GBL 480 Exam 2

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105 Terms

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Takings Clause (5th Amendment)

Constitutional rule that private property cannot be taken for public use without just compensation.


Notes: these are federal laws relating to Congress; the government IS allowed to take your property, but it must pay.


Umbrella: Private Land Restrictions → Takings Clause

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Is the government allowed to take your property?

Yes!

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Incorporation Clause (14th Amendment)

The 14th Amendment extends the Takings Clause to state and local governments.


Umbrella: Takings Clause → Applies to states/local via 14th Amendment

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Taking

When the government seizes private property for public use. Two types: physical taking and regulatory taking.

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Physical Taking

Invasion or occupation of property rights by governmental action (e.g., taking land to build a highway; eminent domain). Constitutional as long as the government pays just compensation (market value).


Umbrella: Private Land Restrictions → Takings Clause → Taking → Physical taking

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Regulatory Taking

Occurs when the government restricts the property owner's rights so much that the action becomes the equivalent of a physical seizure.


Analyzed as: categorical taking, use restriction (Penn Central test), or exaction (Nollan-Dolan test).


Umbrella: Private Land Restrictions → Takings Clause → Taking → Regulatory taking

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Eminent Domain

The government's power and right to physically take private property for public use, as long as it pays just compensation. Just compensation is ALWAYS required.


Umbrella: Private Land Restrictions → Takings Clause → Physical taking → Eminent domain

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Just Compensation

Payment the government owes the property owner when it takes a property; generally fair market value. Required for eminent domain and categorical takings. NOT owed for navigational servitude / public trust.


Umbrella: Private Land Restrictions → Takings Clause → Remedy → Just compensation (fair market value)

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Condemnation Lawsuit

The process/lawsuit used to physically take property. Hinges on what the fair market value is in court.


Umbrella: Private Land Restrictions → Takings Clause → Eminent domain → Condemnation lawsuit

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Takings Overview (decision tree)

1) Is it a physical seizure (eminent domain)? Yes → just compensation always required.


2) Is it a categorical taking? (a) Physical invasion/access mandate (Kaiser Aetna) or (b) loss of ALL economically viable use (Lucas) → compensation (fair market value).


3) Is it a use restriction that is not total? → Penn Central test (character of action, investment-backed expectations, economic impact).


4) Is it an exaction (condition on development approval)? → Nollan-Dolan test (essential nexus + rough proportionality).


5) Navigational servitude / public trust? → NO compensation.


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Categorical Taking

A taking that is automatic (no balancing test); government must pay just compensation (fair market value). Two kinds:


(1) physical invasions (access mandates) (Kaiser Aetna) and

(2) complete loss of all economically viable use (Lucas).


Umbrella: Private Land Restrictions → Takings Clause → Categorical taking

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Physical Invasions

Categorical taking where the government mandates public access to or occupation of private property. Compensation required even if the invasion is small.


Example: forcing public access to a private marina (Kaiser Aetna).


Umbrella: Private Land Restrictions → Takings Clause → Categorical taking → Physical invasion → Kaiser Aetna

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Complete loss of economically viable use

Categorical taking when a regulation deprives the owner of ALL economically viable use of the land (Lucas).


Exception: no compensation if state nuisance law would already have prohibited the use. If any economic use remains, it is NOT categorical (Palazzolo) → use Penn Central.


Umbrella: Private Land Restrictions → Takings Clause → Categorical taking → Total loss of value → Lucas → Exception: nuisance law

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Use Restriction

Government regulation that limits how an owner may use their land without taking all of its value. It is not automatically a taking. Courts decide using the Penn Central test.


Umbrella: Private Land Restrictions → Takings Clause → Regulatory taking → Use restriction → Penn Central test

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Penn Central Test

Ad hoc balancing test for whether a government action is a taking. Courts consider:


(1) character of the government action;

(2) extent of interference with reasonable investment-backed expectations;

(3) economic impact on the owner.


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Use restriction → Penn Central test → Character → Expectations → Economic impact

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Character of the government action

Penn Central factor 1: the 'why' behind the action. Is it a broad police-power regulation that benefits all citizens (less likely a taking) or does it single out/physically invade the owner (more likely a taking)?


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Penn Central test → Factor 1

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Reasonable investment-backed expectations

Penn Central factor 2: asks how far a regulation interferes with what the property owner reasonably expected to do with the property when they bought or invested in it. The greater the interference with those expectations, the more likely it is a taking.


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Penn Central test → Factor 2

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Economic impact on the owner

Penn Central factor 3: the actual loss in value of a property caused by the regulation. Greater diminution = more likely a taking (but diminution alone is not enough; Hadacheck lost ~200k in value and still got no compensation).


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Penn Central test → Factor 3

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Transferable development rights

Development rights lost on a restricted parcel (such as air rights over a landmark) that the owner can use on nearby plots instead. They are useful because they let the owner recover the lost value by building more elsewhere. That reduces the economic impact of the restriction, which makes a taking less likely under Penn Central factor 3.


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Penn Central test → Economic impact → Transferable development rights

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Moratorium

A temporary ban on development while a land-use plan is developed.

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Exaction

A special type of regulation: something the government requires an owner to give to the community in order to obtain approval to develop land (usually a conditional permit; the owner must do something for public benefit).


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Regulatory taking → Exaction → Nollan-Dolan test

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Nollan-Dolan Test

Two-part test for constitutionality of development exactions (from two cases):


(1) government shows an essential nexus between the exaction and the legitimate state interest; AND

(2) government shows rough proportionality between the exaction and the impact of the development.

Fail either = taking.


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Exaction → Nollan-Dolan test → Essential nexus → Rough proportionality

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Essential Nexus

Nollan-Dolan part 1: a reasonable connection between the condition (exaction) and the legitimate state interest the government is advancing.


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Exaction → Nollan-Dolan → Part 1

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Rough Proportionality

Nollan-Dolan part 2: the exaction is related in both nature and extent to the impact of the development (is the condition the right fit?).


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Exaction → Nollan-Dolan → Part 2

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Easement

A legal right to do a specific function on land (e.g., a right of passage) without owning it. A common form of exaction.


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Exaction → Forms → Easement

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Dedication

Giving away ownership of property for a specific purpose. A common form of exaction (stronger than an easement because title transfers).


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Exaction → Forms → Dedication

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The Public Trust

The state of Michigan holds the navigable waters within the state for use by the public.

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Navigational Servitude

Federal power over navigable waters. The government can regulate navigable waters without paying compensation, BUT it cannot convert a private pond into a public waterway without just compensation (Kaiser Aetna).


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Overview → Navigational servitude / public trust → NO compensation

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Public Trust Doctrine

The state holds a title to lands under navigable waters in trust for the people, for navigation, commerce and fishing, free from interference by private parties. The state cannot relinquish this trust by transfer of property.


Important in takings analysis: no compensation owed for regulating land subject to the trust. (Michigan: state holds navigable waters for public use.)


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Public trust doctrine → Navigable waters (log float test) → Ordinary high water mark → No compensation

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Quasi-Property Right

Description of the public's interest under the public trust doctrine: not full ownership, but a public right to use navigable waters that private owners cannot defeat.


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Public trust doctrine → Quasi-property right

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Ordinary high water mark

Line where water normally reaches at high tide; the area at/below it is subject to the public trust and public use, is not owned outright by the private owner, and may be regulated by government. Land above it is the private owner's.


(Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Public trust → Ordinary high water mark

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Navigable Waters / Log Float Test

Michigan's test for navigable waters: if a log can float on the water, it is navigable and subject to the public trust.


Umbrella: Preservation of Natural Areas → Private Land Restrictions → Takings Clause → Public trust → Navigable waters → Log float test (Michigan)

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Negative Externalities

Costs of producing a good that fall on people other than the producer, who have no say in the production decisions.


Pollution is the classic example: the polluter doesn't pay for it, so the market doesn't balance economic output against environmental quality. That market failure is why government regulation is needed.

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Collective (public) Goods

Goods that can't be provided to one person without letting others enjoy them too, and that are generally nonexcludable, meaning no one can be kept from using them. (Clean air)

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Approaches to Pollution Control (5)

1) Liability; 2) Direct regulation; 3) Charges; 4) Subsidies; 5) Pollution markets.

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Liability (pollution control)

A way to control pollution through lawsuits. Landowners harmed by a polluter can sue for damages (money) or an injunction. A nuisance lawsuit is the classic example. It is the first of the five approaches to pollution control.


Umbrella: Nuisance Law & Clean Air Act → Approaches

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Direct Regulation

Statutes that control pollution by prohibiting emissions beyond prescribed limits (e.g., Clean Air Act).


Umbrella: Nuisance Law & Clean Air Act → Approaches

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Charges

Penalties or fees for private activities that generate external costs (e.g., carbon tax).


Umbrella: Nuisance Law & Clean Air Act → Approaches

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Subsidies

Subsidizing private activities to reduce external costs (e.g., renewable energy credits).


Umbrella: Nuisance Law & Clean Air Act → Approaches

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Pollution Markets

Tradeable permits firms can buy and sell to each other (e.g., cap and trade).


Umbrella: Nuisance Law & Clean Air Act → Approaches

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Common Law

Law derived from judicial decisions, as opposed to statutes.

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Private Nuisance

Unreasonable interference with a person's use and enjoyment of their property (e.g., a dog barking all night). Remedies: damages and injunction.


Umbrella: Nuisance Law & Clean Air Act → Common law → Private nuisance

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Public Nuisance

Unreasonable interference with a right the general public shares in common (e.g., creating a public health hazard).


Umbrella: Nuisance Law & Clean Air Act → Common law → Public nuisance

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Preemption (federal common law nuisance)

When a comprehensive federal regulatory scheme displaces (replaces) common-law claims on the same subject, the common-law claim is barred.

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Clean Air Act (CAA - 1970)

Federal statute that regulates and protects ambient air, end of pipe regulation. Requires EPA to set health-based standards for ambient air quality (NAAQS).


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → Ambient air → NAAQS → SIPs → Sources (mobile/new/existing) → HAPs

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Ambient Air

The portion of the atmosphere, external to buildings, to which the general public has access. The starting point of the CAA: what is healthy for humans to breathe.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → Starting point → Ambient air

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NAAQS

National Ambient Air Quality Standards

Health-based national standards for criteria pollutants. EPA must set and review them every 5 years. EPA CANNOT consider feasibility/technology or cost-benefit analysis when setting NAAQS (Whitman v. American Trucking). Starting point of the CAA.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → NAAQS → Primary / Secondary → Attainment vs. nonattainment

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Criteria Pollutants

Common and widespread pollutants for which EPA sets NAAQS.


Six: lead (Pb), carbon monoxide (CO), nitrogen dioxide (NO2), sulfur dioxide (SO2), ozone (O3), particle pollution (PM).

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Primary Standard

NAAQS level requisite to protect public health.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → NAAQS → Primary standard

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Secondary Standard

NAAQS level requisite to protect against adverse effects on the environment.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → NAAQS → Secondary standard

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SIP

State Implementation Plan

Each state must develop an enforceable plan to meet and maintain NAAQS. It divides the state into regions assessed for compliance, contains emission limits and compliance schedules for emission sources and is enforceable by both state and federal law. States may adopt SIPs stricter than national standards.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → NAAQS → SIP → Regions: attainment / nonattainment

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Attainment Area

Area where air quality meets the NAAQS.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → SIP → Attainment area

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Nonattainment Area

Area where air quality falls short of the NAAQS; must implement specified pollution control measures.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → SIP → Nonattainment area

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Major Source

Large stationary source of air pollution regulated through the state permitting system (construction/operation permits).


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → State permitting → Major sources

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Mobile Sources

Cars, trucks, buses, farm and construction equipment. EPA has authority to set emission standards for mobile sources, including greenhouse gases like CO2 (Massachusetts v. EPA).


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → Regulated sources → Mobile

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New Stationary Source

Factory, power plant, etc. constructed OR in operation after 1970.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → Regulated sources → New stationary

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Modification

Any physical or operational change that increases air pollutants. A modified source is treated as a new stationary source.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → New stationary source → Modification

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Existing Stationary Source

Factory, power plant, etc. constructed and in operation before 1970 without being modified.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → Regulated sources → Existing stationary → States choose controls / RACT

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NSPS

New Source Performance Standards

Federal, uniform set of standards setting maximum emission levels for new and modified stationary sources, established by industry type (e.g., primary copper smelting, municipal solid waste landfills, lime manufacturing). Specifies HOW MUCH may be emitted, leaving each source free to choose the technology to meet the limit.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → New stationary sources → NSPS

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Opacity

The quality of being opaque (not transparent); used to measure visible emissions from a smokestack.

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NSR

New Source Review

Program requiring new sources to obtain a preconstruction/operating permit and install modern pollution control equipment to meet specified emission levels.


Attainment areas: PSD permit + BACT.


Nonattainment areas: LAER + offsets.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → New stationary sources → NSR → Attainment (PSD/BACT) OR Nonattainment (LAER/offsets)

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PSD

Prevention of Significant Deterioration

Congressional commitment to not deteriorate air quality in ATTAINMENT areas. Before construction, a source must get a PSD permit by (1) using BACT and (2) showing added emissions will not cause or contribute to pollution exceeding the allowable levels or any NAAQS.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → NSR → Attainment area

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BACT

Best Available Control Technology required for new sources in ATTAINMENT areas (PSD). Medium stringency. Allows flexibility to consider cost and technological innovation.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → NSR → Attainment area

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LAER

Lowest Achievable Emission Rate

The strictest control standard in the Clean Air Act. It applies to new or modified major sources in nonattainment areas. The source must meet the lowest emission rate found in any state plan (SIP) or achieved in practice, whichever is stricter. It must also get offsets.

Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → NSR → Nonattainment → LAER → Offsets

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Offsets

Requirement in nonattainment areas: a new source cannot be built unless its emissions are offset by reductions from existing facilities, results in a NET REDUCTION. Obtained by buying credits from outside companies (closing marginal plants, moving out, over-controlling), netting, or bubbling.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → Nonattainment → LAER → Offsets → Credits / Netting / Bubbling

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Netting

Offset method: closing other stacks at the SAME source.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → Offsets → Netting

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Bubbling

Offset method: closing other facilities under COMMON OWNERSHIP.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → Offsets → Bubbling → Chevron v. NRDC

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Emission Credit Banking

Offset method: where localities can bank reductions from sources that went out of business and transfer those credits to new firms.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → Offsets → Banking

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RACT

Reasonably Available Control Technology

The least strict control standard in the Clean Air Act. It applies to existing stationary sources in nonattainment areas. The source must use controls that are reasonably available, judged by three factors: (1) necessity, (2) social, environmental, and economic impact, and (3) alternative means.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → Existing sources → Nonattainment → RACT

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Technology-based controls ladder

LEAST stringent = RACT (existing sources, nonattainment).

MIDDLE = BACT (new sources, attainment, via NSR/PSD).

MOST stringent = LAER (new sources, nonattainment, via NSR + offsets).


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CAA source/area decision tree

1) Mobile source? → EPA emission standards (incl. GHGs).

2) New/modified stationary? → NSPS apply; then NSR: attainment area → PSD permit + BACT + increment/NAAQS; nonattainment area → LAER + offsets.

3) Existing stationary? → attainment: state's choice of controls; nonattainment: RACT.

4) Hazardous pollutant? → MACT.

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HAPs

Hazardous Air Pollutants known or suspected to cause cancer or other serious health effects or adverse environmental effects. Congress has listed 190.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → HAPs

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MACT

Maximum Achievable Control Technology

EPA emission standards for controlling HAPs from sources in an industry group. Based on emission levels already achieved by the best-controlled and low-emitting sources in that industry.


Umbrella: Nuisance Law & Clean Air Act → Clean Air Act (CAA) → HAPs → MACT

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CWA

Clean Water Act 1972

Federal statute regulating pollution in water (effluent) by controlling discharges of pollutants from point sources into waters of the United States (WOTUS).


Main tools: NPDES permits, technology-based effluent limits (BPT, BAT, BCT, NSPS), and TMDLs.


Main pollution sources: farms, runoff, plastics, and food manufacturing facilities with acidic outputs.

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Effluent

Pollution in water; the discharge that the Clean Water Act regulates.

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Organic Wastes

Pollutants that decompose by aerobic bacterial action. Commonly measured in biochemical oxygen demand (BOD).


Umbrella: Clean Water Act → Pollutants

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Biochemical Oxygen Demand (BOD)

The amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic conditions. Used to measure organic waste pollution.


Umbrella: Clean Water Act → Pollutants → Organic Wastes

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Thermal Pollution

The discharge of heated water (can cause algae growth).


Umbrella: Clean Water Act → Pollutants

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Sediments

Water pollutant. Added nutrients and sediments cause eutrophication.


Umbrella: Clean Water Act → Pollutants

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Eutrophication

The 'dying of lakes'; results from the addition of nutrients and sediments to a water body.


Umbrella: Clean Water Act → Pollutants → Sediments

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Toxic Chemicals

Water pollutants including heavy metals such as lead and arsenic.


Umbrella: Clean Water Act → Pollutants

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Point Source

Any single, identifiable, confined place that pollution comes out of, such as a pipe, ditch, channel, tunnel, well, container, concentrated animal feeding operation, or boat. The CWA regulates discharges of pollutants from point sources into WOTUS.


Umbrella: Clean Water Act → Jurisdiction

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Non-Point Source

Anything that is not a point source; can turn into a point source.


Classic example: agricultural runoff. Not covered by NPDES permits; receives a load allocation (LA) under a TMDL.


Umbrella: Clean Water Act → Jurisdiction

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Waters Of The United States (WOTUS)

Legal term of art: the navigable waters over which the CWA establishes federal regulation. The Act does not define WOTUS; it lets the EPA and Army Corps define it in regulations.


Umbrella: Clean Water Act → Jurisdiction

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Significant Nexus

Whether a wetland falls under the Clean Water Act. The wetland must have a significant connection to waters that are, or were, navigable, or that could reasonably be made navigable. Replaced by the continuous surface connection rule.


Umbrella: Clean Water Act → Jurisdiction → WOTUS → Wetlands Tests → Rapanos

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Effluent Limits

Limits on pollutant levels in a discharge, written into the NPDES permit.


Umbrella: Clean Water Act → NPDES Permit Program

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Technology-Based Effluent Limits

Treatment requirements built into NPDES permits; they are the MINIMUM level of control that must be imposed on a permit. For existing non-POTW dischargers the levels are BPT, BAT, and BCT. New sources use NSPS.


Umbrella: Clean Water Act → NPDES Permit Program → Effluent Limits

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POTW

Publicly owned treatment work

Publicly owned sewage/wastewater treatment facilities. BPT, BAT, and BCT apply to dischargers OTHER than POTWs (non-POTWs).


Umbrella: Clean Water Act → NPDES Permit Program → Technology-Based Effluent Limits

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(BPT)

Best Practicable Control Technology

The technology limit for existing non-POTW dischargers, due by 1977. It weighs total cost against several factors, so cost matters.


Umbrella: Clean Water Act → NPDES Permit Program → Technology-Based Effluent Limits → Existing Dischargers (Non-POTWs)

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Best Available Technology (BAT)

Standard for existing non-POTW dischargers, required by 1983 (modified in 1984 for conventional pollutants). Applies to toxic and non-conventional pollutants. No requirement to balance costs and benefits.


Umbrella: Clean Water Act → NPDES Permit Program → Technology-Based Effluent Limits → Existing Dischargers (Non-POTWs)

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Best Conventional Control Technology (BCT)

Standard for conventional pollutants (BOD5, total suspended solids, fecal coliform, and pH) for existing non-POTWs. Considers a 'reasonable relationship' (between cost and benefit).


Umbrella: Clean Water Act → NPDES Permit Program → Technology-Based Effluent Limits → Existing Dischargers (Non-POTWs)

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Conventional Pollutants

Pollutants controlled by BCT: biochemical oxygen demand (BOD5), total suspended solids (TSS), fecal coliform, and pH.


Umbrella: Clean Water Act → NPDES Permit Program → Technology-Based Effluent Limits → Existing Dischargers (Non-POTWs) → BCT

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CWA Technology Standards Comparison

BPT: all non-POTWs, total cost considered.


BAT: toxic and non-conventional pollutants, no cost-benefit balancing.


BCT: conventional pollutants, 'reasonable relationship.' NSPS: new sources, most stringent (best available demonstrated control technology).


Umbrella: Clean Water Act → NPDES Permit Program → Technology-Based Effluent Limits

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New Source (CWA)

Any source that may discharge pollutants that was constructed after the proposal of the applicable performance standards. Does NOT include modifications (unlike the Clean Air Act, where a modified source is treated as new).


Umbrella: Clean Water Act → NPDES Permit Program → Technology-Based Effluent Limits → New Sources

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New Source Performance Standards (NSPS)

The strictest discharge limits, applied to new sources. They are based on the best available demonstrated control technology. New sources can install the best equipment from the start. NSPS cover all pollutants: conventional, non-conventional, and priority. The EPA must consider cost, non-water environmental impacts, and energy use.


Umbrella: Clean Water Act → NPDES Permit Program → Technology-Based Effluent Limits → New Sources

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Best Available Demonstrated Control Technology

The technology basis for CWA NSPS; represents the most stringent controls attainable for new sources for all pollutants.


Umbrella: Clean Water Act → NPDES Permit Program → Technology-Based Effluent Limits → New Sources → NSPS

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Total Maximum Daily Load (TMDL)

The calculation of the maximum amount of a pollutant allowed to enter a waterbody so that it will meet and continue to meet water quality standards for that pollutant. Sets a pollutant reduction target and allocates load reductions among sources. States develop the TMDL and submit it to the EPA for approval.


Umbrella: Clean Water Act

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Wasteload Allocation (WLA)

The portion of a TMDL assigned to point sources (regulated under NPDES permits); identifies all point sources.


Umbrella: Clean Water Act → TMDL → Point Sources

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Load Allocation (LA)

The portion of a TMDL assigned to non-point sources; identifies all non-point sources.


Umbrella: Clean Water Act → TMDL → Non-Point Sources

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Watershed

The area where the water in a specific area drains into a water body.