[Ord. No. 01-35, 8-2-2001; Ord. No. 08-38, 10-2-2008]
A.
The
purpose of the sediment and erosion control system is to minimize
erosion on the project site and prevent the sediment caused by erosion
from leaving the project site.
B.
Any
isolated lot in a residential district, unless it involves alteration
of existing drainage facilities, wetlands or watercourse, shall not
be required to submit a sediment and erosion control plan. Sediment
and erosion controls shall be provided if any development occurs.
C.
Erosion
and sediment controls must be provided both as temporary or non-structural,
and permanent or structural measures.
D.
The erosion and sediment control plan may be included as part of
the storm water control plan. The erosion and sediment control plan
must be submitted with the grading permit application and the required
fee of seventy-five dollars ($75.00) paid before a grading permit
is issued.
[Ord. No. 15-02, 2-5-2015]
[Ord. No. 01-35, 8-2-2001]
A.
Excavations,
grading or filling shall have a finished grade not to exceed a three
(3) to one (1) 3:1 (33%) slope. Steeper slopes may be approved if
the excavation is a cut through solid rock or if the slope is retained
by structural means, such as a an engineered retaining wall.
B.
Graded
areas shall be stabilized as soon as that phase of grading is complete
to minimize erosion and sediment loss until permanent stabilization
measures are in place.
C.
Grading
shall be phased so that the amount of area exposed to erosion at any
time is minimized.
D.
Measures
shall be taken to direct storm water runoff away from graded portions
of the site.
E.
Natural
vegetation removed during grading shall be re-established in such
a density as to prevent erosion. Permanent type grasses shall be established
as soon as possible. Permanent grass must be established when grading
operations are completed or suspended for more than thirty (30) days
at sufficient density to provide erosion control. Finished grades
or areas not to get disturbed by future development in excess of twenty
percent (20%) slopes shall be mulched and tacked at a rate of one
hundred (100) pounds of mulch per one thousand (1,000) square feet.
F.
Efforts
shall be made to minimize erosion from wind (dust) as well as water
erosion.
G.
Sediment
shall be retained on site by filtering runoff and/or by providing
sediment basins.
H.
Construction
entrances shall be constructed and placed in such a way to minimize
mud, soil, rock or any other debris from being transported via traffic
from the site onto a public right-of-way. Such entrance shall be kept
in a relatively dust-free condition and act as a scrubbing agent on
the vehicles leaving the development.
[Ord. No. 01-35, 8-2-2001]
A.
Sediment
and erosion control plans shall provide for sediment basins, silt
barriers, diversions, grass waterways, mulching, seeding and other
acceptable sediment and erosion control measures whenever necessary
to avoid damage to adjoining private or public property. These measures
can be temporary or permanent measures, structural or non-structural.
1.
Examples of structural measures: sediment basins, detention/retention
basins, check dams, weirs, debris and catch basins, barriers (straw/hay
bales, stabilized drainage channels, inlet protection), filter fences
and construction entrance.
2.
Examples of non-structural measures: vegetation (permanent, temporary,
and cover crops), mulching (straw or hay and hydraulic), soil binders
(acrylic copolymers, emulsifications, other), erosion control blankets
(biodegradable — short-term, synthetic — long-term, turf
reinforcement mats, three-dimensional, soil filled, soil fibers).
B.
The
plan shall provide topographic contours lines in no larger than five
(5) foot spacing. The plan shall also have the same basic topographic
information as is required for the storm water control plan.
C.
The
sediment and erosion control plan shall show locations of all temporary,
structural and non-structural, and permanent sediment and erosion
control measures.
D.
The
plan must show details for installation of the measures to be installed
on the site (silt fence, staked straw bales, berms ditch checks, construction
entrances, etc.). These details must meet the standards for correct
installation of the method used based on the 1999 Edition of Missouri
Standard Specifications for Highway Construction.
E.
The
plans must specify the maintenance schedule for the sediment and erosion
control methods used on site. During the construction phase of the
development all sediment and erosion control facilities shall be inspected
for maintenance purposes after every storm event.
F.
City
staff will perform inspections for compliance with this Chapter periodically
and as requested. The contractor shall make corrective measures within
forty-eight (48) hours or before any forecast storm event. Non-compliance
with a notice to correct will result in violation notice being issued
to the contractor and/or the property owner.
