The Klamath Hydroelectric Settlement Agreement (KHSA) signed on February 18, 2010, supersedes the AIP. Interim Measure 15 of KHSA states that PacifiCorp shall fund long-term baseline water quality monitoring to support dam removal, nutrient removal, and permitting studies, and also will fund blue-green algae (BGA) and BGA toxin monitoring as necessary to protect public health. PacifiCorp will provide funding of $500,000 per year for this measure, and that monitoring will be performed by an entity or entities agreed upon by the parties to the KHSA and in consultation with the appropriate water quality agencies. The funding provided by PacifiCorp under Interim Measure 15 is not intended to replace existing funding for ongoing monitoring efforts by other parties and programs, but is intended to coordinate PacifiCorp's monitoring efforts with other ongoing monitoring efforts, and to involve the KHSA signatories (Parties) and the responsible water quality agencies in this coordination. Monitoring will be performed by the Parties within their areas of regulatory compliance or Tribal responsibility, or alternatively, by an entity or entities agreed upon by the Parties and in consultation with the appropriate water quality agencies.
- Provide data on cyanobacteria and related toxins in a timely manner to support public health decisions.
- Support the science in the dam removal framework.
- Improve the current understanding of seasonal, annual, and long-term variations in a wide range of water quality parameters for Klamath River from Link Dam to the estuary. A system wide approach is necessary because influences from upstream sources extend downstream.
- Form a long-term program that help capture the effects of other activities in the system potentially affecting water quality in the Klamath River, regulatory actions (e.g., Biological Opinions, adjudications, etc.), potential climate change impacts, fires, and land use activities, as well as other factors.
- Provide a long-term baseline data set of water quality conditions that can be readily extended to assess impacts of management actions and restoration processes, including:
- Clearly identifying current conditions for a wide range of hydrology, meteorology, and water quality conditions.
- Identifying and quantifying potential water quality changes, impacts, and implementation measures.
- Determining progress towards restoration of the river system and evaluation of possible mitigation measures to minimize long term impacts or promote/accelerate recovery
- Collect data under a consistent Quality Assurance (QA) framework
- Disseminate data in a timely fashion.
Klamath River Baseline Water Quality Sampling- KHSA Annual Reports *
* PacifiCorp has addressed inconsistencies with the data contained in the original reports and added errata to these reports in January 2018. Please note the updated data.
KHSA Monitoring Plans
KHSA Water Quality Monitoring Data
2009* (Updated 4/19/18)
2010* (Updated 8/14/18)
2011* (Updated 3/21/18)
2012* (Updated 1/10/19)
2013* (Updated 3/21/18)
2014* (Updated 10/4/17)
2015* (Updated 5/29/18)
2016* (Updated 1/10/19)
2019* (Updated 9/15/20)
2020* (Updated 8/26/21)
* PacifiCorp has addressed inconsistencies and revised data with some files. Please note that some data release dates are updated to reflect revised data. Please refer to PacifiCorp's Klamath water quality reports and data webpage as needed to confirm you are using the latest revised data.
KHSA Special Studies
Lab Cross Comparisons
QA Comparison Tables - 2010
KBMP Member Reports and Additional Data