addWaterYear            add a water year column
calcWaterYear           Extract WY from a date
checkWQPdates           Date Check for Water Quality Portal
check_waterdata_sample_params
                        Check values from codeservice
constructNWISURL        Construct NWIS url for data retrieval
constructWQPURL         Construct WQP url for data retrieval
countyCd                US County Code Lookup Table
countyCdLookup          US county code look up
create_NWIS_bib         Create NWIS data citation
create_WQP_bib          Create WQP data citation
findNLDI                R Client for the Network Linked Data Index
getQuerySummary         getting header information from a WQP query
getWebServiceData       Function to return data from web services
get_nldi_sources        Get current NLDI offerings
get_ogc_params          Get parameter descriptions
importNGWMN             Function to return data from the National
                        Ground Water Monitoring Network waterML2 format
importRDB1              Function to return data from the NWIS RDB 1.0
                        format
importWQP               Basic Water Quality Portal Data parser
importWaterML1          Function to return data from the NWISWeb
                        WaterML1.1 service
importWaterML2          Parse the WaterML2 timeseries portion of a
                        waterML2 file
is_dataRetrieval_user   Is this a dataRetrieval user
parameterCdFile         List of USGS parameter codes
parse_WQP               Convert WQP columns to correct types
pcode_to_name           Parameter code to characteristic name
readNGWMNdata           Import data from the National Groundwater
                        Monitoring Network.
readNGWMNlevels         Retrieve groundwater levels from the National
                        Ground Water Monitoring Network.
readNGWMNsites          Retrieve site data from the National Ground
                        Water Monitoring Network.
readNWISdata            General Data Import from NWIS
readNWISdv              Daily Value USGS NWIS Data Retrieval
readNWISpCode           USGS Parameter Data Retrieval
readNWISpeak            Peak flow data from USGS (NWIS)
readNWISrating          Rating table for an active USGS streamgage
                        retrieval
readNWISsite            USGS Site File Data Retrieval
readNWISstat            Site statistics retrieval from USGS (NWIS)
readNWISuse             Water use data retrieval from USGS (NWIS)
readNWISuv              Instantaneous value data retrieval from USGS
                        (NWIS)
readWQPdata             General Data Import from Water Quality Portal
readWQPqw               Raw Data Import for Water Quality Portal
readWQPsummary          Summary of Data Available from Water Quality
                        Portal
read_waterdata          Generalized USGS Water Data API retrieval
                        function
read_waterdata_channel
                        Get USGS Channel Measurements
read_waterdata_combined_meta
                        Get USGS Monitoring Location Metadata
read_waterdata_continuous
                        Get Continuous USGS Water Data
read_waterdata_daily    Get USGS Daily Data
read_waterdata_field_measurements
                        Get USGS Field Measurement Water Data
read_waterdata_field_meta
                        Get USGS Field Measurement Metadata
read_waterdata_latest_continuous
                        Get Latest Continuous USGS Water Data
read_waterdata_latest_daily
                        Get Latest USGS Daily Data
read_waterdata_metadata
                        Generalized USGS Water Meta Data API retrieval
                        function
read_waterdata_monitoring_location
                        Get USGS Monitoring Location Data
read_waterdata_parameter_codes
                        Get USGS Parameter Code Information
read_waterdata_peaks    Get USGS Peak Data
read_waterdata_ratings
                        Get USGS Rating Curve Data
read_waterdata_samples
                        USGS Samples Data
read_waterdata_stats_por
                        Get USGS daily data statistics
read_waterdata_ts_meta
                        Get USGS Time Series Metadata
renameNWISColumns       renameColumns
setAccess               Set data endpoint
stateCd                 US State Code Lookup Table
stateCdLookup           State code look up
summarize_waterdata_samples
                        USGS Samples Summary Data
whatNWISdata            USGS data availability
whatNWISsites           Site Data Import from NWIS
whatWQPdata             Data Available from Water Quality Portal
whatWQPsamples          Site Data Import from Water Quality Portal
wqp_check_status        Get WQP service metadata
zeroPad                 Pad string with leading zeros
