9VAC25-40-40. Permit amendments.
Whenever the board determines that a permittee has the potential for discharging monthly average total phosphorus concentrations greater than or equal to 2.0 mg/l or monthly average total nitrogen concentrations greater than or equal to 10 mg/l to "nutrient enriched waters," the board may reopen the VPDES permit to impose monitoring requirements for nutrients in the discharge.
§ 62.1-44.15 of the Code of Virginia; § 303 of the federal Clean Water Act.
Derived from VR680-14-02 § 4, eff. May 25, 1988; amended, Virginia Register Volume 22, Issue 3, eff. November 16, 2005.