NORTH OF THE CENTER LINE OF THE ROAD, 26 FEET DB0374'EAST OF THE CENTER LINE OF THE ROAD NORTH, IN THE TOP AND 1.9 FEET DB0374'NORTH OF THE SOUTH END OF THE EAST HEAD WALL OF A 24-INCH PIPE DB0374'CULVERT UNDER THE ROAD NORTH, ABOUT LEVEL WITH THE ROAD. IN T16S DB0374'R19E SEC 32. DB0374 DB0374 STATION RECOVERY (1993) DB0374 DB0374'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1993 (CHL) DB0374'22.2 MI (35.7 KM) SOUTHEAST ALONG HIGHWAY 115, FORMERLY CALLED COUNTY DB0374'ROAD S 80, FROM THE JUNCTION OF HOLT AVENUE IN HOLTVILLE, AT THE DB0374'JUNCTION OF A SHORT ASPHALT ROAD NORTH AND A ROAD SOUTH TO AN OVERPASS DB0374'OVER INTERSTATE HIGHWAY 8, 49.5 FT (15.1 M) NORTH OF THE CENTER LINE DB0374'OF THE ROAD, 26 FT (7.9 M) EAST OF THE CENTER LINE OF THE ROAD NORTH, DB0374'IN THE TOP AND 1.9 FT (0.6 M) NORTH OF THE SOUTH END OF THE EAST DB0374'HEADWALL OF A 24-INCH PIPE CULVERT UNDER THE ROAD NORTH, ABOUT LEVEL DB0374'WITH THE ROAD. IN T16S R19E SEC 32. DB0374 DB0374 STATION RECOVERY (2003) DB0374 DB0374'RECOVERY NOTE BY JOHNSON-FRANK 2003 (JVF) DB0374'HANDHELD GPS POSITION = N32-42-34.5 W115-02-13.0. DB0374 DB0374 STATION RECOVERY (2003) DB0374 DB0374'RECOVERY NOTE BY JOHNSON-FRANK 2003 DB0374'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 1, 2005 DB0375 *********************************************************************** DB0375 DESIGNATION - X 613 DB0375 PID - DB0375 DB0375 STATE/COUNTY- CA/IMPERIAL DB0375 USGS QUAD - MIDWAY WELL (1979) DB0375 DB0375 *CURRENT SURVEY CONTROL DB0375 ___________________________________________________________________ DB0375* NAD 83(1986)- 32 42 32. (N) 115 01 46. (W) SCALED DB0375* NAVD 88 - 43.168 (meters) 141.63 (feet) ADJUSTED DB0375 ___________________________________________________________________ DB0375 GEOID HEIGHT- -34.49 (meters) GEOID03 DB0375 DYNAMIC HT - 43.118 (meters) 141.46 (feet) COMP DB0375 MODELED GRAV- 979,492.6 (mgal) NAVD 88 DB0375 DB0375 VERT ORDER - FIRST CLASS I DB0375 DB0375.The horizontal coordinates were scaled from a topographic map and have DB0375.an estimated accuracy of +/- 6 seconds. DB0375 DB0375.The orthometric height was determined by differential leveling DB0375.and adjusted by the National Geodetic Survey in March 1994. DB0375 DB0375.The geoid height was determined by GEOID03. DB0375 DB0375.The dynamic height is computed by dividing the NAVD 88 DB0375.geopotential number by the normal gravity value computed on the DB0375.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 DB0375.degrees latitude (g = 980.6199 gals.). DB0375 DB0375.The modeled gravity was interpolated from observed gravity values. DB0375 DB0375; North East Units Estimated Accuracy DB0375;SPC CA 6 - 560,800. 2,114,440. MT (+/- 180 meters Scaled) DB0375 DB0375 SUPERSEDED SURVEY CONTROL DB0375 DB0375 NAVD 88 (06/15/91) 43.174 (m) 141.65 (f) UNKNOWN 1 1 DB0375 NGVD 29 (??/??/??) 42.457 (m) 139.29 (f) ADJUSTED 1 1 DB0375 DB0375.Superseded values are not recommended for survey control. DB0375.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. DB0375.See file dsdata.txt to determine how the superseded data were derived. DB0375 DB0375_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SPS846207(NAD 83) DB0375_MARKER: DB = BENCH MARK DISK DB0375_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT DB0375_SP_SET: SQUARE CONCRETE MONUMENT DB0375_STAMPING: X 613 1941 DOT DB0375_MARK LOGO: CGS DB0375_MAGNETIC: N = NO MAGNETIC MATERIAL DB0375_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO DB0375+STABILITY: SURFACE MOTION DB0375_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR DB0375+SATELLITE: SATELLITE OBSERVATIONS - August 27, 2003 DB0375 DB0375 HISTORY - Date Condition Report By DB0375 HISTORY - 1941 MONUMENTED CGS DB0375 HISTORY - 1972 GOOD NGS DB0375 HISTORY - 1974 GOOD NGS DB0375 HISTORY - 1977 GOOD NGS DB0375 HISTORY - 1981 GOOD NGS DB0375 HISTORY - 1981 GOOD NGS DB0375 HISTORY - 1984 GOOD CA-025 DB0375 HISTORY - 19870910 GOOD CA-025 DB0375 HISTORY - 19901026 GOOD CA-025 DB0375 HISTORY - 19931022 GOOD CA-025 DB0375 HISTORY - 20030827 GOOD JOHFRA DB0375 HISTORY - 20030827 GOOD JOHFRA DB0375 DB0375 STATION DESCRIPTION DB0375 DB0375'DESCRIBED BY NATIONAL GEODETIC SURVEY 1972 DB0375'22.6 MI SE FROM HOLTVILLE. DB0375'22.6 MILES SOUTHEAST ALONG COUNTY ROAD S 80 FROM THE JUNCTION OF DB0375'HOLT AVENUE IN HOLTVILLE, 0.15 MILE WEST OF THE CROSSING OF A DB0375'CANAL, 0.15 MILE EAST OF THE JUNCTION OF A ROAD NORTH TO DB0375'HEADQUARTERS OF BROCK RESEARCH CENTER, 46 FEET SOUTH OF THE CENTER DB0375'LINE OF THE ROAD, 176 FEET NORTHEAST OF A T JUNCTION POWER POLE, DB0375'1 FOOT EAST OF A WOODEN WITNESS POST, 1/2 FOOT LOWER THAN THE DB0375'ROAD AND IN THE TOP OF A CONCRETE POST WHICH PROJECTS 0.3 FOOT. DB0375'SEC 4, T17S, R19E DB0375 DB0375 STATION RECOVERY (1974) DB0375 DB0375'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1974 DB0375'RECOVERED IN GOOD CONDITION. DB0375 DB0375 STATION RECOVERY (1977) DB0375 DB0375'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 DB0375'RECOVERED IN GOOD CONDITION. DB0375 DB0375 STATION RECOVERY (1981) DB0375 DB0375'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1981 DB0375'RECOVERED IN GOOD CONDITION. DB0375 DB0375 STATION RECOVERY (1981) DB0375 DB0375'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1981 DB0375'RECOVERED IN GOOD CONDITION. DB0375 DB0375 STATION RECOVERY (1984) DB0375 DB0375'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1984 DB0375'RECOVERED IN GOOD CONDITION. DB0375 DB0375 STATION RECOVERY (1987) DB0375 DB0375'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1987 DB0375'RECOVERED IN GOOD CONDITION. DB0375 DB0375 STATION RECOVERY (1990) DB0375 DB0375'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1990 DB0375'22.6 MILES (36.4 KM) SOUTHEAST ALONG COUNTY ROAD S 80 FROM THE DB0375'JUNCTION OF HOLT AVENUE IN HOLTVILLE, 0.15 MILE (0.24 KM) WEST OF THE DB0375'CROSSING OF A CANAL, 0.15 MILE (0.24 KM) EAST OF THE JUNCTION OF A DB0375'ROAD NORTH TO HEADQUARTERS OF BROCK RESEARCH CENTER, 46 FEET SOUTH OF DB0375'THE CENTER LINE OF THE ROAD, 176 FEET NORTHEAST OF A T JUNCTION POWER DB0375'POLE, 1 FOOT EAST OF A WOODEN WITNESS POST, 1/2 FOOT LOWER THAN THE DB0375'ROAD AND IN THE TOP OF A CONCRETE POST WHICH PROJECTS 0.3 FOOT. IN DB0375'T17S R19E SEC 4. DB0375 DB0375 STATION RECOVERY (1993) DB0375 DB0375'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1993 (CHL) DB0375'22.6 MI (36.4 KM) SOUTHEAST ALONG HIGHWAY 115, FORMERLY CALLED COUNTY DB0375'ROAD S 80, FROM THE JUNCTION OF HOLT AVENUE IN HOLTVILLE, 0.15 MI DB0375'(0.24 KM) WEST OF THE CROSSING OF A CANAL, 0.15 MI (0.24 KM) EAST OF DB0375'THE JUNCTION OF A ROAD NORTH TO HEADQUARTERS OF BROCK RESEARCH CENTER, DB0375'46 FT (14.0 M) SOUTH OF THE CENTER LINE OF THE ROAD, 176 FT (53.6 M) DB0375'NORTHEAST OF A T JUNCTION POWER POLE, 1 FT (0.3 M) EAST OF A WOODEN DB0375'WITNESS POST, 0.5 FT (15.2 CM) LOWER THAN THE ROAD AND IN THE TOP OF A DB0375'CONCRETE POST WHICH PROJECTS 0.3 FT (9.1 CM). IN T17S R19E SEC 4. DB0375 DB0375 STATION RECOVERY (2003) DB0375 DB0375'RECOVERY NOTE BY JOHNSON-FRANK 2003 (JVF) DB0375'HANDHELD GPS POSITION = N32-42-31.7 W115-01-47.6. DB0375 DB0375 STATION RECOVERY (2003) DB0375 DB0375'RECOVERY NOTE BY JOHNSON-FRANK 2003 DB0375'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 1, 2005 DW0115 *********************************************************************** DW0115 DESIGNATION - Y 611 DW0115 PID - DW0115 DW0115 STATE/COUNTY- CA/IMPERIAL DW0115 USGS QUAD - WISTER (1992) DW0115 DW0115 *CURRENT SURVEY CONTROL DW0115 ___________________________________________________________________ DW0115* NAD 83(1986)- 33 15 18. (N) 115 32 30. (W) SCALED DW0115* NAVD 88 - -50.536 (meters) -165.80 (feet) ADJUSTED DW0115 ___________________________________________________________________ DW0115 GEOID HEIGHT- -33.79 (meters) GEOID03 DW0115 DYNAMIC HT - -50.481 (meters) -165.62 (feet) COMP DW0115 MODELED GRAV- 979,558.8 (mgal) NAVD 88 DW0115 DW0115 VERT ORDER - FIRST CLASS I DW0115 DW0115.The horizontal coordinates were scaled from a topographic map and have DW0115.an estimated accuracy of +/- 6 seconds. DW0115 DW0115.The orthometric height was determined by differential leveling DW0115.and adjusted by the National Geodetic Survey in March 1994. DW0115.WARNING-Repeat measurements at this control monument indicate possible DW0115.vertical movement. DW0115 DW0115.The geoid height was determined by GEOID03. DW0115 DW0115.The dynamic height is computed by dividing the NAVD 88 DW0115.geopotential number by the normal gravity value computed on the DW0115.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 DW0115.degrees latitude (g = 980.6199 gals.). DW0115 DW0115.The modeled gravity was interpolated from observed gravity values. DW0115 DW0115; North East Units Estimated Accuracy DW0115;SPC CA 6 - 620,920. 2,066,000. MT (+/- 180 meters Scaled) DW0115 DW0115 SUPERSEDED SURVEY CONTROL DW0115 DW0115 NAVD 88 (06/15/91) -50.530 (m) -165.78 (f) UNKNOWN 1 1 DW0115 NGVD 29 (??/??/92) -51.235 (m) -168.09 (f) ADJ UNCH 1 1 DW0115 DW0115.Superseded values are not recommended for survey control. DW0115.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. DW0115.See file dsdata.txt to determine how the superseded data were derived. DW0115 DW0115_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SPS358805(NAD 83) DW0115_MARKER: DB = BENCH MARK DISK DW0115_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT DW0115_SP_SET: SQUARE CONCRETE MONUMENT DW0115_STAMPING: Y 611 1941 DW0115_MARK LOGO: CGS DW0115_MAGNETIC: N = NO MAGNETIC MATERIAL DW0115_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO DW0115+STABILITY: SURFACE MOTION DW0115_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR DW0115+SATELLITE: SATELLITE OBSERVATIONS - August 27, 2003 DW0115 DW0115 HISTORY - Date Condition Report By DW0115 HISTORY - 1941 MONUMENTED CGS DW0115 HISTORY - 1971 GOOD NGS DW0115 HISTORY - 1974 GOOD NGS DW0115 HISTORY - 1976 GOOD NGS DW0115 HISTORY - 1978 GOOD NGS DW0115 HISTORY - 1984 GOOD CA-025 DW0115 HISTORY - 1984 GOOD CA-025 DW0115 HISTORY - 1986 GOOD CA-025 DW0115 HISTORY - 19891012 GOOD CA-025 DW0115 HISTORY - 19920918 GOOD CA-025 DW0115 HISTORY - 20030827 GOOD JOHFRA DW0115 HISTORY - 20030827 GOOD JOHFRA DW0115 DW0115 STATION DESCRIPTION DW0115 DW0115'DESCRIBED BY NATIONAL GEODETIC SURVEY 1971 DW0115'2.3 MI NW FROM NILAND. DW0115'2.3 MILES NORTHWEST ALONG THE SOUTHERN PACIFIC COMPANY RAILROAD DW0115'FROM THE CROSSING OF MAIN STREET AT NILAND, 0.2 MILE SOUTHEAST DW0115'OF THE CROSSING OF ENGLISH ROAD, 2 1/2 POLES NORTHWEST OF THE DW0115'NORTHWEST END OF A SIDING, 15 1/2 POLES NORTHWEST OF MILEPOLE DW0115'666, 122 FEET WEST AND ACROSS THE TRACK FROM THE 15TH TELEPHONE DW0115'POLE NORTHWEST OF THE MILEPOLE, 45.0 FEET SOUTHWEST OF THE DW0115'SOUTHEAST RAIL, 42 FEET NORTHWEST OF A TELEPHONE POLE, 2.6 DW0115'FEET SOUTHEAST OF A WOODEN WITNESS POST, 1.9 FEET NORTHWEST DW0115'OF A WITNESS POST, ABOUT 3 FEET LOWER THAN THE TRACK, AND SET IN DW0115'THE TOP OF A CONCRETE POST PROJECTING 0.1 FOOT ABOVE THE GROUND. DW0115 DW0115 STATION RECOVERY (1974) DW0115 DW0115'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1974 DW0115'RECOVERED IN GOOD CONDITION. DW0115 DW0115 STATION RECOVERY (1976) DW0115 DW0115'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 DW0115'RECOVERED IN GOOD CONDITION. DW0115 DW0115 STATION RECOVERY (1978) DW0115 DW0115'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978 DW0115'RECOVERED IN GOOD CONDITION. DW0115 DW0115 STATION RECOVERY (1984) DW0115 DW0115'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1984 DW0115'RECOVERED IN GOOD CONDITION. THE 1941 DESCRIPTION IS ADEQUATE EXCEPT DW0115'THAT IT IS 0.15 MILE EAST OF ENGLISH ROAD ALONG RAILROAD TRACKS. DW0115 DW0115 STATION RECOVERY (1984) DW0115 DW0115'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1984 DW0115'RECOVERED IN GOOD CONDITION. DW0115 DW0115 STATION RECOVERY (1986) DW0115 DW0115'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1986 DW0115'RECOVERED IN GOOD CONDITION. DW0115 DW0115 STATION RECOVERY (1989) DW0115 DW0115'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1989 DW0115'RECOVERED IN GOOD CONDITION. DW0115 DW0115 STATION RECOVERY (1992) DW0115 DW0115'RECOVERY NOTE BY IMPERIAL COUNTY CALIFORNIA 1992 DW0115'RECOVERED IN GOOD CONDITION. DW0115 DW0115 STATION RECOVERY (2003) DW0115 DW0115'RECOVERY NOTE BY JOHNSON-FRANK 2003 (JVF) DW0115'HANDHELD GPS POSITION = N33-15-21.9 W115-32-30.9. DW0115 DW0115 STATION RECOVERY (2003) DW0115 DW0115'RECOVERY NOTE BY JOHNSON-FRANK 2003 DW0115'RECOVERED IN GOOD CONDITION.