LOUISIANA DEPARTMENT OF ENVIRONMENTAL QUALITY | Secretary Aurelia S. Giacometto
A DEPARTMENT OF THE STATE OF LOUISIANA
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.
Steady-state one-dimensional in-stream model. Model can be used to simulate nutrients.
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.
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.
A training class for sanitary wastewater compliance assistance.
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.
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).