florida water quality standards
DESCRIPTION
FLORIDA WATER QUALITY STANDARDS. Current Designated Uses. Class IDrinking Water Class IIShellfish Class IIIRecreation, Fish &Wildlife Class IVAgricultural Water Supplies Class VIndustrial. Natural Waters. Artificial Waters. Designated Uses Classification Structure. - PowerPoint PPT PresentationTRANSCRIPT
FLORIDA WATER QUALITY STANDARDS
Current Designated Uses
Class I Drinking WaterClass II ShellfishClass III Recreation, Fish &WildlifeClass IV Agricultural Water SuppliesClass V Industrial
Natural Waters
Artificial Waters
Designated Uses Classification Structure
Current Designated Uses
Class III Class III
Prohibition of Toxics and NuisanceNo Change
NutrientsConductivity
Dissolved Oxygen
pHColor
Bacteriological
Flood Control
Planned Treatment
Works
Start Start
End
Clam Bayou
Lake Seminole
Start
End
Treatment Options
Artificial Waters
Proposed Aquatic Life Use Classifications
• AL1 Fish & wildlife (approximates natural background)• AL2 Fish & wildlife (minimal difference from
natural background)• AL3 Fish & wildlife (moderate difference from
natural background)• AL4 Fish & wildlife (substantial difference from
natural background – usually related to hydrology and habitat)
Proposed Human Use Classifications
• HU1 Drinking Water• HU2 Shellfish• HU3 Fish Consumption & Recreation (full body
contact)• HU4 Fish Consumption & Recreation (incidental
body contact)• HU5 Fish Consumption & Limited or No
Recreation (unsafe physical conditions)• HU6 Agricultural• HU7 Industrial
Modifying Designated Uses
How can a waterbody’s use be modified?The Federal Clean Water Act requires an analysis of water quality, biology, hydrology, and habitat, and possibly social and economic studies, to determine the highest attainable condition.
Use Attainability Analysis FactorsClean Water Act
40 CFR 131.10(g) allows States to remove a designated use which is not an existing use, as defined in § 131.3, or establish sub-categories of a use if the State can demonstrate that attaining the designated use is not feasible due to:
Natural Water Quality Natural Hydrology (i.e., routinely goes dry) Human Alteration that cannot be remedied (channelization) Dams, Diversions: Hydrologic Modifications Natural Physical Limitations Achievement of “Best Possible” Causes “Widespread
Economic and Social Impact
UAA ProcessRequestor submits
petition to DEP
DEP reviews and evaluates petition
If approved, DEP presents to ERC for
adoption
DEP holds a workshop for public review and
comment
If adopted DEP sends to EPA for approval
Point of public input
Point of public input
Point of public input
Frequently Asked Questions1. Can a use be downgraded or removed just because a
criterion is not being met? 2. Are Use Attainability Analyses used only to lower
protection under the water quality standards?3. Can an existing use be downgraded?4. Can cost of additional treatment to meet water quality
criteria be factored into the decision to modify a use?5. Does lowering the designated use of a water compromise
protection of downstream waters?6. Does lowering the use eliminate the need for local source
controls? 7. Does lowering the use allow new or expanded discharges?