(a) Application requirements. An erosion and sediment control plan shall contain all information required by COMAR 26.17.01.07. In addition, an erosion and sediment control plan shall contain all information required by the Department and the Anne Arundel Soil Conservation District. The information ordinarily shall include:
(1) the signature and seal of a design professional on all plan sheets;
(2) a boundary line survey tied to the County coordinate system;
(3) a detailed plan (plan sheet 24" x 36") at a scale that is no smaller than a 1" = 40';
(4) the elevations, dimensions, location, extent, and slope of proposed grading, including building and driveway grades, utilities, sewer, water, storm drains and, if applicable, the 100-year flood elevation clearly indicated with finished contours at the same interval as required or used for existing topography;
(5) the estimate of the quantity of excavation and fill involved;
(6) complete storm drainage studies and stormwater management analysis if not previously submitted in accordance with the provisions of Article 17 of this Code;
(7) an appropriate legend;
(8) a 100-foot adjacent peripheral strip, showing existing topography at a contour interval as specified by the Department;
(9) an acknowledgment that all clearing, grading, construction, and development will be done pursuant to the plan;
(10) an identification of responsible personnel;
(11) the use and extent of fills;
(12) a statement that inspections will be requested as required by § 16-3-302;
(13) any enclosure of sediment basins or traps required by § 16-3-104;
(14) the location of the erosion control monitoring device for any piped outfall, sediment trap outfall, sediment basin outfall, or open channel outfalls that serve as a sediment and erosion control feature during construction; and
(15) a statement in the construction sequence that the construction of the first floor walls of any building or structure may not proceed until the foundation has been backfilled, the disturbed areas have been stabilized and a certificate is provided to the inspector verifying the grades and drainage patterns shown on the approved erosion and sediment control plan have been obtained.
(b) Sequence of construction required. An erosion and sediment control plan shall also include a sequence of construction that accurately describes the relationship between the implementation and maintenance of controls, including permanent and temporary stabilization, grading units and the various stages or phases of earth disturbance and construction. Projects shall be sequenced and phased so that no more than one grading unit is allowed to be disturbed at any given time. The sequence of construction shall at least describe:
(1) requests for a pre-construction meeting with the Department;
(2) clearing and grubbing as necessary for the installation of perimeter controls;
(3) construction and stabilization of perimeter controls;
(4) remaining clearing and grubbing within installed perimeter controls;
(5) road grading;
(6) grading for the remainder of the site;
(7) utility installation and connections to existing structures;
(8) construction of buildings, roads, and other construction;
(9) final grading, landscaping, and stabilization;
(10) installation of stormwater management measures;
(11) approval of the Department prior to removal of sediment controls; and
(12) removal of controls and stabilization of areas that are disturbed by removal of sediment controls.
(c) Stabilization measures required. Erosion and sediment control plans shall also include specifications for temporary and permanent stabilization measures. The standard stabilization note on the plan shall state:
(1) that following the initial soil disturbance or re-disturbance, permanent or temporary stabilization must be completed within (i) three calendar days for all perimeter dikes, swales, ditches, perimeter slopes and all slopes steeper than 3 horizontal to 1 vertical (3:1), and (ii) seven calendar days for all other disturbed or graded areas on the project not under active grading;
(2) any details for areas requiring advanced stabilization; and
(3) any maintenance requirements as identified in the standards and specifications.
(d) Additional requirements. The following additional requirements shall apply to implementation of an erosion and sediment control plan:
(1) A developer shall obtain all necessary permits and request a pre-construction meeting described in § 16-3-301.
(2) The permittee shall install sediment controls and stabilize perimeter controls within three days of disturbance and shall obtain first phase approval by the erosion control inspector prior to commencing work. The inspector may require that an inspection and certification of the installation of sediment controls also be performed by a design professional prior to commencing work.
(3) If there is to be demolition of any existing structures, all debris shall be hauled to an approved site.
(4) Access, travel lanes, heavy use, lay down, concrete wash down, and staging areas shall require accelerated mechanical stabilization.
(5) Stabilization shall be completed in seven calendar days on all other disturbed or graded areas on the project not under active grading. In the event of wet weather, the sediment and erosion control inspector may require additional sediment protection and stabilization.
(6) After the site is stabilized and with the sediment and erosion control inspector's approval, framing may commence on the ground floor. During building construction beyond the ground floor, all disturbed areas must be stabilized by the end of each day.
(7) Installation of storm water management systems may not be conducted until the upstream areas are 95% stabilized.
(Bill No. 58-10; Bill No. 83-15)