This page uses extracted PDF text. Text can misread numbers, dates or table columns. Check the PDF before quoting or interpreting it. Redacted areas remain redacted.
Permit No. VA0088641
Page 22 of 42
2) “New Sources” means pervious and impervious urban land uses served by the MS4 developed or
redeveloped on or after July 1, 2009.
3) “Pollutants of concern” or “POC” means total nitrogen and total phosphorus.
b) Reduction Requirements – Existing Development: Following a phased approach, the permittee shall
reduce the load of total nitrogen and total phosphorous from existing sources within the MS4 service area
by at least 40% of the Level 2 Scoping Run reductions by June 30, 2026, and 100% of the reductions by
June 30, 2028. The 40% reduction is the sum of:
1) the first phase of reduction of 5.0% percent of the L2 Scoping Run Reductions based on the lands
located within the MS4 service area as required by June 30, 2018;
2) the second phase reduction of at least 35% of the L2 Scoping Run based on lands within the MS4
service area required by June 30, 2026; and
3) the reduction of at least 40% of the L2 Scoping Run which shall only apply to the additional lands that
were added to the MS4 service area since June 30, 2018, as required by June 30, 2026.
As part of this permit’s phased approach, the permittee shall reduce the load of total nitrogen and total
phosphorus from existing developed lands served by the MS4 by 100% of the Level 2 Scoping Run
Reductions by June 30, 2028. The required reduction shall be calculated using Table 1a for reductions by
June 30, 2026 and Table 1b for reductions by June 30, 2028 included herein.Jump to an indexed page (43 of 43)