#
# File created on 2024-05-18 01:13:02 EDT
#
# 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.  Additional precautions are at:
# https://help.waterdata.usgs.gov/tutorials/water-quality-data/help-using-the-water-quality-data-retrieval-system#Data_retrievals_precautions
#
#  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:
#  39516  - PCBs, water, unfiltered, recoverable, micrograms per liter
#  39519  - PCBs, bed sediment, recoverable, dry weight, micrograms per kilogram
#  49354  - PCBs, biota, whole organism, recoverable, wet weight, micrograms per kilogram
#
# Description of sample_start_time_datum_cd:
# EST  - Eastern Standard Time
# 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:
# BA  - Animal tissue
# WS  - Surface water
#
# Description of tu_id:
# https://www.itis.gov/
#
# Description of body_part_id:
# 59  - Organism, whole
#
# Description of remark_cd:
# <  - Less than
# U  - Analyzed for but not detected
#
# Description of val_qual_tx:
#
# Description of meth_cd:
# GCE18  - Pest, oc, tis, lab, GC-ECD
#
# Description of dqi_cd:
# A  - Historical data
#
# Description of rpt_lev_cd:
#
# Data for the following sites are included:
#  USGS 02049500 BLACKWATER RIVER NEAR FRANKLIN, 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	02049500	1977-11-08	10:15			EST	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1977-11-08	10:15			EST	T	USGS-WRD	WS			39519	U				A				
USGS	02049500	1977-11-08	11:15			EST	T		WS			39516	U				A				
USGS	02049500	1977-11-08	11:15			EST	T		WS			39519	U				A				
USGS	02049500	1978-02-14	10:30			EST	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1978-02-14	11:30			EST	T		WS			39516	U				A				
USGS	02049500	1978-05-29	12:00			EDT	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1978-05-29	12:00			EDT	T	USGS-WRD	WS			39519	U				A				
USGS	02049500	1978-08-16	10:00			EDT	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1978-11-29	10:30			EST	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1978-11-29	11:30			EST	T		WS			39516	U				A				
USGS	02049500	1979-02-28	10:00			EST	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1979-05-22	10:00			EDT	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1979-05-22	10:00			EDT	T	USGS-WRD	WS			39519	U				A				
USGS	02049500	1979-08-23	10:30			EDT	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1979-11-06	10:00			EST	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1979-11-06	10:00			EST	T	USGS-WRD	WS			39519	U				A				
USGS	02049500	1980-02-12	10:00			EST	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1980-05-06	14:15			EDT	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1980-08-13	12:00			EDT	T	USGS-WRD	WS			39516	U				A				
USGS	02049500	1981-11-04	09:15			EST	T	USGS-WRD	WS			39519	<	1			A				
USGS	02049500	1982-03-16	09:15			EST	T	USGS-WRD	WS			39516	<	0.1			A				
USGS	02049500	1982-05-18	10:30			EDT	T	USGS-WRD	WS			39516	<	0.1			A				
USGS	02049500	1982-05-18	10:30			EDT	T	USGS-WRD	WS			39519	<	1			A				
USGS	02049500	1993-11-05	12:15			EST	T	USGS-WRD	BA	168131	59	49354	<	50		GCE18	A