uid=AND,o=lter,dc=ecoinformatics,dc=org all public read CF002 Sherri L. Johnson

US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way Corvallis OR 97331 USA

541-758-7771 sherri.johnson@oregonstate.edu https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson 0000-0002-4223-3465 Donald L. Henshaw

Pacific Northwest Research Station; Corvallis Forestry Sciences Lab; 3200 SW Jefferson Way Corvallis Oregon 97331

hja_admin@lists.oregonstate.edu 0000-0001-5952-4528 Suzanne M. Remillard

Office: FSL 354;; Forest Science Department;; Oregon State University Corvallis OR 97331 USA

(541) 758-8767 suzanne.remillard@oregonstate.edu 0000-0002-0365-8866 Richard L. Fredriksen Craig Creel

USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way Corvallis OR 97331 USA

(541) 750-7326 (541) 822-6301 cdcreel@comcast.net Former Investigator Greg Downing

Forestry Sciences Lab;3200 SW Jefferson Way Corvallis OR 97333 USA

(541) 750-7283 (541) 822-6301 gregdowning242@gmail.com greg.downing@oregonstate.edu Former Investigator Richard L. Fredriksen Creator Stanley V. Gregory

Oregon State University;Dept. of Fisheries and Wildlife;Nash Hall 104 Corvallis OR 97331 USA

(541) 737-1951 stanley.gregory@oregonstate.edu http://oregonstate.edu/dept/pnw-erc/personnel/gregory.htm Other Researcher Donald L. Henshaw

Pacific Northwest Research Station; Corvallis Forestry Sciences Lab; 3200 SW Jefferson Way Corvallis Oregon 97331

hja_admin@lists.oregonstate.edu 0000-0001-5952-4528 Abstractor Donald L. Henshaw

Pacific Northwest Research Station; Corvallis Forestry Sciences Lab; 3200 SW Jefferson Way Corvallis Oregon 97331

hja_admin@lists.oregonstate.edu 0000-0001-5952-4528 Creator Sherri L. Johnson

US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way Corvallis OR 97331 USA

541-758-7771 sherri.johnson@oregonstate.edu https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson 0000-0002-4223-3465 Principal Investigator Sherri L. Johnson

US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way Corvallis OR 97331 USA

541-758-7771 sherri.johnson@oregonstate.edu https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson 0000-0002-4223-3465 Creator Julia A. Jones

Oregon State University;Department of Geosciences; Wilkinson Hall 104 Corvallis OR 97331-5506 USA

(541) 737-1224 Julia.Jones@oregonstate.edu geojulia@comcast.net http://ceoas.oregonstate.edu/profile/jones/ 0000-0001-9429-8925 Other Researcher Kate Lajtha

Oregon State University;Dept. of Botany and Plant Pathology;2059 Cordley Hall Corvallis OR 97331 USA

(541) 737-5674 lajthak@science.oregonstate.edu http://cropandsoil.oregonstate.edu/content/kate-lajtha 0000-0002-6430-4818 Other Researcher Alfred B. Levno

Corvallis OR 97331 USA

ablevno@comcast.net allevno@hotmail.com Former Investigator C. Wayne Martin wmartin_03223@yahoo.com Former Investigator W. Arthur McKee

Flathead Lake Biological Station ;The University of Montana ;300 Bio Station Lane Polson MT 59860-9659 USA

406-982-3301 art.mckee@flbs.umt.edu Former Investigator Frederick J. Swanson

USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way Corvallis OR 97331 USA

(541) 750-7355 fred.swanson@oregonstate.edu fjswanson541@gmail.com 0000-0001-9690-2428 Former Investigator Kristin L. Vanderbilt

USA

krvander@fiu.edu 0000-0003-1439-2204 Former Investigator Suzanne M. Remillard

Office: FSL 354;; Forest Science Department;; Oregon State University Corvallis OR 97331 USA

(541) 758-8767 suzanne.remillard@oregonstate.edu 0000-0002-0365-8866 Abstractor Suzanne M. Remillard

Office: FSL 354;; Forest Science Department;; Oregon State University Corvallis OR 97331 USA

(541) 758-8767 suzanne.remillard@oregonstate.edu 0000-0002-0365-8866 Creator Alba Argerich

School of Natural Resources; 303K Anheuser-Busch Natural Resources Building; University of Missouri Columbia MO 65211

argericha@missouri.edu alba.argerich@gmail.com https://scholar.google.com/citations?user=vWnt2CoAAAAJ&hl=ca 0000-0001-6430-0449 Other Researcher Benjamin E. Nash benjamin.nash@usda.gov Method Contact 2026-02-05 Stream chemistry sampling and analysis was initiated at the H.J. Andrews Experimental Forest in 1968 in two small watersheds (Watersheds 9,10). Sampling has expanded as additional paired watershed studies (Watersheds 1, 2, 6, 7, 8) and monitoring (Mack, Lookout Cr) were initiated over time. Water samples are collected proportionally to streamflow as a function of stage height and composited at each stream gauging site. Composite sample periods are generally three weeks and 3 one-week samples are commonly composited in the lab before analysis. Water samples are analyzed at the Cooperative Chemical Analytical Lab (CCAL) (http://www.ccal.oregonstate.edu/ ). Concentrations of analytes include dissolved and particulate nitrogen, phosphorus, carbon, as well as pH, conductivity, suspended sediment, and full suite of cations and anions. Annual mean concentrations are calculated by weighting 3-week periods by streamflow. Fluxes are calculated using concentrations and flow. Monthly concentrations and fluxes were interpolated from the 3-week sampling data. The original objective was to examine the nutrient budgets for small watersheds and to evaluate changes in average concentrations and fluxes following timber harvest in comparison with unharvested reference watersheds. This study is conducted in conjunction with Andrew's precipitation chemistry (CP002) and the U.S. National Atmospheric Deposition Program (NADP). hydrology water chemistry suspended solids discharge streamflow timber harvest inorganic nutrients nutrients dissolved nutrients water LTER controlled vocabulary Long-Term Ecological Research (LTER) Andrews Experimental Forest site thesaurus inorganic nutrients LTER core research areas Description of the Sigma sampler and proportional water sampling system (2003-Present) http://andrewsforest.oregonstate.edu/data/studies/cf002/Sigma_sampler.pdf Detailed 1988 memo describing changes in the stream and precipitation sampling program http://andrewsforest.oregonstate.edu/data/studies/cf002/memo_H2Osampling_1988.pdf A table showing the history of laboratory instrumentation for analytical measurements http://andrewsforest.oregonstate.edu/data/studies/cf002/CCAL_instrumentation_historic1.pdf Silica data quality, 1969-1983 http://andrewsforest.oregonstate.edu/data/studies/cf002/Historic_HJA_Silica_Data_Quality.pdf StreamChem DB http://web.fsl.orst.edu/streamchem/ Cooperative Chemical Analytical Laboratory (CCAL)Related PublicationsSollins, P.; Grier, C. C.; McCorison, F. M.; Cromack, K. Jr.; Fogel, R.; Fredriksen, R. L. 1980. The internal element cycles of an old-growth Douglas-fir ecosystem in western Oregon. Ecological Monographs. 50(3): 261-285.Fredriksen, R. L. 1969. A battery powered proportional stream water sampler. Water Resources Research. 5(6): 1410-1413.Fredriksen, R. L. 1972. Nutrient budget of a Douglas-fir forest on an experimental watershed in western Oregon. In: Research on coniferous forest ecosystems: Proceedings of a symposium; 1972 March 23-24; Bellingham, WA. [Place of publication unknown]: [Publisher unknown]: 115-131.Grier, C. C.; Cole, D. W.; Dyrness, C. T.; Fredriksen, R. L. 1974. Nutrient cycling in 37- and 450-year-old Douglas-fir ecosystems. In: Waring, R. H.; Edmonds, R. L., eds. Integrated research in the coniferous forest biome. Bulletin 5. Seattle, WA: Coniferous Forest Biome: 21-34.Martin, C. Wayne; Harr, R. Dennis. 1988. Precipitation and streamwater chemistry from undisturbed watersheds in the Cascade Mountains of Oregon. Water, Air, and Soil Pollution. 42: 203-219.Martin, C. Wayne; Harr, R. Dennis. 1989. Logging of mature Douglas-fir in western Oregon has little effect on nutrient output budgets. Canadian Journal of Forest Research. 19: 35-43.Triska, Frank J.; Sedell, James R.; Cromack, Kermit Jr. 1984. Nitrogen budget for a small coniferous forest stream. Ecological Monographs. 54(1): 119-140.Vanderbilt, Kristin L. 2000. Patterns of nitrogen fluxes in watersheds of the H.J. Andrews Experimental Forest, OR. Corvallis, OR: Oregon State University. 110 p. Ph.D. dissertation.Vanderbilt, Kristin L.; Lajtha, Kate; Swanson, Frederick J. 2003. Biogeochemistry of unpolluted forested watersheds in the Oregon Cascades: temporal patterns of precipitation and stream nitrogen fluxes. Biogeochemistry. 62: 87-117.Argerich, A.; Johnson, S.L.; Sebestyen, S.D.; Rhoades, C.C.; Greathouse, E.; Knoepp, J.D.; Adams, M.B.; Likens, G.E.; Campbell, J.L.; McDowell, W.H.; Scatena, F.N.; Ice, G.G. 2013. Trends in stream nitrogen concentrations for forested reference catchments across the USA. Environmental Research Letters. 8: 8pp.Corson-Rikert, Hayley A. 2014. Carbon Dynamics in the Hyporheic Zone of a Headwater Mountain Stream in the Cascade Mountains, Oregon. Corvallis, OR: Oregon State University. 132 p. M.S. thesis.Argerich, Alba; Haggerty, Roy; Johnson, Sherri L.; Wondzell, Steve M.; Dosch, Nicholas; Corson-Rikert, Hayley; Ashkenas, Linda; Robert, Pennington; Thomas, Christoph K. 2016. Comprehensive multiyear carbon budget of a temperate headwater stream. Journal of Geophysical Research: Biogeosciences. 121: 1-10. doi: 10.1002/2015JG003050Lee, Baek Soo P. 2015. Hydrologic and Land Cover Effects on Sources and Fate of In-Stream Fluorescent Dissolved Organic Matter. Corvallis: Oregon State University. 163 p. Ph.D.Lee, Baek Soo; Lajtha, Kate. 2016. Hydrologic and forest management controls on dissolved organic matter characteristics in headwater streams of old-growth forests in the Oregon Cascades. Forest Ecology and Management. 380(15): 11-22. doi: 10.1016/j.foreco.2016.08.029Related FilesTitle: The Cooperative Chemical Analytical Laboratory (CCAL)Description: The CCAL web page describes analytical methodology, detection levels and instrumentation. CCAL is a cooperative laboratory operated by Oregon State University and the U.S. Department of Agriculture, Forest Service.URL: https://ccal.oregonstate.edu/Title: Proportional water sampling systemDescription: Description of the Sigma sampler and proportional water sampling system (2003-Present)URL: https://andrewsforest.oregonstate.edu/data/studies/cf002/Sigma_sampler.pdfTitle: Sampling programDescription: Detailed 1988 memo describing changes in the stream and precipitation sampling programURL: https://andrewsforest.oregonstate.edu/data/studies/cf002/memo_H2Osampling_1988.pdfTitle: History of laboratory instrumentationDescription: A table showing the history of laboratory instrumentation for analytical measurementsURL: https://andrewsforest.oregonstate.edu/data/studies/cf002/CCAL_instrumentation_historic2_2014.pdfTitle: Silica data qualityDescription: Silica data quality, 1969-1983URL: https://andrewsforest.oregonstate.edu/data/studies/cf002/Historic_HJA_Silica_Data_Quality.pdfTitle: Photographs of original sampler componentsDescription: Fredriksen 1968 photographs of sampler - see Fredriksen 1969 (Pub 373) belowURL: https://andrewsforest.oregonstate.edu/data/studies/cf002/cf002pic.htmTitle: StreamChemDBDescription: Cross site stream chemistry databaseURL: https://web.fsl.orst.edu/streamchem/Title: Watershed DescriptionsDescription: Descriptions of watershed characteristics including location, geology, soils, hydrology, vegetation, climate and history.URL: https://andrewsforest.oregonstate.edu/research/infrastructure/watershedsTitle: Plant biomass and nutrient storesDescription: An unpublished preliminary report on plant biomass and nutrient stores in seven small watersheds at the H.J. Andrews Experimental Forest (August 2009)URL: https://andrewsforest.oregonstate.edu/pubs/pdf/pub5362.pdf Data Use Agreement: The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. This Data Set is released under the Creative Commons license CC BY "Attribution" (see: https://creativecommons.org/licenses/by/4.0/). Creative Commons license CC BY - Attribution is a license that allows others to distribute, remix, tweak, and build upon your work (even commercially), as long as you are credited for the original creation. This license accommodates maximum dissemination and use of licensed materials. It is considered professional conduct and an ethical obligation to acknowledge the work of other scientists. The Data User is asked to provide attribution of the original work if this data package is shared in whole or by individual parts or used in the derivation of other products. A recommended citation is provided for each Data Set in the Andrews LTER data catalog (see: http://andlter.forestry.oregonstate.edu/data/catalog/datacatalog.aspx). A generic citation is also provided for this Data Set on the website https://portal.edirepository.org in the summary metadata page. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed and all data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. General acknowledgement: Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University. Creative Commons Attribution 4.0 International Public License https://creativecommons.org/licenses/by/4.0/ CC-BY-4.0 https://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=CF002 H. J. Andrews Experimental Forest, Watersheds 1, 2, 6, 7, 8, 9, 10, Mack Creek, and Lookout Creek in the Willamette National Forest -122.26105600 -122.16744700 44.26629426 44.20119000 418 1610 meter 1968-10-02 2024-10-01 Examine stream nutrient concentrations and outputs in small watersheds, evaluate the significance of nutrient losses from a forest soil-plant system after timber harvest compared to reference watersheds, and examine the nutrient and solute budgets for small watersheds.

An update history is logged and maintained with each new version of every dataset.

annually Original metadata creation. Version1 1984-10-09 All data was automated in the fall of 1979. Regular updates are made annually, but are occasionally delayed based on the availability of streamflow values. Streamflow is combined with nutrient concentration data to produce output in kg per hectares. Analysis codes Q (Questionable lab value) and * (value below detection limit) were initiated in April, 1991. Version2 1995-09-30 Metadata restructured and moved into SQLServer metadata database LTERMETA. Data moved into SQLServer database FSDBDATA. Version3 2002-02-12 This is a major update of this data set. Nutrient concentrations (Entity 1) are updated through mid-2004 (last version was through mid-2001). Entities 2 and 3 were updated through wateryear 2003 (previous version was only through 1997). Additionally, WS 8,9,10, and Mack were refitted with updated streamflow values starting with the beginning of record. Changes were necessary due to rating curve changes in these watersheds. WS 2 data and early data for WS 6&7 was not refitted with new streamflow as the rating curves are the same. Attributes were renamed in this update process to be unique by attribute definition for the CF002 dataset . Version4 2005-03-15 This is a major structural revision and update of data into winter 2007, lab sets HJAN226-HJAN275, lab numbers 3324-4093. Unfiltered total nitrogen (UTN) and total dissolved nitrogen (TDN) are added with flags. UTN and TDN are calculated and coded as 'D' - derived before May 2005. Particulate P, Particulate N, dissolved organic nitrogen (DON), and anion-cation ratio are calculated from other analyses for all records in Entity 1 and flagged as 'D'erived. Dissolved organic Phosphorus calculation was dropped from Entity 2. UTKN and TKN are changed to 2 decimals for all values. Precipitation is changed to 2 decimals. Enddate and endtime are changed to truetype date_time. Other attributes are renamed, ie., TDP (was TP), PO4P (was OP). Silica samples are flagged as 'Q'uestionable before 10 March 1983 - Samples were frozen and analyses inconsistent. Methods are updated and lab methods added. Version7 2007-10-15 Entity 1 is updated into March 2010 although streamflow is only available through Sep 30 2009 (WY 2009), and USGS Lookout Creek streamflow for GSLOOK site through WY2008. 'Y' values are removed from Entity 1 and the streamflow (or precip) and the streamflow (or precip) qualifier codes for the beginning wateryear sample are corrected. A local copy of Entity 1 with the Y values will be maintained to produce annual flux and concentration summaries. Attribute 'wateryear' has been added to Entity 1 and Entity 2. Entity 2 has been updated through WY 2009 for all streamflow and precip sites except GSLOOK (through WY 2008). This is the first Entity 2 update including GSLOOK, WY 2005 (partial year) and complete WY 2006-2008. Resolution of 'S' and 'C' issue: There are 5 instances in which streamflow samples were collected and saved and analyzed in combination with the next sample. To satisfy Sherri's need to see even 3-week calculated values, flux values are present for the sample type = 'S' and represent the concentrations over the 6-week interval, but use the streamflow total for period ending at the Saved sample collection. Flux values for the sample type 'C' use the 6-week concentrations and streamflow beginning from the time of the saved sample collection. In the CP002 precip data, the 'S' samples are removed from Entity 2 and the 'C' type samples include precipitation over the entire collection period of any saved samples. Resolution of 1989-1991 issues of independent weekly partial and grab samples: Again, the issue here is that comparable 3-week sample intervals are desired. In the spreadsheet list sent by Linda Ashkenas several 3-week intervals with additional weekly samples were identified for WS 9 and WS10. New values are calculated at even 3 week intervals. For these cases, Entity 2 values have been modified proportionally based on the weekly collections and the formal rules developed after 1991 used to combine weekly samples in the lab. That is, partial samples were used to represent the total streamflow for the complete intended interval. Grab samples were not used in the calculations. If a 3 week interval included a partial or grab sample type, the 3-week interval was labeled as 'P' partial. In all cases the 3-week flux value represents the streamflow for the entire 3-week interval even if the concentrations are based on 'P' partial samples. This was also applied to 2 similar intervals in Feb 1996 (WS9)and Dec 1997 (WS9 and 10). However, the 1996 flood interval for WS 10, Feb 1996, could not be combined with certainty using this mathematical approach and was left as is. Note that Entity 2 before and including WY 1998 data is no longer reproducible by my automated program. Another issue arose where some concentration values were qualified with a 'C' (beginning WY 2007). 'C' values are defined as 'value confirmed, contamination or experimental tracer suspected'. In these cases the values were rerun (double-checked) by the lab confirming lab results. In all cases, field notes indicated a worm or other large insect had contaminated the sample. In two cases conductivity and chloride values were very high and an experimental tracer is suspected. Currently, these values are left in Entity 1, and also are left in entity 2 with the 'C' qualifier. However, these values were removed for calculation of mean annual concentrations. While the mean annual concentrations generally change very little by inclusion of this point, there is one case in which the annual ammonia value changed dramatically. Version8 2010-06-28 New derived entities are created for mean monthly concentration data and monthly outflow in kg/ha. Monthly data is created for all existing sites except Lookout Creek (GSLOOK). Many new attributes are added, many with enumerated domains. There are now 5 entities, and all have been through the QC process. In addition to the new entities, Entity 1 was corrected to properly type QA samples that were inadvertently listed as Grab samples (GSWS08 August 2000 and GSWS02 August 2005). Streamflow in Entity 1 is changed to cm units from inches (q_area_in is now q_area_cm). Incorrect flagging of below detection values for NH3-N data is corrected - every NH3-N value at or below 0.01 is now tagged as below detection limit beginning 4/9/1991 to Present. Derived entities have also been corrected for changes in NH3-N tagging and QA sample designations. Version9 2011-01-03 The 5 entities are renumbered from the original configuration. Entity 1 is still the raw (cleaned) proportional sample data. Entity 5 is the former Entity 2 data and is the calculated flux for each proportional sample. At this time, Entities 1 and 5 have been taken off-line by PI request. Entity 2 is mean monthly concentration, Entity 3 is still mean annual concentration, Entity 4 is mean monthly outflow in kg per ha. Version10 2011-01-03 Updated attribute description for attributes with a fine resolution datetime measurement scale to include 'PST' (pacific standard time). Version13 2012-08-30 The stream concentration data (Entity 1) is updated from March 2010 until early July 2014. Streamflow (attribute q_area_cm) is added for WaterYear 2010 through WY 2013 for all watersheds except Lookout where streamflow is added or replaces provisional data from WY 2007 to mid WY 2014. Alkalinity values are converted from units of bicarbonate carbon (HCO3-C) to Calcium carbonate (CaCO3), using a multiplicative factor of 4.1664. Version15 2014-08-26 Stream chemistry monthly and annual analyte concentration data, and monthly and sampling period fluxes, are calculated for wateryears 2010-2013 for WS 1,2,6,7,8,9,10 and Mack. Lookout Creek monthly and annual analyte concentration data, and monthly and sampling period fluxes, are calculated and added from beginning of record (May 2005 to June 2014). Alkalinity values are converted from units of bicarbonate carbon (HCO3-C) to calcium carbonate (CaCO3) for all entities. Minor corrections to the 26 August 2014 version of Entity 1 change extreme values for two contaminated samples to null values. Version16 2014-09-17 Entity 6 is created from stream water sample field log sheets that include sample collection times, sampler type, and field and lab comments associated with the water sample collection and laboratory analyses. Version17 2015-08-14 Entity 6: the field_comments attribute is modified to add field notes from HJ_Notes_Corvallis field log that pertain to stream chemistry. Version18 2015-08-19 Entity 6 is updated from June 2015 through October 2015. Version19 2015-12-04 Update to fix custom unit rendering. Cannot be non-critical because also removed illegal characters from record in entity 6, so CSV file needs to be rebuilt. Version20 2016-08-25 Stream chemistry values are updated from Jun 2014 until early May 2016 for all watersheds with monthly and annual summary data updated through WY 2015 (Sep 2015). Streamflow totals are added for WY 2014 and WY 2015 for all watersheds except Lookout Creek, where streamflow data extends through April 2016. Analyte codes for all analyte measurements are updated for all years with blank codes being replaced by an 'A' code (Accepted). . Version21 2016-09-14 Entity 5, which includes nutrient outflow based on the actual 3 week collections (as compared to being summarized monthly) will once again be placed online. This data had been restricted but user needs indicate it is worth posting. Version22 2017-03-08 Stream chemistry values are updated from May 2016 until May 2019 for all watersheds with summary data updated from WY 2016 through WY 2018. Stream discharge totals are added for WY 2016, 2017 and WY 2018 for all watersheds. Stream discharge totals are revised for GSWS01 (WY 2003-WY 2015), GSWS02 (WY 1999-WY2015), and GSWS08 (WY 1988-WY2015) to account for application of revised stream rating curves for these watersheds. Mean discharge in liters per second is added along with the interval length in number of days to Entity 1, and mean monthly discharge in liters per second added to Entity 2. Version23 2019-09-19 Stream chemistry values are updated from wateryear 2019 to 2024 for all watersheds with summary data also updated. Version24 2026-02-05 Information Manager

Andrews Forest LTER Program US Forest Service Pacific Northwest Research Station 3200 SW Jefferson Way Corvallis OR 97331

hjaweb@lists.oregonstate.edu http://andrewsforest.oregonstate.edu/ Donald L. Henshaw

Pacific Northwest Research Station; Corvallis Forestry Sciences Lab; 3200 SW Jefferson Way Corvallis Oregon 97331

hja_admin@lists.oregonstate.edu 0000-0001-5952-4528 Andrews Forest LTER Site

Forest Ecosystems and Society Department in Forestry Oregon State University 201K Richardson Hall Corvallis OR 97331-5752

(541) 737-8480 lterweb@lists.oregonstate.edu http://andrewsforest.oregonstate.edu/ Field Methods - CF002 Streamwater is sampled from each stream at a rate proportional to the streamflow rate. Samples are collected in 5 gal. polyethylene carboys and stored in an insulated housing or cabinet at the gaging station. Beginning in 2005, the original site-developed samplers are being replaced with automated samplers (SIGMA type). Composite samples, collected proportionally to streamflow over approximate 3-week periods, contain representative sampling of the sediment and dissolved constituents carried by the stream over the collection period. Beginning 1988, stream proportional samples are collected weekly and refrigerated. Refrigerated samples are stored at the Andrews and transported to Corvallis for analysis every 3 weeks. Beginning in WY 2009 due to resource limitations, cold-weather samples (Nov-Mar) are left in the gage house for the entire 3-week interval, but samples are collected weekly and refrigerated throughout the rest of the year. The weekly samples are combined and analyzed as a composite 3-week sample. Before 1988, samples remained at the gage houses until transported to Corvallis for analysis. During high flow periods the samples were collected at shorter intervals to prevent the carboys from overflowing. Historically, samples were collected using a battery powered, in-house constructed sampler designed by Richard Fredriksen (Fredriksen 1969). The interface between the sampler and the recorders was an array of magnetic reed switches which were activated by magnets attached to the counter weights of the recorders. There were 20 segmented proportions equal to discharge increases of 1/20th of the expected maximum discharge. For each proportional increase in flow, the number of samples taken in the base time period increased by one. Streamflow is measured continuously with Leopold-Stevens A-35 recorders and Stevens PAT with Campbell CR-10 data logger. The original sampling rate based on streamflow used in these original reed switch samplers is now represented in the new SIGMA samplers at our long-term sampling sites. Sampling at WS1 and Lookout Creek started in 2003 and 2005 using the SIGMA samplers. WS2 was converted to the SIGMA type sampler with first composite sample on 28 June 2004 after a brief period of running the original and new sampler concurrently. Mack Creek was converted to a SIGMA sampler with first composite sample on 28 August 2007. Samples from each week within the 3-week period are typically combined at the Andrews, but partial samples (i.e., a week where operational problems with the sampler create a non-proportional or incomplete sample) and other very large samples may be combined proportionally at the lab. All samples are assigned sample type codes (TYPE). Handling of samples and assigning sample type codes have been generally consistent since Dec 1988, although modification was made in August 1991. The rules for combining samples and assigning sample type codes are as follows: All three weekly proportional samples for a given watershed sampler, whether partial (incomplete) or full (complete), are combined for the 3-week period. Successful operation of the sampler over all 3 weeks represents a complete or full (TYPE="F") sample. Any partial collection will cause the sample type designation to be partial (TYPE="P") for that entire three week period. Grab samples should be taken when no sample has been collected through the proportional sampler for any single week, sample type 'Grab (TYPE="G"). Grab samples will not be combined with other composite samples and are submitted separately to the lab. Grab samples are only analyzed if the sampler otherwise fails for the entire 3-week period. A carboy with three combined grab samples should be designated as grab (TYPE="G"). Proportional samples with less than 2 liters of water will be augmented at the lab with any grab sample that has been submitted separately and designated as augmented (TYPE="A") sample type. Note that no sample has been augmented (Type='A') since 1998. Should no sample be collected for any week, sample type is missing and listed as no analyses (TYPE='N'). Biased sample (Type 'B') type has been used infrequently since 2007 and indicates samples that were proportionally combined based on streamflow to create a 3-week sample (when crews could not get out to collect the sample after the 3rd week). From Dec 1988- Aug 1991, partial and grab weekly samples were analyzed independently of full weekly samples. Flux values for these 3-week periods are based on the weekly samples and have been calculated mathematically (in flux calculations) using current rules for combining samples in the lab. Before Dec 1988 samples were only collected on a 3-week basis. Successful operation of the sampler over the 3 week period represents a complete or full (TYPE="F") sample. When the sampler failed or was out of operation for the entire 3 week period, a grab (TYPE='G') sample was taken to represent the entire period. When the sampler failed or was out of operation for part of the 3 week period, the sample is designated as partial (TYPE="P"). When the partial samples contained insufficient water for analysis, they were "augmented" (TYPE="A") with a grab sample to a level considered sufficient for conducting all analytical measurements. There are only a few cases when the sample contained insufficient water and were saved (TYPE='S') and combined (TYPE='C') with the following sample for analysis. In these cases, there are no independent analytical values for the saved samples (TYPE='S'). Flux values are created for the saved sample interval using streamflow from this interval and using the analytical values from the combined sample representing the 6-week interval. Date and times listed as data_time in the data files refer to the end date of a collection period. Data is summarized by water year: October 1 to September 30. To allow summarization by water year, an artificial end-of-year sample point (TYPE="YE") is inserted on Sept 30 every year (Entity 5 flux data only) but is not an actual sample . Nutrient concentrations from the next analyzed sample (in October) are used with the streamflow total ending Sep 30 , the end of the wateryear, to calculate flux for this interval, which is designated TYPE="YE". Similarly, the flux value for this first sample of the new wateryear in October is calculated based on concentration values from the October sample and on streamflow beginning Oct 1. Quality control samples were taken biannually (one in the winter and one in the summer) at one site each year between 1989 and 2007. Grab QAQC samples were collected above and below the station, and two samples collected from streamwater flowing through the sampler. One of the through-sampler collections was stored at the gagehouse and transported to the lab with the composite sample the following week. The other through-sampler sample and the grab samples were refrigerated at the Andrews until the composite samples are brought to CCAL in Corvallis for analysis. Quality control samples were analyzed using the same methods as the composite samples. these samples are not made public online but are available on request. 1) Fredriksen locally-designed battery powered proportional stream water samplers with reed switch assembly (1968-Present); 2) Sigma Model 900 standard portable sampler and a Campbell Scientific CR-10X datalogger (2003-Present). The Sigma sampler is a commercially available and portable sampler powered by a 12 volt battery that has a peristaltic pump, and a programmable control unit. The controller is programmed for flow-based, composite sampling to produce outputs for events that are captured by a datalogger. The controller is programmed to produce repeatable and accurate sample volumes. A record of the program sample history is stored in the controller, and can be reviewed by the operator. The sample storage container is located in the insulated base housing of the Sigma. The sampling system CR-10X is also used to measure and record stream stage height at the gauging station; 3) Streamflow is measured continuously with Leopold-Stevens A-35 recorders and Stevens PAT with Campbell CR-10 data logger. Laboratory Methods - CF002 Laboratory procedures: Official compilation of water analyses begins with the WY 1969 (10/1/68). Originally, samples are analyzed for suspended sediment, alkalinity, pH, ammonia nitrogen, nitrate, nitrite, dissolved kjeldahl nitrogen, ortho (reactive soluble) and total dissolved phosphorus, sodium, potassium, calcium, magnesium, and silica. Sulfate was determined for WY 1972 and sulfate and chloride in WY 1979. Sulphur and Chloride were analyzed at the University of Washington beginning 1988 until 2004, and are now conducted by CCAL at Oregon State. Analysis of specific conductivity was added in Dec 1974 and total P on an unfiltered samples in Oct 1974. Analysis of total kjeldahl N on an unfiltered sample was started in June 1978. Total N is calculated from the total Kjeldahl and NO3-N until May 2005. Direct analytical measurement of Total dissolved N and Total N (unfiltered sample) begins in May 2005. Dissolved organic carbon analytical measurement begins in 2003. Aluminum, iron, manganese, and nitrite were below levels of detection and were subsequently dropped from analysis. In general, duplicates were run on all analyses until Oct 1983, and are currently conducted randomly. Other notes on analyses: 1) From 1969 - 1973 samples were analyzed for free ammonia (FNH3) prior to being digested for total nitrogen (DON). The FNH3 was driven off and collected and analyzed separately. Then the sample was digested and analyzed for DON. For these years TKN represents the sum of DON and FNH3. Listed Total Kjeldahl N (TKN) values from 6/1/1970-6/21/1971 for GSWS09 and GSWS10 do not include free ammonia (NH3-N) and are shown as estimated. 2) A combination of factors cause the results for silica prior to 17 March 1983 to be labeled as "Q"uestionable. Historic records indicate that many, if not all, of the samples prior to that date were frozen prior to analysis for silica. Freezing samples prior to analysis for silica will reduce the final analyzed concentration of reactive silica (the form we have historically determined). Another complicating factor is that the methodology changed about this same time. Until 1982, a stannous chloride method was used to determine silica, and this method is more prone to variability due to reagent instability. Until May 2005, the CCAL lab analyzed for total dissolved Kjeldahl nitrogen (TKN) and also for total Kjeldahl nitrogen (UTKN), which is performed using an unfiltered sample and includes any particulates (sediment, biota) present. All dissolved results exclude particulates of 0.7 microns or greater. TKN includes NH3-N, but does not include NO3-N. The following are mathematically calculated in the data set and coded as 'D' when this occurs: Dissolved organic nitrogen (DON) = TKN - NH3N Total dissolved nitrogen (TDN) = TKN + NO3N (directly analyzed after May 2005) Total nitrogen (UTN) = UTKN + NO3N (directly analyzed after May 2005) Particulate nitrogen (PARTN) = UTKN-TKN, or UTN-TDN (after May 2005) Particulate phosphorous (PARTP) = UTP - TDP Currently, all samples are filtered upon arrival at the Corvallis lab (CCAL) and pH, alkalinity, conductivity, and autoanalyzer runs (NO3-N, NH4-N, SI) are made immediately. All analyses are completed within 6 weeks. Generally, samples are stored at 0 degrees C if not analyzed immediately. In the first year of sample collection (1968-1969), water was stored at 0 degrees C until operation of the PNW-1653 local lab in spring, 1969. Generally, there is much greater trust and consistency to analytical measurements beginning in 1983. Processing Procedure - CF002 Monthly concentrations and fluxes were interpolated from the 3-week sampling data. This was a one-time effort that will only be continued as time allows. The Viscual FoxPro (VFP) programs can be shared with interested researchers. The process for creating monthly summaries are listed in: P:\FSDB\HF04\work_don\monthly_chem\status.txt and the work was performed here in Dec 2010. The key program is pio_month.prg, but other processing is necessary first, and the pio_true_mon.prg is used to produce mean annual concentration. In VFP, Entity 1 CF00201_final is the raw concentration data CF00201_month is the raw concentration/interval data, raw data with 'M' and 'Y' points CF00201_year is the original CF00201_TRUE, raw data with 'Y' points Entity 2 CF00202_final is new mean monthly concentration data Entity 3 CF00203_final is mean annual concentration data Entity 4 CF00204_final is new total monthly flux data Entity 5 CF00205_final is the old Entity 2 data (CF00202_TRUE) - calculated flux for each sample Laboratory Methods - CCAL: Alkalinity APHA 2320, titrate to pH 4.5. Modifications: Use 0.02N Na2CO3 and 0.02N H2SO4 Radiometer type TTT lc auto-titrator with glass pH electrode, calomel reference electrode and temperature compensator electrode Laboratory Methods - CCAL: Ammonia APHA 4500-NH3 G; EPA 350.1 Technicon Auto-Analyzer II Laboratory Methods - CCAL: Calcium APHA 3111 D; flame atomic absorption spectroscopy. Modifications: nitrous oxide/ acetylene flame. Addition of 1 ml 50,000 mg/1 lanthanum oxide to 10 ml sample to control ionization. Varian SpectrAA220; Metals by Flame Atomic Absorption Spectrometry; Nitrous Oxide-Acetylene Flame Method Laboratory Methods - CCAL: Diss. Organic Carbon APHA 5310 B Shimadzu TOC-VCSH Combustion Analyzer Laboratory Methods - CCAL: Chloride APHA 4110 B; EPA 9056A Dionex 1500 Ion Chromatograph Laboratory Methods - CCAL: Specific conductance APHA 2510; Wheatstone bridge. YSI model 3200 Laboratory Methods - CCAL: Magnesium APHA 3111 B; flame atomic absorption spectroscopy. Varian SpectrAA220; Metals by Flame Atomic Absorption Spectrometry; Direct Air-Acetylene Flame Method Laboratory Methods - CCAL: Nitrate APHA 4500-NO3 F; EPA 353.3. Cadmium reduction method. Technicon Auto-Analyzer II Laboratory Methods - CCAL: Total nitrogen Persulfate digestion and analysis by automated colorimetric analysis Technicon Auto-Analyzer II Laboratory Methods - CCAL: pH APHA 4500 H; Calomel reference electrode, glass pH electrode, temperature compensator. Radiometer type TTT lc auto-titrator with glass pH electrode, calomel reference electrode and temperature compensator electrode Laboratory Methods - CCAL: Ortho phosphate APHA 4500-P E; EPA 365.2. Ascorbic acid method. Milton-Roy 601 Spectrophotometer with 10 cm pathlength Laboratory Methods - CCAL: Total phosphorous APHA 4500-P B; APHA 4500-P E; EPA 365.2. Modifications: microwave digestion 60 minutes, 50 ml analysis volume, Ascorbic acid method. The laboratory has automated the method used for analysis of total phosphorus (total phosphorus for unfiltered samples and total dissolved phosphorus for filtered samples) as of 16 June 2010. Samples submitted to the laboratory will now be analyzed using the Technicon Auto-Analyzer II (the same instrument used for analysis of nitrate, ammonia, phosphate, silica and total nitrogen). We have discontinued the routine use of the manual method using the Milton-Roy 601 spectrophotometer at this time. We ran the manual method through the end of calendar year 2010 in an attempt to run comparisons for projects with historic results from the manual method. Results indicate there is expectation for reduced UTP/TDP due to the analytical change. Milton-Roy 601 Spectrophotometer with 10 cm pathlength and the Technicon Auto-Analyzer II beginning June 2010 Laboratory Methods - CCAL: Potassium APHA 3111 B; flame atomic absorption spectroscopy. Varian SpectrAA220; Metals by Flame Atomic Absorption Spectrometry; Direct Air-Acetylene Flame Method Laboratory Methods - CCAL: Silica APHA 4500-SiO2 E; Technicon industrial method 105-71W/B. Technicon Auto-Analyzer II Laboratory Methods - CCAL: Sodium APHA 3111 B; flame atomic absorption spectroscopy. Varian SpectrAA220; Metals by Flame Atomic Absorption Spectrometry; Direct Air-Acetylene Flame Method Laboratory Methods - CCAL: Sulfate APHA 4110 B; EPA 9056A Dionex1500 Ion Chromatograph Laboratory Methods - CCAL: Suspended sediment APHA 2540 D Models/Algorithms Methods - CF002 Water samples are collected proportionally to streamflow. To obtain mean monthly concentration of analytes, streamflow totals must be broken into intervals that start with the beginning of each month and end at the end of each month. Streamflow is totaled in centimeters from the beginning of each month to the time of the first proportional sample, and from the time of first proportional sample to either the time of the next proportional sample or the end of the month, whichever comes first. Then for each interval, a streamflow total and set of analyte concentrations are available. For the monthly markers at the beginning and end of each month, analyte concentrations from the proportional sample being collected at the month change are assigned. FOR example, analyte concentration values for a 3-week sample collected on Feb 5 would also be assigned to the end of January marker and would therefore be included in the January mean. Analytes from each interval within the month are weighted by streamflow to determine mean concentrations. If samples represent 25 or less days of the month (because one or more samples are missing), the sample is coded 'P'artial. If samples are only present for 5 or less days of the month, the sample is coded 'N' for no sample. Similarly, any analyte that is not analyzed for at least 25 days in a month will be given an 'I'ncomplete qualifier tag for mean monthly concentration values. Flux values calculated from 'I'ncomplete sample analyte concentrations, but are based on the complete streamflow for the month will be considered 'E'stimated. 'I'ncomplete tags will only be used in the flux data when streamflow itself is incomplete for a month. Analyte concentrations and calculated fluxes based on 5 or less days in any month will be considered missing and qualified with an 'N' code no analysis). Sample type codes for the monthly summary values are assigned as follows: F=Full, G=Grab, P=partial. Partial ('P') will have precedence over 'G'rab sample type code. That is, if any sample in a given month is listed as partial, the code will be partial. If all samples are Grab for the month, the code will be Grab. Only if all samples IN month are 'F'ull will the type be labeled 'F'ull. For other analysis codes, any monthly concentration OR flux based on derived calculations will be qualified with a 'D'erived as part of the code. Additionally, collective analysis code for each analyte concentration is assigned and up to two other qualifier codes will be displayed if present for any analysis within the month in the following order of precedence: Estimated, questionable, below detection (E, Q, *). Also note that F=S=C (Saved and Combined samples are treated as 'Full' samples. Saved samples use the 'C'ombined sample analytical concentrations for flux calculation. Key conversion: Kg/ha= 0.1 * mg/l * cm where cm = centimeters of streamflow over the watershed area, and mg/l = milligrams per liter nutrient concentration. Watersheds 1 and 2 comprise a low-elevation (442 m to 1082 m) pair of experimental basins with Watershed 2 serving as the control. Watersheds 6, 7, and 8 comprise a high-elevation (863 m to 1190 m) set of experimental basins with Watershed 8 as the control. Watersheds 9 and 10 are a low-elevation pair of small watersheds with Watershed 9 as the control. Mack Ck is a third order, old-growth watershed. Vegetation on Watershed 9 and Watershed 10 (prior to logging) consisted primarily of 450-year-old Douglas-fir mixed with hemlock and younger Douglas-fir. Mid elevation watersheds (1500 ft and 3600 ft). Watershed 2 and 9 are first to second order old-growth watersheds (headwaters of watershed 9 were burned in the 1890's). Old-growth stands are approximately 450 yr old and are dominated by Psme and Tshe at lower elevations and also by Abam at the higher elevations. Watersheds 2, 8, and 9 are undisturbed controls. Sampling frequency: 1-3 weeks Long term trends in stream water nutrient concentrations and fluxes from gaged experimental watersheds are monitored. Stream water samples are collected over a three week period in proportion to streamflow. Several of the watersheds have been harvested during the study period. Nutrient concentrations of analytes are conducted at the Chemical Cooperative Analytic Laboratory (CCAL) in Corvallis, Oregon. The H.J. Andrews Experimental Forest is within the Lookout Creek Basin (6250 ha). Lookout Creek as well as nine smaller watersheds within the basin have gaging stations. Dominant overstory vegetation is Douglas-fir. Proportional stream water samples are collected at groups of small watersheds with differing harvest treatments: WS 1 and 2; WS 6, 7, and 8; WS 9 and 10. Watersheds 2, 8, and 9 are unharvested reference basins. Mack Creek is a larger basin (600 ha) with old-growth vegetation and Lookout Creek is a 5th order watershed with a USGS gaging station. Drainage areas for the small watersheds range from 9 to 100 ha and elevations range from 460 to 960 m. Watersheds stream sampling history in the H. J. Andrews Forest: Watershed 1: 100% clearcut 1962-1966, burned 1966, no roads; sampling record WY 2003 to present Watershed 2: Control; sampling record WY 1981 to present Watershed 6: 9% roaded 1963, 100% clearcut 1974; sampling record 1972 to 1987, restarted 2003 to present Watershed 7: 60% shelterwood cut 1974, remaining 40% overstory cut in 1984, thinned 2001; sampling record 1972 to 1987, restarted 2002 to present Watershed 8: Control; sampling record WY 1972 to present Watershed 9: Control; sampling record WY 1969 to present Watershed 10: 100% clearcut 1975, unburned; sampling record WY 1969 to present Mack Creek: Control, third-order watershed; sampling record WY 1981 to present Lookout Creek: Approximately 25% harvested; sampling record WY 2005 to present See http://andrewsforest.oregonstate.edu/research/infrastructure/watersheds for more information. Citation: Fredriksen, R. L. Study Plan--Nutrient cycle of a small watershed in the Douglas-fir region of the western slope of the Cascade range in Oregon. 1967. PNW-FSL-1602-22 Andrews Experimental Forest (HJA) -122.26172200 -122.10084700 44.28196400 44.19770400 1631 1631 meter Andrews Watershed 1 Gaging Station -122.25802700 -122.25802700 44.20733900 44.20733900 439 439 meter Andrews Watershed 2 Gaging Station -122.24487600 -122.24487600 44.21201500 44.21201500 545 545 meter Andrews Watershed 6 Gaging Station -122.18070700 -122.18070700 44.26150800 44.26150800 878 878 meter Andrews Watershed 7 Gaging Station -122.17526500 -122.17526500 44.26463700 44.26463700 918 918 meter Andrews Watershed 8 Gaging Station -122.17079300 -122.17079300 44.26629426 44.26629426 962 962 meter Andrews Watershed 9 Gaging Station -122.25880100 -122.25880100 44.20119000 44.20119000 426 426 meter Andrews Watershed 10 Gaging Station -122.26105600 -122.26105600 44.21705700 44.21705700 461 461 meter Andrews Mack Creek Gaging Station -122.16744700 -122.16744700 44.21943621 44.21943621 755 755 meter Mack Creek -122.16826200 -122.14698900 44.22714600 44.20991900 Andrews Watershed 10 -122.25996600 -122.25443900 44.22015200 44.21678600 679 679 meter Andrews Watershed 2 -122.24397600 -122.22974100 44.21338500 44.20617800 1079 1079 meter Andrews Watershed 6 -122.18351000 -122.17755000 44.26680800 44.26154400 1029 1029 meter Andrews Watershed 7 -122.17920900 -122.17387500 44.26974800 44.26457900 1102 1102 meter Andrews Watershed 8 -122.17079300 -122.17079300 44.26629400 44.26588100 1182 1182 meter Andrews Watershed 9 -122.25781500 -122.25151500 44.20393300 44.20111000 731 731 meter Andrews Watershed 1 -122.25683100 -122.23581300 44.20851700 44.19901700 1027 1027 meter Andrews Lookout Creek Gaging Station -122.25714600 -122.25714600 44.21012600 44.21012600 422 422 meter Posy Elizabeth Busby

Assistant Professor OSU Botany & Plant Pathology

busbyp@science.oregonstate.edu posybusby@gmail.com http://bpp.oregonstate.edu/content/posy-busby 0000-0002-2837-9820 Principal Investigator Matthew G Betts

Department of Forest Ecosystems and Society; 201E Richardson Hall; College of Forestry; Oregon State University Corvallis OR 97331

(541) 737-3841 matt.betts@oregonstate.edu http://www.fsl.orst.edu/flel/index.htm 0000-0002-7100-2551 Principal Investigator Brooke E. Penaluna brooke.penaluna@usda.gov Brooke.Penaluna@oregonstate.edu https://www.fs.fed.us/pnw/lwm/aem/people/penaluna.html 0000-0001-7215-770X Principal Investigator Catalina Segura

Assistant Professor; Department of Forest Engineering, Resources, and Management; Oregon State University Corvallis OR 97331

541-737-6568 catalina.segura@oregonstate.edu http://ferm.forestry.oregonstate.edu/facstaff/segura-catalina 0000-0002-0924-1172 Principal Investigator David M. Bell david.bell@usda.gov david.bell@oregonstate.edu https://lemma.forestry.oregonstate.edu/about/david-bell 0000-0002-2673-5836 Principal Investigator The H.J. Andrews Experimental Forest is a living laboratory that provides unparalleled opportunities for the study of forest and stream ecosystems in the central Cascade Range of Oregon. Since 1980, as a part of the National Science Foundation Long Term Ecological Research (NSF-LTER) program, the Andrews Experimental Forest has become a leader in the analysis of forest and stream ecosystem dynamics. Long-term field experiments and measurement programs have focused on climate dynamics, streamflow, water quality, and vegetation succession. Currently researchers are working to develop concepts and tools needed to predict effects of natural disturbance, land use, and climate change on ecosystem structure, function, and species composition. The Andrews Experimental Forest is administered cooperatively by the USDA Forest Service Pacific Northwest Research Station, Oregon State University and the Willamette National Forest. Funding for the research program comes from the National Science Foundation (NSF), US Forest Service Pacific Northwest Research Station, Oregon State University, and other sources. Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University. National Science Foundation: DEB2025755 National Science Foundation https://ror.org/021nxhr62 DEB2025755 https://www.nsf.gov/awardsearch/showAward?AWD_ID=2025755 The Andrews Forest is situated in the western Cascade Range of Oregon, and covers the entire 15,800-acre (6400-ha) drainage basin of Lookout Creek. Elevation ranges from 1350 to 5340 feet (410 to 1630 m). Broadly representative of the rugged mountainous landscape of the Pacific Northwest, the Andrews Forest contains excellent examples of the region's conifer forests and associated wildlife and stream ecosystems. These forests are among the tallest and most productive in the world, with tree heights of often greater than 250 ft (75 m). Streams are steep, cold and clean, providing habitat for numerous aquatic organisms. CF00201 Proportional stream water sample nutrient concentrations This is the raw proportional sample concentration data collected periodically (usually every three weeks). Please see mean monthly concentration data provided in entity 2. CF00201_v7.csv 1588863 dc4b370c624a28b7164a92bb766b8587 1 \r\n column , " https://andlter.forestry.oregonstate.edu/data/register/dataaccess.aspx?docid=CF00201_v7.csv 1968-10-01 2024-10-01 STCODE Study code char(5) CF002 Study code CF002 ENTITY Entity number numeric(1,0) number 1.000000 natural 1.0000 1.0000 SITECODE Gaging station site code char(6) GSWS01 Andrews Watershed 1 Gaging Station GSWS02 Andrews Watershed 2 Gaging Station GSWS06 Andrews Watershed 6 Gaging Station GSWS07 Andrews Watershed 7 Gaging Station GSWS08 Andrews Watershed 8 Gaging Station GSWS09 Andrews Watershed 9 Gaging Station GSWS10 Andrews Watershed 10 Gaging Station GSMACK Andrews Mack Creek Gaging Station GSLOOK Andrews Lookout Creek Gaging Station WATERYEAR Water year of sample or annual summary (October-September) numeric(4,0) number 1.000000 natural 1969.0000 2024.0000 DATE_TIME Collection date and time (PST) of the stream water sample - sample collected proportionally to streamflow from the previous sample date and time. Assume beginning date of first sample period for each collector is October 1st. datetime YYYY-MM-DD hh:mm:ss 60.000000 10/9/1968 12:00:00 PM 10/1/2024 12:00:00 AM LABNO Lab number code for sample char(4) Lab number code for sample TYPE Sample type indicator char(2) QB Quality control samples taken below turbulence box QS Quality control sample taken through sampler QL Quality control sample taken through sampler and left in gage house until next collection QA Quality control sample taken above flume C Sample combined with preceeding saved sample(s) for analysis G Grab sample taken in lieu of proportional sample S Sample saved to combine with following collection (type 'C') due to insufficient water. Nutrient concentrations of the following stream water sample are used to determine fluxes for this period. N No sample is collected for this period F Complete, full sample. Sampler operational throughout sampling period. YE Year end marker allows summary by water year - this is not a sample. Flux values are calculated from streamflow ending Sep 30 and use analyte concentrations from the following sample. 'Y' markers are inserted every Sep30 A Augmented sample - grab sample added to insufficient proportional sample (rarely used after 1987) P Partial sample - proportional sampler did not operate successfully over entire period B Biased sample - consecutive samples are proportionally separated and combined based on streamflow - code use begins WY 2008 to approx. two 3-week sampling intervals (where one sample is for 4 wks and the next for 2 wks) INTERVAL Proportional sampling interval length in days numeric(6,2) number 0.020000 real 0.0000 114.0000 MEAN_LPS Mean discharge over the sampling interval numeric(8,2) liters per second 0.100000 real 0.0000 19578.0000 Q_AREA_CM Streamflow in cm for the time interval represented by the proportional sample numeric(6,2) centimeters 0.025000 real 0.0000 116.3100 QCODE Streamflow value qualifier code char(1) A Accepted value for streamflow N No streamflow available for period E Estimated streamflow value P Fire effects may have impacted the data Q Streamflow value for the period is questionable PH pH (hydrogen concentration); method: glass electrode numeric(5,1) pH units 0.100000 real 4.2000 8.4000 PHCODE pH value qualifier code char(1) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) COND Specific conductance; method: wheatstone bridge numeric(6,1) micro siemens per centimeter 0.400000 real 14.4000 98.0000 CONDCODE Conductivity value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Confirmed value, contamination or experimental tracer suspected (code use begins May 2007) ALK Alkalinity as calcium carbonate (CaCO3); method: electrometric titration to pH 4.5; all data is converted from the formerly used units of bicarbonate carbon (HCO3-C) numeric(6,2) milligrams per liter 0.020000 real 0.0000 51.5500 ALKCODE Alkalinity value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) SSED Suspended sediment concentration; method: nonfiltrable residue, gravimetric numeric(7,2) milligrams per liter 0.010000 real 0.0000 5411.0100 SSEDCODE Suspended sediment value qualifier code char(1) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) SI Silica as silicon concentration; method: automated molybdenum blue numeric(6,2) milligrams per liter 0.050000 real 0.1500 15.0000 SICODE Silica value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) UTP Unfiltered total phosphorus concentration; method: persulfate/H2SO4 digestion, ascorbic acid finish numeric(6,3) milligrams per liter 0.002000 real 0.0050 0.4920 UTPCODE Unfiltered total phosphorus value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination suspected (code use begins May 2011) TDP Total dissolved phosphorus concentration; method: persulfate/H2SO4 digestion, ascorbic acid finish numeric(6,3) milligrams per liter 0.002000 real 0.0000 0.4930 TDPCODE Total dissolved phosphorus value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination suspected (code use begins May 2011) PARTP Particulate P, also known as total suspended phosphorus - not measured analytically; mathematically determined by subtraction of Total Dissolved P (TDP) from Unfiltered Total P (UTP) numeric(6,3) milligrams per liter 0.002000 real 0.0000 0.4780 PARTPCODE Particulate P value qualifier code char(2) N No derived value is calculated due to missing analytical components D Derived value - mathematically determined from other analytical measurements D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values PO4P Ortho phosphorus concentration, soluble reactive phosphorus, phosphate (PO4-P); method: ascorbic acid finish numeric(6,3) milligrams per liter 0.001000 real 0.0000 0.1090 PO4PCODE Ortho phosphorus value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination suspected (code use begins May 2011) UTN Total nitrogen concentration (unfiltered sample); method: persulfate digestion and analysis by automated colorimetric analysis; instrument: Technicon Auto-Analyzer II numeric(6,2) milligrams per liter 0.010000 real 0.0000 2.7900 UTNCODE Unfiltered total nitrogen value qualifier code char(2) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value Q Value is questionable (used beginning in 1991) D Derived value - mathematically determined from other analytical measurements D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values N No analytical measurement or no derived value calculated due to missing analytical components C Value confirmed, contamination suspected (code use begins May 2011) TDN Total dissolved nitrogen concentration (filtered sample); method: persulfate digestion and analysis by automated colorimetric analysis; instrument: Technicon Auto-Analyzer II numeric(6,2) milligrams per liter 0.010000 real 0.0000 1.6600 TDNCODE Total dissolved nitrogen value qualifier code char(2) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value Q Value is questionable (used beginning in 1991) D Derived value - mathematically determined from other analytical measurements D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values N No analytical measurement or no derived value calculated due to missing analytical components C Value confirmed, contamination suspected (code use begins May 2007) DON Dissolved organic nitrogen - not measured analytically; mathematically determined by subtracting NH3-N and NO3-N from Total dissolved nitrogen. Values before May 2005 are determined by TKN minus NH3-N. numeric(6,2) milligrams per liter 0.010000 real 0.0000 0.4200 DONCODE Dissolved organic nitrogen value qualifier code char(2) N No derived value is calculated due to missing analytical components D Derived value - mathematically determined from other analytical measurements D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values DC Derived value confirmed, contamination suspected (code use begins May 2007) PARTN Particulate N, also known as total suspended nitrogen - not measured analytically; mathematically determined by subtraction of Total dissolved nitrogen (TDN) from Unfiltered Total nitrogen (UTN). Values before May 2005 are determined by UTKN minus TKN. numeric(6,2) milligrams per liter 0.010000 real 0.0000 2.6900 PARTNCODE Particulate N value qualifier code char(2) N No derived value is calculated due to missing analytical components D Derived value - mathematically determined from other analytical measurements D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values DC Derived value confirmed, contamination suspected (code use begins May 2007) UTKN Total Kjeldahl nitrogen concentration on unfiltered sample; method: Kjeldahl digestion H2SO4, CuSO4/KCl, nessler finish numeric(6,2) milligrams per liter 0.010000 real 0.0000 2.7600 UTKNCODE Unfiltered total Kjeldahl nitrogen value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) TKN Total Kjeldahl nitrogen concentration on filtered sample (dissolved); method: Kjeldahl digestion H2SO4, CuSO4/KCl, nessler finish numeric(6,2) milligrams per liter 0.010000 real 0.0000 0.2800 TKNCODE Total Kjeldahl nitrogen value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) NH3N Ammonia-nitrogen (NH3-N) concentration, ammonia as nitrogen; method: automated phenate numeric(6,3) milligrams per liter 0.003000 real 0.0000 0.7490 NH3NCODE NH3-N value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination suspected (code use begins May 2007) NO3N Nitrate-nitrogen (NO3-N), nitrate + nitrite as nitrogen concentration; method: automated cadmium reduction numeric(6,3) milligrams per liter 0.001000 real 0.0000 1.3680 NO3NCODE NO3-N value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination suspected (code use begins May 2011) NA Na, dissolved sodium (filtrable) concentration; method flame atomic absorption spectroscopy numeric(6,2) milligrams per liter 0.010000 real 0.0000 6.1900 NACODE Na value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) K K, dissolved potassium (filtrable) concentration; method flame atomic absorption spectroscopy numeric(6,2) milligrams per liter 0.030000 real 0.0000 9.5000 KCODE K value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) CA Ca, dissolved calcium (filtrable) concentration; method flame atomic absorption spectroscopy numeric(6,2) milligrams per liter 0.060000 real 0.0800 19.6200 CACODE Ca value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) MG Mg, dissolved magnesium (filtrable) concentration; method flame atomic absorption spectroscopy numeric(6,2) milligrams per liter 0.020000 real 0.3100 13.1100 MGCODE Mg value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) SO4S SO4-S (dissolved) concentration, sulfate as sulfur; method ion chromatography (automated barium sulfate before 1993) numeric(6,2) milligrams per liter 0.020000 real 0.0000 6.4200 SO4SCODE SO4-S value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) CL Chloride (dissolved) concentration; method: ion chromatography (automated ferric thiocyanate before 1993) numeric(6,2) milligrams per liter 0.010000 real 0.0200 19.2800 CLCODE Cl value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination or experimental tracer suspected (code use begins May 2007) DOC DOC, dissolved organic carbon concentration; method: combustion numeric(6,2) milligrams per liter 0.050000 real 0.1900 9.2100 DOCCODE DOC value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) PVOL Sample volume from streamflow porportional sampler numeric(7,3) kilograms 0.001000 real 0.0000 49.3430 PVOLCODE Sample volume code char(1) A Accepted value for sample volume E Sample volume value is estimated Q Sample volume value is questionable - typically implies volume is measured correctly, but volume does not proportionally represent the collection period N No sample volume value available ANCA Anion-cation ratio: micro equivalence ratio of anions to cations by calculation - provided only as an analytical check. Requires anions: ALK, SO4S, CL, NO3N, PO4P, cations: pH, Na, K, Ca, Mg, NH4N numeric(5,2) number 0.100000 real 0.0600 2.0600 ANCACODE Anion-cation ratio qualifier code char(2) D Derived anion-cation ratio value is based on the full set of anions and cations N No anion-cation ratio calculation determined due to missing analytical components D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values PRIMARY CF00201.SITECODE CF00201.DATE_TIME NOTNULL CF00201.STCODE CF00201.TYPE CF00201.SITECODE CF00201.ENTITY CF00201.WATERYEAR CF00201.DATE_TIME 6560 CF00202 Stream water nutrient mean monthly concentrations Mean monthly concentrations are interpolated from the 3-week sampling data CF00202_v6.csv 922933 8313610e8da8c6bf62570022e425fe4b 1 \r\n column , " https://andlter.forestry.oregonstate.edu/data/register/dataaccess.aspx?docid=CF00202_v6.csv 1968-10-01 2024-09-01 STCODE Study code char(5) CF002 Study code CF002 ENTITY Entity number numeric(1,0) number 1.000000 natural 2.0000 2.0000 SITECODE Gaging station site code char(6) GSWS01 Andrews Watershed 1 Gaging Station GSWS02 Andrews Watershed 2 Gaging Station GSWS06 Andrews Watershed 6 Gaging Station GSWS07 Andrews Watershed 7 Gaging Station GSWS08 Andrews Watershed 8 Gaging Station GSWS09 Andrews Watershed 9 Gaging Station GSWS10 Andrews Watershed 10 Gaging Station GSMACK Andrews Mack Creek Gaging Station GSLOOK Andrews Lookout Creek Gaging Station WATERYEAR Water year of sample or annual summary (October-September) numeric(4,0) number 1.000000 natural 1969.0000 2024.0000 YEAR Calendar year of annual or monthly summary numeric(4,0) number 1.000000 natural 1968.0000 2024.0000 MONTH Month of summary numeric(2,0) number 1.000000 natural 1.0000 12.0000 TYPE Sample type indicator char(2) QB Quality control samples taken below turbulence box QS Quality control sample taken through sampler QL Quality control sample taken through sampler and left in gage house until next collection QA Quality control sample taken above flume C Sample combined with preceeding saved sample(s) for analysis G Grab sample taken in lieu of proportional sample S Sample saved to combine with following collection (type 'C') due to insufficient water. Nutrient concentrations of the following stream water sample are used to determine fluxes for this period. N No sample is collected for this period F Complete, full sample. Sampler operational throughout sampling period. YE Year end marker allows summary by water year - this is not a sample. Flux values are calculated from streamflow ending Sep 30 and use analyte concentrations from the following sample. 'Y' markers are inserted every Sep30 A Augmented sample - grab sample added to insufficient proportional sample (rarely used after 1987) P Partial sample - proportional sampler did not operate successfully over entire period B Biased sample - consecutive samples are proportionally separated and combined based on streamflow - code use begins WY 2008 to approx. two 3-week sampling intervals (where one sample is for 4 wks and the next for 2 wks) MEAN_LPS Mean discharge over the sampling interval numeric(8,2) liters per second 0.100000 real 0.0100 12606.0000 Q_AREA_MO Total monthly streamflow over watershed area numeric(6,2) centimeters 0.250000 real 0.0300 82.5500 QCODE_MO Monthly streamflow value qualifier code char(1) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values P Fire effects may have impacted the data PH_MO Mean monthly pH numeric(5,2) pH units 0.100000 real 4.3100 8.0100 PHCODE_MO Monthly pH value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values IE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values estimated COND_MO Mean monthly specific conductivity concentration numeric(6,2) micro siemens per centimeter 0.400000 real 16.8600 92.0500 CONDCODE_MO Monthly conductivity value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values IE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values estimated ALK_MO Mean monthly alkalinity concentration as CaCO3 (calcium carbonate) numeric(6,2) milligrams per liter 0.020000 real 3.1200 40.6000 ALKCODE_MO Monthly alkalinity qualifier value code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values SSED_MO Mean monthly suspended sediment concentratiom numeric(6,2) milligrams per liter 0.010000 real 0.0000 2658.4000 SSEDCODE_MO Monthly suspended sediment value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values SI_MO Mean monthly silica concentration numeric(6,2) milligrams per liter 0.050000 real 1.0400 12.6000 SICODE_MO Monthly silica value qualifier code char(2) A Accepted monthly value I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values IQ Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values questionable E Monthly value includes estimated values EQ Monthly value includes estimated values; one or more values were questionable UTP_MO Mean monthly unfiltered total phosphorus concentration numeric(6,3) milligrams per liter 0.002000 real 0.0060 0.4410 UTPCODE_MO Monthly unfiltered total phosphorus value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values IE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values estimated TDP_MO Mean monthly total dissolved phosphorus concentration numeric(6,3) milligrams per liter 0.002000 real 0.0020 0.3330 TDPCODE_MO Monthly total dissolved phosphorus value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values * Monthly value includes one or more values measured below the detection limit PO4P_MO Mean monthly ortho phosphorus (PO4-P) concentration numeric(6,3) milligrams per liter 0.001000 real 0.0020 0.0910 PO4PCODE_MO Monthly ortho phosphorus (PO4-P) value qualifier code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values PARTP_MO Mean monthly particulate P - not measured analytically; mathematically determined by subtraction of Total Dissolved P (TDP) from Unfiltered Total P (UTP) numeric(6,3) milligrams per liter 0.002000 real 0.0000 0.4280 PARTPCODE_MO Monthly particulate P value qualifier code char(3) D Monthly value based on derived values DE Monthly value based on derived values; one or more values estimated DQ Monthly value based on derived values; one or more values questionable ID Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values IDE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values are estimated N No analyses conducted for proportional samples taken during the month UTN_MO Mean monthly total nitrogen concentration (unfiltered samples) numeric(6,2) milligrams per liter 0.010000 real 0.0000 2.6100 UTNCODE_MO Monthly unfiltered total nitrogen value qualifier code char(3) * Monthly value includes one or more values measured below the detection limit D Monthly value based on derived values D* Monthly value based on derived values; one or more values measured below the detection limit DE Monthly value based on derived values; one or more values estimated DQ Monthly value based on derived values; one or more values questionable DQ* Monthly value based on derived values; one or more values questionable; one or more values measured below the detection limit I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary ID Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values ID* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values measured below the detection limit IDE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values are estimated N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values E Monthly value includes estimated values DE* Monthly value based on derived values; one or more values estimated; one or more values measured below the detection limit Q* Monthly value includes questionable sample values; one or more values measured below the detection limit A Accepted monthly value I* Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary; one or more values measured below the detection limit E* One or more values estimated; one or more values measured below the detection limit TDN_MO Mean monthly total dissolved nitrogen concentration numeric(6,2) milligrams per liter 0.010000 real 0.0000 0.4800 TDNCODE_MO Monthly total dissolved nitrogen value qualifier code char(3) * Monthly value includes one or more values measured below the detection limit D Monthly value based on derived values D* Monthly value based on derived values; one or more values measured below the detection limit DE Monthly value based on derived values; one or more values estimated DQ Monthly value based on derived values; one or more values questionable DQ* Monthly value based on derived values; one or more values questionable; one or more values measured below the detection limit I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary ID Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values ID* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values measured below the detection limit IDE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values are estimated N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values E Monthly value includes estimated values DE* Monthly value based on derived values; one or more values estimated; one or more values measured below the detection limit Q* Monthly value includes questionable sample values; one or more values measured below the detection limit A Accepted monthly value I* Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary; one or more values measured below the detection limit E* One or more values estimated; one or more values measured below the detection limit DON_MO Mean monthly dissolved organic N concentration - not measured analytically; mathematically determined by subtracting NH3-N and NO3-N from Total dissolved nitrogen. Values before May 2005 are determined by TKN minus NH3-N numeric(6,2) milligrams per liter 0.010000 real 0.0000 0.1400 DONCODE_MO Monthly dissolved organic N value qualifier code char(3) D Monthly value based on derived values D* Monthly value based on derived values; one or more values measured below the detection limit DE Monthly value based on derived values; one or more values estimated DQ Monthly value based on derived values; one or more values questionable DQ* Monthly value based on derived values; one or more values questionable; one or more values measured below the detection limit ID Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values ID* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values measured below the detection limit N No analyses conducted for proportional samples taken during the month DE* Monthly value based on derived values; one or more values estimated; one or more values measured below the detection limit PARTN_MO Mean monthly particulate N concentration - not measured analytically; mathematically determined by subtraction of Total dissolved nitrogen (TDN) from Unfiltered Total nitrogen (UTN). Values before May 2005 are determined by UTKN minus TKN. numeric(6,2) milligrams per liter 0.010000 real 0.0000 2.5100 PARTNCODE_MO Monthly particulate N value qualifier code char(3) D Monthly value based on derived values D* Monthly value based on derived values; one or more values measured below the detection limit DE Monthly value based on derived values; one or more values estimated DQ Monthly value based on derived values; one or more values questionable ID Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values N No analyses conducted for proportional samples taken during the month DQ* Monthly value based on derived values; one or more values questionable; one or more values measured below the detection limit ID* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values; one or more values measured below the detection limit DE* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values; one or more values estimated UTKN_MO Mean monthly unfiltered total Kjeldahl nitrogen concentration numeric(6,2) milligrams per liter 0.010000 real 0.0000 2.5800 UTKNCODE_MO Monthly unfiltered total Kjeldahl nitrogen value qualifier code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values TKN_MO Mean monthly total kjeldahl nitrogen concentration (dissolved) numeric(6,2) milligrams per liter 0.010000 real 0.0000 0.2300 TKNCODE_MO Monthly total Kjeldahl nitrogen (dissolved) value qualifier code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values NH3N_MO Mean monthly ammonia-nitrogen (NH3-N) concentration numeric(6,3) milligrams per liter 0.003000 real 0.0000 0.2030 NH3NCODE_MO Monthly ammonia-nitrogen (NH3-N) value qualifier code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q* Monthly value includes questionable sample values; one or more values measured below the detection limit I* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values measured below the detection limit E* Monthly value includes estimated values; one or more values measured below the detection limit NO3N_MO Mean monthly nitrate-nitrogen (NO3-N) concentration numeric(6,3) milligrams per liter 0.001000 real 0.0000 0.3860 NO3NCODE_MO Monthly nitrate-nitrogen (NO3-N) value qualifier code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values Q* Monthly value includes questionable sample values; one or more values measured below the detection limit I* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values measured below the detection limit E* Monthly value includes estimated values; one or more values measured below the detection limit NA_MO Mean monthly sodium concentration numeric(6,2) milligrams per liter 0.010000 real 0.5100 5.5700 NACODE_MO Monthly sodium value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values * Monthly value includes one or more values measured below the detection limit K_MO Mean monthly potassium concentration numeric(6,2) milligrams per liter 0.030000 real 0.0000 8.0800 KCODE_MO Monthly potassium value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values * Monthly value includes one or more values measured below the detection limit CA_MO Mean monthly calcium concentration numeric(6,2) milligrams per liter 0.060000 real 0.5700 10.3000 CACODE_MO Monthly calcium value qualifier code char(1) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values IE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values estimated MG_MO Mean monthly magnesium concentration numeric(6,2) milligrams per liter 0.020000 real 0.3300 13.0300 MGCODE_MO Monthly magnesium value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values SO4S_MO Mean monthly sulfate-sulfur (SO4-S) concentration numeric(6,2) milligrams per liter 0.020000 real 0.0000 1.5000 SO4SCODE_MO Monthly sulfate-sulfur (SO4-S) value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values CL_MO Mean monthly chloride concentration numeric(6,2) milligrams per liter 0.010000 real 0.2200 9.4800 CLCODE_MO Monthly chloride value qualifier code char(2) A Accepted monthly value I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month E Monthly value includes estimated values DOC_MO Mean monthly dissolved organic carbon concentration numeric(6,2) milligrams per liter 0.050000 real 0.2500 4.2100 DOCCODE_MO Monthly dissolved organic carbon value qualifier code char(2) A Accepted monthly value I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values E Monthly value includes estimated values PRIMARY CF00202.SITECODE CF00202.YEAR CF00202.MONTH NOTNULL CF00202.STCODE CF00202.TYPE CF00202.SITECODE CF00202.ENTITY CF00202.WATERYEAR CF00202.YEAR CF00202.MONTH 4420 CF00203 Stream water nutrient mean annual concentrations Annual mean concentrations are calculated by weighting 3-week periods by streamflow CF00203_v6.csv 73523 6cd0658c9f9fc0938c8508ef8b254072 1 \r\n column , " https://andlter.forestry.oregonstate.edu/data/register/dataaccess.aspx?docid=CF00203_v6.csv 1968-10-01 2024-10-01 STCODE Study code char(5) CF002 Study code CF002 ENTITY Entity number numeric(1,0) number 1.000000 natural 3.0000 3.0000 SITECODE Gaging station site code char(6) GSWS01 Andrews Watershed 1 Gaging Station GSWS02 Andrews Watershed 2 Gaging Station GSWS06 Andrews Watershed 6 Gaging Station GSWS07 Andrews Watershed 7 Gaging Station GSWS08 Andrews Watershed 8 Gaging Station GSWS09 Andrews Watershed 9 Gaging Station GSWS10 Andrews Watershed 10 Gaging Station GSMACK Andrews Mack Creek Gaging Station GSLOOK Andrews Lookout Creek Gaging Station WATERYEAR Water year of sample or annual summary (October-September) numeric(4,0) number 1.000000 natural 1969.0000 2024.0000 Q_AREA_YR Total annual streamflow for the wateryear numeric(6,2) centimeters 0.250000 real 35.5500 290.2100 QCODE_YR Annual streamflow value qualifier code char(1) N No streamflow available for period E Total includes estimated streamflow values I Incomplete, parts of year missing from annual summary A Accepted value - all streamflow is included and not estimated for the wateryear P Fire effects may have impacted the data PH_YR Mean annual pH numeric(5,1) pH units 0.100000 real 5.5000 7.7000 PHCODE_YR Annual pH value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable COND_YR Mean annual specific conductivity concentration numeric(6,1) micro siemens per centimeter 0.400000 real 21.3700 72.1000 CONDCODE_YR Annual conductivity value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable ALK_YR Mean annual alkalinity concentration as CaCO3 (calcium carbonate). All units are now converted from HCO3-C (bi-carbonate) numeric(6,2) milligrams per liter 0.020000 real 10.4800 26.5000 ALKCODE_YR Annual alkalinity qualifier value code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable SSED_YR Mean annual suspended sediment concentratiom numeric(6,2) milligrams per liter 0.010000 real 0.4500 565.3200 SSEDCODE_YR Annual suspended sediment value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable SI_YR Mean annual silica concentration numeric(6,2) milligrams per liter 0.050000 real 3.1000 10.2000 SICODE_YR Annual silica value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable UTP_YR Mean annual unfiltered total phosphorus concentration numeric(6,3) milligrams per liter 0.002000 real 0.0090 0.1150 UTPCODE_YR Annual unfiltered total phosphorus value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable TDP_YR Mean annual total dissolved phosphorus concentration numeric(6,3) milligrams per liter 0.002000 real 0.0060 0.0800 TDPCODE_YR Annual total dissolved phosphorus value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable PARTP_YR Mean annual particulate P - not measured analytically; mathematically determined by subtraction of Total Dissolved P (TDP) from Unfiltered Total P (UTP) numeric(6,3) milligrams per liter 0.002000 real 0.0010 0.0940 PARTPCODE_YR Annual particulate P value qualifier code char(3) N No derived values are calculated for the entire water year D Annual value based on derived values D* Annual value based on derived values; one or more values measured below the detection limit DE Annual value based on derived values; one or more values estimated DQ Annual value based on derived values; one or more values questionable ID Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values ID* Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values measured below the detection limit IDE Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values are estimated IDQ Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values are questionable PO4P_YR Mean annual ortho phosphorus (PO4-P) concentration numeric(6,3) milligrams per liter 0.001000 real 0.0040 0.0430 PO4PCODE_YR Annual ortho phosphorus value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable UTN_YR Mean annual total nitrogen concentration (unfiltered samples) numeric(6,2) milligrams per liter 0.010000 real 0.0100 0.6000 UTNCODE_YR Annual unfiltered total nitrogen value qualifier code char(3) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit D Annual value based on derived values D* Annual value based on derived values; one or more values measured below the detection limit DE Annual value based on derived values; one or more values estimated DQ Annual value based on derived values; one or more values questionable I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit ID Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values ID* Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values measured below the detection limit IDE Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values are estimated IDQ Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values are questionable IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable TDN_YR Mean annual total dissolved nitrogen concentration numeric(6,2) milligrams per liter 0.010000 real 0.0100 0.2700 TDNCODE_YR Annual total dissolved nitrogen value qualifier code char(3) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit D Annual value based on derived values D* Annual value based on derived values; one or more values measured below the detection limit DE Annual value based on derived values; one or more values estimated DQ Annual value based on derived values; one or more values questionable I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit ID Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values ID* Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values measured below the detection limit IDE Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values are estimated IDQ Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values are questionable IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable DON_YR Mean annual dissolved organic N concentration - not measured analytically; mathematically determined by subtracting NH3-N and NO3-N from Total dissolved nitrogen. Values before May 2005 are determined by TKN minus NH3-N numeric(6,2) milligrams per liter 0.010000 real 0.0000 0.0700 DONCODE_YR Annual dissolved organic N value qualifier code char(3) N No derived values are calculated for the entire water year D Annual value based on derived values D* Annual value based on derived values; one or more values measured below the detection limit DE Annual value based on derived values; one or more values estimated DQ Annual value based on derived values; one or more values questionable ID Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values ID* Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values measured below the detection limit IDE Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values are estimated IDQ Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values are questionable PARTN_YR Mean annual particulate N concentration - not measured analytically; mathematically determined by subtraction of Total dissolved nitrogen (TDN) from Unfiltered Total nitrogen (UTN). Values before May 2005 are determined by UTKN minus TKN. numeric(6,2) milligrams per liter 0.010000 real 0.0000 0.5200 PARTNCODE_YR Annual particulate N value qualifier code char(3) N No derived values are calculated for the entire water year D Annual value based on derived values D* Annual value based on derived values; one or more values measured below the detection limit DE Annual value based on derived values; one or more values estimated DQ Annual value based on derived values; one or more values questionable ID Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values ID* Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values measured below the detection limit IDE Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values are estimated IDQ Annual value incomplete; one or more values are missing for part of the year; annual value based on derived values of which one or more values are questionable UTKN_YR Mean annual unfiltered total Kjeldahl nitrogen concentration numeric(6,2) milligrams per liter 0.010000 real 0.0200 0.5600 UTKNCODE_YR Annual unfiltered total Kjeldahl nitrogen value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable TKN_YR Mean annual total kjeldahl nitrogen concentration (dissolved) numeric(6,2) milligrams per liter 0.010000 real 0.0100 0.0700 TKNCODE_YR Annual total Kjeldahl nitrogen value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable NH3N_YR Mean annual ammonia (NH3-N) concentration numeric(6,3) milligrams per liter 0.003000 real 0.0000 0.0350 NH3NCODE_YR Annual NH3-N value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable NO3N_YR Mean annual nitrate-nitrogen (NO3-N) concentration numeric(6,3) milligrams per liter 0.001000 real 0.0000 0.1930 NO3NCODE_YR Annual NO3-N value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable NA_YR Mean annual sodium concentration numeric(6,2) milligrams per liter 0.010000 real 1.2800 3.2400 NACODE_YR Annual Na value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable K_YR Mean annual potassium concentration numeric(6,2) milligrams per liter 0.030000 real 0.0300 1.7500 KCODE_YR Annual K value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable CA_YR Mean annual calcium concentration numeric(6,2) milligrams per liter 0.060000 real 1.9900 6.1700 CACODE_YR Annual Ca value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable MG_YR Mean annual magnesium concentration numeric(6,2) milligrams per liter 0.020000 real 0.4300 3.2600 MGCODE_YR Annual Mg value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable SO4S_YR Mean annual SO4-S (sulfate-sulfur) concentration numeric(6,2) milligrams per liter 0.020000 real 0.0500 1.1800 SO4SCODE_YR Annual SO4-S value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable CL_YR Mean annual chloride concentration numeric(6,2) milligrams per liter 0.010000 real 0.5400 4.2200 CLCODE_YR Annual Cl value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable DOC_YR Mean annual dissolved organic carbon concentration numeric(6,2) milligrams per liter 0.050000 real 0.3800 2.8200 DOCCODE_YR Annual DOC value qualifier code char(2) N No analyses conducted in water year Q Annual value includes questionable sample values I Annual value incomplete; values are missing for part of the year and not included in annual summary E Annual value includes estimated values A Accepted annual value * Annual value includes one or more values measured below the detection limit I* Annual value incomplete; one or more values are missing for part of the year; one or more values measured below the detection limit IE Annual value incomplete; one or more values are missing for part of the year; one or more values estimated IQ Annual value incomplete; one or more values are missing for part of the year; one or more values questionable PRIMARY CF00203.SITECODE CF00203.WATERYEAR NOTNULL CF00203.STCODE CF00203.SITECODE CF00203.ENTITY CF00203.WATERYEAR 372 CF00204 Stream water nutrient monthly outflow (kg/ha) Data are calculated outflow fluxes for each mean monthly concentration value interpolated from the 3-week sampling data CF00204_v6.csv 838768 17c0263ac15d3a1fa101476f2141f2ea 1 \r\n column , " https://andlter.forestry.oregonstate.edu/data/register/dataaccess.aspx?docid=CF00204_v6.csv 1968-10-01 2024-09-01 STCODE Study code char(5) CF002 Study code CF002 ENTITY Entity number numeric(1,0) number 1.000000 natural 4.0000 4.0000 SITECODE Gaging station site code char(6) GSWS01 Andrews Watershed 1 Gaging Station GSWS02 Andrews Watershed 2 Gaging Station GSWS06 Andrews Watershed 6 Gaging Station GSWS07 Andrews Watershed 7 Gaging Station GSWS08 Andrews Watershed 8 Gaging Station GSWS09 Andrews Watershed 9 Gaging Station GSWS10 Andrews Watershed 10 Gaging Station GSMACK Andrews Mack Creek Gaging Station GSLOOK Andrews Lookout Creek Gaging Station WATERYEAR Water year of sample or annual summary (October-September) numeric(4,0) number 1.000000 natural 1969.0000 2024.0000 YEAR Calendar year of annual or monthly summary numeric(4,0) number 1.000000 natural 1968.0000 2024.0000 MONTH Month of summary numeric(2,0) number 1.000000 natural 1.0000 12.0000 TYPE Sample type indicator char(2) QB Quality control samples taken below turbulence box QS Quality control sample taken through sampler QL Quality control sample taken through sampler and left in gage house until next collection QA Quality control sample taken above flume C Sample combined with preceeding saved sample(s) for analysis G Grab sample taken in lieu of proportional sample S Sample saved to combine with following collection (type 'C') due to insufficient water. Nutrient concentrations of the following stream water sample are used to determine fluxes for this period. N No sample is collected for this period F Complete, full sample. Sampler operational throughout sampling period. YE Year end marker allows summary by water year - this is not a sample. Flux values are calculated from streamflow ending Sep 30 and use analyte concentrations from the following sample. 'Y' markers are inserted every Sep30 A Augmented sample - grab sample added to insufficient proportional sample (rarely used after 1987) P Partial sample - proportional sampler did not operate successfully over entire period B Biased sample - consecutive samples are proportionally separated and combined based on streamflow - code use begins WY 2008 to approx. two 3-week sampling intervals (where one sample is for 4 wks and the next for 2 wks) Q_AREA_MO Total monthly streamflow over watershed area numeric(6,2) centimeters 0.250000 real 0.0300 82.5500 QCODE_MO Monthly streamflow value qualifier code char(1) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values P Fire effects may have impacted the data ALK_OUT_MO Total monthly alkalinity outflow as CaCO3 (calcium carbonate). All units are now converted from HCO3-C (bi-carbonate) numeric(6,2) kilograms per hectare 0.050000 real 0.0700 124.3300 ALKCODE_MO Monthly alkalinity qualifier value code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values SSED_OUT_MO Total monthly suspended sediment outflow numeric(8,2) kilograms per hectare 0.050000 real 0.0000 12536.3496 SSEDCODE_MO Monthly suspended sediment value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values SI_OUT_MO Total monthly silica outflow numeric(6,2) kilograms per hectare 0.050000 real 0.0300 67.6500 SICODE_MO Monthly silica value qualifier code char(2) A Accepted monthly value I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values IQ Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values questionable E Monthly value includes estimated values EQ Monthly value includes estimated values; one or more values were questionable UTP_OUT_MO Total monthly unfiltered total phosphorus outflow numeric(5,3) kilograms per hectare 0.005000 real 0.0000 2.5200 UTPCODE_MO Monthly unfiltered total phosphorus value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values IE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values estimated TDP_OUT_MO Total monthly total dissolved phosphorus outflow numeric(5,3) kilograms per hectare 0.005000 real 0.0000 0.5200 TDPCODE_MO Monthly total dissolved phosphorus value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values * Monthly value includes one or more values measured below the detection limit PO4P_OUT_MO Total monthly ortho phosphorus (PO4-P) outflow numeric(5,3) kilograms per hectare 0.005000 real 0.0000 0.2600 PO4PCODE_MO Monthly ortho phosphorus (PO4-P) value qualifier code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values PARTP_OUT_MO Total monthly particulate P outflow - not measured analytically; mathematically determined by subtraction of Total Dissolved P (TDP) from Unfiltered Total P (UTP) numeric(5,3) kilograms per hectare 0.005000 real 0.0000 2.4400 PARTPCODE_MO Monthly particulate P value qualifier code char(3) D Monthly value based on derived values DE Monthly value based on derived values; one or more values estimated DQ Monthly value based on derived values; one or more values questionable ID Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values IDE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values are estimated N No analyses conducted for proportional samples taken during the month UTN_OUT_MO Total monthly total nitrogen outflow (unfiltered sample) numeric(5,2) kilograms per hectare 0.010000 real 0.0000 14.8500 UTNCODE_MO Monthly unfiltered total nitrogen value qualifier code char(3) * Monthly value includes one or more values measured below the detection limit D Monthly value based on derived values D* Monthly value based on derived values; one or more values measured below the detection limit DE Monthly value based on derived values; one or more values estimated DQ Monthly value based on derived values; one or more values questionable DQ* Monthly value based on derived values; one or more values questionable; one or more values measured below the detection limit I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary ID Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values ID* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values measured below the detection limit IDE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values are estimated N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values E Monthly value includes estimated values DE* Monthly value based on derived values; one or more values estimated; one or more values measured below the detection limit Q* Monthly value includes questionable sample values; one or more values measured below the detection limit A Accepted monthly value I* Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary; one or more values measured below the detection limit E* One or more values estimated; one or more values measured below the detection limit TDN_OUT_MO Total monthly total dissolved nitrogen outflow (filtered sample) numeric(5,2) kilograms per hectare 0.010000 real 0.0000 1.4800 TDNCODE_MO Monthly total dissolved nitrogen value qualifier code char(3) * Monthly value includes one or more values measured below the detection limit D Monthly value based on derived values D* Monthly value based on derived values; one or more values measured below the detection limit DE Monthly value based on derived values; one or more values estimated DQ Monthly value based on derived values; one or more values questionable DQ* Monthly value based on derived values; one or more values questionable; one or more values measured below the detection limit I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary ID Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values ID* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values measured below the detection limit IDE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values are estimated N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values E Monthly value includes estimated values DE* Monthly value based on derived values; one or more values estimated; one or more values measured below the detection limit Q* Monthly value includes questionable sample values; one or more values measured below the detection limit A Accepted monthly value I* Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary; one or more values measured below the detection limit E* One or more values estimated; one or more values measured below the detection limit DON_OUT_MO Total monthly dissolved organic N outflow - not measured analytically; mathematically determined by subtracting NH3-N and NO3-N from Total dissolved nitrogen. Values before May 2005 are determined by TKN minus NH3-N numeric(5,2) kilograms per hectare 0.010000 real 0.0000 0.4400 DONCODE_MO Monthly dissolved organic N value qualifier code char(3) D Monthly value based on derived values D* Monthly value based on derived values; one or more values measured below the detection limit DE Monthly value based on derived values; one or more values estimated DQ Monthly value based on derived values; one or more values questionable DQ* Monthly value based on derived values; one or more values questionable; one or more values measured below the detection limit ID Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values ID* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values of which one or more values measured below the detection limit N No analyses conducted for proportional samples taken during the month DE* Monthly value based on derived values; one or more values estimated; one or more values measured below the detection limit PARTN_OUT_MO Total monthly particulate N outflow - not measured analytically; mathematically determined by subtraction of Total dissolved nitrogen (TDN) from Unfiltered Total nitrogen (UTN). Values before May 2005 are determined by UTKN minus TKN. numeric(5,2) kilograms per hectare 0.010000 real 0.0000 14.2900 PARTNCODE_MO Monthly particulate N value qualifier code char(3) D Monthly value based on derived values D* Monthly value based on derived values; one or more values measured below the detection limit DE Monthly value based on derived values; one or more values estimated DQ Monthly value based on derived values; one or more values questionable ID Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values N No analyses conducted for proportional samples taken during the month DQ* Monthly value based on derived values; one or more values questionable; one or more values measured below the detection limit ID* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values; one or more values measured below the detection limit DE* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; monthly value based on derived values; one or more values estimated UTKN_OUT_MO Total monthly unfiltered total Kjeldahl nitrogen outflow numeric(5,2) kilograms per hectare 0.010000 real 0.0000 14.6700 UTKNCODE_MO Monthly unfiltered total Kjeldahl nitrogen value qualifier code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values TKN_OUT_MO Total monthly total Kjeldahl nitrogen (dissolved) outflow numeric(5,2) kilograms per hectare 0.010000 real 0.0000 0.4700 TKNCODE_MO Monthly total Kjeldahl nitrogen (dissolved) value qualifier code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values NH3N_OUT_MO Total monthly ammonia-nitrogen (NH3-N) outflow numeric(5,3) kilograms per hectare 0.005000 real 0.0000 0.3700 NH3NCODE_MO Monthly ammonia-nitrogen (NH3-N) value qualifier code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q* Monthly value includes questionable sample values; one or more values measured below the detection limit I* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values measured below the detection limit E* Monthly value includes estimated values; one or more values measured below the detection limit NO3N_OUT_MO Total monthly nitrate-nitrogen (NO3-N) outflow numeric(5,3) kilograms per hectare 0.005000 real 0.0000 1.3000 NO3NCODE_MO Monthly nitrate-nitrogen (NO3-N) value qualifier code char(2) A Accepted monthly value * Monthly value includes one or more values measured below the detection limit E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values Q* Monthly value includes questionable sample values; one or more values measured below the detection limit I* Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values measured below the detection limit E* Monthly value includes estimated values; one or more values measured below the detection limit NA_OUT_MO Total monthly sodium outflow numeric(5,2) kilograms per hectare 0.020000 real 0.0100 15.0000 NACODE_MO Monthly sodium value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values * Monthly value includes one or more values measured below the detection limit K_OUT_MO Total monthly potassium outflow numeric(5,2) kilograms per hectare 0.020000 real 0.0000 33.2100 KCODE_MO Monthly potassium value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values * Monthly value includes one or more values measured below the detection limit CA_OUT_MO Total monthly calcium outflow numeric(5,2) kilograms per hectare 0.060000 real 0.0100 25.0800 CACODE_MO Monthly calcium value qualifier code char(1) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values IE Monthly value incomplete - only 6-25 days are proportionally sampled in the month; one or more values estimated MG_OUT_MO Total monthly magnesium outflow numeric(5,2) kilograms per hectare 0.020000 real 0.0000 16.9400 MGCODE_MO Monthly magnesium value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values SO4S_OUT_MO Total monthly sulfate-sulfur (SO4-S) outflow numeric(6,2) kilograms per hectare 0.020000 real 0.0000 2.6100 SO4SCODE_MO Monthly sulfate-sulfur (SO4-S) value qualifier code char(2) A Accepted monthly value E Monthly value includes estimated values I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values CL_OUT_MO Total monthly chloride outflow numeric(6,2) kilograms per hectare 0.020000 real 0.0000 9.2600 CLCODE_MO Monthly chloride value qualifier code char(2) A Accepted monthly value I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month E Monthly value includes estimated values DOC_OUT_MO Total monthly dissolved organic carbon outflow numeric(5,2) kilograms per hectare 0.020000 real 0.0000 11.0500 DOCCODE_MO Monthly dissolved organic carbon value qualifier code char(2) A Accepted monthly value I Monthly value incomplete - at least 5 days available, but 25 or fewer days available for month summary N No analyses conducted for proportional samples taken during the month Q Monthly value includes questionable sample values E Monthly value includes estimated values PRIMARY CF00204.SITECODE CF00204.YEAR CF00204.MONTH NOTNULL CF00204.STCODE CF00204.TYPE CF00204.SITECODE CF00204.ENTITY CF00204.WATERYEAR CF00204.YEAR CF00204.MONTH 4420 CF00205 Stream water nutrient outflow (kg/ha) for each proportional sampling interval Data are calculated outflow fluxes for each proportional sample period. Alternatively, please consider use of monthly outflow fluxes provided in entity 4. CF00205_v5.csv 1423529 7c0765463f70f1320b5bb0a023937e3b 1 \r\n column , " https://andlter.forestry.oregonstate.edu/data/register/dataaccess.aspx?docid=CF00205_v5.csv 1968-10-01 2024-10-01 STCODE Study code char(5) CF002 Study code CF002 ENTITY Entity number numeric(1,0) number 1.000000 natural 5.0000 5.0000 SITECODE Gaging station site code char(6) GSWS01 Andrews Watershed 1 Gaging Station GSWS02 Andrews Watershed 2 Gaging Station GSWS06 Andrews Watershed 6 Gaging Station GSWS07 Andrews Watershed 7 Gaging Station GSWS08 Andrews Watershed 8 Gaging Station GSWS09 Andrews Watershed 9 Gaging Station GSWS10 Andrews Watershed 10 Gaging Station GSMACK Andrews Mack Creek Gaging Station GSLOOK Andrews Lookout Creek Gaging Station WATERYEAR Water year of sample or annual summary (October-September) numeric(4,0) number 1.000000 natural 1969.0000 2024.0000 DATE_TIME Collection date and time (PST) of the stream water sample - sample collected proportionally to streamflow from the previous sample date and time. Assume beginning date of first sample period for each collector is October 1st. datetime YYYY-MM-DD hh:mm:ss 60.000000 10/9/1968 12:00:00 PM 10/1/2024 12:00:00 AM LABNO Lab number code for sample char(4) Lab number code for sample TYPE Sample type indicator char(2) QB Quality control samples taken below turbulence box QS Quality control sample taken through sampler QL Quality control sample taken through sampler and left in gage house until next collection QA Quality control sample taken above flume C Sample combined with preceeding saved sample(s) for analysis G Grab sample taken in lieu of proportional sample S Sample saved to combine with following collection (type 'C') due to insufficient water. Nutrient concentrations of the following stream water sample are used to determine fluxes for this period. N No sample is collected for this period F Complete, full sample. Sampler operational throughout sampling period. YE Year end marker allows summary by water year - this is not a sample. Flux values are calculated from streamflow ending Sep 30 and use analyte concentrations from the following sample. 'Y' markers are inserted every Sep30 A Augmented sample - grab sample added to insufficient proportional sample (rarely used after 1987) P Partial sample - proportional sampler did not operate successfully over entire period B Biased sample - consecutive samples are proportionally separated and combined based on streamflow - code use begins WY 2008 to approx. two 3-week sampling intervals (where one sample is for 4 wks and the next for 2 wks) Q_AREA_CM Streamflow in cm for the time interval represented by the proportional sample numeric(6,2) centimeters 0.025000 real 0.0000 116.3100 QCODE Streamflow value qualifier code char(1) A Accepted value for streamflow N No streamflow available for period E Estimated streamflow value P Fire effects may have impacted the data Q Streamflow value for the period is questionable ALK_OUTPUT Alkalinity outflow as CaCO3 (calcium carbonate) numeric(6,2) kilograms per hectare 0.050000 real 0.0000 115.7000 ALKCODE Alkalinity value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) SSED_OUTPUT Suspended sediment outflow numeric(7,2) kilograms per hectare 0.050000 real 0.0000 9467.0000 SSEDCODE Suspended sediment value qualifier code char(1) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) SI_OUTPUT Silica outflow numeric(6,2) kilograms per hectare 0.050000 real 0.0000 56.1200 SICODE Silica value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) UTP_OUTPUT Unfiltered total phosphorus outflow numeric(5,3) kilograms per hectare 0.005000 real 0.0000 1.8920 UTPCODE Unfiltered total phosphorus value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination suspected (code use begins May 2011) TDP_OUTPUT Total dissolved phosphorus outflow numeric(5,3) kilograms per hectare 0.005000 real 0.0000 0.4070 TDPCODE Total dissolved phosphorus value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination suspected (code use begins May 2011) PARTP_OUTPUT Particulate P outflow - not measured analytically; mathematically determined by subtraction of Total Dissolved P (TDP) from Unfiltered Total P (UTP) numeric(5,3) kilograms per hectare 0.005000 real 0.0000 1.8360 PARTPCODE Particulate P value qualifier code char(2) N No derived value is calculated due to missing analytical components D Derived value - mathematically determined from other analytical measurements D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values PO4P_OUTPUT Ortho phosphorus (PO4-P) outflow numeric(5,3) kilograms per hectare 0.005000 real 0.0000 0.2130 PO4PCODE Ortho phosphorus value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination suspected (code use begins May 2011) UTN_OUTPUT Total nitrogen outflow (unfiltered sample) numeric(5,2) kilograms per hectare 0.010000 real 0.0000 11.1800 UTNCODE Unfiltered total nitrogen value qualifier code char(2) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value Q Value is questionable (used beginning in 1991) D Derived value - mathematically determined from other analytical measurements D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values N No analytical measurement or no derived value calculated due to missing analytical components C Value confirmed, contamination suspected (code use begins May 2011) TDN_OUTPUT Total dissolved nitrogen outflow (filtered sample) numeric(5,2) kilograms per hectare 0.010000 whole 0.0000 1.5500 TDNCODE Total dissolved nitrogen value qualifier code char(2) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value Q Value is questionable (used beginning in 1991) D Derived value - mathematically determined from other analytical measurements D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values N No analytical measurement or no derived value calculated due to missing analytical components C Value confirmed, contamination suspected (code use begins May 2007) DON_OUTPUT Dissolved organic N outflow - not measured analytically; mathematically determined by subtracting NH3-N and NO3-N from Total dissolved nitrogen. Values before May 2005 are determined by TKN minus NH3-N numeric(5,2) kilograms per hectare 0.010000 real 0.0000 0.3100 DONCODE Dissolved organic nitrogen value qualifier code char(2) N No derived value is calculated due to missing analytical components D Derived value - mathematically determined from other analytical measurements D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values DC Derived value confirmed, contamination suspected (code use begins May 2007) PARTN_OUTPUT Particulate N outflow - not measured analytically; mathematically determined by subtraction of Total dissolved nitrogen (TDN) from Unfiltered Total nitrogen (UTN). Values before May 2005 are determined by UTKN minus TKN. numeric(5,2) kilograms per hectare 0.010000 real 0.0000 10.7800 PARTNCODE Particulate N value qualifier code char(2) N No derived value is calculated due to missing analytical components D Derived value - mathematically determined from other analytical measurements D* Derived value - mathematically determined from other analytical measurements, one or more of which were below the detection limit DE Derived value - mathematically determined from other analytical measurements, one or more of which were estimated values DQ Derived value - mathematically determined from other analytical measurements, one or more of which were questionable values DC Derived value confirmed, contamination suspected (code use begins May 2007) UTKN_OUTPUT Unfiltered total Kjeldahl nitrogen outflow numeric(5,2) kilograms per hectare 0.010000 real 0.0000 11.0600 UTKNCODE Unfiltered total Kjeldahl nitrogen value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) TKN_OUTPUT Total Kjeldahl nitrogen (dissolved) outflow numeric(5,2) kilograms per hectare 0.010000 real 0.0000 0.3200 TKNCODE Total Kjeldahl nitrogen value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) NH3N_OUTPUT Ammonia-nitrogen (NH3-N) outflow numeric(5,3) kilograms per hectare 0.005000 real 0.0000 0.2750 NH3NCODE NH3-N value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination suspected (code use begins May 2007) NO3N_OUTPUT Nitrate-nitrogen (NO3-N) outflow numeric(5,3) kilograms per hectare 0.005000 real 0.0000 1.3490 NO3NCODE NO3-N value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination suspected (code use begins May 2011) NA_OUTPUT Sodium outflow numeric(5,2) kilograms per hectare 0.020000 real 0.0000 13.2400 NACODE Na value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) K_OUTPUT Potassium outflow numeric(5,2) kilograms per hectare 0.020000 real 0.0000 33.0100 KCODE K value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) CA_OUTPUT Calcium outflow numeric(5,2) kilograms per hectare 0.060000 real 0.0000 21.8200 CACODE Ca value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) MG_OUTPUT Magnesium outflow numeric(5,2) kilograms per hectare 0.020000 real 0.0000 15.0600 MGCODE Mg value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) SO4S_OUTPUT SO4-S (sulfate-sulfur) outflow numeric(6,2) kilograms per hectare 0.020000 real 0.0000 2.9100 SO4SCODE SO4-S value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) CL_OUTPUT Chloride outflow numeric(6,2) kilograms per hectare 0.020000 real 0.0000 9.0900 CLCODE Cl value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) C Value confirmed, contamination or experimental tracer suspected (code use begins May 2007) DOC_OUTPUT Dissolved organic carbon outflow numeric(5,2) kilograms per hectare 0.020000 real 0.0000 11.8300 DOCCODE DOC value qualifier code char(1) * Value is below detection limit for analysis (used beginning in 1991) A Accepted value E Estimated value N No analytical measurement Q Value is questionable (used beginning in 1991) PRIMARY CF00205.SITECODE CF00205.DATE_TIME NOTNULL CF00205.STCODE CF00205.TYPE CF00205.SITECODE CF00205.ENTITY CF00205.WATERYEAR CF00205.DATE_TIME 6921 CF00206 Stream water sample log sheet: field and laboratory comments Field and lab comments CF00206_v9.csv 720517 cda338046b75e758d720768e18ae9435 1 \r\n column , " https://andlter.forestry.oregonstate.edu/data/register/dataaccess.aspx?docid=CF00206_v9.csv 1968-10-09 2025-01-08 STCODE Study code char(5) CF002 Study code CF002 ENTITY Entity number numeric(1,0) number 1.000000 natural 6.0000 6.0000 SITECODE Gaging station site code char(6) GSWS01 Andrews Watershed 1 Gaging Station GSWS02 Andrews Watershed 2 Gaging Station GSWS06 Andrews Watershed 6 Gaging Station GSWS07 Andrews Watershed 7 Gaging Station GSWS08 Andrews Watershed 8 Gaging Station GSWS09 Andrews Watershed 9 Gaging Station GSWS10 Andrews Watershed 10 Gaging Station GSMACK Andrews Mack Creek Gaging Station GSLOOK Andrews Lookout Creek Gaging Station WATERYEAR Water year of sample or annual summary (October-September) numeric(4,0) number 1.000000 natural 1969.0000 2025.0000 DATE_TIME Collection date and time (PST) of the stream water sample - sample collected proportionally to streamflow from the previous sample date and time. Assume beginning date of first sample period for each collector is October 1st. datetime YYYY-MM-DD hh:mm:ss 60.000000 10/9/1968 12:00:00 PM 1/8/2025 10:40:00 AM LABNO Lab number code for sample char(4) Lab number code for sample TYPE Sample type indicator char(2) QB Quality control samples taken below turbulence box QS Quality control sample taken through sampler QL Quality control sample taken through sampler and left in gage house until next collection QA Quality control sample taken above flume C Sample combined with preceeding saved sample(s) for analysis G Grab sample taken in lieu of proportional sample S Sample saved to combine with following collection (type 'C') due to insufficient water. Nutrient concentrations of the following stream water sample are used to determine fluxes for this period. N No sample is collected for this period F Complete, full sample. Sampler operational throughout sampling period. YE Year end marker allows summary by water year - this is not a sample. Flux values are calculated from streamflow ending Sep 30 and use analyte concentrations from the following sample. 'Y' markers are inserted every Sep30 A Augmented sample - grab sample added to insufficient proportional sample (rarely used after 1987) P Partial sample - proportional sampler did not operate successfully over entire period B Biased sample - consecutive samples are proportionally separated and combined based on streamflow - code use begins WY 2008 to approx. two 3-week sampling intervals (where one sample is for 4 wks and the next for 2 wks) QCCODE Quality control sample codes are assigned to samples collected for examining integrity of proportional sample analysis char(2) NA Water sample is not a quality control sample QA Quality control water sample taken above the flume QB Quality control water sample taken below the turbulence box QL Quality control water sample taken through the sampler and left in the gage house until the next collection QS Quality control water sample taken through the sampler QZ Additional or miscellaneous quality control water sample QA_SAMPLE Quality assurance sample number assigned if sample water is further analyzed for internal laboratory purposes char(6) Quality assurance sample number assigned if sample water is further analyzed for internal laboratory purposes SAMPLER_TYPE Type of water sampler or method used to collect water char(2) GR Grab sample taken manually from the flume RI Instantaneous sample collected through the battery-powered proportional water sampler RM Proportional water sample taken through the battery-powered proportional water sampler with reed switch assembly and mechanical timer RS Proportional water sample taken through the battery-powered proportional water sampler with reed switch assembly and solid state time and circuit board SG Proportional water sample taken through Sigma sampler with timing controlled by a Campbell Scientific data logger SI Instantaneous water sample taken through Sigma sampler LOW_VOLUME Indicator of a low volume sampler that may restrict the breadth of laboratory analyses char(1) N Sample is of sufficient volume for laboratory analyses Y Sample is low volume and laboratory analyses may be limited FIELD_COMMENTS Field comments related to the collection of the water sample char(254) Field comments related to the collection of the water sample LAB_COMMENTS Laboratory comments related to the handling and analyses of the sample char(254) Laboratory comments related to the handling and analyses of the sample SEQ_INDEX Sequential index generated primarily by the temporal order in which samples are collected numeric(5,0) number 1.000000 natural 1.0000 10196.0000 PRIMARY CF00206.SITECODE CF00206.DATE_TIME NOTNULL CF00206.STCODE CF00206.TYPE CF00206.SITECODE CF00206.ENTITY CF00206.WATERYEAR CF00206.DATE_TIME CF00206.QCCODE CF00206.SAMPLER_TYPE CF00206.LOW_VOLUME CF00206.SEQ_INDEX 6748 kilograms; SI unit of mass liters per second micro Siemens per centimeter Scale used for pH measurements milligrams per liter centimeters; .01 meters kilograms per hectare dimensionless number, i.e., ratio, count