Wis. Admin. Code Department of Natural Resources NR 106.82

Current through November 25, 2024
Section NR 106.82 - Definitions
(1) "Calculated limitation" means a chloride water quality-based effluent limitation.
(2) "Consistently meet" means that 95% of the representative effluent data are less than the calculated limitation.
(3) "DIR" means demand initiated regeneration.
(4) "Daily maximum interim limitation" means an effluent limitation calculated by the department which may be either:
(a) The upper 99th percentile of the permittee's representative data available to the department, or
(b) A value no greater than 105% of the permittee's highest representative effluent datum.
(5) "Reasonably meet" means that all of the permittee's representative effluent data would, using appropriate statistical techniques, be expected to be less than or equal to the target limitation following the completion of all of the source reduction efforts required by the permit.
(6) "Representative effluent data" means data, above the level of detection, which is not serially correlated and which represents normally expected effluent concentrations of chloride, collected during a period that can represent current or expected operations, or both, within the term of the permit.
(7) "Target limitation" means an effluent limitation which the permittee can reasonably meet within the term of the permit, following implementation of appropriate voluntary source reduction activities.
(8) "Target value" means an effluent concentration of chlorides which a permittee may be expected to reasonably meet following implementation of appropriate voluntary source reduction activities. A target value is not an enforceable limitation under the terms of the permit program, but establishes a measure of progress of source reduction activities.
(9) "Weekly average interim limitation" means an effluent limitation calculated by the department which may be either:
(a) The upper 99th percentile of the permittee's 4-day average of the representative data available to the department, or
(b) A value no greater than 105% of the permittee's calculated highest weekly average of the representative effluent data.
(10) WPDES" means Wisconsin pollutant discharge elimination system.

Wis. Admin. Code Department of Natural Resources NR 106.82

Cr. Register, January, 2000, No. 529, eff. 2-1-00.