VA DEQ가 EPA의 새로운 NPDES 규정을 인정하고 준수하면서도 중복되고 비용이 많이 들며 불필요한 것으로 쉽게 발견되는 새 규정의 일부를 해결할 수 있는 주 허가를 제안한 것은 다행입니다. 첫 번째 "운영" 기간은 2년으로 하는 것이 좋습니다. 이렇게 하면 해당 허가에 대한 약속 시간을 상당히 짧게 유지하면서 규제 당국이 새로운 일반 허가 초안 작성을 시작할 수 있는 충분한 시간을 확보할 수 있습니다(원하는 경우). 등록 명세서, 수수료 요건을 없애고 개인 기록 및 독점 정보 보고를 최소화함으로써, 제안된 허가는 관련자(대행사 및 신청자)에게 시간과 비용 모두에서 최소한의 비용으로 증명될 수 있습니다.

그러나 VA 버전의 NPDES 허가는 규제 수레바퀴가 움직이기 시작하면 발생하게 될 다른 문제를 해결할 수 없습니다. 한 가지 고려해야 할 점은... 향후 발생할 수 있는 소송에 대해 청정수법의 적용을 받는다는 점입니다.  수중 서식지와 자원을 깨끗하게 유지하고 보존하며 이러한 환경의 지속성을 보장하기 위해 노력하는 기업들은 이러한 유형의 법률에 따라 부과되는 법적 비용으로 인해 큰 영향을 받을 수 있습니다. 

The City of Manassas would like to make these following comments:

The earliest precursor of pollution generated by life forms would have been a natural function of their existence. The attendant consequences on viability and population levels fell within the sphere of natural selection. These would have included the demise of a population locally or ultimately, species extinction. Processes that were untenable would have resulted in a new balance brought about by changes and adaptations. At the extremes, for any form of life, consideration of pollution is superseded by that of survival.

For humankind, the factor of technology is a distinguishing and critical consideration, both as an enabler and an additional source of byproducts. Short of survival, human concerns include the range from quality of life to health hazards. Since science holds experimental demonstration to be definitive, modern treatment of toxicity or environmental harm involves defining a level at which an effect is observable. Common examples of fields where practical measurement is crucial include automobile emissions control, industrial exposure (e.g. Occupational Safety and Health Administration (OSHA) PELs), toxicology (e.g. LD₅₀), and medicine (e.g. medication and radiation doses).

"The solution to pollution is dilution", is a dictum which summarizes a traditional approach to pollution management whereby sufficiently diluted pollution is not harmful.^[35][36] It is well-suited to some other modern, locally scoped applications such as laboratory safety procedure and hazardous material release emergency management. But it assumes that the dilutant is in virtually unlimited supply for the application or that resulting dilutions are acceptable in all cases.

Such simple treatment for environmental pollution on a wider scale might have had greater merit in earlier centuries when physical survival was often the highest imperative, human population and densities were lower, technologies were simpler and their byproducts more benign. But these are often no longer the case. Furthermore, advances have enabled measurement of concentrations not possible before. The use of statistical methods in evaluating outcomes has given currency to the principle of probable harm in cases where assessment is warranted but resorting to deterministic models is impractical or unfeasible. In addition, consideration of the environment beyond direct impact on human beings has gained prominence.

Yet in the absence of a superseding principle, this older approach predominates practices throughout the world. It is the basis by which to gauge concentrations of effluent for legal release, exceeding which penalties are assessed or restrictions applied. The regressive cases are those where a controlled level of release is too high or, if enforceable, is neglected. Migration from pollution dilution to elimination in many cases is confronted by challenging economical and technological barriers.http://en.wikipedia.org/wiki/Pollution http://www.private-medical-insurances.co.uk/ http://www.car-tinted.com