In BWAM/stayCALM: Stay Calm when Applying a Consolidated Assessment Listing Methodology (CALM)

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CALM

The New York State Department of Environmental Conservation (NYSDEC) maintains a Consolidated Assessment and Listing Methodology (CALM) that describes the processes and procedures used to assess the quality of New York’s surface waters and determine the attainment status in each waterbody consistent with applicable water quality standards and guidance values. The following dichotomous key and Figure \@ref(fig:calm-tree) provide two ways of simplifying the assessment process outlined in the CALM. The assessments are used by New York state for management purposes and ultimately reported to the United State Environmental Protection Agency (USEPA) in the form of a 303d list.

• Dichotomous Key
  • 1a.) The following requirements are NOT met:
    • ELAP certified lab used for analytics (Not applicable until we consider external data sources)
    • Project has an approved QAPP (Not applicable until we consider external data sources)
    • < 10 years old (assessment_period(); within_assess_period == FALSE)
      • Requires manual review
  • 1b.) The above requirements are met (assessment_period(); within_assess_period == TRUE) [2]
  • 2a.) Does not meet the required minimum number of samples or minimum number of years for assessment. (assessment_min_req(); min_req_met == FALSE) [3]
  • 2b.) Meets the required minimum number of samples and minimum number of years for assessment. (assessment_min_req(); min_req_met == TRUE) [5]
  • 3a.) There is a Water Quality Standard violation
    • Classify as Impaired/Unconfirmed IR3
  • 3b.) There is no Water Quality Standard violation [4]
  • 4a.) >= 75% IQR of Water Quality Standard
    • Classify as Stressed/Unconfirmed IR3
  • 4b.) < 75% IWR of Water Quality Standard
    • Classify as Fully Supported/Unconfirmed IR3
  • 5a.) There is a Water Quality Standard violation [7]
  • 5b.) There is no Water Quality Standard violation [6]
  • 6a.) >= 75% IQR of Water Quality Standard
    • Classify as Stressed/Confirmed IR1
  • 6b.) < 75% IWR of Water Quality Standard
    • Classify as Fully Supported/Confirmed IR1
  • 7a.) >= 2 violations over >= 2 years [8]
  • 7b.) < 2 violations over >= 2 years
    • Classify as Impaired/Unconfirmed IR3
  • 8a.) A TMDL exists for the parameter
    • Classify as Impaired/Confirmed IR4
  • 8b.) A TMDL does not exist for the parameter [9]
  • 9a.) A Long Term Consent order or another restoration plan exists
    • Classify as Impaired/Confirmed IR4b
  • 9b.) A Long Term Consent order or another restoration plan do not exist [10]
  • 10a.) The parameter is considered a pollutant
    • Classify as Impaired/Confirmed IR4c
  • 10b.) The parameter is not considered a pollutant
    • Classify as Impaired/Confirmed IR5

knitr::include_graphics('images/calm_decision-tree.png', dpi = 180)

BWAM/stayCALM documentation built on May 21, 2020, 3:24 p.m.