Data Validation Report
Yellowstone National Park Water Quality Monitoring
Greater Yellowstone Inventory and Monitoring Network
Data Collected: January 2008 – December 2008
Prepared by: Jeff Arnold
and
Derek Rupert
Introduction
Data validation is the process used to qualify data, reject it, or accept it with no
conditions or qualifications. During the validation review, any deviations from SOPs
must be documented and their potential effect on the usability and quality of the
monitoring data must be evaluated and discussed. This report provides a narrative
evaluation and summary of the data collected during the 2008 calendar year at
Yellowstone National Park and includes data for 19 stations, 186 site visits, 453
activities, and 5,309 results for drainages and stations specified below.
Madison River Drainage- Station ID
Firehole River at Madison Junction – YELL_FH001.8C
Includes 12 visits, 15 activities, and 360 results
Gibbon River at Madison Junction – YELL_GB000.2M
Includes12 visits, 12 activities, and 312 results
Madison River at West Yellowstone – YELL_MD133.2T
Includes 12 visits, 15 activities, and 358 results
Yellowstone River Drainage-
Gardner River at Rescue Creek trail crossing – YELL_GN002.9M Includes 12 visits, 21 activities, and 441 results
Lamar River at Tower Junction – YELL_LM000.5M
Includes 12 visits, 12 activities, and 328 results
Soda Butte Creek near Silver Gate, MT – YELL_SB015.7A Includes 16 visits, 29 activities, and 649 results
Soda Butte Creek at Buffalo Ranch – YELL_SB001.5M
Includes 12 visits, 12 activities, and 317 results
Pelican Creek at Lake – YELL_PC000.4M
Includes 11 visits, 14 activities, and 326 results
Yellowstone River at Fishing Bridge – YELL_YS616.4M Includes 10 visits, 10 activities, and 220 results
Yellowstone River at Canyon – YELL_YS600.5M
Includes 11 visits, 11 activities, and 125 results
Yellowstone River at Corwin Springs – YELL_YS549.7M
Includes12 visits, 18 activities, and 404 results
Yellowstone Lake at Signal Point - YELL_YL001.0M
Includes 4 visits, 4 activities, and 52 results
Yellowstone Lake at Dot Island – YELL_YL002.0M Includes 4 visits, 10 activities, and 91 results
Yellowstone Lake at West Thumb – YELL_YL003.0M Includes 4 visits, 131 activities and 536 results
Yellowstone Lake at Stevenson Island – YELL_YL004.0M
Includes 4 visits, 7 activities, and 71 results
Yellowstone Lake at Mary Bay – YELL_YL005.0M
Includes4 visits, 4 activities, and 52 results
Yellowstone Lake at Southeast Arm – YELL_YL006.0M
Includes 4 visits, 4 activities, and 52 results
Yellowstone Lake at South Arm – YELL_YL007.0M
Includes 4 visits,116 activities, and 500 results
Snake River Drainage-
Snake River at Flagg Ranch – YELL_SN999.9M
Includes 8 visits, 8 activities, and 95 results
Sample Collection and Handling Procedures
For all sites raw conductivity was not measured and reported. The Hydrolab
multiparameter units are not able to capture both specific conductance and raw
conductivity values; therefore raw conductivity was omitted from the data set.
Deviations from the protocols were also recorded for all sites that are sampled from a
bridge and include the Gibbon River, Pelican Creek, Gardner River, lower Soda Butte,
Lamar River, and the 3 sites on the Yellowstone River. In these cases a 5 gallon plastic
bucket was used to collect the water sample by being lowered down from the bridge. For
each site visit the sample container was rinsed out several times with native stream water.
The bucket was equipped with a screw-on lid (also washed with native stream water) so
air-borne sample contamination was eliminated. The DH-81 sampler, as stated in the
protocols, is not well suited for larger streams and rivers. A sampler that is better suited
for larger, deeper rivers include the DH-59 or the DH-76. Incorporating these types of
samplers should be investigated for use on the larger streams.
Field QA/QC Procedures and Results
A split sample was taken at a minimum of 10 percent of all samples collected during each
sample week. The split sample is a collection of water that was split to provide 2
separate samples for analysis of selected water quality parameters. As far as chemical
composition, split samples should be very similar, if not identical, to the routine sample.
For QA/QC samples there is a requirement of a relative percent difference (RPD) of 15%
or less for all chemical samples; that is 15% or less difference between the routine and
split samples for a specific analysis. For the stream data all samples met the 15% criteria
except the following: Regulatory samples – dissolved iron- 1 sample exceeded the RPD
at SB015.7 A (16 Sep). Non-regulatory samples – 1) turbidity – 2 samples exceeded the
RPD at YELL_SB015.7A (16 Sep), and YELL_YL004.0M (5 (Aug); 2) total suspended
solids – nine samples exceeded the RPD value at YELL_FH001.8C (15 May),
YELL_GN002.9M (17 Jan and 01 Oct), YELL_PC000.4M 10 Jul), YELL_SB015.7A
(10 Jun and 16 Sep), YELL_YL002.0
Data Validation ReportYellowstone National Park Water Quality MonitoringGreater Yellowstone Inventory and Monitoring NetworkData Collected: January 2008 – December 2008Prepared by: Jeff ArnoldandDerek Rupert IntroductionData validation is the process used to qualify data, reject it, or accept it with noconditions or qualifications. During the validation review, any deviations from SOPsmust be documented and their potential effect on the usability and quality of themonitoring data must be evaluated and discussed. This report provides a narrativeevaluation and summary of the data collected during the 2008 calendar year atYellowstone National Park and includes data for 19 stations, 186 site visits, 453activities, and 5,309 results for drainages and stations specified below.Madison River Drainage- Station ID Firehole River at Madison Junction – YELL_FH001.8C Includes 12 visits, 15 activities, and 360 results Gibbon River at Madison Junction – YELL_GB000.2M Includes12 visits, 12 activities, and 312 results Madison River at West Yellowstone – YELL_MD133.2T Includes 12 visits, 15 activities, and 358 resultsYellowstone River Drainage- Gardner River at Rescue Creek trail crossing – YELL_GN002.9M Includes 12 visits, 21 activities, and 441 results Lamar River at Tower Junction – YELL_LM000.5M Includes 12 visits, 12 activities, and 328 results Soda Butte Creek near Silver Gate, MT – YELL_SB015.7A Includes 16 visits, 29 activities, and 649 results Soda Butte Creek at Buffalo Ranch – YELL_SB001.5M Includes 12 visits, 12 activities, and 317 results Pelican Creek at Lake – YELL_PC000.4M Includes 11 visits, 14 activities, and 326 results Yellowstone River at Fishing Bridge – YELL_YS616.4M Includes 10 visits, 10 activities, and 220 results Yellowstone River at Canyon – YELL_YS600.5M Includes 11 visits, 11 activities, and 125 results Yellowstone River at Corwin Springs – YELL_YS549.7M Includes12 visits, 18 activities, and 404 results Yellowstone Lake at Signal Point - YELL_YL001.0M Includes 4 visits, 4 activities, and 52 results Yellowstone Lake at Dot Island – YELL_YL002.0M Includes 4 visits, 10 activities, and 91 results Yellowstone Lake at West Thumb – YELL_YL003.0M Includes 4 visits, 131 activities and 536 results Yellowstone Lake at Stevenson Island – YELL_YL004.0M Includes 4 visits, 7 activities, and 71 results Yellowstone Lake at Mary Bay – YELL_YL005.0M Includes4 visits, 4 activities, and 52 results Yellowstone Lake at Southeast Arm – YELL_YL006.0M Includes 4 visits, 4 activities, and 52 results Yellowstone Lake at South Arm – YELL_YL007.0M Includes 4 visits,116 activities, and 500 resultsSnake River Drainage- Snake River at Flagg Ranch – YELL_SN999.9M Includes 8 visits, 8 activities, and 95 results Sample Collection and Handling ProceduresFor all sites raw conductivity was not measured and reported. The Hydrolabmultiparameter units are not able to capture both specific conductance and rawconductivity values; therefore raw conductivity was omitted from the data set.Deviations from the protocols were also recorded for all sites that are sampled from abridge and include the Gibbon River, Pelican Creek, Gardner River, lower Soda Butte,Lamar River, and the 3 sites on the Yellowstone River. In these cases a 5 gallon plasticbucket was used to collect the water sample by being lowered down from the bridge. Foreach site visit the sample container was rinsed out several times with native stream water.The bucket was equipped with a screw-on lid (also washed with native stream water) soair-borne sample contamination was eliminated. The DH-81 sampler, as stated in theprotocols, is not well suited for larger streams and rivers. A sampler that is better suitedfor larger, deeper rivers include the DH-59 or the DH-76. Incorporating these types ofsamplers should be investigated for use on the larger streams.Field QA/QC Procedures and ResultsA split sample was taken at a minimum of 10 percent of all samples collected during eachsample week. The split sample is a collection of water that was split to provide 2separate samples for analysis of selected water quality parameters. As far as chemicalcomposition, split samples should be very similar, if not identical, to the routine sample.For QA/QC samples there is a requirement of a relative percent difference (RPD) of 15%or less for all chemical samples; that is 15% or less difference between the routine andsplit samples for a specific analysis. For the stream data all samples met the 15% criteriaexcept the following: Regulatory samples – dissolved iron- 1 sample exceeded the RPDat SB015.7 A (16 Sep). Non-regulatory samples – 1) turbidity – 2 samples exceeded theRPD at YELL_SB015.7A (16 Sep), and YELL_YL004.0M (5 (Aug); 2) total suspendedsolids – nine samples exceeded the RPD value at YELL_FH001.8C (15 May),YELL_GN002.9M (17 Jan and 01 Oct), YELL_PC000.4M 10 Jul), YELL_SB015.7A(10 Jun and 16 Sep), YELL_YL002.0
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