New York Codes, Rules and Regulations
Title 6 - DEPARTMENT OF ENVIRONMENTAL CONSERVATION
Chapter X - DIVISION OF WATER RESOURCES
Subchapter A - GENERAL
Article 2 - CLASSIFICATIONS AND STANDARDS OF QUALITY AND PURITY
Part 702 - Derivation and use of Standards and Guidance Values
Section 702.12 - Procedures for deriving standards and guidance values for protection of recreation

(a) Protection of the best usage of recreation shall include standards and guidance values to protect the quality of the water for primary and secondary contact recreation, including aesthetic conditions. Such values are referred to as recreation values and derived based on an evaluation of reported levels of the pollutant (such as pathogens or pathogen indicators, nutrients or vegetation) that affect the quality of the water and its suitability for primary and secondary contact recreation.