A. 
For any proposed development, the owner/developer shall submit phased stormwater management plans to the City of Havre de Grace Department of Planning – Inspection Services for review and approval. At a minimum, plans shall be submitted for the concept, site development, and final stormwater management construction phases of project design. Each plan submittal shall include the minimum content specified in § 169-27 of this chapter and meet the requirements of the Design Manual and Article IV of this chapter.
B. 
The Department shall perform a comprehensive review of the stormwater management plans for each phase of site design. Coordinated comments will be provided for each plan phase that reflects input from all appropriate agencies, including, but not limited, to the Soil Conservation District (SCD) and the Departments of Planning – Inspection Services, and Public Works. All comments from the Department and other appropriate agencies shall be addressed and approval received at each phase of project design before subsequent submissions.
A. 
The owner/developer shall submit a concept plan that provides sufficient information for an initial assessment of the proposed project and whether stormwater management can be provided according to § 169-31 of this chapter and the Design Manual. Plans submitted for concept approval shall include, but are not limited to:
(1) 
A map at a scale of one inch equals 100 feet, one inch equals 50 feet, one inch equals 20 feet or as specified by the Department and allowing the necessary detail to show site location, existing natural features, water and other sensitive resources, topography, and natural drainage patterns;
(2) 
The anticipated location of all proposed impervious areas, buildings, roadways, parking, sidewalks, utilities, and other site improvements;
(3) 
The location of the proposed limit of disturbance, erodible soils, steep slopes, and areas to be protected during construction;
(4) 
Preliminary estimates of stormwater management requirements, the selection and location of ESD practices to be used, and the location of all points of discharge from the site;
(5) 
A narrative that supports the concept design and describes how ESD will be implemented to the MEP;
(6) 
Any other information required by the Department.
B. 
Following the stormwater management concept plan approval by the Department, the owner/developer shall submit site development plans that reflect comments received during the previous review phase. Plans submitted for site development approval shall be of sufficient detail to allow site development to be reviewed and include but not be limited to:
(1) 
All information provided during the stormwater management concept plan review phase;
(2) 
Final site layout, exact impervious area locations and acreages, proposed topography, delineated drainage areas at all points of discharge from the site, and stormwater volume computations for ESD practices and quantity control structures;
(3) 
A proposed erosion and sediment control plan that contains the construction sequence, and phasing necessary to limit earth disturbances and impacts to natural resources and an overlay plan showing the types and locations of ESD and erosion and sediment control practices to be used;
(4) 
A narrative that supports the site development design, describes how ESD will be used to meet the minimum control requirements, and justifies any proposed structural stormwater management measure; and
(5) 
Any other information required by the Department.
C. 
Following stormwater management site development approval by the Department, the owner/developer shall submit final erosion and sediment control and stormwater management plans that reflect the comments received during the previous review phase. Plans submitted for final approval shall be of sufficient detail to allow all approvals and permits to be issued according to the following:
(1) 
Final erosion and sediment control plans shall be submitted according to COMAR 26.17.01.05; and
(2) 
Final stormwater management plans shall be submitted for approval in the form of construction drawings and be accompanied by a report that includes sufficient information to evaluate the effectiveness of the proposed runoff control design.
D. 
Reports submitted for final stormwater management plan approval shall include, but are not limited to:
(1) 
Geotechnical investigations, including soil maps, borings, site-specific recommendations; and any additional information necessary for the final stormwater management design;
(2) 
Drainage area maps depicting pre-development and post-development runoff flow path segmentation and land use;
(3) 
Hydrologic computations of the applicable ESD and unified sizing criteria according to the Design Manual for all points of discharge from the site;
(4) 
Hydraulic and structural computations for all ESD practices and structural stormwater management measures to be used;
(5) 
A narrative that supports the final stormwater management design;
(6) 
The owner shall certify on the drawings that all clearing, grading, drainage, construction and development shall be conducted in strict accordance with the plan.
(7) 
Any other information required by the Department.
E. 
Construction drawings submitted for final stormwater management plan approval shall include, but are not limited to:
(1) 
A vicinity map;
(2) 
Existing and proposed topography and proposed drainage areas, including areas necessary to determine downstream analysis for proposed stormwater management facilities;
(3) 
Any proposed improvements, including location of buildings or other structures, impervious surfaces, storm drainage facilities, and all grading;
(4) 
The location of existing and proposed structures and utilities;
(5) 
Any easements and rights-of-way;
(6) 
The delineation, if applicable, of the one-hundred-year floodplain and any on-site wetlands;
(7) 
Structural and construction details, including representative cross sections for all components of the proposed drainage system or systems, and stormwater management facilities;
(8) 
All necessary construction specifications;
(9) 
A sequence of construction;
(10) 
Data for total site area, disturbed area, new impervious area, and total impervious area;
(11) 
A table showing the ESD and unified sizing criteria volumes required in the Design Manual;
(12) 
A table of materials to be used for stormwater management facility planting;
(13) 
All soil boring logs and locations;
(14) 
An inspection and maintenance schedule;
(15) 
Certification by the owner/developer that all stormwater management construction will be done according to this plan;
(16) 
An as-built certification signature block to be executed after project completion; and
(17) 
Any other information required by the Department.
F. 
If a stormwater management plan involves direction of some or all runoff from the site, it is the responsibility of the developer to obtain from adjacent property owners any easements or other necessary property interests concerning flowage of water. Approval of a stormwater management plan does not create or affect any right to direct runoff onto adjacent property without that property owner's permission. An agreement allowing use of any off-site stormwater management facility shall be recorded in the land records of Harford County.
A. 
The design of stormwater management plans shall be prepared by any individual whose qualifications are acceptable to the Department. The Department requires that the design be prepared by a professional engineer, professional land surveyor, or landscape architect licensed in the state, as necessary to protect the public and the environment.
B. 
If a stormwater BMP requires either a dam safety permit from MDE or small pond approval from the Harford Soil Conservation District, the Department shall require that the design be prepared by a professional engineer licensed in the state.[1]
[1]
Editor's Note: Former Subsections C and D, which immediately followed, were repealed 11-15-2010 by Ord. No. 920. See now § 169-24F and G.
A. 
Any modification of the approved plans either prior to plan implementation or after original plan approval shall be submitted to the Department and will be reprocessed in the same manner as the original plan when:
[Amended 11-15-2010 by Ord. No. 920]
(1) 
Inspection has revealed the inadequacy of the plan to accomplish the stormwater management objectives of the plan. Cost for modification shall be borne by the owner if such inadequacy is or was the responsibility of the owner, and further development of the site shall be prohibited until the modifications are made.
(2) 
The person responsible for carrying out the approved plan finds that, because of changed circumstances or for other reasons, the approved plan cannot be effectively executed and proposes revisions to the plan that are consistent with the requirements of this chapter.
B. 
The Department may, in emergency situations and at its discretion, order repairs or modifications in order to protect watercourses, other properties or the general public from damage, to remain in effect until such modifications or revisions to the plan shall have been approved and implemented. Further development of the site shall be prohibited until the modifications are made.[1]
[1]
Editor's Note: Former Subsection C, regarding field modifications of a minor nature, which immediately followed, was repealed 11-15-2010 by Ord. No. 920.