# # File created on 2024-12-03 07:00:49 EST # # U.S. Geological Survey # # This file contains selected water-quality data for stations in the National Water # Information System water-quality database. Explanation of codes found in this file are # followed by the retrieved data. # # The data you have secured from the USGS NWISWeb database may include data that have # not received Director's approval and as such are provisional and subject to revision. # The 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 authorized or # unauthorized use. # # To view additional data-quality attributes, output the results using these options: # one result per row, expanded attributes. # # agency_cd - Agency Code # site_no - USGS site number # sample_dt - Begin date # sample_tm - Begin time # sample_end_dt - End date # sample_end_tm - End time # sample_start_time_datum_cd - Time datum # tm_datum_rlbty_cd - Time datum reliability code # coll_ent_cd - Agency Collecting Sample Code # medium_cd - Sample Medium Code # tu_id - Taxonomic unit code # body_part_id - Body part code # parm_cd - Parameter code # remark_cd - Remark code # result_va - Parameter value # val_qual_tx - Result value qualifier code # meth_cd - Method code # dqi_cd - Data-quality indicator code # rpt_lev_va - Reporting level # rpt_lev_cd - Reporting level type # lab_std_va - Lab standard deviation # anl_ent_cd - Analyzing entity code # # The following parameters are included: # 00602 - Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, filtered, milligrams per liter # 00607 - Organic nitrogen, water, filtered, milligrams per liter as nitrogen # 00608 - Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as nitrogen # 00613 - Nitrite, water, filtered, milligrams per liter as nitrogen # 00618 - Nitrate, water, filtered, milligrams per liter as nitrogen # 00623 - Ammonia plus organic nitrogen, water, filtered, milligrams per liter as nitrogen # 00631 - Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen # 00660 - Orthophosphate, water, filtered, milligrams per liter as PO4 # 00666 - Phosphorus, water, filtered, milligrams per liter as phosphorus # 00671 - Orthophosphate, water, filtered, milligrams per liter as phosphorus # 71846 - Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as NH4 # 71851 - Nitrate, water, filtered, milligrams per liter as nitrate # 71856 - Nitrite, water, filtered, milligrams per liter as nitrite # # Description of sample_start_time_datum_cd: # EDT - Eastern Daylight Time # # Description of tm_datum_rlbty_cd: # T - Transferred # # Description of coll_ent_cd and anl_ent_cd: # USGS-WRD - U.S. Geological Survey-Water Resources Discipline # # Description of medium_cd: # WG - Groundwater # # Description of tu_id: # https://www.itis.gov/ # # Description of body_part_id: # # Description of remark_cd: # < - Less than # # Description of val_qual_tx: # # Description of meth_cd: # ALGOR - Computation by NWIS algorithm # CL035 - Ammonia, wf, ASF salicylate # CL040 - Nitrite, wf, ASF diazotization # CL045 - NO2+NO3, wf, Cd reduction ASF # CL054 - Ortho-PO4, wf, ASF phosphomolybd # CL061 - Phosphorus, wf,microkjeldahl ASF # # Description of dqi_cd: # A - Historical data # # Description of rpt_lev_cd: # # Data for the following sites are included: # USGS 363947076112601 LU-002 nr Chesapeake, Va # agency_cd site_no sample_dt sample_tm sample_end_dt sample_end_tm sample_start_time_datum_cd tm_datum_rlbty_cd coll_ent_cd medium_cd tu_id body_part_id parm_cd remark_cd result_va val_qual_tx meth_cd dqi_cd rpt_lev_va rpt_lev_cd lab_std_va anl_ent_cd 5s 15s 10d 5d 10d 5d 3s 1s 8s 3s 11s 11s 5s 1s 12s 5s 5s 1s 12s 6s 11s 8s USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 00602 < 0.25 ALGOR A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 00607 < 0.16 ALGOR A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 00608 0.040 CL035 A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 00613 < 0.010 CL040 A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 00618 < 0.050 ALGOR A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 00623 < 0.20 CL061 A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 00631 < 0.050 CL045 A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 00660 < 0.031 ALGOR A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 00666 < 0.01 CL061 A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 00671 < 0.01 CL054 A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 71846 0.052 ALGOR A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 71851 < 0.221 ALGOR A USGS 363947076112601 1994-05-25 08:30 EDT T USGS-WRD WG 71856 < 0.033 ALGOR A