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:
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:
(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.
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.
