nonpoint source

nonpoint source

[‚nän′pȯint ‚sȯrs]
(civil engineering)
A dispersed source of stormwater runoff; the water comes from land dedicated to uses such as agriculture, development, forest, and land fills and enters the surface water system as sheet flow at irregular rates.
References in periodicals archive ?
Tenders are invited for RFP Indian Tribes and Intertribal Consortia for Nonpoint Source Management Grants Under Clean Water Act (CWA) Section 319
Agriculture, though, has been exempted from many of the regulations and permit requirements, mostly due to the concept of nonpoint source pollution.
The IG report acknowledges that the challenge of achieving nutrient reductions in the Mississippi-Atchafalaya Basin is complicated by the size of the Mississippi River watershed, which is the third-largest in the world; lack of Clean Water Act authority over nonpoint source pollution arising from agricultural activities; and competing environmental priorities.
The state works with watershed associations and the federal government to list certain priority watersheds in need of restoration, identified through the development of an approved Section 319 Nonpoint Source Watershed Implementation Plan.
The nonprofit Manchaug Pond Foundation announced recently it had received a "Section 319'' nonpoint source pollution grant totaling $208,525, according to Vice President Marty Jo Henry.
In numerical analysis, we find that the regulator reacts to its problem of incomplete information by increasing its cost-share ratios and, in some cases, providing additional rent to the low-cost nonpoint source.
Researchers working in environmental planning and related fields address the markets that are developing in the US in ecosystem services, for wetlands, streams, nonpoint source water pollutants, and habitat conservation; marketing activities related to water quality; state legislation that permits water exchanges where instream demanders are beginning to be legitimized as one of the traders; and how various types of auctions can be used to provide for increased stream flows needed to accommodate instream uses and mitigation credits when pumping reduces groundwater supplies.
manure down the field, making this a discharge from a nonpoint source.
Unlike pollution that comes from specific industrial factories, sewage treatment plants and other easily discernible 'points', nonpoint source pollution comes from many diffuse sources, but in the aggregate creates a formidable challenge for municipal, state and federal environmental and water control authorities.
Nonpoint source pollution generally results from land runoff, precipitation, atmospheric deposition, or percolation rather than from a discharge at a specific, single location.