St. Croix International Waterway Commission

Map and Visualize

The St. Croix watershed faces unique environmental and socioeconomic challenges as well as an international border.
In the past there have been sewage and industry spills within the watershed; Water quality throughout the watershed was highly deteriorated from heavy industry, municipal sewage, and other contaminants. Since the EPA's clean water act, and other effective government regulations, water quality has improved tremendously. In 2017, the Saint Croix International Waterway Commission (SCIWC) began to effectively monitor water quality throughout the St. Croix watershed. Regular water quality monitoring will allow for a timely detection of contaminants, measurable comparisons of historical to current water quality, and will contribute to longstanding data records.

Version 3.2.0
Data Steward Email
Data Collection Organization St. Croix International Waterway Commission
Data Upload Organization St. Croix International Waterway Commission
Progress Code onGoing
Maintenance Frequency Code annually
Topic Category Code inlandWaters
Keywords St. Croix River, New Brunswick, Maine, Skutik, Water Quality
Spatial Extent -67.804° 45.079°, -67.069° 45.867° (W S, E N)
Temporal Extent 1998-05-20 to 2023-10-26
Date Published
Alternate Formats FGP-HNAP ISO:19115-2 (XML) , W3C DCAT (XML) , W3C DCAT (JSON-LD)


St. Croix International Waterway Commission. 2023-11-10. "St. Croix International Waterway Commission" (dataset). 3.2.0. DataStream.

Funding Sources

New Brunswick's Environmental Trust Fund

Data Collection Information

YSI probes (Models: PRO ODO and Pro Plus) were used to collect conductivity, DO, pH, and temperature data from the St. Croix Watershed. Water samples were also collected from each site and sent away for surface water analysis, E. coli, and total dissolved solids.

Attribution Licence (ODC-By) v1.0

You are free to share, copy, distribute, use, modify, transform, build upon, and produce works from the data as long as you attribute any public use of the data, or works produced from the data, in the manner specified in the licence. For any use or redistribution of the data, or works produced from it, you must make clear to others the licence of the data and keep intact any notices on the original data.

API Access

curl -G --data-urlencode "\\$filter=DOI eq '10.25976/cxjd-ez84'" -H "x-api-key: PRIVATE-API-KEY"



Added data collected and analyzed in 2023 from our Environmental Trust Fund project.

Schema v2.18.1
Digest SHA3-256:f51aeced51e29d944a3232038d8af13275f269c2c0c46eab1ac68ae15b5aa23c
File size 1.18 MB


Added 2022 Environmental Trust Fund WQ Monitoring observations.

Schema v2.12.0
Digest SHA3-256:1561579ab0493c6fb2a9504e4ac5bdf97d42e1286bd384e2d211ba249dd237e0
File size 1.12 MB


Update to metadata


DataStream system update: set citation to recommended default.


Added new observations from 2020

Schema v2.0.4
Digest SHA2-256:34ea9d5a4bfe96056ecdf2c2171cee16efd4939e4fa07a588ea22b9a3448d85d
File size 4.26 MB


Added observations for the 2020 field season - RG

Schema v2.0.4
Digest SHA2-256:a0108fb625384366a598dcfe236d397b149a072af601b4879a205193d9d1ab37
File size 4 MB


Initial Submission

Schema v1.7.0
Blockchain Transaction 0xc43988b291f855144846621d2369643ac3d00da09580d8bfd7f4c9bd5c0b2433
Blockchain Signed
Blockchain Verified
Digest SHA2-256:477f901cf0c3e62b820b6d0815be335d5d27fd0e529e01b5a2470bac009d72be
File size 8.26 MB