2 edition of Sensitivity of Colorado aquifers to pesticide contamination found in the catalog.
Sensitivity of Colorado aquifers to pesticide contamination
Maurice D. Hall
|Other titles||Colo. aquifer sensitivity|
|Statement||by Maurice D. Hall, in cooperation with Colorado State University Cooperative Extension [et al.] ; prepared for the Colorado Department of Agriculture and the Colorado Department of Public Health and Environment.|
|Contributions||Colorado. Dept. of Agriculture., Colorado. Dept. of Public Health and Environment., Colorado State University. Cooperative Extension Service.|
|LC Classifications||GB1199.3.C6 H25 1998|
|The Physical Object|
|Pagination||23 leaves :|
|Number of Pages||23|
|LC Control Number||99207784|
Contact Info. University Ave. Colorado State University Fort Collins CO Bldg.: Plant Sciences C Voice: Fax: Remediation of aquifers contaminated with organic chemicals is a topic of public concern as well as of considerable scientific, engineering and regulatory interest. prepared chapters for two different books, and given several lectures about this research project. Nitrate and Pesticide Contamination in the Subsurface Environment.
The hydraulic conductivity index values assigned to the New Mexico aquifer media types were assigned to their matching aquifer media types in Colorado: Hydraulic conductivity in units of gallon-per-day per square-feet Assigned DRASTIC index value unconsolidated sand and gravel aquifers, 2; carbonate-rock aquifers, 10; sandstone aquifers, 1. Perhaps there is a reasonable way to resolve this dilemma in the case of transboundary aquifers. Given the sensitivity of aquifers to pollution and the near impossibility of decontamination, it is reasonable to assert that for any aquifer, but particularly for transboundary aquifers, the principle of no significant harm must have priority.
Get this from a library! Assessments of aquifer sensitivity on Navajo Nation and adjacent lands and ground-water vulnerability to pesticide contamination on the Navajo Indian Irrigation Project, Arizona, New Mexico, and Utah. [Paul J Blanchard; Navajo Nation, Arizona, New Mexico & Utah.; United States. Environmental Protection Agency. Office of Pesticide Programs.;. Digital map of aquifer boundary for the High Plains aquifer in parts of Colorado, Kansas, Nebraska Digital coverages in Charles Mix County - Compilation of data to support development of a pesticide management plan. Attribution: Dakota Downloadable Digital Data representing Sensitivity of Ground Water to Contamination in Lawrence County.
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Sensitivity of Colorado aquifers to pesticide contamination: A regional-scale hydrogeologic analysis [Maurice D Hall] on *FREE* shipping on qualifying : Maurice D Hall. Hall, M. D.:‘Sensitivity of Colorado aquifers to pesticide contamination: A regional-scale hydrogeologic analysis’, Report for the Colorado Department of Agriculture and The Colorado Department of Public Health and Environment, by: Stephanie A.
Schlosser's 3 research works with 36 citations and 89 reads, including: Sensitivity of a Pesticide Leaching-Potential Index Model to Variations in Hydrologic and Pesticide-Transport.
13 Groups of Pesticides 14 Transport Processes in Soil and Ground Water Sensitivity of Colorado aquifers to pesticide contamination book Fate of Pesticides 19 Management Practices Affecting the Fate and Transport of Pesticides, 21 SELECTED BIBLIOGRAPHY 23 AQUIFER SENSITIVITY AND GROUND WATER VULNERABILITY ASSESSMENT METHODS 27 INTRODUCTION TO ASSESSMENT METHODS 27 Input data to the neural network included the categorical indices of depth to aquifer material, pesticide leaching class, aquifer sensitivity to pesticide contamination, time (month) of sample.
General Study Guide: () All individuals seeking a commercial pesticide applicator’s license must take the General test.
When you order a General Study guide, you will also receive a copy of the “Colorado Pesticide Applicators’ Act” and the “Rules and Regulations Pertaining to the Administration and Enforcement of the Pesticide Applicators’ Act” so you can learn the laws. Assessments of Aquifer Sensitivity on Navajo Nation and Adjacent Lands and Ground-Water Vulnerability to Pesticide Contamination on the Navajo Indian Irrigation Project, Arizona, New Mexico, and Utah Prepared in cooperation with the NAVAJO NATION ENVIRONMENTAL PROTECTION AGENCY PESTICIDES PROGRAM U.S.
DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL. Pesticide resistance “Resistance may be defined as a heritable change in the sensitivity of a pest population that is reflected in the repeated failure of a product to achieve the expected level of control when used according to the label recommendation for that pest species” ().Resistant individuals tend to be rare in a normal population, but indiscriminate use of chemicals can.
Pesticide contamination of groundwater is a subject of national importance because groundwater is used for drinking water by about 50 percent of the Nation's population.
This especially concerns people living in the agricultural areas where pesticides are most often used, as about 95 percent of that population relies upon groundwater for.
The Colorado Department of Agriculture's Pesticides Program regulates the distribution and use of pesticides in the state to prevent adverse impacts to the public and the environment.
Sign-up your Email Address for your Applicator Business and Individual License Here. Groundwater resources from alluvial and bedrock aquifers of the Denver Basin are critical for municipal, domestic, and agricultural uses in Colorado along the eastern front of the Rocky Mountains.
Rapid and widespread urban development, primarily along the western boundary of the Denver Basin, has approximately doubled the population since aboutand much of the population depends on. p. Aquifer sensitivity refers to the relative ease with which a pesticide can migrate to an aquifer of interest, and is a function of the intrinsic properties of the aquifer and overlying geologic materials.
Aqui fer sensitivity is not dependent on land-use practices or pesticide properties. Aquifer vulnerability refers to. Pollution of groundwater is a primary issue because aquifers are susceptible to contamination from land use and anthropogenic impacts.
Groundwater susceptibility is intrinsic and specific. Intrinsic vulnerability refers to an aquifer that is susceptible to pollution and to the geological and hydrogeological features. Technical Report: Screening methods for groundwater pollution potential from pesticide use in Colorado agriculture.
Results of sensitivity analysis of the TLPI can be used to show that groundwater pesticide contamination depends on hydrological, pesticides and soil properties, and climatic conditions. However, soil characteristics, pesticides properties and climatic conditions appeared to be key factors in evaluating vulnerability in a hypothetical.
The aquifer sensitivity map (described in Section IV) also indicates that both of theses areas rank from moderate to highly sensitive to contamination from nitrate. Figure 3.
Locations of Samples with Pesticide Detections and/or in Exceedance of Drinking Water. An example of this type of groundwater contamination is represented by the role of the Arkansas River in the contamination of the aquifers in western Kansas.
The Arkansas River is a draining river of surface water contaminated by pollutants of the big farms in Colorado. This type of water flows downstream through Kansas. Wells were selected based on the importance of an aquifer to a region, known application and storage of pesticides in the area, and the vulnerability of the aquifer to contamination.
Risk analyses indicated that selected pesticides can pose a contamination threat to an unconfined aquifer in areas consisting primarily of sandy loam soil; sandy loam soils are common in the San Luis Valley.
Water-quality samples collected from some wells during and indicated trace- to low-level pesticide contamination. The environmental sensitivity of the greenhouse location; of drinking water contamination by pesticides.
Colorado Senate Bill requires bulk storage facilities that annually handle more than 3, pounds (or gallons) of bulk formulated pesticide to meet specified variables affecting aquifer vulnerability. The use of pesticides is a potential threat to local groundwater. Once groundwater is contaminated, it is very difficult to clean.
Thus, it is of importance to assess the risk of contaminating local groundwater at an early stage when pesticides are found in soils. This knowledge will also help in remediation strategies. Traditional methods of deterministic analysis cannot explicitly account. Already, 14 percent of all Ogallala irrigation wells tested contained one pesticide or more.
Most common was Atrazine. This herbicide, used ubiquitously .U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Colorado Springs, Colorado, September, Water-Resources Investigations Report Vulnerability of Water from Public Supply Wells to Contamination by Pesticides, Potomac-Raritan-Magothy Aquifer System, New Jersey Coastal Plain.