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Clean Water Act

Clean Water Act

The Federal Water Pollution Control Act Amendments of 1972, commonly referred to as the Clean Water Act, is one of the most important and far-reaching environmental statutes ever passed by the U.S. Congress. It is still one of the most controversial pieces of legislation ever passed. More than 30 years since its passage, key provisions of the act continue to be debated at all governmental levels, and lawsuits frequently are brought to federal courts under the act. To understand why the Clean Water Act remains controversial, it is necessary to review the history of the legislation, its goals, and its methods of achieving those objectives.

Water Quality as a National Interest

The 1972 Clean Water Act represented a radical departure from previous federal water quality legislation. Beginning in 1948, Congress declared it to be in the "national interest" to assure a high level of water quality throughout the United States. It passed additional water pollution control laws in 1956, 1961, 1965, 1966, and 1970.

While each subsequent act was more stringent than the previous ones, they all contained the philosophy that water quality was primarily the responsibility of the states. It was the role of the federal government to assist the states financially, to conduct basic water research, and to maintain water quality in interstate waters. But the creation and enforcement of quality standards for most of the waters in the United Statesintrastate lakes, rivers, streams, wetlands , and pondswere left to state and local governments.

Federal Responsibility.

The 1972 Clean Water Act abandoned the approach that state and local governments were primarily responsible for ensuring water quality. In the midst of a national environmental movement, whose leaders claimed that virtually nothing had been achieved by relying on state action to reduce water pollution, the 92nd Congress embarked upon a bold new course. Although the 1972 act incorporated some elements contained in previous legislation, such as generous financial assistance to state, tribal, and local governments to construct wastewater treatment facilities, it also charted new waters in federal regulatory policy, and in relations between the federal government and the states.

Regulatory Objectives

The regulatory philosophy contained in the Clean Water Act is referred to as the command-and-control, or standards-and-enforcement, method. No longer would the federal government wait for the states to devise their own water quality standards, since few had done so when given the opportunity. Rather, Congress gave this responsibility to a new federal agency, the Environmental Protection Agency (EPA). Under authority contained in the 1972 legislation, the EPA had primary responsibility for implementing the ambitious and optimistic goals of ensuring that all waters of the United States be "fishable" and "swimmable" by 1983, 10 years after the act's passage.

The 1972 Clean Water Act also set as a lofty goal the "zero discharge" of pollutants into the nation's waters by 1985. Congress passed related legislation also at this time to ensure that its intent to cover all waters of the United States was clear. In 1972, Congress passed the Marine Protection, Research, and Sanctuaries Act, known as the Ocean Dumping Act, and in 1974 the Safe Drinking Water Act. The EPA was given authority to implement these acts as well.

Rigorous Demands.

In order to make as much progress as possible in cleaning up the nation's waters in a short period of time, the EPA embarked upon what is called a "technology-forcing" regulatory strategy. That is, the agency placed rigorous and rigid demands on those who were regulated by the statutemainly municipalities and industries at firstto achieve increasingly higher levels of pollution abatement. Industries were told to install the "best practicable control technology" by 1977, and municipalities were told to achieve secondary treatment of their wastewater by that date.

Federal Construction Grants.

To assist local governments in meeting these deadlines, the 1972 act also provided for a generous federal grant program to construct modern treatment facilities. Indeed, much of the nation's water quality infrastructure was built in the 1970s, and an issue for today's politicians in Washington, D.C., is whether to make a similar investment in bringing an aging system up-to-date. The EPA has estimated that it could cost as much as $140 billion to accomplish that objective.


The 1972 Clean Water Act has been amended three times: in 1977; in 1981 when Congress passed the Municipal Wastewater Treatment Construction Grants Amendments; and in 1987 with the Water Quality Act. All of these statutes reaffirmed the federal interest in assuring water quality in the United States, but they also recognized the difficulty of achieving the goals set forth in the 1972 act within the time period specified. Thus, timelines were pushed forward, and the rigid command-and-control regulatory approach was modified. It was replaced, in part, by a more flexible approach that stressed partnerships between the federal government and the states, tribal governments, and municipalities in achieving common purposes.

Sources of Pollution.

Another important distinction between the original act and the 1987 revision was in its emphasis on the sources of water pollution in the United States. Prior to 1987 most programs were directed at eliminating what is called point-source pollution: that is, discharges into water that are more or less easily tracked to their sources. Pipes and other outfalls are examples of point-source pollution.

By 1987, however, it became clear that a great deal of pollution was coming from nonpoint sources. It was estimated that over 50 percent of the nation's remaining water pollution problems was coming from sources that are not easily identified, such as runoff from agricultural lands, construction sites, urban areas, and even forests.

Under Section 319 of the 1987 legislation, Congress authorized measures to address these diffuse sources of pollution by directing states to develop and implement management programs targeting their major nonpoint sources. Federal grants, covering up to 60 percent of the program costs, also were authorized to assist states in tackling this difficult pollution problem.

Overdue Reassessment?

There has not been a major revision to the Clean Water Act since 1987, and many feel that a comprehensive reassessment of accomplishments and failures is long overdue. The reason that such legislation has been stalled in Congress for so long is that the original 1972 act contained a few highly controversial programs, the most contentious of which may be the national wetlands protection program. Also known as the Section 404 Program, the 1972 act declared a federal interest in the protection of all wetlands in the United States. It set up a complex regulatory program administered jointly by the U.S. Army Corps of Engineers and the EPA under which anyone planning to dredge, drain, or fill a wetland must first secure a permit from the Corps.

The EPA exercises veto authority over Corps decisions, while other federal agencies, in particular the U.S. Fish and Wildlife Service, provide additional input to the process. Although the process has been streamlined and simplified since its inception, it remains controversial for property owners wishing to alter their lands. Certain states, too, have claimed that the program is an unwarranted intrusion into their domain; in contrast, most environmental organizations solidly support it.

Issues of Contention.

Over the years, numerous court cases have addressed various issues concerning the wetlands protection program. A 2001 Supreme Court case, Solid Waste Agency of Cook County, Illinois, v. U.S. Army Corps of Engineers, found that federal jurisdiction did not extend to isolated wetlands such as the one Cook County planned to alter. With this important decision, the scope of the national wetlands protection program is reduced and returned to what it was some 30 years agoat least until Congress revisits this aspect of the Clean Water Act.

Another contentious issue arising out of the Clean Water Act and its revisions involves the setting of precise water quality standards by the states and the EPA. The original act required states to identify pollution-impaired water areas and then develop "total maximum daily loads" (TMDLs) for each waterbody. TMDLs are the maximum amount of pollution that a waterbody can receive without violating water quality standards. If the state fails to act, then the EPA is required to undertake this time-consuming and technologically challenging determination.

Most states have lacked the resources to undertake this task, and the EPA has been reluctant to step in and assume responsibility, in part because it, too, lacks the necessary personnel to do the job nationwide. Consequently, since the late 1980s, citizen groups have filed more than forty lawsuits in thirty-eight states against the EPA and the states for failing to implement the TMDL requirement. During the Clinton administration, the EPA attempted to strengthen the enforcement of this program, but with the change in the presidency after the 2000 election, that proposal has been tabled. As with the wetlands issue, scholars and other interested parties note that the time has come for the U.S. Congress to revisit the Clean Water Act of 1972.

Aspirations and Deficiencies

If and when Congress reconsiders this historic piece of legislation, it will want to look closely at what has been accomplished, and by what means. The Clean Water Act is not without its critics. Even the EPA acknowledges that the results are mixed: Today, 40 percent of the waters surveyed by the states fail to meet national water quality standards.

Although the Clean Water Act was well intentioned, some scholars have found it to be an instance of flawed public policy-making. Cornell University political scientist Theodore Lowi wrote in 1979 that Congress knew nothing about water pollution when it was writing the act, and so simply mandated a regulatory agency, the EPA, to do whatever it saw fit. This was a recipe for political chaos, Lowi charged, which inevitably would result in the federal courts becoming deeply involved in the water pollution control policy process. Indeed they have, as noted earlier.

Another critic of federal pollution control policy, Barry Commoner, a scientist and spokesperson for the environmental movement for nearly 50 years, wrote in a 1990 book that both the Clean Water and Clean Air Acts relied far too much on "control" and too little on "prevention." Noting that waste, once produced, has to go somewhere, the federal approach has been largely to try to control the effects of municipal, industrial, and agricultural waste production. The EPA should have spent more time working on the causes; that is, in preventing it in the first place, through such measures as recycling, reducing, and reusing (known as "the three Rs" of conservation).

The Clean Water Act of 1972 and its revisions spoke to the highest aspirations of the American people with regard to the environment they wished to inhabit. Although deficient in a number of ways, it nevertheless pointed the direction society needed to take to insure the continuance of a healthy and productive natural environment. The task of politicians today is to discover more efficient means, including the development of new technologies, in order to achieve the objectives set forth in 1972.

see also Environmental Movement, Role of Water in the; Environmental Protection Agency, U.S.; Fish and Wildlife Service, U.S.; Legislation, Federal Water; Pollution of Lakes and Streams; Pollution Sources: Point and Nonpoint; Safe Drinking Water Act; Wastewater Treatment and Management.

Jeanne Nienaber Clarke


Adler, Robert W., J. C. Landman, and D. M. Cameron. The Clean Water Act: 20 Years Later. Washington, D.C.: Island Press, 1993.

Commoner, Barry. Making Peace with the Planet. New York: Pantheon, 1990.

Loeb, Penny. "Very Troubled Waters." U.S. News and World Report 125, no. 12 (September 28, 1998):39, 4142.

Schneider, Paul. "Clear Progress, 25 Years of the Clean Water Act." Audubon (September/October 1997):3647, 106107.

Internet Resources

EPA Beach Watch Webpage. U.S. Environmental Protection Agency. <>.

U.S. Code Chapter 26: Water Pollution Prevention and Control. Legal Information Institute, Cornell Law School. <>.

30th Anniversary of the Clean Water Act. Year of Clean Water 2002. <>.


The 1972 Clean Water Act contained the philosophy that all discharges into the nation's waters are unlawful unless specifically authorized by a permit obtained from the Environmental Protection Agency (EPA). Under Section 402 of the act, the National Pollutant Discharge Elimination System (NPDES) was created, covering more than 65,000 industrial and municipal dischargers.

An NPDES permit requires industries to attain the best practicable control technology applicable to each pollutant discharged, and for municipalities at least secondary treatment of their discharges. Permits are issued for 5 years and must be renewed to allow for continued discharges. Permit holders must maintain records of their activities, and they must carry out effluent monitoring.

The NPDES permit, containing effluent limitations on what may be discharged by any single source, is the principal enforcement tool of the Clean Water Act. The EPA may issue compliance orders, or bring civil suits in U.S. District Court against persons who violate the terms of their permit. Penalties for noncompliance can range from $25,000 per day to as much as $250,000 a day, 15 years in prison for "knowing endangerment" of public health, or both. In addition, individuals may bring a citizen suit in district court against persons who are suspected of violating the NPDES permit process.

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Clean Water Act

Clean Water Act

The Clean Water Act is a U.S. federal law that regulates the discharge of pollutants into the nation's surface waters, including lakes, rivers, streams, wetlands, and coastal areas. Passed in 1972 and amended in 1977 and 1987, the Clean Water Act was originally known as the Federal Water Pollution Control Act. The Clean Water Act is administered by the U.S. Environmental Protection Agency (EPA), which sets water quality standards, handles enforcement, and helps state and local governments develop their own pollution control plans.

The original goal of the Clean Water Act was to eliminate the discharge of untreated waste water from municipal and industrial sources and thus make American waterways safe for swimming and fishing (the use of surface water for drinking purposes is covered under separate legislation, the Safe Drinking Water Act). Toward this end, the federal government provided billions of dollars in grants to finance the building of sewage treatment facilities around the country. The Clean Water Act also required businesses to apply for federal permits to discharge pollutants into waterways, as well as to reduce the amount of their discharges over time.

The Clean Water Act has been credited with significantly reducing the amount of pollution that enters the nation's waterways from "point sources," or municipal and industrial discharges. As of 1998, 60 percent of American lakes, rivers, and shoreline were considered clean enough for swimming and fishing. "In the years following passage of the Clean Water Act, the EPA largely succeeded in stemming the 'point source' discharges of big industrial and municipal offenders, whose pipes spewed chemicals directly into oceans, rivers, lakes, and streams," wrote Jeff Glasser and Kenneth T. Walsh in U.S. News & World Report. "It has become clear, however, that 'point source' pollution is only part of the problem."

By the late 1990s, the EPA had changed its focus under the Clean Water Act to emphasize eliminating nonpoint source pollution, like chemicals from agricultural runoff or erosion from logging or construction activities. In a 2000 report to Congress, the EPA cited these diffuse sources of pollution as the top factors making the remaining 40 percent of the nation's waterways too polluted for swimming or fishing. As scientists increasingly recognized the value of wetlands in filtering out pollution, the EPA also began to emphasize wetlands protection under the Clean Water Act. Businesses must be aware of the expanding applications of the Clean Water Act. The law can affect not only discharges of pollution from factory pipes, but also incidental pollution resulting from the activities of smaller enterprises, such as residential development or the construction of a golf course or office building.


Under the Clean Water Act, the EPA sets national water quality criteria and specifies levels of various chemical pollutants that are allowable under these criteria. The discharge of regulated chemicals into surface waters is controlled by the National Pollutant Discharge Elimination System (NPDES), which requires polluters to obtain federal permits for every chemical they discharge. The permits, which can be issued by the EPA or by state government agencies, gives a business or municipality the right to discharge a limited amount of a specific pollutant. The NPDES has been criticized by industry groups for issuing ambiguous regulatory policies and causing long delays in granting permits. In 2000, the EPA sought to address these concerns through a number of initiatives designed to streamline the permit process for municipal and industrial discharges of wastewater.

The EPA also took steps toward cleaning up polluted waterways and regulating nonpoint source pollution in 2000. The agency introduced new rules that encouraged individual states to identify dirty waterways and establish standards to help eliminate sources of pollution. The states were required to come up with a maximum amount of pollution that each waterway could absorb. This measurement was known as the Total Maximum Daily Load (TMDL). Then the states had to decide which local landowners or businesses needed to reduce their pollution levels to meet the TMDL. The states were also required to evaluate future development plans near the waterways to make sure they would not increase pollution levels.

It soon became clear that the TMDL program would be very controversial. "At the heart of the controversy is a long-neglected provision of the Clean Water Act that requires states to identify rivers and lakes too polluted to meet water-quality standards for fishing and swimming," Margaret Kriz explained in National Journal. "Under the watchful eye of the EPA, each state must rank its waterways for cleanup and develop site-specific plans for curbing pollution flowing into the water body."

Some cities and industry groups worried that the new provisions would discourage development along already-polluted waterways and restrict the rights of property owners. Others complained that compliance with the new regulations would be too expensive. Finally, some people claimed that the new regulations served only to expand the EPA's influence over state and local government matters. But former EPA director Carol Browner disagreed with this assessment. "There's been a certain amount of misinformation about this being a top-down, one-size-fits-all approach. That's not true," Browner told Kriz. "The TMDL approach is led by the states. They assess the pollution levels of their own waters, and they make the key decisions about reducing pollution in each body of water based on state water-quality standards."

Another area of controversy involves the regulation of wetlands and the need to obtain federal permits to build on a wetland. Under the provisions of the Clean Water Act, the U.S. Army Corps of Engineers has jurisdiction over navigable waterways and associated wetlands. Two consolidated law suitsCarabelli v. United States Army Corp of Engineers and United States v. Rapanosare scheduled to be heard by the U.S. Supreme Court in the summer of 2006. In each case there is a dispute as to whether a particular wetland falls under the jurisdiction of the Clean Water Act. The ruling in these cases will determine whether and when a non-navigable and even man-made waterway, such as a ditch or storm-sewer system, can be considered a "navigable water" under the Clean Water Act and thus be subject to federal permitting requirements. These cases are being watched very closely by builders, developers, and municipalities since their outcome will have a bearing on the permitting requirements for all future developments on and/or near wetlands.

As with most regulatory laws, clarifications of the law are ongoing. Businesses involved in any way with more than a limited, non-industrial use of water must follow developments related to the protection of waterways.

see also Environmental Law and Business


Agnese, Braulio. "Legal Action." Builder. January 2006.

Glasser, Jeff, and Kenneth T. Walsh. "A New War over the Nation's Dirty Water." U.S. News and World Report. 17 July 2000.

Hoover, Kent. "Builders: 'Clarification' of Wetlands Law Illegal." Business First of Buffalo. 21 August 2000.

Kriz, Margaret. "Testing the Waters at the EPA." National Journal. 22 April 2000.

Marriott, Betty Bowers. Environmental Impact Assessment: A Practical Guide. McGraw-Hill, 1997.

O'Reilly, Brendan. "EPA, Lawmakers, and Timber Fight to the End." Arkansas Business. 11 December 2000.

Steinway, Daniel M. "Court Case Offers Prospect of Liability Protection under the Clean Water Act." Corporate Counsel. October 2000.

                                Hillstrom, Northern Lights

                                  updated by Magee, ECDI

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During the 1960s, the Cuyahoga River in Ohio caught fire, Lake Erie was so polluted it was said to be dying, and human sewage and pollution commonly killed fish in the nation's rivers and streams. Public concern grew so overwhelming that the United States Congress enacted the Federal Water Pollution Control Act of 1972 over the veto of President Richard Nixon. The law, commonly known as the Clean Water Act, set two national goals: elimination of the discharge of pollutants into the nation's waters, and achievement of water quality to protect fishing and swimming. Pollutants from industrial and sewage treatment plants and runoff from city streets and farmlands can contain organic pollutants, including sewage and toxic substances such as heavy metals and chemicals. If poorly controlled, these pollutants can cause diarrhea, cancer, and other serious diseases.

Clean water is essential to the health of all Americans for drinking water, swimming, and other water recreation; as well as for the health of fish and all aquatic life. Between 1972 and 1998, the United States has doubled the amount of water clean enough for fishing and swimming. In addition, wetland losses have dropped dramatically and the number of people served by modern sewage treatment plants more than doubled, to 173 million, in 1998.

The U.S. Environmental Protection Agency (EPA), along with other federal, state, tribal, and local agencies administer programs that regulate the discharge of pollutants and the dredging and filling of waterways and wetlands. Wastewater discharge pipes from industrial or sewage treatment plants are point sources, and they require a permit based on available treatment technologies and water quality standards. As a result of amendments made to the Clean Water Act in 1977, limits have been established for over one hundred pollutants discharged by fifty-one different kinds of industry.

In 1998, pollution runoff became the leading cause of water pollution in the United States. These diffuse, nonpoint sources of water pollution may contain soil, pesticides, fertilizers, oil, grease, and animal wastes from farmlands, streets, parking lots, and construction sites. Since amendments to the Clean Water Act in 1987, the EPA has expanded the number of these sources that require a permit.

In 1998, approximately 450,000 animal feeding operations existed throughout the United States, ranging from small livestock facilities to large, concentrated animal feeding operations for cattle, hogs, and chickens. Pollution from these sources can cause significant environmental and public health problems, including algae growth in surface water, contamination of drinking water supplies, fish kills, and odor problems. Ponds and lagoons that store manure and other liquid waste can overflow during heavy rainfalls or lagoon walls can break, sending bacteria, hormones, and antibiotics into waterways. The EPA is developing permit programs for the approximately 6,600 concentrated animal feeding operations.

The Watershed Approach Framework developed by the EPA in 1996 seeks to go beyond political, social, and economic boundaries by designing and applying programs to control the many sources of pollution in an area draining into a river or other body of water. One watershed approach involves calculating the maximum amount of pollutants that a body of water can receive from all contributing point and nonpoint sources. Agencies can use this "total maximum daily load" to allocate pollution limits among various sources. The nation's clean water laws have evolved from regulating direct discharges of organic and toxic pollutants to a system controlling diffuse, nonpoint sources of pollution. The watershed approach goes one step further by looking at all the sources of water pollution in a geographic area.

Sharon Newsome

(see also: Acid Rain; Drinking Water; Groundwater; Groundwater Contamination; Land Use; Municipal Solid Waste; PCBs; Pesticides; Wastewater Treatment; Water Quality )


Copeland, C. (2000). Water Quality: Implementing the Clean Water Act. Washington, DC: Congressional Research Service. The National Council for Science and the Environment.

U.S. Environmental Protection Agency (1998). Wastewater Primer. Washington, DC: Office of Water, Environmental Protection Agency.

(2000). Water Quality Conditions in the United States: A Profile from the 1998 National Water Quality Inventory Report to Congress. Washington, DC: Office of Water, Environmental Protection Agency.

(2000). Atlas of America's Polluted Waters. Washington, DC: Office of Water, Environmental Protection Agency. (EPA documents available at

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Clean Water Act


CLEAN WATER ACT. The Federal Water Pollution Control Act of 1972, commonly called the Clean Water Act (CWA), filled ninety pages of the Statutes at Large. The 1987 amendments to the CWA, officially called the Water Quality Act of 1987, added eighty-two pages. Although the 1987 amendments contributed substantially to the CWA's mass, complexity, and breadth, they did not fundamentally alter the act's scope, except perhaps in the area of nonpoint pollution. The 1987 amendments were the first changes to the CWA since 1977.

The One Hundredth Congress deliberately made the Water Quality Act of 1987 its inaugural piece of legislation. The Ninety-ninth Congress, after much deliberation, had passed essentially identical legislation in 1986, but on 30 January 1987, President Ronald Reagan vetoed that effort. Congress, however, overrode Reagan's veto on 4 February 1987 by a vote of 401 to 26 in the House of Representatives and 86 to 14 in the Senate.

The 1987 amendments built upon the existing framework of the CWA in four important ways. First, the amendments imposed new standards and permitting requirements, including new regulations regarding toxic pollutants and storm water runoff. In addition, the amendments created new protections for national estuaries and for certain aquatic "treasures" such as the Chesapeake Bay and the Great Lakes. Second, the 1987 amendments attempted to better define the federal-state partnership in water pollution control management. Generally, the 1987 amendments preserved significant federal oversight but gave states more flexibility in meeting the act's requirements. For example, the amendments allowed the partial delegation of the CWA's permitting program, the National Pollutant Discharge Elimination System (NPDES), to the states. Third, the 1987 amendments significantly increased the civil and criminal penalties for CWA violations and granted the Environmental Protection Agency and the Army Corps of Engineers substantial new powers to impose administrative penalties. Finally, the 1987 amendments included provisions designed to give regulated industries more guidance as to the requirements of the CWA and allowed industry some relief from the act's strict guidelines when warranted.

The 1987 amendments, however, also included at least one area of water regulation wholly new to the CWA. Until the 1990s, the CWA primarily regulated effluent from pipes and drains, usually attached to or part of industrial plants, manufacturing facilities, or storm water systems. These targets of regulation are so-called "point" sources because the source of the pollution can be pinpointed. The 1987 amendments, however, included a provision, labeled Total Maximum Daily Loads (TMDLs), which arguably allows for the regulation of nonpoint pollution runoff from fields and farms and cities. Based on the ambiguous authority of this provision, throughout the 1990s the EPA gradually increased its regulation of nonpoint pollution. This has meant that since the 1987 amendments the federal government has moved from regulating specific industries to also regulating nonspecific urban, suburban, and agrarian activities.


Houck, Oliver A. The Clean Water Act TMDL Program: Law, Policy, and Implementation. Washington, D.C.: Environ-mental Law Institute, 2000.

Liebesman, Lawrence R., and Elliott P. Laws. "The Water Quality Act of 1987: A Major Step in Assuring the Quality of the Nation's Waters." Environmental Law Reporter 17 (1987): 10311–10312.

Shannon C.Petersen

See alsoEnvironmental Protection Agency ; Water Pollution ; Water Supply and Conservation .

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Clean Water Act

Clean Water Act

The twentieth-century conflagration of Ohio's Cuyahoga River well illustrated the quandary of a nation whose water was so polluted that it burned. The modern Clean Water Act (CWA) is the result of a sequence of federal water pollution control statutes starting with the nineteenth-century enactment of the Rivers and Harbors Act (limited to navigation-impeding debris), the 1948 Federal Water Pollution Control Act (the first federal attempt to regulate water pollution), the 1965 Water Quality Improvement Act, and the 1972 Federal Water Pollution Control Act. This, as amended in 1977 and again in 1987, was the template for the present statute. Although denoted the Federal Water Pollution Prevention and Control Act in the U.S. Code, the statute's common name is the Clean Water Act.

The CWA primarily governs the pollution of surface water, such as rivers, lakes, and streams. The CWA also regulates dredge and fill operations in wetlands, establishes criteria for ocean discharges, and regulates the oil pollution of water. In addition, it provides for state funding and includes research-oriented provisions.

The crux of the CWA lies in the requirements for a national permitting scheme for the pollution of surface waters. It provides for regulatory control of water pollution primarily by two mechanisms: enforcing "water-quality standards," typically established by states, and imposing technology based "effluent limitations" by means of permitting under the National Pollutant Discharge Elimination System (NPDES). Dischargers, such as publicly owned treatment works (POTWs), are required to utilize the best available pollution control technology in minimizing pollutants before they can obtain a permit to operate. The CWA contemplates the significant delegation of enforcement authority to qualifying states and state permitting under SPDES (i.e., "state" PDES) programs. The discharge of certain pollutants, such as toxic pollutants and medical wastes, is prohibited.

The EPA (except that the U.S. Army Corps of Engineers issues wetlands permits) or state agencies under qualifying state programs enforce the CWA. Citizen plaintiffs, subject to notice requirements specified in the statute, also may sue to enforce the act, although, similar to other federal environmental "citizen suit" provisions, not for the recovery of personal damages.

Enforcement of the CWA has received wide popular support. Despite the fact that it will not be possible to fairly evaluate its real value for quite some time, the CWA is generally considered an environmental success.

see also Biosolids; Laws and Regulations, United States; Ocean Dumping; Ocean Dumping Ban Act; Wastewater Treatment; Water Pollution.

Internet Resource

The Clean Water Network. Available from

Kevin Anthony Reilly

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