#
# File created on 2024-05-12 01:50:49 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:
#  00600  - Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, milligrams per liter
#  00602  - Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, filtered, milligrams per liter
#  00605  - Organic nitrogen, water, unfiltered, milligrams per liter as nitrogen
#  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
#  00650  - Phosphate, water, unfiltered, milligrams per liter as PO4
#  00660  - Orthophosphate, water, filtered, milligrams per liter as PO4
#  00665  - Phosphorus, water, unfiltered, milligrams per liter as phosphorus
#  00666  - Phosphorus, water, filtered, milligrams per liter as phosphorus
#  00671  - Orthophosphate, water, filtered, milligrams per liter as phosphorus
#  49570  - Particulate nitrogen, suspended in water, milligrams per liter
#  62854  - Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, filtered, analytically determined, milligrams per liter
#  62855  - Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, analytically determined, milligrams per liter
#  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:
# AKST  - Alaska Standard Time
# AKDT  - Alaska Daylight Time
#
# Description of tm_datum_rlbty_cd:
# K  - Known
# T  - Transferred
#
# Description of coll_ent_cd and anl_ent_cd:
# USGS-WRD  - U.S. Geological Survey-Water Resources Discipline
# USGSNWQL  - USGS-National Water Quality Lab, Denver, CO
# USGSNWQL  - USGS-National Water Quality Lab, Denver, CO
#
# Description of medium_cd:
# WS  - Surface water
#
# Description of tu_id:
# https://www.itis.gov/
#
# Description of body_part_id:
#
# Description of remark_cd:
# <  - Less than
#
# Description of val_qual_tx:
# n  - below the reporting level but at or above the detection level
#
# Description of meth_cd:
# AKP01  - Nutrients, wu, WCA,persulfate,CF
# ALGOR  - Computation by NWIS algorithm
# CL020  - P, wf, FCC, persulfate CF color
# CL021  - P, wu, WCA, persulfate CF color
# CL063  - Nutrients, wf, FCC,persulfate,CF
# COMB7  - TPN, GF/F, combusion
# DZ001  - Nitrite, wf, DA, diazo
# PHM01  - Ortho-PO4, wf, DA phos/mol(NWQL)
# RED02  - NO3+NO2, wf, FCC,NaR, DA, LL
# SHC02  - Ammonia, wf, DA sal/hypo (NWQL)
#
# Description of dqi_cd:
# A  - Historical data
# R  - Reviewed and approved
#
# Description of rpt_lev_cd:
# DLDQC  - Detection limit by DQCALC
# LT-MDL  - Long term method detection level
#
# Data for the following sites are included:
#  USGS 15056500 CHILKAT R NR KLUKWAN AK
#
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	15056500	1960-05-31		1960-06-04		AKST	T		WS			00618		0.23			A				
USGS	15056500	1960-05-31		1960-06-04		AKST	T		WS			00650		0.060			A				
USGS	15056500	1960-05-31		1960-06-04		AKST	T		WS			71851		1.00			A				
USGS	15056500	1960-06-03	17:15			AKST	T		WS			00618		0.27			A				
USGS	15056500	1960-06-03	17:15			AKST	T		WS			00650		0.110			A				
USGS	15056500	1960-06-03	17:15			AKST	T		WS			71851		1.20			A				
USGS	15056500	1960-06-05		1960-06-15		AKST	T		WS			00618		0.11			A				
USGS	15056500	1960-06-05		1960-06-15		AKST	T		WS			00650		0.060			A				
USGS	15056500	1960-06-05		1960-06-15		AKST	T		WS			71851		0.500			A				
USGS	15056500	1960-06-16		1960-06-23		AKST	T		WS			00618		0.09			A				
USGS	15056500	1960-06-16		1960-06-23		AKST	T		WS			00650		0.060			A				
USGS	15056500	1960-06-16		1960-06-23		AKST	T		WS			71851		0.400			A				
USGS	15056500	1960-06-24		1960-06-30		AKST	T		WS			00618		0.05			A				
USGS	15056500	1960-06-24		1960-06-30		AKST	T		WS			00650		0.060			A				
USGS	15056500	1960-06-24		1960-06-30		AKST	T		WS			71851		0.200			A				
USGS	15056500	1960-07-08		1960-07-10		AKST	T		WS			00618		0.05			A				
USGS	15056500	1960-07-08		1960-07-10		AKST	T		WS			00650		0.000			A				
USGS	15056500	1960-07-08		1960-07-10		AKST	T		WS			71851		0.200			A				
USGS	15056500	1960-07-12		1960-07-20		AKST	T		WS			00618		0.02			A				
USGS	15056500	1960-07-12		1960-07-20		AKST	T		WS			00650		0.000			A				
USGS	15056500	1960-07-12		1960-07-20		AKST	T		WS			71851		0.100			A				
USGS	15056500	1960-07-21		1960-07-30		AKST	T		WS			00618		0.07			A				
USGS	15056500	1960-07-21		1960-07-30		AKST	T		WS			00650		0.000			A				
USGS	15056500	1960-07-21		1960-07-30		AKST	T		WS			71851		0.300			A				
USGS	15056500	1960-08-01		1960-08-10		AKST	T		WS			00618		0.05			A				
USGS	15056500	1960-08-01		1960-08-10		AKST	T		WS			00650		0.000			A				
USGS	15056500	1960-08-01		1960-08-10		AKST	T		WS			71851		0.200			A				
USGS	15056500	1960-08-11		1960-08-20		AKST	T		WS			00618		0.07			A				
USGS	15056500	1960-08-11		1960-08-20		AKST	T		WS			00650		0.000			A				
USGS	15056500	1960-08-11		1960-08-20		AKST	T		WS			71851		0.300			A				
USGS	15056500	1960-08-21		1960-08-23		AKST	T		WS			00618		0.07			A				
USGS	15056500	1960-08-21		1960-08-23		AKST	T		WS			00650		0.010			A				
USGS	15056500	1960-08-21		1960-08-23		AKST	T		WS			71851		0.300			A				
USGS	15056500	1961-07-05				AKST	T		WS			00618		0.02			A				
USGS	15056500	1961-07-05				AKST	T		WS			71851		0.100			A				
USGS	15056500	1981-08-15	14:15			AKDT	T	USGS-WRD	WS			00602		1.0			A				
USGS	15056500	1981-08-15	14:15			AKDT	T	USGS-WRD	WS			00607		0.68			A				
USGS	15056500	1981-08-15	14:15			AKDT	T	USGS-WRD	WS			00608		0.140			A				
USGS	15056500	1981-08-15	14:15			AKDT	T	USGS-WRD	WS			00623		0.82			A				
USGS	15056500	1981-08-15	14:15			AKDT	T	USGS-WRD	WS			00631		0.190			A				
USGS	15056500	1981-08-15	14:15			AKDT	T	USGS-WRD	WS			00666		0.030			A				
USGS	15056500	1981-08-15	14:15			AKDT	T	USGS-WRD	WS			71846		0.18			A				
USGS	15056500	1982-04-06	18:00			AKST	T	USGSNWQL	WS			00602		0.79			A				
USGS	15056500	1982-04-06	18:00			AKST	T	USGSNWQL	WS			00607		0.38			A				
USGS	15056500	1982-04-06	18:00			AKST	T	USGSNWQL	WS			00608		0.180			A				
USGS	15056500	1982-04-06	18:00			AKST	T	USGSNWQL	WS			00623		0.56			A				
USGS	15056500	1982-04-06	18:00			AKST	T	USGSNWQL	WS			00631		0.230			A				
USGS	15056500	1982-04-06	18:00			AKST	T	USGSNWQL	WS			00666		0.010			A				
USGS	15056500	1982-04-06	18:00			AKST	T	USGSNWQL	WS			71846		0.23			A				
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00600	<	0.08		ALGOR	R				
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00605	<	0.06		ALGOR	R				
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00607	<	0.01		ALGOR	R				
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00608	<	0.01		SHC02	R	0.01	DLDQC		USGSNWQL
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00613	<	0.001		DZ001	R	0.001	DLDQC		USGSNWQL
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00618		0.040		ALGOR	R				
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00631		0.04		RED02	R	0.01	DLDQC		USGSNWQL
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00660	<	0.012		ALGOR	R				
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00665		0.142		CL021	R	0.004	DLDQC		USGSNWQL
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00666	<	0.003		CL020	R	0.003	DLDQC		USGSNWQL
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			00671	<	0.004		PHM01	R	0.004	DLDQC		USGSNWQL
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			49570		0.031	n	COMB7	R	0.03	LT-MDL		USGSNWQL
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			62854	<	0.05		CL063	R	0.05	DLDQC		USGSNWQL
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			62855		0.10		AKP01	R	0.05	DLDQC		USGSNWQL
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			71846	<	0.013		ALGOR	R				
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			71851		0.176		ALGOR	R				
USGS	15056500	2017-08-02	10:45			AKDT	K	USGS-WRD	WS			71856	<	0.003		ALGOR	R