Somenos Lake Watershed Water Quality Monitoring

Map and Visualize

The Somenos Marsh Wildlife Society collects water quality data for Somenos Lake and for streams that flow into and out of the lake. Somenos Lake is eutrophic, with weak stratification in the summer. Populations of trout and salmonids that used to survive in the lake in summer conditions are seldom observed at present. The Society hopes to locate sources of nutrient input to the lake and to recommend remedial actions.

Version 3.0.0
Data Steward Email
Data Collection Organization Somenos Marsh Wildlife Society
Data Upload Organization Somenos Marsh Wildlife Society
Progress Code onGoing
Maintenance Frequency Code quarterly
Topic Category Code inlandWaters
Keywords Water quality, phosphorus, orthophosphate, dissolved oxygen, ammonia, pH
Spatial Extent -123.718° 48.785°, -123.663° 48.83° (W S, E N)
Vertical Extent -6 m to 0 m
Temporal Extent 2014-06-30 to 2024-02-05
Date Published
Alternate Formats FGP-HNAP ISO:19115-2 (XML) , W3C DCAT (XML) , W3C DCAT (JSON-LD)


Somenos Marsh Wildlife Society. 2024-04-02. "Somenos Lake Watershed Water Quality Monitoring" (dataset). 3.0.0. DataStream.

Data Collection Information

Data is collected with a YSI Quattro Pro hand held instrument. Grab samples are lab analyzed several times per year.

Public Domain Dedication and Licence (ODC-PDDL) v1.0

This licence places the data in the public domain (waiving all rights). The PDDL imposes no restrictions on your use of the PDDL licenced data. You are free to share, copy, distribute, use, modify, transform, build upon, and produce works from the data.

API Access

curl -G --data-urlencode "\\$filter=DOI eq '10.25976/yclh-nh97'" -H "x-api-key: PRIVATE-API-KEY"



Added watershed stream data.

Schema v2.19.1
Digest SHA3-256:5cd793885c460cc1fa9cb28a80814da24e47b219308bd19b8ecb0712620bd72f
File size 5.06 MB


Update to metadata


initial submission

Schema v2.18.4
Digest SHA3-256:c5eef602ffa05ddcae914986e6886f780c4d71383d1f33951ac10bcc4da076ba
File size 3.17 MB