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Town of Rock Hall, MD
Kent County
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Table of Contents
Table of Contents
A. 
The owner/applicant shall notify the approving authority for stormwater inspection at least 48 hours before beginning any work in conjunction with site development, the stormwater management plan and completion of construction.
B. 
Regular inspections shall be made and documented for each ESD planning technique and practice at the stages of construction specified in the Design Manual by the approving authority, or a certified engineer licensed in the State of Maryland. At a minimum, all ESD and other nonstructural practices shall be inspected upon completion of final grading, the establishment of permanent stabilization, and before issuance of use and occupancy approval.
C. 
Written reports will be prepared for every inspection and shall include:
(1) 
The date and location of the inspection;
(2) 
Whether construction was in compliance with the approved stormwater management plan;
(3) 
Any variations from the approved construction specifications; and
(4) 
Any violations that exist.
D. 
The owner/applicant and on-site personnel shall be notified in writing when violations are observed. Written notification shall describe the nature of the violation and the required corrective action.
E. 
Work shall not proceed until the work previously completed is approved by the appropriate inspector and the inspector furnishes the owner/applicant with the results of the inspection reports. The inspector should provide copies of the inspection report to the owner/applicant as soon as possible after completion of each required inspection.
At a minimum, regular inspections shall be made and documented at the following specific stages of construction:
A. 
Ponds:
(1) 
Upon completion of excavation to subfoundation and, when required, installation of structural supports or reinforcement for structures, including but not limited to:
(a) 
Core trenches for structural embankments;
(b) 
Inlet and outlet structures, anti-seep collars or diaphragms, and watertight connectors; and
(c) 
Trenches for enclosed storm drainage facilities.
(2) 
During placement of structural fill, concrete, and installation of piping and catch basins;
(3) 
During backfill of foundations and trenches;
(4) 
During embankment construction, and
(5) 
Upon completion of final grading, establishment of permanent stabilization.
B. 
Wetlands: at all stages specified for pond construction, during and after wetlands reservoir planting, and during the second growing season to verify a vegetation survival rate of at least 50%.
C. 
Infiltration trenches:
(1) 
During excavation to subgrade;
(2) 
During placement and backfill of underdrain systems and observation wells;
(3) 
During placement of geotextiles and all filter media;
(4) 
During construction of appurtenant conveyance systems such as diversion structures, prefilters and filters, inlets, outlets, and flow distribution structures; and
(5) 
Upon completion of final grading and establishment of permanent stabilization.
D. 
Infiltration basins. At all stages specified for pond construction, during placement of and backfill of under drainage system.
E. 
Filtering systems:
(1) 
During excavation to subgrade;
(2) 
During placement and backfill of underdrain systems;
(3) 
During placement of geotextiles and all filter media;
(4) 
During construction of appurtenant conveyance systems such as diversion structures, prefilters, and filters, inlets, outlets, and flow distribution structures; and
(5) 
Upon completion of final grading and establishment of permanent stabilization.
F. 
Open channel systems:
(1) 
During excavation to subgrade;
(2) 
During placement and backfill of underdrain systems for dry swales;
(3) 
During installation of diaphragms, check dams, or weirs; and
(4) 
Upon completion of final grading and establishment of permanent stabilization.
G. 
ESD practices. At the stage of construction specified in the Design Manual for each ESD planning technique and practice and at a minimum upon completion of final grading, the establishment of permanent stabilization and before issuance of use and occupancy approval.
Once construction is complete, "as-built" plan certification shall be submitted by a professional engineer or professional land surveyor licensed in the State of Maryland to ensure that ESD techniques, treatment practices, and structural stormwater management practices and conveyance systems comply with the specifications contained in the approved plan. At a minimum, "as-built" certification shall include a set of drawings comparing the approved plan with what was constructed. Other information shall be submitted as required by the approving authority.
Within 45 days of construction, the approving authority shall submit a notice of construction completion to the Maryland Department of the Environment on a form supplied by the Maryland Department of the Environment for each structural stormwater management practice. The type, number, total drainage area, and total impervious area treated by all ESD techniques and practices shall be reported to the Maryland Department of the Environment. A notice of construction completion shall be sent to the Kent Soil and Water Conservation District when BMPs requiring District approval are constructed.