Land Use and Water Quality - PowerPoint

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Land Use and Water Quality - PowerPoint Powered By Docstoc
  Growth Readiness
  for Water Quality
Does your water quality matter?

  Kentucky Division of Water                                 Tennessee Valley Authority
    University of Louisville                            University of Kentucky Extension
U.S. Environmental Protection                                 Kentucky Environmental
           Agency                                               Education Council
Kentucky Transportation Center                          Kentucky Association of Counties
 Kentucky Waterways Alliance                                 Kentucky League of Cities

  KDOW and TVA adapted work by the Tennessee NEMO program, the University of Connecticut
                NEMO program, and the Center for Watershed Protection.
   This work was funded in part by a grant from the U.S. Environmental Protection Agency under
  §319(h) of the Clean Water Act through the Kentucky Division of Water to University of Louisville
                                      (Grant # C9994861-02).
    Presentation’s Purpose

 To provide information on water quality
issues confronting Kentucky as we grow.
  • Why water matters: Kentucky’s
    precious water resources
  • Threats to our waters
  • Land use and its impact on water
  • What YOU can do!
What is a watershed?

           • A watershed is the land
             where all the water drains to
             a specific location.
           • It includes surface runoff
             and groundwater flow.
Development &                    Water runoff is
increased impervious             dramatically increased
cover disrupts natural           (without proper practices).
water storage.
                         Graphic from Center for Watershed Protection
Water quality issues matter

          to your:
          Quality of life
          Economy and
          Compliance with Federal and
          State laws

            According to a survey of
            Kentuckians, water quality
            ranks first among all
            environmental concerns.
Pollution isn’t what it used to be

                 Point source
                 • Single, identifiable
                    – industrial
                    – sewage treatment

                 • Not the only
                   source that can
                   contaminate your
The pollution you can’t pinpoint

              • Comes from an entire
                 – Geographic, not political,
                 – Affected by geology
              • Most from land that is
                 – built on or paved
                 – farmed
                 – bare soil
 Clean Water Act requirements

Clean Water Act requires Kentucky to
     keep track of water quality

• If streams do not meet Water Quality
  – Waterway is placed on 303(d) list
  – TMDL requirements
  – May limit development
                   Streams not in compliance

                        Insert map of streams not
                        in compliance for your

       Stream Condition
        2003 305(b) Data
               Not Assessed
Prepared by
Kentucky Division of Water, October 2003
 Consequences of non-compliance

• Total maximum daily load established

• You can be responsible for fines of up to
  $25,000 per day for violations

• You risk the health and safety of
   –   your drinking water
   –   recreational and development activities
   –   community infrastructure
   –   your community’s future
Land use affects water quality

                These land uses
                account for more than
                80% of stream and river
                pollution in Kentucky.
Impact of impervious surfaces

               • Increased flooding
               • Less groundwater
               • Prevents natural
               • Collects pollutants
               • Moves pollutants to
                 waterways faster
                    Our present land use

                            Insert map of present
                            land use for your county!

                  Land Use (mid-1990’s)
                       Barren rock/clay to mines/quarries
                       Low-to-high intensity residential/commercial
                       Grasses to forests
                       Agricultural pasture to tillage
                       Woody wetlands to open water
Prepared by
Kentucky Division of Water, October 2003
               Our water quality &

                      Insert map of water
                      quality and
                      imperviousness for
                      your county!
          Watershed Health
(based on percentage imperviousness)

                   Good (< 10% Impervious)

                   Fair (10 - 25% Impervious)
                   Poor (> 25% Impervious)

Prepared by
Kentucky Division of Water, October 2003
                  Our future water quality?

             Insert map of our                  The type of land use
                                                is closely related to
             future water                       in-stream water
                                                quality and quantity.
             quality for your
             county!                            What would future
                                                land use changes
                                                mean to your
          Watershed Health                      community’s water
(based on percentage imperviousness)            quality and supply?
                   Good (< 10% Impervious)

                   Fair (10 - 25% Impervious)
                   Poor (> 25% Impervious)

Prepared by
Kentucky Division of Water, October 2003
What can you do?

             Adopt new design
             • Soak it in
             • Sift it out
             • Slow it down
             • Spread it on the ground
             • Settle it out
          What can you do?

Consider land use effects on water quality when:
 Planning for your community
   – Identify water resources
   – Identify water quality protection goals
   – Consider open space
 Evaluating site designs
 Adopting new best practices
   – Consider low impact
     development practices
Land use and water quality:
the choices are ours

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