Article 22, § 175-22.7
Dimensional standards
Servicing
- Applies near
- Chesapeake Bay
- Geographic extent
- All lands within the Chesapeake Bay Preservation Area Overlay DistrictOverlay districtA second set of rules laid over the base district, adding requirements without replacing it. as shown on the Mathews County Chesapeake Bay Preservation Area Map, including Resource Protection Areas (RPA) and Resource Management Areas (RMA).
Extracted standards
11 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Landscaping & trees
- Minimum tree diameter for preservation6 in
Existing trees over six inches diameter at breast height (DBH) shall be preserved outside the construction footprint.
Other
- Buffer area width100 ft
A one-hundred-foot buffer area located adjacent to and landward of the components listed in Subsection B(1) through (3) above
- Major water quality impact assessment threshold5,000 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
Exceeds 5,000 square feet of land disturbance within the Overlay District
- Nutrient reduction requirement40 pct
and a forty-percent reduction of nutrients.
- Phosphorus loading limit0.45 lbs/acreacre43,560 square feet — about the size of an American football field without the end zones./yr
and the calculated average total phosphorus loading for Virginia's Chesapeake Bay Watershed, which is 0.45 pounds per acre per year.
- Plan of development threshold2,500 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
All development exceeding 2,500 square feet of land disturbance shall be subject to the plan of development review process
- Pre-development land cover percentage16 pct
based on the calculated average land cover condition for Virginia's Chesapeake Bay Watershed, which is 16%
- Redevelopment pollution reduction10 pct
Redevelopment of any site not served by water quality best management practices as of the effective date of this article shall achieve at least a ten-percent reduction of non-point source pollution
- Resource management area width150 ft
The RMA shall never be less than 150 feet in width landward of the inland boundary of the RPA.
- Seaward buffer no encroachment distance50 ft
The encroachment may not extend into the seaward 50 feet of the buffer area
- Sediment reduction requirement75 pct
The one-hundred-foot buffer area shall be deemed to achieve a seventy-five-percent reduction of sediments
From the ordinance
The Overlay District shall include all lands described in this section as lying within either the resource protection area (RPA) or the resource management area (RMA).