# ---------------------------------- WARNING ---------------------------------------- # Some of the data that you have obtained from this U.S. Geological Survey database # may not have received Director's approval. Any such data values are qualified # as provisional and are subject to revision. Provisional data are released on the # condition that neither the USGS nor the United States Government may be held liable # for any damages resulting from its use. # # Additional info: https://waterdata.usgs.gov/provisional-data-statement/ # # File-format description: https://help.waterdata.usgs.gov/faq/about-tab-delimited-output # Automated-retrieval info: https://help.waterdata.usgs.gov/faq/automated-retrievals # # Contact: gs-w_waterdata_support@usgs.gov # retrieved: 2024-05-01 22:50:59 EDT (nadww02) # # US Geological Survey groundwater levels # # Data for the following 1 site(s) are contained in this file # USGS 311319086153601 Well COVINGTON COUNTY WELL 1 Covington Cnty # ----------------------------------------------------------------------------------- # # The fields in this file include: # --------------------------------- # agency_cd Agency code # site_no USGS site number # site_tp_cd Site type code # lev_dt Date level measured # lev_tm Time level measured # lev_tz_cd Time datum # lev_va Water-level value in feet below land surface # sl_lev_va Water-level value in feet above specific vertical datum # sl_datum_cd Referenced vertical datum # lev_status_cd Status # lev_agency_cd Measuring agency # lev_dt_acy_cd Water-level date-time accuracy # lev_acy_cd Water-level accuracy # lev_src_cd Source of measurement # lev_meth_cd Method of measurement # lev_age_cd Water-level approval status # # Referenced agency codes (lev_agency_cd) included in this output: # # USGS U.S. Geological Survey # # Referenced site type codes (site_tp_cd) included in this output: # # GW Well # # Referenced vertical datum codes (sl_datum_cd) included in this output: # # NAVD88 North American Vertical Datum of 1988 # NGVD29 National Geodetic Vertical Datum of 1929 # # Referenced water-level site status codes (lev_status_cd) included in this output: # # "" The reported water-level measurement represents a static level # 1 Static # # Referenced water-level date-time accuracy codes (lev_dt_acy_cd) included in this output: # # m Date is accurate to the Minute # # Referenced water-level accuracy codes (lev_acy_cd) included in this output: # # 2 Water level accuracy to nearest hundredth of a foot # U Water level accuracy is unknown # # Referenced source of measurement codes (lev_src_cd) included in this output: # # S Measured by personnel of reporting agency. # # Referenced method of measurement codes (lev_meth_cd) included in this output: # # F Transducer. # S Steel-tape measurement. # T Electric-tape measurement. # V Calibrated electric-tape measurement. # Z Other. # # Referenced water-level approval-status codes (lev_age_cd) included in this output: # # A Approved for publication -- Processing and review completed. # P Provisional data subject to revision. # agency_cd site_no site_tp_cd lev_dt lev_tm lev_tz_cd lev_va sl_lev_va sl_datum_cd lev_status_cd lev_agency_cd lev_dt_acy_cd lev_acy_cd lev_src_cd lev_meth_cd lev_age_cd 5s 15s 6s 10d 5d 5s 12s 12s 10s 1s 5s 1s 1s 1s 1s 1s USGS 311319086153601 GW 2006-08-16 15:20 UTC 280.75 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2006-08-16 15:20 UTC 280.65 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2006-08-16 15:20 UTC 19.35 1 USGS m 2 S S A USGS 311319086153601 GW 2006-08-24 12:07 UTC 280.52 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2006-08-24 12:07 UTC 280.42 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2006-08-24 12:07 UTC 19.58 1 USGS m 2 S S A USGS 311319086153601 GW 2006-10-13 12:40 UTC 280.83 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2006-10-13 12:40 UTC 280.73 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2006-10-13 12:40 UTC 19.27 1 USGS m 2 S S A USGS 311319086153601 GW 2006-11-29 20:00 UTC 287.90 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2006-11-29 20:00 UTC 287.80 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2006-11-29 20:00 UTC 12.20 1 USGS m 2 S S A USGS 311319086153601 GW 2007-01-25 16:30 UTC 292.18 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2007-01-25 16:30 UTC 292.08 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2007-01-25 16:30 UTC 7.92 1 USGS m 2 S S A USGS 311319086153601 GW 2007-04-18 16:13 UTC 293.75 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2007-04-18 16:13 UTC 293.65 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2007-04-18 16:13 UTC 6.35 1 USGS m 2 S S A USGS 311319086153601 GW 2007-05-31 15:35 UTC 287.17 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2007-05-31 15:35 UTC 287.07 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2007-05-31 15:35 UTC 12.93 1 USGS m 2 S S A USGS 311319086153601 GW 2007-07-10 18:00 UTC 283.40 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2007-07-10 18:00 UTC 283.30 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2007-07-10 18:00 UTC 16.70 1 USGS m 2 S S A USGS 311319086153601 GW 2007-08-21 16:03 UTC 282.31 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2007-08-21 16:03 UTC 282.21 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2007-08-21 16:03 UTC 17.79 1 USGS m 2 S S A USGS 311319086153601 GW 2007-10-03 16:20 UTC 282.07 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2007-10-03 16:20 UTC 281.97 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2007-10-03 16:20 UTC 18.03 1 USGS m 2 S S A USGS 311319086153601 GW 2007-11-15 16:10 UTC 285.82 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2007-11-15 16:10 UTC 285.72 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2007-11-15 16:10 UTC 14.28 1 USGS m 2 S S A USGS 311319086153601 GW 2007-12-19 15:10 UTC 289.63 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2007-12-19 15:10 UTC 289.53 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2007-12-19 15:10 UTC 10.47 1 USGS m 2 S S A USGS 311319086153601 GW 2008-02-15 13:50 UTC 294.31 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2008-02-15 13:50 UTC 294.21 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2008-02-15 13:50 UTC 5.79 1 USGS m 2 S S A USGS 311319086153601 GW 2008-03-28 12:30 UTC 292.09 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2008-03-28 12:30 UTC 291.99 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2008-03-28 12:30 UTC 8.01 1 USGS m 2 S S A USGS 311319086153601 GW 2008-04-24 12:35 UTC 290.73 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2008-04-24 12:35 UTC 290.63 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2008-04-24 12:35 UTC 9.37 1 USGS m 2 S S A USGS 311319086153601 GW 2008-06-12 17:55 UTC 284.83 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2008-06-12 17:55 UTC 284.73 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2008-06-12 17:55 UTC 15.27 1 USGS m 2 S S A USGS 311319086153601 GW 2008-07-09 19:01 UTC 285.79 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2008-07-09 19:01 UTC 285.69 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2008-07-09 19:01 UTC 14.31 1 USGS m 2 S S A USGS 311319086153601 GW 2008-11-19 19:25 UTC 287.40 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2008-11-19 19:25 UTC 287.30 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2008-11-19 19:25 UTC 12.70 1 USGS m 2 S S A USGS 311319086153601 GW 2009-01-15 15:35 UTC 293.48 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2009-01-15 15:35 UTC 293.38 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2009-01-15 15:35 UTC 6.62 1 USGS m 2 S S A USGS 311319086153601 GW 2009-03-12 15:05 UTC 290.10 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2009-03-12 15:05 UTC 290.00 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2009-03-12 15:05 UTC 10.00 1 USGS m 2 S S A USGS 311319086153601 GW 2009-04-30 15:30 UTC 291.95 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2009-04-30 15:30 UTC 291.85 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2009-04-30 15:30 UTC 8.15 1 USGS m 2 S S A USGS 311319086153601 GW 2009-09-02 16:10 UTC 292.06 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2009-09-02 16:10 UTC 291.96 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2009-09-02 16:10 UTC 8.04 1 USGS m 2 S S A USGS 311319086153601 GW 2009-10-08 15:00 UTC 291.33 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2009-10-08 15:00 UTC 291.23 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2009-10-08 15:00 UTC 8.77 1 USGS m 2 S S A USGS 311319086153601 GW 2010-01-14 15:35 UTC 292.34 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2010-01-14 15:35 UTC 292.24 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2010-01-14 15:35 UTC 7.76 1 USGS m 2 S S A USGS 311319086153601 GW 2010-03-04 17:20 UTC 293.34 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2010-03-04 17:20 UTC 293.24 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2010-03-04 17:20 UTC 6.76 1 USGS m 2 S S A USGS 311319086153601 GW 2010-05-06 15:50 UTC 290.00 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2010-05-06 15:50 UTC 289.90 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2010-05-06 15:50 UTC 10.10 1 USGS m 2 S S A USGS 311319086153601 GW 2010-07-28 16:05 UTC 284.89 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2010-07-28 16:05 UTC 284.79 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2010-07-28 16:05 UTC 15.21 1 USGS m 2 S S A USGS 311319086153601 GW 2010-09-09 20:00 UTC 283.31 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2010-09-09 20:00 UTC 283.21 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2010-09-09 20:00 UTC 16.79 1 USGS m 2 S S A USGS 311319086153601 GW 2010-10-06 12:55 UTC 282.79 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2010-10-06 12:55 UTC 282.69 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2010-10-06 12:55 UTC 17.31 1 USGS m 2 S S A USGS 311319086153601 GW 2017-06-13 16:01 UTC 289.49 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2017-06-13 16:01 UTC 289.39 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2017-06-13 16:01 UTC 10.61 1 USGS m 2 S S A USGS 311319086153601 GW 2017-07-25 15:59 UTC 293.78 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2017-07-25 15:59 UTC 293.68 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2017-07-25 15:59 UTC 6.32 1 USGS m 2 S S A USGS 311319086153601 GW 2017-09-20 15:17 UTC 293.61 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2017-09-20 15:17 UTC 293.51 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2017-09-20 15:17 UTC 6.49 1 USGS m 2 S S A USGS 311319086153601 GW 2017-11-02 07:15 UTC 293.12 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2017-11-02 07:15 UTC 293.02 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2017-11-02 07:15 UTC 6.98 1 USGS m 2 S S A USGS 311319086153601 GW 2017-12-11 19:11 UTC 289.71 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2017-12-11 19:11 UTC 289.61 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2017-12-11 19:11 UTC 10.39 1 USGS m 2 S S A USGS 311319086153601 GW 2018-01-25 21:31 UTC 288.17 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2018-01-25 21:31 UTC 288.07 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2018-01-25 21:31 UTC 11.93 1 USGS m 2 S S A USGS 311319086153601 GW 2018-02-09 17:48 UTC 288.82 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2018-02-09 17:48 UTC 288.72 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2018-02-09 17:48 UTC 11.28 1 USGS m 2 S S A USGS 311319086153601 GW 2018-03-13 13:55 UTC 291.25 NGVD29 1 USGS m 2 S T A USGS 311319086153601 GW 2018-03-13 13:55 UTC 291.15 NAVD88 1 USGS m 2 S T A USGS 311319086153601 GW 2018-03-13 13:55 UTC 8.85 1 USGS m 2 S T A USGS 311319086153601 GW 2018-05-16 20:26 UTC 287.50 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2018-05-16 20:26 UTC 287.40 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2018-05-16 20:26 UTC 12.60 1 USGS m 2 S S A USGS 311319086153601 GW 2018-05-18 15:33 UTC 287.34 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2018-05-18 15:33 UTC 287.24 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2018-05-18 15:33 UTC 12.76 1 USGS m 2 S S A USGS 311319086153601 GW 2018-07-13 13:36 UTC 292.20 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2018-07-13 13:36 UTC 292.10 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2018-07-13 13:36 UTC 7.90 1 USGS m 2 S S A USGS 311319086153601 GW 2018-09-11 19:04 UTC 289.84 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2018-09-11 19:04 UTC 289.74 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2018-09-11 19:04 UTC 10.26 1 USGS m 2 S S A USGS 311319086153601 GW 2019-09-18 15:54 UTC 286.02 NGVD29 1 USGS m 2 S T A USGS 311319086153601 GW 2019-09-18 15:54 UTC 285.92 NAVD88 1 USGS m 2 S T A USGS 311319086153601 GW 2019-09-18 15:54 UTC 14.08 1 USGS m 2 S T A USGS 311319086153601 GW 2020-03-03 20:54 UTC 293.80 NGVD29 1 USGS m 2 S T A USGS 311319086153601 GW 2020-03-03 20:54 UTC 293.70 NAVD88 1 USGS m 2 S T A USGS 311319086153601 GW 2020-03-03 20:54 UTC 6.30 1 USGS m 2 S T A USGS 311319086153601 GW 2020-05-19 20:22 UTC 288.93 NGVD29 USGS m 2 S S A USGS 311319086153601 GW 2020-05-19 20:22 UTC 288.83 NAVD88 USGS m 2 S S A USGS 311319086153601 GW 2020-11-16 18:50 UTC 289.48 NGVD29 1 USGS m U S S A USGS 311319086153601 GW 2020-11-16 18:50 UTC 289.38 NAVD88 1 USGS m U S S A USGS 311319086153601 GW 2021-02-10 18:22 UTC 292.35 NGVD29 1 USGS m U S S A USGS 311319086153601 GW 2021-02-10 18:22 UTC 292.25 NAVD88 1 USGS m U S S A USGS 311319086153601 GW 2021-03-16 18:48 UTC 292.45 NGVD29 USGS m 2 S S A USGS 311319086153601 GW 2021-03-16 18:48 UTC 292.35 NAVD88 USGS m 2 S S A USGS 311319086153601 GW 2021-05-13 20:28 UTC 294.02 NGVD29 1 USGS m U S S A USGS 311319086153601 GW 2021-05-13 20:28 UTC 293.92 NAVD88 1 USGS m U S S A USGS 311319086153601 GW 2021-07-14 18:38 UTC 292.94 NGVD29 1 USGS m U S S A USGS 311319086153601 GW 2021-07-14 18:38 UTC 292.84 NAVD88 1 USGS m U S S A USGS 311319086153601 GW 2021-09-07 20:53 UTC 288.07 NGVD29 1 USGS m U S S A USGS 311319086153601 GW 2021-09-07 20:53 UTC 287.97 NAVD88 1 USGS m U S S A USGS 311319086153601 GW 2021-10-25 23:51 UTC 289.60 NGVD29 1 USGS m U S T A USGS 311319086153601 GW 2021-10-25 23:51 UTC 289.50 NAVD88 1 USGS m U S T A USGS 311319086153601 GW 2021-12-09 17:31 UTC 287.16 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2021-12-09 17:31 UTC 287.06 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2021-12-09 17:31 UTC 12.94 1 USGS m 2 S V A USGS 311319086153601 GW 2022-01-05 19:17 UTC 291.80 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2022-01-05 19:17 UTC 291.70 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2022-01-05 19:17 UTC 8.30 1 USGS m 2 S V A USGS 311319086153601 GW 2022-02-03 16:30 UTC 291.07 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2022-02-03 16:30 UTC 290.97 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2022-02-03 16:30 UTC 9.03 1 USGS m 2 S V A USGS 311319086153601 GW 2022-03-30 21:35 UTC 292.20 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2022-03-30 21:35 UTC 292.10 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2022-03-30 21:35 UTC 7.90 1 USGS m 2 S V A USGS 311319086153601 GW 2022-03-31 13:45 UTC 292.13 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2022-03-31 13:45 UTC 292.03 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2022-03-31 13:45 UTC 7.97 1 USGS m 2 S V A USGS 311319086153601 GW 2022-05-24 12:44 UTC 288.30 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2022-05-24 12:44 UTC 288.20 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2022-05-24 12:44 UTC 11.80 1 USGS m 2 S V A USGS 311319086153601 GW 2022-07-19 15:00 UTC 289.47 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2022-07-19 15:00 UTC 289.37 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2022-07-19 15:00 UTC 10.63 1 USGS m 2 S V A USGS 311319086153601 GW 2022-09-21 15:30 UTC 288.45 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2022-09-21 15:30 UTC 288.35 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2022-09-21 15:30 UTC 11.65 1 USGS m 2 S V A USGS 311319086153601 GW 2023-01-24 18:00 UTC 294.87 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2023-01-24 18:00 UTC 294.77 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2023-01-24 18:00 UTC 5.23 1 USGS m 2 S V A USGS 311319086153601 GW 2023-03-01 21:09 UTC 290.17 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2023-03-01 21:09 UTC 290.07 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2023-03-01 21:09 UTC 9.93 1 USGS m 2 S V A USGS 311319086153601 GW 2023-05-24 20:26 UTC 294.22 NGVD29 1 USGS m 2 S V A USGS 311319086153601 GW 2023-05-24 20:26 UTC 294.12 NAVD88 1 USGS m 2 S V A USGS 311319086153601 GW 2023-05-24 20:26 UTC 5.88 1 USGS m 2 S V A USGS 311319086153601 GW 2023-06-07 19:18 UTC 291.23 NGVD29 1 USGS m 2 S S A USGS 311319086153601 GW 2023-06-07 19:18 UTC 291.13 NAVD88 1 USGS m 2 S S A USGS 311319086153601 GW 2023-06-07 19:18 UTC 8.87 1 USGS m 2 S S A USGS 311319086153601 GW 2023-09-26 13:00 UTC 284.02 NGVD29 1 USGS m 2 S F P USGS 311319086153601 GW 2023-09-26 13:00 UTC 283.92 NAVD88 1 USGS m 2 S F P USGS 311319086153601 GW 2023-09-26 13:00 UTC 16.08 1 USGS m 2 S V P USGS 311319086153601 GW 2024-03-12 19:02 UTC 294.43 NGVD29 1 USGS m 2 S V P USGS 311319086153601 GW 2024-03-12 19:02 UTC 294.33 NAVD88 1 USGS m 2 S Z P USGS 311319086153601 GW 2024-03-12 19:02 UTC 5.67 1 USGS m 2 S V P