readNWISpCode: USGS Parameter Data Retrieval

In dataRetrieval: Retrieval Functions for USGS and EPA Hydrology and Water Quality Data

USGS Parameter Data Retrieval

Description

Imports data from NWIS about measured parameter based on user-supplied parameter code or codes. This function gets the data from here: https://nwis.waterdata.usgs.gov/nwis/pmcodes

Usage

readNWISpCode(parameterCd)

Arguments

parameterCd

character of USGS parameter codes (or multiple parameter codes). These are 5 digit number codes. To get a complete list of all current parameter codes in the USGS, use "all" as the input.

Value

parameterData data frame with the following information:

Name	Type	Description
parameter_cd	character	5-digit USGS parameter code
parameter_group_nm	character	USGS parameter group name
parameter_nm	character	USGS parameter name
casrn	character	Chemical Abstracts Service (CAS) Registry Number
srsname	character	Substance Registry Services Name
parameter_units	character	Parameter units

See Also

importRDB1()

dataRetrieval documentation built on Aug. 8, 2025, 7:03 p.m.