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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 user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  11NPSWRD_WQX >  11NPSWRD_WQX-AMME_GS1_NBS1

Natural Bridge Spring No. 1 (11NPSWRD_WQX-AMME_GS1_NBS1) site data in the Water Quality Portal

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

This spring site, maintained by the National Park Service Water Resources Division (identifier 11NPSWRD_WQX), has the name "Natural Bridge Spring No. 1" and has the identifier 11NPSWRD_WQX-AMME_GS1_NBS1. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)22020000.

This site is located in Saipan Municipality County, Northern Mariana Islands at 15.1916666700 degrees latitude and 145.7597222220 degrees longitude using the datum GUAM. No horizontal location accuracy metadata is available. This site is at an elevation of 425 ft No vertical location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "11NPSWRD_WQX-AMME_GS1_NBS1" 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*
Inorganics, Major, Non-metals 1944 - 1952
Physical 1944 - 1952
*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 11NPSWRD_WQX
OrganizationFormalName National Park Service Water Resources Division
MonitoringLocationIdentifier 11NPSWRD_WQX-AMME_GS1_NBS1
MonitoringLocationName Natural Bridge Spring No. 1
MonitoringLocationTypeName Spring
MonitoringLocationDescriptionText This station is at Natural Bridge Spring No. 1. The spring is approximately 2,000 feet south of Denni Spring, south of the road to Denni Spring. The aquifer is described as limestone on impermeable bed. The spring is also known as Bobo As Teo No. 1.
HUCEightDigitCode 22020000
LatitudeMeasure 15.1916666700
LongitudeMeasure 145.7597222220
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName GUAM
VerticalMeasure/MeasureValue 425
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName Topographic Map Interpolation
VerticalCoordinateReferenceSystemDatumName UNKWN
CountryCode US
StateCode 69
CountyCode 110
ProviderName STORET