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New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here.

This legacy user interface will continue to function for several weeks. However, this user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  21HI >  21HI-000631

HULOPOE BAY (21HI-000631) site data in the Water Quality Portal

Data Provider: STORET (Learn more about Water Quality Portal Data Providers)

This ocean site, maintained by the Hawaii Department of Health Clean Water Branch (identifier 21HI), has the name "HULOPOE BAY" and has the identifier 21HI-000631.

This site is located in Maui County County, Hawaii at 20.7500000000 degrees latitude and -156.8405556000 degrees longitude using the datum UNKWN. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "21HI-000631" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application
Characteristic Group Date Range*
Biological, Algae, Phytoplankton, Photosynthetic Pigments 1980 - 1997
Microbiological 1989 - 1997
Not Assigned 1976 - 1997
Nutrient 1976 - 1997
Organics, Other 1980 - 1982
Physical 1976 - 1997
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier 21HI
OrganizationFormalName Hawaii Department of Health Clean Water Branch
MonitoringLocationIdentifier 21HI-000631
MonitoringLocationName HULOPOE BAY
MonitoringLocationTypeName Ocean
MonitoringLocationDescriptionText MIGRATED FROM LEGACY STORET AGENCY CODE (21HI ) ON 07-DEC-99 MAJOR BASIN NAME: LANAI BASIN CODE: MINOR BASIN NAME: HULOPOE BAY
LatitudeMeasure 20.7500000000
LongitudeMeasure -156.8405556000
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName UNKWN
CountryCode US
StateCode 15
CountyCode 009
ProviderName STORET