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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-000185

Makaha Beach (21HI-000185) site data in the Water Quality Portal

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

This beach program site-ocean site, maintained by the Hawaii Department of Health Clean Water Branch (identifier 21HI), has the name "Makaha Beach" and has the identifier 21HI-000185. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)20060000.

This site is located in Honolulu County County, Hawaii at 21.4783360000 degrees latitude and -158.2224690000 degrees longitude using the datum NAD83. 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-000185" 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 1989 - 2009
Inorganics, Major, Non-metals 2008 - 2009
Microbiological 1974 - 2024
Not Assigned 1989 - 1996
Nutrient 1989 - 2009
Physical 1989 - 2024
*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-000185
MonitoringLocationName Makaha Beach
MonitoringLocationTypeName BEACH Program Site-Ocean
HUCEightDigitCode 20060000
LatitudeMeasure 21.4783360000
LongitudeMeasure -158.2224690000
SourceMapScaleNumeric 0
HorizontalCollectionMethodName GPS-Unspecified
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 15
CountyCode 003
ProviderName STORET