Joe North Environmental Manager Geographic Information Systems Watershed Data Services Section Florida Department of Environmental Protection 2600 Blair Stone Road, Mail Station 3525 Tallahassee, Florida phone: (850) fax: (850) NHD Activities in Florida

FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION Regulatory Programs Water Resource Management Wastewater (Operator certificcation, Water reuse, Industrial, wastewater residuals Stormwater (NPDES, Nonpoint source) Drinking Water (operator certification, public water systems) Wetlands (Env. Resource Permitting, Mitigation) Environmental Assessment and Restoration Total Maximum Daily Loads Assessment and Restoration Probabilistic Water Quality Monitoring Springs Initiative Groundwater (Delineation, Monitoring, Source Water Assessment, Underground Injection) Everglades (CERP, Everglades Forever, Permitting) Beaches (Coastal Construction, Erosion control, Coastal permitting) Land and Recreation Planning and Management

FLORIDA’S WATER MANAGEMENT DISTRICT’S Water Supply Water Quality Management Flood Protection Natural System Management Produce a District Water Management plan that communicates, “Maximum reasonable beneficial use of water resources considering economic development, environmental protection, drainage, flood control and water storage”

Water Management Agencies (cont.) Division of Emergency Management Damage Assessment and Prediction Models Co-develop with LIDAR (FEMA map modernization) County and Municipal Governments Water Supply Water Protection – Stormwater management

Status of the Memorandum of Understanding Executed in February 2008 Complete photo revision of subbasins (4th level HUA, 8-digit HUCS, proposed management of 6 th level drainage basins) Revision of surface water features based on local feedback Involvement in NHD, WBD, and GNIS Updating NHD data directly to USGS

USGS Representatives Point of Contact George Heleine USGS, National Geospatial Technical Operations Center NHD POC 1400 Independence Rd., Rolla, MO Phone: (573) Geospatial Liason Louis J. Driber - Physical Scientist Geospatial Liaison to Florida, Puerto Rico, US-VI National Geospatial Program Office U.S. Geological Survey 2639 North Monroe Street Suite A-200 Tallahassee, Florida Office: (850) Cell: (850)

NHD Applications Making maps. Positional and descriptive data in the NHD provide the starting point for making many different kinds of maps. Geocoding observations. Much like street addresses provide a way to link data to a road network,the NHD's "reach code" provides the means to link data to water features. Modeling the flow of water along the Nation's waterways. Information about the direction offlow, when combined with other data, can help users model the transport of materials inhydrographic networks, and other applications. Maintaining data. Many organizations would like to share the costs of improving and updating their collections of geographic data. Unique identifiers and other methods encoded in the NHDhelp to solve technical problems of cooperative data maintenance. Source : NHD_ConceptsAndContents.pdf

Division of Environmental Assessment and Restoration’s uses of the NHD Making Maps – FDEP maintains the High and Medium Resolution NHD on an Oracle Based Spatial Data Base Engine (SDE) Library – Graphic Depiction and Labeling are scale dependant

Division of Environmental Assessment and Restoration’s uses of the NHD Total Maximum Daily Load Program A scientific determination of the maximum amount of a given pollutant that a surface water can absorb and still meet the water quality standards that protect human health and aquatic life. Water bodies that do not meet water quality standards are identified as "impaired" for the particular pollutants of concern--nutrients, bacteria, mercury, etc.--and TMDLs must be developed, adopted and implemented for those pollutants to reduce pollutants and clean up the water body. The threshold limits on pollutants in surface waters-- Florida's surface water quality standards on which TMDLs are based--are set forth primarily in rule , Florida Administrative Code, and the associated table of water quality criteria , Florida Administrative Code

Division of Environmental Assessment and Restoration’s uses of the NHD What are the basic steps in the TMDL program? How does it work? Assess the quality of surface waters--are they meeting water quality standards? Determine which waters are impaired--that is, which ones are not meeting water quality standards for a particular pollutant or pollutants. Establish and adopt, by rule, a TMDL for each impaired water for the pollutants of concern--the ones causing the water quality problems. Develop, with extensive local stakeholder input, a Basin Management Action Plan (BMAP) that.... Implement the strategies and actions in the BMAP. Measure the effectiveness of the BMAP, both continuously at the local level and through a formal re-evaluation every five years. Adapt--change the plan and change the actions if things aren't working. Reassess the quality of surface waters continuously

Assess the quality of surface waters--are they meeting water quality standards? STORET stations (USEPA STOrage and RETrieval) WQ Data Impaired Waters Rule Analysis Leads us to… Determine which waters are impaired--that is, which ones are not meeting water quality standards for a particular pollutant or pollutants. Generates a series of lists that are organized by assessment units we report to USEPA and that drive schedules to determine when we… Establish and adopt, by rule, a TMDL for each impaired water for the pollutants of concern--the ones causing the water quality problems. The results of which are published and in addition to being fed to the regulating community for future permits…allow us to… Develop, with extensive local stakeholder input, a Basin Management Action Plan (BMAP) that in turn allow us to Implement the strategies and actions in the BMAP What are the basic steps in the TMDL program? How does it work?

Division of Environmental Assessment and Restoration’s uses of the NHD Making Maps, Geocoding, Managing Data Inventory of Total Maximum Daily Load Program “Assessment Units” (NHD- WBID’s) Bureau of Watershed Restoration reports “Impairment” to USEPA by Reach Code and measure

Currently 6394 WBID polygons

WBID Polygons in the Ochlockonee Basin Area

Full NHD Flowlines for Same Area 831,153 Flowline Segments (Reaches) in Full Statewide NHD

Subset of Full NHD Used to Represent The WBIDs using 1:24K NHD Geometry BASED on useable Sampling Information 23,381 Flowline Segments In WBID NHD subset Less than 3% of total NHD

NHD WBIDs statewide

TMDL Assessment Units (WBID’s) near the Seminole – Orange County Boundary

Lake Jesup Lake Monroe Lake Apopka Lake Harney TMDL Assessment Units (NHD subset) near the Seminole – Orange County Boundary

Division of Environmental Assessment and Restoration’s uses of the NHD Inventory of Total Maximum Daily Load Program “Assessment Units” (NHD- WBID’s) Bureau of Watershed Restoration reports “Impairment” to USEPA by Reach Code and measure Improve the siting of STORET stations used in the Impaired Waters Rule Analysis

Lake Jesup Lake Monroe Lake Apopka Lake Harney TMDL Assessment Units (NHD subset) near the Seminole – Orange County Boundary

WBID polygons a great way to estimate landuse nutrient loading Polygons are not very good for identifying where stations belong Do these stations fall on Howell Creek?

NHD provides a great way to assigning stations to proper WBIDs Yes, these stations fall on Howell Creek

NHD provides a great way to assigning stations to proper WBIDs Is this station on Howell Creek

NHD provides a great way to assigning stations to proper WBIDs Yes, this station is on Howell Creek, but it has a 300 foot lat/long error

NHD provides a great way to assigning stations to proper WBIDs Where does this station belong?

NHD provides a great way to assigning stations to proper WBIDs this station falls on a piece of NHD lake

Florida’s uses of the NHD Geospatial Analysis (proximity, connectedness, inclusion, exclusion) Framework for Modeling Purposes (SFWMD’s AHEAD, SJRWMD ArcHydro Geodatabase) Integrated Water Resource Monitoring Network (Large and small stream and Lake resource monitoring)

TMDL needs 1.Given a point on a linear hydro network, the ability to calculate upstream and downstream distances 2.Given a point on a linear hydro network, the ability to calculate upstream contributing watershed areas and downstream receiving areas. 3.Ability to index an existing point (point source discharges, sampling stations, gaging stations etc. ) to a reach or other water feature 4.Given a point on a linear hydro network, the ability to select all features (and attributes) indexed to reaches belonging to an upstream or downstream network that that point “belongs-to” 5.Ability to calculate flow and velocity for selected reaches 6.Ability to depict and understand land surface elevations and stream crosssection information in relation to NHD reaches 7.Ability to calculate lake volumes (considering surface area, lake bottom “bathymetery”) 8.Delineate a watershed area down to the individual reach-catchment level based on a DEM or other data 9.Map the location of and facilitate the understanding of the impact that internally drained basins have on hydrology 10.Map the location of and facilitate the understanding of the impact of man-made stormwater systems to local, intermediate and wide-scale hydrology. Network Utility Analyst Trace Network Tasks ArcHydro Point Event ArcHydro NHD WBD NHD and ArcHydro NHD local resolution data

NHD Challenges Perennial versus Intermittent Streams Addressed in this meeting Complexity of the Dataset Stewardship – Educating personnel and symbology improvements (local copies) Lack of Editing Step by Step Improve the documentation (excepting capture conditions) Communication – Room for Improvement Weekly updates to Point of Contact Budgetary Constraints Financial Assistance – USGS startup and maintenance Sub-stewardship agreements