Water Quality in the Yakima River Basin, Washington, 1999-2000

Fuhrer, Gregory J.; Morace, Jennifer L.; Johnson, Henry M.; Rinella, Joseph F.; Ebbert, J.C.; Embrey, S.S.; Waite, Ian R.; Carpenter, Kurt D.; Wise, Daniel R.; Hughes, Curt A.

doi:10.3133/cir1237

Cited by 21 publications

(21 citation statements)

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“…Contaminants can enter the lower Columbia River from many sources, including municipal and industrial permitted discharges, atmospheric deposition, urban and industrial nonpoint pollution, and runoff from agricultural and forested areas (Fuhrer et al, 1996;LCREP, 2007). In addition to inputs from the lower Columbia region, contaminants may also be transported to the lower river from areas of known contamination above Bonneville Dam, e.g., the Yakima (Fuhrer et al, 2004) and Snake (Clark et al, 1998) Rivers.…”

Section: Site Descriptionmentioning

confidence: 99%

Contaminants of legacy and emerging concern in largescale suckers (Catostomus macrocheilus) and the foodweb in the lower Columbia River, Oregon and Washington, USA

Nilsen

Zaugg

Alvarez

et al. 2014

Science of The Total Environment

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Section: Site Descriptionmentioning

confidence: 99%

Contaminants of legacy and emerging concern in largescale suckers (Catostomus macrocheilus) and the foodweb in the lower Columbia River, Oregon and Washington, USA

Nilsen

Zaugg

Alvarez

et al. 2014

Science of The Total Environment

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“…For example, 9% of U.S. domestic wells sampled during 1993-2000 had nitrate concentrations exceeding the U.S. Environmental Protection Agency's (EPA) maximum contaminant level of 10 mg⅐liter Ϫ1 as N (8). In the Yakima River Basin of Washington State, where this study was conducted, 13% of the samples taken from small-watershed sites exceeded the EPA's maximum contaminant level, indicating a potential health risk to nearby residents with shallow wells (9). N 2 O, a greenhouse gas nearly 300 times more effective at radiative warming than carbon dioxide (10), is produced mainly during the microbially mediated process of denitrification.…”

mentioning

confidence: 99%

Reduced nitrate leaching and enhanced denitrifier activity and efficiency in organically fertilized soils

Kramer

Reganold

Glover

et al. 2006

Proc. Natl. Acad. Sci. U.S.A.

269

125

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Conventional agriculture has improved in crop yield but at large costs to the environment, particularly off-site pollution from mineral N fertilizers. In response to environmental concerns, organic agriculture has become an increasingly popular option. One component of organic agriculture that remains in question is whether it can reduce agricultural N losses to groundwater and the atmosphere relative to conventional agriculture. Here we report reduced N pollution from organic and integrated farming systems compared with a conventional farming system. We evaluated differences in denitrification potential and a suite of other soil biological and chemical properties in soil samples taken from organic, integrated, and conventional treatments in an experimental apple orchard. Organically farmed soils exhibited higher potential denitrification rates, greater denitrification efficiency, higher organic matter, and greater microbial activity than conventionally farmed soils. The observed differences in denitrifier function were then assessed under field conditions after fertilization. N2O emissions were not significantly different among treatments; however, N2 emissions were highest in organic plots. Annual nitrate leaching was 4.4 -5.6 times higher in conventional plots than in organic plots, with the integrated plots in between. This study demonstrates that organic and integrated fertilization practices support more active and efficient denitrifier communities, shift the balance of N2 emissions and nitrate losses, and reduce environmentally damaging nitrate losses. Although this study specifically examines a perennial orchard system, the ecological and biogeochemical processes we evaluated are present in all agroecosystems, and the reductions in nitrate loss in this study could also be achievable in other cropping systems.denitrification ͉ nitrogen ͉ organic agriculture ͉ sustainable agriculture ͉ integrated farming

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“…Periphyton biomass can be reduced by substrate disruption and scour during high flows, especially flows with high loads of entrained sediment (Fuhrer et al 2004, Welch et al 1998). …”

Section: Specific Conductivitymentioning

confidence: 99%

“…Accordingly, the lowest instantaneous and can be readily delivered to surface water when bound to mobile soil particles (Fuhrer et al 2004, Welch et al 1998, Williamson et al 1997). …”

Section: Specific Conductivitymentioning

confidence: 99%

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Water Quality Trends in the Entiat River Subbasin: 2007-2008

Bookter¹,

Woodsmith²,

McCormick³

et al. 2009

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Production of high-quality water is a vitally important ecosystem service in the largely semiarid interior Columbia River basin (ICRB). Communities, tribal governments, and various agencies are concerned about maintenance of this water supply for domestic, agricultural, industrial, recreational, and ecosystem uses.Water quantity and quality are widely recognized as important components of habitat for depleted salmonid populations in the ICRB where a large, multiagency effort is underway to restore salmon, trout, and char listed as threatened or endangered under the federal Endangered Species Act. A particularly active program of salmonid restoration is ongoing in the Entiat River subbasin, part of the ICRB that drains a portion of the eastern slope of the Cascade Mountains in central Washington state. In the Entiat River, monitoring of compliance with the 1977 federal Clean Water Act has identified water temperature and especially pH as water quality parameters of concern. For these reasons, agencies and others concerned with production of high-quality water and restoration of listed salmonids require meaningful and efficient approaches to water quality monitoring. 2 RESEARch noTE pnW-Rn-563During spring 2007, we began testing a pilot water quality monitoring strategy using multiparameter data-logging instruments. These were deployed at four locations in the Entiat River subbasin to measure fundamental water quality parameters (pH, water temperature, dissolved oxygen, and specific conductivity). In 2007 and 2008, the highest pH values occurred during the low-flow period from midsummer through the following midspring, then dropped sharply during the annual snowmelt runoff period from late spring through early summer. Water temperature began rapidly increasing during the receding limb of the annual snowmelt hydrograph. Highest mean-monthly temperatures occurred in July and August, and instantaneous maxima occurred during the period July-September. Dissolved oxygen reached its lowest levels during the period of highest water temperature in July-September.Specific conductivity remained very low at all sites throughout the year.

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Water Quality in the Yakima River Basin, Washington, 1999-2000

Cited by 21 publications

References 0 publications

Contaminants of legacy and emerging concern in largescale suckers (Catostomus macrocheilus) and the foodweb in the lower Columbia River, Oregon and Washington, USA

Contaminants of legacy and emerging concern in largescale suckers (Catostomus macrocheilus) and the foodweb in the lower Columbia River, Oregon and Washington, USA

Reduced nitrate leaching and enhanced denitrifier activity and efficiency in organically fertilized soils

Water Quality Trends in the Entiat River Subbasin: 2007-2008

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