for wastewater and drinking water treatment works and facilities impacted by Hurricanes Harvey, Irma, and Maria: Provided further , That, for Region 2, such funds allocated from funds appropriated herein shall not be subject to the matching or cost share requirements of sections 602(b)(2), 602(b)(3) of the Federal Water Pollution Control Act nor the matching requirements of section 1452(e) of the Safe Drinking Water Act: Provided further , That, for Region 2, notwithstanding the requirements of section 603(i) of the Federal Water Pollution Control Act and section 1452(d) of the Safe Drinking Water Act, each State and Territory shall use the full amount of its capitalization grants allocated from funds appropriated herein to provide additional subsidization to eligible recipients in the form of forgiveness of principal, negative interest loans or grants or any combination of these: Provided further , That, for Regions 4 and 6, notwithstanding the requirements of section 603(i) of the Federal Water Pollution Control Act and section 1452(d) of the Safe Drinking Water Act, for the funds allocated, each State shall use not less than 20 percent but not more than 30 percent amount of its capitalization grants allocated from funds appropriated herein to provide additional subsidization to eligible recipients in the form of forgiveness of principal, negative interest loans or grants or any combination of these: Provided further , That the Administrator shall retain $74,600,000 of the funds appropriated herein for grants to any state or territory that has not established a water pollution control revolving fund pursuant to title VI of the Federal Water Pollution Control Act or section 1452 of the Safe Drinking Water Act for drinking water facilities and waste water treatment plants impacted by Hurricanes Irma and Maria: Provided further , That the funds appropriated herein shall only be used for eligible projects whose purpose is to reduce flood damage risk and vulnerability or to enhance resiliency to rapid hydrologic