# ---------------------------------- 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: 2024-05-03 12:35:09 EDT (nadww02) # # US Geological Survey groundwater levels # # Data for the following 1 site(s) are contained in this file # USGS 403751073440204 N 6242. 1 # ----------------------------------------------------------------------------------- # # 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 # 4 Groundwater level affected by tide # # Referenced water-level date-time accuracy codes (lev_dt_acy_cd) included in this output: # # D Date is accurate to the Day # 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 # # 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: # # O Observed. # S Steel-tape measurement. # # Referenced water-level approval-status codes (lev_age_cd) included in this output: # # A Approved for publication -- Processing and review completed. # 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 403751073440204 GW 1968-05-01 1.83 NGVD29 USGS D 2 S O A USGS 403751073440204 GW 1968-05-01 0.72 NAVD88 USGS D 2 S O A USGS 403751073440204 GW 1968-05-01 5.17 USGS D 2 S O A USGS 403751073440204 GW 1968-10-28 1.26 NGVD29 USGS D 2 S O A USGS 403751073440204 GW 1968-10-28 0.15 NAVD88 USGS D 2 S O A USGS 403751073440204 GW 1968-10-28 5.74 USGS D 2 S O A USGS 403751073440204 GW 1969-04-24 2.48 NGVD29 USGS D 2 S O A USGS 403751073440204 GW 1969-04-24 1.37 NAVD88 USGS D 2 S O A USGS 403751073440204 GW 1969-04-24 4.52 USGS D 2 S O A USGS 403751073440204 GW 1969-10-30 2.79 NGVD29 USGS D 2 S O A USGS 403751073440204 GW 1969-10-30 1.68 NAVD88 USGS D 2 S O A USGS 403751073440204 GW 1969-10-30 4.21 USGS D 2 S O A USGS 403751073440204 GW 1970-04-29 3.12 NGVD29 USGS D 2 S O A USGS 403751073440204 GW 1970-04-29 2.01 NAVD88 USGS D 2 S O A USGS 403751073440204 GW 1970-04-29 3.88 USGS D 2 S O A USGS 403751073440204 GW 1970-11-03 3.04 NGVD29 USGS D 2 S O A USGS 403751073440204 GW 1970-11-03 1.93 NAVD88 USGS D 2 S O A USGS 403751073440204 GW 1970-11-03 3.96 USGS D 2 S O A USGS 403751073440204 GW 1971-04-26 2.10 NGVD29 USGS D 2 S O A USGS 403751073440204 GW 1971-04-26 0.99 NAVD88 USGS D 2 S O A USGS 403751073440204 GW 1971-04-26 4.90 USGS D 2 S O A USGS 403751073440204 GW 1971-10-04 2.09 NGVD29 USGS D 2 S O A USGS 403751073440204 GW 1971-10-04 0.98 NAVD88 USGS D 2 S O A USGS 403751073440204 GW 1971-10-04 4.91 USGS D 2 S O A USGS 403751073440204 GW 1971-12-22 2.18 NGVD29 USGS D 2 S O A USGS 403751073440204 GW 1971-12-22 1.07 NAVD88 USGS D 2 S O A USGS 403751073440204 GW 1971-12-22 4.82 USGS D 2 S O A USGS 403751073440204 GW 1972-03-22 1.50 NGVD29 USGS D 2 S O A USGS 403751073440204 GW 1972-03-22 0.39 NAVD88 USGS D 2 S O A USGS 403751073440204 GW 1972-03-22 5.50 USGS D 2 S O A USGS 403751073440204 GW 1972-07-17 1.51 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1972-07-17 0.40 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1972-07-17 5.49 1 USGS D 2 S O A USGS 403751073440204 GW 1973-03-19 2.67 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1973-03-19 1.56 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1973-03-19 4.33 1 USGS D 2 S O A USGS 403751073440204 GW 1973-04-05 2.31 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1973-04-05 1.20 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1973-04-05 4.69 1 USGS D 2 S O A USGS 403751073440204 GW 1973-06-18 2.84 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1973-06-18 1.73 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1973-06-18 4.16 1 USGS D 2 S O A USGS 403751073440204 GW 1973-09-26 2.05 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1973-09-26 0.94 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1973-09-26 4.95 1 USGS D 2 S O A USGS 403751073440204 GW 1973-12-26 1.96 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1973-12-26 0.85 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1973-12-26 5.04 1 USGS D 2 S O A USGS 403751073440204 GW 1974-04-10 2.39 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1974-04-10 1.28 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1974-04-10 4.61 1 USGS D 2 S O A USGS 403751073440204 GW 1974-06-21 2.77 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1974-06-21 1.66 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1974-06-21 4.23 1 USGS D 2 S O A USGS 403751073440204 GW 1974-10-01 2.58 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1974-10-01 1.47 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1974-10-01 4.42 1 USGS D 2 S O A USGS 403751073440204 GW 1974-12-19 2.75 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1974-12-19 1.64 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1974-12-19 4.25 1 USGS D 2 S O A USGS 403751073440204 GW 1975-03-28 2.90 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1975-03-28 1.79 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1975-03-28 4.10 1 USGS D 2 S O A USGS 403751073440204 GW 1975-06-30 3.65 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1975-06-30 2.54 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1975-06-30 3.35 1 USGS D 2 S O A USGS 403751073440204 GW 1975-10-08 2.78 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1975-10-08 1.67 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1975-10-08 4.22 1 USGS D 2 S O A USGS 403751073440204 GW 1975-12-19 1.65 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1975-12-19 0.54 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1975-12-19 5.35 1 USGS D 2 S O A USGS 403751073440204 GW 1976-03-18 1.35 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1976-03-18 0.24 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1976-03-18 5.65 1 USGS D 2 S O A USGS 403751073440204 GW 1976-06-29 1.61 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1976-06-29 0.50 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1976-06-29 5.39 1 USGS D 2 S O A USGS 403751073440204 GW 1976-09-28 1.53 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1976-09-28 0.42 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1976-09-28 5.47 1 USGS D 2 S O A USGS 403751073440204 GW 1976-12-22 0.86 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1976-12-22 -0.25 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1976-12-22 6.14 1 USGS D 2 S O A USGS 403751073440204 GW 1977-04-07 1.74 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1977-04-07 0.63 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1977-04-07 5.26 1 USGS D 2 S O A USGS 403751073440204 GW 1977-06-22 1.63 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1977-06-22 0.52 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1977-06-22 5.37 1 USGS D 2 S O A USGS 403751073440204 GW 1977-09-20 1.68 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1977-09-20 0.57 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1977-09-20 5.32 1 USGS D 2 S O A USGS 403751073440204 GW 1978-01-10 1.86 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1978-01-10 0.75 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1978-01-10 5.14 1 USGS D 2 S O A USGS 403751073440204 GW 1978-04-06 1.68 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1978-04-06 0.57 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1978-04-06 5.32 1 USGS D 2 S O A USGS 403751073440204 GW 1978-06-21 1.77 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1978-06-21 0.66 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1978-06-21 5.23 1 USGS D 2 S O A USGS 403751073440204 GW 1978-10-02 2.00 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1978-10-02 0.89 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1978-10-02 5.00 1 USGS D 2 S O A USGS 403751073440204 GW 1978-12-19 0.91 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1978-12-19 -0.20 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1978-12-19 6.09 1 USGS D 2 S O A USGS 403751073440204 GW 1979-02-01 2.63 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1979-02-01 1.52 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1979-02-01 4.37 1 USGS D 2 S O A USGS 403751073440204 GW 1979-04-13 1.78 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1979-04-13 0.67 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1979-04-13 5.22 1 USGS D 2 S O A USGS 403751073440204 GW 1979-06-27 1.72 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1979-06-27 0.61 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1979-06-27 5.28 1 USGS D 2 S O A USGS 403751073440204 GW 1979-09-20 1.57 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1979-09-20 0.46 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1979-09-20 5.43 1 USGS D 2 S O A USGS 403751073440204 GW 1979-12-19 1.54 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1979-12-19 0.43 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1979-12-19 5.46 1 USGS D 2 S O A USGS 403751073440204 GW 1980-03-17 2.11 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1980-03-17 1.00 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1980-03-17 4.89 1 USGS D 2 S O A USGS 403751073440204 GW 1980-06-18 1.89 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1980-06-18 0.78 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1980-06-18 5.11 1 USGS D 2 S O A USGS 403751073440204 GW 1980-09-24 1.60 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1980-09-24 0.49 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1980-09-24 5.40 1 USGS D 2 S O A USGS 403751073440204 GW 1980-12-23 0.95 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1980-12-23 -0.16 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1980-12-23 6.05 1 USGS D 2 S O A USGS 403751073440204 GW 1981-03-27 1.51 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1981-03-27 0.40 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1981-03-27 5.49 1 USGS D 2 S O A USGS 403751073440204 GW 1981-06-18 1.52 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1981-06-18 0.41 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1981-06-18 5.48 1 USGS D 2 S O A USGS 403751073440204 GW 1981-09-15 1.69 NGVD29 1 USGS D 2 S O A USGS 403751073440204 GW 1981-09-15 0.58 NAVD88 1 USGS D 2 S O A USGS 403751073440204 GW 1981-09-15 5.31 1 USGS D 2 S O A USGS 403751073440204 GW 1981-12-22 14:45 UTC 1.13 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1981-12-22 14:45 UTC 0.02 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1981-12-22 14:45 UTC 5.87 1 USGS m 2 S O A USGS 403751073440204 GW 1982-03-17 17:35 UTC 1.51 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1982-03-17 17:35 UTC 0.40 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1982-03-17 17:35 UTC 5.49 1 USGS m 2 S O A USGS 403751073440204 GW 1982-06-22 16:15 UTC 1.83 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1982-06-22 16:15 UTC 0.72 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1982-06-22 16:15 UTC 5.17 1 USGS m 2 S O A USGS 403751073440204 GW 1982-09-22 15:28 UTC 1.80 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1982-09-22 15:28 UTC 0.69 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1982-09-22 15:28 UTC 5.20 1 USGS m 2 S O A USGS 403751073440204 GW 1983-01-19 14:08 UTC 1.76 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1983-01-19 14:08 UTC 0.65 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1983-01-19 14:08 UTC 5.24 1 USGS m 2 S O A USGS 403751073440204 GW 1983-03-28 14:20 UTC 3.15 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1983-03-28 14:20 UTC 2.04 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1983-03-28 14:20 UTC 3.85 1 USGS m 2 S O A USGS 403751073440204 GW 1983-06-28 14:47 UTC 1.89 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1983-06-28 14:47 UTC 0.78 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1983-06-28 14:47 UTC 5.11 1 USGS m 2 S O A USGS 403751073440204 GW 1983-09-20 14:38 UTC 1.98 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1983-09-20 14:38 UTC 0.87 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1983-09-20 14:38 UTC 5.02 1 USGS m 2 S O A USGS 403751073440204 GW 1984-01-04 13:51 UTC 2.96 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1984-01-04 13:51 UTC 1.85 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1984-01-04 13:51 UTC 4.04 1 USGS m 2 S O A USGS 403751073440204 GW 1984-03-21 15:54 UTC 4.08 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1984-03-21 15:54 UTC 2.97 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1984-03-21 15:54 UTC 2.92 1 USGS m 2 S O A USGS 403751073440204 GW 1984-06-12 15:22 UTC 3.68 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1984-06-12 15:22 UTC 2.57 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1984-06-12 15:22 UTC 3.32 1 USGS m 2 S O A USGS 403751073440204 GW 1984-09-12 15:26 UTC 1.94 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1984-09-12 15:26 UTC 0.83 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1984-09-12 15:26 UTC 5.06 1 USGS m 2 S O A USGS 403751073440204 GW 1984-12-24 14:16 UTC 1.88 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1984-12-24 14:16 UTC 0.77 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1984-12-24 14:16 UTC 5.12 1 USGS m 2 S O A USGS 403751073440204 GW 1985-03-25 14:22 UTC 1.75 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1985-03-25 14:22 UTC 0.64 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1985-03-25 14:22 UTC 5.25 1 USGS m 2 S O A USGS 403751073440204 GW 1985-05-05 15:13 UTC 2.76 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1985-05-05 15:13 UTC 1.65 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1985-05-05 15:13 UTC 4.24 1 USGS m 2 S O A USGS 403751073440204 GW 1985-07-05 16:09 UTC 2.16 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1985-07-05 16:09 UTC 1.05 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1985-07-05 16:09 UTC 4.84 1 USGS m 2 S O A USGS 403751073440204 GW 1985-09-30 14:50 UTC 2.50 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1985-09-30 14:50 UTC 1.39 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1985-09-30 14:50 UTC 4.50 1 USGS m 2 S O A USGS 403751073440204 GW 1985-12-16 15:00 UTC 2.36 NGVD29 4 USGS m 2 S O A USGS 403751073440204 GW 1985-12-16 15:00 UTC 1.25 NAVD88 4 USGS m 2 S O A USGS 403751073440204 GW 1985-12-16 15:00 UTC 4.64 4 USGS m 2 S O A USGS 403751073440204 GW 1986-03-28 13:40 UTC 1.88 NGVD29 4 USGS m 2 S O A USGS 403751073440204 GW 1986-03-28 13:40 UTC 0.77 NAVD88 4 USGS m 2 S O A USGS 403751073440204 GW 1986-03-28 13:40 UTC 5.12 4 USGS m 2 S O A USGS 403751073440204 GW 1986-06-24 13:45 UTC 1.93 NGVD29 1 USGS m 2 S O A USGS 403751073440204 GW 1986-06-24 13:45 UTC 0.82 NAVD88 1 USGS m 2 S O A USGS 403751073440204 GW 1986-06-24 13:45 UTC 5.07 1 USGS m 2 S O A USGS 403751073440204 GW 1986-10-08 16:00 UTC 1.91 NGVD29 4 USGS m 2 S O A USGS 403751073440204 GW 1986-10-08 16:00 UTC 0.80 NAVD88 4 USGS m 2 S O A USGS 403751073440204 GW 1986-10-08 16:00 UTC 5.09 4 USGS m 2 S O A USGS 403751073440204 GW 1987-01-05 17:01 UTC 5.20 NGVD29 1 USGS m 2 S S A USGS 403751073440204 GW 1987-01-05 17:01 UTC 4.09 NAVD88 1 USGS m 2 S S A USGS 403751073440204 GW 1987-01-05 17:01 UTC 1.80 1 USGS m 2 S S A USGS 403751073440204 GW 1987-04-02 15:00 UTC 2.64 NGVD29 1 USGS m 2 S S A USGS 403751073440204 GW 1987-04-02 15:00 UTC 1.53 NAVD88 1 USGS m 2 S S A USGS 403751073440204 GW 1987-04-02 15:00 UTC 4.36 1 USGS m 2 S S A