Assessment
This assessment category means a waterbody attains some designated uses and is not impaired.
What is Category 2 (Not Impaired)?
The minimum number of temporally independent samples required to assess most parameters.
What is five?
This parameter is used as a response variable for nutrient criteria in lakes and estuaries.
What is Chlorophyll-a?
This bacteria parameter replaced fecal coliform as a primary indicator in freshwaters.
What is Escherichia coli (E. coli)?
This type of plan provides reasonable assurance that an impairment will be addressed, allowing a waterbody to be placed in Category 4b.
What is a Reasonable Assurance Plan (RAP)?
A waterbody with insufficient data to determine attainment is placed in this category.
What is Category 3b?
For a dataset with fewer than 20 samples, this is the maximum number of temporally independent exceedances allowed for a Not Impaired assessment.
What is fewer than three?
To delist a nutrient impairment, a waterbody must have this many consecutive years below the criterion.
What is three consecutive years?
A waterbody with significant exceedances and an LDI greater than 4 is placed in this category for bacteria.
What is Category 5 (Impaired)?
A waterbody can be delisted from the Verified List for bacteria if this criterion is met for five consecutive years.
What is fewer than 21 days of advisories per year?
300 This category is used for impaired waters where a TMDL is required.
What is Category 5?
This term refers to samples collected at least four days apart.
What is temporally independent?
In streams, these two floral measurements are required to support a Not Impaired assessment for TN or TP.
What are RPS and LVS?
This chemical tracer, found in both untreated and treated wastewater, should not be the sole evidence for impairment.
What is Sucralose?
This category is used for waters that are not impaired due to ongoing restoration activities.
What is Category 2e?
If a waterbody is impaired but no TMDL will be developed because the impairment is not caused by a pollutant, it is placed here.
What is Category 4c (Natural Condition)?
If a waterbody has 0 samples for a parameter in the planning period, it is placed in this category.
What is Category 3a (No Data)?
This organization solely shall not be used to impair any waterbody in the Verified Period.
Who is Lakewatch?
The presence of this genetic marker can support a human source of bacteria impairment, but is not unique to humans.
What is HF183-qPCR?
To move a waterbody from Category 4e to 2e, this must be confirmed about the data improvements.
What is that improvements are tied to restoration projects?
This category is for waters that are impaired, but restoration activities are underway and should restore designated uses.
What is Category 4e?
For nutrient AGMs, this is the minimum number of years required to assess long-term averages.
What is three years?
A statistically significant increasing trend in nutrient AGMs at the 95% confidence level can place a waterbody on this list.
What is the Planning List (Category 3c)?
For beach advisories, a waterbody is placed on the Verified List if advisories total this many days in a calendar year during the verified period.
What is 21 days?
This is the minimum number of new consecutive passing bioassessments required to remove a biology impairment from the Verified List.
What is two?