# # U.S. Geological Survey, National Water Information System # Surface water measurements # # Retrieved: 2026-01-06 19:52:20 EST (caww02) # # Further descriptions of the columns and codes used can be found at: # https://help.waterdata.usgs.gov/output-formats#streamflow_measurement_data # # Data for the following 1 site(s) are contained in this file # USGS 16816000 Umatac River at Umatac, Guam # ----------------------------------------------------------------------------------- # # agency_cd site_no measurement_nu measurement_dt tz_cd q_meas_used_fg party_nm site_visit_coll_agency_cd gage_height_va discharge_va measured_rating_diff gage_va_change gage_va_time control_type_cd discharge_cd 5s 15s 6s 19d 12s 1s 12s 5s 12s 12s 12s 7s 6s 21s 15s USGS 16816000 246 1975-09-02 15:05:00 GST Yes jq USGS 0.33 3.53 Good 0.00 0.30 NONE USGS 16816000 247 1975-10-01 15:16:00 GST Yes db USGS 0.37 4.42 Good 0.00 0.30 NONE USGS 16816000 295 2001-07-27 15:30:00 GST Yes lvm USGS 1.16 3.50 Fair -0.01 1.00 Clear NONE USGS 16816000 296 2001-09-13 11:20:00 GST Yes lvm USGS 1.23 5.23 Poor -0.01 0.40 Clear NONE USGS 16816000 297 2001-11-27 13:45:00 GST Yes lvm/ns USGS 1.30 7.26 Poor -0.01 0.40 Clear NONE USGS 16816000 298 2002-01-30 10:30:00 GST Yes cwy/ns USGS 1.16 3.98 Poor 0.00 0.30 Clear NONE USGS 16816000 299 2002-03-18 12:30:00 GST Yes lvm USGS 1.09 1.90 Poor 0.00 0.40 Clear NONE USGS 16816000 300 2002-05-22 13:22:00 GST Yes lvm/ns USGS 1.10 2.58 Fair 0.00 0.40 Clear NONE USGS 16816000 302 2002-10-17 11:05:00 GST Yes lvm/jn USGS 1.18 4.75 Poor 0.00 0.40 Clear NONE USGS 16816000 304 2002-12-09 12:00:00 GST Yes lvm USGS 1.68 36.2 Fair -0.01 0.20 Clear NONE USGS 16816000 305 2003-02-03 13:40:00 GST Yes lvm/gr USGS 1.05 1.90 Fair 0.00 0.30 Clear NONE USGS 16816000 306 2003-03-31 13:58:00 GST Yes lvm/jn USGS 0.98 0.98 Fair 0.00 0.50 Clear NONE USGS 16816000 307 2003-06-03 11:00:00 GST Yes lvm/gr USGS 0.97 0.91 Fair 0.00 0.40 Clear NONE USGS 16816000 308 2003-08-19 13:15:00 GST Yes gar/lvm USGS 1.33 9.37 Fair 0.00 0.50 Clear NONE USGS 16816000 309 2003-11-04 15:50:00 GST Yes lvm USGS 1.23 5.68 Poor -0.01 0.80 VegetationLight NONE USGS 16816000 310 2003-12-22 14:50:00 GST Yes jwn/kt USGS 1.46 13.3 Fair -0.02 1.20 Clear NONE USGS 16816000 311 2004-03-15 10:35:00 GST Yes lvm/gar USGS 1.13 2.68 Poor 0.00 0.40 VegetationLight NONE USGS 16816000 312 2004-03-15 13:45:00 GST Yes lvm/gar USGS 1.08 2.68 Poor 0.00 0.40 VegetationLight NONE USGS 16816000 313 2004-05-20 11:11:00 GST Yes jwn/kt USGS 0.99 1.56 Fair 0.00 0.80 Clear NONE USGS 16816000 314 2004-06-27 23:59:00 GST Yes RAF USGS 5.32 2070 Poor NONE USGS 16816000 315 2004-07-13 15:05:00 GST Yes JWN/RLC USGS 1.13 4.44 Fair 0.02 0.80 Clear NONE USGS 16816000 316 2004-09-10 13:45:00 GST Yes BH /JWN USGS 1.23 6.05 Poor -0.01 0.30 NONE USGS 16816000 317 2004-10-26 15:30:00 GST Yes JWN/MTB USGS 1.15 3.86 Good -0.01 0.70 VegetationLight NONE USGS 16816000 318 2004-12-02 15:00:00 GST Yes JWN/BRH USGS 1.14 3.77 Fair 0.00 0.60 NONE USGS 16816000 319 2005-02-22 14:45:00 GST Yes BRH/DCN USGS 0.99 1.36 Fair -0.01 0.70 VegetationLight NONE USGS 16816000 320 2005-05-16 12:53:00 GST Yes DCN/RJC USGS 0.92 0.82 Poor 0.00 0.60 DebrisLight NONE USGS 16816000 321 2005-09-01 13:14:00 GST Yes DCN/STY USGS 2.07 61.7 Good Clear NONE USGS 16816000 322 2005-11-30 13:20:00 GST Yes DCN USGS 1.07 3.69 Poor -0.01 1.10 Clear NONE USGS 16816000 323 2006-02-26 11:17:00 GST Yes DCN USGS 0.93 1.30 Poor -0.01 0.80 DebrisLight NONE USGS 16816000 324 2006-05-25 14:47:00 GST Yes DCN/MTJ USGS 0.83 0.56 Poor 0.00 0.60 DebrisLight NONE USGS 16816000 325 2006-05-25 14:47:00 GST Yes DCN/MTJ USGS 0.80 0.56 Poor 0.00 0.60 DebrisLight NONE USGS 16816000 326 2006-08-30 16:18:00 GST Yes DCN USGS 1.16 6.71 Fair -0.01 0.50 DebrisLight NONE USGS 16816000 327 2006-11-29 14:16:00 GST Yes CWY USGS 1.05 3.00 Fair 0.00 0.70 DebrisLight NONE USGS 16816000 328 2006-11-29 14:16:00 GST Yes CWY USGS 1.01 3.00 Fair 0.00 0.70 DebrisLight NONE USGS 16816000 329 2007-03-20 11:50:00 GST Yes CWY/KTT USGS 0.88 1.04 Good 0.00 0.60 VegetationLight NONE USGS 16816000 330 2007-06-06 10:07:00 GST Yes CWY/KTT USGS 0.84 0.65 Fair 0.00 0.40 Clear NONE USGS 16816000 331 2007-09-25 14:15:00 GST Yes CWY/KTT USGS 1.32 9.62 Fair 0.00 0.60 Clear NONE USGS 16816000 332 2007-12-14 11:00:00 GST Yes CWY/KTT USGS 1.49 3.87 Fair 0.00 0.60 Unspecifed NONE USGS 16816000 333 2008-02-28 14:09:00 GST Yes CWY/RLR USGS 1.63 4.89 Unspecified Unspecifed NONE USGS 16816000 334 2008-06-10 14:15:00 GST Yes CWY/KTT USGS 1.39 0.79 Good 0.00 Unspecifed NONE USGS 16816000 335 2008-09-18 10:37:24 GST Yes CWY/MTJ USGS 1.53 4.90 Fair 0.00 0.60 Clear NONE USGS 16816000 336 2009-02-27 15:29:00 GST Yes CWY/KTT USGS 1.13 0.97 Good 0.00 0.80 Unspecifed NONE USGS 16816000 337 2009-06-18 11:40:30 GST Yes CWY/KTT USGS 1.32 0.76 Poor 0.00 0.80 FillControlChanged NONE USGS 16816000 339 2009-10-15 15:39:00 GST Yes cwy/ktt USGS 1.96 14.9 Good Unspecifed NONE USGS 16816000 341 2010-03-03 17:44:00 GST Yes CWY/MTJ USGS -0.58 1.01 Poor 0.00 0.40 ScourControlChanged NONE USGS 16816000 349 2010-06-11 16:01:30 GST Yes MTJ/CWY USGS 0.01 0.34 Poor 0.40 ScourControlChanged NONE USGS 16816000 342 2010-10-20 15:05:30 GST Yes CWY/MTJ USGS 1.04 5.04 Fair 0.00 0.70 Unspecifed NONE USGS 16816000 343 2011-01-14 11:56:00 GST Yes CWY/DCN USGS 0.84 3.91 Good 0.00 Clear NONE USGS 16816000 344 2011-04-07 14:02:00 GST Yes CWY/VEK USGS 1.12 2.78 Fair NONE USGS 16816000 345 2011-07-05 14:02:00 GST Yes CWY/DCN USGS 1.12 2.60 Fair Clear NONE USGS 16816000 346 2011-07-06 13:02:30 GST Yes CWY/DCN USGS 1.47 10.4 Fair -0.04 0.40 Clear NONE USGS 16816000 347 2011-07-06 13:29:00 GST Yes CWY/DCN USGS 1.43 9.48 Good -0.02 Clear NONE USGS 16816000 348 2011-10-18 11:09:30 GST Yes CWY/BHS USGS 1.35 4.63 Good 0.00 Clear NONE