Thornton Creek Water Quality Monitoring Program

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Thornton Creek Enhancement Society is a non-profit organization dedicated to sustaining and building salmon stocks in Barkley Sound, as well as facilitating educational and research opportunities. The objective of the Thornton Creek Water Quality Monitoring Program is to create quality, long-term datasets that can be used for research and stewardship by building partnerships with other local organizations and indigenous governments. The rivers that we enhance and/or monitor support critical salmon populations and are susceptible to logging, pollution, mining and human impacts. This makes gathering baseline data on the quality of these watersheds very important. The program periodically collects physio-chemical parameters at 8 sites throughout 7 Rivers that feed into Barkley Sound.

This program is made possible thanks to the support in part from the Department of Fisheries and Ocean and the Pacific Salmon Foundation, as well as the partnership with Toquaht Nation, Ucluelet First Nation and Redd Fish Restoration. This project is funded by donations to the Thornton Creek Enhancement Society.

Version 1.0.0
Data Steward Email
Data Collection Organization Thornton Creek Enhancement Society
Data Upload Organization Thornton Creek Enhancement Society
Progress Code onGoing
Maintenance Frequency Code annually
Topic Category Code inlandWaters
Keywords Barkley Sound, Ucluelet
Spatial Extent -125.571° 48.953°, -125.342° 49.114° (W S, E N)
Temporal Extent 2022-03-11 to 2022-12-13
Date Published
Alternate Formats FGP-HNAP ISO:19115-2 (XML) , W3C DCAT (XML) , W3C DCAT (JSON-LD)


Thornton Creek Enhancement Society. 2022-12-21. "Thornton Creek Water Quality Monitoring Program" (dataset). 1.0.0. DataStream.

Funding Sources

This project is funded by donations to the Thornton Creek Enhancement Society.

Data Collection Information

Data is collected at 8 sites every 28 days, year-round. A YSI probe 2030 (16E100523) is used to collect water temperature, dissolved oxygen, dissolved oxygen saturation, and conductivity. A thermometer is used to collect air temperatures and a LaMotte wide-range pH kit is used to determine pH. Field observations, such as weather and physical changes are recorded at every site visit.

Data Collection Processing

Protocols have been put into place to ensure data collected is consistent and of high quality. Site descriptions, pictures, field markers and GPS coordinates that have been confirmed using Google Earth are provided for each monitoring site and used for site relocation. To ensure instruments are functioning properly, conductivity and dissolved oxygen calibrations are performed on the YSI probe 2030 (16E100523) 24 hours before every site visit and are kept on record. To help mitigate human errors, field sheets are double checked by sampler for completeness, clarity, and data entry errors immediately after data is recorded. Parameters with unusually high differences are flagged.

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.

Data Disclaimer


API Access

curl -G --data-urlencode "\\$filter=DOI eq '10.25976/3q6e-m714'" -H "x-api-key: PRIVATE-API-KEY"



initial submission

Schema v2.12.0
Digest SHA3-256:c9753c32e00e81407c6f276ac5c73ec52ceefff74a79084021efc6f7ff450866
File size 133.4 KB