AUGUST 1993 - SEPTEMBER 1995 96 citations from AGRICOLA by Diane Doyle Water Quality Information Center ************************************************************** This electronic bibliography is intended primarily to provide awareness of recent investigations and discussions of a topic and is not intended to be in-depth and exhaustive. The inclusion or omission of a particular publication or citation should not be construed as endorsement or disapproval. Send suggestions for electronic bibliographies related to water resources and agriculture to wqic@nalusda.gov To locate a publication cited in this bibliography, please contact your local, state, or university library. If you are unable to locate a particular publication, your library can contact the National Agricultural Library (please see "Document Delivery Services" at http://www.nal.usda.gov/ddsb). ************************************************************ RESEARCHING WATER QUALITY (II) 1. Accuracy of nutrient runoff load calculations using time-composite sampling. Shih, G.; Abtew, W.; Obeysekera, J. Trans-ASAE v.37, p.419-429. (1994). Includes references. Descriptors: runoff-; phosphorus-; fertilizers-; drainage-; water-quality; watershed-management; sampling-; statistical-analysis Abstract: The accuracy of time-composite sampling as a means to calculate phosphorus loads from agricultural runoff was evaluated analytically and numerically. It was shown that, when hydrographs and concentration graphs were positively correlated, computations using a time-composite sampling strategy resulted in load underestimation. Combinations of 11 synthetically generated and 12 actual hydrographs and concentration graphs of agricultural runoff events were used for numerical analysis. The bias in load calculation with different sampling frequencies was determined. The influence of cross-correlation of hydrographs and concentration graphs on the direction and magnitude of bias was demonstrated. Although flow-composite sampling is theoretically correct for load computation, it is more expensive and, like other approaches, still involves uncertainties in both flow and concentration measurements. The dependence of the coefficient of variation (CV) of load on CV of flow rate, CV of concentration, and the cross-correlation between flow rate and concentration is presented analytically and graphically. To achieve load estimates comparable to the accuracy of flow-composite sampling, multiple time-composite sampling methods were investigated. This analysis indicates that with eight concentration values from eight time-composite samples of a runoff event, a reliable load estimation can usually be made. NAL Call No.: 290.9-Am32T ***************************************************************** 2. Adaptation of rapid bioassessment protocols for non-wadable waters. Gaunt, G. A.; Thorpe, P. A. Mich-acad v.25, p.363-381. (1993). Includes references. Descriptors: water-quality; bioassays-; rapid-methods; aquatic-insects; sampling-; michigan- NAL Call No.: Q1.A3M5 ***************************************************************** 3. Application and performance characteristics of a novel ELISA for the quantitative analysis of the atrazine metabolite deethylatrazine. Wittmann, C.; Hock, B. J-agric-food-chem v.41, p.1795-1799. (1993). Includes references. Descriptors: atrazine-; metabolites-; elisa-; water-pollution; herbicide-residues; germany- Abstract: A highly sensitive enzyme-linked immunosorbent assay (ELISA) was applied to the analysis of the atrazine metabolite deethylatrazine in natural water samples. The ELISA, with a detection range between approximately 10 ng/L and 10 micrograms/L, was performed and validated in microtiterplates; 120 environmental water samples were analyzed with the ELISA. A close correspondence wasfound between the results of the ELISA and those from GC or HPLC measurements. The correlation coefficient between ELISA and HPLC, based upon 70 water samples, was 0.98 and between ELISA and GC, based upon 50 water samples, 0.99. NAL Call No.: 381-J8223 ***************************************************************** 4. Assessing phosphorus bioavailability in agricultural soils and runoff. Sharpley, A. N. Fertil-res v.36, p.259-272. (1993). Includes references. Descriptors: phosphorus-; bioavailability-; estimation-; agricultural-soils; runoff-; analytical-methods; iron-oxides; water-quality; eutrophication-; risk-; no-tillage-; tillage-; watershed-management; algae-; nutrient-availability; conventional-tillage; iron-oxide-strips Abstract: Bioavailable phosphorus (BAP) transported in agricultural runoff can accelerate surface water eutrophication. Although several algal assays and chemical extractions have been proposed to estimate BAP, procedural and theoretical limitations have restricted widespread BAP measurement. Thus, a routine method was developed to estimate BAP, which uses iron oxide-impregnated paper strips (Fe-oxide strips) as a P-sink for BAP in runoff. In the proposed method BAP is determined by shaking 50 mL of unfiltered runoff with one Fe-oxide strip for 16 h. Phosphorus is removed from the strip by 0.1 M H2SO4 and measured. The BAP content of runoff from 20 agricultural watersheds in the Southern Plains was related to the growth of P-starved algae incubated for 29 d with runoff as the sole source of P. Acting as a P sink, Fe-oxide strips may have a stronger theoretical basis than chemical extraction in estimating BAP. The method may also have potential use as an environmental soil P test to indicate soils liable to enrich runoff with sufficient P to accelerate eutrophication. Bioavailable P loss in runoff was lower from no till (438 g ha-1 yr-1) than from conventional till (1288 g ha-1 yr-1). Kinetic and enrichment ratio approaches accurately predicted (r2 of 0.93) BAP transport in runoff during 1988 to 1990. Use of the Fe-oxide strip method will facilitate estimation of BAP transport in runoff and thereby, improve assessment of the resultant impact on the biological productivity of receiving surface waters. NAL Call No.: S631.F422 ***************************************************************** 5. An assessment of ground water quality at two Texas High Plains feedlots. Sweeten, J. M.; Marek, T. H.; McReynolds, D.; Wyatt, A. W.; Mollhangen, T.; Pennington, H. D.; Urban, L.; McDonald, T. PR-Tex-Agric-Exp-Sta p.75-79. (1992). Includes references. Descriptors: cattle-; feedlots-; groundwater-; water-quality; assessment-; sampling- NAL Call No.: 100-T31P ***************************************************************** 6. Background water quality at Ames Plantation. Yoder, R. E.; Essington, M. E.; Mote, C. R.; Mueller, T. C. Tenn-farm-home-sci p.26-28. (1994). Descriptors: groundwater-; field-tests; water-quality; wells-; sampling-; tennessee- NAL Call No.: 100-T25F ***************************************************************** 7. Chemical species. Jensen, J. N.; Dietrich, A. M. Water-environ-res v.66, p.279-291. (1994). Includes references. Descriptors: water-pollution; pollutants-; analytical-methods; biological-techniques; literature-reviews NAL Call No.: TD419.R47 ***************************************************************** 8. Combining computer simulation with physical simulation: an attempt to validate turf runoff models. Lin, J. C.; Graney, R. L. Weed-Technol-J-Weed-Sci-Soc-Am v.6, p.688-695. (1992). Paper presented at a Symposium on the, "Role of Modeling in Regulatory Affairs," at the Weed Science Society of America, February 4, 1991, Louisville, Kentucky. Descriptors: agricultural-chemicals; pesticides-; simulation-models; runoff-; risk-; aquatic-environment; calibration-; field-tests; prediction-; environmental-risk-assessment; model-validation NAL Call No.: SB610.W39 ***************************************************************** 9. Comparison of lysimeter types in collecting microbial constituents from sewage effluent. Krejsl, J.; Harrison, R.; Henry, C.; Turner, N.; Tone, D. Soil-Sci-Soc-Am-j. [Madison, Wis.] Soil Science Society of America. Jan/Feb 1994. v. 58 (1) p. 131-133. Includes references. Descriptors: septic-tank-effluent; sewage-effluent-disposal; soil-water; sampling-; efficiency-; lysimeters-; comparisons-; water-quality; coliform-bacteria; fecal-flora; bacterial-count; groundwater-pollution; microbial-contamination Abstract: There are no standard methods of determining the impact of septic systems on contamination of groundwater aquifers. Sampling of water for microbiological properties in unsaturated soil is particularly difficult. Successful water sampling devices should collect large amounts of percolating water with minimal change in chemical and biological properties of the water. This laboratory study compared the effectiveness of four types of soil water sampling devices for qualitative sampling of water, using total coliform, fecal coliform, and fecal streptococcus as the primary indicators of water quality. The devices tested were: (i) high-flow ceramic tension lysimeter, (ii) high-flow fritted glass tension lysimeter, (iii) sand-filled lysimeters, and (iv) perforated-tube wells. A constant source of vacuum (0.01 MPa) was applied to all devices to collect water samples. High-flow ceramic tension lysimeters collected adequate volumes of water (an average of 0.340 L after 6 h) but excessive filtering led to under-estimation of microbial numbers (only 6% of total coliform, 2.2% of fecal coliform, and no fecal streptococcus were collected). Perforated-tube wells did not collect any water under partially saturated soil conditions; collection occurred only below the water table. Sand-filled lysimeters showed the best combination of volume collection (an average of 0.660 L after 6 h) with good estimation of microbial numbers (90% for total coliform, 83% for fecal coliform, and 45% for fecal streptococcus). NAL Call No.: 56.9-So3 ***************************************************************** 10. Comparison of on-line solid-phase disk extraction to liquid-liquid extraction for monitoring selected pesticides in environmental waters. Chiron, S.; Fernandez Alba, A.; Barcelo, D. Environ-sci-technol v.27, p.2352-2359. (1993). In the special issue: Southeast Asia: facing development challenges. Descriptors: pesticides-; water-pollution; monitoring-; analytical-methods NAL Call No.: TD420.A1E5 ***************************************************************** 11. A comparison of surface runoff and sediment yields from low- and high-severity site preparation burns. Robichaud, P. R.; Waldrop, T. A. Water-resour-bull v.30, p.27-34. (1994). Includes references. Descriptors: prescribed-burning; site-preparation; logging-; erosion-; runoff-; sediment-yield; rain-; quantitative-analysis; south-carolina Abstract: Slash burning is a common site preparation technique used after timber harvest throughout the Southeastern United States. Little quantitative information exists on the hydrologic response to burn severity. This study compared the effects of low-severity and high-severity burns on runoff and sediment yields during rainfall simulation and during natural rainfall in the Southern Appalachian Mountains. Fire severity was largely determined by moisture conditions of the forest floor prior to ignition. Runoff and sediment yield variability was high between plots within the same treatment area due to differences in forest floor characteristics and infiltration rates. Conditions of high-severity resulted when burning was conducted with relatively dry fuels. Sediment yields were 40-times greater for the high-severity treatment areas than the low-severity treatment areas. NAL Call No.: 292.9-Am34 ***************************************************************** 12. Comparison of two methods of sampling perched ground water for water quality. Fausey, N. R.; Logan, T. J.; Workman, S. R.; Ward, A. D. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Summer 1992. (922082) 16 p. Paper presented at the "1992 International Summer Meeting sponsored by the American Society of Agricultural Engineers," June 21-24, 1992, Charlotte, North Carolina. Descriptors: water-quality; drainage-; groundwater- NAL Call No.: 290.9-Am32P ***************************************************************** 13. A comparison of water quality information obtained from depth-integrated versus depth-specific groundwater monitoring devices. Graham, W. D.; Downey, D. Proc-Soil-Crop-Sci-Soc-Fla. [S.l.] : The Society. 1992. v. 51 p. 58-63. Meeting held Sept 25-27, 1991, Orlando, Florida. Descriptors: groundwater-; water-quality; monitoring-; sampling-; depth-; monitors-; florida- NAL Call No.: 56.9-So32 ***************************************************************** 14. A computer controlled drainage and water quality field experimental system. Tait, R.; Madramootoo, C. A.; Enright, P. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Winter 1993. (93-3531) 16 p. Paper presented at the "1993 International Winter Meeting sponsored by the American Society of Agricultural Engineers," December 14-17, 1993, Chicago, Illinois. Descriptors: water-quality; drainage-; subsurface-irrigation; runoff-; computer-simulation; computer-analysis; quebec- NAL Call No.: 290.9-Am32P ***************************************************************** 15. Conservation tillage a sustainable agricultural practice. Lakshminarayan, P. G.; Bouzaher, A.; Johnson, S. R. Environmentally sound agriculture proceedings of the second conference 20-22 April 1994 / p.139-146. (1994). Includes references. Descriptors: zea-mays; glycine-max; continuous-cropping; rotations-; conservation-tillage; tillage-; environmental-impact; sustainability-; erosion-; erosion-control; nitrate-nitrogen; losses-from-soil; leaching-; runoff-; water-quality; simulation-models; statistical-analysis; conventional-tillage; metamodels- NAL Call No.: S589.7.E57-1994 ***************************************************************** 16. Continuous flow protocatalytic degradation of carbaryl in aqueous media. Peris Cardells, E.; Terol, J.; Mauri, A. R.; De la Guardia, M.; Pramauro, E. J-Environ-Sci-Health-Part-B-Pestic-Food-Contam-Agric-Wastes v.B28, p.431-445. (1993). Includes references. Descriptors: carbaryl-; photolysis-; ph-; titanium-dioxide; irradiation-; analytical-methods; water-; treatment-; polluted-water NAL Call No.: TD172.J61 ***************************************************************** 17. Design for a simulated nursery for water runoff research. Cole, J. C.; Stamback, V. L.; Gray, C. HortScience v.28, p.952-953. (1993). Includes references. Descriptors: runoff-water; experimental-plots; field-experimentation; nurseries-; design-; simulation-; detection-; water-pollution; contaminants-; water-management Abstract: Few data are available to indicate the chemical concentration of runoff from nursery operations,and, to our knowledge, no model systems have been developed to gain such data. This paperdescribes such a model system, in which nursery production beds have been designed to collect and quantify runoff water and contaminant concentrations so that management practices may be identified to decrease potential pollution problems. NAL Call No.: SB1.H6 ***************************************************************** 18. Designing, installation, and performance of percolation lysimeters for water quality sampling. Klocke, N. L.; Todd, R. W.; Hergert, G. W.; Watts, D. G.; Parkhurst, A. M. Trans-A-S-A-E v.36, p.429-435. (1993). Literature review. Descriptors: irrigation-; leachates-; lysimeters-; percolation-; water-quality; zea-mays; literature-reviews; nebraska- Abstract: Lysimeters are the primary research tool for measuring percolation and water quality. Monolithic percolation lysimeters were evaluated for measuring the quantity and quality of leachate from the root zone of irrigated crops. Six percolation lysimeters were installed in a continuous corn (Zea mays L.) cropping system near North Platte, Nebraska, during the fall of 1988 and spring 1989. The lysimeters were 0.9 m in diameter and 2.4 m deep. They were filled with undisturbed soil using a hydraulic pull-down method. Porous stainless steel extractors were installed vertically upward into the lysimeter bottoms, and leachate was extracted from the unsaturated soil. Leachate volume, volumetric soil water content, soil temperature, and soil bulk density were measured. Isolation of a large soil monolith in the lysimeter did not significantly affect plant growth, soil bulk density, or temperature. Soil water content near the lysimeter bottoms was greater than in the surrounding field after a wet spring in 1991. However, extractors removed most excess water and adequately matched unsaturated drainage in the field. Though leachate varied among lysimeters, they behaved similarly over time. Results will help relate irrigation management and scheduling strategies to potential leaching of soil water and associated chemicals into groundwater. NAL Call No.: 290.9-AM32T ***************************************************************** 19. Determination of different groups of organics in waste waters using test filters--relevance to drinking water production. Hobby, R.; Gimbel, R. Water-sci-technol v.29, p.87-94. (1994). In the series analytic: Rehabilitation of the River Rhine / edited by J.A. van de Kraats. The Netherlands. Descriptors: pulp-mill-effluent; water-pollution; rivers-; pollutants-; organic-compounds; sampling-; filters-; germany- NAL Call No.: TD420.A1P7 ***************************************************************** 20. Determination of dissolved-phase pesticides in surface water from the Yakima River basin, Washington, using the Goulden large-sample extractor and gas chromatography/mass spectrometry. Foster, G. D.; Gates, P. M.; Foreman, W. T.; McKenzie, S. W.; Rinella, F. A. Environ-sci-technol v.27, p.1911-1917. (1993). Includes references. Descriptors: surface-water; water-pollution; dissolving-; pesticides-; analytical-methods; washington-; water-dissolved-pesticides NAL Call No.: TD420.A1E5 ***************************************************************** 21. Differences in results of analyses of concurrent and split stream-water samples collected and analyzed by the U.S. Geological Survey and the Illinois Environmental Protection Agency, 1985-91. Analyses of concurrent and split stream-water samples collected and analyzed by the UGS and the IEPA, 1985-91. Melching, C. S.; Coupe, R. H. R. H. 1.; Illinois. Environmental Protection Agency. Urbana, Ill. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : U.S. Geological Survey-ESIC, Open-File Reports Section [distributor], 1995. iv, 46 p. : ill., map. Shipping list no.: 95-0118-P. Descriptors: Water-quality-Illinois-Measurement; Water-Illinois-Sampling NAL Call No.: GB701.W375--no.94-4141 ***************************************************************** 22. Dry deposition and canopy leaching rates in deciduous and coniferous forests of the Georgia Piedmont: an assessment of a regression model. Cappellato, R.; Peters, N. E. J-hydrol v.169, p.131-150. (1995). Includes references. Descriptors: deciduous-forests; coniferous-forests; deposition-; sulfate-; nitrogen-; hydrogen-; canopy-; leaching-; calcium-; magnesium-; potassium-; chloride-; throughfall-; regression-analysis; mathematical-models; georgia- Abstract: Simple and multiple linear regression models were used to estimate dry deposition and canopy leaching sources of constituents in throughfall and stemflow for adjacent deciduous and coniferous forests at the Panola Mountain Research Watershed (PMRW), Georgia. The models were evaluated for their comparability and statistical significance, and model fluxes were compared with fluxes derived from field collection and a dry deposition inferential model. i.e. field-interred fluxes. The multiple regression model used antecedent dry period and event quantity as independent variables. Field-inferred fluxes indicated that dry deposition was a major source of SO4(-2), NO3(-) and H+ in throughfall, and canopy leaching was the major source of Ca2(+), Mg2(+), K+ and Cl- in both deciduous and coniferous forests. The canopy leaching flux predicted by the multiple linear regression model NAL Call No.: 292.8-J82 ***************************************************************** 23. Early investigations dealing with water runoff and soil erosion. Miller, M. F. J-Am-Soc-Agron v.38, p.657-660. (1946). Includes references. Descriptors: erosion-; runoff-water; rain-; measurement-; field-experimentation; missouri- NAL Call No.: 4-Am34P ***************************************************************** 24. The effects of ground water sampling devices on water quality: a literature review. Parker, L. V. Ground-water-monit-remediat. Dublin, OH : Ground Water Pub. Co., c1993-. Spring 1994. v. 14 (2) p. 130-141. Includes references. Descriptors: groundwater-; water-quality; sampling-; literature-reviews Abstract: This paper reviews both field and laboratory studies that tested or compared the ability of various types of sampling devices to deliver representative ground water samples. Several types of grab samplers, positive displacement devices, and suction-lift devices were evaluated. Gas-lift and inertial-lift pumps were also evaluated. This study found that most of thise devices can, under certain circumstances, alter the chemistry of ground water samples. Gas-lift pumps, older types of submersible centrifugal pumps, and suction-lift devices are not recommended when sampling for sensitive constituents such as volatile organics and inorganics, or inorganics that are subject to oxidation/precipitation reactions. In general, of the devices reviewed in this paper, bladder pumps gave the best recovery of sensitive constituents. However, better performance could be achieved for several devices if improved operational guidelines were developed by additional testing, especially at lower flow rates. Clearly, further research is warranted. Future studies should focus on pumping rate, flow control mechanisms, and dedication of decontamination of sampling devices. NAL Call No.: GB1001.G76 ***************************************************************** 25. Effects of management practices on surface water quality from rice fields. Feagley, S. E.; Sigua, G. C.; Bengston, R. L.; Bollich, P. K.; Linscombe, S. D. La-Agric-La-Agric-Exp-Stn v.36, p.8-10. (1993). Descriptors: oryza-sativa; water-pollution; weed-control; cultural-control; fertilizers-; field-tests; no-tillage-; cultivation-; water-quality; louisiana- NAL Call No.: 100-L939 ***************************************************************** 26. Effects of poultry litter application on surface water quality. 1. A field experiment. Huhnke, R. L.; Storm, D. E.; Brown, G. O.; Smolen, M. D. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Summer 1992. (92-2121/92-3010) 14 p. Paper presented at the "1992 International Summer Meeting sponsored by the American Society of Agricultural Engineers," June 21-24, 1992, Charlotte, North Carolina. Descriptors: poultry-manure; soil-chemistry; pastures-; runoff-water; tillage-; plant-height; water-quality; water-pollution; waste-utilization; rain-; oklahoma- NAL Call No.: 290.9-Am32P ***************************************************************** 27. Element-selective detection of pesticides by gas chromatography-atomic emission detection and solid-phase microextraction. Eisert, R.; Levsen, K.; Wunsch, G. J-chromatogr-A v.683, p.175-183. (1994). Paper presented at the "Third International Symposium on Hyphenated Techniques in Chromatography," February 22-25, 1994, Antwerp, Belgium. Descriptors: pesticides-; organophosphorus-pesticides; pesticide-residues; extraction-; gas-chromatography; analytical-methods; water-pollution NAL Call No.: QD272.C4J68 ***************************************************************** 28. Environmental soil and groundwater assessment using high resolution passive soil-gas samplers--PETREX method: methodology and results of a case study performed in Brazil. Gomes, D. C.; Alarsa, M.; Salvador, M. C.; Kupferschmid, C. Water-sci-technol v.29, p.161-172. (1994). In the series analytic: Waste management in the chemical and petrochemical industries / edited by F. Fontes Lima, F. Alves, Pereira and S.A.S. Almeida. Descriptors: volatile-compounds; pollutants-; soil-air; sampling-; gas-chromatography; mass-spectrometry; soil-pollution; groundwater-pollution; polluted-soils; brazil-; semivolatile-compounds NAL Call No.: TD420.A1P7 ***************************************************************** 29. Erratum: What do significance tests really tell us about the environment. McBride, G. B.; Loftis, J. C.; Adkins, N. C. Environ-manage. New York, Springer-Verlag. Mar/Apr 1994. v. 18 (2) p. 317. Descriptors: pastures-; groundwater-; water-quality; statistical-analysis; regulations-; soil-ph; usa- NAL Call No.: HC79.E5E5 ***************************************************************** 30. Evaluating nitrate recovery by ion-exchange resin bags. Wyland, L. J.; Jackson, L. E. Soil-Sci-Soc-Am-j. [Madison, Wis.] Soil Science Society of America. Sept/Oct 1993. v. 57 (5) p. 1208-1211. Includes references. Descriptors: agricultural-soils; soil-analysis; nitrate-; leaching-; losses-from-soil; analytical-methods; evaluation-; anion-exchange-resins; recovery-; adsorption-; nitrogen-retention; nitrate-nitrogen; anion-exchange-capacity Abstract: Ion-exchange resin (IER) bags were tested as traps for leached soil NO3(-)-N. In laboratoryexperiments, IER bags recovered 84.7% of the NO3(-)-N from solutions containing 0.09 to 40.74 g NO3(-)-N kg-1 resin, but recovery decreased at higher concentrations. In soil columns, NO3(-)-Nrecovery was poor (36.2%) when NO3(-)N moved slowly through the soil profile after a rapid singlepulse, but improved (87.1%) when higher flow was sustained. In the field, estimates of leachedNO3(-)-N using IER bags fell within the range of values estimated from soil cores and suctionlysimeters. Advantages of IER bags are attributed to cumulative recovery of NO3(-)-N during passive interception of gravitational water flow. NAL Call No.: 56.9-So3 ***************************************************************** 31. Evaluation of subsurface exploration, sampling, and water-quality-analysis methods at an abandoned wood-preserving plant site at Jackson, Tennessee. Parks, W. S.; Carmichael, J. K.; Mirecki, J. E.; Geological Survey (U.S.). Division. North Superfund Remedial Branch. Memphis, Tenn. : U.S. Geological Survey ; Denver, Colo. : Books and Open-File Reports Section [distributor], 1993. v, 22 p. : ill., maps. Includes bibliographical references (p. 21-22). Descriptors: Creosote-Environmental-aspects-Tennessee-Jackson; Groundwater-Pollution-Tennessee-Jackson; Pentachlorophen-Environmental-aspects NAL Call No.: GB701.W375-no.93-4108 ***************************************************************** 32. Factors controlling phosphorous loading to lakes in Maine : A statistical analysis. GEOLOGICAL SCIENCES - 1992. Nieratko, D. P. 1. Orono, Me., 1992. vii, 82 leaves : ill.. Includes vita. Descriptors: Eutrophication-Maine; Lakes-Maine; Water-quality-Maine-Measurement; Phosphates-Environmental-aspects NAL Call No.: MeU Univ.-1992-N54 ***************************************************************** 33. Fate of chlorinated aliphatic hydrocarbons in the vadose zone and ground water. Barbee, G. C. Ground-water-monit-remediat. Dublin, OH : Ground Water Pub. Co., c1993-. Winter 1994. v. 14 (1) p. 129-140. Volume number given as IX on spine of this issue. Descriptors: soil-pollution; groundwater-pollution; hydrocarbons-; organochlorine-compounds; physicochemical-properties; movement-in-soil; transformation-; persistence-; sampling-; usa- Abstract: The large-scale production and use of chlorinated aliphatic hydrocarbons (CHC) in the United States has resulted in numerous documented cases of soil and ground water contamination. Potential chronic exposure from contaminated soil and ground water, as well as from products used in the home, is sufficient reason to develop a thorough understanding of the environmental fate of these known and possible human carcinogens. Most CHCs are very mobile in the subsurface environment, either as volatilized Constituents in the vadose zone due to their high vapor pressure and low water solubility; as dissolved constituents in ground water since they are not strongly adsorbed by aquifer materials; and as dense nonaqueous phase liquids (DNAPLs) in ground water, primarily because they have low water solubility and densities greater than water. As free-phase chemicals (i.e., DNAPLs), CHCs may pool on low-permeability subsurface stratum and cause shrinkage and cracking of clay minerals, thereby significantly increasing the stratum's hydraulic conductivity and allowing rapid CHC breakthrough and migration. Although laboratory and field studies have demonstrated this effect, additional investigations are needed to determine the impact CHC DNAPLs have on low-permeability in situ sediments. CHCs are persistent environmental contaminants because they resist chemical and biological degradation. The average half-life for CHC abiotic transformations ranges from two months to greater than 10(10) years. Chlorinated ethenes are the most resistant CHCs to abiotic degradation. Biodegradation half-lives for CHCs may vary considerably but range from about two weeks to eight months or more. Anaerobic reductive. ground water, although aerobic CHC biodegradation may be a significant process in the shallow subsurface. Technological applications of remedial processes for stimulating in situ CHC biodegradation in soils and ground water need to be developed, particularly with regard to CHCs entrained as residual saturation. NAL Call No.: GB1001.G76 ***************************************************************** 34. Field instrumentation of a depression focused recharged site. Brown, J. W.; Wilson, B. N.; Nieber, J.; Hansen, B.; Brooks, E.; Sanda, M. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Summer 1994. (94-2156/94-2185) 17 p. Paper presented at the "1994 International Summer Meeting sponsored by the American Society of Agricultural Engineers," June 19-22, 1994, Kansas City, Missouri. Descriptors: groundwater-recharge; groundwater-pollution; water-quality; groundwater-flow; landscape-; instrumentation-; usa-; morainal-landscapes NAL Call No.: 290.9-Am32P ***************************************************************** 35. Field measurements for estimating leaching flux in free draining soils. Thorburn, A. A. Asp-appl-biol p.81-84. (1992). In the series analytic: Nitrate and farming systems / edited by J.R. Archer, K.W.T. Goulding, S.C. Jarvis, C.M. Knott, I. Lord, S.E. Ogilvy, J. Orson, K.A. Smith, and B. Wilson. Descriptors: leaching-; nutrients-; nitrate-; pesticides-; lysimeters-; lysimetry-; sampling-; soil-solution; drainage-; groundwater-pollution; drainage-water; soil-solution-sampling NAL Call No.: QH301.A76 ***************************************************************** 36. Field sampling methods for remedial investigations. Byrnes, M. E.; Leydorf, D. M.; Smet, D. B. Boca Raton : Lewis, c1994. 254 p. : ill.. Includes bibliographical references and index. Descriptors: Soil-pollution-Measurement-Technique; Water-Pollution-Measurement-Technique; Soils-Sampling-Technique; Water-Sampling-Technique; Groundwater-Sampling-Technique; Soils-Contamination NAL Call No.: TD878.B96--1994 ***************************************************************** 37. Field-scale testing of a two-stage bioreactor for removal of creosote and pentachlorophenol from ground water: chemical and biological assessment. Middaugh, D. P.; Lantz, S. E.; Heard, C. S.; Mueller, J. G. Arch-environ-contam-toxicol. New York, Springer-Verlag. Apr 1994. v. 26 (3) p. 320-328. Includes references. Descriptors: groundwater-pollution; creosote-; pentachlorophenol-; groundwater-; treatment-; bioreactors-; microbial-activities; pseudomonas-; performance-appraisals; toxicity-; tests-; menidia-; ceriodaphnia- NAL Call No.: TD172.A7 ***************************************************************** 38. Field-testing of nonpoint source monitoring efficiency. Yoder, R. E.; Mote, C. R.; Yoder, D. C.; Ammons, J. T.; Tyler, D. D.; Wilson, G. V.; Sanders, W. L. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Summer 1994. (94-2091/94-2119) 17 p. Paper presented at the "1994 International Summer Meeting sponsored by the American Society of Agricultural Engineers," June 20-23, 1994, Kansas City, Missouri. Descriptors: water-pollution; water-quality; flow-; wells-; monitoring- NAL Call No.: 290.9-Am32P ***************************************************************** 39. Freshwater field tests for hazard assessment of chemicals. Hill, I. R. Boca Raton : Lewis Publishers, 1994. xxxvii, 561 p. : ill.. Includes bibliographical references and indexes. Descriptors: Water-quality-bioassay; Water-Pollution-Toxicology; Toxicity-testing NAL Call No.: QH96.8.B5F78--1994 ***************************************************************** 40. Gas chromatographic/electron capture detection method for determination of chlorinated acids in water: collaborative study. Edgell, K. W.; Erb, E. J.; Wesselman, R. J.; Longbottom, J. E. J-AOAC-Int v.76, p.1098-1112. (1993). Includes references. Descriptors: water-pollution; pesticide-residues; detection-; quantitative-analysis; analytical-methods; evolution- NAL Call No.: S583.A7 ***************************************************************** 41. Gas chromatographic/nitrogen-phosphorus detection method for determination of ethylene thiourea in finished drinking waters: collaborative study. Longbottom, J. E.; Edgell, K. W.; Erb, E. J.; Lopez Avila, V. J-AOAC-Int v.76, p.1113-1120. (1993). Includes references. Descriptors: water-pollution; drinking-water; monitoring-; contaminants-; pesticide-residues; thiourea-; determination-; analytical-methods NAL Call No.: S583.A7 ***************************************************************** 42. Geometrically incremental volume sampling for ephemeral ditch pollutants. Tremwel, T. K.; Campbell, K. L.; Miller, L. W. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Summer 1991. (912007) 16 p. Paper presented at the "1991 International Summer Meeting sponsored by the American Society of Agricultural Engineers," June 23-26, 1991, Albuquerque, New Mexico. Descriptors: runoff-; pollution-; sampling- NAL Call No.: 290.9-Am32P ***************************************************************** 43. Groundwater quality : 17th special report. 1st ed. Nash, H. H.; McCall, G. J. H. G. J. H. 1. London ; New York : Chapman & Hall, 1995. xv, 204 p. : ill., maps. Includes bibliographical references and index. Descriptors: Groundwater-Quality-Measurement; Groundwater-Sampling NAL Call No.: TD403.G78--1995 ***************************************************************** 44. Hydrologic measurements on Little River experimental watershed in Georgia. Mills, W. C.; Sheridan, J. M.; Ferreira, V. A. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Summer 1993. (932137) 32 p. Paper presented at the "1993 International Summer Meeting sponsored by The American Society of Agricultural Engineers and The Canadian Society of Agricultural Engineering," June 20-23, 1993, Spokane, Washington. Descriptors: watersheds-; instrumentation-; rain-; runoff-; water-table; georgia- NAL Call No.: 290.9-Am32P ***************************************************************** 45. An inexpensive device for multi-level sampling of groundwater quality in shallow cohesionless aquifers. Graham, W.; Downey, D. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Winter 1991. (912568) 21 p. Paper presented at the "1991 International Winter Meeting sponsored by the American Society of Agricultural Engineers, December 17-20, 1991, Chicago, Illinois. Descriptors: groundwater-; sampling-; nitrates- NAL Call No.: 290.9-Am32P ***************************************************************** 46. Input and dynamic behavior of the organic pollutants tetrachloroethene, atraazine, and NTA in a lake: a study combining mathematical modeling and field measurements. Ulrich, M. M.; Muller, S. R.; Singer, H. P.; Imboden, D. M.; Schwarzenbach, R. P. Environ-sci-technol v.28, p.1674-1685. (1994). Includes references. Descriptors: lakes-; polluted-water; pollutants-; atrazine-; computer-simulation; environmental-degradation; watersheds-; mathematical-models; field-experimentation; switzerland-; nitrilotriacetate- NAL Call No.: TD420.A1E5 ***************************************************************** 47. An instrumented, field-scale research facility for drainage and water quality studies. Tait, R.; Madramootoo, C. A.; Enright, P. Comput-electron-agric v.12, p.131-145. (1995). Includes references. Descriptors: drainage-; irrigation-systems; water-quality; nitrogen-fertilizers; field-experimentation; cropping-systems; computer-software; runoff-; nitrates-; data-collection; quebec-; subirrigation-; soulanges-county,-quebec NAL Call No.: S494.5.D3C652 ***************************************************************** 48. Interlaboratory comparison of iron oxide-impregnated paper to estimate bioavailable phosphorus. Sharpley, A. N.; Indiati, R.; Ciavatta, C.; Rossi, N.; Sequi, P. J-environ-qual v.23, p.14-18. (1994). Technical Reports from the Symposium, "Minimizing Agricultural Nonpoint-Source Impacts", November 2, 1992, Minneapolis, Minnesota. Descriptors: phosphorus-; bioavailability-; estimation-; runoff-; sediment-; analytical-methods Abstract: The transport of bioavailable phosphorus (BAP) in agricultural runoff can accelerate the eutrophication of receiving water bodies. However, procedural and theoretical limitations of algal bioassays and chemical extractants have restricted widespread measurement of BAP. Thus, a simple method using iron oxide-impregnated paper (Fe-oxide strips) as a sink for BAP in runoff samples has been developed. As the method has potential application for BAP extraction at one location and analysis at another, Fe-oxide strips were sent to Bologna and Rome, Italy, for P extraction of runoff samples and BAP determined. These BAP estimates were not significantly different (p < 0.001) from values determined on duplicate strips returned to the USA for BAP analysis. The close agreement in BAP measured in Italian and U.S. laboratories indicates that the simplicity of the proposed method can give highly reproducible BAP estimates. Prepared Fe-oxide strips may be sent to a location and BAP extracted using only a 100- to 500-mL bottle in which a strip and runoff sample are shaken overnight. The Fe-oxide strip may then be air-dried and returned to an analytical laboratory for subsequent P removal and measurement. Storage of these strips for up to 60 d had no effect on the amounts of P released. NAL Call No.: QH540.J6 ***************************************************************** 49. A laboratory analysis of the effect of macropores on solute transport. Wildenschild, D.; Jensen, K. H.; Villholth, K.; Illangasekare, T. H. Ground-water. Dublin, Ohio : Ground Water Pub. Co. May/June 1994. v. 32 (3) p. 381-389. Includes references. Descriptors: soil-; macropores-; flow-; groundwater-pollution; agricultural-chemicals; pollutants-; laboratory-methods; laboratory-tests; clay-soils; moraine-soils; denmark-; undisturbed-soil-monoliths; unsaturated-zone NAL Call No.: TD403.G7 ***************************************************************** 50. Leaching potential of turf care pesticides: a case study of Long Island golf courses. Primi, P.; Surgan, M. H.; Urban, T. Ground-water-monit-remediat. Dublin, OH : Ground Water Pub. Co., c1993-. Summer 1994. v. 14 (3) p. 129-138. Includes references. Descriptors: lawns-and-turf; golf-courses; pesticides-; metabolites-; leaching-; sandy-soils; groundwater-; groundwater-pollution; monitoring-; simulation-models; analytical-methods; case-studies; new-york Abstract: Pesticides used to maintain golf course turf can threaten ground water. This concern is particularly important in most of New York's Long Island, where generally sandy soils overlie a sole source aquifer. This study uses two methods to evaluate the potential for pesticides that are commonly used on Long Island's golf courses to leach to ground water. Adapting the Pesticide Root Zone Model (PRZM), Release 1, for dense turf and applying site-specific soil data, certain pesticides, including metalaxyl and trichlorfon, are identified as potential problem leachers. PRZM simulations also identify the Long Island soils, including the sandy Plymouth and Carver soils, which are most vulnerable to leaching. When adequate input data for PRZM is unavailable, the ground water ubiquity score (GUS) method may be useful. GUS leachability classifications of pesticides commonly applied on Long Island golf courses, and of pesticides actually detected in ground water samples taken on Long Island, agree with PRZM predictions and the field data. The GUS method is applied to the evaluation of the leaching potential of pesticide degradation products (DCPA, maneb, and mancozeb metabolites), and the degradation products are shown to be a greater threat to ground water than their parent compounds. These methods are potentially useful in designing ground water monitoring programs and for guiding the pesticide use and selection decisions of golf course managers. NAL Call No.: GB1001.G76 ***************************************************************** 51. Leaching water flow paths during wick sampling. Kohl, R. A.; Carlson, C. G.; Wangemann, S. G. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Summer 1992. (922070) 9 p. Paper presented at the "1992 International Summer Meeting sponsored by The American Society of Agricultural Engineers," June 21-24, 1992, Charlotte, North Carolina. Descriptors: leaching-; water-erosion NAL Call No.: 290.9-Am32P ***************************************************************** 52. Low-cost vacuum lysimeters for soil moisture sampling. McBurnie, J. C. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Summer 1992. (922067) 8 p. Paper presented at the "1992 International Summer Meeting sponsored by The American Society of Agricultural Engineers," June 21-24, 1992, Charlotte, North Carolina. Descriptors: water-quality; nitrates-; leaching- NAL Call No.: 290.9-Am32P ***************************************************************** 53. Lysimeters bridge lab and field tests. Senft, D. Agric-res v.42, p.22. (1994). Descriptors: lysimeters-; design-; solutes-; movement-in-soil; soil-analysis; water-pollution; aboveground-lysimeters NAL Call No.: 1.98-Ag84 ***************************************************************** 54. Measuring and sampling surface runoff and subsurface drain outflow volume. Soultani, M.; Tan, C. S.; Gaynor, J. D.; Neveu, R.; Drury, C. F. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Summer 1993. (932136) 12 p. Paper presented at the "1993 International Summer Meeting sponsored by The American Society of Agricultural Engineers and The Canadian Society of Agricultural Engineering," June 20-23, 1993, Spokane, Washington. Descriptors: measurement-; meters- NAL Call No.: 290.9-Am32P ***************************************************************** 55. Measuring and sampling surface runoff and subsurface drain outflow volume. Soultani, M.; Tan, C. S.; Gaynor, J. D.; Neveu, R.; Drury, C. F. Appl-eng-agric v.9, p.447-450. (1993). Includes references. Descriptors: runoff-; subsurface-drainage; measurement-; sampling-; automation-; water-quality Abstract: An instrumentation system for automatically measuring and sampling surface runoff and subsurfacedrain outflow from experimental plots was developed. Surface runoff and subsurface drain outflowwere channeled to a central collection building where volumes were measured and recorded bydatalogger. The data stored in the datalogger were automatically transmitted to an IBM-compatiblecomputer at Harrow Research Station every 24 h. Laboratory calibration and field verification ofthe system showed excellent agreement between actual and measured volume. The digital output fromthe water-measuring device was used to activate a water sampler at selected volumes. NAL Call No.: S671.A66 ***************************************************************** 56. Measuring water quality. Felsot, A. S. Ill-res v.34, p.4-10. (1992-1993). Descriptors: water-quality; measurement-; testing-; sampling-; laboratory-methods NAL Call No.: 100-Il64 ***************************************************************** 57. Methodology and instrumentation for assessing the water quality impacts of a dairy waste land application system. Vellidis, G.; Henry, S.; Perry, C.; Hubbard, R. K. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Winter 1991. (912598) 9 p. Paper presented at the "1991 International Winter Meeting sponsored by the American Society of Agricultural Engineers," December 17-20, 1991, Chicago, Illinois. Descriptors: water-quality; dairy-wastes; evaluation- NAL Call No.: 290.9-Am32P ***************************************************************** 58. Methods for sampling fish communities as part of the National Water-Quality Assessment Program. Meador, M. R. M. R. 1.; Cuffney, T. F. 1.; Gurtz, M. E.; Geological Survey (U.S.). Raleigh, N.C. : U.S. Geological Survey ; Denver, Colo. : U.S. Geological Survey, Books and Open-File Reports [distributor], 1993. iv, 40 p. : ill.. Includes bibliographical references (p. 37-40). Descriptors: Water-quality-United-States; Fishes-United-States-Habitat NAL Call No.: QL627.M42--1993 ***************************************************************** 59. Microcontrollers in recirculating aquaculture systems. Fowler, P.; Baird, D.; Bucklin, R.; Yerlan, S.; Watson, C.; Chapman, F. EES. Gainesville, Fla. : Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida,. Apr 1994. (326) 7 p. Descriptors: aquaculture-; closed-systems; water-quality; monitoring-; sensors-; instrumentation-; automatic-control; feedback- NAL Call No.: TJ163.4.U6E36 ***************************************************************** 60. Monitoring drainage solution concentrations and solute flux in unsaturated soil with a porous cup sampler and soil moisture sensors. McGuire, P. E.; Lowery, B. Ground-water. Dublin, Ohio : Ground Water Pub. Co. May/June 1994. v. 32 (3) p. 356-362. Includes references. Descriptors: soil-solution; application-; samples-; sampling-; vertical-movement; potassium-bromide; solutes-; discharge-; concentration-; soil-water; tension-; tensiometers-; drainage-water; water-quality; unsaturated-zone; distilled-water; soil-column; content-gradients; soil-water-sensors NAL Call No.: TD403.G7 ***************************************************************** 61. Monitoring for selected degradation products following a spill of VAPAM into the Sacramento River. Rosario, A. d.; Remoy, J.; Soliman, V.; Dhaliwal, J.; Dhoot, J.; Perera, K. J-environ-qual v.23, p.279-286. (1994). Includes references. Descriptors: soil-fumigants; accidents-; river-water; water-quality; drinking-water; water-pollution; spatial-distribution; metabolites-; analytical-methods; public-health; california-; pesticide-spill; contaminant-plume Abstract: Following a rail accident that spilled the soil fumigant VAPAM into the Sacramento River on 14 July 1991, a special study was carried out to assess the extent of contamination in Lake Shasta. A total of 32 river water samples collected on 18 July and another 316 samples collected from 22 July through 30 August were analyzed. Data obtained clearly showed the presence of the degradation products of Metham, namely, methyl isothiocyanate, carbonyl sulfide, methyl sulfide, and traces of methylamine. However, due to the emergency nature of the incident that required quick analytical turnaround times, as well as the unavailability of a satisfactory analytical method, the presence of Metham could not be demonstrated with certainty initially. Nonetheless, the laboratory's timely response to the crisis assisted public health officials in assessing the extent of the contamination and assuring the community-at-large that their drinking water was safe to consume. None of the degradation products analyzed were detected 1 wk after the spill. NAL Call No.: QH540.J6 ***************************************************************** 62. Monitoring pesticide and nitrate in Virginia's groundwater--a pilot study. Bruggeman, A. C.; Mostaghimi, S.; Holtzman, G. I.; Shanholz, V. O.; Shukla, S.; Ross, B. B. Trans-ASAE v.38, p.797-807. (1995). Includes references. Descriptors: groundwater-; water-quality; wells-; pesticides-; groundwater-pollution; monitoring-; aquifers-; nitrate-; sampling-; virginia- Abstract: Between October 1992 and February 1993, a total of 359 private wells in Northampton County were sampled and data on water-quality variables (temperature, pH, and conductivity), well construction, and site characteristics were collected. The groundwater samples were analyzed for aldicarb, alachlor, atrazine, carbofuran, linuron, methomyl, metolachlor, metribuzin, napropamide, pendimethalin, pronamide, simazine, and nitrate. The wells were stratified into shallow wells, withdrawing water from the unconfined aquifer, and deep wells, withdrawing water from the deeper confined aquifers. The study was undertaken as a pilot study to demonstrate the applicability of a recently developed framework for evaluating the extent of pesticide contamination in Virginia's groundwater. Pesticides were detected in 14% of the shallow wells and in 7% of the deep wells sampled. Pesticide detection was associated with the well depth, with a higher probability of detecting a pesticide in the shallow unconfined aquifer than in the deeper aquifers. Nitrate above the U.S. EPA drinking water standard of 10 mg/L was found in 17% of the shallow and 1% of the deep wells. Pesticide and nitrate detections were not significantly related to well and site characteristics, such as crop type, location of well head, and distance to the nearest water body. NAL Call No.: 290.9-Am32T ***************************************************************** 63. Monitoring, sampling, and automated analysis. Goo, R. Water-environ-res v.66, p.298-301. (1994). Includes references. Descriptors: water-pollution; monitoring-; sampling-; chemical-analysis; automation-; literature-reviews NAL Call No.: TD419.R47 ***************************************************************** 64. Nitrate leaching under furrow irrigation as affected by crop sequence and tillage. Meek, B. D.; Carter, D. L.; Westermann, D. T.; Wright, J. L.; Peckenpaugh, R. E. Soil-Sci-Soc-Am-j. [Madison, Wis.] Soil Science Society of America. Jan/Feb 1995. v. 59 (1) p. 204-210. Includes references. Descriptors: medicago-sativa; phaseolus-vulgaris; zea-mays; triticum-aestivum; winter-wheat; rotations-; no-tillage-; tillage-; furrow-irrigation; nitrate-nitrogen; leaching-; determination-; soil-depth; sampling-; soil-solution; soil-water-balance; idaho-; conventional-tillage Abstract: The potential for NO3-N leaching after alfalfa (Medicago sativa L.) in irrigated crop production depends on cropping sequence and tillage practices. A 2-yr field experiment in south-central Idaho compared the NO3-N leached following alfalfa of a conventional tillage bean-bean (Phaseolus vulgaris L.) rotation with a silage corn (Zea mays L.)-winter wheat (Triticum aestivum L.) rotation in a conventional tillage or no-till system. Nitrate leaching was determined by: (i) sampling the soil solution below the root zone (1.2 and 1.5 m) using ceramic-tipped samplers and calculating the N movement from the water balance, and (ii) measuring the change in soil NO3-N at 1.35 to 4.5 m from soil samples taken in the fall and spring to 4.5 m. During the second growing season, average soil solution NO3-N concentrations (below the root zone) were 28, 4, and 10 mg L-1 for the bean-bean, corn-wheat no-till, and corn-wheat tilled treatments, respectively. The soil NO3-N in 1.35 to 3.3 m at the end of the study was 80 kg N ha-1 higher for the bean-bean treatment than for the corn-wheat treatments. The NO3-N that moved below 1.35 m during the 2 yr was 53 4 ha-1 higher for the bean-bean than for the corn-wheat treatments. The soil NO3-N in the 1.35 to 3.3 m depth after 2 yr was 21 kg ha-1 higher for the corn-wheat under conventional tillage than under the no-till system. NAL Call No.: 56.9-So3 ***************************************************************** 65. On-farm nitrogen tests improve fertilizer efficiency, protect groundwater. Hartz, T. K.; Smith, R. F.; Schullbach, K. F.; LeStrange, M. Calif-agric v.48, p.29-32. (1994). Descriptors: nitrogen-fertilizers; efficiency-; groundwater-pollution; field-tests; sap-; soil-testing; california- NAL Call No.: 100-C12Cag ***************************************************************** 66. Open channel mass flow measurement system. Yoder, D. C.; Wilkerson, J. B.; Yoder, R. E.; Hamilton, D. W. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Winter 1993. (93-3532) 9 p. Paper presented at the "1993 International Winter Meeting sponsored by the American Society of Agricultural Engineers," December 14-17, 1993, Chicago, Illinois. Descriptors: runoff-; instrumentation-; water-flow; tennessee- NAL Call No.: 290.9-Am32P ***************************************************************** 67. Passive sampling of water and coastal air via semipermeable membrane devices. Prest, H. F.; Jacobson, L. A.; Huckins, J. N. Chemosphere v.30, p.1351-1361. (1995). Includes references. Descriptors: organochlorine-pesticides; organochlorine-insecticides; chlordane-; hch-; insecticide-residues; sampling-; air-pollution; water-pollution; samplers-; membranes-; coastal-areas; california-; dde- NAL Call No.: TD172.C54 ***************************************************************** 68. Predicting nitrate concentration in surface waters in Northern Ireland. Smith, R. V.; Foy, R. H.; Jordan, C.; Smyth, D. Asp-appl-biol p.439-443. (1992). In the series analytic: Nitrate and farming systems / edited by J.R. Archer, K.W.T. Goulding, S.C. Jarvis, C.M. Knott, I. Lord, S.E. Ogilvy, J. Orson, K.A. Smith, and B. Wilson. Descriptors: nitrate-; surface-water; water-quality; prediction-; mathematical-models; regression-analysis; water-pollution; rivers-; agricultural-land; northern-ireland NAL Call No.: QH301.A76 ***************************************************************** 69. Prediction of pesticide behavior in soil by means of simple field tests. Blume, H. P.; Ahlsdorf, B. Ecotoxicol-environ-saf v.26, p.313-332. (1993). Includes references. Descriptors: pesticide-residues; soil-; biodegradation-; volatilization-; temperature-; meteorological-factors; soil-pollution; groundwater-pollution; risk- NAL Call No.: QH545.A1E29 ***************************************************************** 70. Private well testing. Liukkonen, B.; Minnesota Extension Service. [Duluth, Minn.?] : Minnesota Extension Service, [1993] 1 sheet : map. Caption title. Barbara Liukkonen"--P. [2]. Descriptors: Groundwater-Minnesota-Sampling; Water-quality-Minnesota NAL Call No.: TD224.M6L58--1993 ***************************************************************** 71. Randomized intervention analysis of the response of the West Bear Brook Watershed, Maine to chemical manipulation. Uddameri, V.; Norton, S. A.; Kahl, J. S.; Scofield, J. P. Water-air-soil-pollut v.79, p.131-146. (1995). In the special issue: Biogeochemical monitoring in small catchments / edited by J. Cerny, M. Novak, T. Paces and R.K. Weider. Integrated Monitoring in Small Catchments," held September 18-20, 1993, Prague, Czech Republic. Descriptors: watersheds-; ammonium-sulfate; acid-rain; simulation-; streams-; water-quality; chemical-composition; anions-; cations-; acidification-; autocorrelation-; statistical-analysis; maine-; water-chemistry NAL Call No.: TD172.W36 ***************************************************************** 72. Research on the little Washita River watershed: past, present, future. Starks, P.; Garbrecht, J.; Daniel, J. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Summer 1994. (94-2156/94-2185) 9 p. Paper presented at the "1994 International Summer Meeting sponsored by the American Society of Agricultural Engineers," June 19-22, 1994, Kansas City, Missouri. Descriptors: watershed-management; catchment-hydrology; remote-sensing; instrumentation-; water-quality; monitoring-; agricultural-research; history-; oklahoma- NAL Call No.: 290.9-Am32P ***************************************************************** 73. The rewetting of partially dried grass swaths by rain. 4. Measurement of leaching losses. McGechan, M. B. J-Agric-Eng-Res v.55, p.57-67. (1993). Includes references. Descriptors: windrowing-; windrowers-; windrows-; wilting-; rain-; wetting-; rainfall-simulators; laboratory-methods; runoff-; water-; nutrients-; leaching-; losses-; models-; moisture-content Abstract: Runoff water collected in laboratory experiments with simulated rainfall on partially dried grass samples was analysed to estimate the extent of leaching losses which occur when rain falls on partially dried swaths in the field. Loss levels varied between grass samples, and between runoff water samples taken at different stages of rewetting on the same grass. Results showed a tendency towards higher losses from initially drier grass swaths, and higher losses from conditioned compared to unconditioned grass, but not in a very consistent manner. The distributed model of the rewetting process was used to attempt to explain variations in losses over time. A leaching loss relationship for use in Operational Research models of forage conservation is suggested; this represents the main trends shown in the results with regard to variation in loss with swath moisture content and conditioning, but not the random variation arising for unknown reasons. NAL Call No.: 58.8-J82 ***************************************************************** 74. Roughness coefficients for selected residue materials. Gilley, J. E.; Kottwitz, E. R.; Wieman, G. A. J-Irr-Drain-Eng v.117, p.503-514. (1991). Includes references. Descriptors: runoff-; overland-flow; crop-residues; pine-needles; surface-roughness; hydraulics-; upland-areas; regression-analysis NAL Call No.: 290.9-AM3PS-IR ***************************************************************** 75. Sampling of non-point source contamination in high-capacity wells. Zlotnik, V. A.; Spalding, R. F.; Exner, M. E.; Burbach, M. E. Water-sci-technol v.28, p.409-413. (1993). Paper presented at the IAWQ First International Conference on "Diffuse (Nonpoint) Pollution: Sources, Prevention, Impact, Abatement." September 19-24, 1993, Chicago, Illinois. Descriptors: irrigation-; wells-; groundwater-pollution; nitrates-; atrazine-; concentration-; sampling-; nebraska- NAL Call No.: TD420.A1P7 ***************************************************************** 76. Sampling your irrigation water. Neufeld, J.; Balliette, J.; Adams, V. D.; Wheeler, G. Fact-sheet-Max-C-Fleischmann-Coll-Agric,-Coop-Ext-Serv. [Reno, Nev.] : The College,. 1994. (94-28) 2 p. Includes references. Descriptors: irrigation-water; water-quality; salinity-; sodium-; boron-; chloride-; ions-; ph-; bicarbonates-; nitrogen-; hazards-; samples- NAL Call No.: S544.3.N3C66 ***************************************************************** 77. Sealing of cone penetrometer testing holes for ground water protection. Collette, D. A. 1. 1992. xx, 303 leaves : ill.. Vita. Descriptors: Water,-Underground-Louisiana-Sampling; Water,-Underground-Louisiana-Quality; Aquifers-Louisiana NAL Call No.: LU 378.76-L930-1992-coll ***************************************************************** 78. Shallow ground water and surface runoff instrumentation for small watersheds. Cullum, R. F.; Schreiber, J. D.; Smith, S. Jr.; Grissinger, E. H. Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of Agricultural Engineers,. Winter 1991. (912541) 9 p. Paper presented at the "1991 International Winter Meeting sponsored by The American Society of Agricultural Engineers," December 17-20, 1991, Chicago, Illinois. Descriptors: groundwater-; watersheds-; runoff- NAL Call No.: 290.9-Am32P ***************************************************************** 79. Similarity analysis of runoff generation processes in real-world catchments. Larsen, J. E.; Sivapalan, M.; Coles, N. A.; Linnet, P. E. Water-resour-res v.30, p.1641-1652. (1994). Includes references. Descriptors: runoff-; watersheds-; agricultural-land; quantitative-analysis; prediction-; rain-; simulation-models; western-australia; rainfall-runoff-models; eastern-wheat-belt-of-western-australia Abstract: This paper addresses the question of similarity of runoff generation processes between catchments in the eastern wheat belt of Western Australia, and the use of dimensionless parameterizations to quantify this similarity. A spatially distributed rainfall-runoff model, simulating runoff generation by both the infiltration excess (Horton type) and saturation excess (Dunne type) mechanisms, was developed for catchments in the region. Seven small experimental catchments, with field-measured soil hydraulic properties and topography, were used in the study. Following on from the similarity theory developed by Sivapalan et al. (1987), a number of dimensionless similarity parameters were constructed using the field-measured soil and topographic properties, a characteristic length scale, and a characteristic flow velocity. The objective was to determine whether the dominant runoff generation mechanism on a catchment could be reliably predicted by these similarity parameters. This was achieved through sensitivity analyses carried out with the rainfall-runoff model. Two dimensionless parameters, K(*/0) and f*, were found to be critical for characterizing the similarity or dissimilarity of the runoff generation responses between the seven experimental catchments. Within the assumptions of the analysis, two catchments in the wheat belt region can be considered to be hydrologically similar, in terms of their runoff responses, if K(*/0) and f* are identical in both catchments. The dominant mechanism of runoff generation on any catchment can be reliably predicted, provided that the values of K(*/0) and f* are known. A partial quantification of the Dunne diagram. and saturation excess mechanisms, was achieved by artificially varying K(*/0) and f* in the rainfall-runoff model to explore the full range of possible runoff generation responses. NAL Call No.: 292.8-W295 ***************************************************************** 80. A simple analytical methodology for multiresidue pollutant determinations. Tilio, R.; Krishnan, K.; Kapila, S.; Nam, K. S.; Facchetti, S. Chemosphere v.29, p.1849-1858. (1994). In the series analytic: Chlorinated dioxins and related compounds 1993 / edited by H. Fieldler, V.G. Ahlborg, R.E. Clement, O. Hutzinger, A. Riss, S. Safe and L. Stieglitz. Austria. Descriptors: organochlorine-pesticides; polychlorinated-dibenzofurans; organochlorine-compounds; polychlorinated-biphenyls; polycyclic-hydrocarbons; organothiophosphate-insecticides; chemical-analysis; extraction-; pollutants-; sediment-; water-pollution; rivers-; insecticide-residues; missouri-; supercritical-fluid-extraction; polychlorinated-dibenzodioxins NAL Call No.: TD172.C54 ***************************************************************** 81. Soil-gas signatures from volatile chlorinated solvents: borden field experiments. Rivett, M. O. Ground-water. Dublin, Ohio : Ground Water Pub. Co. Jan/Feb 1995. v. 33 (1) p. 84-98. Includes references. Descriptors: polluted-soils; volatile-compounds; organochlorine-compounds; solvents-; soil-air; groundwater-pollution; chloroform-; trichloroethylene-; ontario-; perchloroethylene- NAL Call No.: TD403.G7 ***************************************************************** 82. Soil science research: in the plant science department: 1991 annual report. TB-Agric-Exp-Stn-S-D-State-Univ. Brookings, S.D. : The Station. Oct 1992. (99) 248 p. Descriptors: crop-production; soil-science; farm-management; fertilizers-; crop-yield; soil-testing; plant-nutrition; conservation-tillage; erosion-; field-tests; rotations-; groundwater-pollution; south-dakota NAL Call No.: 100-SO82-3 ***************************************************************** 83. Solar photocatalytic treatment of groundwater at Tyndall AFB: field test results. Goswami, D. Y.; Klausner, J.; Mathur, G. D.; Martin, A.; Schanze, K.; Wyness, P.; Turchi, C.; Marchand, E. Proc-annu-conf-Am-Solar-Energy-Soc p.235-239. (1993). Meeting held April 25-28, 1993, Washington, D.C. Descriptors: groundwater-pollution; detoxification-; solar-radiation; treatment-; florida-; air-force-base NAL Call No.: TJ810.A54 ***************************************************************** 84. Statistical methods for groundwater monitoring. Gibbons, R. D. 1. New York : Wiley, c1994. xii, 286 p. : ill.. Includes bibliographical references (p. 272-279) and index. Descriptors: Groundwater-Pollution-Measurement-Statistical-methods NAL Call No.: TD426.G52--1994 ***************************************************************** 85. Statistical methods for the analysis of lake water quality trends : technical supplement to The lake and reservoir restoration guidance manual. Water quality trends. United States. Environmental Protection Agency. Office of Water. Washington, DC : U.S. Environmental Protection Agency, Office of Water, 1993. 1 v. (various pagings) : ill. 1 computer disk (3 1/2 in.). " ... prepared by the Terrene Institute and Duke University, School of the Environment under EPA Cooperative Agreement No. CX-814969 ... "--P. ii. Descriptors: Water-quality-management-Statistical-methods; Water-Analysis-Statistical-methods; Lake-renewal-Statistical-methods; Eutrophication- NAL Call No.: TD365.S74--1993 ***************************************************************** 86. Statistical techniques for assessing water-quality effects of BMPs. Walker, J. F. J-irrig-drain-eng v.120, p.334-347. (1994). Includes references. Descriptors: farm-management; watersheds-; water-quality; trends-; statistical-analysis; illinois-; best-management-practices NAL Call No.: 290.9-AM3Ps-IR ***************************************************************** 87. Statistics for the environment 2 : water-related issues. Statistics for the environment two. Barnett, V.; Turkman, K. F.; Commission of the European Communities. Chichester ; New York : Wiley, c1994. xiv, 391 p. : ill., maps. "Proceedings of SPRUCE II, the second SPRUCE Conference held in Rothamsted Experimental Station, Harpenden, UK, 13-16 September 1993"--Prelim. Descriptors: Environmental-sciences-Statistical-methods-Congresses; Hydrology-Statistical-methods-Congresses; Rain-and-rainfall-Statistical-methods-Congresses; Sea-level-Statistical-methods-Congresses; Water-Pollution-Statistical-methods-Congresses NAL Call No.: GE45.S73S833--1994 ***************************************************************** 88. A test of procedures for determining the ground water protection list. Johnson, B. R.; California Environmental Protection Agency. Environmental Hazards Assessment Program. Sacramento, Calif. : Environmental Hazards Assessment Program, State of California, Environmental Protection Agency, Dept. of Pesticide Regulation, Environmental Monitoring and Pest Management Branch, [1992] v, 42 p. : map. "August, 1992"--Cover. Descriptors: Groundwater-California-Sampling; Groundwater-Pollution-California; Water-quality-California-Measurement; Wells-California NAL Call No.: GB1001.72.S3T469--1992 ***************************************************************** 89. A test of procedures for determining the ground water protection list : appendix to report EH 92-06. Johnson, B. R.; California Environmental Protection Agency. Environmental Hazards Assessment Program. Sacramento, Calif. : Environmental Hazards Assessment Program, State of California, Environmental Protection Agency, Dept. of Pesticide Regulation, Environmental Monitoring and Pest Management Branch, [1992] 126 p. : ill.. Cover title. Descriptors: Groundwater-California-Sampling; Groundwater-Pollution-California; Water-quality-California-Measurement; Wells-California NAL Call No.: GB1001.72.S3T47--1992 ***************************************************************** 90. Tillage effects on agrichemical movement through the Vadose Zone. Wilson, G. V.; Tyler, D. D.; Storck, N. J.; Essington, M. E.; Mueller, T. G. Tenn-farm-home-sci p.34-39. (1994). Includes references. Descriptors: soil-analysis; water-quality; macropores-; conservation-tillage; groundwater-; infiltration-; leachates-; field-tests; tennessee- NAL Call No.: 100-T25F ***************************************************************** 91. Use and abuse of sample surveys in agroecology. Sparks, T. H.; Firbank, L. G. Asp-appl-biol p.161-170. (1994). In the series analytic: Sampling to make decisions / edited by P. Brain, S.H. Hockland, P.D. Lancashire, and L.C. Sim. Descriptors: sampling-; land-improvement; drainage-; soil-management; flood-control; plantations-; agricultural-land; weed-control; watersheds-; runoff-; runoff-water; nitrate- NAL Call No.: QH301.A76 ***************************************************************** 92. Water quality monitoring on a 2500-acre agricultural watershed at Ames Plantation. Yoder, R. E.; Mote, C. R. Tenn-farm-home-sci p.15-18. (1994). Includes references. Descriptors: water-quality; water-pollution; groundwater-; surface-water; runoff-water; erosion-; conservation-tillage; sampling-; contaminants-; tennessee-; nonpoint-source-pollution; point-source-pollution NAL Call No.: 100-T25F ***************************************************************** 93. Water quality sampling and analysis instruments and procedures. Taylor, L. A.; Izuno, F. T.; Bottcher, A. B. Circ-Fla-Coop-Ext-Serv. Gainesville, Fla. : The Service. Oct 1992. (1040) 10 p. Includes references. Descriptors: water-quality; sampling-; instruments-; ph-; electrical-conductivity; hardness-; nitrogen-; phosphorus- NAL Call No.: 275.29-F66C ***************************************************************** 94. Well sampling for agrichemicals in high capacity systems. Zlotnik, V. A.; Burbach, M. E.; Exner, M. E.; Spalding, R. F. J-soil-water-conserv v.50, p.95-101. (1995). Includes references. Descriptors: groundwater-pollution; point-sources; nitrate-; atrazine-; contamination-; irrigated-sites; wells-; sampling-; aquifers-; nebraska-; non-point-source-pollution; irrigation-wells NAL Call No.: 56.8-J822 ***************************************************************** 95. Well-water quality data from a volunteer sampling program: Audubon County, Iowa. Seigley, L. S.; Hallberg, G. R.; Walther, P. R.; Miller, G. A. J-Iowa-Acad-Sci-J-I-A-S v.100, p.15-20. (1993). Includes references. Descriptors: water-quality; wells-; coliform-count; contaminants-; nitrate-nitrogen; sampling-; volunteers-; water-pollution; iowa- NAL Call No.: Q11.J68 ***************************************************************** 96. What do significance tests really tell us about the environment. McBride, G. B. Environ-Manage v.17, p.423-432. (1993). Includes references. Descriptors: pastures-; groundwater-; water-quality; statistical-analysis; regulations-; soil-ph; usa- NAL Call No.: HC79.E5E5
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