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Mathews County Unincorporated
City Zoning Code

ARTICLE 22

Chesapeake Bay Preservation Area Overlay District

§ 175-22.1 Findings of fact.

A. 
The Chesapeake Bay and its tributaries are one of the most important and productive estuarine systems in the world, providing economic and social benefits to the citizens of Mathews County and the Commonwealth of Virginia. The health of the Bay is vital to maintaining Mathews County's economy and the welfare of its citizens. Healthy state and local economies and a healthy Chesapeake Bay are integrally related, and balanced economic development and water quality protection are beneficial to the County and are not mutually exclusive.
B. 
The Chesapeake Bay's waters, as well as the Piankatank, North and East Rivers, and Mobjack Bay, have been degraded significantly by many sources of pollution, including non-point source pollution from land uses and development. Existing high quality waters are worthy of protection from degradation to guard against further pollution. Certain lands that are proximate to shorelines have intrinsic water quality value due to the ecological and biological processes they perform. Other lands have severe development constraints from flooding, erosion, and soil limitations. With proper management, they offer significant ecological benefits by providing water quality maintenance and pollution control, as well as flood and shoreline erosion control. These lands together, designated by the Board of Supervisors of Mathews County as the Chesapeake Bay Preservation Area Overlay District, need to be protected from destruction and damage in order to protect the quality of water in the Bay and, consequently, the quality of life in Mathews County and the Commonwealth of Virginia.

§ 175-22.2 Purpose and intent.

The purpose of The Chesapeake Bay Preservation Area Overlay District (the "Overlay District") is to implement the requirements of the Chesapeake Bay Preservation Act ("the Act"), §§ 10.1-2100 and 15.2-2283, et seq., Code of Virginia,[1] and its implementing regulations, 9VAC 10-20 et seq., and to provide for the preservation of lands of significance for the protection of the natural environment and to protect in a manner consistent with applicable state water quality standards, surface water and groundwater as defined in Section 62.1-255, Code of Virginia, and is intended to:
A. 
Protect existing high quality state waters;
B. 
Restore all other state waters to a condition or quality that will permit all reasonable public uses and will support the propagation and growth of all aquatic life, including game fish, which might reasonably be expected to inhabit them;
C. 
Safeguard the clean waters of the commonwealth from pollution;
D. 
Prevent any increase in pollution;
E. 
Reduce existing pollution; and
F. 
Promote water resource conservation in order to provide for the health, safety, and welfare of the present and future citizens of Mathews County and the Commonwealth of Virginia.
[1]
Editor's Note: Section 10.1-2100 of the Code of Virginia was repealed by Acts 2013, cc. 756 and 793, cl. 2.

§ 175-22.3 Authority.

This Article is enacted pursuant to the authority of Section 10.1-2100, et seq. ("the Act") and § 15.2-2283, Code of Virginia.

§ 175-22.4 Application of district.

The Overlay District shall be in addition to and shall overlay all other zoning districts established by this chapter and shown on the Official Zoning Map, which other districts shall be known as underlying districts. Every parcel of land lying within the Overlay District shall also lie within one or more of the underlying districts established by this chapter.

§ 175-22.5 Definitions.

The words and terms used in this article shall be given the meanings set forth in Article 2 of this chapter with the following additions. The words and terms, whether defined in Article 2 or in Article 22, shall be interpreted as having such meaning as set forth, unless a specific meaning to the contrary is indicated elsewhere in this chapter. Words and terms not defined in Article 2 or in this Article 22 shall be interpreted in accordance with such normal dictionary meaning or customary usage as is appropriate to the context.
AGRICULTURAL LANDS
Those lands used for the planting and harvesting of crops or plant growth of any kind in the open, pasture, horticulture, dairying, floriculture, or raising of poultry and/or livestock.
BEST MANAGEMENT PRACTICES OR BMPs
A practice, or a combination of practices, that is determined by a state or designated area-wide planning agency to be the most effective, practical means of preventing or reducing the amount of pollution generated by non-point sources to a level compatible with water quality goals.
BUFFER AREA
An area of natural or established vegetation managed to protect other components of a resource protection area and state waters from significant degradation due to land disturbances.
CHESAPEAKE BAY PRESERVATION AREA OR CBPA
Any land designated by the Board of Supervisors of Mathews County pursuant to Part III of the Chesapeake Bay Preservation Area Designation and Management Regulations, 9VAC10-20 et seq., and Section 10.1-2107 of the Code of Virginia, as amended.[1] A Chesapeake Bay Preservation Area shall consist of a resource protection area and resource management area.
CONSTRUCTION FOOTPRINT
The area of all impervious surface, including but not limited to buildings, roads and drives, parking areas and sidewalks and the area necessary for construction of such improvements.
DEVELOPMENT
The construction, or substantial alteration, of residential, commercial, industrial, institutional, recreational, transportation, or utility facilities or structures or other uses or structures.
DIAMETER AT BREAST HEIGHT OR DBH
The diameter of a tree measured outside the bark at a point 4.5 feet above ground.
DRIP LINE
A vertical projection to the ground surface from the furthest lateral extent of a tree's leafy canopy.
FLOODPLAIN
All lands that would be inundated by flood water as a result of a storm event of a one-hundred-year return interval.
HIGHLY ERODIBLE SOILS
Soils (excluding vegetation) with an erodibility index (El) from sheet and rill erosion equal to or greater than eight. The erodibility index for any soil is defined as the product of the formula RKLS/T, where K is the soil susceptibility to water erosion in the surface layer; R is the rainfall and runoff; LS is the combined effects of slope length and steepness; and T is the soil loss tolerance.
HIGHLY PERMEABLE SOILS
Soils with a given potential to transmit water through the soil profile. Highly permeable soils are identified as any soil having a permeability equal to or greater than six inches of water movement per hour in any part of the soil profile to a depth of 72 inches (permeability groups "rapid" and "very rapid") as found in the National Soils Survey Handbook of November 1996 in the Field Office Technical Guide of the U.S. Department of Agriculture Soil Conservation Service.
IMPERVIOUS COVER
A surface composed of any material that significantly impedes or prevents natural infiltration of water into soil. Impervious surfaces include, but are not limited to, roofs, buildings, streets, parking areas, and any concrete, asphalt, or compacted gravel surface.
LAND
In addition to the definition contained in Article 2, shall include the terms "water" and "marsh."
NON-POINT SOURCE POLLUTION
Pollution consisting of constituents such as sediment, nutrients, and organic and toxic substances from diffuse sources, such as runoff from agriculture and urban land development and use.
NON-TIDAL WETLANDS
Those wetlands other than tidal wetlands that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions, as defined by the U.S. Environmental Protection Agency pursuant to Section 404 of the Federal Clean Water Act, in 33 CFR 328.3(b).
NOXIOUS WEEDS
Weeds that are difficult to control effectively, such as Johnson Grass, Kudzu and multiflora rose.
PLAN OF DEVELOPMENT
The process for site plan or subdivision plat review and including other related plans and studies described in Division IV of this article to ensure compliance with Section 10.1-2109 of the Code of Virginia and this article, prior to any clearing or grading of a site or the issuance of a building permit.
PUBLIC ROAD
A publicly owned road designed and constructed in accordance with water quality protection criteria at least as stringent as requirements applicable to the Virginia Department of Transportation, including regulations promulgated pursuant to (i) The Erosion and Sediment Control Law (§ 10.1-560 et seq. of the Code of Virginia) and (ii) the Virginia Stormwater Management Act (Section 10.1-603.1 et seq. of the Code of Virginia). This definition includes those roads where the Virginia Department of Transportation exercises direct supervision over the design or construction activities, or both, and cases where secondary roads are constructed or maintained, or both, by Mathews County in accordance with the County standards.
REDEVELOPMENT
The process of developing land that is or has been previously developed.
RESOURCE MANAGEMENT AREA OR RMA
That component of the Chesapeake Bay Preservation Area that is not classified as the resource protection area. RMAs include land types that, if improperly used or developed, have the potential for causing significant water quality degradation or for diminishing the functional value of the resource protection area.
RESOURCE PROTECTION AREA OR RPA
That component of the Chesapeake Bay Preservation Area comprised of lands adjacent to water bodies with perennial flow that have an intrinsic water quality value due to the ecological and biological processes they perform or are sensitive to impacts which may result in significant degradation to the quality of state waters.
SILVICULTURAL ACTIVITIES
Forest management activities, including but not limited to the harvesting of timber, the construction of roads and trails for forest management purposes, and the preparation of property for reforestation that are conducted in accordance with the silvicultural best management practices developed and enforced by the State Forester pursuant to § 10.1-1105 of the Code of Virginia and are located on property defined as real estate devoted to forest use under § 58.1-3230 of the Code of Virginia.
TIDAL SHORE OR SHORE
Land contiguous to a tidal body of water between the mean low water level and the mean high water level.
TIDAL WETLANDS
Vegetated and nonvegetated wetlands as defined in § 28.2-1300 of the Code of Virginia.
VARIANCE
In the application of this chapter, a reasonable deviation from those provisions regulating the size or area of a lot or parcel of land, or the size, area, bulk or location of a building or structure when the strict application of the ordinance would result in unnecessary or unreasonable hardship to the property owner, and such need for a variance would not be shared generally by other properties, and provided such variance is not contrary to the intended spirit and purpose of this chapter, and would result in substantial justice being done. It shall not include a change in use, which shall be accomplished by a rezoning or a conditional zoning.
WATER BODY WITH PERENNIAL FLOW
A body of water that flows in a natural or manmade channel year-round during a year of normal precipitation. This includes, but is not limited to, streams, estuaries, and tidal embayments and may include drainage ditches or channels constructed in wetlands or from former natural drainageways, which convey perennial flow. Lakes and ponds, through which a perennial stream flows, are a part of the perennial stream. Generally, the water table is located above the streambed for most of the year and groundwater is the primary source for stream flow.
WATER-DEPENDENT FACILITY
A development of land that cannot exist outside of the resource protection area and must be located on the shoreline by reason of the intrinsic nature of its operation. These facilities include, but are not limited to:
A. 
Ports;
B. 
The intake and outfall structures of power plants, water treatment plants, sewage treatment plants, and storm sewers;
C. 
Marinas and other boat docking structures;
D. 
Beaches and other public water-oriented recreation areas; and
E. 
Fisheries or other marine resources facilities.
[1]
Editor's Note: Section 10.1-2107 of the Code of Virginia was repealed by Acts 2013, cc. 756 and 793, cl. 2.

§ 175-22.6 Conflict with other regulations.

A. 
Unless otherwise stated in this article or specifically modified by the requirements of this article, the permitted uses, conditional use, area, bulk, yard, height and other regulations and requirements, including the review and approval processes, applicable within the underlying district(s) and set forth elsewhere in this chapter or in other ordinances of Mathews County shall be applicable to all development, redevelopment and use of land or structures in the Overlay District, provided that sufficient lot area, lot width, setbacks, yards and other spaces shall be provided to enable compliance with all of the requirements of this article.
B. 
In any case where the requirements of this article conflict with any other provision of this chapter or other applicable regulation or requirement, whichever imposes the more stringent restrictions shall apply.

§ 175-22.7 Designation of Chesapeake Bay Preservation Area Overlay District.

A. 
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). The Overlay District and its RPA and RMA components are delineated on the map entitled "Mathews County Chesapeake Bay Preservation Area Map" dated September 7, 1993, and which is hereby adopted by reference and declared to be part of this article. As noted in § 175-22.8, the actual boundaries of a resource protection area shall be determined on a case-by-case basis.
B. 
The resource protection area shall consist of the following components:
(1) 
Tidal shores;
(2) 
Tidal wetlands;
(3) 
Nontidal wetlands connected by surface flow and contiguous to tidal wetlands or water bodies with perennial flow; and
(4) 
A one-hundred-foot buffer area located adjacent to and landward of the components listed in Subsection B(1) through (3) above, and along both sides of any water body with perennial flow.
C. 
The resource management area shown on the Chesapeake Bay Preservation Area Map includes the land types listed below and certain land areas entirely surrounded by such land types which, if improperly used or developed, have a potential for causing significant water quality degradation or for diminishing the functional value of the resource protection area. The listed land types are included within the RMA to the extent they lie contiguous to the inland boundary of the resource protection area:
(1) 
One-hundred-year floodplains;
(2) 
Highly erodible soils, including steep slopes;
(3) 
Highly permeable soils; and
(4) 
Nontidal wetlands not included in the RPA.
D. 
For purposes of delineating the boundaries of the RMA, land areas consisting of less than five acres entirely surrounded by any of the land types identified in Subsection C above are shown on the Chesapeake Bay Preservation Area Map as lying within the RMA. In any case where it can be shown to the satisfaction of the Administrator in accordance with provisions of §§ 175-22.36 and 22.37 of this article that any such land area does not contain any of the land types identified in Subsection C above, the Administrator shall exempt such land area from the requirements of this article.
E. 
On lands where none of the land types listed in Subsection C of this section lie contiguous to the inland boundary of the RPA, or where those land types are less than a total of 150 feet in width, the RMA shall consist of an area 150 feet in width located contiguous to and landward of the RPA. The RMA shall never be less than 150 feet in width landward of the inland boundary of the RPA.

§ 175-22.8 Interpretation of resource protection area boundaries.

A. 
The boundaries of the RPA shown on the Mathews County Chesapeake Bay Preservation Area Map shall be construed as approximate due to the scale of such map and the nature of the information used in establishing such boundaries. The boundaries of the RPA shall be interpreted on a site-specific basis based on the submission of a water quality impact assessment as required under § 175-22.10K or through the review of an environmental site assessment as required in § 175-22.8D below.
B. 
The Mathews County Chesapeake Bay Preservation Area Map should be consulted by persons contemplating development activity prior to seeking necessary permits for such activities or engaging in an activity regulated by the provisions of this article.
C. 
The applicant shall be required to submit an environmental site assessment as provided in §§ 175-22.36 through 175-22.38 of this article. The environmental site assessment shall, subject to review and approval by the Administrator and any adjustment deemed necessary by the Administrator, be the basis for interpreting the boundary of the RPA.
D. 
When the applicant provides site-specific information identifying the boundary of the RPA, the Administrator shall review and verify the accuracy of such information, and shall render a final interpretation in accordance with the criteria set forth by the provisions of this article. In the event the final interpretation by the Administrator is contested by the applicant or by any other party who has a legal standing to do so, the decision of the Administrator may be appealed to the Board of Zoning Appeals pursuant to the applicable provisions of Article 19 of this chapter.

§ 175-22.9 Purposes of performance criteria.

A. 
The performance criteria set forth in §§ 115-22.10 through 115-22.17 of this article are intended to establish the means to minimize erosion and sedimentation potential, reduce land application of nutrients and toxics, and maximize rainwater infiltration. Natural ground cover, especially woody vegetation, is most effective in holding soil in place and preventing site erosion. Indigenous vegetation, with its adaptability to local conditions without the use of harmful fertilizers or pesticides, filters stormwater runoff. Minimizing impervious cover enhances rainwater infiltration and effectively reduces stormwater runoff potential.
B. 
The purposes of the performance criteria are to implement the following objectives: prevent a net increase in non-point source pollution from new development; achieve a ten-percent reduction in non-point source pollution from redevelopment; and achieve a forty-percent reduction in non-point source pollution from agricultural activities.

§ 175-22.10 General performance criteria.

Any use, development or redevelopment of land within the Overlay District shall meet the following performance criteria.
A. 
No more land shall be disturbed than is necessary to provide for the proposed use or development.
(1) 
In accordance with an approved site plan, the limits of land disturbance, including clearing and grading, shall be strictly defined by the construction foot-print. These limits shall be clearly shown on the submitted site plan and shall be physically marked on the development site. The administrator shall review and approve the construction footprint through the plan of development process. The construction footprint shall not exceed the limits for such as designated by the zoning district of the lot or parcel.
(2) 
Ingress and egress during construction shall be limited to one access point, unless otherwise authorized by the Administrator in conjunction with the approved site plan.
B. 
Indigenous vegetation shall be preserved to the maximum extent practicable consistent with the use or development proposed.
(1) 
Existing trees over six inches diameter at breast height (DBH) shall be preserved outside the construction footprint. Diseased trees or trees weakened by age, storm, fire or other injury may be removed.
(2) 
Clearing shall be permitted only to provide necessary access, positive drainage, water quality, best management practices and the installation of utilities, as approved by the Administrator.
(3) 
Prior to clearing or grading, suitable protective barriers, such as safety fencing, shall be erected at or outside the drip line of any tree or stand of trees to be preserved. These protective barriers shall remain in place throughout all phases of construction. The storage of equipment, materials, debris or fill shall not be allowed within the area protected by such barriers.
C. 
Where the best management practices utilized require regular or periodic maintenance in order to continue their functions, such maintenance shall be ensured through a maintenance agreement with the owner or developer, or some other mechanism approved by the County Attorney that achieves an equivalent objective.
D. 
All development exceeding 2,500 square feet of land disturbance shall be subject to the plan of development review process as set forth in Division IV of this article.
E. 
Land development shall minimize impervious cover consistent with the proposed use or development in order to promote infiltration of stormwater into the ground.
(1) 
Parking areas and driveways shall be designed and improved so as to minimize impervious cover and, wherever possible based on the nature and volume of vehicular traffic, grid and modular paving blocks which promote infiltration of stormwater shall be used in parking areas and driveways.
(2) 
In order to minimize impervious cover, the dimensions of parking spaces and width of driveways and access aisles shall be no greater than necessary to comply with the requirements of this chapter and to provide for safe and convenient vehicular movement.
F. 
Any land-disturbing activity that exceeds an area of 2,500 square feet (including, but not limited to, construction of all single-family dwellings, septic tanks and drainfields) shall comply with the requirements of the Erosion and Sediment Control Ordinance for Mathews County.[1]
[1]
Editor's Note: See Ch. 50, Erosion and Sediment Control.
G. 
All on-site sewage disposal systems not requiring a Virginia Pollutant Discharge Elimination System (VPDES) permit shall:
(1) 
Have pump-out accomplished for all such systems at least once every five years.
(2) 
If deemed appropriate by the local health department and subject to conditions the local health department may set, as an alternative to the mandatory pumpout, the option of having a plastic filter installed and maintained in the outflow pipe from the septic tank to filter solid material from the effluent while sustaining adequate flow to the drainfield to permit normal use of the septic system. Such a filter should satisfy standards established in the Sewage Handling and Disposal Regulations (12 VAC 5-610) administered by the Virginia Department of Health.
(3) 
In lieu of requiring proof of septic tank pump-out every five years, owners of on-site sewage treatment systems to submit documentation every five years, certified by sewage handler permitted by the Virginia Department of Health, that the septic system has been inspected, is functioning properly, and the tank does not need to have the effluent pumped out of it.
H. 
For new construction, a reserve sewage disposal site with a capacity at least equal to that of the primary sewage disposal site shall be provided and must meet the approval of the Sanitarian employed by the State Health Department assigned to Mathews County. This requirement shall not apply to any lot or parcel recorded prior to October 1, 1989, nor shall it apply to any lot or parcel on which construction has been lawfully commenced and a sewage disposal permit has been issued prior to the effective date of Article 22 of this chapter, if such lot or parcel is not sufficient in capacity to accommodate a reserve sewage disposal site, as determined by the Sanitarian. Building or construction of any impervious surface shall be prohibited on the area utilized by, or reserved for, sewage disposal sites until such time as the structure is served by public sewer or an onsite sewage treatment system which operates under a VPDES permit. All sewage disposal site records shall be administered to provide adequate notice and enforcement of this provision.
I. 
For any use or development, stormwater runoff shall be controlled by the use of best management practices consistent with the water quality protection provisions of the Virginia Stormwater Management Regulations (4 VAC 3-20-10 et seq.). Stormwater management criteria which satisfy the following requirements shall apply.
(1) 
For development, the post-development non-point source pollution runoff load shall not exceed the pre-development load based on the calculated average land cover condition for Virginia's Chesapeake Bay Watershed, which is 16%, and the calculated average total phosphorus loading for Virginia's Chesapeake Bay Watershed, which is 0.45 pounds per acre per year.
(2) 
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 in runoff compared to the existing runoff load from the site.
(3) 
Post-development runoff from any site to be redeveloped that is served by water quality best management practices as of the date of proposed redevelopment, shall not exceed the existing load of non-point source pollution in surface runoff, provided that:
(a) 
Runoff pollutant loads must have been calculated and the best management practices employed for the expressed purpose of controlling non-point source pollution.
(b) 
If best management practices are structural, evidence shall be provided that such facilities are currently in good working order and performing at the design levels of service. The Administrator may require a review of both the original structural design and maintenance plans to verify compliance with these provisions, and a new maintenance agreement may be required to ensure compliance.
(4) 
For any redevelopment, both the pre-development and post-development pollutant loads shall be calculated by similar procedures. Where the design data is available, the original post-development non-point source pollution loads may be substituted for the existing development loads.
(5) 
Any maintenance, alteration, use, or improvement to an existing structure, which does not degrade the quality of surface water discharge, as determined by the Administrator in accordance with applicable procedures and requirements of this article, may be exempted from the requirements of this Subsection I.
J. 
Land upon which agricultural activities are being conducted, including but not limited to crop production, pasture, and dairy and feed lot operations, or lands otherwise defined as agricultural land by the local government, shall have a soil and water quality assessment. Such assessments shall evaluate the effectiveness of existing practices pertaining to soil erosion and sediment control, nutrient management and management of pesticides, and where necessary, results in a plan that outlines additional practices needed to ensure that water quality protection is accomplished consistent with this article.
K. 
A water quality impact assessment shall be required in accordance with the provisions of §§ 175-22.18 through 175-22.21 of this article for any proposed land disturbance, development or redevelopment within the RPA, and for any proposed development within the RMA when required by the Administrator after determination by the Administrator that the development warrants such assessment due to the unique characteristics of the site or the intensity of the proposed development and that such assessment is necessary to determine consistency with the goals and objectives of the Act, the regulations promulgated thereunder and this chapter.
L. 
Prior to initiating grading or other on-site activities on any portion of a lot or parcel, all wetlands permits required by federal, state, and local laws and regulations or ordinances shall be obtained and evidence of such submitted to the Administrator.

§ 175-22.11 Performance criteria for RPA.

A. 
The following criteria shall be applicable to all development within the resource protection area and shall supplement the general performance criteria set forth in § 175-22.10 of this article.
B. 
Development within the RPA shall be permitted only if it is water-dependent, constitutes redevelopment; or is a road or driveway crossing satisfying the conditions set forth below in Subsection B(2); or is flood control and stormwater management facility satisfying the conditions set forth in Subsection B(3).
(1) 
A new water dependent facility or expansion of an existing water dependent facility shall be permitted within the RPA only when the following conditions are met:
(a) 
It does not conflict with the comprehensive plan;
(b) 
Such facility complies with the performance criteria set forth in § 175-22.10 of this article and the buffer area criteria set forth in §§ 175-22.12 through 175-22.15 of this article, provided that any proposed encroachment into the one-hundred-foot buffer area shall be the minimum necessary to accommodate the use and shall be authorized only pursuant to and in accordance with the findings of a water quality impact assessment as required by the provisions of Division III of this article;
(c) 
Any non-water-dependent component of such facility is located outside the RPA; and
(d) 
Access to such facility shall be provided with the minimum land disturbance necessary and, where practicable, a single point of access shall be provided.
(2) 
Roads and driveways not exempt under § 175-22.47 and which, therefore, must comply with the provisions of this article, may be constructed in or across RPAs if each of the following conditions are met:
(a) 
The Administrator makes a finding that there are no reasonable alternatives to aligning the road or drive in or across the RPA;
(b) 
The alignment and design of the road or driveway are optimized, consistent with other applicable requirements, to minimize encroachment in the RPA and minimize adverse effects on water quality;
(c) 
The design and construction of the road or driveway satisfy all applicable criteria of this article, including submission of a water quality impact assessment; and
(d) 
The Administrator reviews the plan for the road or driveway proposed in or across the RPA in coordination with the plan of development requirements as required under Division IV or subdivision plan.
(3) 
Redevelopment within the RPA shall be permitted only if there is no increase in the amount of impervious cover and no further encroachment within the RPA and it shall conform to applicable stormwater management and erosion and sediment control criteria set forth in this article and the Erosion and Sediment Control Ordinance of Mathews County.[1]
[1]
Editor's Note: See Ch. 50, Erosion and Sediment Control.
(4) 
A water quality impact assessment shall be required for any land disturbance, development or redevelopment as set forth in §§ 175-22.18 through 175-22.21, inclusive, of this article.

§ 175-22.12 Buffer area requirements: purpose.

To minimize the adverse effects of human activities on the other components of the RPA, state waters and aquatic life, a one-hundred-foot buffer area of vegetation that is effective in retarding runoff, preventing erosion, and filtering non-point source pollution from runoff shall be retained if present and established where it does not exist.

§ 175-22.13 Buffer area delineation.

The buffer area shall be located adjacent to and landward of other RPA components and along both sides of any water bodies with perennial flow. The full buffer area shall be designated as the landward component of the RPA.

§ 175-22.14 Buffer area width and performance standards.

The one-hundred-foot buffer area shall be deemed to achieve a seventy-five-percent reduction of sediments and a forty-percent reduction of nutrients.

§ 175-22.15 Buffer area supplemental performance standards.

In order to maintain the functional value of the buffer area, indigenous vegetation may be removed, subject to approval by the Administrator, only to provide for reasonable sight lines, access paths, general woodlot management, and best management practices, including those that prevent upland erosion and concentrated flows of stormwater as follows:
A. 
Trees may be pruned or removed as necessary to provide site lines and vistas, provided that where removed, they shall be replaced with other vegetation that is equally effective in retarding runoff, preventing erosion, and filtering non-point source pollution from runoff.
B. 
Any path shall be constructed and surfaced so as to effectively control erosion.
C. 
Dead, diseased, or dying trees or shrubbery and noxious weeds (such as Johnson grass, kudzu, and multiflora rose) may be removed and thinning of trees may be allowed, pursuant to sound horticultural practice incorporated into locally-adopted standards.
D. 
For shoreline erosion control projects, trees and woody vegetation may be removed, necessary control techniques employed, and appropriate vegetation established to protect or stabilize the shoreline in accordance with the best available technical advice and applicable permit conditions or requirements.

§ 175-22.16 Buffer area modification.

When the application of the buffer area on a lot or parcel would result in the loss of a buildable area to the landowner regarding a lot or parcel recorded prior to October 1, 1989, encroachments into the buffer area may be allowed through an administrative process, subject to provision of a water quality impact assessment as required by this article and in accordance with the following criteria:
A. 
Encroachments into the buffer area shall be the minimum necessary to achieve a reasonable area for a principal structure and necessary utilities;
B. 
Where practicable, a vegetated area that will maximize water quality protection, mitigate the effects of the buffer encroachment, and is equal to the area encroaching the buffer area shall be established elsewhere on the lot or parcel;
C. 
The encroachment may not extend into the seaward 50 feet of the buffer area; and
D. 
Reasonable and appropriate conditions necessary to mitigate impacts identified in the water quality impact assessment required by this section.

§ 175-22.17 Buffer area modifications on agricultural lands.

On agricultural lands the agricultural buffer area shall be managed to prevent concentrated flows of surface water from breaching the buffer area and noxious weeds from invading the buffer area. The agricultural activities may encroach into the buffer area as follows:
A. 
Agricultural activities may encroach into the landward 50 feet of the one-hundred-foot wide buffer area when at least one agricultural best management practice, which, in the opinion of the Tidewater Soil and Water Conservation District, addresses the more predominant water quality issue on the adjacent land - erosion control or nutrient management - is being implemented on the adjacent land, provided that the combination of the undisturbed buffer area and the best management practice achieves water quality protection, pollutant removal, and water resource conservation at least the equivalent of the one-hundred-foot wide buffer area. If nutrient management is identified as the predominant water quality issue, a nutrient management plan, including soil test, must be developed consistent with the Virginia Nutrient Management Training and Certification Regulations (4 VAC 5-15 et seq.) administered by the Virginia Department of Conservation and Recreation.
B. 
Agricultural activities may encroach within the landward 75 feet of the one-hundred-foot wide buffer area when agricultural best management practices which address erosion control, nutrient management, and pest chemical control, are being implemented on the adjacent land. The erosion control practices must prevent erosion from exceeding the soil loss tolerance level, referred to as "T," as defined in the National Soil Survey Handbook of November 1996 in the Field Office Technical Guide of the U.S. Department of Agriculture Natural Resource Conservation Service. A nutrient management plan, including soil test, must be developed consistent with the Virginia Nutrient Management Training and Certification Regulations (4 VAC 5-15 et seq.) administered by the Virginia Department of Conservation and Recreation. In conjunction with the remaining buffer area, this collection of best management practices shall be presumed to achieve water quality protection at least the equivalent of that provided by the one-hundred-foot wide buffer area.
C. 
The buffer area is not required for agricultural drainage ditches if the adjacent agricultural land has in place best management practices in accordance with a conservation plan approved by the Tidewater Soil and Water Conservation District.
D. 
When agricultural or silvicultural uses within the buffer area cease, and the lands are proposed to be converted to other uses, the full one-hundred-foot wide buffer area shall be reestablished. In reestablishing the buffer, management measures shall be undertaken to provide vegetation that assures the buffer functions are maintained or established.

§ 175-22.18 Purposes of water quality impact assessment.

The purposes of the water quality impact assessment are to:
A. 
Identify the impacts of proposed land disturbance, development, or redevelopment on water quality and lands within the RPA and other environmentally sensitive lands;
B. 
Ensure that where land disturbance, development, or redevelopment does take place within the RPA and other sensitive lands, it will occur on those portions of a site and in a manner that will be least disruptive to the natural functions of the RPA and other sensitive lands;
C. 
To protect individuals from investing funds for improvements proposed for location on lands unsuited for such development because of high ground water, erosion, or vulnerability to flood and storm damage;
D. 
Specify mitigation which will address water quality protection.

§ 175-22.19 Water quality impact assessment required.

A. 
A water quality impact assessment shall be required for:
(1) 
Any proposed land disturbance, development or redevelopment activity within the RPA, including any buffer area encroachment as provided for in this article; and
(2) 
Any proposed development in the RMA when required by the Administrator after determination by the Administrator that the development warrants such assessment because of the unique characteristics of the site or intensity of the proposed development, and that such assessment is necessary to determine consistency of the development with the goals and objectives of the Act, the regulations promulgated thereunder and this chapter.
B. 
There shall be two levels of water quality impact assessments: minor assessment and a major assessment. The situations in which each level of water quality impact assessment is applicable and the requirements for each are set forth in §§ 175-22.20 and 175-22.21.

§ 175-22.20 Minor water quality impact assessment.

A. 
When required. A minor water quality impact assessment shall be required for any proposed land disturbance, development, or redevelopment within the Overlay District which causes no more than 5,000 square feet of land disturbance and requires any encroachment into the landward 50 feet of the one-hundred-foot buffer area component of the RPA.
B. 
General criteria. A minor water quality impact assessment must demonstrate through acceptable calculations that the undisturbed buffer area, enhanced vegetative plantings and any required best management practices will result in removal of no less than 75% of sediments and 40% of nutrients from post-development stormwater runoff, and that will retard runoff, prevent erosion, and filter non-point source pollution the equivalent of the full undisturbed one-hundred-foot buffer area.
C. 
Submission requirements. A minor water quality impact assessment shall be performed and certified as complete and accurate by individuals qualified to perform such assessment. Such assessment shall be submitted to and reviewed by the Administrator in conjunction with the plan of development review process as required by this article, and shall be made a part of any application for a rezoning, conditional use permit or variance pertaining to the subject land. The Administrator may require the assessment to be modified, resubmitted and certified as complete and accurate by a professional engineer or a certified land surveyor, licensed by the Commonwealth of Virginia if the Administrator is unable to complete his review due to the quality of information originally submitted.
D. 
Required information. Submission of a minor water quality impact assessment shall include six copies of all information required by this section and site drawings to scale, which show the following:
(1) 
Location of the components of the RPA, including the one-hundred-foot buffer area and any water body with perennial flow;
(2) 
Location of any structures, drives or other impervious cover, sewage disposal systems including reserve drainfield sites, and all areas of clearing or grading;
(3) 
Location and nature of the proposed effects of the encroachment into the buffer area;
(4) 
Types and location of proposed best management practices to mitigate the proposed encroachment into the buffer area;
(5) 
Location of existing vegetation onsite, including the number and type of trees and other vegetation to be removed in the buffer to accommodate the encroachment or modification; and
(6) 
Revegetation plan that supplements the existing buffer vegetation in a manner that provides for pollutant removal, erosion and runoff control.
E. 
Evaluation criteria. Upon completion of review of the minor water quality impact assessment, the Administrator shall determine if any proposed encroachment into the buffer area is consistent with the provisions of this article and shall make a finding based upon the following criteria:
(1) 
The proposed encroachment into the buffer area shall be necessary to enable reasonable development of the site, and proposed improvements cannot reasonably be located elsewhere on the site to avoid disturbance of the buffer area;
(2) 
Impervious surface shall be minimized to the greatest extent possible;
(3) 
Proposed best management practices, where required, shall achieve the requisite reductions and pollutant loadings;
(4) 
The cumulative impact of the proposed development, when considered in relation to other existing or proposed development on the site, shall not result in significant degradation of water quality.
F. 
Mitigation. The Administrator shall require additional mitigation where potential impact has not been adequately addressed. Evaluation of the impact shall be made by the Administrator based on the criteria set forth in this section.
G. 
Absence of mitigation is inconsistent. The Administrator shall find the proposal to be inconsistent with the purposes and intent of this article when the impact created by the proposal cannot be mitigated. Evaluation of the impact shall be made by the Administrator based on the criteria set forth in this section.

§ 175-22.21 Major water quality impact assessment.

A. 
When required. A major water quality impact assessment shall be required for any proposed development which:
(1) 
Exceeds 5,000 square feet of land disturbance within the Overlay District and proposes any encroachment into the landward 50 feet of the one-hundred-foot buffer area component of the RPA;
(2) 
Proposes to disturb any portion of any other component of the RPA or buffer area within 50 feet of any other component of the RPA; or
(3) 
Is located within the RMA and exceeds 5,000 square feet of land disturbance, when such assessment is required by the Administrator after determination by the Administrator that the development warrants such assessment because of the unique characteristics of the site or the intensity of the proposed development, and that such assessment is necessary to determine consistency with the goals and objectives of the Act, the regulations promulgated thereunder and this chapter.
B. 
General criteria. A major water quality impact assessment must demonstrate through acceptable calculations that the remaining buffer area and the necessary best management practices will result in removal of no less than 75% of sediments and 40% of nutrients from post development stormwater runoff.
C. 
Submission requirements. A major water quality impact assessment and the information required relative thereto shall be certified as complete and accurate by a professional engineer or a certified land surveyor licensed by the Commonwealth of Virginia. The Administrator may accept such assessment performed by an individual qualified to perform such assessment who is not a licensed professional engineer or certified land surveyor licensed in the Commonwealth of Virginia if, in the sole discretion of the Administrator, the Administrator determines that such assessment contains sufficient information to allow the Administrator to complete his review and such assessment is certified by such qualified individual as complete and accurate. Such assessment shall be submitted to and reviewed by the Administrator in conjunction with the plan of development review process as required by this article, and shall be made a part of any application for a rezoning, conditional use permit or variance pertaining to the subject land.
D. 
Review by CBLAD. As part of any major water quality impact assessment submittal, the Administrator may request review by the Chesapeake Bay Local Assistance Department (CBLAD). Upon receipt of the major water quality impact assessment, the Administrator shall determine if such review is warranted and may request CBLAD to review the assessment and respond with written comments. Any comments by CBLAD shall be incorporated into the final review by the Administrator, provided such comments are provided by CBLAD within 90 days of the request.
E. 
Required information. The following elements shall be included in the submission of a major water quality impact assessment. The information required herein and elsewhere in this section shall be considered the minimum for submission, unless the Administrator determines that certain elements are unnecessary due to the limited scope and nature of the proposed development. Submission shall include six copies of all information required by this section.
(1) 
All of the information required for a minor water quality impact assessment as set forth in § 175-22.20 of this article;
(2) 
A hydro geological element that:
(a) 
Describes the existing topography, soils, and hydrology of the site and adjacent lands;
(b) 
Describes the impacts of the proposed development on topography, soils, hydrology, and geology on the site and adjacent lands;
(c) 
Indicates the following:
[1] 
Disturbance or destruction of wetlands and justification for such action;
[2] 
Disruptions or reductions in the supply of water to wetlands, streams, lakes, rivers, or other water bodies;
[3] 
Disruptions to existing hydrology including wetlands and stream circulation patterns;
[4] 
Source location and description of proposed fill material;
[5] 
Location of dredge material and location of dumping area for such material;
[6] 
Estimation of pre- and post-development pollutant loads in runoff;
[7] 
Estimation of percent increase in impervious surface on site and type(s) of surfacing materials used;
[8] 
Percent of site to be cleared for project;
[9] 
Anticipated duration and phasing schedule of construction project; and
[10] 
Listing of all requisite permits from all applicable agencies necessary to develop project.
(d) 
Describes the proposed mitigation measures for the potential hydro geological impacts. Potential mitigation measures include:
[1] 
Additional proposed erosion and sediment control concepts beyond those normally required under § 175-22.10D; these additional concepts may include minimizing the extent of the cleared area, perimeter controls, reduction of runoff velocities, measures to stabilize disturbed areas, schedule and personnel for site inspection;
[2] 
Proposed stormwater management system for non-point source quality and quantity control;
(3) 
A landscape element that:
(a) 
Identifies and delineates the location of all woody plant material on site, including all trees six inches or greater diameter at breast height. Where there are groups of trees, stands may be outlined.
(b) 
Describes the impacts the development will have on the existing vegetation. Information should include:
[1] 
General limits of clearing, based on all anticipated improvements, including buildings, drives, and utilities;
[2] 
Clear delineation of all trees and other woody vegetation which will be removed; and
[3] 
Description of all plant species to be disturbed or removed.
(c) 
Describes the proposed measures for mitigation. Possible mitigation measures include:
[1] 
Proposed design plan and replanting schedule for trees and other woody vegetation removed for construction, including a list of proposed plants and trees to be used;
[2] 
Demonstration that the design of the plan will preserve to the greatest extent possible any woody trees and vegetation on the site and supplement the existing buffer vegetation in a manner that provides for pollutant removal, erosion and runoff control; and
[3] 
Demonstration that indigenous plants are to be used to the greatest extent possible.
F. 
Evaluation criteria. Upon completion of review of a major water quality impact assessment, the Administrator shall determine if the proposed development and any proposed encroachment into the buffer area are consistent with the provisions of this article and shall make a finding based upon the following criteria:
(1) 
Any proposed development within the RPA shall be water-dependent or redevelopment;
(2) 
Disturbance of wetlands shall be minimized;
(3) 
The development shall not result in significant disruption of the hydrology of the site;
(4) 
The development shall not result in significant degradation to aquatic vegetation or life;
(5) 
The development shall not result in unnecessary destruction of plant materials on the site;
(6) 
Proposed erosion and sediment control concepts shall be adequate to achieve the reductions in runoff and to prevent off-site sedimentation;
(7) 
Stormwater management proposals shall be adequate to control stormwater runoff to achieve the required performance criteria for pollutant control set forth in this article;
(8) 
Proposed revegetation of disturbed areas shall provide optimum erosion and sediment control benefits;
(9) 
The design and location of any proposed drainfield shall be in accordance with the requirements of § 175-22.10 of this article;
(10) 
The proposed development shall be consistent with the purpose and intent of the Overlay District; and
(11) 
The cumulative impact of the proposed development, when considered in relation to other existing or proposed development on the site, shall not result in a significant degradation of water quality.
G. 
Mitigation. The Administrator shall require additional mitigation where potential impacts have not been adequately addressed. Evaluation of mitigation measures will be made by the Administrator based on the criteria set forth in this section.
H. 
Absence of mitigation is inconsistent. The Administrator shall find the proposal to be inconsistent with the purpose and intent of this article when the impacts created by the proposal cannot be mitigated. Evaluation of the impacts will be made by the Administrator based on the criteria set forth in this section.

§ 175-22.22 Purpose of plan of development process.

The purpose of the plan of development process is to provide a means to review development proposals within the Overlay District to evaluate their potential impact on the quality of the waters of the Chesapeake Bay and to ensure compliance with the provisions of this article and the goals and objectives of the Act, the regulations promulgated thereunder and this chapter.

§ 175-22.23 Applicability of plan of development.

Any development or redevelopment exceeding 2,500 square feet of land disturbance within the Overlay District shall be subject to the plan of development review and approval process set forth in this Division prior to any clearing or grading of the site or the issuance of any building permit.

§ 175-22.24 Pre-submission conference.

Prior to submitting the required elements of the plan of development process, the applicant or the agent of the applicant shall schedule a pre-submission conference with the Administrator and shall discuss proposed plans with the Administrator. Preliminary sketch plans should be provided to the Administrator prior to the conference. The purpose of such conference is to advise the applicant as to the applicable requirements of this article, or other applicable formal submissions required for the plan of development process.

§ 175-22.25 Required plans and studies.

A. 
In addition to the site development plan requirements set forth in Article 17 of this chapter, the plat requirements of the Mathews County Subdivision Ordinance, and such other plan review and approval processes as may be applicable, the plan of development shall include the plans and studies identified in this section. Such plans and studies may be coordinated or combined with other required plans and studies as deemed appropriate by the Administrator to fulfill the requirements of this article. The Administrator may waive certain information required herein upon determination that the information is not necessary to ensure compliance with the provisions of this article due to the scope and nature of the proposed development. Submission of required plans and studies shall be accompanied by such fees as established by the Board of Supervisors.
B. 
The following plans or studies shall be submitted, unless otherwise provided for:
(1) 
A site plan in accordance with § 175-22.26 of this article;
(2) 
A landscape plan in accordance with §§ 175-22.27 through 175-22.30 of this article;
(3) 
A stormwater management plan in accordance with §§ 175-22.31 through 175-22.35 of this article;
(4) 
An environmental site assessment in accordance with §§ 175-22.36 through 175-22.38 of this article; and
(5) 
An erosion and sediment control plan that satisfies the requirements of this article and applicable provisions of the Erosion and Sediment Control Ordinance of Mathews County.[1]
[1]
Editor's Note: See Ch. 50, Erosion and Sediment Control.

§ 175-22.26 Site plan.

Six copies of a site plan drawn to scale and showing the following information shall be submitted to the Administrator:
A. 
Name, address, and telephone number of the owner of the property and the preparer of the plan;
B. 
Location of the property including name of the subdivision, tax map number, and name or route number where the property is located;
C. 
A boundary survey of the tract showing North arrow and property line measurements;
D. 
Location of all covenant building lines, setbacks, easements, and rights-of-way;
E. 
Existing zoning classification;
F. 
Date, scale, and number of sheets;
G. 
The location and dimensions of all existing and proposed structures, including but not limited to marine and temporary structures;
H. 
The location and extent of all wooded areas before development and the proposed area of clearing and limits of land disturbance. Percentages of pre- and post-development cover shall be shown and shall include the total site area in acres, the amount and percentage of the site to be devoted to open space and the amount and percentage of the site to be covered by impervious surface after development;
I. 
The locations of all existing and proposed septic tanks and drainfield sites, including reserve sites, as well as the location of all existing and proposed wells;
J. 
The location of all existing and proposed easements for roads, overhead and underground utilities, drainage, or other easements which may exist or are proposed on the property;
K. 
The location of all points of access as approved by the Virginia Department of Transportation;
L. 
The proposed location, layout, dimensions and treatment of all driveways, parking areas and other areas of impervious cover;
M. 
The shortest distances from all property lines to all existing and proposed structures;
N. 
The specific limits of all RPA components described in § 175-22.7 of this article, including the location of any water body with perennial flow, in every case where an environmental site assessment is required under the provisions of this article.
O. 
The approximate limit of the one-hundred-year floodplain.
P. 
Included with the site plan submission shall be documentation of all existing permits and pending applications pertaining to the parcel of land, including, but not limited to, Health Department permits for wells, septic tanks and drainfields; pending building permit applications; other pending site plan approvals; and any pending applications for rezoning, conditional use permit or variance. No grading or other on site activities shall commence prior to submittal to the Administrator of all wetlands permits required by law.

§ 175-22.27 Landscape plan.

A landscape plan shall be submitted with the required site plan to determine the extent of proposed clearing and grading and the types and extent of existing and proposed vegetation on the site. No clearing or grading of the site shall be permitted prior to approval of a landscape plan.

§ 175-22.28 Contents of landscape plan.

Landscape plans shall be prepared or certified by design professionals practicing within their areas of competence as described by the Code of Virginia and shall contain the following:
A. 
The landscape plan shall be drawn to scale and clearly delineate the location, size, and description of existing and proposed plant material. All existing trees on the site six inches or greater diameter at breast height (DBH) shall be shown on the landscape plan. Where there are groups of trees, stands may be outlined instead. The specific number of trees six inches or greater DBH to be preserved outside of the construction footprint shall be indicated on the plan. Trees and other woody vegetation proposed to be removed to create a desired construction footprint shall be clearly delineated on the landscape plan.
B. 
Any required RPA buffer area shall be clearly delineated and any plant material to be added to establish or supplement the buffer area, as required by this article, shall be shown on the landscape plan.
C. 
Within the buffer area, trees and other woody vegetation to be removed for sight lines, vistas, access paths, and best management practices, as provided for in § 175-22.15A through D of this article, shall be shown on the plan. Vegetation required by this article to replace any existing trees within the buffer area shall also be shown on the landscape plan.
D. 
Trees and other woody vegetation to be removed for shoreline stabilization projects and any replacement vegetation required by this article shall be shown on the landscape plan.
E. 
The landscape plan shall depict grade changes or other work adjacent to trees, which would affect them adversely. Specifications shall be provided as to how grade, drainage, and aeration would be maintained around trees and other vegetation to be preserved.
F. 
The landscape plan shall include specifications for the protection of existing trees and other vegetation during clearing, grading, and all phases of construction.
G. 
If the proposed development is a change in use from agricultural or silvicultural to some other use, the plan must demonstrate the re-establishment of vegetation in the buffer area.

§ 175-22.29 Landscape plan plant specifications.

A. 
All plant materials necessary to supplement the buffer area or vegetated areas outside the construction footprint shall be installed according to standard planting practices and procedures.
B. 
All supplementary or replacement plant materials shall be living and in a healthy condition. Plant materials shall conform to the standards of the most recent edition of the American Standard for Nursery Stock, published by the American Association of Nurserymen.
C. 
Where areas to be preserved, as designated on an approved landscape plan, are encroached, replacement of existing trees and other vegetation shall be achieved at a ratio of two planted trees to one removed. Replacement trees shall be a minimum 1.5 inches DBH at the time of planting.
D. 
Use of native or indigenous species.

§ 175-22.30 Maintenance of plant materials.

A. 
The applicant shall be responsible for the maintenance and replacement of all vegetation as may be required by the provisions of this article.
B. 
In buffer areas and areas outside the construction footprint, plant material shall be tended and maintained in a healthy growing condition and free from refuse and debris. Unhealthy, dying, or dead plant materials shall be replaced during the next planting season.

§ 175-22.31 Stormwater management plan.

A stormwater management plan shall be submitted as an element of the plan of development process for purposes of determining the amount of stormwater runoff and the required locations and sizes of stormwater structures and/or management practices necessary to control run-off in accordance with the requirements of this article.

§ 175-22.32 Contents of stormwater management plan.

The stormwater management plan shall contain the following:
A. 
Location and design of all planned stormwater control devices;
B. 
Procedures for implementing nonstructural stormwater control practices and techniques;
C. 
Pre- and post-development non-point source pollutant loadings and supporting documentation of all utilized coefficients and calculations;
D. 
For facilities, verification of structural soundness, including a professional engineer or Class IIIB surveyor certification;
E. 
Any other information, including maps, charts, graphs, tables, photographs, narrative descriptions or references as appropriate to communicate the information required by this section.

§ 175-22.33 Coordination with future plans.

Site-specific facilities shall be designed to accommodate all phases of development proposed on the site.

§ 175-22.34 Stormwater calculations.

All engineering calculations shall be performed in accordance with applicable procedures outlined in the current edition of the Handbook.

§ 175-22.35 Inspection and maintenance.

The plan shall establish a long-term schedule for inspection and maintenance of stormwater management facilities that includes all maintenance requirements and persons responsible for performing maintenance. If the designated maintenance responsibility is with a party other than Mathews County, then a maintenance agreement shall be executed between the responsible party and the governing body.

§ 175-22.36 Environmental site assessment.

A. 
An environmental site assessment shall be submitted when necessary for purposes of delineating the components of the resource protection area including water bodies with perennial flow on the site and providing the basis for site-specific delineation of the RPA boundary as required under § 175-22.8 of this article. An environmental site assessment shall also be submitted when necessary for purposes of delineating any land type comprising the resource management area on the site and providing the basis for determining the applicability of the provisions of this article to the site or any portions of the site.
B. 
Applicants shall submit an environmental site assessment prior to or in conjunction with preparation of preliminary site plans and other plans in order that accurate delineation of the RPA components and RMA land types can be established before development decisions are made and more detailed plans are prepared.
(1) 
The environmental site assessment shall be drawn at the same scale as the site plan, or the same scale as the subdivision plat, in the case of submission in conjunction with a proposed subdivision, and shall be certified as complete and accurate by a professional engineer, a certified land surveyor, a certified landscape architect or other qualified individual who is determined by the Administrator to provide accurate and detailed information sufficient to allow the Administrator to perform his or her review. In the case of a site devoted to single-family dwelling purposes, or other use or development resulting in less than 5,000 square feet of land disturbance, the requirements of this subsection may be waived by the Administrator, provided the Administrator is satisfied that the information is complete and accurate.

§ 175-22.37 Content of environmental site assessment.

A. 
An environmental site assessment, when required for purposes of delineating the components of the RPA, shall clearly delineate the following environmental features:
(1) 
Tidal shores;
(2) 
Tidal wetlands;
(3) 
Non-tidal wetlands connected by surface flow and contiguous to tidal wetlands or bodies with perennial flow;
(4) 
A one-hundred-foot buffer area located adjacent to and landward of the components listed in Subsection A(1) through (3) above, and along both sides of any water body with perennial flow.
B. 
An environmental site assessment, when required for purposes of delineating the boundary of the RMA, shall clearly delineate the following land types, provided the Administrator may waive delineation of any land type which clearly does not affect the boundary of the RMA on the site in question:
(1) 
One-hundred-year floodplains;
(2) 
Highly erodible soils, including steep slopes;
(3) 
Highly permeable soils; and
(4) 
Nontidal wetlands not included in the RPA.

§ 175-22.38 Wetlands delineation.

Wetlands delineations shall be performed consistent with the procedures specified in the Federal Manual for Identifying and Delineating Jurisdictional Wetlands, 1989, or other similar manual or guideline utilized by the Corps of Engineers of the United States Army at the time that the wetlands delineation is reviewed by the Administrator in accordance with this article.

§ 175-22.39 Approval of plan of development elements.

The Administrator shall take final action to approve or disapprove all plans and studies required as elements of the plan of development process within 60 days after receipt of all required plans and related information, including revisions or additions to materials initially submitted. The 60 days shall commence on the next day after the Administrator determines in his sole discretion that the information submitted as required by this chapter is full and complete.

§ 175-22.40 Zoning permits.

No zoning permit shall be approved until the Administrator has granted final approval of all plans and studies required by the provisions of this article. All applications for zoning permits for use or development within the Overlay District shall be accompanied by or shall make specific reference to all plans approved pursuant to the provisions of this article.

§ 175-22.41 Certificates of occupancy.

No certificate of use and occupancy shall be issued until the Administrator has certified to the Building Official that all requirements of this article have been satisfied and that all buffer areas, landscaping, stormwater management facilities and other requirements of approved plans have been installed or completed in accordance with such plans, except as provided in this section.
A. 
When the occupancy of a structure is desired prior to the completion of the required landscaping, stormwater management facilities, or other specifications of an approved plan, a certificate of occupancy may be issued only if the applicant provides to the governing body a form of surety satisfactory to the Administrator in an amount equal to the remaining plant materials, related materials, and installation costs of the required landscaping or facilities and/or maintenance costs for required stormwater management facilities during the construction period.
B. 
All required landscaping shall be installed and approved by the first planting season following issuance of a certificate of use and occupancy or the surety may be forfeited to the governing body after 15 days' written notice to the owner of the County's intent to forfeit said surety.
C. 
All required stormwater management facilities or other specifications shall be installed and approved within 18 months of project commencement. Should the applicant fail, after proper notice, to initiate, complete or maintain appropriate actions required by the approved plan, the surety may be forfeited to the governing body. The governing body may collect from the applicant the amount of the surety held.
D. 
After all actions required by the approved site plan have been completed, the applicant shall submit a written request for inspection. If the requirements of the approved plan have been completed to the satisfaction of the Administrator, such unexpended and unobligated portion of the surety shall be refunded within 60 days following the receipt of the applicant's request for inspection. The Administrator may require a certificate of substantial completion from a professional engineer or Class IIIB surveyor before making the final inspection.

§ 175-22.42 Expiration of final approvals.

A. 
Final approval of a site plan submitted under the terms of this article shall expire five years after the date of such approval. During that period all building permits shall be obtained and the development shall be put into use.
B. 
For so long as the final site plan remains valid in accordance with the provisions of this section, no change or amendment to any County ordinance, map, resolution, policy or plan adopted subsequent to the date of approval of the final site plan shall adversely affect the right of the developer or successor in interest to commence and complete an approved development in accordance with the lawful terms of the site plan unless there has been a mistake, fraud or a change in circumstances substantially affecting the public health, safety or welfare.
C. 
Application for minor modifications to approved site plans made during the five-year term of validity shall not constitute a waiver of provisions of this section nor shall the approval of such minor modifications extend the period of validity.

§ 175-22.43 Modifications to approved plans.

Adjustments and modifications to approved plans of development may be authorized by the Administrator when requested in writing by the applicant and accompanied by such revised plans, information, further studies or justification as deemed necessary by the Administrator to constitute an adequate record and to ensure such adjustment or modification will conform with all requirements of this article.

§ 175-22.44 Appeals.

Pursuant to § 15.2-2301 et seq. of the Code of Virginia and the provisions of Articles 18 and 19 of this chapter, an appeal to the Board of Zoning Appeals ("BZA") may be taken by any person aggrieved or by any officer, department, board or bureau of the County affected by any decision of the Administrator or from any order, requirement, decision or determination made by any other administrative officer in the administration or enforcement of any provision of this article.

§ 175-22.45 Nonconforming buildings and structures.

Any building or structure which was lawfully existing on the effective date of this article or any subsequent amendment thereto, and which does not conform with the requirements established by this article or by such amendment thereto, may be continued in accordance with the provisions of Article 16 of this chapter.

§ 175-22.46 Waiver for nonconforming structure.

A. 
The Administrator may grant a waiver from the requirements of this article to permit an addition to a structure existing at the effective date of this article which becomes nonconforming as a result of enactment of this article, provided that:
(1) 
There shall be no net increase in non-point source pollution load;
(2) 
Any development or land disturbance exceeding 2,500 square feet shall comply with all erosion and sediment control requirements of this article;
(3) 
All other requirements of this chapter applicable in the underlying district shall be met, including the approval of a zoning permit as set forth in Article 20.
(4) 
The request for the waiver is the minimum necessary to afford relief;
(5) 
Granting the waiver will not confer upon the applicant any specific privileges that are denied by this article to other property owners in similar situations;
(6) 
The waiver is in harmony with the purpose and intent of this article and does not result in water quality degradation;
(7) 
The waiver is not based on conditions or circumstances that are self-created or self-imposed;
(8) 
Reasonable and appropriate conditions are imposed, as warranted, that will prevent the waiver from causing degradation of water quality;
(9) 
Other findings, as appropriate and required by Mathews County are met.
B. 
This provision shall not apply to accessory structures.

§ 175-22.47 Exemptions for utilities, railroads and facilities.

The following exemptions are permitted:
A. 
Construction, installation, operation and maintenance of electric, natural gas, fiber-optic, and telephone transmission lines; railroads; and public roads constructed by the Virginia Department of Transportation and their appurtenant structures in compliance with the Erosion and Sediment Control Law (§ 10.1-560 et seq. of the Code of Virginia) and the Stormwater Management Act (10.1-6301 et seq. of the Code of Virginia) and the Erosion and Sediment Control Ordinance of Mathews County shall be deemed to constitute compliance with the relevant requirements of this article. The exemption of public roads is further conditioned on the following;
(1) 
Optimization of the road alignment and design, consistent with other applicable requirements, to prevent or otherwise minimize:
(a) 
Encroachment in the resource protection area; and
(b) 
Adverse effects on water quality.
B. 
Construction, installation and maintenance of water, sewer, natural gas, and underground telecommunications and cable television lines owned, permitted, or both by Mathews County or a regional service authority shall be exempt from the requirements of this article, provided that:
(1) 
To the degree possible the location of such utilities and facilities shall be outside the RPA;
(2) 
No more land shall be disturbed than is necessary for the proposed utility installation;
(3) 
All such construction, installation and maintenance of such utilities and facilities shall be in compliance with all applicable federal, state and County permits and designed and constructed in a manner that protects water quality; and
(4) 
Any land disturbance exceeding an area of 2,500 square feet shall comply with the Erosion and Sediment Control Ordinance of Mathews County.[1]
[1]
Editor's Note: See Ch. 50, Erosion and Sediment Control.

§ 175-22.48 Exemptions for silviculture activities.

Silviculture activities are exempt from the requirements of this article provided they adhere to water quality protection procedures and/or best management practices prescribed by the Virginia Department of Forestry in Virginia's Forestry Best Management Practices for Water Quality. The Virginia Department of Forestry will oversee and document installation of best management practices and will monitor in-stream impacts of forestry operations in Chesapeake Bay Preservation Areas.

§ 175-22.49 Exemptions in RPA.

Land disturbances within the RPA associated with water wells, passive recreation facilities such as boardwalks, trails and pathways, and historic preservation involving archeological activities, shall be exempt from the requirements of this article provided it is demonstrated to the satisfaction of the Administrator that:
A. 
Any required permits, except those to which this exemption applies, shall have been issued;
B. 
Sufficient and reasonable proof is submitted that the intended use will not deteriorate water quality;
C. 
The intended use does not conflict with nearby planned or approved uses; and
D. 
Any land disturbance exceeding an area of 2,500 square feet shall comply with the requirements of the Erosion and Sediment Control Ordinance of Mathews County.[1]
[1]
Editor's Note: See Ch. 50, Erosion and Sediment Control.

§ 175-22.50 Variances.

Pursuant to the provisions of §§ 15.2-2309 and 15.2-2310 of the Code of Virginia and the applicable provisions of Article 19 of this chapter, the Board of Zoning Appeals shall have the power to hear and decide applications for variances from the provisions of this article. Mathews County shall notify the affected public of any such variance requests and shall consider these requests in a public hearing in accordance with Section 15.2-2204 of the Code of Virginia, except that only one hearing shall be required. In addition to the requirements set forth in the Code of Virginia and elsewhere in this chapter relative to the granting of variances, the following shall apply:
A. 
The applicant for a variance from the provisions of §§ 175-22.11 through 175-22.17 of this article shall submit to the Board of Zoning Appeals a written request and a water quality impact assessment as required by this article for purposes of identifying the potential impacts of the requested variance on water quality and on lands within the RPA.
B. 
The Administrator shall submit a report to the Board describing the Administrator's evaluation of the water quality impact assessment provided by the applicant;
C. 
The Board shall consider the water quality impact assessment, along with all other appropriate factors, in determining if the requested variance will be in harmony with the intended spirit and purpose of this article and this chapter and must make the following findings:
(1) 
Granting the variance will not confer upon the applicant any special privileges denied by this article to other property owners in the Overlay District;
(2) 
The variance request is not based on conditions or circumstances that are self-created or self-imposed, nor does the request arise from conditions or circumstances either permitted or nonconforming that are related to adjacent parcels;
(3) 
The variance request is the minimum necessary to afford relief;
(4) 
The variance request will be in harmony with the purpose and intent of the Overlay District, not injurious to the neighborhood or otherwise detrimental to the public welfare, and is not of substantial detriment to water quality; and
(5) 
Reasonable and appropriate conditions are imposed which will prevent the variance request from causing a degradation of water quality.
D. 
If the Board cannot make the required findings or refuses to grant the variance, the Board shall return the request for a variance together with the water quality impact assessment and the written findings and rationale for the decision to the applicant.
E. 
A request for a variance to the requirements of provisions of this article other than §§ 175-22.11 through 175-22.17 shall be made in writing to the Administrator. The Administrator may grant these variances provided that:
(1) 
Variances to the requirements are the minimum necessary to afford relief; and,
(2) 
Reasonable and appropriate conditions are placed upon any variance that is granted, as necessary, so that the purpose and intent of this article is preserved.
F. 
Variances to § 175-22.10 may be made provided that the findings noted in § 175-22.50C(1) through (3) are made.

§ 175-22.51 Enforcement of this article.

If the Administrator shall find that any provisions of this article, including violations of the terms and conditions of any plans, permits or approvals granted pursuant to this article, the Administrator shall have all of the enforcement powers delegated pursuant to Article 20 of this chapter and relevant provisions of Titles 15.2 and 10.1 of the Code of Virginia, including but not limited to the right to seek criminal enforcement, an award of civil penalties and injunctive relief in accordance with law.