Table - Criteria Progress
The table below shows a national summary of current EPA-approved numeric total nitrogen and total phosphorus criteria adoptions and those anticipated in the near future based on state-provided information. It also shows the status for related EPA-approved criteria such as chlorophyll-a. The information presented below is also presented as interactive maps under the Map - N/P Criteria Development and Map - Chlorophyll Criteria tabs.
Sort the table by clicking on any desired column. For example, you can sort by state, region, and expected level of progress. You can also show or hide columns by clicking on the checkboxes.
|Click to Show/Hide Table Columns|
|N/P Progress||Chlor-a||Related Parameters|
Number of Categories or Sites with Criteria
|Level 5||Complete set of N and P criteria for all watertypes|
|Level 4||2 or more watertypes with N and/or P criteria|
|Level 3||1 watertype with N and/or P criteria|
|Level 2||Some waters with N and/or P criteria|
|Level 1||No N and/or P criteria|
|Level C5||Complete set of chlorophyll-a criteria for all watertypes|
|Level C4||2 or more watertypes with chlorophyll-a criteria|
|Level C3||1 watertype with chlorophyll-a criteria|
|Level C2||Some waters with chlorophyll-a criteria|
|Level C1||No chlorophyll-a criteria|
Chlorophyll-a criteria balls are similar to the N/P ones. However, these are not halved.
|Partial criteria (Categorical criteria, site-specific criteria, etc.)|
|Watertype Not Applicable|