9 Va. Admin. Code § 25-401-50
The owners of the sewage treatment plants identified in 9VAC25-401-30 A shall develop and implement an instream monitoring program. The purpose of the monitoring program shall be to assess any impacts the discharge may have on down stream water quality and the water quality at the Fairfax County Water Authority's intake in the Potomac River. The owners of the sewage treatment plants shall consult with the Fairfax County Water Authority in developing the monitoring program.
§ 62.1-44.15 of the Code of Virginia.
Derived from Virginia Register Volume 20, Issue 25, eff. September 22, 2004.