Decision Support Tools

Many decision support tools are currently available that may be utilized in evaluating and assessing nutrient loads and potential nutrient load management and reduction activities. These tools are available through state, federal, and other entities and may assist agencies and other stakeholders with nutrient management efforts. The following is a listing of identified decision support tools.

Tool Host Agency Description Website
(2001) Action Plan for Reducing, Mitigating, and Controlling Hypoxia in the Northern Gulf of Mexico USEPA The 2001 Action Plan describes a national strategy to reduce the frequency, duration, size, and degree of oxygen depletion of the hypoxic zone of the northern Gulf of Mexico. The plan was submitted as a Report to Congress on January 18, 2001. link
(2008) Hypoxia in the Northern Gulf of Mexico: An update by the EPA Science Advisory Board USEPA In 2006 as part of the reassessment, EPA’s Office of Water, on behalf of the Task Force, requested that the Environmental Protection Agency (EPA) Science Advisory Board (SAB) convene an independent panel to evaluate the state of the science regarding hypoxia in the Northern Gulf of Mexico and potential nutrient mitigation and control options in the Mississippi-Atchafalaya River basin (MARB). The Task Force was particularly interested in scientific advances since the Integrated Assessment and issued charge questions in three areas: characterization of hypoxia; nutrient fate, transport and sources; and the scientific basis for goals and management options. link
ADB – Assessment Database USEPA/LDEQ ADB is a relational database for tracking water quality assessment data, including use attainment, and causes and sources of impairment. EPA uses state-level ADB information to feed the national ATTAINS data management system. link
Agricultural Best Management Practices (BMPs) LSU AgCenter Best management practices (BMPs) are used by agricultural producers to control the generation and delivery of pollutants from agricultural activities to water resources of the state, thereby reducing the amount of agricultural pollutants entering surface and ground waters. This publication includes information on five main areas: nutrient management, pesticide management, soil and water management, pasture management and general farm BMPs. link
American Water Resources Association Policy Committee. 2012. Case Studies in Integrated Water Resources Management: From Local Stewardship to National Vision. Middleburg, Virginia. AWRA Discusses using approach of Integrated Water Resources Management (IWRM) to involve all sources of water in planning; addressing water quantity, water quality and ecosystem needs; incorporating principles of equity, efficiency, and public participation in water planning; and sharing information across disciplines and agencies. however, implementation of this approach has been slow. The AWRA attempting efforts to advance and develop a better understanding of IWRM. Report includes case studies. link
Annualized Agricultural Nonpoint Source (AnnAGNPS) model USDA/ARS Watershed model for overland flow, runoff; addresses nitrogen and phosphorus in addition to other parameters. link
AQUATOX USEPA Dynamic model that can simulate nutrients and their impact on the ecosystem, including fish, invertebrates, and aquatic plants. link
BEACH Monitoring Program LDHH The Louisiana Department of Health & Hospitals Beach Monitoring Program tests water at 26 beach sites along the Louisiana coast to determine whether the water quality meets Environmental Protection Agency (EPA) criteria. This program is part of the federal Beaches Environmental Assessment and Coastal Health (BEACH) Act of 2000. The BEACH Act is an amendment to the Clean Water Act requiring all coastal states to develop programs for effective water quality monitoring and public notification at coastal recreational beaches. link
Best Management Practice (BMP) Manuals LSU AgCenter Links to best management practices (BMPs) manuals for agronomic crops, aquaculture, beef, dairy, poultry, rice, sugarcane, sweet potatoes and swine link
BioData - Aquatic Bioassessment Data for the Nation (USGS) USGS USGS website provides access to biological data (fish, invertebrates, algae) throughout the United States. Site also contains physical information (drainage area, stream reach length, light intensity, etc.) for the sampling site. Found data for 31 sites in Louisiana covering approximately 25 streams. link
CAFO and/or agricultural production data LDAF A Louisiana Department Of Agriculture and Forestry (LDAF) program which compiles Animal Feeding Operations Data for poultry, cattle and swine farms operations and facilities. The data collected on this facilities can be used to assist in the establishment and sustainment of healthy environmental conditions statewide. Focus is on improved nutrient management through coordinated efforts by regulated facilities and agencies. Statewide census of animal populations are identified at the website. link
Climate Change and Water USEPA The "2012 Response to Climate Change" strategy presents five long-term visions designed to shape EPA's future work on climate change and water issues based on the growing understanding of climate change. Each of these vision areas identifies a range of long-term goals and the strategic actions that need to be taken in the coming years to achieve those goals. link
Conservation Effects Assessment Projects (CEAP) Cropland Assessment Reports USDA/NRCS The purpose of the National Assessment for Cropland is to estimate the environmental benefits and effects of conservation practices applied to cultivated cropland and cropland enrolled in long-term conserving cover (e.g. the Conservation Reserve Program). The Cropland Component of the National Assessment has three specific goals: 1.Estimate the effects of conservation practices currently present on the landscape. 2.Estimate the need for conservation practices and the potential benefits of additional conservation treatment. 3.Simulate alternative options for implementing conservation programs on cropland in the future. The ultimate goal of the Cropland Component is to report conservation effects in terms that represent recognizable outcomes, such as cleaner water and soil quality enhancements that will result in more sustainable and profitable production over time. link
CPRA Master Plan Predictive Modeling: Agriculture/Aquaculture (Potential For) Technical Report CPRA The Potential for Agriculture/Aquaculture Model was based on the concept of habitat suitability index (HSI) models. The model was designed to examine the potential for agriculture using the requirements for the two leading crops in south Louisiana, sugarcane and rice. This model is also being used as a predictor for aquaculture potential. The Potential for Agriculture/Aquaculture Suitability Index (SI) is intended to consider the possible effect of a project on potential for agriculture/aquaculture. It is based on 500 x 500m model grid cells and is calculated on an annual time step. The model combines salinity and flooding risk to produce a suitability index for potential for agriculture/aquaculture ranging from 0.0 to 1.0. link
CPRA Master Plan Predictive Modeling: Arcadis Risk Assessment (Storm Damage) Model - Dr. Jordan Fischbach, RAND Corp CPRA Hurricane flood risk model to assess how proposed restoration and protection projects reduce damage in the next 50 years. In response, our team developed the Coastal Louisiana Risk Assessment (CLARA) model to systematically evaluate proposed flood risk reduction projects on the basis of how well they reduce damage in Louisiana’s coastal region. link
CPRA Master Plan Predictive Modeling: Barrier Shoreline Morphology Model - Dr. Ioannis Georgiou, University of New Orleans CPRA This model was developed specifically for the Louisiana 2012 Coastal Master Plan for barrier shoreline and inlet evolution at a decadal scale. link
CPRA Master Plan Predictive Modeling: Eco-Hydrology Model - Dr. Ehab Meselhe, University of Louisiana at Lafayette CPRA The Eco‐Hydrology models are capable of simulating long‐term hydrodynamic and water quality processes, where the maximum simulation period was 25 years. They can also cover large spatial domains, e.g. the entire Louisiana coast. The models can simulate complex systems such as the nutrient cycles of nitrogen and phosphorus, which involve multiple chemical processes occurring simultaneously. Outputs include TKN, Nitrate+Nitrite, Ammonium, DON, N-removal, TP, and soluble P. link
CPRA Master Plan Predictive Modeling: Fish & Wildlife Habitat Suitability Indices - Dr. Andy Nyman, Louisiana State University and LSU AgCenter CPRA Predictive models used for the 2012 Coastal Master Plan to predict potential habitats suitable for these species into the future. Multiple reports/models, including crawfish (wild caught), shrimp (brown and white), and oysters. link
CPRA Master Plan Predictive Modeling: Storm Surge and Wave Model - Hugh Roberts, PE CPRA The Surge/Wave Attenuation Potential Suitability Index (SI) is intended to consider the potential effect of a project in attenuating storm surge/waves that would otherwise impact populated areas. It is based on 500 x 500m model grid cells and calculated on a 5 year time step. The model combines location from areas designated for 100 or 500yr level protection, percent land, vegetation type, and elevation inputs to produce a suitability index for surge/wave attenuation potential ranging from 0.0 to 1.0. link
CPRA Master Plan Predictive Modeling: Vegetation Model - Dr. Jenneke Visser, University of Louisiana at Lafayette CPRA The vegetation model (LAVegMod) described in this appendix is the next generation of a similar model (habitat switching module) initially developed as part of the Louisiana Coastal Area study (Visser et al. 2003). LAVegMod divides the original 5‐habitat model for the Louisiana coast into 19 vegetation types. LAVegMod provides longer estimates of interannual variation in aboveground biomass; however, biomass varies with vegetation type. The model is intended as a tool for protection and restoration planning that provides repeatable estimates of the changes in species composition based on changes in hydrology and wetland area. This tool was developed for use by a trained modeler and is dependent on other models that forecast changes in hydrology and wetland area. link
CPRA Master Plan Predictive Modeling: Wetland Morphology Model – Brady Couvillion, U.S. Geological Survey CPRA The Wetland Morphology model was developed to predict coastal Louisiana wetland morphologic dynamics in a changing environment (e.g., global warming, eustatic sea‐ level rise [ESLR], land subsidence, freshwater and mineral sediment supply reductions). The model consists of relative elevation and landscape change sub‐models that are developed based upon the best available data and our most recent understanding of the role of coastal biophysical processes including land loss, land gain, marsh collapse, sediment transport, sediment deposition, sediment retention, vertical accretion, organic matter production, sea level rise (SLR), and subsidence on shaping coastal morphology. link
CropScape USDA CropScape is a geospatial data service which offers advanced tools such as interactive visualization, web-based data dissemination and geospatial queries and automated data delivery to systems such as Google Earth. CropScape was developed in cooperation with the Center for Spatial Information Science and Systems at George Mason University and is hosted their website link
CRSSP Imagery-Derived Requirements (CIDR) USGS The CRSSP Imagery-Derived Requirements (CIDR) Tool enables U.S. Federal civil agencies to enter near-term land remote sensing data requirements. Log in from USGS needed. Data tool is for upload of data acquisition for remote sensing data, related to USGS EarthExplorer Tool. link
Discharge Monitoring Report (DMR) Pollutant Loading Tool USEPA The Discharge Monitoring Report (DMR) Pollutant Loading Tool is a new tool designed to help you determine who is discharging, what pollutants they are discharging and how much, and where they are discharging. The tool calculates pollutant loadings from permit and DMR data from EPA‘s Permit Compliance System (PCS) and Integrated Compliance Information System for the National Pollutant Discharge Elimination System (ICIS-NPDES). Data is available for the years 2007 through 2011. Pollutant loadings are presented as pounds per year and as toxic-weighted pounds per year to account for variations in toxicity among pollutants. link
ECHO Enforcement & Compliance History Online Compliance Database USEPA ECHO, Enforcement and Compliance History Online, is a Web tool developed and maintained by the Office of Enforcement and Compliance Assurance (OECA) for public use. The ECHO Web site, publicly accessible and EPA-maintained, provides compliance and enforcement information for approximately 800,000 regulated facilities nationwide. link
EDMS (Electronic Document Management System) – DMR data which isn’t entered in ICIS LDEQ EDMS stands for Electronic Document Management System, the Louisiana Department of Environmental Quality's electronic repository of official records that have been created or received by DEQ. All DEQ employees are responsible for ensuring official records are routinely submitted to the EDMS. Employees and members of the public can search and retrieve documents stored in the EDMS via this web application. link
Effluent standards LDEQ Water quality based effluent limitations for point source permitting are based on the TMDL and WLA. Implementation plans are based on the TMDL and the LA. The water quality based approach is to establish pollution control limits for waters not meeting the State's water quality standards. In this context, the TMDL process includes assessment for water quality standards attainment, identification of water quality limited waters, the ranking and targeting of high priority waters, and the development of TMDLs that should result in the attainment of water quality standards when implemented (USEPA, 1991). Identification of Nutrient limits and loading are an important part of the effluent standards process. link
Fertilizer Use Data USDA/ERS This product brings together data on fertilizer consumption in the United States by plant nutrient and major selected product, as well as consumption of mixed fertilizers, secondary nutrients, and micronutrients. Share of crop area receiving fertilizer and fertilizer use per receiving acre, by nutrient, are presented for the major producing States for corn, cotton, soybeans, and wheat. Additional data include fertilizer farm prices and indices of wholesale fertilizer price. Fertilizer price data (table 7) have been updated through 2012. Fertilizer price indexes (table 8) have been updated through 2011. Fertilizer consumption and use (tables 1-6) have been updated through 2010. Fertilizer consumption and use for corn (tables 9 to 14) and for cotton (tables 15 to 20) have been updated through 2010. Fertilizer consumption and use for wheat (tables 27 to 32) have been updated through 2009. Crop-specific updates occur when survey data from the Agricultural Resource Management Survey and NASS' Agricultural Chemical Usage Data become available. link
Forestry Best Management Practices (BMPs) LDAF This manual is written to be a practical field guide for forest landowners, logging contractors and the forest industry to ensure water quality during forestry operations. It sets forth the voluntary guidelines and procedures to be followed for each operation and describes the federally mandated Best Management Practices (BMPs) for forestry operations in wetlands. Each chapter is written as a stand-alone guide. BMPs common to several operations will appear with each. link
GOMA Nutrients Reduction Decision Support Toolbox GOMA The Nutrient Reduction Decision Support Toolbox is intended for use by state and local agencies and other organizations interested in reducing nutrients (nitrogen and phosphorus) and other pollutants to our waterbodies. The toolbox originated from the Gulf of Mexico Alliance (GOMA) Nutrient Reduction Priority Issue Team (PIT) and its initiatives to reduce the size of the hypoxic zone in the Gulf of Mexico as well as occurrences of hypoxic events across Gulf of Mexico coastal and estuarine waters. Nutrient reduction efforts must be made throughout the five Gulf states, as well as the states within the upper and lower Mississippi and Ohio River Basins to be successful at reducing Gulf hypoxia. The toolbox is based on a comprehensive and holistic framework for nutrient reduction developed through the collaborative interaction of local, state, and federal agencies; non-governmental organizations; agricultural producers; private businesses; and academic institutions. Each of the drawers in the toolbox represents one of the 10 key decision elements that are essential to reducing nutrients and their impacts within our waters. link
Green Infrastructure USEPA Green infrastructure uses vegetation and soil to manage rainwater where it falls. By weaving natural processes into the built environment, green infrastructure provides not only stormwater management, but also flood mitigation, air quality management, and much more. Resources related to green infrastructure basics, tools, case studies, research, and library. link
Gulf Coast Ecosystem Restoration Task Force (GCERTF) USEPA The Gulf Coast Ecosystem Restoration Task Force was created by President Obama through an Executive Order (PDF) on October 5, 2010, and is the result of a recommendation made in Secretary Mabus' report on long term recovery following the Deepwater Horizon Oil Spill. By October 5, 2011, the Task Force is charged with development of a restoration strategy that proposes a Gulf Coast ecosystem restoration agenda. link
Gulf Hypoxia Action Plan 2008 for Reducing, Mitigating, and Controlling Hypoxia in the Northern Gulf of Mexico and Improving Water Quality in the Mississippi River Basin USEPA The 2008 Action Plan describes a national strategy to reduce, mitigate, and control hypoxia in the Northern Gulf of Mexico and improve water quality in the Mississippi River Basin. link
Gulf Hypoxia Monitoring Implementation Plan NOAA Provide sufficient monitoring data to ensure that management is adequately informed in efforts to achieve the Coastal Goal. Assess annual changes in the magnitude, seasonality, duration, and distribution of hypoxia, and relate these to management activities that affect nutrient loading and other influences on hypoxia. Provide adequate data for predictive models to develop accurate forecasts of hypoxia given alternative management targets for nutrient reduction and alternative scenarios of climate change. Determine the relationship between hypoxic zone magnitude, timing, and distribution, and the distribution, production, and health of ecologically and commercially important finfish and shellfish. link
Gulf of Mexico Data Atlas NOAA The Gulf of Mexico Data Atlas provides answers to questions related to the physical environment, marine resources, and economic activity in the Gulf of Mexico. Information is presented in the form of map plates with descriptions, written by recognized subject matter experts, explaining how the data were gathered and how they are relevant. The Gulf of Mexico Data Atlas has data from federal, state, non-governmental agencies, and academia. Web-based mapping abilities. link
Gulf of Mexico Hypoxia Watch NOAA A web-based data viewer. The objective of Hypoxia Watch is to develop new near-real time data and map products using shipboard measurements of bottom-dissolved oxygen and disseminate them over the Internet. The data collected from annual Southeast Area Monitoring and Assessment Program (SEAMAP) summer groundfish surveys is used to generate products that form the basis for summertime advisories on anoxic and hypoxic conditions in the north-central Gulf of Mexico. link
ICIS Integrated Compliance Information System) Permit Discharge Monitoring Report (DMR) Data USEPA The Integrated Compliance Information System (ICIS) is a secure system only available to EPA and state users. The public should use the Enforcement and Compliance History Online. ECHO is a Web-based tool that provides public users with compliance monitoring and enforcement data. ICIS provides web access to enforcement and compliance assurance data to agencies. ICIS has two main components: ICIS Federal Enforcement and Compliance (ICIS-FE&C) which provides data and support for federal enforcement tracking, targeting, and reporting and ICIS National Pollutant Discharge Elimination System (ICIS-NPDES) which provides the ability for ICIS users to manage their NPDES program by tracking permits, limits, discharge monitoring data and other program reports. ICIS, integrating data from several separate data systems, is a multi-year system modernization project that will be completed in late 2014. The last phase of development, currently underway, is the preparation for data migration from the Air Facility Data System (AFS). AFS System tracks permits and enforcement and compliance assurance data for major stationary sources of air pollution. EPA's ability to target the most critical environmental problems will improve as the system integrates data from all media. link
International Stormwater BMP Database USEPA The International Stormwater Best Management Practices (BMP) Database website, contains a database of over 500 BMP studies, performance analysis results, tools for use in BMP performance studies, monitoring guidance and other study-related publications. The overall purpose of the project is to provide scientifically sound information to improve the design, selection and performance of BMPs. Continued population of the database and assessment of its data will ultimately lead to a better understanding of factors influencing BMP performance and help to promote improvements in BMP design, selection and implementation. link
Iowa report - Agricultural Science and Technology (CAST) Report: Assessing the Health of Streams in Agricultural Landscapes: The impacts of Land Management Change on Water Quality Iowa Report to address the relationship between land management and stream water quality, and in particular factors that seem to negate or minimize the impacts of farm management practice changes on stream water quality improvements. This report seeks to (1) examine issues linking land management to tangible environmental change, (2) address the time scale for change, and (3) identify factors that may be limiting water quality and biological improvements in the presence of improved practices within agriculturally dominated watersheds. link
Lake Pontchartrain Basin Foundation – Hydrocoast Map LPBF Predictive salinity maps used to indicate hydrologic conditions based on field data, MODIS satellite imagery, precipitation data, and permanent monitoring stations. Maps focus on Lake Maurepas, Lake Pontchartrain, Lake Borgne, MRGO, and the Breton Sound areas. They can be used to show water movement caused by changes in hydrology (diversions) and weather conditions. link
LAQUAL LDEQ Steady-state one-dimensional in-stream model. Model can be used to simulate nutrients. link
LDEQ Ambient Water Quality Network data LDEQ LDEQ routine ambient water quality monitoring data from 1958 to present. Monitoring cycles have varied among sites, however for the past 10 years, nearly all 470+ subsegments are monitored at least once every four years, with approximately 30 sites monitored every year. Nutrients and nutrient-related parameter data are collected as part of the ambient monitoring network. link
LDEQ Discharge Monitoring Reports (DMRs) LDEQ Sample collection and analytical results required by an effective permit (EPA or state issued) must be reported to the enforcement authority (EPA or state) through the submission of DMRs (EPA Form 3320-1). An original and one legible copy of the DMRs must be submitted to the enforcement authority by the date specified in the permit. This data is entered into a national database available to the public. It is extremely important that the data reported on the DMR be accurate, timely, and legible to ensure the facility’s compliance status is correctly reflected. The reported data will be compared with the current limits contained in the permit or any enforcement order to determine facility compliance. It should be noted that a DMR is required even if the facility did not have a discharge during a reporting period. link
LDEQ Integrated Reports LDEQ The Integrated Report (IR) is the current form of biennial reporting of the status of Louisiana waters. The IR is made up of what was once called the 305(b) Water Quality Inventory Report and the 303(d) List of Impaired Waterbodies. One of the primary focuses of the IR is on the use of five categories and three subcategories to which waterbodies or waterbody/impairment combinations can be assigned. Categorization under IR guidance allows for a more focused approach to water quality management by clearly determining what actions are required to protect or improve individual waters of the state. The IR categories and definitions can be found at the link below. Other changes resulting from U.S. EPA's IR guidance can be found in the 2002 Water Quality Inventory, Executive Summary. link
LDEQ Interactive Mapping Application (LIMA) LDEQ Web based geographic mapping tool supported by the LDEQ GIS Center. link
LDEQ Louisiana Environmental Data Access Center LDEQ LDEQ's data access page. Most pertinent link is to the LDEQ routine ambient water quality monitoring data (see description above). Air monitoring data for nutrients is available on the "Sites" tab for Ambient Air Data. link
LDEQ Nonpoint Source (NPS) Annual Reports LDEQ Nonpoint Source Annual Reports are prepared in compliance with Section 319 of the Clean Water Act. The purpose of the report is to provide an overview of progress made in reducing NPS pollution and improving water quality in the State of Louisiana. Annual Reports are available from 2001 through 2011. link
LDEQ Nonpoint Source Watershed Implementation Plans (WIPs) LDEQ Watershed Implementation Plans (WIPs) are an important part of the NPS management strategy for watershed restoration. The WIP is developed through a collaborative effort among people that live in the watershed (i.e., the "watershed community"). LDEQ has facilitated establishment of watershed coordinators to assist local stakeholders in solving their NPS water quality issues. Through the stakeholder process, WIPs emerge as living documents from which future actions are taken to protect and restore local waters. WIPs have been developed to target where in the watershed the largest NPS loads may originate. Through the watershed planning process, LDEQ and LDAF partner to compile information on acreage of agricultural BMPs implemented through Farm Bill Programs and Section 319 funds. Agricultural BMPs are not the only types of practices that are implemented through watershed restoration programs. The local focus may be on individual home sewerage systems or urban storm water, sand and gravel mines or stream bank protection. Current water quality problems are the focus for watershed planning and restoration efforts link
LDEQ Sanitary Wastewater Compliance Assistance Training (SWAT school) LDEQ A training class for sanitary wastewater compliance assistance. link
LDEQ. 2011. Louisiana’s Nonpoint Source Management Plan, 2011-2016 LDEQ Outlines LDEQ's commitment to improving water quality through partial or full restoration of water bodies within Louisiana. Includes regulations, management practices, status and trends, and targets for partial or full restoration. link
Louisiana Administrative Code. 2011. LAC Title 33 Part IX. Environmental Quality -Water Quality - Water Pollution Control LDEQ Declares waters of the state of Louisiana are among the state's most important natural resources and their continued protection and safeguard is of vital concern to the citizens of this state. To insure the proper protection and maintenance of the state's waters, authorizes adoption of a system to control and regulate the discharge of waste materials, pollutants, and other substances into the waters of the state. Establishes surface water quality standards which will: 1. provide for the protection and preservation of the abundant natural resources of Louisiana's many and varied aquatic ecosystems; 2. protect the public health and welfare that might otherwise be threatened by degradation of water quality; 3. protect or enhance the quality of public waters for designated uses; and 4. serve the objectives of the Louisiana Water Control Law and the Clean Water Act. In particular for nutrients, LAC 33:IX.1109 and 1119 (Antidegradation Policy/Implementation, including reference to NPS BMPs) and LAC 33:IX.1113(B)(8) (narrative nutrient criteria). link
Louisiana Administrative Code. 2011. Title 33, Part IX, Subpart 2, Section 2505. Permit Application and Special LPDES Program Requirements; Concentrated Animal Feeding Operations. LDEQ Requires permits fro the discharge of pollutants from any point source into waters of the state. Applies only to facilities and discharges within the scope of the NPDES program. Establishes permit requirements and conditions for facilities including CAFOs link
Louisiana Coastal Area Program (LCA), USACE Mississippi River Hydrodynamic and Delta Management Study (MRHDM) USACE/CPRA The Mississippi River Hydrodynamic and Delta Management (MRHDM) Study is the first large-scale, long-term restoration assessment investigated under the LCA Program. This study will identify and evaluate a combination of large-scale management and restoration features to address the long-term sustainability of the lower Mississippi River Deltaic Plain, as authorized under Section 7003 of the Water Resource Development Act (WRDA) 2007. The MRHDM study area covers the lower Mississippi River and surrounding deltaic regions. The hydrodynamic study effort will focus on the Mississippi River, while the delta management study effort will focus on the adjacent basins. This study area will be further defined as potential restoration opportunities are identified. Specifically, these modeling tools will be used to evaluate: hydraulics and the relationship of water flow conditions to sediment transport, salinities, deposition and erosion, and the net results of these processes on the river channel and its distributaries’ morphology. Ecosystem restoration features that maximize the deposition of Mississippi River sediment in coastal areas and aid in restoring delta growth and wetland sustainability will be identified and evaluated. Large-scale river diversions, dredging and outfall management measures will be considered. link
Louisiana Land Use Toolkit Louisiana Department of Economic Development (LED) and the Center for Planning Excellence (CPEX) The Louisiana Land Use Toolkit is an online resource for local jurisdictions. The Toolkit contains a model set of development regulations that can be used to help guide future growth and development in an sustainable and economically competitive manner. The Toolkit is a shared resource from which parishes and municipalities can adopt a complete development code or select cafeteria-style from individual tools that meet their specific needs. The Toolkit is intended to be used in two ways. At its simplest, the Toolkit is a standalone zoning or subdivision code, or a series of growth management tools that can be selected individually to meet specific needs. In its more complete form, the Toolkit can be combined and customized to build a complete development code. The following components make up the Louisiana Land Use Toolkit. link
Louisiana Municipal Association (LMA) LMA Association of Municipalities in Louisiana. link
Louisiana State University Agricultural Center (AgCenter) Research & Extension. 2011. Publication 2806 – Poultry Environmental Best Management Practices BMPs LSU AgCenter Poultry production is Louisiana’s largest animal industry and its $1.5 billion contribution to the state’s economy makes it the second-largest segment of Louisiana’s agricultural industries. Commercial broilers are produced by 350 growers in 11 parishes including Bienville, Claiborne, Jackson, Lincoln, Natchitoches, Ouachita, Sabine, Union, Vernon, Webster and Winn. There also are 580 commercial and small table egg producers in Louisiana housing more than 1 million egg-laying hens and producing more than 21 million dozen eggs. On-farm receipts from broiler production, breeder flocks and table egg production bring in nearly $812 million. Poultry processing and other value-added enterprises doubled this amount to nearly $1.9 billion. Poultry production represented the largest part of the $2.6 billion in economic contributions by animal agricultural industries in Louisiana for 2010. It ranks second only to forestry in its overall economic contribution to the state. Poultry production, by its nature, requires specific practices to conserve and protect soil and water resources. Best management practices (BMPs) have been determined to be an effective and practical means of reducing point and nonpoint-source water pollutants at levels compatible with environmental quality goals. The primary purpose for implementation of BMPs is to conserve and protect soil, water and air resources. BMPs for poultry farms are a specific set of practices used by farmers to reduce the amount of soil, nutrients, pesticides and microbial contaminants entering surface water and groundwater while maintaining or improving the productivity of agricultural land. This BMPs manual is a guide for the selection, implementation and management of those practices that will help poultry farmers conserve soil and protect water and air resources. link
Low Impact Development (LID) USEPA LID is an approach to land development (or re-development) that works with nature to manage stormwater as close to its source as possible. LID employs principles such as preserving and recreating natural landscape features, minimizing effective imperviousness to create functional and appealing site drainage that treat stormwater as a resource rather than a waste product. There are many practices that have been used to adhere to these principles such as bioretention facilities, rain gardens, vegetated rooftops, rain barrels, and permeable pavements. By implementing LID principles and practices, water can be managed in a way that reduces the impact of built areas and promotes the natural movement of water within an ecosystem or watershed. Applied on a broad scale, LID can maintain or restore a watershed's hydrologic and ecological functions. LID has been characterized as a sustainable stormwater practice by the Water Environment Research Foundation and others. link
Low Impact Development (LID) "Barrier Busters" Fact Sheet Series USEPA This seven-part series of fact sheets is primarily intended for state and local decision makers who are considering adoption of Low Impact Development (LID), but who have concerns with LID. These fact sheets explain the benefits of LID in clear terms and through examples. Specific fact sheets in this series directly address specific concerns that have been raised about adopting LID, thereby busting barriers. link
Lower Mississippi River Sub-Basin Committee on Gulf Hypoxia USEPA The Lower Mississippi River Sub-basin Committee on Gulf Hypoxia is being formed as part of the Action Plan for Reducing, Mitigating, and Controlling Hypoxia in the Northern Gulf of Mexico.* The states of Arkansas, Louisiana, Mississippi, Missouri, and Tennessee signed onto the Action Plan in October 2000. The LMR Sub-basin Committee will establish a process of communication and coordination aimed at the following efforts: 1.Supporting implementation of the Action Plan throughout the Mississippi River Basin, and working with other states to ensure federal funding for implementation; 2.Coordinating implementation of the Action Plan in the lower river basin. Under 2), states will work in a cooperative manner to: a. Compile information on nitrate/nutrient loading to the Mississippi and Atchafalaya River basins, and assess the impacts of federal and state programs aimed at reducing nitrate/nutrient loading; b. Coordinate interstate watershed programs that can improve water quality and reduce nutrient loading in the Lower Mississippi River sub-basin and connected smaller watersheds; c. Promote and coordinate complimentary regional and state efforts to improve water quality, such as the Lower Mississippi Valley Initiative (LMVI), the Lower Mississippi River Conservation Committee, the Gulf of Mexico Program Nutrient Enrichment Focus team, and others. d. Establish an open process in which interested stakeholders, along with partner agencies and universities, can participate, and support water quality/nutrient reduction programs initiated by those participants. link
Lower Mississippi River Sub-basin Committee on Hypoxia. 2007. Lower Mississippi River Sub-basin Nutrient Reduction Strategies. LMRSB Strategy document produced by the LMRSBC on Hypoxia outlining strategies for nutrient reduction. Strategies include setting reduction targets, establishing a baseline, identify opportunities to restore floodplain wetlands, detail needs for additional assistance to meet goals and promote additional funding. link
Lower Mississippi River Sub-basin Committee on Hypoxia. 2009. A Summary of Data Sources on Nutrient Loading and Removal in the Lower Mississippi River Subbasin, In fulfillment of EPA Grant MX965660. LMRSB Summary of data sources on nutrient loading and removal in the LMR sub-basin. link
LSU Ag Center Environmental Concerns Poultry Topics LSU AgCenter Material available for various environmental concerns for poultry, including poultry litter, bmps, and sampling link
Model Landscape Code LDEQ A website dedicated to landscape laws and storm water management for the LDEQ Nonpoint Pollution Program. link
Moving Forward on Gulf Hypoxia: Annual Report 2010 USEPA The report tracks interim progress on the actions accomplished in Fiscal Year 2010 by Task Force member states and federal agencies and their partners to reduce nitrogen and phosphorus loading in the Mississippi/Atchafalaya River Masin (MARB) and, ultimately, to reduce the size and severity of the Gulf of Mexico hypoxic zone. link
Moving Forward on Gulf Hypoxia: Annual Report 2011 USEPA The report tracks interim progress on the actions accomplished in Fiscal Year 2011 by Task Force member states and federal agencies and their partners to reduce nitrogen and phosphorus loading in the Mississippi/Atchafalaya River Masin (MARB) and, ultimately, to reduce the size and severity of the Gulf of Mexico hypoxic zone. link
National Agroforestry Center USDA The USDA National Agroforestry Center (NAC) had its origins in the 1990 Farm Bill. It began as a Forest Service Research and State & Private Forestry effort in 1992 and expanded into a partnership with the Natural Resources Conservation Service (NRCS) in 1995. It is administered by the Forest Service's, Washington, DC, office of Research and Development. NAC offices are located in Lincoln, Nebraska and Blacksburg, Virginia. NAC accelerates the application of agroforestry through a national network of partners. Together, we conduct research, develop technologies and tools, coordinate demonstrations and training, and provide useful information to natural resource professionals. Agroforestry intentionally combines agriculture and forestry to create integrated and sustainable land-use systems. Agroforestry takes advantage of the interactive benefits from combining trees and shrubs with crops and/or livestock. Agroforestry practices include: Alley Cropping, Forest Farming, Riparian Forest Buffers, Silvopasture, and Windbreaks. link
National Hydrology Dataset (NHD) USGS The National Hydrography Dataset (NHD) is the surface water component of The National Map. The NHD is a digital vector dataset used by geographic information systems (GIS). It contains features such as lakes, ponds, streams, rivers, canals, dams and streamgages. These data are designed to be used in general mapping and in the analysis of surface-water systems. link
National Park Service-USGS Water Quality Partnership Jean Lafitte National Historic Park and Preserve NPS/USGS The Jean Lafitte National Historic Park and Preserve is part of the National Park Service and USGS Water Quality Partnership. Project types include technical assistance and fixed station monitoring. Information on water quality, and fish and aquatic invertebrate community is available for Barataria Preserve in Louisiana. link
National Pollutant Removal Performance Database Center for Watershed Protection Pollutant removal efficiency, usually represented by a percentage, specifically refers to the pollutant reduction from the inflow to the outflow of a system. The two most common computation methods are event mean concentration (EMC) efficiency and mass or load efficiency. When more than one method was used to calculate pollutant removal in a specific BMP study, mass or load-based measurements of removal efficiency were entered into the database rather than concentration-based measurements. Pollutant removal efficiency, usually represented by a percentage, specifically refers to the pollutant reduction from the inflow to the outflow of a system. The two most common computation methods are event mean concentration (EMC) efficiency and mass or load efficiency. When more than one method was used to calculate pollutant removal in a specific BMP study, mass or load-based measurements of removal efficiency were entered into the database rather than concentration-based measurements. link
National Resource Inventory (NRI) USDA/NRCS The National Resources Inventory (NRI) is a statistical survey of natural resource conditions and trends on non-Federal land in the United States. Non-Federal land includes privately owned lands, tribal and trust lands, and lands controlled by state and local governments. link
National Small Flows Clearinghouse (NSFC) USEPA The National Small Flows Clearinghouse (NSFC) was funded by the U.S. Environmental Protection Agency (EPA) to help America's small communities and individuals solve their wastewater problems through objective information about onsite wastewater collection and treatment systems. NSFC products and information are the only national resource of its type, dealing with small community wastewater infrastructure. link
National Stormwater Quality Database USEPA The University of Alabama and the Center for Watershed Protection were awarded an EPA Office of Water 104(b)3 grant in 2001 to collect and evaluate stormwater data from a representative number of NPDES (National Pollutant Discharge Elimination System) MS4 (municipal separate storm sewer system) stormwater permit holders. The initial version of this database, the National Stormwater Quality Database (NSQD, version 1.1) is currently being completed. These stormwater quality data and site descriptions are being collected and reviewed to describe the characteristics of national stormwater quality, to provide guidance for future sampling needs, and to enhance local stormwater management activities in areas having limited data. The monitoring data collected over nearly a ten-year period from more than 200 municipalities throughout the country have a great potential in characterizing the quality of stormwater runoff and comparing it against historical benchmarks. This project is creating a national database of stormwater monitoring data collected as part of the existing stormwater permit program, providing a scientific analysis of the data, and providing recommendations for improving the quality and management value of future NPDES monitoring efforts. No Louisiana monitoring data included in database. link
Nationwide Urban Runoff Program USEPA The Nationwide Urban Runoff Program (NURP) was conducted by EPA and many cooperating agencies. It was the first comprehensive study of urban stormwater pollution across the United States. NURP was established in 1978 as a 5-year program that examined: quality characteristics of urban runoff and similarities or differences at different urban locations, the extent to which urban runoff is a significant contributor to water quality problems across the nation, and performance characteristics and the overall effectiveness and utility of management practices for the control of pollutant loads from urban runoff. Final report from 1983 may be out of date, and no locations of NURP Projects noted in Louisiana. link
Nitrogen in Agricultural Systems: Implications for Conservation Policy USDA/ERS This report explores the use of nitrogen in U.S. agriculture and assesses changes in nutrient management by farmers that may improve nitrogen use efficiency. It also reviews a number of policy approaches for improving nitrogen management and identifies issues affecting their potential performance. Findings reveal that about two-thirds of U.S. cropland is not meeting three criteria for good nitrogen management related to the rate, timing, and method of application. Several policy approaches, including financial incentives, nitrogen management as a condition of farm program eligibility, and regulation, could induce farmers to improve their nitrogen management and reduce nitrogen losses to the environment. Similar to 2010 CEAP on Upper Miss Basin. Both analyses assess baseline nitrogen management on cropland according to three criteria: rate, timing, and method. link
NOAA Gulf of Mexico Ecosystems & Hypoxia Assessment (NGOMEX) modeling NOAA Building on nearly 20 years of research, the NGOMEX program addresses the hypoxic zone in the Gulf of Mexico through the funding of multi-year, interdisciplinary research projects. Current studies are documenting the dynamics of the hypoxic zone over the Louisiana continental shelf and helping to better define the biological, chemical, and physical processes that influence hypoxic zone development and determine its extent, and impacts on fisheries. link
NOAA Gulf of Mexico Hypoxic Zone Monitoring Implementation Plan NOAA A planning document that details scientific, technical, operational and financial components to establish observation systems for cooperative long-term monitoring of northern GOM hypoxic zone. link
NOAA Habitat Priority Planner NOAA ArcGIS based tool that aids in making decisions about conservation, restoration, and planning. The Habitat Priority Planner takes away much of the subjective nature of the process by providing a means of obtaining critical habitat analyses that are consistent, repeatable, and transparent. The program allows users to easily test various ideas and "what if" scenarios on the fly, making it the perfect tool to use in a group setting. Participatory mapping process that can help communities make land use decisions. link
NOAA Southeast Area Monitoring and Assessment Program (SEAMAP) NOAA The Southeast Area Monitoring and Assessment Program (SEAMAP) is a state/federal program designed to collect, manage, and disseminate fishery-independent data in the southeastern U.S. A main goal is to maximize data collection efficiency to provide managers with the best information possible to make decisions. Three components currently collaborate with NMFS (or NOAA Fisheries): SEAMAP-Gulf, SEAMAP-South Atlantic, and SEAMAP-Caribbean. Each component operates independently, planning and conducting surveys, and disseminating information in accordance with cooperatively established administrative policies and guideline. Congress has allocated SEAMAP funding since 1983. Funds are obligated annually to the southeastern states for surveys and studies via multi-year cooperative agreements. NMFS Office/Region/Science Center staff review and evaluate proposals based on technical merit, soundness of design, ability of the applicant to perform the proposed work, potential contribution of the project to national or regional goals, and appropriateness of proposed costs. The NMFS (or NOAA Fisheries) uses a portion of the funding for its segment of the survey work, plankton sorting, and administrative responsibilities. Surveys of shrimp, groundfish, plankton, and reef fish are conducted in the Gulf of Mexico. Shallow-water trawl and long-line surveys, a survey of Pamlico Sound, fish habitat characterization, and data management are the major activities in the South Atlantic. Spiny lobster and queen conch surveys and reef fish monitoring are important efforts in the Caribbean. Surveys by individual components reflect distinct regional needs and priorities, but surveys in one area often provide data important to researchers in other geographic regions. link
Nonpoint Source News Notes USEPA Nonpoint Source News-Notes is an occasional bulletin dealing with the condition of the water-related environment, the control of nonpoint sources of water pollution (NPS), and the ecosystem-driven management and restoration of watersheds. link
NRCS APEX (Agricultural Policy/Environmental eXtender) USDA/NRCS The Agricultural Policy/Environmental eXtender (APEX) model was developed for use in whole farm/small watershed management (Williams et al., 2000). The model was constructed to evaluate various land management strategies considering sustainability, erosion (wind, sheet, and channel), economics, water supply and quality, soil quality, plant competition, weather, and pests. Management capabilities include irrigation, drainage, furrow diking, buffer strips, terraces, waterways, fertilization, manure management, lagoons, reservoirs, crop rotation and selection, pesticide application, grazing, and tillage. Besides the farm management functions, APEX can be used in evaluating the effects of global climate/CO2 changes; designing environmentally safe, and economical landfill sites; designing biomass production systems for energy; and other spin-off applications. The model operates on a daily time step and is capable of simulating hundreds of years if necessary. Farms may be subdivided into fields, soil types, landscape positions, or any other desirable configuration. link
NRCS Code 590 for Nutrient Management Plans USDA/NRCS This standard establishes the acceptable criteria and documentation requirements for a plan that addresses the application and budgeting of nutrients for plant production. All nutrient sources, including soil reserves, commercial fertilizer, manure, organic byproducts, legume crops, and crop residues shall be accounted for and properly utilized. These criteria are intended to minimize nutrient entry into surface water, groundwater, and atmospheric resources while maintaining and improving the physical, chemical, and biological condition of the soil. link
NRCS Long-Term Agriculture Research (LTAR) network of data collection sites at federal scale ( USDA/NRCS Long-term Agroecosystem Research (LTAR) network of sites within HUC 2 level to provide platform for research on sustainability of US agricultural systems. As of Nov 2012, there are no Long-term monitoring locations in Louisiana. link
NRCS Water Quality Index for Agriculture USDA/NRCS This web-based software application was designed to provide a simple, convenient way to express multiple water quality parameters into a single, easy to understand value. A calculated WQIag# value is ranked from 1 to 10, where a value of 10 is assigned to the runoff water of highest quality and value of 1 to lowest water quality. link
Nutrient Tracking Tool (Saleh et al. 2011) USDA/ARS Web-based tool that compares agricultural management systems to calculate a change in nitrogen, phosphorous, sediment loss potential, and crop yield. Agricultural producers and land managers can enter a baseline management system and an alternative conservation management system and produce a report showing the nitrogen, phosphorous, sediment loss potential, and crop yield difference between the two systems. link
OpenNSPECT (Non-point Source and Erosion Comparison Tool, NOAA) NOAA Use the Open-source Nonpoint Source Pollution and Erosion Comparison Tool (OpenNSPECT) to investigate potential water quality impacts from development, other land uses, and climate change. OpenNSPECT was designed to be broadly applicable. When applied to coastal and noncoastal areas alike, the tool simulates erosion, pollution, and their accumulation from overland flow. link
Package Plants LDHH Set of guidance documents to be used to evaluate a total of 153,511 onsite wastewater treatment systems which have been permitted since August of 2001. In 2011, 805 installer and maintenance licenses were issued to qualified individuals. Approximately 45,625,000,000 gallons of wastewater per year is treated by onsite wastewater treatment systems in the state of Louisiana. link
Police Jury Association of Louisiana PJAL The Police Jury Association of Louisiana was created in 1924 to improve parish government in the State of Louisiana. Membership is open to each of the 64 parishes in the State of Louisiana, whether organized as a Police Jury, Parish Council or Parish Commission. The Association has an active and dynamic executive board of directors composed of a President, First Vice President, Second Vice President, Third Vice President, all Past Presidents, the Presidents of the recognized affiliate organizations, an At-Large Board Member, and a Board Member elected from each of the eight geographic regions of the State. link
Roth, J.L. and P.D. Capel. 2012. Changes in Water Budgets and Sediment Yields from a Hypothetical Agricultural Field as a Function of Landscape and Management Characteristics—A Unit Field Modeling Approach. U.S. Geological Survey. Scientific Investigations Report 2012–5203. USGS A report of using the Water Erosion Prediction Project (WEPP) model to simulate two landscape characteristics (slope and soil texture) and three agricultural management practices (land cover/crop type, tillage type, and selected agricultural land management practices) to evaluate their effects on the water budgets of and sediment yield from agricultural lands. The results of simulations demonstrate the magnitudes of potential changes in water budgets and sediment yields from lands as a result of landscape characteristics and agricultural practices adopted on them. These simulations showed that variations in landscape characteristics, such as slope and soil type, had appreciable effects on water budgets and sediment yields. As slopes increased, sediment yields increased in both the arid and humid environments. However, runoff did not increase with slope in the arid environment as was observed in the humid environment. In both environments, clayey soils exhibited the greatest amount of runoff and sediment yields while sandy soils had greater recharge and lessor runoff and sediment yield. Scenarios simulating the effects of the timing and type of tillage practice showed that no-till, conservation, and contouring tillages reduced sediment yields and, with the exception of no-till, runoff in both environments. Changes in land cover and crop type simulated the changes between the evapotransporative potential and surface roughness imparted by specific vegetations. Substantial differences in water budgets and sediment yields were observed between most agricultural crops and the natural covers selected for each environment: scrub and prairie grass for the arid environment and forest and prairie grass for the humid environment. Finally, a group of simulations was performed to model selected agricultural management practices. Among the selected practices subsurface drainage and strip cropping exhibited the largest shifts in water budgets and sediment yields. The practice of crop rotation (corn/soybean) and cover cropping (corn/rye) were predicted to increase sediment yields from a field planted as conventional corn. link
Scientific Assessment of Hypoxia in U.S. Coastal Waters Joint Committee on Ocean Science and Technology This report is an effort to assess the extent of efforts to understand and lessen hypoxia events and to identify opportunities for charting a way forward. Update on progress in determining dynamics of hypoxia in estuaries and coastal waters, and monitoring nutrien fluxes in watersheds and reducing nutrient transport across the landscape. link
Sheeder, S.A. and B.M. Evans. 2004. Estimating nutrient and sediment threshold criteria for biological impairment in Pennsylvania Watersheds. Journal of the American Water Resources Association 40 (4): 881-888. Penn State This study employs a simple nonlinear statistical approach to establish nitrogen, phosphorus, and sediment concentration and unit area load thresholds to aid in the evaluation of aquatic biological health of watersheds within the state of Pennsylvania. Flow, nitrogen and phosphorus species, sediment, basin area, land cover, and biological assessment data were assembled for 29 Pennsylvania watersheds. For each watershed, rating curves depicting flow versus load relationships were developed using the USEPA’s storage and retrieval database (STORET) flow and concentration data, then applied to daily flow data obtained from USGS daily flow gauging stations to estimate daily load between 1989 and 1999. The load estimates and concentration data were then sorted into six sets of data: mean annual unit area nitrogen, phosphorus, and sediment loads; and average nitrogen, phosphorus, and sediment concentrations. Results of Mann-Whitney tests conducted on each of the six datasets indicate that there is a statistically significant difference between the concentrations and unit area loads of nitrogen, phosphorus, and sediment in impaired and unimpaired watersheds. Concentration thresholds, calculated as the midpoint between the impaired and unimpaired watersheds’ 95 percent confidence interval for the median, were estimated to be 2.01 mg/L, 0.07 mg/L, and 197.27 mg/L for nitrogen, phosphorus, and sediment, respectively. Annual unit area load thresholds were estimated to be equal to 8.64 kg/ha, 0.30 kg/ha, and 785.29 kg/ha, respectively, for nitrogen, phosphorus, and sediment species. link
Smaller Scale such as irrigation and other water removal out-of-channel USEPA Techniques for managing polluted runoff from nonpoint source pollution through irrigation water management. link
Soil & Water Assessment Tool (SWAT) Modeling USDA/ARS The objective of the SWAT Model is to predict the effect of management decisions on water, sediment, nutrient and pesticide yields with reasonable accuracy on large, ungaged river basins. Available for download on web. link
SoilWeb USDA-NCSS SoilWeb: An Online Soil Survey Browser online soil survey can be used to access USDA-NCSS detailed soil survey data (SSURGO) for most of the United States. SoilWeb allows to explore mapped soil survey areas using an interactive Google map and view detailed information about map units and their components. This app runs in your web browser and is compatible with desktop computers, tablets, and smartphones. link
SONRIS (Strategic Online Natural Resources Information System), CPRA CPRA A web-based geographic data viewer showing master plan boundary, Coastal Reference Monitoring System (CRMS) stations and data, sand source projects, and coastal management permits and consistency information. LDNR also represented by this tool. link
Source Water Collaborative: Collaborative Toolkit Protecting Drinking Water Sources through Agricultural Conservation Practices USDA/NRCS The toolkit offers effective steps that source water protection professionals working at the state level can take to build partnerships with USDA's Natural Resources Conservation Service (NRCS) to get more agricultural conservation practices on the ground to protect sources of drinking water. Developed by the Source Water Collaborative, a group composed of 23 organizations working together to protect sources of drinking water, with support from EPA and in consultation with NRCS, the toolkit includes insightful tips and highlights specific opportunities states can take advantage of immediately. In addition, the Source Water Collaborative is working with the National Association of Conservation Districts to develop a locally-focused supplement to the toolkit to provide a step-by-step process for collaborating with conservation districts. link
Spreadsheet Tool for the Estimation of Pollutant Loads (STEPL), EPA Region 5 models USEPA Spreadsheet used to provide gross estimates of sediment and nutrient load reductions from the implementation Best Management Practices for various land uses. link
State Water Programs: Nutrient Reduction Programs and Methods ACWA Reduction of nutrient impairments to our nation’s waters is a top priority for states and interstates. As discussed in detail in the Executive Summary & Overview below, ACWA has a long history of working with the U.S. Environmental Protection Agency (“EPA”) on strategies to reduce nitrogen and phosphorus loadings to waterbodies. EPA has continued to emphasize the importance of state adoption of numeric nutrient criteria (“NNC”) as the most effective mechanism for ensuring accountable and verifiable reductions. However, states have long advanced that reductions also are being achieved via a rich mosaic of approaches that vary by state, pollutant of concern, sources, and collaborators. This report provides a high level summary of each state’s current approach to nutrient reduction. This report’s methodology, which was conducted in phases of survey, narrative drafting, and state review, is described below. We are pleased that this report consists of responses from every state and the District of Columbia [hereinafter “state(s)”]. link
STORET USEPA The National STORET Data Warehouse is a repository for water quality monitoring data collected by federal agencies, states and territories, tribes, volunteer monitoring organizations, and universities. It contains over 70 million records of water quality data from across jurisdictional boundaries. link
Stormwater LDEQ Permits are required for industrial facilities, construction projects, and MS4 facilities as defined in LAC 33:IX.2511. Construction and Industrial stormwater permits require the development of a stormwater pollution prevention plan as defined by the permits (LAR100000 and LAR050000). The Multi-Sector General Permit for Industrial facilities (LAR05000) assigned benchmark limitations for nutrient parameters in sector C. MS4 permits require the development of a stormwater management plan which requires the MS4 to implement controls to reduce pollutants in discharges. link
The National Small Flows Clearinghouse (NSFC) USEPA The U.S. Environmental Protection Agency publish the “Onsite Wastewater Treatment Systems Manual”. This document can be used to provides up-to-date information on onsite wastewater treatment system (OWTS) siting, design, installation, maintenance, and replacement. It reflects significant advances that the expert community has identified to help OWTSs become more cost-effective and environmentally protective, particularly in small suburban and rural areas. In addition to providing a wealth of technical information on a variety of traditional and new system designs, the manual promotes a performance-based approach to selecting and designing OWTSs. This approach will enable States and local communities to design onsite wastewater link
Tides and Currents NOAA CO-OPS provides the national infrastructure, science, and technical expertise to monitor, assess, and distribute tide, current, water level, and other coastal oceanographic products and services that support NOAA's mission of environmental stewardship and environmental assessment and prediction. CO-OPS provides operationally sound observations and monitoring capabilities coupled with operational Nowcast Forecast modeling. link
Tiered collaborative strategies for reducing hypoxia and restoring the Gulf of Mexico USDA/ARS Strategies for addressing nutrient pollution and hypoxia include tiered collaboration starting on the field with landowner through cooperation with federal agencies. Hypoxia in the Gulf of Mexico is a serious national water quality issue. Successful frameworks for addressing hypoxia must include tiered collaboration starting on the field with the stakeholder (landowner)and travelling all the way through to Federal cooperation. Frameworks must cross state boundaries and work toward a common goal. Strategic implementation plans for states draining into the Gulf of Mexico should be compatible, comparable, and consistent if successful nutrient reduction is to occur. link
Tool for Bacterial Load Duration Curves UT Statistical analysis tool used evaluate pollutants and determine TMDLs. Primarily used for conservative parameters. link
U.S. Geological Survey – Water Resources USGS The U.S. Geological Survey (USGS) collects information needed to understand the Nation's water resources, and provides access to water data, publications, and maps, as well as to recent water projects and events. link
Update expired permits LDEQ Copies can be found in EDMS (see URL in the Website Column) or on the LDEQ Water permits Website; - Water discharge permits are required for discharge of pollutants to waters of the state Permits are renewed on a 5 year cycle. link
Urban Waters Outreach Toolkit USEPA Toolkit for the Anacostia Watershed Outreach and Education Project supports the EPA Urban Waters Outreach program. link
USACE Beneficial Use of Dredged Material Program (BUDMAT) USACE Program for ecosystem restoration involving placement of material dredged from Corps maintained navigation channels in open water or degraded marsh. link
USACE Engineer Research and Development Center (ERDC) USACE The U.S. Army Corps of Engineers’ (USACE) Engineer Research and Development Center (ERDC) helps solve our Nation’s most challenging problems in civil and military engineering, geospatial sciences, water resources, and environmental sciences for the Army, Department of Defense, civilian agencies, and our Nation’s public good. Water Resources research areas include •Inland and Coastal Navigation Hydropower, •Flood Risk Management and Coastal Systems, •Water Supply, Emergency Management, •Environment – Restoration, Regulation, Stewardship, •Water Resources Infrastructure, •System-Wide Water Resources. From the available information on the website, unable to make clear determination of usability for strategy. link
USACE Non-Cost Shared Programs USACE The U.S. Army Corps of Engineers provides comprehensive planning, design, construction and engineering management support to the Army and the nation. Within the scope of this mission, Department of Defense entities can engage the Corps, on a cost reimbursement basis, to act as an extension of their staff. In cases where unique engineering support is unavailable through private sector architect-engineer firms, the Corps may be permitted to provide technical support to non-DoD federal agencies, to states and to localities. The Thomas Amendment, Section 211, Water Resources Development Act of 2000, discusses when the Corps can provide specialized or technical services to a state or local government. USACE supports the Environmental Protection Agency's (EPA) Superfund Program, upon EPA request, by managing design and construction contracts and providing technical assistance in support of remedial response cleanup of hazardous waste sites. USACE also is a partner with EPA and other federal agencies in helping communities prevent, assess, safely clean up, and sustainably reuse Brownfields. Brownfields are abandoned, idled, or under-used industrial and commercial facilities where expansion or redevelopment is complicated by real or perceived environmental contamination. link
USACE Upper Mississippi River Restoration (UMRR) (formerly known as the Environmental Management Program or EMP) USACE The Corps of Engineers' Upper Mississippi River Restoration (UMRR) program (formerly known as the Environmental Management Program or EMP) has studies and projects in the Upper Mississippi River system north of Cairo, Illinois. The system includes the Illinois River. The program authorized by Congress in 1986 emphasizes habitat rehabilitation and enhancement projects and long-term resource monitoring. The habitat project component includes dredging backwater areas and channels, constructing dikes, creating and stabilizing islands, and controlling side channel flows and water levels. In the St. Paul District, the projects are located along the Minnesota and Mississippi Rivers from Guttenberg, Iowa (Lock and Dam 10), to Minneapolis, Minnesota, a distance of about 250 river miles. The long-term resource monitoring component includes monitoring trends and impacts with respect to selected resources, developing products for resource management decisions, and maintaining river information databases. link
USDA Economic Research Service (ERS) Data USDA/ERS Data products (including databases) available on topics of animal products, crops, farm economy, farm practices & management, food & nutrition assistance, food choices & health, food markets & rices, food safety, international markets & trade, natural resource & environment, and rural economy & population. link
USDA Economic Research Service (ERS) Report USDA/ERS Publications available on topics of animal products, crops, farm economy, farm practices & management, food & nutrition assistance, food choices & health, food markets & rices, food safety, international markets & trade, natural resource & environment, and rural economy & population. link
USDA. 2010. Economic Research Service, State Fact Sheets – Louisiana USDA A Louisiana state fact sheet on population, income, food insecurity, education, and employment; federal funds; organic agriculture; farm characteristics; farm financial indicators; and top commodities, exports, and counties (parishes). link
USDA/NRCS 2010 CEAP Project Assessment of the effects of conservation practices on cultivated cropland in the Upper Mississippi River USDA/NRCS This report is one in a series of regional reports that continues the tradition within USDA of assessing the status, condition, and trends of natural resources to determine how to improve conservation programs to best meet the Nation's needs. These reports use a sampling and modeling approach to quantify the environmental benefits that farmers and conservation programs are currently providing to society, and explore prospects for attaining additional benefits with further conservation treatment. link
USDA/NRCS 2011 CEAP Project Assessment of the Effects of Conservation Practices on Cultivated Cropland in the Ohio-Tennessee River Basin USDA/NRCS This report is one in a series of regional reports that continues the tradition within USDA of assessing the status, condition, and trends of natural resources to determine how to improve conservation programs to best meet the Nation's needs. These reports use a sampling and modeling approach to quantify the environmental benefits that farmers and conservation programs are currently providing to society, and explore prospects for attaining additional benefits with further conservation treatment. link
USDA/NRCS Assessment of the Effects of Conservation Practices on Cultivated Cropland in the Missouri River Basin USDA/NRCS This report is one in a series of regional reports that continues the tradition within USDA of assessing the status, condition, and trends of natural resources to determine how to improve conservation programs to best meet the Nation's needs. These reports use a sampling and modeling approach to quantify the environmental benefits that farmers and conservation programs are currently providing to society, and explore prospects for attaining additional benefits with further conservation treatment. link
USEPA and LDEQ Reports - DO TMDLs and/or nutrient TMDLs USEPA/LDEQ Total maximum daily load reports. Some reports may provide nutrient data and/or allocations. link
USEPA Biocriteria Stressor Identification USEPA A collection of biological assessment and criteria links, documents and reports. In general, provides guidance on how biological information can be used in water quality management programs. link
USEPA CADDIS (Causual Analysis/Diagnosis Decision-making System) causual evaluations in aquatic systems USEPA The Causal Analysis/Diagnosis Decision Information System, or CADDIS, is a website developed to help scientists and engineers in the Regions, States, and Tribes conduct causal assessments in aquatic systems. It is organized into five volumes. Vol 1: Stressor Identification provides a step-by-step guide for identifying probable causes of impairment in a particular system, based on the U.S. EPA's Stressor Identification process. Vol 2: Sources, Stressors & Responses provides background information on many common sources, stressors, and biotic responses in stream ecosystems. Vol 3: Examples & Applications provides examples illustrating different steps of causal assessments. Vol 4: Data Analysis provides guidance on the use of statistical analysis to support causal assessments. Vol 5: Causal Databases provides access to literature databases and associated tools for use in causal assessments. link
USEPA Economic Guidance for Water Quality Standards USEPA This guidance is for use by states and EPA regional offices in considering economics at various points in the process of setting or revising water quality standards. Includes link to spreadsheet tools and workbooks for use attainability analyses, variances and antidegradation. link
USEPA Harmful Algal Blooms Online USEPA An online resource for Harmful Algal Blooms (HABs). Includes areas of cyanotoxins; detection; health and ecological effects; research; causes, prevention and mitigation; policies and guidelines; and links to state information. link
USEPA Model Ordinances to Prevent and Control Nonpoint Source Pollution USEPA This web site includes model ordinances to serve as a template for those charged with making decisions concerning growth and environmental protection. For each model ordinance listed, there are several real -life examples of ordinances used by local and state governments around the nation. The ordinances address matters that are often forgotten in many local codes, including aquatic buffers, erosion and sediment control, open space development, stormwater control operation and maintenance, illicit discharges, and post construction controls. There is also a miscellaneous category containing ordinances that don't fit into these sections. In addition, this web site has materials that support particular ordinances, such as maintenance agreements and inspection checklists. link
USEPA MyWaters Mapper USEPA EPA MyWATERS Mapper dynamically displays snapshots of EPA Office of Water program data. This version of MyWATERS Mapper depicts the status of NPDES permits for each State; summary information from the Clean Watershed Needs Survey; and water quality assessments. Future versions will include other Office of Water Program Snapshots. MyWATERS Mapper also contains water-related geographic themes such as 12-digit watersheds, the national stream network known as the National Hydrography Dataset, and other water-related map layers. MyWATERS Mapper enables you to create customized maps at national and local scales. link
USEPA National Aquatic Resource Survey (NARS) USEPA U.S. Environmental Protection Agency, states, and tribes are conducting a series of surveys of the nation's aquatic resources. Often referred to as probability-based surveys, these studies provide nationally consistent and scientifically-defensible assessments of our nation's waters and can be used to track changes in condition over time. Each survey uses standardized field and lab methods and is designed to yield unbiased estimates of the condition of the whole water resource being studied (i.e., rivers and streams, lakes, wetlands, or coastal waters). link
USEPA Nitrogen and Phosphorus Data Access Tool (NPDAT) USEPA As described in EPA's March 16, 2011 memorandum, "Working Effectively in Partnership with States to Address Phosphorus and Nitrogen Pollution through Use of a Framework for State Nutrient Reductions," (PDF) (6 pp, 346.6K) EPA will work collaboratively with interested and willing states, other partners, and stakeholders to help states develop effective statewide strategies for reducing loadings of nitrogen and phosphorus while they continue developing numeric criteria for these pollutants. The first elements in EPA's recommended framework are to: 1) prioritize watersheds on a statewide basis for nitrogen and phosphorus loading reductions and 2) set watershed load reduction goals based upon best available information. To support states, other partners, and stakeholders in this important work, EPA has developed this data access tool, providing downloadable data layers and key information on the following: ◦the extent and magnitude of nitrogen and phosphorus pollution in our Nation's waters; ◦water quality problems or potential problems related to this pollution; and ◦potential sources of these pollutants. Where available, the data layers in this data access tool are national in scope. In some cases, data sets are available only in the Mississippi/Atchafalaya River Basin (e.g., US Geological Survey (USGS) estimated loadings of nitrogen and phosphorus pollution) or for a smaller area or region. This data access tool and data layers represent the best information currently available, and by making these data layers viewable and downloadable through this data access tool, EPA does not draw any conclusions or make any recommendations or determinations as to sources of nitrogen or phosphorus to our Nation's waters. link
USEPA Nonpoint Source (NPS) Outreach Toolbox USEPA The Nonpoint Source (NPS) Outreach Toolbox is intended for use by state and local agencies and other organizations interested in educating the public on nonpoint source pollution or stormwater runoff. The Toolbox contains a variety of resources to help develop an effective and targeted outreach campaign. Includes targeted topics for general stormwater and storm drain awareness, lawn and garden care, pet care, septic system care, motor vehicle care, and household chemicals and waste. TV, radio, and print ads and other outreach products to increase awareness or change behaviors; Logos, slogans, and mascots; surveys and evaluations; and media campaigns. link
USEPA NPDAT - Active, Nutrient-Related Clean Water Act Section 319 Projects USEPA These EPA data provide information about the nutrient-related Clean Water Act Section 319 projects currently underway that have reported on load reductions for nutrients. Active projects do not include those that are marked as discontinued, never initiated, completed, or accepted by EPA. Nutrients include the following pollutants: algal growth/chlorophyll, ammonia, Biochemical Oxygen Demand (BOD), dissolved oxygen (low), nitrate, nitrogen, nutrients, phosphorus, sedimentation-siltation, suspended solids, Total Kjeldahl Nitrogen, and phosphate. link
USEPA NPDAT - Facilities Likely to Discharge Nitrogen/Phosphorus (N/P) to Water data layer USEPA A web-based data layer in EPA NPDAT Tool. This layer provides information on nitrogen and phosphorus discharges from 2010 facility monitoring reports with corresponding nitrogen and phosphorus limits from EPA's Discharge Monitoring Report (DMR) Pollutant Loading Tool link
USEPA NPDAT - National Aquatic Resource Survey (NARS) N/P Values USEPA These values, derived from EPA's NARS provide nitrogen and phosphorus pollutant levels statistically associated with degraded biological condition and may indicate the potential for biological community impacts at or near a monitoring site. Values for streams and for lakes to TN and TP. link
USEPA NPDAT - National Land Cover Dataset (NLCD) USEPA These USGS data (2006) provide a comprehensive look at land use. This layer provides states with an estimated breakdown of the percentage of distinct forms of developed (urban), crop and pastureland (agricultural), and forest lands, and will help states focus the right practices on the land in prioritized watersheds. link
USEPA NPDAT - National Pollutant Discharge Elimination System (NPDES) Concentrated Animal Feeding Operations (CAFO) Summary USEPA EPA data indicate locations of agricultural operations where animals are kept and raised in confined situations. CAFOs generally congregate animals, feed, manure and urine, dead animals, and production operations on a small land area. Feed is brought to the animals rather than the animals grazing or otherwise seeking feed in pastures, fields, or on rangeland. Animal waste and wastewater can enter waterbodies from spills or breaks of waste storage structures (due to accidents or excessive rain), and non-agricultural application of manure to crop land. link
USEPA NPDAT - SPARROW TN and TP Yields USEPA SPARROW (short for SPAtially Referenced Regressions On Watershed attributes) — This GIS-based watershed model integrates statistical and mechanistic modeling approaches to simulate long-term mean annual stream nutrient loads as a function of a wide range of known sources and climatic (precipitation, temperature), landscape (e.g., soils, geology), and aquatic factors affecting nutrient fate and transport. SPARROW TN and TP loadings (yields) for major basins, N incremental and P incremental 2002; and Mississippi Basin Incremental and Delivered Incremental for N and P for 1992. link
USEPA NPDAT - Water Quality Monitoring Sites with N/P (National Water Information System or NWIS) USEPA The U.S. Geological Survey's (USGS) National Water Information System (NWIS) is a comprehensive and distributed application that supports the acquisition, processing, and long-term storage of water data. NWISWeb serves as the publicly available portal to a geographically seamless set of much of the water data maintained within NWIS. link
USEPA NPDAT - Water Quality Monitoring Sites with Nitrogen/Phosphorus (N/P) (STORage and RETrieval database or STORET) USEPA EPA's STORET Data Warehouse is a repository that compiles and provides public access to water quality monitoring data. These data include water chemistry data, biological, and physical habitat data. The STORET Data Warehouse is used by state environmental agencies, EPA and other federal agencies, universities, private citizens, and many others for analysis. These organizations, including states, tribes, watershed groups, other federal agencies, volunteer groups and universities, submit data to the STORET Warehouse in order to make their data publicly accessible. link
USEPA NPDAT - Waters Listed for N/P Impairments layer USEPA These EPA data identify water-quality limited segments (i.e., waters that will not meet water quality standards for a particular pollutant even after a technology-based permit is in place). Section 303(d) nutrient-related impaired waters for which geospatial data are available can be displayed through the geospatial viewer. A one-time snapshot of all section 303(d) nutrient-related impaired waters, not just those for which geospatial data are available, for each state is also provided as a data download. For purposes of identifying nutrient-related impairments, EPA used the following national impairment categories: algal growth, ammonia, noxious aquatic plants, nutrients, organic enrichment/oxygen depletion. link
USEPA NPDAT - Waters with N/P TMDLs layer USEPA These EPA data include nutrient-related impaired waters for which a TMDL has been developed. Waters with TMDLs for nutrient-related impairments for which geospatial data are available can be displayed through the geospatial viewer. A one-time snapshot of all waters with TMDLs for nutrient-related impairments, not just those for which geospatial data are available, for each state is also provided as a data download. For purposes of identifying nutrient-related TMDLs, EPA used the following national impairment categories: algal growth, ammonia, noxious aquatic plants, nutrients, organic enrichment/oxygen depletion. link
USEPA N-STEPS (Nutrient Scientific Technical Exchange Partnership and Support) USEPA N-STEPS (Nutrient Scientific Technical Exchange Partnership and Support) provides direct support for nutrient criteria development. This site is a "One Stop Shop" for national, regional, and local nutrient criteria developments. The types of assistance available from N-STEPS include: •read questions and responses about the science of nutrient criteria development, as well as implementation questions, •see presentations by state nutrient experts and water quality managers, •participate in webcasts, •participate in nutrient related discussion boards, •view a bulletin board of recent nutrient happenings in other regions as well as at Headquarters, •and download factsheets and guidance documents on nutrient water quality criteria issues such as: ◦Nutrient-algal dynamics, ◦Sampling design for determining ecosystem specific nutrient algal dynamics, ◦Statistical analysis of data to assess nutrient-algal dynamics link
USEPA Nutrient Indicators Dataset USEPA EPA has developed the Nutrient Indicators Dataset. This Dataset consists of a set of indicators and associated state-level data to serve as a regional compendium of information pertaining to potential or documented nitrogen and phosphorus pollution, impacts of that pollution, and states’ efforts to minimize loadings and adopt numeric criteria for nutrients into state water quality standards. link
USEPA Nutrient Pollution Educational Materials Online USEPA The goal of this site is assist to state and local agencies, watershed groups, nongovernmental organizations and others in developing effective communications materials related to nutrient pollution. Nutrient pollution can cause human health problems, fish kills, and algal blooms. The U.S. Environmental Protection Agency (EPA) wants to enlist the help of local groups in sharing information with the media and the public about the growing threats to our nation’s water resources from nutrient pollution and ways that the public can help make a difference. Making this important environmental issue relevant to one’s community and explaining how it affects local water resources (like your local lake, river, reservoir, etc.) will be critical for success. link
USEPA Nutrient Pollution Policy and Data website (Nutrient microsite) USEPA EPA webpage with compilation of links related to nutrient policies, technical documentation (including criteria document), MRGOM Task Force ("HTF"), "what EPA is doing," states' progress in adopting numeric criteria, N&P Data Access Tool, CADDIS, Watershed/Modeling Support Center, Nutrient Indicators Dataset, Assessment/TMDL ("WATERS"), Reports and Research, Map of Nutrient Reduction Efforts (link currently not working), Additional Resources including Training link, and link to EPA's Nutrient Home page link
USEPA Protocol for Developing Nutrient TMDLs USEPA EPA protocol for developing nutrient TMDLs. link
USEPA Recovery Potential Screening Tool USEPA This website on Recovery Potential Screening provides a systematic approach for comparing waters or watersheds and identifying differences in how well they may respond to restoration. Originally, this approach was developed as a technical aid to states, territories and tribes (hereafter referred to as states for brevity) concerning their Clean Water Act obligation to "develop a prioritized schedule" for creating Total Maximum Daily Loads (TMDLs) to reduce pollution in impaired waters. Recovery Potential Screening can also be applied in a wide range of other watershed activities. Rather than a 'one-size-fits-all' procedure, this site offers a flexible framework of methods, tools, technical information and instructional examples that can be customized for any impaired waters restoration program in any geographic locality. When used with existing data, it provides a rapid assessment and comparison method at a general screening level. Key components for ecological indicator selection include: Candidate ecological indicators1.Watershed natural structure, 2.Corridor and shorelands stability, 3.Flow and channel dynamics, 4.Biotic community integrity, 5.Aquatic connectivity, 6.Ecological history. Key components for stressor indicator selection include: 1.Watershed-level disturbance, 2.Corridor or shorelands disturbance, 3.Hydrologic alteration, 4.Biotic or climatic risks, 5.Severity of pollutant loading 6.Legacy of past, trajectory of future land use. Key components for social context indicator selection include: 1.Leadership, organization and engagement, 2.Protective ownership or regulation, 3.Level of information, certainty and planning, 4.Restoration cost, difficulty, or complexity, 5.Socio-economic considerations, 6.Human health, beneficial uses, recognition and incentives link
USEPA Report "Getting In Step: A Guide for Conducting Watershed Outreach Campaigns". 2010. EPA 841-B-10-002 UESPA The purpose of this guide is to provide the tools you need to develop and implement an effective outreach campaign as part of a state or local water quality improvement effort. Whether you’re charged with developing a watershed management plan to restore impaired waters or protecting your local water resources for the future, this guide will help you understand the importance of reaching out to people and motivating them to act. It will help you understand the audiences in your watershed, create messages that resonate with them, find appropriate ways to communicate your message, and prompt changes in behavior to reduce water pollution. link
USEPA report "Getting in Step: Engaging and Involving Stakeholders in Your Watershed" USEPA A guide to help effectively engage stakeholders to restore and maintain healthy environmental conditions through community support and cooperative action. Focus on getting started, outreach and communication tools, building stakeholder group, keeping process moving forward, and follow-up after engagement period. List of resources also given. link
USEPA Report "Reactive Nitrogen in the United States: An Analysis of Inputs, Flows, Consequences and Management Options" 2011. A Report of the EPA Science Advisory Board (EPA-SAB-11-013) USEPA This original SAB study analyzes sources and fate of reactive nitrogen in the environment, and provides advice to the EPA on integrated nitrogen research and control strategies. Sources of Reactive Nitrogen: Nitrogen gas in the air is an abundant, inert form of nitrogen that is transformed by nitrogen-fixing microbes into reactive forms of nitrogen that are taken up by algae, plants and other producers at the base of the food web. Human activities (primarily production and use of nitrogen fertilizers, nitrogen-fixing legume crops, and burning of fossil fuels) introduce five times more reactive nitrogen into the U.S. environment than natural sources. Environmental Effects: The overload of reactive nitrogen causes a range of effects as it cycles in the atmosphere, on land, and in water bodies. This sequence of effects is called the “nitrogen cascade.” Reactive nitrogen provides essential benefits as a fertilizer for food production. However, most of this nitrogen is not taken up by crops and is lost to the environment where it can contribute to the impacts noted above. Nitrogen oxides from burning of fossil fuels for transportation and power generation contribute to formation of smog, particulate matter and acid rain, and then can go on to contribute to over-fertilization of unmanaged forests and grasslands, coastal eutrophication, greenhouse effect and stratospheric ozone depletion. Management Implications: The SAB recommends (1) the use of the nitrogen cycle as an essential framework to address the environmental loading of reactive nitrogen; (2) an integrated cross-media approach to more effectively manage reactive nitrogen; (3) and monitoring and research to support management of reactive nitrogen. The SAB suggests that a 25 percent reduction of excess reactive nitrogen can be achieved with existing technology in the near term. The SAB also emphasizes that this decrease alone will not solve the problems of excess reactive N in the environment. link
USEPA Source Water Protection Program USEPA Online resource for information on source water/drinking water protection. link
USEPA Surf Your Watershed USEPA EPA Surf Your Watershed gathers environmental information available by geographic units which includes state, watershed (Surf's primary focus), county, metro area, and tribe. The information below describes the Locate Your Watershed page which contains many different routes to the same information. Each of the geographic pages are also discussed briefly link
USEPA Urban BMP Performance Tool USEPA As of Jan 2008, EPA has created this web-based tool to provide stormwater professionals with easy access to approximately 220 studies assessing the performance of over 275 stormwater BMPs. The Tool provides access to studies covering a variety of traditional and low impact BMP types, including retention and detention ponds, biofilters, grassed filter strips, porous pavement, wetlands, and others. Users will also find a series of essays aimed at improving understanding of BMP performance and the importance of volume reduction/infiltration in these assessments. EPA plans to add more studies to this Tool over the coming year, focusing on expanding the collection of studies of low impact development or green infrastructure BMPs. However as of Nov 2012, could not access this tool through weblinks (deadlinks). link
USEPA Urban Guidance Document, Publication Number EPA 841-B-05-004, November 2005 USEPA This guidance helps citizens and municipalities in urban areas protect bodies of water from polluted runoff that can result from everyday activities. These scientifically sound techniques are the best practices known today. The guidance will also help states to implement their nonpoint source control programs and municipalities to implement their Phase II Storm Water Permit Programs. link
USEPA Watershed Planning USEPA EPA Watershed Planning site provides information on developing a watershed plan. Organizations, local governments, tribes, and state and federal agencies are now working together to manage water quality at the watershed level using a step-by-step watershed management process. This process uses a series of cooperative actions to: characterize existing conditions, identify and prioritize problems, define management objectives, develop protection or remediation strategies, and implement and adapt selected actions as necessary. link
USEPA. 2009. An Urgent Call to Action: Report of the State-EPA Nutrient Innovations Task Group USEPA The report presents a summary of scientific evidence and analysis that characterizes the scope and major sources of nutrient impacts nationally. The report also considers the tools currently used under existing federal authority and presents options for new, innovative tools to improve control of nutrient pollution sources. link
USEPA. 2012. Louisiana Tangipahoa River: Reducing Human and Animal Waste Discharge Restored Recreational Uses USEPA Waterbody Improved - Runoff from dairy farms carried animal waste into Louisiana’s Tangipahoa River, resulting in high bacteria counts and low dissolved oxygen concentrations. The Louisiana Department of Environmental Quality (LDEQ) listed the upper and lower reaches of the Tangipahoa River on the state’s 2000 Clean Water Act section 303(d) list of impaired waters for not meeting their designated uses of primary and secondary contact recreation. Twenty years of public outreach and strict enforcement significantly reduced fecal coliform counts, restoring the primary contact recreational use of both segments of the river and removing them from Louisiana’s 2008 303(d) impaired waters list for fecal coliform. link
USEPA’s Monitoring and Assessment Program USEPA The Environmental Monitoring and Assessment Program (EMAP) was a research program run by EPA’s Office of Research and Development to develop the tools necessary to monitor and assess the status and trends of national ecological resources. EMAP collected field data from 1990 to 2006. EMAP's goal was to develop the scientific understanding for translating environmental monitoring data from multiple spatial and temporal scales into assessments of current ecological condition and forecasts of future risks to our natural resources. link
USGS Cooperative Water Program USGS The Cooperative Water Program, the largest of the 28 USGS Bureau Programs, is the Water Mission Area’s “bottom-up, on-the-ground” program that is designed to bring local, State, and Tribal water science needs and decision-making together with USGS national capabilities related to USGS nationally consistent methods and quality assurance; innovative monitoring technology, models, and analysis tools; and robust data management and delivery systems. The Program provides the foundation for USGS strong and robust water monitoring networks (quantity and quality) and supports interpretative studies – about 700 annually – that cover a wide range of issues that are important to the USGS water mission and that inform local, State, and Tribal water decisions. The significant tie to local, State, and Tribal issues allows the Cooperative Water Program to respond to emerging water issues, raising those issues to regional and national visibility. Because data and analyses adhere to strict national protocols, findings are directly comparable across local, State, regional and national levels; water issues in a specific watershed, municipality, or State can be compared to those in other geographic regions and at different periods of time; and large-scale syntheses and problem-solving in different regions and across the Nation are possible. link
USGS EarthExplorer USGS A web-based visualization tool, looks to be very similar to USGS Global Visualization Viewer. GIS Imagery available for US, including Louisiana. Data collection types: aerial imagery, ASTER, EO-1, Landsat, Global Land Survey, MODIS, Terra. Data download available. Log in required to download data. link
USGS Global Visualization Viewer (GloVis) USGS The USGS Global Visualization Viewer is a quick and easy online search and order tool for selected satellite and aerial data. GIS Imagery available for US, including Louisiana. Data collection types: aerial imagery, ASTER, EO-1, Landsat, Global Land Survey, MODIS, Terra. Data download available. Looks similar to USGS Earth Explorer. link

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