Non Point Source Pollution - A Series of Fact Sheets

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  • 8/9/2019 Non Point Source Pollution - A Series of Fact Sheets

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    Nonpoint Source

    Pollution

    Why is there still water thats

    too dirty for swimming,fishing, or drinking? Why are

    native species of plants and

    animals disappearing from

    many river, lakes, and coastal

    waters? We do not do enough

    to control pollution from non-

    point sources. It is the main

    reason a large percentage of

    our rivers, lakes, and estuaries

    are not clean enough to meet

    basic uses such as fishing or

    swimming.

    NPS pollution occurs when

    rainfall, snowmelt, or irrigation

    runs over land or through the

    ground, picks up pollutants,

    and deposits them

    into rivers, lakes, and

    coastal waters or

    introduces them into

    ground water.

    Imagine the path

    taken by a drop of

    rain from the time it hits theground to when it reaches a

    river, ground water, or ocean.

    Any pollutant it picks up on it

    journey can become part of the

    NPS problem. NPS pollution

    also includes adverse changesto the vegetation, shape, and

    flow of streams and other

    aquatic systems.

    NPS pollutions is widespread

    because it can occur any time

    activities disturb the land or

    water. Agriculture, forestry,

    grazing, septic systems,

    recreational boating, urban

    runoff, construction, physical

    changes to stream channels,

    and habitat degradation are

    potential sources of NPS

    pollution. Careless or

    uniformed household

    management also contributes

    to NPS pollutions

    problems.

    The most common

    NPS pollutants are

    sediment and

    nutrients. These wash

    into water bodies

    from agricultural land, small

    and medium-sized animal

    feeding operations,

    construction sites, and other

    areas of disturbance. Other

    common NPS pollutantsinclude pesticides, pathogens

    (bacteria and viruses), salts, oil,

    grease, toxic chemicals, and

    heavy metals. Destroyed

    habitat, unsafe drinking water,

    fish kills, and many other

    severe environmental and

    human health problems result

    from NPS pollutants. The

    pollutants also ruin the beauty

    of healthy, clean water habitats.

    Each year, the United Statesspends millions of dollars to

    restore and protect the areas

    damaged by NPS pollutions.

    Nonpoint Source Pollution:Nonpoint Source Pollution:Nonpoint Source Pollution:The Nations Largest Water Quality ProblemThe Nations Largest Water Quality ProblemThe Nations Largest Water Quality Problem

    West Virginia Conservation Agency Watershed Resource CenterWVCA

    Watershed Resource

    Center

    The Nations LargestWater Quality Problem

    1

    Managing NonpointSource Pollution from

    Agriculture

    2

    Managing Urban Runoff 3

    Managing NonpointSource Pollution fromForestry

    4

    Managing Wetlands to

    Control Nonpoint SourcePollution

    5

    Managing NonpointPollution from Households

    6

    Acid Mine Drainage:Main Pollutant of SurfaceWater in Mid-Atlantic

    7

    I n s ide :

    Sources of Nonpoint

    Source Pollution:

    Excess fertilizers,

    herbicides, & Insecticides

    from agricultural lands &

    residential areas

    Oil, grease, & toxic

    chemical from urban

    runoff & energy production

    Sediment from improperly

    managed construction

    sites, crop & forest lands,

    & eroding streambanks

    Salt from irrigation

    practices & acid mine

    drainage from abandoned

    mines

    Bacteria & nutrients from

    livestock, pet wastes, &

    faulty septic systems

    Atmospheric deposition &

    hydromodicfication

    The West Virginia nonpoint source program does not discriminate on the basis of

    race, color, national origin, gender, or handicap.

    The most

    common NPS

    pollutants are

    sediment &

    nutrients.

    What Can You DoAbout Nonpoint SourcePollution?

    8

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    Agricultural activities that

    cause NPS pollution include,

    confined animal facilities,

    grazing, plowing, pesticidespraying, irrigation, fertilizing,

    planting, and harvesting. The

    major agricultural NPS

    pollutants that result from

    these activities are sediment,

    nutrients, pathogens,

    pesticides, and salts.

    Agricultural activities also can

    damage habitat and stream

    channels. Agricultural impacts

    on surface water and ground

    water can be minimized byproperly managing activities

    that can cause NPS pollution.

    Managing Sedimentation.

    Sedimentation occurs when

    wind or water runoff carries

    soil from an area, such as a

    farm field, and transports them

    to a water body, such as a

    stream or lake. Excessive

    sedimentation clouds the

    water, which reduces the

    amount of sunlight reachingaquatic plants; covers fish

    spawning areas and food

    supplies; and clogs the gills of

    fish. In addition, other

    pollutants like phosphorus,

    pathogens, and heavy metals

    are often attached to the soil

    particles and wind up in the

    water bodies with the

    sediment. Farmers and

    ranchers can reduce erosion

    and sedimentation by applying

    management measures to

    control the volume and flow

    rate of runoff water, keep soil

    in place, and reduce soil

    transport.

    Managing Nutrients.

    Nutrients such as phosphorus,

    nitrogen, and potassium in the

    form of fertilizers, manure,

    sludge, irrigation water,

    legumes, and crop residues are

    applied to enhance production.

    When they are applied in

    excess of plant needs, nutrientscan wash into aquatic

    ecosystems where they can

    cause excessive plant growth,

    which reduces swimming and

    boating opportunities, creates a

    foul taste and odor in

    methemoglobinemia, a poten-

    tially fatal disease in infants

    also known as blue baby

    syndrome. Farmers implement

    nutrient management plans

    which help maintain high yieldsand save money on the use of

    fertilizers while reducing NPS

    pollution.

    Managing Confined Animal

    Facilities. By confining

    animals to areas or lots,

    farmers and ranchers can

    efficiently feed and maintain

    livestock. But these confined

    areas become major sources of

    animal waste. Runoff from

    poorly managed facilities cancarry pathogens (bacteria and

    viruses), nutrients, and oxygen

    demanding substances that

    contaminate shell fishing areas

    and other major water quality

    problems. Ground water can

    also be contaminated by

    seepage. Discharges can be

    eliminated by storing and

    managing facility wastewater

    and runoff with an appropriate

    waste management system.

    Managing Irrigation.

    Irrigation water is applied to

    supplement natural

    precipitation or to protect

    crops against freezing or wilt-

    ing. Inefficient irrigation can

    cause water quality problems.

    In arid areas, for example,

    where rainwater does not carry

    residues deep into the soil,

    excessive irrigation can

    concentrate pesticides,

    nutrients, disease-carrying

    microorganisms, and salts-allof which impact water use

    efficiency. Actual crop needs

    can be measured with a variety

    of equipment.

    Managing Pesticides.

    Pesticides, herbicides, and

    fungicides are used to kill pests

    and control the growth of

    weeds and fungus. These

    chemicals can enter and

    contaminate water through

    direct application, runoff, windtransport, and atmospheric

    deposition. They can kill fish

    and wildlife, poison food

    sources, and destroy the

    habitat that animals use for

    protective cover. To reduce

    NPS contamination from

    pesticides, people can apply

    Integrated Pest Management

    (IPM) techniques based on the

    specific soils, climate, pest

    history, and crop for aparticular field. IPM help limit

    pesticide use and manage

    necessary applications to

    minimize pesticide movement

    from the field.

    Managing Livestock

    Grazing. Overgrazing exposes

    soils, increase erosion,

    encourages invasion by

    undesirable plants, destroys

    fish habitat, and reduces the

    filtration of sediment necessaryfor building streambanks, wet

    meadows, and floodplains. To

    reduce the impacts of grazing

    on water quality, farmers and

    ranchers can adjust grazing

    intensity, keep livestock out of

    sensitive areas, provide

    alternative sources of water

    and shade, and revegetate

    rangeland and pastureland.

    Managing Nonpoint Source Pollution from AgricultureManaging Nonpoint Source Pollution from AgricultureManaging Nonpoint Source Pollution from Agriculture

    Page 2 Nonpoint Source Pollut ion

    Properly designed and maintained

    Contour Farmingprotects water

    quality by reducing soil erosion. Contour

    Farming is performed on sloping cropland

    by following the natural contours when

    tilling the soil, planting, and cultivating. It

    also includes following established grades of

    terraces or diversions.

    Nutrient Managementinvolves

    managing the amount, placement, and

    timing of plant nutrients to obtain

    optimum yields and minimize the risk of

    surface and groundwater pollution.

    Manure Transferis a manure

    conveyance system using structures,

    conduits, equipment or appropriate storage

    that prevents over application of nutrients

    and bacteria from animal waste.

    A Water Facilityis a device (tank,

    trough, or other watertight container) to

    provide watering for livestock and/or

    wildlife at selected locations.

    Agricultural

    BMPS

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    Managing Urban RunoffManaging Urban RunoffManaging Urban Runoff

    Public Education.

    Schools can conduct

    education projects that

    teach students how to

    prevent pollution and keep

    water clean. In addition,

    educational outreach can

    target specific enterprises,

    such as service stations,

    that have opportunities to

    control runoff onsite.

    Many communities have

    implemented storm drain

    stenciling programs that

    discourage people from

    dumping trash directly into

    storm sewer systems.

    For more information on

    Conservation Education

    Material & Presentations

    for your classroom

    contact:

    Watershed Resource Center

    1900 Kanawha Blvd., EastCharleston, WV 25305

    304-558-0382

    In WV: 800-682-7866

    FAX: (304) 558-0373

    Web: www.wvca.us/wvwrc/

    E-mail:[email protected]

    Increased Runoff.The

    porous and varied terrain ofnatural landscapes like forests,

    wetlands, and grasslands trap

    rainwater and snowmelt and

    allow it to slowly filter into the

    ground. Runoff tends to reach

    receiving waters gradually. In

    contrast, nonporous urban

    landscapes like roads, bridges,

    parking lots, and buildings

    dont let runoff slowly

    percolate into the ground.

    Water remains above thesurface, accumulates, and runs

    off in large amounts.

    Cities install storm sewer

    systems that quickly channel

    this runoff from roads and

    other impervious surfaces.

    Runoff gathers speed once it

    enters the storm sewer system.

    When it leaves the system and

    empties into a stream, large

    volumes of quickly flowingrunoff erode streambanks,

    damage streamside vegetation,

    and widen stream channels. In

    turn, this will result in lower

    water depths during non-storm

    periods, higher than normal

    water levels during wet weather

    periods, increased sediment

    loads, and higher water

    temperatures. Native fish and

    other aquatic life cannot

    survive in urban streamsseverely impacted by urban

    runoff.

    Increased Pollutant Loads.

    Urbanization also increases the

    variety and amount of

    pollutants transported to re-

    ceiving waters. Sediment from

    development and new con-

    struction; oil and grease, and

    toxic chemicals from automo-

    biles; nutrients and pesticidesfrom turf management and

    gardening; viruses and bacteria

    from failing septic systems;

    road salts; and heavy metals are

    examples of pollutants gener-

    ated in urban areas. Sediments

    and solids constitute the largest

    volume of pollutant loads to

    receiving waters in urban areas.

    When runoff enters storm

    drains, it carries many of these

    pollutants with it. In oldercities, this polluted runoff is

    often released directly into the

    water without any treatment.

    Increased pollutant loads can

    harm fish and wildlife

    populations, kill native

    vegetation, foul drinking water

    supplies, and make recreational

    areas unsafe.

    Did you know that

    because of impervious

    surfaces such as

    pavement and rooftops, a

    typical city block

    generates 9 times more

    runoff than a woodland

    area of the same size?

    Page 3Nonpoint Source Pollut ion

    How Urban Areas Affect RunoffHow Urban Areas Affect Runoff

    Measures to Manage Urban RunoffMeasures to Manage Urban RunoffPlans for New Development.

    New developments should

    attempt to maintain the

    volume of runoff at

    predevelopment levels by using

    structural controls and

    pollution prevention strategies.

    Plans for the management of

    runoff, sediment, toxics, and

    nutrients can establish

    guidelines to help achieve both

    goals. Management plans aredesigned to protect sensitive

    ecological areas, minimize land

    disturbances, and retain natural

    drainage and vegetation.

    Plans for Existing

    Development. Controlling

    runoff from existing urban

    areas tend to be relatively ex-

    pensive compared to managing

    runoff from new develop-

    ments. However, existing

    urban areas can target their

    urban runoff control projects

    to make them more

    economical. Runoff

    management plans for existing

    areas can first identify priority

    pollutant reduction

    opportunities, then protect

    natural areas that help control

    runoff, and finally beginecological restoration and

    retrofit activities to clean up

    degraded water bodies.

    Citizens can help prioritize the

    clean-up strategies, volunteer

    to become involved with

    restoration efforts, and help

    protect ecologically valuable

    areas.

    Plans for Onsite Disposal

    Systems.The control of

    Nutrient and pathogen

    loadings to surface waters can

    begin with the proper design,

    installation, and operation of

    onsite disposal systems. These

    septic systems should be

    situated away from open

    waters and sensitive resources

    such as wetlands and flood-

    plains. They should also beinspected, pumped out, and

    repaired at regular intervals.

    Household maintenance of

    septic systems can play a large

    role in preventing excessive

    system discharges.

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    Sources of NPS Pollution

    associated with forestry

    activities include removal of

    streamside vegetation, road

    construction and use, timber

    harvesting, and mechanical

    preparation for the planting of

    trees. Road construction and

    road use are the primary

    sources of NPS pollution on

    forested lands. Harvesting trees

    in the area behind a stream can

    affect water quality by reducing

    the streambank shading thatregulates water temperature

    and by removing vegetation

    that stabilizes streambanks.

    These changes can harm

    aquatic life by limiting sources

    of food, shade, and shelter.

    Following properly designed

    preharvest plans can result in

    logging activities that are both

    profitable and highly protective

    of water quality. Such plans

    address the full range of

    forestry activities that can

    cause NPS pollution. They

    clearly identify the area to be

    harvested; locate special areas

    of protection, such as wetlands

    and streamside vegetation; plan

    for the proper timing of

    forestry activities; describe

    management measures for road

    layout, design, construction,

    and maintenance, as well as for

    harvesting methods and forest

    regeneration.

    Managing Nonpoint Source Pollution from ForestryManaging Nonpoint Source Pollution from ForestryManaging Nonpoint Source Pollution from Forestry

    Managing

    Replanting. Forests

    can be regenerated

    from either seed or

    seedlings. Seeding

    usually requires that the

    soil surface be prepared

    before planting.

    Seedlings can be

    directly planted with

    machines after minimal

    soil preparation. In

    either case, the use of

    heavy machinery can

    result in significant soildisturbance if not

    performed properly.

    Plans often restrict forestry

    activities in vegetated areas

    near streams (also known as

    buffer strips or riparian zones),

    thereby establishing special

    SMAs. The vegetation in an

    SMA is highly beneficial to

    water quality and aquatichabitat. Vegetation in the SMA

    stabilizes streambanks, reduces

    runoff and nutrient levels in

    runoff, and traps sediment

    generated from upslope

    activities before it reaches

    surface waters. SMA vegetation

    moderates water temperature

    by shading surface water and

    provides habitat for aquatic

    life. For example, large trees

    provide shade while alive andprovide aquatic habitat after

    they die and fall into the

    stream as large woody debris.

    Managing Road

    Construction, Layout, Use,

    and Maintenance. Good road

    location and design can greatly

    reduce the transport of

    sediment to water bodies.

    Whenever possible, road

    systems should be designed to

    minimize road length, road

    width, and the number of

    places where water bodies are

    crossed. Roads should also

    follow the natural contours of

    the land and be located awayfrom steep gradients, landslide-

    prone areas, and areas with

    poor drainage. Proper road

    maintenance and closure of

    unneeded roads can help

    reduce NPS impacts from

    erosion over the long term.

    Managing Timber

    Harvesting. Most detrimental

    effects of harvesting are related

    to the access and movement of

    vehicles and machinery, andthe dragging and loading of

    trees or logs. These effects

    include soil disturbance, soil

    compaction, and direct distur-

    bance of stream channels. Poor

    harvesting and transport tech-

    niques can increase sediment

    production and disturb soil

    surface.

    Surveying the Site. Preactivity

    surveys can help identify areas

    that might need special

    protection or management

    during forestry operations.

    Sensitive landscapes usually

    have steep slopes, a greater

    potential for landslides,sensitive rock formations, high

    precipitation levels, snowpack,

    or special ecological functions

    such as those provided by

    streamside vegetation. Forestry

    activities occurring in these

    areas have a high potential of

    affecting water quality.

    Timing. Because most

    forestry activities disturb soil

    and contribute to erosion and

    runoff, timing operations cansignificantly reduce their

    impact on water quality and

    aquatic life. Rainy seasons and

    fish migration and spawning

    seasons, for example, should

    be avoided when conducting

    forestry activities.

    Establishing Streamside

    Management Areas (SMAs).

    Did you know that

    streamside vegetation

    protects streams, lakes,

    and other water fromNPS pollution caused by

    forestry activities?

    Page 4 Nonpoint Source Pollut ion

    Preharvest Planning: Opportunities to Prevent NPS PollutionPreharvest Planning: Opportunities to Prevent NPS Pollution

    Factors Considered in the Preharvest PlanFactors Considered in the Preharvest Plan

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    Managing Wetlands to Control Nonpoint Source PollutionManaging Wetlands to Control Nonpoint Source PollutionManaging Wetlands to Control Nonpoint Source Pollution

    When properly managed,

    wetlandscan help

    prevent NPS pollution

    from degrading water

    quality. Wetlands include,

    swamps, marshes, fens,

    and bogs.

    Properly managed wetlands

    can intercept runoff and

    transform and store NPS

    pollutants like sediment,

    nutrients, and certain heavy

    metals without being degraded.

    In addition, wetlands

    vegetation can keep stream

    channels intact by slowing

    runoff and by evenly

    distributing the energy in

    runoff. Wetlands vegetation

    also regulates stream

    temperature by providing

    streamside shading. Some cities

    have started to experimentwith wetlands as an effective

    tool to control runoff and

    protect urban streams.

    Improper development or

    excessive pollutant loads can

    damage wetlands. The

    degraded wetlands can no

    longer provide water quality

    benefits and become

    significant sources of NPS

    pollution. Excessive amounts

    of decaying wetlandsvegetation, for example, can

    increase biochemical oxygen

    demand, making habitat

    unsuitable for fish and other

    aquatic life. Degraded wetlands

    also release stored nutrients

    and other chemicals into

    surface water and ground

    water.

    Wetlands Preservation.The

    first strategy protects the full

    range of wetlands functions bydiscouraging development

    activity. At the same time, this

    strategy encourages proper

    management of upstream

    watershed activities, such as

    agriculture, forestry, and

    urban development. Several

    programs administered by

    EPA, the US Department of

    Agriculture, the National

    Oceanic and Atmospheric

    Administration, the US Army

    Corps of Engineers, and the

    US Department of the Interior,

    as well as other government

    agencies, protect wetlands by

    either controlling development

    activities that would affect

    wetlands or providing financial

    assistance to people who wish

    to protect them. In addition,

    nongovernmental groups that

    purchase wetlands for

    conservation purposes, such as

    the Nature Conservancy, TheTrust for Public Land, and

    local land trusts, are playing an

    increasingly important role in

    protecting water quality.

    Wetlands / Riparian

    Restoration.The second

    strategy promotes the

    restoration of degraded wet-

    lands and riparian zones with

    NPS pollution control

    potential. Riparian zones are

    the vegetated ecosystems alonga water body through which

    energy, materials, and water

    pass. Riparian areas

    characteristically have high

    water-tables and are subject to

    periodic flooding and influence

    from the adjacent water body.

    They encompass wetlands and

    uplands, or some combination

    of these two landforms.

    Restoration activities should

    recreate the full range of preex-isting wetlands functions. That

    means replanting degraded

    wetlands with native plant

    species, and depending on the

    location and the degree of

    degradation, using structural

    devices to control water flows.

    Restoration projects factor in

    ecological principles, such as

    habitat diversity and the

    connections between different

    aquatic and riparian habitat

    types, which distinguish these

    kinds of projects from wet-

    lands that are constructed for

    runoff pretreatment.

    Engineered Systems.The

    third strategy promotes the use

    of engineered vegetated treat-

    ment systems (VTS). VTS are

    especially effective at removing

    suspended solids and sediment

    from NPS pollution before the

    runoff reaches natural wet-

    lands.

    One type of VTS, the

    vegetated filter strip (VFS), is a

    swath of land planted with

    grasses and trees that intercept

    uniform sheet flows of runoff,

    before the runoff reaches wet-

    lands. VFSs are most effective

    at sediment removal.

    Constructed wetlands, another

    types of VTS, are typically

    engineered complexes of water,

    plants, and animal life that

    stimulate naturally occurring

    wetlands. Like VFS,

    constructed wetlands offer an

    alternative to other systems

    that are more structural in

    design.

    Saving a Precious Resource.

    Healthy wetlands benefit fish,

    wildlife, and humans because

    they protect many natural re-

    sources, only one of which is

    clean water. To help prevent

    NPS pollution from further

    degrading the Nations waters

    and to protect many other

    natural resources, wetlands

    protection must remain a focal

    point for national education

    campaigns, watershed

    protection plans, and local

    conservation efforts.

    Did you know that

    wetlands receive

    significant amount of

    NPS pollution because

    they are typically the

    lowest point on the

    landscape?

    Page 5Nonpoint Source Pollut ion

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    Nonpoint Source Pollution

    (NPS) is the Nations leading

    source of water quality

    degradation. Although,individual homes might

    contribute only minor amounts

    of NPS pollution, the

    combined effect of an entire

    neighborhood can be serious.

    To prevent and control NPS

    pollution, households can learn

    about the causes of such

    pollution and take the

    appropriate (and often money-

    saving) steps to limit runoff

    and make sure runoff staysclean.

    Limit Paved Surfaces. Urban

    and suburban landscapes are

    covered by paved surfaces like

    sidewalks, parking lots, roads,

    and driveways. They prevent

    water from percolation down

    into the ground, cause runoff

    to accumulate, and funnel into

    storm drains at high speeds.

    When quickly flowing runoff

    empties into receiving waters,

    it can severely erode stream-

    banks. Paved surfaces also

    transfer heat to runoff, thereby

    increasing the temperature of

    receiving waters. Native

    species of fish and other

    aquatic life cannot survive in

    there warmer waters.

    To limit NPS pollution from

    paved surfaces, households can

    substitute alternatives to areas

    traditionally covered by non-

    porous surfaces. Grasses and

    natural ground cover, for

    example, can be attractive and

    practical substitutes for asphalt

    driveways, walkways, and

    patios. Some homes effectively

    incorporate a system of natural

    grasses, trees, and mulch to

    limit continuous impervious

    surface area. Wooden decks,

    gravel or brick paths, and rock

    gardens keep the natural

    ground cover intact and allowrainwater to slowly seep into

    the ground.

    Landscape With Nature.

    Altering the natural contours

    of yards during landscaping

    and planting with non-native

    plants that need fertilizer and

    extra water can increase the

    potential for higher runoff

    volumes, increase erosion, and

    introduce chemicals into the

    path of runoff. In contrast,xeriscape landscaping provides

    households with a framework

    that can dramatically reduce

    the potential for NPS

    pollution.

    Xeriscape incorporates many

    environmental factors into

    landscape design-soil type, use

    of native plants, practical turf

    areas, proper irrigation,

    mulches, and appropriate

    maintenance schedules. By

    using native plants that are

    well-suited to a regions climate

    and pests, xeriscape drastically

    reduces the need for irrigation

    and chemical applications. Less

    irrigation results in less runoff,

    while less chemical application

    keeps runoff clean.

    Proper Septic System

    Management. Malfunctioning

    or overflowing septic systems

    release bacteria and nutrients

    into the water cycle,

    contaminating nearby lakes,

    streams, and estuaries, and

    ground water. Septic systems

    must be built in the right place.

    Trampling ground above the

    system compacts soil and can

    cause the systems pipes to

    collapse. Also, septic systems

    should be located away from

    trees because tree roots can

    crack pipes or obstruct the

    flow of wastewater throughdrain lines. Proper septic

    system management is also

    important, and a system should

    be inspected and emptied every

    3 to 5 years.

    Maintaining water fixtures and

    by purchasing water-efficient

    showerheads, faucets, and

    toilets, households can limit

    wastewater levels, reducing the

    likelihood of septic system

    overflow. Most waterconservation technologies

    provide long-term economic

    and environmental benefits.

    Proper Chemical Use,

    Storage, and Disposal.

    Household cleaners, grease, oil,

    plastics, and some food or

    paper products should not be

    flushed down drains or washed

    down the street. Over time

    chemicals can corrode septic

    system pipes and might not be

    completely removed during the

    filtration process. Chemicals

    poured down the drain can

    also interfere with the chemical

    and biological breakdown of

    the wastes in the septic tank.

    On household lawns and

    gardens, homeowners can try

    natural alternatives to chemical

    fertilizers and pesticides and

    apply no more than the

    recommended amounts.

    Natural predators like insects

    and bats, composting, and use

    of native plants can reduce or

    entirely negate the need for

    chemicals. Xeriscape can limit

    chemical applications to lawns

    and gardens.

    Managing Nonpoint Source Pollution from HouseholdsManaging Nonpoint Source Pollution from HouseholdsManaging Nonpoint Source Pollution from Households

    Did you know that homes with

    xeriscapelandscapes use natural

    contours and native plants to

    conserve water, limit runoff, and

    reduce chemical use?

    If chemicals are

    needed around the

    home, they should be

    stored properly to

    prevent leaks and

    access by children. Most

    cities have designated

    sites for the proper

    disposal of used

    chemicals.

    Page 6 Nonpoint Source Pollut ion

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    Acid Mine Drainage:Acid Mine Drainage:Acid Mine Drainage:Main Pollutant of Surface Water in the MidMain Pollutant of Surface Water in the MidMain Pollutant of Surface Water in the Mid---Atlantic RegionAtlantic RegionAtlantic Region

    Acid Mine Drainage

    (AMD)

    Acid Mine Drainage (AMD) is

    currently the main pollutant ofsurface water in the mid-

    Atlantic region. AMD is caused

    when water flows over or

    through sulfur-bearing

    materials forming solutions of

    net acidity. AMD comes

    mainly from abandoned coal

    mines and currently active

    mining. AMD degrades

    streams with the loss of aquatic

    life, and restricts stream use for

    recreation, public drinkingwater, and industrial water

    supplies.

    What is Mine Drainage?

    Mine drainage is metal-

    rich water formed from

    chemical reaction between

    water and rocks

    containing sulfur bearing

    minerals.

    The runoff formed is

    usually acidic andfrequently comes from

    areas where ore or coal

    mining activities have

    exposed rocks containing

    pyrite, a sulfur bearing

    mineral.

    Metal-rich drainage can

    also occur in mineralized

    areas that have not been

    mined.

    How Does Mine Drainage

    Occur?

    Mine drainage is formed

    when pyrite, an iron

    sulfide, is exposed and

    reacts with air and water

    to form sulfuric acid and

    dissolved iron.

    Some or all of this iron

    can precipitate to form the

    red, orange, or yellow

    sediments in the bottomof streams containing

    mine drainage.

    The acid runoff further

    dissolves heavy metals

    such as copper, lead,

    mercury into the ground

    or surface water. The rate

    and degree by which acid-

    mine drainage proceeds

    can be increased by the

    action of certain bacteria.

    Problems Associated with

    Mine Drainage.

    Contaminated drinking

    water

    Disrupted growth and

    reproduction of aquatic

    plants and animals

    Corroding effects of acid

    on parts of infrastructure

    such as bridges

    Acid Mine Drainage.

    Mines built as early as the

    1800s were developed in a

    manner which utilized

    gravity drainage to avoid

    excessive water accumula-

    tion in the mines.

    As a result, water polluted

    by acid, iron, sulfur, and

    aluminum drained away

    from the mines and into

    streams.

    Results of Acid Mine

    Drainage.

    Acid Mine drainage is one

    of Region 3 most serious

    water pollution problems.

    It is not only an ecological

    concern to the states, but

    and economic concern as

    well.

    Economic Concerns

    Resulting from Acid Mine

    Drainage.

    A region impacted by acid

    mine drainage often has a

    decline in valued recreational

    fish species, such as trout, as

    well as a general decline in

    outdoor recreation andtourism, along with

    contamination of groundwater

    drinking supplies.

    Acidification.

    Acidification is the

    contamination of air and water

    by chemical compounds that

    either develop acids or deposit

    metals. The mid-Atlantic area

    experiences the

    lowest annual

    average rainfallpH, is second in

    the world in acid

    deposition (acid

    rain), and has

    had the heaviest

    anthracite and

    bituminous coal

    mining (highest

    in sulfur dioxide

    or SO2) in the

    eastern US. These conditions

    have contributed toacidification in Region 3.

    The sources of acidification are

    AMD, primarily from

    abandoned mine lands, and

    Acid Deposition (AD),

    primarily from fossil fuel

    burning combustion sources.

    The impacts of acidification

    are enormous.

    Page 7Nonpoint Source Pollut ion

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    NPSNPSNPSPollution isPollution isPollution is

    EVERY-EVERY-EVERY-

    ONESONESONES

    problem! Weproblem! Weproblem! We

    all cause itall cause itall cause it

    and we canand we canand we can

    ALL helpALL helpALL help

    PREVENTPREVENTPREVENT

    it!it!it!

    WVCA

    1900 Kanawha Blvd., East

    Charleston, WV 25305-0193

    Visit us on the web:

    www.wvc.us/wvwrc/

    develop construction

    erosion / sedimentcontrol ordinances in your

    community.

    Have your septic system

    inspected and pumped, at

    a minimum, every 3-5

    years so that it operates

    properly.

    Purchase household

    detergents and cleaners

    that are low in

    phosphorus to reduce theamount of nutrients

    discharged into our lakes

    and streams.

    Mining.

    Become involved in local

    mining issues by voicing

    your concerns about acid

    mine drainage and

    reclamation projects in

    your area.

    Forestry.

    Use proper logging and

    erosion control practices

    on your forest lands by

    ensuring proper

    construction, mainte-

    nance, and closure of

    logging roads and skid

    trails.

    Report questionable

    logging practices to state

    and federal forestry and

    state water agencies.

    Agriculture.

    Manage animal waste to

    minimize contamination

    of surface water and

    ground water.

    We can all work together to

    reduce and prevent nonpointsource pollution. Each

    individual can play an

    important role by practicing

    conservation and by changing

    certain everyday habits.

    Tips for controlling NPS

    pollution:

    Keep litter, pet wastes,

    leaves, and debris out of

    street gutters and storm

    drains--these outlets draindirectly to lakes, streams,

    rivers, and wetlands.

    Apply lawn and garden

    chemicals sparingly and

    accordingly to directions.

    Dispose of used oil, anti-

    freeze, paints, and other

    household chemicals

    properly, not in storm

    sewers or drains. If your

    community does not

    already have a program for

    collecting household

    hazardous wastes, ask

    your local government to

    establish one.

    Clean up spilled brake

    fluid, oil, grease, and anti-

    freeze. Do not hose them

    into the street where they

    can eventually reach local

    streams and lakes.

    Control soil erosion onyour property by planting

    ground cover and

    stabilizing erosion-prone

    areas.

    Encourage local

    government officials to

    Protect drinking water by

    using less pesticides and

    fertilizers.

    Reduce soil erosion by

    using conservation

    practices and other

    applicable best

    management practices.

    Use planned grazing

    systems on pasture and

    rangeland.

    Dispose of pesticides,

    containers, and tank

    rinsate in an approved

    manner.

    For more information on what

    you can do to prevent NPS:

    Source on information:

    http://www.epa.gov/owow/

    nps/whatudo.html

    What Can You Do About Nonpoint Source Pollution?What Can You Do About Nonpoint Source Pollution?What Can You Do About Nonpoint Source Pollution?

    Phone: 304-558-0382

    Fax: 304-558-0373

    E-mail: [email protected]

    Remember, Everybody

    Lives Downstream.

    PUT TOXIC WASTE IN ITS

    PLACE!

    West Virginia Conservation AgencyWatershed Resource Center

    Source: All information contained in the booklet is taken from EPAs series of fact sheets designed to help the public

    increase their understanding and management of nonpoint source pollution in their community.

    http://www.epa.gov/owow/nps/facts/

    Nonpoint Source Pollut ion Page 8