Water Standards Issues in Urban Planning
The objective of this work in writing is to develop and articulate persuasive research-oriented arguments related to planning practice. This work will define the problem, present theories and cases, summarize, and highlight the salient points from those theories and cases that are found to formulate a plausible solution to the problem.
The planning process for urban runoff urban water standards must be based on regulations that make a requirement of specific programs relating to approaches in planning. Different regulations make a requirement of different approaches in planning. The planning process addressed in this work is that of watershed management and this specific planning process requires the following:
(1) Regulatory Basis -- SOWA
(2) Determining Existing Conditions -- Development of Watershed Description
(3) Quantifying pollution sources and water resource impacts -- identification of detrimental characteristics;
(4) Assessment of alternatives -- conduction of risk assessment; and (5) Development and implementation of recommended plan -- development of detrimental activities control plan. (Environmental Protection Agency, )
I. Nonpoint Source Pollution
The problem addressed in this study is that of nonpoint source pollution and the necessary action plan to be implemented in this type of situation. Nonpoint source pollution results in alteration to the natural habitat and has been cited as the reason for the majority of water quality problems near various bodies of water including lakes, tributaries, and coastline. Nonpoint source pollution (NPS) is the "introduction of pollutants into a system through a non-direct or unidentified route." (Ambrosio, Lawrence, and Brown, nd) Potential sources of NPS pollution include such as "agriculture and forestry practice, septic systems, recreational boating, urban runoff, construction, and physical changes to stream channels…" (Ambrosio, Lawrence, and Brown, nd) It is reported that the term 'nonpoint' "is used to distinguish it from point source pollution" which is pollution derived from specific sources. (Ambrosio, Lawrence, and Brown, nd) NPS pollution is stated to be most often associated "with rainfall or melted snow that runs over land or through the group, picks up pollutants, and deposits them into rivers, lakes, and oceans. NPS pollution can occur just about anywhere, but especially where activities disturb the land or water, and where paved surfaces allow pollutants to flow directly into the waterways." (Ambrosio, Lawrence, and Brown, nd) Common NPS pollutants are stated to include the following pollutants and sources:
PS Pollutants Sources
Sediment
Construction Sites Mining Areas Agricultural Lands Logged Areas Bank/Shore Erosion Grazed Areas
Nutrients Agricultural Lands
(Fertilizers, Grease, Nurseries, Orchards Organic Matter) Livestock Areas Lawns, Forests Petroleum Storage Areas Landfills
Acids and Salts
Irrigated Lands Mining Areas Urban Runoff, Roads, Parking Lots Landfills
Heavy Metals Mining Areas
(Lead, Mercury, Vehicle Emissions Zinc) Urban Runoff, Roads, Parking Lots Landfills
Toxic Chemicals Agricultural Lands
(Pesticides, Organic, Nurseries, Orchards Inorganic Building Sites Compounds) Gardens, Lawns Landfills
Pathogens Domestic Sewage (Bacteria, Viruses) Livestock Waste Landfills
Source: Ambrosio, Lawrence, and Brown
II. Issues in Urban Water Standards
Ambrosio, Lawrence and Brown (nd) report that protection of water quality in urban areas is difficult due to: (1) different amounts and types of pollutants; (2) large amounts of runoff; (3) limited areas suitable for surface water runoff treatment systems; (4) high costs associated with structures to control runoff; and (5) destruction or absence of riparian zones that can filter pollutants and prevent erosion of stream banks and shorelines. (Ambrosio, Lawrence, and Brown, nd) The executive summary report of the urban water quality standards planning for the state of Iowa reports that the cornerstone of the vision in the state of Iowa for the reduction and remediation of nonpoint source pollution in the waterways of Iowa "is the ability of stakeholder groups and agencies at the federal, state and local levels to collaborate, cooperate and coordinate efforts." (University of Northern Iowa, Institute for Decision-Making, 2011) Five issues were identified by the urban work group as follows:...
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