HomeMy Public PortalAboutCity of Webster GrovesMB sTER
G 0
Operation and Maintenance Program
for the Prevention and Reduction of
Pollution in Stormwater Runoff
from Municipal Operations
March 2016
TABLE OF CONTENTS
Chapter 1 — Program Administration 1
Chapter 2 — General Housekeeping, Operation and Maintenance 3
Chapter 3 — Vehicle/Equipment Repair & Maintenance Operation 8
Chapter 4 — Vehicle/Equipment Washing 11
Chapter 5 — Facility Repair, Remodeling, and Construction 12
Chapter 6 — Cleaning and Maintenance of Roadways, Bridges and Parking Facilities 14
Chapter 7 — Maintenance of Parks, Green Spaces, Trails and Landscaping 17
Chapter 8 — Cleaning and Maintenance of Drainage Channels, Storm Sewers and Inlets21
Chapter 9 — Water Quality Impact Assessment of Flood Management Projects 22
APPENDICES
Appendix A — Locations of City -Owned Buildings, Facilities and Parks
Appendix B — Model Best Management Practices (BMPs) for Sediment and
Erosion Control —Specifications and Details
Dust Control B-1
Mulching .B-3
Seeding B-5
Sodding B-8
Gravel Bags .B-9
Erosion Control Blankets .B-10
Bonded Fiber Matrix .B-12
Soil Binders B-13
Fiber Rolls and Filter Rolls B-14
Silt Fence B-16
Rock Outlet B-17
Inlet Protection — Block & Gravel .B-18
Inlet Protection — Fabric Drop B-19
Inlet Protection — Sod Filter B-20
Temporary Slope Drain ..B-21
Stream Bank Protection .B-23
Check Dam B-25
Diversion — Ridge & Channel .B-26
Grass Lined Channel B-27
Washdown Station B-29
Appendix C — Corps of Engineers 404 Permit & MDNR 401 Certification
Chapter 1— Program Administration
A. Introduction
The Missouri Department of Natural Resources (MoDNR) issued Phase II Storm -Water Permit MO -R040005 to the
City of Webster Groves and 60 other co-permitees in St. Louis County, effective March 10, 2003. The area served
by the 61 co-permittees is collectively known as the St. Louis Metropolitan Small MS4. One of the minimum
control measures in the Permit that must be addressed by the co-permittees includes pollution prevention and good
housekeeping for municipal operations. Specifically, the Permit requires each co-permittee to "develop and
implement an operation and maintenance program that includes a training component and has the ultimate goal of
preventing or reducing pollutant runoff from municipal operations".
This document represents the City of Webster Groves' adoption of a model program tailored to specifically meet
the City of Webster Groves' needs and goals. This program impacts all facets of municipal operations. It is the
City of Webster Groves intent to adhere to the policies and procedures stated herein in order to prevent pollution, to
safeguard the environment for the health and benefit of all Webster Groves employees, residents and visitors and to
serve as a model for the entire regulated area. Where the municipal operations described in this manual are
contracted, rather than performed by municipal employees, the same requirements will be imposed to the maximum
extent practicable on the contractor through purchasing or contract mechanisms by including these requirements in
the scope of work or job/service specifications. Contractors will be required to obtain all applicable
local/state/federal environmental permits.
B. Policies
The City of Webster Groves will seek to purchase recycled products, janitorial and other products of lower toxicity
when deemed practical and substantially equivalent to the non -recycled products. Utilization of best management
practices to prevent pollution have been adopted by the City of Webster Groves.
C. Organization of Manual
The SWMP prepared for St. Louis County contains a detailed listing of Best Management Practices (BMPs)
elements that were to be considered when developing a model operation and maintenance program for the 61 co-
permittees. The City of Webster Groves has incorporated all applicable BMPs from all Chapters into procedures
that apply to the facilities and employees of the City and the purpose of this manual is to help ensure that
employees are made aware of all applicable BMPs.
D. Administration
The responsible party for administration of the Operation and Maintenance (0 & M) program shall be the Director
of Public Works. The Director shall ensure that the program as it affects maintenance operations of the City is
kept up to date and that the employees are trained on the procedures implementing the program.
The City of Webster Groves will train all staff associated with activities that can impact pollution in storm water
runoff. Each chapter will identify the staff positions that are subject to training on that particular chapter.
Employees will receive general storm water pollution prevention training by the Missouri Department of Natural
Resources, Environmental Assistance Office or others. Upon implementation of specific procedures, management
will review the new procedures that incorporate storm water BMPs, proper waste management and applicable
permit requirements with all employees affected. New employees will be trained on applicable procedures within
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1
the first three months of employment. Contractors working for the municipality and implementing BMPs for
municipal work, as described in Section A, must also train their employees on applicable BMPs before work
begins. To maintain proficiency, a schedule of periodic retraining will be implemented, or provisions made for an
employee awareness campaign to ensure employees remain aware of the BMPs and proper waste management.
Records documenting the training of employees and contractors will be maintained in separate files in the Public
Works and Parks and Recreation Departments.
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Chapter 2 — General Housekeeping, Operation and Maintenance
A. Description of Activities
Municipal operations include a variety of activities conducted to maintain City owned property and facilities. This
Chapter will cover those activities that are not specifically covered under subsequent chapters of this document.
This Chapter covers custodial and building maintenance activities, material management and storage, safe material
substitutions, spill plans, establishment of general O&M procedures, scheduling, record keeping and housekeeping
practices in general.
This chapter also covers general municipal housekeeping issues, which include illegal dumping, littering, pet
wastes, trash storage and recycling.
B. Locations
See Appendix A for the location of City -owned buildings, facilities and parks.
C. Responsible Parties
City Hall, Firehouse No. 2 and the City Service Center are the responsibility of the Director of Public Works and
actively managed by the Street Superintendent.
Director of Public Works 314-963-5315
Street Superintendent 314-963-5439
The Recreation Complex, and all City Parks are the responsibility of the Director of Parks and Recreation. The
Recreation Complex is managed by the Facility Manager and the City parks are managed by the Parks Manager.
Director of Parks and Recreation 314-963-5634
Parks Manager 314-963-5438
Facility Manager 314-963-5699
D. Materials/Supplies Acquisition, Storage and Usage
1. City Hall Complex: Material/supply needs for general housekeeping and maintenance are determined by the
Building Maintenance Mechanic and Custodian.
Material
Storage Quantity
Used Within
Storage Location
Various Cleaning Supplies
30 gals
4 mos.
Custodian's Storage Room
Latex Paint
5 gals
6 mos.
Building Maintenance
Storage Room
Aerosol Cans
As Needed
6 mos.
Building Maintenace and
Custodian's Storage
Fluorescent Lamps
50
6 mos.
Building Maintenance
Storage Room
Light Ballasts
4
6 mos.
Building Mainteance
Storage Room
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2. Service Center: Material/supply needs are determined by the Street Superintendent and Parks Manager.
Material/supplies used in vehicle/equipment material and repair operations are listed in Chapter 3.
Materials/supplies used in roadwaylbride maintenance are listed in Chapter 6.
Material
Storage Quantity
Used Within
Storage Location
Various Cleaning Supplies
10 gals
4 mos.
Custodian's Storage Room
Latex Paint
2 gals
6 mos.
Material Storage Room
Aerosol Cans
As Needed
6 mos.
Parts and Materials
Storage Rooms
Fluorescent Lamps
10
6 mos.
Basement
3. Recreation Complex: Material/supply needs are determined by the Facility Manager. Materials/supplies used in
field maintenance are listed in Chapter 7.
Material
Storage Quantity
Used Within
Storage Location
Various Cleaning Supplies
30 gals
4 mos.
Storage Room
Latex Paint
10 gals
6 mos.
Storage Room
Aerosol Cans
As Needed
6 mos.
Storage Room
Fluorescent Lamps
50
6 mos.
Storage Room
Swimming Pool Chemicals
100 gals
1 month
Chemical Room
4. Firehouse #2
Material
Storage Quantity
Used Within
Storage Location
Various Cleaning Supplies
2 gals
4 mos.
Stora e Room
E. Waste Generation, Storage, Disposal and Recycling
1. City Hall Complex: Standard office waste is generated along with waste from custodial operations. A fountain,
with filters, located the front of the building is backwashed on a continuous basis. Wastes from building and office
maintenance activities are also indicated in this list.
Waste
Storage Capacity
Location
Method of
Disposal
Contractor
Frequency
Standard Office
Waste
White Paper,
Cardboard, and
Aluminum Cans
1 4 cu. yd
dumpster
6 - 96 gal
containers
Parking Lot
Parking Lot
Landfill
Single Stream
Recycling
Waste Hauler
Waste Hauler
3 x per week
weekly
Custodial Waste
N/A
N/A
Down Drain
N/A
Daily
Lamp Ballasts
Box
Store Room
Landfill
Waste Hauler
As Needed
Fluorescent Lam ps
Box
Store Room
Landfill
Waste Hauler
Quarterly
Computer
Monitors, CPUs
Box
PC Room
Recycle
Recycler
As Needed
Back Wash Water
from Fountain
N/A
N/A
Discharged to
Sanitary Sewer
Building
Maintenance
Mechanic
Continuous
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2. Service Center
Waste
Storage Capacity
Location
Method of
Disposal
Contractor
Frequency
Standard Office
Waste
1 - 20 cu. yd.
dumpster
Yard
Landfill
Waste Hauler
Weekly
Custodial Waste
N/A
N/A
down drain
N/A
Daily
Lamp Ballasts
Box
Basement
Landfill
Waste Hauler
As Needed
Fluorescent
Lamps
Box
Basement
Recycle
Grainger
Semi-Annauly
Vegetative Waste
1 - 20 cu. yd.
dumpster
Yard
Recycle
Waste Hauler
Weekly
3. Recreation Complex
Waste
Storage Capacity
Location
Method of
Disposal
Contractor
Frequency
Standard Office
Waste
Custodial Waste
2 - 6 cu. Yd
dumpsters
N/A
Parking Lot
N/A
Landfill
Down Drain
Waste Hauler
N/A
3 x per Week
Daily
Lamp Ballasts
Box
Store Room
Landfill
Waste Hauler
As Needed
Fluorescent
Lamps
Box
Store Room
Recycle
Voss Lighting
As Needed
Paper and
Aluminum Cans
6 cu. yd.
Rear Parking Lot
Recycle
Waste Hauler
Weekly
4. Firehouse No. 2
Waste
Storage Capacity
Location
Method of
Disposal
Contractor
Frequency
Standard Office
Waste
Custodial Waste
1 - 96 gal.
container
N/A
Parking Lot
N/A
Landfill
Down Drain
Waste Hauler
N/A
Weekly
Daily
F Best Management Practices (BMP)
Facilities
• Pool drainage and filter backwash water from chlorinated swimming pools at the Recreation Center.
• Any discharge to surface water of pool, or backwash water from pools must be dechlorinated prior to
discharging into storm sewer system under conditions of an NPDES permit obtained by the facility. The
NPDES permit requires ceasing chlorination 7 days prior to discharge or using chemical dechlorination.
These discharges to surface water must be approved under local building code and not create a nuisance to
adjoining property.
• Avoid using copper or silver -containing algaecides in pools and fountains.
• Ensure grease traps and oil/water separators in kitchens and food service areas are maintained. Avoid
sanitary sewer grease -blockage by regularly pumping out traps and separators.
• Maintain site plumbing plans showing sanitary and storm sewer connections. Ensure wastewater is
discharged only to the sanitary sewer, and storm water to the storm sewer. Label storm drain inlets to
ensure they are only used for storm water drainage.
• Minimize the use of pesticides through an Integrated Pest Management Program. An IPM Program uses
monitoring of pest populations compared to an action threshold, and then choosing the proper tactics, using
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non chemical pest control practices, such as mechanical and biological controls, when possible, or less
toxic products when needed.
• Minimize the use of pesticides through an Integrated Pest Management Program. An 1PM Program uses
monitoring of pest populations compared to an action threshold, and then choosing the proper tactics, using
non chemical pest control practices, such as mechanical and biological controls, when possible, or less
toxic products when needed.
• Reduce the risk of West Nile Virus by reducing stagnant water (mosquito breeding grounds) caused by
cans, containers and tires present in litter and junk piles. Keeping storm water drainage and drains clean
will reduce conditions suitable for mosquito breeding. (More information found at
ipm.missouri.edu/ipmresources.htm.)
• Minimize the use of herbicides through an Integrated Pest Management Program for weed control. With
turf grass, prevention of weed infestation begins with practices to promote healthy grass through proper
planting, watering, fertilizing, mowing, soil aeration, and thatch control. Refer to MU Extension
Publication IPM1009 at http://muextension.missouri.edu/xplor/agguides/pests/ipm1009.htm See
Chapter 7 for additional BMPs.)
• Maintain filter and oil waste separator at Service Center's enclosed Truck Wash. (See Chapter 4 for
additional BMPs.)
Material Management
• Develop a policy to purchase recycled products or products with high post -consumer waste content
whenever practical.
• Waste Hauling contract provides for recycling and no co -mingling of recyclable material with other
refuse.(Residential solid waste collection, recyyclin2 and disposal, Contract 05PW09)
• Develop policies for the purchasing of environmentally preferred products whenever practical
http://yosemitel.epa.gov/oppt/eppstand2.nsf/
• Place recycling containers and trash containers, at all City of Webster Groves facilities. Provide lids for the
containers to keep rain out. Do not dispose of liquid waste in trash containers.
• Inspect facilities on a regular basis and clean up as needed.
• Cover outdoor material stockpiles at permanent locations as well as job sites to prevent contamination of
storm water runoff.
• Provide a berm around stockpiles that can not be covered to contain storm water runoff.
• Combustible products, chemicals, hazardous, and toxic materials should be properly labeled to ensure
proper storage, handling, and disposal.
• Develop written "Spill Response Procedures", and provide periodic training for employees to enable them
to stop the spills at the source and contain the spilled material. Keep material safety data sheets (MSDs) for
chemicals onsite, for information on reportable spill quantities, proper handling, and health and safety
issues. Provide training on hazards from a MSDS, minor spills can be addressed by employees, but large
spills may require evacuation and contacting emergency responders.
• Collect and recycle, to the maximum extent practicable, wastes generated by municipal operations. (See the
policy in Appendix 2-F1.)
• Provide for the proper disposal of all wastes generated or collected in the course of municipal operations, in
accordance with all applicable local, state and federal laws.
• Ensure that the collection frequency of trash containers is appropriate to avoid overflows.
• Petroleum products, fuels, chemicals, hazardous and toxic materials, and all wastes should be stored and
handled with appropriate safeguards to prevent contamination of storm water from drips and spillage from
the transfer of materials (for example, cover storage containers, use collection trays for drips, maintain spill
kits and floor drain plugs to contain spills, etc.). Liquid containers should be stored under roof; or if
outdoors, containers should be kept clean and sealed watertight.
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" P r e v e n t s p i l l s o f h a z a r d o u s m a t e r i a l s b y s e l e c t i n g s t o r a g e a r e a s t h a t a v o i d t r a f f i c t o m i n i m i z e a c c i d e n t a l
c o n t a c t , a n d s e l e c t a r e a s t h a t a r e a w a y f r o m s t o r m d r a i n i n l e t s t o m i n i m i z e t h e i m p a c t o f a s p i l l . S t o r a g e
a r e a s s h o u l d b e k e p t c l e a n a n d o r g a n i z e d .
" M a i n t a i n a n d p o s t a l i s t o f e m e r g e n c y c o n t a c t n u m b e r s f o r s p i l l r e p o r t i n g a n d s p i l l c l e a n - u p c o n t r a c t o r
r e s p o n s e , i n c l u d i n g C i t y o f W e b s t e r G r o v e s F i r e D e p a r t m e n t ( 9 1 1 ) , M i s s o u r i D e p a r t m e n t o f N a t u r a l
R e s o u r c e s ( M D N R ) 5 7 3 - 6 3 4 - 2 4 3 6 , N a t i o n a l R e s p o n s e C e n t e r 8 0 0 - 4 2 4 - 8 8 0 2 , a n d f o r r e l e a s e s t o t h e
s e w e r M S D 3 1 4 - 7 6 8 - 6 2 6 0 . R e p o r t a b l e q u a n t i t i e s ( R Q ) f o r c h e m i c a l s a r e l i s t e d o n t h e M S D s , a n d
p e t r o l e u m R Q i n c l u d e : a n y a m o u n t r e l e a s e d t o a s t o r m s e w e r o r w a t e r w a y c a u s i n g a s h e e n , 2 5 g a l l o n s f r o m
a n u n d e r g r o u n d t a n k , a n d 5 0 g a l l o n s f r o m a l l o t h e r s o u r c e s .
" P r e p a r e f o r a p p r o p r i a t e l y h a n d l i n g t h e c l e a n u p o f a s p i l l e d m a t e r i a l a n d d i s p o s a l o f w a s t e . D o n o t h o s e
d o w n s p i l l s t o t h e s t o r m s e w e r s y s t e m . C l e a n u p s p i l l s w i t h d r y m e t h o d s , u s i n g a b s o r b e n t t o p i c k u p f l u i d s .
" E s t a b l i s h m a t e r i a l s m a n a g e m e n t a n d i n v e n t o r y c o n t r o l s a t a l l m u n i c i p a l f a c i l i t i e s . I n c l u d e t h e p r o p e r
i d e n t i f i c a t i o n o f a l l h a z a r d o u s a n d n o n - h a z a r d o u s s u b s t a n c e s a n d a c c u r a t e l a b e l i n g o f a l l c o n t a i n e r s .
P e r f o r m r e g u l a r i n s p e c t i o n s a n d i n v e n t o r y o f s t o r a g e a n d u s e a r e a s .
" E s t a b l i s h a l o n g t e r m i n s p e c t i o n p r o c e d u r e a n d p e r f o r m g e n e r a l h o u s e k e e p i n s p e c t i o n s o n a m o n t h l y b a s i s
w i t h r e c o r d s o f t h e i n s p e c t i o n s w i t h d a t e s a n d t i m e s .
C o m m u n i t y
" E n f o r c e o r d i n a n c e s w h i c h r e g u l a t e s i z e , t y p e s , c o v e r s a n d w a t e r - t i g h t n e s s f o r r e s i d e n t i a l , c o m m e r c i a l a n d
i n d u s t r i a l g e n e r a t o r s o f r e f u s e , y a r d w a s t e a n d r e c y c l i n g s e e C h a p t e r 3 4 o f t h e A d m i n i s t r a t i v e C o d e o f
W e b s t e r G r o v e s .
" P r o v i d e t r a s h a n d r e c y c l i n g r e c e p t a c l e s a t m u n i c i p a l a n d p u b l i c a r e a s a n d p r o v i d e s c h e d u l e d p i c k - u p s .
" D e v e l o p a n d e n f o r c e m u n i c i p a l o r d i n a n c e s a g a i n s t i l l e g a l d i s c h a r g e t o s t o r m w a t e r f r o m s o u r c e s s u c h a s
f a i l i n g s e p t i c t a n k s , s e p t i c t a n k s d i s c h a r g i n g t o s t o r m w a t e r .
" E n f o r c e o r d i n a n c e a g a i n s t i l l e g a l d u m p i n g a n d l i t t e r i n g , p r o v i d i n g f o r c o r r e c t i v e a c t i o n , e n f o r c e m e n t a n d
p e n a l t i e s . ( O r d i n a n c e N o . 8 4 9 4 . )
" E n f o r c e o r d i n a n c e r e q u i r i n g p e t o w n e r s , p r o p e r t y o w n e r s , a n d a n i m a l b o a r d i n g f a c i l i t i e s t o c l e a n u p w a s t e s
f r o m t h e i r p e t s a n d o t h e r a n i m a l s . ( O r d i n a n c e N o . 8 4 9 8 . )
" P r o v i d e p e t w a s t e s c o o p d i s p e n s e r s a n d s i g n a g e i n p a r k s a n d o t h e r p u b l i c a r e a s f r e q u e n t e d b y p e t w a l k e r s
t o p r o m o t e t h e p r o p e r d i s p o s a l o f p e t w a s t e a n d n o t i f y t h e p u b l i c o f o r d i n a n c e r e q u i r e m e n t s .
" P r o m o t e a n d a s s i s t i n n e i g h b o r h o o d a n d s t r e a m c l e a n - u p a c t i v i t i e s .
T r a i n i n g
A l l S t r e e t a n d P a r k s D i v i s i o n e m p l o y e e s i n v o l v e d i n m a i n t e n a n c e o p e r a t i o n s , c o n s t r u c t i o n , p u r c h a s i n g , f a c i l i t y o r
s i t e d e s i g n , o r b u i l d i n g o r f a c i l i t y m a n a g e m e n t w i l l b e t r a i n e d o n t h i s c h a p t e r i n c l u d i n g t h e f o l l o w i n g e m p l o y e e
c l a s s i f i c a t i o n s :
" P u b l i c W o r k s D e p a r t m e n t - - C i v i l E n g i n e e r , S t r e e t S u p e r i n t e n d e n t , M a i n t e n a n c e W o r k e r s , E q u i p m e n t
M e c h a n i c s a n d B u i l d i n g M a i n t e n a n c e M e c h a n i c .
" P a r k s a n d R e c r e a t i o n s D e p a r t m e n t F a c i l i t i e s M a n a g e r , P a r k s M a n a g e r , P a r k s W o r k e r s , B u i l d i n g
M a i n t e n a n c e M e c h a n i c
T r a i n i n g i n p o l l u t i o n p r e v e n t i o n t e c h n i q u e s f o r t h e a c t i v i t i e s l i s t e d i n S e c t i o n A w i l l i n c l u d e i n - h o u s e t r a i n i n g a s
w e l l a s a t t e n d a n c e a t r e g i o n a l t r a i n i n g a c t i v i t i e s .
U p d a t e d 3 / 3 1 / 1 6
7
Chapter 3 — Vehicle/Equipment Repair & Maintenance Operation
A. Description of Activities
The fleet maintenance facility(s) are responsible for the maintenance and repair of equipment and vehicles ranging
from chain saws, mowers, zambonies and light vehicles to loaders and dump trucks. Preventative maintenance
functions include oil and filter changes, tune-ups and tire rotations. Repairs include, but are not limited to, brakes,
electrical, welding, suspension and axle repairs. Major transmission repair or replacement, glass replacement,
painting and body work are performed by outside contractors
B. Facility Locations
The Garage is located on the 4.8 acre City Service Center at 145 Waymire Avenue. This facility houses the Street
Division of the Public Works Department and the Parks Division of the Parks and Recreation Department. This
location has three maintenance bays equipped with one stationary lift and one mobile lift, a vehicle and equipment
wash bay and a sign shop. Floor drains, for the maintenance bays and wash bay are connected to a sand filter and
oil -water seperator. All floor drains are connected to the sanitary sewer system. Bulk oil, grease, hydraulic fluid,
and waste oil recovery system are stored in the south maintenance bay. All bottled oils and spray chemicals are
stored in a storage room. There is a domed salt storage building with a capacity of 3,500 tons on site, a 3,000 gal
calcium chloride tank is located adjacent to the salt dome, and covered storage is provided for dirt, rock, mulch.
C. Responsible Parties
• The Street Superintendent oversees all aspects of fleet administration and maintenance. The Equipment
Mechanic II is responsible for the day-to-day operations of the Garage. The Garage has three full time
employees, one lead equipment mechanic and two support equipment mechanics.
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D. Materials/Supplies Acquisition. Storage and Usage
Materials/supplies for the maintenance Garage are ordered through the Garage and delivered to same. The
following materials and quantities are typically kept on hand for use by the maintenance garage.
Brake Silence
12 - 14oz Cans
1 Year
Store Roo m' Fire Cabinet
Chain Lube
12 - 12.5 oz Cans
1 Year
Store Room'Fire Cabinet
Battery Care
12 - 16oz Cans
2 Years
Store Roo m' Fire Cabinet
Injecter Cleaner
8 - 12oz Cans
1 Year
Store Room(Fire Cabinet
Fast Gasket
16 - 12oz Cans
1 Year
Store Room/Fire Cabinet
Butane Refills
12- 5oz Cans
2 Years
Store Room/Fire Cabinet
Starting R u id
6- 11 oz Ca ns
2 Years
Store Roo rn/Fire Cabinet
R134A Refrigerant
_ 30 Pounds
6 Months
Cylinder Tank
R-12 Refrigerant
15 Pounds
1 Year
Cylinder Tank
1 5W40 Motor Oil
200 Gallons
6 Months
Storage Tanks
Hydraulic Fluid
110 Gallons
6 Months
Storage Tanks
Transmission Fluid
55 Galbns
1 Year
Storage Tanks
Antifreeze
Antifreeze
110 Gallons
60 - 1 Gallon Plastic
Bottles
1 Year
1 Year
Storage Tanks
Store Room
Windshield Washer
Fluid
110 Gallons
6 Months
Store Room
Unleaded Fuel
10,000 Gallons
6 Months
Inground Tank
Diesel Fuel
10,000 Gallons
6 Months
Inground Tank
5W30 Motor Oil
50 Gallons
_ 6 Months
Storage Tanks
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E. Waste Generation, Storage, Disposal, Recycling
Waste
Max. storage
capacity
Storage
Location
Method of
Disposal
Contractor
Frequency
Used Motor Oil,
Hydraulic and
Transmission
Fluid
1000 Gallon.
Bulk Tank at
Garage
Recycle
Licensed Oil
Recycler
Quarterly or As
Needed
Used Oil Filters
10
Drain 24 hours
at Garage
Trash Can
Trash Hauler
As Generated
Equipment
Batteries
20
Garage
Return for
Recycling
Battery Vendor
As Needed
Refrigerant
Tested
Container
Capacity
Garage
Recover and
Reuse
Onsite or EPA
Registered Co,
As Needed
Work Brake
Pads/Shoes
6 Sets
Storage Room
Trash Can
Trash Hauler
As Needed
Used Antifreeze
55 Gallons
Garage
Return for
Recycling
Licensed Oil
Recycler
As Generated
Tires
20
Tire Room
Returned for
Recycling or
Recapping
Permitted
Waste Tire
Hauler
As Needed
Shop Towels
250
Labeled
Container in
Garage
Recyle
Towel Vendor
As Generated
Organic Solvent
for Parts
Cleaning
21 Gallons
Garage
Return for
Recycling
Licensed Oil
Recycler
As Needed
Scrap Material
Yard
Sale
Metals Recycler
As Needed
F. Best Management Practices (BMP)
Operations
• Continue preventative maintenance program to minimize fluid leaks and equipment failures. Inspect vehicles
and equipment frequently for leaks, collecting leaks with pans or absorbent and repairing leaks.
• All routine maintenance shall be performed in the maintenance garages. When outside maintenance is
performed any spillage shall be promptly contained and cleaned up.
• Environmentally friendly, non -hazardous, products shall be used when possible. The use of chlorinated organic
solvents shall be avoided.
• Flammable liquids shall be kept in vented fire -rated storage cabinets.
• All material and waste containers shall be clearly marked and properly identify contents.
• Keep MSDS at proper locations and in one master file.
• Tops of containers shall have absorbent mats and shall be free of standing liquid. Stored containers shall be
kept sealed.
• Waste pickups shall be recorded and maintained in a file.
• Label drain pans for specific fluids. Use pans under vehicles and equipment with fluid leaks. Drip pans shall
be used when making and breaking fluid containing hose and piping connections.
• Used oil filters shall be gravity drained for 24 hours.
Updated 3/31/16
10
" S t o r e b a t t e r i e s , e t c . h a v i n g s p i l l / l e a k p o t e n t i a l i n d o o r s . P r o v i d e s e c o n d a r y c o n t a i n m e n t f o r b a t t e r i e s a n d o i l
w h e n p o s s i b l e .
" N e u t r a l i z e r a n d a b s o r b e n t s h a l l b e k e p t i n t h e a r e a o f n e w a n d u s e d b a t t e r i e s .
" A l l f l o o r s s h a l l b e k e p t c l e a n o f o i l a n d g r e a s e .
" A l l s u p p l y m a t e r i a l a n d w a s t e c o n t a i n e r s s h a l l b e s t o r e d u n d e r c o v e r t o p r e v e n t c o n t a c t w i t h r a i n f a l l ; o r w h e n
u n c o v e r e d , c o n t a i n e r s s h a l l b e c l e a n a n d s e a l e d .
" W a s t e o i l s , f i l t e r s , a n t i f r e e z e a n d o t h e r w a s t e s s h a l l b e c o l l e c t e d i n d e s i g n a t e d , l a b e l e d c o n t a i n e r s a n d r e c y c l e d
t o t h e m a x i m u m e x t e n t p r a c t i c a b l e .
" U s e d w h e e l w e i g h t s s h a l l b e k e p t i n a c o n t a i n e r m a r k e d " s c r a p l e a d " .
" E n v i r o n m e n t a l l y s a f e d e t e r g e n t s s h a l l b e u s e d i n s t e a d o f c a u s t i c c l e a n i n g s o l u t i o n s .
S p i l l P r e v e n t i o n
" P r o v i d e s p i l l k i t s a t g a s p u m p s w i t h s i g n s i n d i c a t i n g t h e i r l o c a t i o n a n d p o s t " N o T o p p i n g O f f ' s i g n s
" P e r i o d i c a l l y c h e c k t a n k s a n d c o n t a i n e r s f o r p h y s i c a l i n t e g r i t y .
" E q u i p m e n t s h a l l b e m a i n t a i n e d a n d t e s t e d t o e n s u r e t h e p r o p e r o p e r a t i o n o f a u t o m a t i c s h u t o f f d e v i c e s o n
p u m p s , o v e r f i l l p r o t e c t i o n , a n d s p i l l b u c k e t s o n t a n k s .
" E m e r g e n c y p h o n e n u m b e r s s h a l l b e c l e a r l y p o s t e d i n t h e G a r a g e .
F a c i l i t y
" " N o S m o k i n g " s i g n s s h a l l b e p o s t e d n e a r a l l o u t d o o r s t o r e d h a z a r d o u s w a s t e a n d f l a m m a b l e m a t e r i a l s .
T r a i n i n g :
" P u b l i c w o r k s m a i n t e n a n c e s t a f f s h a l l b e p r o v i d e d s a f e t y t r a i n i n g a n d t r a i n i n g o n w r i t t e n p r o c e d u r e s p e r t a i n i n g
t o g e n e r a l h o u s e k e e p i n g .
" S t r e e t S u p e r i n t e n d e n t , L e a d G a r a g e M e c h a n i c , a n d S e n i o r M a i n t e n a n c e W o r k e r s s h a l l r e c e i v e e n v i r o n m e n t a l
a n d H A Z M A T t r a i n i n g .
U p d a t e d 3 / 3 1 / 1 6
1 1
Chapter 4 — Vehicles/Equipment Washing
A. Description of Activities
The City of Webster Groves washes all equipment and larger vehicles at a wash bay facility designed according to
this chapter. All passenger vehicles are taken to commercial facilities when washing is required.
B. Locations
The City of Webster Groves wash bay facilities are located at the following location: Service Center, 145 Waymire
Avenue.
C. Responsible Parties
Each department head is responsible for ensuring that passenger vehicles are taken off -site to approved commercial
facilities for washing. The Street Superintendent and Park Manager are responsible for ensure that washing of
equipment and larger vehicles is done in the location specified in Section B.
D. Materials/Supplies Acquisition, Storage and Usage
The wash soap to be used in the truck wash is Super Duty Vehicle Cleaner KD240 manufactured by Karcher
Commercial Products.
E. Wash Bay Waste Disposal
Wash water from vehicle and equipment washing must be disposed of in the MSD sanitary sewer, with
pretreatment using a sediment/oil trap. The accumulated solids in the sediment/oil trap must be pumped out and
properly disposed of, such as at a wastewater treatment plant by an MSD approved waste hauler. If floating oils
and grease accumulate in the sediment/oil trap, the contents must be disposed of by a permitted waste hauler at a
commercial facility able to handle oily waste.
F. Best Management Practices (BMPs)
• All passenger vehicles shall be taken to commercial facilities when washing is needed.
• Commercial facilities to be used are verified to be in compliance with MSD sewer discharge requirements.
Facilities must discharge wastewater to the sanitary sewer system, and wash bays must be covered to prevent
storm water in the sanitary system.
• The Service Center wash bay is designed to collect wash water, pretreat with a sediment/oil trap (interceptor),
and discharge to the sanitary sewer system. The trap must be pumped quarterly, or as needed.
• The wash bay is enclosed to prevent storm water runoff from discharging to the sanitary system.
• Job -site mud removal shall be performed without detergent in a contained, permeable (gravel) area with wash
water infiltrating into soil or gravel.
G. Training
Employees responsible for operating fleet vehicles and equipment will be made aware of BMPs regarding washing,
and the proper, designated locations for washing.
Updated 3/31/16
12
Chapter 5 - Facility Repair, Remodeling, and Construction
A. Description of Activities
On an as needed basis, City personnel perform minor renovations and repairs and small capital improvements on
city facilities such as painting, door or window replacement, etc.. Major projects are usually contracted out to firms
that specialize in that type of work and contractors are required to have a responsible employee trained in storm
water control for each project.
B. Locations
The City Hall Complex, the Service Center and the Recreation Complex contain shops and materials storage areas
for minor work.
C. Responsible Parties
The Directors of Public Works and Parks and Recreation are the responsible parties that ensure that the work will
be performed without subjecting the storm water system to any new contaminants. The Directors are also
responsible for the construction practices of the contractors that work on municipal facilities.
D. Materials/Supplies Acquisition, Storage and Usage
Materials are purchased on an as needed basis and in quantities expected to be used in the process of completing the
project. The type of materials will very depending on the project. Materials are stored inside or under cover so that
they are protected from rain and runoff
Routinely stocked materials are identified in the following table
Material
Maximum quantity kept on site
Storage Location
Paint (Latex Base)
5 Gallon
Service Center
Concrete Patching Material
1Gallon
City Hall
Lumber
30 Lineal Feet
Service Center
E. Waste Generation, Storage and Disposal
The type and amount of waste generated varies with the nature of the job. Typically, wastes consist of small
amounts of lumber scraps, empty paint cans, empty concrete bags, etc. that are disposed of in designed areas.
Waste from cleanup activities shall not be allowed to run into the street, storm drains, or streams.
F. _ Best Management Practices (BMP)
Facility Design
• Consider designing facilities for "Low Impact Development" to reduce the volume and rate of storm water
runoff from impervious areas to improve water quality. Refer to information on Low Impact Development
from EPA's website at:: http://www.epa.gov/owowwtrl/NPS/lid/lidlit.html for more information about Low
Impact Development methods.
Updated 3/31/16
13
" I n d e s i g n i n g s t o r m w a t e r d r a i n a g e f a c i l i t i e s , c o n s i d e r t h e f o l l o w i n g B M P s , i n a c c o r d a n c e w i t h M S D ' s s t o r m
w a t e r d r a i n a g e f a c i l i t y d e s i g n r e g u l a t i o n s , t o i m p r o v e t h e w a t e r q u a l i t y o f s i t e d r a i n a g e : w e t d e t e n t i o n p o n d s ,
w e t l a n d s , s t r u c t u r a l f i l t e r s y s t e m s , g r a s s s w a l e s , v e g e t a t i v e f i l t e r s t r i p s , a n d r i p a r i a n b u f f e r s a l o n g s t r e a m s .
M S D ' s d e s i g n r e g u l a t i o n s a r e c o n t a i n e d t h e " R u l e s a n d R e g u l a t i o n s a n d E n g i n e e r i n g D e s i g n R e q u i r e m e n t s f o r
S a n i t a r y S e w a g e a n d S t o r m w a t e r D r a i n a g e f a c i l i t i e s " . F a c t s h e e t s o n s t o r m w a t e r m a n a g e m e n t p r a c t i c e s a r e
a v a i l a b l e f r o m t h e S t o r m W a t e r M a n a g e r ' s R e s o u r c e C e n t e r a t t h e f o l l o w i n g w e b s i t e :
h t t p : / / w w w . s t o r m w a t e r c e n t e r . n e t
" C a r e f u l l y d e s i g n a n d i n s t a l l p l u m b i n g a n d s t o r m w a t e r s y s t e m s t o c o d e , e l i m i n a t i n g c r o s s - c o n n e c t i o n s b e t w e e n
s a n i t a r y a n d s t o r m d r a i n s y s t e m s .
" D e s i g n m a t e r i a l s s t o r a g e a n d h a n d l i n g a r e a s t o a v o i d r a i n a n d s t o r m w a t e r r u n o f f c o n t a c t i n g s t o r e d m a t e r i a l .
" C o n s i d e r l a n d s c a p i n g d e s i g n t h a t u s e s n a t i v e v e g e t a t i o n t o r e d u c e t h e n e e d f o r i r r i g a t i o n , f e r t i l i z e r a n d
p e s t i c i d e .
L a n d D i s t u r b a n c e
" C o m p l y w i t h C i t y o f W e b s t e r G r o v e s l a n d d i s t u r b a n c e o r d i n a n c e ( O r d i n a n c e N o . 8 5 9 1 ) . F o r p r o j e c t s l e s s t h a n
t h e l a n d d i s t u r b a n c e p r o g r a m t h r e s h o l d s , p r e v e n t e r o s i o n o f s o i l f r o m b a r e g r o u n d a t t h e s i t e b y e m p l o y i n g
e r o s i o n a n d s e d i m e n t c o n t r o l B M P s , a s d e f i n e d a n d s h o w n i n A p p e n d i x
" A l l c o n s t r u c t i o n o r m a i n t e n a n c e a c t i v i t i e s t h a t e x c a v a t e i n o r d i s c h a r g e a n y d r e d g e o r f i l l m a t e r i a l i n t o a " w a t e r
o f t h e U n i t e d S t a t e s " r e q u i r e s a C o r p s o f E n g i n e e r s 4 0 4 p e r m i t a n d a M D N R 4 0 1 w a t e r q u a l i t y c e r t i f i c a t i o n .
W a t e r s o f t h e U n i t e d S t a t e s i n c l u d e d i t c h e s , c r e e k s , r i v e r s , l a k e s , p o n d s a n d w e t l a n d s . S e e A p p e n d i x f o r a
s u m m a r y o f p e r m i t r e q u i r e m e n t s .
C o n s t r u c t i o n / R e m o d e l i n g
" P r o p e r l y s t o r e m a t e r i a l s a s f a r a w a y f r o m s t o r m i n l e t s a n d s t r e a m s a s p r a c t i c a l , a n d c o v e r s t o r e d m a t e r i a l s t o
a v o i d s t o r m w a t e r i m p a c t s .
" N e v e r c l e a n o u t o r w a s h o u t p a i n t o r c o n c r e t e m i x e r s i n t h e s t r e e t o r n e a r a g u t t e r , s t o r m d r a i n o r s t r e a m .
" S m a l l q u a n t i t i e s o f i n e r t d e m o t i o n w a s t e a n d c o n s t r u c t i o n s c r a p s s h a l l b e d i s p o s e d o f i n t h e d u m p s t e r s l o c a t e d
a t C i t y H a l l , t h e R e c r e a t i o n C e n t e r a n d t h e S e r v i c e C e n t e r . I f l a r g e r q u a n t i t i e s a r e g e n e r a t e d , a r r a n g e m e n t s
s h a l l b e m a d e w i t h a C i t y - c o n t r a c t e d h a u l e r f o r a s p e c i a l p i c k - u p .
" K e e p w o r k s i t e s c l e a n ; p i c k u p t r a s h t h a t c a n b e w i n d b l o w n d a i l y .
" W h e n s c r a p i n g o r w a s h i n g t o r e m o v e n o n - l e a d e d b a s e d p a i n t , c o l l e c t p a i n t c h i p s i n a t a r p f o r p r o p e r d i s p o s a l .
U s e w a t e r - b a s e d p a i n t i n s t e a d o f o i l - b a s e d p a i n t w h e n e v e r p o s s i b l e .
" E n s u r e t h a t f a c i l i t y p l u m b i n g c o n n e c t s a l l s a n i t a r y w a s t e w a t e r d i s c h a r g e s t o t h e s a n i t a r y s e w e r , a n d t h a t s t o r m
w a t e r i s s e n t t o t h e s t o r m s e w e r s y s t e m .
G . T r a i n i n g
A l l e m p l o y e e s i n v o l v e d i n f a c i l i t y c o n s t r u c t i o n , f a c i l i t y r e p a i r a n d r e m o d e l i n g a c t i v i t i e s w i l l b e t r a i n e d o n t h e
B M P s p r e s e n t e d i n t h i s c h a p t e r . P e r s o n n e l s h a l l b e t r a i n e d i n t h e i t e m s n o t e d b e l o w :
G e n e r a l h o u s e k e e p i n g
M a t e r i a l s t o r a g e , c l e a n u p , a n d d i s p o s a l
M a t e r i a l r e u s e a n d r e c y c l i n g
E q u i p m e n t c l e a n u p
L a n d d i s t u r b a n c e e r o s i o n c o n t r o l
U p d a t e d 3 / 3 1 / 1 6
1 4
Chapter 6 — Cleaning and Maintenance of
Roadways, Bridges and Parking Facilities
A. Description of Activities
The City of Webster Groves Department of Public Works is responsible for the maintenance and cleaning of all
public roads and parking facilities under their maintenance purview. Typical activities include, but may not be
limited to, street sweeping, resurfacing, sealing, patching, snow removal, and emergency response to spills or
accidents.
Street sweeping operations involve a self-contained and powered collection equipment utilizing a broom system.
This work is performed on a routine scheduled basis.
Patching operations involve the preparation of potholes and the fill of either hot mix or cold patch material.
Asphalt pavements are chipsealed on a seven year cycle.
The Department of Public Works Street Division plows and/or salts the roadways under its maintenance
jurisdiction, ten parking lots and one parking garage during winter ice and/or snow events. The Parks and
Recreation Department plows and/or salts parking lots of parks and the Recreation Center. Depending upon the
conditions, road salt is applied anywhere from 150 to 400 pounds per lane mile. Calcium chloride is added to the
road salt when temperatures fall below 20 degrees Fahrenheit.
B. Responsible Parties
The responsible parties involved in the cleaning and maintenance of streets and public parking lots and parking
garage are:
Director of Public Works - (314) 963-5315
Street Superintendent - (314) 963-5439
The responsible parties involved in the snow removal at parking lots at parks and the Recreation Center are:
Director of Parks and Recreation — (314) 963-5634
Parks Manager — (314) 963-5438
Facilities Manager — (314) 963-5699
C. Materials/Supplies Acquisition, Storage and Usage
Large quantities of materials are expended in the performance of work. Some material is purchased and used
immediately, while others are stockpiled. The City of Webster Groves works within the constraints of our budget
and weigh fiscal responsibility against the immediate and long term needs for the materials used and adjust our
purchasing accordingly.
Updated 3/31/16
15
Materials
Maximum Quantity
Kept on Hand
For Use Within
Storage Location
Road Salt
Up to 3,500 Tons
One Year
Service Center
Calcium Chloride
Cold Patch
Up to 3,000 Gallons
Up to 2 Tons
One Year
One Season
Service Center
Service Center
Hot Mix Asphalt
Purchased as Needed
Daily
N/A
Top Soil
Up to 20 Tons
One Season
Service Center
Aggregate (rock)
Up to 30 Tons
One Year
Service Center
Concrete ready mix
N/A
Daily
N/A
Concrete bag mix
50 Bags
One Year
Service Center
Striping Paint (Latex)
260 Gallons
One Year
Service Center
Concrete Sealing
Material
55 Gal Ions
One Year
Service Center
Crack Sealer
120 Gallons
One Year
Service Center
Brine Solution
2200 Gallons
3 Months
Service Center
D. Waste Generation, Storage, Disposal and Recycling
Various amounts of construction spoil and waste is generated during the performance of maintenance operations on
our City streets and parking lots. Recycling methods are employed if they are determined to be cost-effective;
however, in many instances, waste materials must be removed from the work site by various disposal methods.
Waste
Maximum Storage
Capacity
Storage Location
Method of Disposal
Frequency
Asphalt Millings
20 yds
Service Center
Landfill
As Needed
Concrete Rubble
Debris from street
sweeping and road
clean up
20 yds
50 yds
Service Center
Service Center
Landfill
Landfill
As Needed
As Needed
Trap Rock for chip
sealing
50 ton
Service Center
Reused
Annual
E. Best Management Practices
Maintenance
• If certain street maintenance activities are prone to produce pollutants that can be carried off with storm water
runoff, schedule these maintenance activities during times of dry weather if possible.
• All construction or maintenance activities that excavate in or discharge any dredge or fill material into a "water
of the United States", which includes ditches, creeks, rivers, lakes, ponds and wet lands, require a Corp of
Engineering 404 Permit and a MDNR 401 Water Quality Certification. See Appendix for a summary of
permit requirements.
• Capture scrapings, rust, dirt, paint drips, etc. from preparation and painting of bridges/structures/traffic control
devices. For bridges, the City shall use only certified inspectors to inspect for lead based paint on structures
older than 1978. Only state certified removal contractors for lead based paint abatement shall be used if
necessary.
• The City shall inspect bridges every two years and address problems that arise at that time.
Updated 3/31/16
16
" B l o c k s c u p p e r s a n d d r a i n s w h e n s e a l i n g b r i d g e d e c k s .
" F o r a s p h a l t o v e r l a y s , m i l l i n g a t t h e c u r b i s p e r f o r m e d t o m a i n t a i n s t o r m w a t e r d r a i n a g e c a p a c i t y o f t h e g u t t e r s
a n d i n l e t s .
" C o m p l y w i t h C i t y o f W e b s t e r G r o v e s L a n d D i s t u r b a n c e O r d i n a n c e r e l a t i v e t o c o n s t r u c t i o n s i t e e r o s i o n c o n t r o l
D e - I c i n g
" O n t h o s e t r u c k s t h a t a r e e q u i p p e d , u s e c a l i b r a t e d c h e m i c a l a p p l i c a t o r s f o r s a l t a n d c a l c i u m c h l o r i d e
a p p l i c a t i o n s .
" S e t s p r e a d e r s t o m i n i m i z e s a l t u s a g e w i t h o u t c o m p r o m i s i n g p u b l i c s a f e t y .
" D i s c o n t i n u e s a l t s p r e a d i n g w h e n t r u c k i s s t o p p e d .
" S a l t i s s t o r e d o n a n i m p e r v i o u s s u r f a c e a n d i s c o v e r e d .
" U s e r o a d w e a t h e r i n f o r m a t i o n s u c h a s w e a t h e r f o r e c a s t s , m e t e o r o l o g i c a l d a t a a n d t h e C i t y ' s p r i v a t e f o r e c a s t i n g
s e r v i c e t o m a x i m i z e t h e e f f i c i e n c y a n d e f f e c t i v e n e s s o f r e s o u r c e s .
C l e a n i n g
" C o n t i n u e r o u t i n e s c h e d u l e d s t r e e t s w e e p i n g t o r e m o v e d e b r i s a t f a c i l i t y p a r k i n g l o t s a n d p u b l i c s t r e e t s r o a d w a y s
w i t h i n t h e C i t y .
" D o n o t h o s e d o w n p a r k i n g l o t s i n a m a n n e r t h a t d i s c h a r g e s w a s h w a t e r t o t h e s t o r m s y s t e m u n t r e a t e d .
T r a i n i n g
" E m p l o y e e s i n v o l v e d i n s t r e e t a n d f a c i l i t i e s m a i n t e n a n c e a n d r e p a i r s h a l l b e t r a i n e d o n t h e B M P s i n t h i s c h a p t e r .
U p d a t e d 3 / 3 1 / 1 6
1 7
Chapter 7 - Maintenance of Parks,
Green Spaces, Trails and Landscaping
A. Description of Activities
The City of Webster Groves has 18 parks totaling 128 acres of land and approximately 5 miles of jogging trails.
The City of Webster Groves, Parks and Recreation Department, has responsibility for the development and
maintenance of recreational areas and green space within the City, including neighborhood and regional parks,
jogging paths, public facility landscaping and public right-of-way landscaping. The City promotes an
interconnected system of open space and trails that facilitates active and passive recreational opportunities for the
community.
The creation and design of parks and open space can assist in the management of storm water by providing a means
of absorbing water, storing, filtering and slowing its release to streams while preventing or reducing the chance of
flash flooding downstream.
Maintenance activities include mowing of grassy areas, pruning trees, removing fallen trees, mulching, emptying
trash cans, trail maintenance, cleaning restrooms and parking lot maintenance.
B. Locations
Park Name
Location
Acres
Barbre Park
411 N. Elm
3.00
Barnickle Park
849 - 850 N. Forest, 1101 N. Bompart
4.00
Blackburn Park
Deer Creek Park
421 Edgar Rd.
816 Eunice , 1018 Dutton
36.00
7.00
Gazebo Park
8180 N. Big Bend
0.33
Glen Park
112 - 126 E. Kirkham Ave.
3.00
Ivory Crockett Park
106 - 110 AI mentor
7.00
Lockwood Park
912 Newport Ave.
5.00
Lorraine Davis Park
700 Lorraine Davis, 137 Thornton
7.00
Margaret Atalanta Park
681 Atalanta
0.33
McKee Park
Memorial Park
176 Hammel
1 E. Glendale Ave.
0.25
19.50
Larson Park
520 W. Kirkham, 2 Denver PI., 518 - 520 Poplar
12.00
Plant Wildlife Refuge
150 Jefferson
3.00
Ruhe Park
.824 Old Elm Ln.
2.50
Shady Creek Nature Sanctuary
104 -112 W. Kirkham, 235 N. Elm
4.00
Southwest Park
1155 S. Rock Hill
12.40
Tuxedo Park
301 Glen
1.24
Sculpture Park
Gore and Kirkham
0.50
Green spaces are interlaced throughout the community and are maintained by the Parks Department and local
volunteers.
Updated 3/31/16
18
C. Responsible Parties
The Director of Parks and Recreation has authority over all parks. Parks are actively managed by the Parks
Manager. Volunteers donate their time to assist in Park Maintenance.
Updated 3/31/16
19
D. Materials/Supplies Acquisition, Storage and Usage
The following materials and quantities are stored at the City Service Center and typically kept on hand for
landscaping and park maintenance operations.
Material
Maximum Quantity
Kept on Hand
For Use Within
Storage Location
Comments
Mulch
80 Cu. Yds.
1 Season
Covered
Bin
Dirt
80 Cu. Yds.
1 Season
Covered
Bin
Wood Chips
80 Cu. Yds.
1 Season
Covered
Bin
Calcined Clay
80 Cu. Yds.
1 Season
Covered
Bags
Sand
10 Tons
1 Season
Yard
Bin
Herbicide (Round-
up)
8 Gallons
1 Season
Locked Storage
Controlled Access
Fertilizer
300 Bags
1 Season
Locked Storage
Controlled Access
Top Soil
80 Cu. Yds.
1 Season
Yard
Bin
E. Waste Generation, Storage, Disposal, Recycling
Wastes generated by landscaping and park maintenance operations are as follows
Waste
Maximum
Storage
Capacity
Storage
Location
Method of
Disposal
Contractor
Frequency
Wood, Brush,
Leaves, Grass
20 Cu. Yds.
Service Center
Recycled
Waste Hailer
Weekly
Trash
40 Cu. Yds.
Service Center
Dempster
Waste Hailer
Weekly
F. Best Management Practices (BMP)
Park Design and Siting
• Creating undeveloped, natural open space and preserving established trees and other natural vegetation,
particularly around natural drainage areas, such as creeks, is recommended. Tree buffers and tall grass filters
around streams improve water quality, slow run-off and prevent erosion. A minimum buffer of fifty (50) feet is
recommended.
• Avoid site development and placing structures in flood plains.
• Design park sites to preserve natural resources such as wetlands and existing natural drainage areas. Minimize
creek crossings and place them only after consideration of the stream features to enable natural flow.
• Where possible, design landscaping that utilizes native vegetation to reduce need for irrigation, fertilizer and
pesticides. Select plants appropriate for site conditions, such as sun, shade moisture and soil type.
Community Programs
• Sponsor activities and annual events for private citizens, schools, community groups, etc., providing hands-on
activities that promote water quality and beautification throughout the park system.
Updated 3/31/16
20
" P e t o w n e r s a r e r e q u i r e d t o p i c k - u p a n d p r o p e r l y d i s p o s e o f p e t w a s t e s i n t h e P a r k a r e a s . P e t w a s t e s c o o p
d i s p e n s e r s a n d s i g n a g e i s p r o v i d e d i n p a r k s t o n o t i f y v i s i t o r s o f t h e r e q u i r e m e n t .
" O r g a n i z e o r p a r t i c i p a t e i n r e f o r e s t a t i o n p r o g r a m s , p l a n t i n g n a t u r e t r e e s t o b u f f e r s t r e a m s , c r e a t e s h a d e , a n d
b e a u t i f y p a r k s . S u p p o r t c o m m u n i t y v o l u n t e e r g r o u p e f f o r t s i n t h e s e p r o g r a m s .
P a r k / L a n d s c a p e M a i n t e n a n c e
" R e m o v e l i t t e r a n d d e b r i s o n a r e g u l a r b a s i s .
" P r o p e r l y d i s p o s e o f y a r d w a s t e . D o n o t d e p o s i t y a r d w a s t e s i n c r e e k s o r d r a i n a g e a r e a s .
" M i n i m i z e m o w i n g o f o p e n s p a c e s i t e s .
" M o w g r a s s h i g h e r a n d l e a v e g r a s s c l i p p i n g s o n t h e l a w n t o p r o v i d e n u t r i e n t s a n d r e t a i n m o i s t u r e .
" R e p l a c e e x o t i c i n v a s i v e v e g e t a t i o n w i t h n a t i v e p l a n t i n g s a s r e s o u r c e s a r e a v a i l a b l e .
" T e s t s o i l s t o d e t e r m i n e o p t i m u m f e r t i l i z e r a p p l i c a t i o n r a t e s .
" A p p l y f e r t i l i z e r i n c o o l w e a t h e r a n d a v o i d a p p l i c a t i o n s w h e n p r e c i p i t a t i o n i s e m i n e n t . D o n o t a p p l y f e r t i l i z e r a t
r a t e s h i g h e r t h a n i n d i c a t e d o n t h e a p p l i c a t i o n i n s t r u c t i o n s .
" W h e n c l e a r i n g v e g e t a t i o n o r d e s t r o y i n g r o o t z o n e s , e m p l o y B M P s f o r e r o s i o n a n d s e d i m e n t c o n t r o l . F o r d e t a i l s
r e f e r t o A p p e n d i x .
I n t e g r a t e d P e s t M a n a g e m e n t
" U s e I n t e g r a t e d P e s t M a n a g e m e n t ( I P M ) t e c h n i q u e s t o m i n i m i z e t h e u s e o f p e s t i c i d e s . P e s t i c i d e a p p l i c a t i o n
s h o u l d b e t i m e d c a r e f u l l y a n d c o m b i n e d w i t h o t h e r p e s t m a n a g e m e n t p r a c t i c e s . P e s t s a n d t h e i r d e v e l o p m e n t
s t a g e s h o u l d b e i d e n t i f i e d a c c u r a t e l y a n d p e s t i c i d e a p p l i c a t i o n s m a d e o n l y w h e n n e c e s s a r y , u s i n g t h e l e a s t
a m o u n t n e e d e d a n d t h e l e a s t t o x i c p r o d u c t f o r a d e q u a t e p e s t c o n t r o l .
" U s e m e c h a n i c a l c o n t r o l s t o k e e p p e s t s i n c h e c k , s u c h a s s p e c i e s s p e c i f i c , p h e r o m o n e b a s e d t r a p s . R e m o v e p e s t s
b y h a n d . E l i m i n a t e c o n d i t i o n s f a v o r a b l e t o p e s t s a n d p l a c e b a r r i e r s t o c o n t r o l p e s t s a n d w e e d s .
" U s e n a t u r a l , b i o l o g i c a l c o n t r o l s , w h e n f e a s i b l e , i n c l u d i n g n a t u r a l e n e m i e s o f p e s t s , s u c h a s : p r e d a t o r s , p a r a s i t e s ,
p a t h o g e n s , p h e r o m o n e s , a n d j u v e n i l e h o r m o n e s .
" R e d u c e t h e r i s k o f W e s t N i l e V i r u s b y r e d u c i n g s t a g n a n t w a t e r ( m o s q u i t o b r e e d i n g g r o u n d s ) c a u s e d b y c a n s ,
c o n t a i n e r s a n d t i r e s p r e s e n t i n l i t t e r a n d j u n k p i l e s . K e e p i n g s t o r m w a t e r d r a i n a g e g u t t e r s a n d d r a i n s c l e a n w i l l
a l s o r e d u c e c o n d i t i o n s s u i t a b l e f o r m o s q u i t o b r e e d i n g . R e f e r t o M U E x t e n s i o n I P M G u i d e s a t :
h t t p : / / i p m . m i s s o u r i . e d u / i p m r e s o u r e s . h t m
" M i n i m i z e t h e u s e o f h e r b i c i d e s t h r o u g h I P M t e c h n i q u e s f o r w e e d c o n t r o l . T h i s i n c l u d e s p r a c t i c e s t h a t k e e p
p l a n t s h e a l t h y , s u c h a s s e l e c t i n g d i s e a s e a n d p e s t r e s i s t a n t v a r i e t i e s a n d m a i n t a i n i n g g o o d g r o w i n g c o n d i t i o n s .
F o r t u r f g r a s s , p r e v e n t i o n o f w e e d i n f e s t a t i o n b e g i n s w i t h p r a c t i c e s t o p r o m o t e h e a l t h y g r a s s t h r o u g h p r o p e r
p l a n t i n g , w a t e r i n g , f e r t i l i z i n g , m o w i n g , a e r i f i c a t i o n , a n d t h a t c h c o n t r o l . R e f e r t o M U E x t e n s i o n p u b l i c a t i o n
I P M 1 0 0 9 : h t t p : / / m u e x t e n s i o n . m i s s o u r i . e d u / x p l o r / a g g u i d e s / p e s t s / i p m 1 0 0 9 . h t m
U p d a t e d 3 / 3 1 / 1 6
2 1
Pesticide/Herbicide Use
• When pesticide or herbicide use is required, select pesticides carefully, avoiding highly water soluble and very
environmentally stable products to minimize potential for leaching from soils into waterways. Environmentally
friendly products readily degrade in the environment and/or bind to soil particles.
• Consider the vulnerability of the area in which pesticides are applied, avoiding areas with streams, ponds,
sinkholes or wells. Sinkholes are an environmentally sensitive area because they allow surface water to reach
groundwater quickly with little natural soil filtering.
• Apply pesticides when the target pest is at its most vulnerable life stage, and use site specific rather than
wholesale application.
• Read pesticide labels carefully for information and restrictions about the rate, timing, and placement of the
pesticide in that container. Calibrate equipment to apply at the proper rate. Apply when the threat of rain is
low to avoid wasting material and washing pesticide into the waterways. Carefully calculate how much
pesticide concentrate is needed to treat the specific site with the equipment being used, to eliminate disposal of
excess spray mix.
• Store pesticides in their original containers in a cool, well -ventilated location with a concrete floor. Handle
pesticides carefully to avoid spills.
• Dispose of pesticide waste properly, following label instructions.
Training
All employees directly involved in the design, construction and maintenance of landscaping, trails, green spaces
and parks shall be trained on the BMPS in this Chapter.
Updated 3/31/16
22
Chapter 8 — Cleaning and Maintenance of
Drainage Channels, Storm Sewers and Inlets
A. Description of Activities
The function of the storm drainage system is to collect and convey surface runoff to receiving waters during storms
in order to prevent flooding. The system consists of drainage channels, culverts, bridges, trench drains, gutters,
ditches, swales, storm sewers and inlet structures. Maintenance is performed to ensure that the system functions as
intended. MSD has the major responsibility for the cleaning and maintenance of improved channels and storm
sewers in the Plan Area. Maintenance of unimproved channels are the responsibility of the abutting property
owner. The City maintains any storm sewer systems on City property and under road culverts.
B. Responsible Parties
Metropolitan St. Louis Sewer District
Director of Operations, (636) 861-6715
Maintenance Supervisor, (636) 861-6724
City of Webster Groves
Director of Public Works (314) 963-5315
C. Equipment/Materials/Supplies Acquisition, Storage and Usage
The City of Webster Groves Department of Public Works has one combination vacuum and hydroflusher for
cleaning storm sewer inlets and sinkholes. Heavy equipment or contractors are utilized for channel maintenance or
brush removal.
D. Waste Generation, Storage, Disposal, Recycling
Any debris removed from the storm sewer system and channels shall be de -watered at the City Service Center and
hauled to a sanitary landfill by City employees.
E Best Management Practices (BMP)
• Within budgetary constraints and responsibilities, perform preventative maintenance of the storm drainage
system to remove flow obstructions to reduce flooding and erosion problems and improve water quality.
• If possible, identify problem areas and maintain prior to rainfall.
• If storm inlets/catch basins, storm sewers and drainage channels are impacted by non -storm water discharge or
illegal dumping of waste, contact MSD, Division of Environmental Compliance at 314-426-8710 for
investigation and enforcement.
• All construction or maintenance activities that excavate in or discharge any dredge or fill material into a "water
of the United States", which includes ditches, creeks, rivers, lakes, ponds, or wetlands requires a Corps of
Engineers 404 Permit and a MDNR 401 Water Quality Certification. Examples of construction or repair
activities requiring a permit include: sewer creek crossings, outfall structures, stream bank stabilization, and all
channel modifications. See Appendix for a summary of permit requirements.
F. Training
All Street Division employees are trained in the use of appropriate equipment for maintenance activities.
Updated 3/31/16
23
Chapter 9 — Water Quality Impact Assessment of
Flood Management Projects
A. Description of Activities
In conjunction with the State of Missouri and MSD, the City of Webster Groves funds a limited storm water
improvement program of prioritized projects.
Storm water management projects in both development and re -development will be assessed for water quality
impact, according to MSD's "Rules and Regulations and Engineering Design Requirements for Storm water
Drainage Facilities", which address the Storm Water Management Plan water quality requirements. All projects
involving channel modification will also be assessed for aquatic and water quality impacts through Corps of
Engineers 404 permit and MDNR 401 water quality certification processes.
B. Responsible Parties
MSD has general responsibility for storm water drainage facilities in the City of Webster Groves. St. Louis
County, Webster Groves or adjacent property owners have responsibility for the various drainage facilities not
dedicated to and maintained by MSD. Webster Groves maintains control over planning and zoning, land use
regulations, and flood plain management through City ordinances.
C. Best Management Practices (BMP)
• Implement and enforce ordinances and/or procedures requiring that water quality factors be incorporated into
the design and operation of storm water/flood control structures.
• Design new flood management projects to prevent or minimize adverse water quality impacts.
• Use models based on fully developed conditions, and adopt free board above base flood elevation for
development.
• Where possible, maintain and preserve wetlands and open space from development so they can function as
natural attenuation, retention, and detention of runoff.
• Preserve flood plains to the maximum extent practical.
• Use nonstructural flood management practices where practical.
• Channel improvements shall utilize natural approaches rather than concrete, rip -rap, etc. when practical.
• Inlets and outlets from closed systems shall be designed to minimize scour and erosion.
D. Training
Parties responsible for the planning, design, and maintenance of the flood management projects will be identified
and trained on the BMPs of this Chapter.
Updated 3/31/16
24
Appendix A
Locations of City -Owned Buildings, Facilities and Parks
City Hall — 4 E. Lockwood Avenue
The City Hall Complex houses the Mayor's office, the City Manager's office, Finance and Administration
Department, the Police Department, Firehouse No. 1, the Planning and Development Department, the City Clerks
office, and the Administration and Engineering Office of the Public Works Department. A paved parking lot is
provided for visitors and employees, and all City vehicles of the City Hall staff, including the police and firehouse
No. 1 vehicles and equipment. Materials and supplies utilized in performing building maintenance in City Hall,
including custodial work are stored within the building. The site also includes a standby generator for emergency
operation during power outages.
Firehouse No. 2 —1306 S. Elm Avenue
Firehouse No 2 houses the equipment and living requirements for a crew of four employees.
City Service Center —145 Waymire Avenue
This facility houses the Street Maintenance Division and Fleet Maintenance of the Public Works Department and
the Parks Maintenance Division of the Parks and Recreation Department. The facility contains a main building and
a covered salt storage bin. The main building has administrative offices, lunchroom, shower/toilet rooms, a garage
wing with three maintenance bays and a vehicle wash bay. A shooting range for the Police Department is located
in the lower basement area. The remaining basement space is utilized for material and small equipment storage. A
pump island with underground storage of gasoline and diesel fuel is located on the site. All equipment associated
with street and park maintenance activities are generally stored either within covered areas or on a paved parking
surface. All materials utilized in performing street and park maintenance are stored under cover or within the
confines of the fenced maintenance yard. Fleet maintenance is also performed at this location. The City Service
Center typically operates from 6:300 A.M. to 3:30 P.M. The hours vary during emergency operations such as snow
removal.
Parks and Recreation Complex — 33 E. Glendale Road
This (19.5) acre facility consists of a baseball/soccer field, in -line skating rink, (8) tennis courts, three (3)
swimming pools, bath house/toilet facility, and main building for administration offices, snack bar, gymnasium,
fitness center, meeting room(s), kitchen, and ice skating rink with separate locker/shower facilities and (1) party
room. The Parks Division is responsible for the maintenance of the athletic grounds and all other City Parks, and
all ground maintenance activities associated with City Hall and the Cities various beautification areas. A paved
parking lot is provided for patrons and employees. The maintenance for the complex, including the offices, pool
and ice rink are the responsibility of the Recreation Division. Equipment for the building maintenance is stored
within the building. The facility operates seven (7) days a week. Hours of operation vary and are dependant upon
the season.
Blackburn Park — 421 Edgar Road
This 36 acre facility contains a main pavilion and two smaller pavilions, two bathrooms, playground, tennis courts,
two baseball fields (one lighted), a bird sanctuary and two paved parking lots containing 164 parking spaces.
Larson Park — 520 W. Kirkham
This 12 acre facility contains two baseball/soccer fields, tennis courts, a pavilion, playground, bathroom and three
paved parking lots with 57 spaces.
Appendix A
Southwest Webster Park —
This 12.5 acre facility contains a baseball/soccer field, playground facility, bathroom, Hawkins Historical House
and a paved parking lot containing 49 parking spaces
Deer Creek Park —
This 7 acre park contains a baseball/soccer field, playground facility and two paved parking lots containing 28
spaces.
Ivory Crockett Park —
This 7 acre park contains a playground, baseball/soccer field, tennis courts, basketball courts, 1/4 mile long trail,
restrooms, a pavilion, and two paved parking lots containing 35 spaces.
Barnickel Park —
This 4 acre park contains a tennis court, playground, basketball court with two paved parking lots containing 16
spaces.
Satellite Parks — Margaret and Atalanta Park, Barbre Park, John McKee Park, Glen Park, Old Orchard
Park, Lorraine Davis Park, Backflip Park, Ruhe Park, Shady Creek Nature Sanctuary, Plant Wildlife
Refuge and Lockwood Park.
Margaret and Atalanta, John McKee and Lockwood Park have playground facilities. Glen Park contains a baseball
field and playground facilities. Plant Wildlife Refuge contains a small pavilion. Lockwood Park has a parking lot
with 13 spaces. Back Flip Park has patio seating. Old Orchard Park contains a gazebo. Lorraine Davis, Shady
Creek, Ruhe, and Barbre Parks contain no facilities
Appendix B
Model Best Management Practices (BMPs) for
Sediment and Erosion Control
Specifications and Details
DUST CONTROL
PHYSICAL DESCRIPTION:
Control measures designed to reduce the transport of dust, thereby preventing pollutants from
infiltrating into stormwater. Examples for construction activities include vegetative cover, wind barriers,
minimization of soil disturbance, spray on adhesives, tilling, chemical treatment and water sprays.
WHERE BMP IS TO BE INSTALLED:
Critical in areas of exposed soil
CONDITIONS FOR EFFECTIVE USE OF BMP:
A combination of the following actions should be used to help reduce the dust and air pollution at a
construction site.
Minimize Concurrent Areas of Soil Disturbance - Phase work to the extent practical
Vegetative Cover - For areas not subjected to traffic, vegetation provides the most practical method of
dust control and should be established as early as possible. Temporary vegetation should also be
used. See Seeding and Sodding BMP's for additional information.
Sprinkling - The site can be sprinkled with water until the surface is moist. This practice is effective for
dust control on large areas, haul routes_or other traffic routes, but constant repetition is required for
effective control.
Tilling - Roughen the surface and bring clods to the surface. This is an emergency measure that
should be used before soil blowing starts. Begin tillage on windward side of the site. Chisel plows with
shanks spaced about 12 inches to 18 inches apart and spring toothed harrows are examples of
equipment that may produce the desired effect. See Surface Roughening BMP for additional
information.
Wind Barriers - Solid board fences, snow fences, burlap fences, crate walls and similar materials can
be used to control air currents and blowing soil. Barriers placed at right angles to prevailing wing
currents at intervals of about 10 times their height are effective in controlling soil blowing.
Street Cleaning - Paved areas that have soil on them from construction sites should be cleaned
continuously, at least daily, utilizing a street sweeper or bucket type end loader or scraper.
Mulching - This practice offers a fast and effective means of controlling dust when properly applied.
Binders and tackifiers should be used on organic mulches. Mulching is not recommended for areas with
heavy traffic. See Mulching BMP for additional information.
NOTE: If calcium chloride or spray -on adhesives are used for dust control, a permit may
be required from the Missouri Department of Natural Resources.
B-1
WHEN BMP IS TO BE INSTALLED:
Routinely, especially in advance of and during periods of dry weather
INSTALLATION/CONSTRUCTION PROCEDURES: See Conditions for Effective Use above
O&M PROCEDURES:
Inspect daily and renew as needed
SITE CONDITIONS FOR REMOVAL:
Maintain practices until all disturbed areas are vegetated or paved and blowing soil is no longer a
concern.
TYPICAL DETAILS: Not Applicable
B-2
MULCHING
PHYSICAL DESCRIPTION:
A layer of organic material designed to protect exposed soil or freshly seeded areas from erosion by
eliminating direct impact of precipitation and slowing overland flow rates. Mulch materials may include,
but are not limited to, such things as grass, hay, straw, wood chips, wood fibers, and shredded bark.
WHERE BMP IS TO BE INSTALLED:
Typically installed on seeded areas for temporary use, and in landscaped areas for permanent use
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Sheet flow only
Slopes: See attached chart for types of mulch acceptable as a function of
slope length and steepness
Mulching Rates: See attached table
WHEN BMP IS TO BE INSTALLED:
Immediately after grading landscaped areas or seeding other areas
INSTALLATION/CONSTRUCTION PROCEDURES:
✓ Install upstream BMP's to protect area to be mulched
✓ Rough grade area and remove all debris larger than 1 inch if area is to be vegetated and mowed
in the future, larger than 2 inches if area is to be permanently mulched
✓ If area is to be seeded, follow requirements of Seeding BMP
✓ Spread mulch and anchor by punching it into the ground, using netting, peg and twine, or tacking
with liquid binder
O&M PROCEDURES:
✓ Inspect every week and after every storm until adequate vegetation is established; annually for
permanent mulch
✓ Protect from vehicular and foot traffic
✓ Repair damaged, degraded or eroded areas — reseed as needed and replace mulch
SITE CONDITIONS FOR REMOVAL:
Temporary mulch should be removed when adequate vegetation is established
TYPICAL DETAILS:
Type of mulch required for various slopes and application rates attached
B-3
MULCH SELECTION AS A FUNCTION OF SLOPE
1:1
2:1
3:1
m
U)
c 16%
m
w 8%
CO
U)
a
N
2%•---
1%
0
10' 50'
M Consider diversion' to reduce
slope length
Straw or grass mulch with
mechanical anchoring or
tacking agent
Slope Length (feet)
200'
(1) For slopes steeper than 1:1, consider building a diversion above slope to divert water
(2) Example: An B% slope, 100 feet long, requires straw mulch with netting
1:1
2:1
m
8%
•
4%
— 2%
- 1%
GENERAL MULCH RECOMMENDATIONS TO PROTECT
FROM SPLASH AND SHEET FLOW
Material
gate Po A(ers
Reaulremt{11t,
Notes
Straw
2 to 2.5 tons
Dry, unchopped
unweathered;
avoid weeds
Spread by hand or
machine; must be
tacked or tied down
Wood Fiber or
Wood Cellulose
0.5 to 1 ton
Use with hydro seeder; may
be used to tack straw. Do
not use In hot, dry weather.
Wood Chips
5 to 6 tons
Air dry. Add
nitrogen fertilizer
at 12 lb per ton
Apply with blower, chip
handler, or by hand Not
for tine turf areas
Berk
35 cu. yds.
Air dry, shredded,
or hammermilled;
or chips
Apply with mulch blower,
chip handler or by hand
Do not use asphalt tack.
N
B-4
SEEDING
PHYSICAL DESCRIPTION:
Establishment of vegetation by spreading grass seed designed to protect exposed soil from erosion by
eliminating direct impact of precipitation and slowing overland flow rates. Once established, the
vegetative cover will also filter pollutants from the runoff.
WHERE BMP IS TO BE INSTALLED:
Exposed soil after a phase of rough or finish grading has been completed, or areas where no activity
will occur for 30 days
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow:
Contributing Slope Length:
Minimum Rates:
Acceptable Dates:
Sheet flow
30 foot maximum for 3:1 slopes
50 foot maximum for slope between 3:1 and 10:1
100 foot maximum for slopes under 10%
See attached chart(s)
See attached chart
WHEN BMP IS TO BE INSTALLED:
Immediately after rough or finished grading is completed
INSTALLATION/CONSTRUCTION PROCEDURES:
✓ Install upstream BMP's to protect area to be seeded
✓ Rough grade area and remove all debris larger than 1 inch in diameter and concentrated areas of
smaller debris
✓ Install stabilization grids, if needed
✓ Mix soil amendments (lime, fertilizer, etc.) into top 3"-6" of soil as needed
✓ Plant seed 1/4 - 1/2 inch deep
✓ Roll lightly to firm surface
✓ Cover seeded area with mulch unless seeding completed during optimum spring and summer
dates
V Install additional stabilization (netting, bonded fiber matrix, etc.) as required
V Water immediately — enough to soak 4 inches into soil without causing runoff
B-5
O&M PROCEDURES:
✓ Inspect every week and after every storm
✓ Protect area from vehicular and foot traffic
✓ Reseed areas that have not sprouted within 21 days of planting.
I. Repair damaged or eroded areas and reseed and stabilize as needed
✓ Do not mow until 4 inches of growth occurs
✓ During the first 4 months, mow no more than 1/3 the grass height
✓ Refertiltze during 2"d growing season
SITE CONDITIONS FOR REMOVAL:
Does not require removal, but temporary seeding can be removed immediately prior to work returning
to an area
TYPICAL DETAILS:
Minimum seeding rates and acceptable dates for work attached
B-6
SEEDING REQUIRENENTS
Dates for Seeding
Jan
Feb
March
April
May
June
July
Aug
Sep
Oct
:Nov:
Dee:
I'et r caner it Seeding
Tall Fescue
0
0
0
0
0
Smooth Brorre
0
0
0
0
0
Fescue & Brame
0
0
0
0
0
0
Fesrle, Rye & Bluegrass
A
A
0
0
0
P
P
0
0
P
P
A
Temporary Seeding
Jan
Feb
March
April_
May
June
July
Aug
Sep
Oct
::Toil
Ike
Rye or Sudan
A
A
0
0
0
0
0
0
0
0
A
A
Oats
A
0
0
0
0
0
0
0
0 = Optimum seeding dates
A = Acceptable seeding dates
P = Perrritted seeding dates with reseeding 2 months later - Initially use 50% of seed
and 75% of fertilizer Reseed with additional 75% seed and remaining fertilizer.
PemtinentSeeeirrxj
Minimum Fertilizer and Seeding Rates
Pounds per ace
Pounds Par i000s4cit,'.
Tall Fescue
300
7.0
Si i r sjth Brame
200
4.6
Mixture # 1
250
5 7
Mixture # 2
210
4.8
Mixture # 1 = Tall Fescue @ 150
Mxture # 2 = Tall Fescue @ 100
and Kentucky Blue
= Seeding rate for
Tenparary Seeding
pounds per acre and Brorne @ 100 pounds per acre
pounds per acre; Perennial Rye grass @ 100 pounds per au e;
grass @ 10 pounds per ace.
slopes in exrr_ss of 20% (5:1), shall be 10 pounds per 1000 sq. ft.
Ponds pa-aae
Founds Per 1000sil1t.
Rye or Sudan
150
3.5
Oats
200
2 5
Fertilizer
Permanent Seeding
(pounds per acre)
Ter►porarySeecing
(poundsperaae) ..
Nib Lx n
45
30
Phosphate
65
30
Potassiirn
65
30
~ Ume - EMI 1
600
600
EMI = Effective neutralizing material per State evaluation of quarned rode.
B-7
SODDING
PHYSICAL DESCRIPTION:
A 3/4-1 inch thick mat of vigorous turf, free of disease, insects and weeds. Sod prevents raindrops from
disrupting the soil structure and causing erosion. Sod slows water runoff and acts as a filter when
sediment -laden runoff crosses over the sodded area.
WHERE BMP IS TO BE INSTALLED:
Typically installed in areas requiring immediate erosion protection, such as swales or detention ponds
and as filter strips, around inlets, and adjacent to curbs. Also installed in areas requiring immediate
aesthetic appearance or function such as entrances to new subdivision and off site construction areas.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Sheet flow and low concentrated flows with velocities less than 5 fps
WHEN BMP IS TO BE INSTALLED
Immediately after finish grading, installation of area inlets, and installation of underground services and
foundations of new homes.
INSTALLATION/CONSTRUCTION PROCEDURES:
✓ Rough grade area and remove all debris larger than 1/z inch in diameter and concentrated areas of
smaller debris.
✓ Soil preparation of area to be sodded shall be determined by tests to determine lime and fertilizer
requirements. Soil amendments shall be mixed into top 3-6 inches of soil by disking or other
means.
✓ Level and roll soil lightly to provide an even grade and firm the surface. Soil should not be
excessively wet or dry.
✓ Lay first row of sod perpendicular to the slope or direction of flow. Butt subsequent rows tight
against previous rows with strips staggered in brick -like pattern. Fill minor gaps with good soil and
roll entire surface to ensure contact.
✓ Stake, staple and/or net corners and centers of sod strips as required.
✓ Water immediately after installation enough to soak 4 inches into soil without causing runoff.
O&M PROCEDURES:
✓ Water sod daily for 3 weeks - enough to soak 4 inches into soil without causing runoff.
✓ Reposition areas of sod that has moved along the slope.
V Remove sediment accumulations - replace sod if necessary.
✓ Repair any eroded areas, replace sod. and stabilize as needed
✓ Do not mow until 3 inches of new growth occurs. During the first 4 months, mow no more than 1/3
the grass height.
SITE CONDITIONS FOR REMOVAL: Not Applicable
TYPICAL DETAIL: B - 8
B - e
NEW
REVISIONS
7/28/08
I--
1) LAY SOD IN A STAGGERED PATTERN WITH STRIPS
BUTTED TIGHTLY AGAINST EACH OTHER.
2) ON SLOPES GREATER THAN 4%, USE PEGS OR STAPLES TO
FASTEN SOD FIRMLY AT THE CORNERS AND CENTERS.
INSTALLATIONOF GRASS SOD
LAY SOD PERPENDICULAR TO THE
DIRECTION OF FLOW. USE PEGS OR
STAPLES TO FASTEN SOD FIRMLY
AT THE CORNERS AND CENTERS.
INSTALLATION OF SOD IN WATERWAYS
NOTE: JUTE MATTING CAN BE USED WHERE
ADDITIONAL STABILITY IS REQUIRED
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
SODDING
DRAWING B-8
GRAVEL BAGS
PHYSICAL DESCRIPTION:
Open mesh nylon or burlap bags of gravel designed to pond water and cause sediment to settle out.
Gravel bags can be used alone or as a part of other best management practices.
WHERE BMP IS TO BE INSTALLED:
Suitable for multiple uses including disrupting concentrated flows, redirecting concentrated flows,
capturing sediment by ponding, and anchoring other devices. Can be used in place of silt fence, rock
check dams, rock outlet protection, ridge diversions, inlet protection, and level spreader, or as part of
the structure of sediment basins, sediment traps, storm drain diversions, and structural stabilization of
streams.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Sheet flow and concentrated flow
WHEN BMP IS TO BE INSTALLED:
Dependent upon function it is designed to perform
INSTALLATION/CONSTRUCTION PROCEDURES:
V Fill bags approximately 2/3 full
✓ Grade and stabilize soil on which bags are to be placed
V Install center line of bags on bottom row
✓ Place remaining bags on each side of center — min. width of bottom row is 3 bags
✓ Place upper rows of bags, staggering ends in brick -like pattern
O&M PROCEDURES:
V Inspect every week and after every storm
V Replace and stabilize any damaged bags or bags that have moved out of place
V When silt builds up in front of a row of gravel bags performing the function of silt fence, move the
row of bags in front of the sediment buildup. This "new row" will capture additional sediment and
keep concentrated flows from reaching the previous sediment deposit.
✓ Remove sediment at rows of bags used as weirs or lips. Bags may be repositioned to facilitate
removal of sediment.
SITE CONDITIONS FOR REMOVAL:
Completion of upstream work and vegetation of contributing runoff areas.
TYPICAL DETAIL: g _ 9
e - s
NEW
REVISIONS
7/28/08
ELEVATION
FLAT SLOPE, LESS
THAN 1% IN FRONT
OF BARRIER
60 DEGREES
MAX. 5' MIN.
Irm
FLOW
• 1 I' .ill 11-1fi=1 1. ice.
,i :r I1CI� I T�
1=�l�Ilf�l�t"ii=•— I 1- fl- 1-.6il -li
LEVEL CONTOUR
NO SLOPE
ail i!s• -Tir--1-12—
GRAVEL BAGS AS SILT FENCE
GEOTEXTILE FABRIC
60 DEGREES
MAX. 1'-3'
FLOW
TOE WALL
WIDTH, SEE PLAN
GRAVEL BAGS AS
ROCK OUTLET PROTECTION
WOVEN FABRIC
(MIRAFI 600X
OR EQUAL)
111
GRAVEL BAGS AS
CHECK DAM
60 DEGREES
MAX.
7 OZ BURLAP OR
POLYPROPYLENE --
BAG WITH TIES
1"-2" AGGREGATE
DIVERSION RIDGE
1.-2'
GRAVEL BAGS AS
DIVERSION RIDGE
1'•3'
26"-27"
}
14"-17"
GRAVEL BAG
NOTE: FILL BAGS 2/3 FULL,
60 LBS. MAX. WEIGHT
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
GRAVEL BAGS
DRAWING B-9
EROSION CONTROL BLANKETS
PHYSICAL DESCRIPTION:
An erosion control blanket is a preformed protective blanket of plastic fibers, straw or other plant
residue designed to protect soil from the impact of precipitation and overland flow, and retain moisture
to facilitate establishment of vegetation. There are many products on the market designed for a variety
of applications.
WHERE BMP IS TO BE INSTALLED:
Typically installed on slopes or in channels prior to establishment of vegetation
CONDITIONS FOR EFFECTIVE USE OF BMP:
Several factors, such as soil conditions, steepness and length of slope, depth of flow, runoff velocities,
and time required to establish desired vegetation, influence the choice of product. Manufacturer's
recommendations should be followed. Products are available for a variety of uses:
Netting - synthetic or natural fiber mesh installed over disturbed area to hold organic mulch and/or
seed in place
Biodegradable Erosion Control Blanket - natural fiber blanket held together by netting to provide
temporary erosion protection on slopes and channels_
Permanent Erosion Control Blanket - synthetic blanket material which provides permanent erosion
control on slopes and channels with increased water flow velocities.
Turf Reinforcement Mat - 3 -dimensional permanent synthetic mat that provides a matrix to greatly
reinforce the root system of the desired vegetation for permanent erosion protection in high flow
channels and on critical slopes.
WHEN BMP IS TO BE INSTALLED:
Dependent upon intended use - immediately after completion of a phase of grading, or installation of
vegetation
INSTALLATION/CONSTRUCTION PROCEDURES:
Follow manufacturer's recommendations and specifications, particularly noting requirements for check
slots, fastening devices and need for firm contact with soil.
B-10
O&M PROCEDURES:
✓ Inspect every week and after every storm until adequate vegetation is established
✓ Repair erosion and/or undermining at top of slope
✓ Repair undermining beneath blankets - pull back the blanket(s), fill and compact eroded area,
revegetate and then secure blanket(s) firmly
/ Reposition or replace blankets that have moved along the slope or channel and secure firmly
✓ Replace damaged blankets
SITE CONDITIONS FOR REMOVAL:
Temporary blankets will generally degrade naturally; permanent blankets remain in place
TYPICAL DETAILS: Not Applicable
B-11
BONDED FIBER MATRIX
PHYSICAL DESCRIPTION:
A bonded fiber matrix (BFM) is a hydraulically applied continuous layer of elongated fiber strands held
together by a water resistant bonding agent designed to protect exposed soil by eliminating direct
impact of precipitation. BFM's adhere directly to the surface of the soil, eliminating gaps between the
product and the soil; therefore, no special treatment is required at the upstream end of the BFM. BFM's
have a high water -holding capacity, but do not form a water -insensitive crust that would inhibit plant
growth. BFM's biodegrade completely into material known beneficial to plant growth.
WHERE BMP IS TO BE INSTALLED:
Typically installed on slopes where erosion control blankets are impractical and other mulching
methods are inadequate.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Sheet flow only
WHEN BMP IS TO BE INSTALLED:
Immediately after completion of a phase of grading
INSTALLATION/CONSTRUCTION PROCEDURES:
Follow manufacturer's recommendations to maximize usefulness
O&M PROCEDURES:
✓ Inspect every week and after every storm until vegetation is fully established
✓ Repair eroded areas and reapply product and vegetation
SITE CONDITIONS FOR REMOVAL:
Typically left in place to degrade naturally
TYPICAL DETAILS: Not Applicable
B-12
SOIL BINDERS
PHYSICAL DESCRIPTION:
A material sprayed onto the surface of exposed soils designed to protect against erosion for wind or
runoff. The useful life of most products is 3 to 6 months. Examples of materials used include vegetable -
based adhesives, copolymers, petroleum oils and resin -emulsions.
WHERE BMP IS TO BE INSTALLED:
Typically used in disturbed areas and in combination with other BMP's such as perimeter controls,
seeding or mulching.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Sheet flow
WHEN BMP IS TO BE INSTALLED:
Immediately after completion of a phase of grading
INSTALLATION/CONSTRUCTION PROCEDURES:
Follow manufacturer's recommendations to maximize usefulness and avoid formation of pools or
impervious areas where stormwater cannot infiltrate
O&M PROCEDURES:
✓ Inspect every week for damage from vehicles, runoff, or freeze -thaw conditions
✓ Reapply product or utilize additional BMP
SITE CONDITIONS FOR REMOVAL:
Typically left in place to degrade naturally
TYPICAL DETAILS. Not Applicable
B-13
FIBER ROLLS AND FILTER ROLLS
PHYSICAL DESCRIPTION:
A fiber roll, also known as a wattle, consists of straw, flax, coconut fiber (coir), rice straw or other similar
materials bound in a tight photodegradable or biodegradable tubular roll or filter sock. A filter roll
consists of a biodegradable coarse composted or filter material bound in a tight photodegradable or
biodegradable tubular roll or filter sock. They intercept runoff, reduce flow velocity, remove sediment
from the runoff, and reduce soil erosion. Fiber rolls and filter rolls must be prefabricated.
WHERE BMP 1S TO BE INSTALLED:
Installed on erodible slopes, at top of and toe of slopes, around the perimeter of the site, and around
temporary stockpiles, as final barrier to sediment being carried off site. Spacing of rolls along slopes is
relative to slope. Filter rolls and fiber rolls may also be used at drain inlets, swales and other
concentrated flow areas to prevent sediment, silt, and other solids in storm water runoff from entering
the storm sewer system. Rolls may also be used as mini check dams in unlined ditches and swales.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Sheet flow and concentrated flow
Contributing Slope: For slopes, use the following row spacing:
2:1 (H:V) or steeper
Between 2:1 and 4:1 (H:V)
4:1 (H:V) or flatter
10 feet
15 feet
20 feet
WHEN BMP IS TO BE INSTALLED:
Prior to disturbance of natural vegetation and at intervals during construction of fill slopes. Fiber rolls
and filter rolls should not be used on slopes subject to creep, slumping or landslide. Rolls are difficult to
move once saturated.
INSTALLATION/CONSTRUCTION PROCEDURES:
✓ Calculate required roll diameter, length and row spacing based on slope and the
manufacturers recommendations.
✓ Dig trench to required depth for fiber rolls (filter rolls do not require trench).
✓ Place fiber rolls in trench or filter rolls directly on slope.
✓ Stake the fiber rolls or filter rolls as shown on detail drawings.
✓ Place excavated soil (fiber roll) or filter roll material along the upside of rolls as
shown on detail drawings, not to exceed'% of the roll diameter.
B-14
O&M PROCEDURES:
✓ Inspect every week and after every storm.
✓ Remove sediment buildup deeper than 1/2 the exposed roll height,
✓ Replace or repair split, torn, unraveling, slumping or damaged rolls.
✓ Repair or replace unstable or broken wood stakes_
✓ Stabilize any areas susceptible to undermining.
✓ Extend rows or add additional rolls if necessary to provide adequate protection.
SITE CONDITIONS FOR REMOVAL:
After permanent vegetation of slope is established, remove rolls, collect and dispose of sediment
accumulation, regrade trench area to blend with adjacent ground, and vegetate. Rolls do not have to be
removed if approved construction or grading plans call for rolls to permanently be left in place (must be
fully biodegradable).
TYPICAL DETAILS: B - 15a, B - 15b, B - 15c
B-15
NEW
REVISIONS
7/28/08
Excavated Material
from Trench (Not to
Exceed 1/4 of the
Roll Diameter)
Drive 1' x 1" Wood Slakes
Through Center of Roll
(24" Min, Length), 6'
6" From Each End
and 4' on Center (Max,;
8"- 20" Dia.
Fiber Roll or Wattle
Slope
FIBER ROLL SECTION & STAKING
(TYPE J
Note: Construct a 'J -hook' al each end of a continuous run of fiber rolls
or wattles, by turning the end of the roll uphill, to prevent storm
water runoff and solids from flowing around the ends. when water
behind the roll ponds up to a level even with the top of the roll.
Slope
Varies
\Not\
(Type 1 Staking - Staggerd Joints)
°A.
vat
//
ROW SPACING (Table 1)
nor= 2:1 Slope =
10 Feel
2:1 to 4:1 Slope =
I5 Fee:
'sr 4.1 Slope =
20 Feel
GENERAL NOTES
1) Do not scale drawing, follow dimensions.
2) Row spacing for slope installations should be determined by site conditions
such as slope gradient and soil type (see Table 1 for row spacing).
3) Installations as shown above are designed for slopes of 1:10 and steeper,
4) Netting, filter sock or outer cover of rolls must be constructed of photodegradable
or biodegradable material.
5) Fiber Rolls and Wattles shall contain straw, flax, coconut fiber (coin. rice straw or aspen
excelsior, in a tight tubular roll, specifically designed for removal of solids from storm
water runoff. Fill material must be biodegradable and contain no chemical additives,
6) Fiber Rolls or Wattles may be weighted for use around street inlets (internal roll weight
or by placing a weight, such as a concrete block, on the down stream side of the roll).
Weight must not be placed on top of the roll, smashing or flattening the roll.
7) Follow the roll manufacturers instructions and recommendations for the sizing,
installation and maintenance of all Fiber Rolls or Wattles.
(Type 1 Staking - Butt Joints)
Fiber Roll
or Wattle
Wood Stake
Fiber Roll
or Wattle
5' Below
Top of Slope
Staggered Joint
Between Rolls
1B' (Alin.)
&' A' (Max.) 4' (Max.)
4' (Max.) ' 4' (Max )
Wood Stake
Fiber Roll
or Wattle
STAKING WITH STAGGERED JOINTS
LTYPE
Butt Joint
Between Rolls
STAKING WITH BUTT JOINTS
(TYPE 1)
1" x 1' Stake (Use
Manufacturers
Required
Specifications)
Staggered Joint 9Fa /dP
II Between Rolls
"'co :is
pry'9$'" fi90
04:1-
INSTALLATION AND SPACING
(TYPE 1 STAKING)
0.75'
STAKE DETAIL
LTYPE 1)
5' Above
Toe of Slope
0.75'
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
FIBER ROLLS AND WATTLES
(TYPE 1 STAKING)
DRAWING B - 15a
NEW
REVISIONS
7/28/08
I I
Excavated Material
from Trench (Not to
Exceed 114 of the
Roll Diameter)
04/
Slope
Rope Tie
1'x2'or2"x2'
Wood Stakes
(24' Min. Length)
8'- 20' Dia.
Fiber Roll or Wattle
Slope
FIBER ROLL SECTION & STAKING
(TYPE 2 & TYPE 3)
Note: Construct a 'J -hook' at each end of a continuous run of fiber rolls
or wattles, by turning the end of the roll uphill, to prevent storm
water runoff and solids from flowing around the ends, when water
behind the roll ponds up to a level even with the top of the roll.
v j Staggered Join,
Slope \ i Between Rolls
Varies
ROW SPACING (Table II
>or= 2:1 Slope = 10 Feel
2:1 to 4:1 Slope = 15 Feel
<or= 4:1 Slope = 20 Feel
GENERAL NOTES
1) Do not scale drawing, follow dimensions.
2) Row spacing for slope installations should be determined by site conditions
such as slope gradient and soil type (see Table 1 for row spacing).
3) Installations as shown above are designed for slopes of 1:10 and steeper,
4) Netting, filler sock or outer cover of rolls must be constructed of photodegradable
or biodegradable material.
5) Fiber Rolls and Wattles shall contain straw, flax, coconut fiber (colr), rice straw or aspen
excelsior, in a tight tubular roll, specifically designed for removal of solids from storm
water runoff. Fill material must be biodegradable and contain no chemical additives.
6) Fiber Rolls or Wattles may be weighted for use around street inlets (internal roll weight
or by placing a weight, such as a concrete block, on the down stream side of the roll).
Weight must not be placed on top of the roll, smashing or flattening the roll
7) Follow the roll manufacturers instructions and recommendations for the sizing.
installation and maintenance of all Fiber Rolls or Wattles.
4' (Max.) 4' (Mak.) 1 6' 6' 14' (Max.) 4' (Max,)
Fiber Roll
or Wattle
Wood Stake
Rope Tie
18' [MIS.)
Staggered Joint
Between Rolls
5' Below
Top of Slope
a.
Rope Tie
Wood Stake
Fiber Roll
or Wattle
STAKING WITH STAGGERED JOINTS
(TYPE 2)
9!6p ,p
4'6 c4.0
..s.144 6.4r
0
°ors 33
. 'pia
(Type 3 Staking - Butt Joints)
Butt Joint
Between Rolls
Rope Tie Fiber Roll
of Wattle
STAKING WITH BUTT JOINTS
(TYPE 3)
1.5'
1's2'or2'x2"
Wood Stake
0.5' x 0.5'
Notch
0.75'
or
1.5'
STAKE NOTCH DETAIL
(TYPE 2 & TYPE 3)
5' Above
Toe of Slope
INSTALLATION AND SPACING
(TYPE 2 & TYPE 3, STAKING)
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
FIBER ROLLS AND WATTLES
(TYPE 2 & TYPE 3 STAKING)
DRAWING B -15b
NEW
REVISIONS
7/28/08
Blown or Placed
Filter Roll Compost
Media (Optional) -
Not to Exceed 114
of the Roll Diameter
LE'a7Pr Fin
Slope —
j
/—
Drive 2' x 2° Wood Stakes
(24" Min, Length)
Through Center of Roll
6' From Each End
and 4' on Center (Max.)
8'- 32" Dia.
Filler Roll
Slope
FILTER ROLL SECTION & STAKING
(TYPE 4)
Note: Construct a 'J -hook° at each end of a continuous run of flter rolls
by turning the end of the roll uphill, to prevent storm water runoff and
solids from flowing around the ends, when water behind the roll
ponds up to a level even with the lop of the sock.
5,
Slope
Varies
A ' $layyered Join!"
III/J Between Rolls
(Type 1 Staking - Staggerd Joints)
$ % or,
ROW SPACING (Table 1)
>or= 2:1 Slope =
10 Feel
2:1 l0 4:1 Slope =
15 Feet
<or= 4:1 Slope =
20 Feel
GENERAL NOTES
1) Do not scale drawing, follow dimensions.
2) Row spacing for slope installations should be determined by site conditions
such as slope gradient and soil type (see Table 1 for row spacing).
3) Installations as shown above are designed for slopes of 1:10 and steeper.
4) Netting, filler sock or outer cover of rolls must be constructed of photodegradable
or biodegradable material.
5) Filter rolls or filter socks shall contain a biodegradable coarse composted or filler material
in a tight tubular roll, specifically designed for removal of solids from storm water runoff,
Fill shall be free of any refuse, contaminants or other materials toxic to plant growth.
6) Filler rolls or filter socks may be weighted for use around street inlets (infernal roll weight
or by placing a weight, such as a concrete block, on the down stream side of the roll).
Weight must not be placed on top of the roll, smashing or flattening the roll.
7) Follow the roll manufacturers instructions and recommendations for the sizing,
installation and maintenance of all filter rolls or filter socks.
Filter Roll
2'x2"
Wood Stake
Staggered Joint
Between Rolls
16' (Min.)
6' 4' (Mnx.) 4' (Ma
4' (Max.) 4' (Max )
)
2'n2'
Wood Stake
Filler Roll
STAKING WITH STAGGERED JOINTS
(TYPE 4)
Bull Joint
Between Rolls
Filter Roll
5 Below
Top of Slope
INSTALLATION AND SPACING
(TYPE 4 STAKING)
(Type 1 Staking - Bull Joints)
STAKING WITH BUTT JOINTS
(TYPE J
2' x 2' Stake (Use
Manufacturers
Required
Specifications)
2'x2°
Wood Stake
STAKE DETAIL
(TYPE 4)
5' Above
Toe of Slope
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
FILTER ROLLS
(FILTER SOCKS)
(TYPE 4 STAKING)
DRAWING B - 15c
SILT FENCE
PHYSICAL DESCRIPTION:
A fence constructed of woven filter fabric and wire mesh stretched between posts and entrenched in
the ground designed to pond stormwater runoff and cause sediment to settle out.
WHERE BMP IS TO BE INSTALLED:
Installed along slopes, at base of slopes, and around perimeter of site as final barrier to sediment being
carried off site. Spacing of fence along slopes is relative to slope:
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow:
Contributing Slope Length:
Sheet flow only
30 foot maximum for 3:1 slopes
50 foot maximum for slopes between 3:1 and 10:1
100 foot maximum for slopes under 10%.
WHEN BMP IS TO BE INSTALLED:
Prior to disturbance of natural vegetation and at intervals during construction of fill slopes
INSTALLATION/CONSTRUCTION PROCEDURES:
✓ Drive post for fence line
✓ Dig trench to required dimensions in front of posts for fabric burial
✓ Attach wire mesh to posts
✓ Attach fabric to posts, allowing required length below ground level to run fabric along bottom of
trench
✓ Backfill and compact soil in trench to protect and anchor fabric
Alternate Construction: Install fence by slicing it into ground with specialized equipment
Install posts at reduced spacing indicated on detail
O&M PROCEDURES:
✓ Inspect every week and after every storm
✓ Remove sediment buildup deeper than % the fence height or 12", whichever is less
✓ Replace torn of clogged fabric; repair loose fabric
✓ Repair unstable or broken posts
✓ Stabilize any areas susceptible to undermining
✓ Extend fence or add additional row(s) of fence if necessary to provide adequate protection
SITE CONDITIONS FOR REMOVAL:
After permanent vegetation of slope is established. Remove fence, regrade trench area and vegetate.
TYPICAL DETAIL: B - 16
B-16
NEW
REVISIONS
7/28/08
J
-708 - -
-710- .
-710 -- `
1
'708-- _ / .,-• y I o.
;` I / I 1
- 706- + . l \ • \ ••
-704-'1-- _,\ ti \ \ ,
-702- te' \\--\\•\ 1 • i
SILT FENCE��700_Y�f�� 4,y�tY�� f
FOLLOW LEVEL CONTOUR
WITH ENDS POSITIONED UPHILL -
WOVEN FABRIC
(MIRAFI 100X OR
EQUAL) OVER WIRE
MESH (14 GUAGE,
6 x 6 MESH
5' MAX
PLAN VIEW
yr
••= 111
;;;::9
,I'�iiim'a'E.
fi:11:
@izl:::r••
!°°• ; r
'E:6
LEVEL CONTOUR
NO SLOPE
NO
n
{e ?
^�
: n� aii=s;ii�
6" MIN.
TRENCH
ELEVATION
<1% SLOPE IN FRONT OF BARRIER, 5' MIN
WIRE MESH
FABRIC
TRENCH TO BE BACKFILLED
AND COMPACTED
FLOW
6" MIN. DEPTH
- BURY 1' OF FABRIC ALONG
BOTTOM AND EDGE OF TRENCH
SECTION
NOTE: IF FABRIC IS INSTALLED BY EQUIPMENT DESIGNED
TO SLICE INTO THE GROUND, THE TRENCH IS NOT NEEDED,
DRAINAGE AREA
PREVENT FLOW AROUND
ENDS BY BRINGING
UP SLOPE
SET 10' MIN. AWAY FROM
STEEP SLOPE OR TOE OF FILL
— 2" x 2" CONSTRUCTION
GRADE LUMBER, 4' LONG
FASTEN WITH 3 - 50 LB.,
DIAGONAL CABLE TIES
WITHIN TOP 8" OF FABRIC
WRAP GEOTEXTILE
AROUND STAKES
BEFORE DRIVING
JOINING SECTIONS
OF SILT FENCE
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
SILT FENCE
DRAWING 13 - 16
ROCK OUTLET
PHYSICAL DESCRIPTION:
A rock apron installed over a geotextile fabric at a point of concentrated discharge, designed to slow the
velocity of flow and protect the receiving area from erosion.
WHERE BMP IS TO BE INSTALLED:
Installed at BMP outlets, for example, at the end of pipe slope drains, the emergency overflow or outlet
pipe of a sediment basin.
CONDITIONS FOR EFFECTIVE USE OF BMP:.
Type of Flow: Concentrated flow
Flow at Outlet: Maximum velocity of 10 fps
WHEN BMP IS TO BE INSTALLED:
With the construction of the upstream BMP that creates the concentrated discharge.
INSTALLATION//CONSTRUCTION PROCEDURES:
✓ Grade subgrade of rock blanket to required section
✓ Place filter fabric, providing enough slack to assure that rock will not tear the fabric when it is
placed
✓ Install rock with uniform profile and cross section
O&M PROCEDURES:
✓ Inspect every week and after every storm during construction
✓ Remove sediment and trash accumulation
✓ Replace displaced rock - larger rock may be required.
V Stabilize eroded areas - extend if necessary
SITE CONDITIONS FOR REMOVAL:
Removed concurrently with upstream BMP.
TYPICAL DETAIL: B - 17
B-17
NEW
REVISIONS
7/28/08
1
PIPE DIAMETER
GEOTEXTILE FABRIC ALONG BOTTOM AND ALL SIDES
1' MIN.- - - LENGTH
PLAN
SECTION / ELEVATION
WIDTH
DOWNSTREAM
THICKNESS
PIPE DIAMETER WIDTH UPSTREAM IDTH DOWNSTREAM LENGTH ROCK SIZE I THICKNESS
L (INCHES) (FEET) (FEET) (FEET) (INCHES) (INCHES)
6
12
18
1.5
3
4.5
24
!� .. 30 �._.
6
7.5
" 10 x DIAMETER OF PIPE
8 * 5-10 15
12
16
20
22
* 5-10
* 9-14
9-14
9-14
*
*
NOTE: WIDTH UPSTREAM IS MEASURED AT END OF PIPE
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
ROCK OUTLET
DRAWING B - 17
INLET PROTECTION - BLOCK & GRAVEL
PHYSICAL DESCRIPTION:
A temporary sediment control barrier consisting of a short concrete block wall supporting gravel filter
media around a grated inlet designed to prevent sediment from entering the storm sewer. Shallow
temporary ponding during and after rainfall should be expected.
WHERE BMP IS TO BE INSTALLED:
At inlets where heavy flows are expected and an overflow capacity is necessary to prevent excessive
ponding around the structure.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Sheet flow and concentrated flow
Contributing Area: Maximum of 1 acre
WHEN BMP IS TO BE INSTALLED:
Immediately after placement of inlet.
INSTALLATION/CONSTRUCTION PROCEDURES:
v' Backfill, compact and uniformly grade area around inlet
✓ Install first row of concrete blocks adjacent to the inlet sill, placing one block on its side on each
side of inlet. The blocks are placed against the sill for lateral support and to avoid washouts when
overflows occur.
✓ If needed for lateral support, install 2 x 4 lumber through vertical block openings
✓ Fill vertical block openings with gravel for stability
✓ Place second row of block offsetting one-half block from the first row, in a brick -like pattern
✓ Fill vertical block openings with gravel
✓ Anchor wire screen over horizontal block openings to support gravel
✓ Place gravel around the blocks
O&M PROCEDURES::
✓ Inspect every week and after every storm
✓ Remove sediment accumulation to keep it at least 8 inches from the top of the blocks
✓ Remove trash accumulation at inlet
✓ Repair elements to original configuration as needed
SITE CONDITIONS FOR REMOVAL:
Remove after contributing drainage areas have been adequately stabilized. Restore area to grade and
vegetate.
TYPICAL DETAIL: B - 18
B-18
NEW
REVISIONS
7/28/08
WIRE
SCREEN
2" x 4" CONSTRUCTION
GRADE LUMBER IF
NEEDED FOR LATERAL
SUPPORT (TYP.)
I
PLAN VIEW
INLET SILL
2"x4" CONSTRUCTION GRADE
LUMBER IF NEEDED FOR
LATERAL SUPPORT (TYP.)
FLOW
WIRE SCREEN -
HARDWARE CLOTH
OR OTHER MESH
WITH 1/2" OPENINGS
TEMPORARY BERM
TO PREVENT BYPASS
1'
,i�-i-fil-itl--ffib ""1=•r'ii=
1�1-1t
714
~ 1 I y
' l i rj f3 ul 1 11 -^r -=-'I HEJf t'
WIRE
SCREEN
SECTION A -A
1% MAX SLOPE
WITHIN 3' OF
GRAVEL TOE
DOWNSTREAM BERM
CONCRETE
BLOCKS
2" CLEAN GRAVEL
WIRE
SCREEN
OVERFLOW
SLOPE 2:1 OR
FLATTER
BOTTOM OF BLOCKS
SHALL BE SET 2" LOWER
THAN THE INLET SILL -
CENTER BLOCKS SHALL
BE TURNED ON SIDE
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
INLET PROTECTION -
BLOCK AND GRAVEL
DRAWING B-18
INLET PROTECTION - FABRIC DROP
PHYSICAL DESCRIPTION:
A woven fabric barrier braced around an area inlet designed to prevent sediment from entering the
storm sewer. Shallow temporary ponding during and after rainfall should be expected.
WHERE BMP IS TO BE INSTALLED:
At inlets designed to drain a small gently sloping area with maximum grade of 5%. Overflow capacity is
limited on standard area inlets.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Shallow sheet flow
Contributing Area: Maximum of 2 cfs flowing to inlet
WHEN BMP IS TO BE INSTALLED:
Immediately after placement of inlet.
INSTALLATION/CONSTRUCTION PROCEDURES:
✓ Backfill, compact and uniformly grade area around inlet
✓ Construct downstream berm, if required. Rock bags or sand bags may be used to construct berm.
✓ Drive posts or wood frame close to inlet sill so overflow will fall directly on the structure and not on
unprotected soil
✓ Dig trench around inlet for fabric to be buried
✓ Cut required length of fabric from one roll to eliminate joints. Fasten fabric tightly around
posts/frame to enhance stability.
✓ Backfill and compact trench.
O&M PROCEDURES:
✓ Inspect every week and after every storm
✓ Remove trash accumulation and sediment once it reaches depth of 6" at inlet.
✓ Replace loose, torn or clogged fabric
V Repair any erosion or settlement of temporary berm downstream of inlet
SITE CONDITIONS FOR REMOVAL:
Remove after contributing drainage areas have been adequately stabilized. Restore area to grade and
vegetate.
TYPICAL DETAIL: B - 19
B-19
NEW
REVISIONS
7/28/08
I
STEEL FENCE POSTS-
OR 2" x 4" WOOD FRAME
MIN. LENGTH 3'
MAX. LENGTH 3.5'
1'
MIN. 7
_
F__
/ 1% MAX
p~ - •
SLOPE WITHIN
3' OF INLET
__f
¢ �E, :
1.Q' MIN_
1.5' MAX, FLOW
TEMPORARY BERM -
1' HIGHER THAN
SILT FENCE TO
PREVENT BYPASS
PERSPECTIVE
sty
V
STAKE / POST
FABRIC —�
— AREA INLET
.
'. :: :: ;::: C.:::: :;::;°
"`• w E
F
TRENCH TO BE
FRAME
BACKFILLED : kE:' • a
=: , s • ''s isi
AND COMPACTED ,
I r
%?
— WOVEN FABRIC
100X
BURY 1' a;� •�.•sssfm
k
;�
(MIRAFI
��
1e.:.....�SS:�
:l
OR EQUAL)
OF FABRIC �:
T
6" MIN
DEPTH
,171 -
F a —I
_13_I .
ry
�
• •f •:t:;. •h:, .'
v..4.-•
�;r w •.
.-
GATHER EXCESS
FABRIC AT CORNERS,
OVERLAP TO THE NEXT
18"
I -11F
STAKE FOR JOINTS
I
L
6
FABRIC
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
ELEVATION
TYPICAL BMP DETAIL
INLET PROTECTION -
FABRIC DROP
DRAWING B-19
INLET PROTECTION - SOD FILTER
PHYSICAL DESCRIPTION:
A sod barrier installed around an area inlet after the surrounding area has been stabilized. It is
designed to slow runoff velocities and remove sediments and other pollutants from the runoff. This final
inlet protection measure is an aesthetically pleasing way to treat stormwater.
WHERE BMP IS TO BE INSTALLED:
Around the perimeter of an area inlet
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Sheet flow and concentrated flow with velocities less than 5 fps
WHEN BMP IS TO BE INSTALLED:
Near end of construction, after the contributing watershed is stabilized with vegetation.
INSTALLATION/CONSTRUCTION PROCEDURES:
✓ Prepare and fertilize soil
✓ Lay first row of sod adjacent to inlet perpendicular to the direction of flow. Butt subsequent rows
tight against previous rows with strips staggered in brick -like pattern for a distance of at least 4
feet in each direction. Fill minor gaps with good soil and roll entire surface to ensure surface
contact.
✓ Stake, staple and/or net corners and centers of sod strips as required.
✓ Water immediately after installation - enough to soak 4 inches into soil without causing runoff.
O&M PROCEDURES:
✓ Water sod daily for 3 weeks - enough to soak 4 inches into soil without causing runoff
✓ Inspect sod every week and after every storm
✓ Reposition areas of sod that have moved
✓ Remove sediment accumulation on sod once it extends within 18" of inlet — replace sod if
necessary
V Repair any eroded areas, replace sod, and stabilize as needed
✓ Do not mow until 3 inches of new growth occurs. During the first 4 months, do not mow more than
1/3 the grass height.
SITE CONDITIONS FOR REMOVAL: Not Applicable
TYPICAL DETAIL: B - 20
B-20
NEW
REVISIONS
7/28/08
0
J
LL
LAY SOD
PERPENDICULAR
TO DIRECTION
OF FLOW
FLOW
44)
-•`\
____j
FLOW
rt.
F1
OF SOD STRIPS
ENDS
STAGGERED SUCH THAT
ENDS ARE NOT ALIGNED
o
J
lL
SLOPE 4:1
PLAN
MINIMUM OF
4 FT OF SOD
OR FLATTER
FLOW
4H.°,-11,
AREA
INLET
SOD
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
SECTION A -A
TYPICAL BMP DETAIL
INLET PROTECTION -
SOD FILTER
DRAWING B-20
TEMPORARY SLOPE DRAIN
PHYSICAL DESCRIPTION:
A flexible tubing or rigid conduit extending from the top to the bottom of a cut or fill slope designed to
protect exposed slopes from upstream runoff. Slope drains typically extend beyond the toe of slope to a
stable area or outlet.
WHERE BMP IS TO BE INSTALLED:
Typically installed on long slopes where runoff cannot easily be directed to the ends of a section of cut
or fill.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow:
Contributing Area:
Sheet flow and concentrated flow
Maximum 5 acres per slope drain; pipe sized for 15 year, 20 minute
storms
WHEN BMP IS TO BE INSTALLED:
Concurrently with diversion devices and at the end of each work day for slopes 10 feet or more in
height
INSTALLATION!CONSTRUCTION PROCEDURES:
Temporary slope drains must be installed and maintained properly because failure will usually result in
severe erosion of the slope. Other points of concern are failure from overtopping due to inadequate
pipe inlet capacity or blockage, and lack of maintenance of the upstream diversion device capacity.
✓ Install slope drain down the slope, extending beyond toe of slope
✓ Install flared end or t -section at pipe inlet. Section should be well entrenched and stable so water
can enter freely.
✓ Compact fill over and around pipe in area of diversion device
✓ Ensure that all pipe connections are secure and watertight
✓ Securely anchor the exposed section of the drain with stakes
V Install flared end section at pipe outlet — discharge into a sediment trap or other stabilized outlet
O&M PROCEDURES:
V Inspect every week and after every storm
✓ Remove sediment and trash accumulation at inlet
✓ Repair settlement, cracking, or piping holes
✓ Repair leaks or inadequate anchoring along pipe
V Remove sediment and stabilize eroded areas at outlet — extend if necessary
B-21
SITE CONDITIONS FOR REMOVAL:
Remove concurrently with upstream diversion device, immediately prior to permanent vegetation of
slope
TYPICAL DETAIL B-22
B-22
NEW
REVISIONS
7128/08
( (LOW
EXCAVATED AREA TO
PROVIDE ADEQUATE
ti1'llll
t
lr l
t(. 0 -, r.--; COVER OVER INLET
mss-111=II SECTION, IF NEEDED
i��Ei iI_fsi_ E
�Illlll1111141�Ifllllll �;` l
.
DROP SECTION OF PIPE
� 1=f11
4'
—.--I
PERSPECTIVE
DIVERSION RIDGE
(SEPARATE BMP)
HOLD—DOWN
STAKES
ISLAND OVER
T —SECTION INLET
10' SPACING "?�^�'!'•;"•.
PIPE SEE PLAN FOR
i
—
TYPE & SIZE (TYP-)
M
INLET
LEVEL
SECTION
STABILIZED
OUTLET
?`I
i
1- `
111
'
T�
Bt.s=
I'
- SURFACE
PROFILE
` 2' MIN. (OPTIONAL
T —SECTION)
OF FILL
4' MIN.
TOP OF
DIVERSION 1, 1' MIN.
6" MIN
I
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
w
'
:• w . .- 3.1 MAX
v..w,, N� FLOW
TYPICAL BMP DETAIL
FLOW
TEMPORARY
DIVERSION
1.5' MIN.
SLOPE DRAIN
CHANNEL
OPTIONAL T -SECTION ELEVATION
DRAWING B-22
STREAM BANK PROTECTION
PHYSICAL DESCRIPTION:
A vegetative, structural or combination treatment of streams designed to stabilize the stream and
reduce erosion. It is important to note that a systemic analysis of the entire reach of stream must be
conducted in order to avoid unintended negative impacts on a stream as a result of a corrective action
at an isolated location. A wide array of products and methodologies can be used to stabilize streams:
live stakes; cellular confinement matrices; articulated block pavers; rip rap; gabion baskets; turf
reinforcement mats; fabric formed revetments; cedar tree revetments; straw wattles; grade control
structures; stilling basins; etc.
WHERE BMP IS TO BE INSTALLED:
Open channels downstream from developed areas.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Acceptable methods vary widely due to the unique nature of each reach of channel. Design
considerations include: current and future watershed conditions; discharge; velocity; sediment load;
channel slope; control of bottom scour (incising); soil conditions; compatibility with other improvements;
changes in channel alignment; and protection and maintenance of fish and wildlife habitats and existing
tree canopy.
WHEN BMP IS TO BE INSTALLED:
Well in advance of disturbing any upstream areas in order to give plant material a relatively long period
to become established and allow ample time for inspection and necessary repairs during construction
of the remainder of the development.
INSTALLATION/CONSTRUCTION PROCEDURES:
Procedures are specific to materials used. General construction principles include:
✓ Stabilize the channel bottom first to prevent incising and knick points from undermining the bank
protection
✓ Start and stop bank protection at stable points along the channel
✓ Minimize the size of all disturbed areas and stabilize as soon as each phase of construction is
complete
✓ Use other BMP's to prevent runoff from disturbing the stream bank protection area until it has
been completed
/ Store all construction materials well away from the stream
✓ At the end of each workday, move all construction equipment out of and away from the stream to
prevent flooding
/ Avoid steep slopes on the stream bank
✓ Fence the construction area and post warning signs if trespassing or vandalism is likely
B-23
O&M PROCEDURES:
✓ Inspect every week and after every storm during construction; and once each season thereafter
✓ Repair, relocate, or add BMP's protecting channel until the stream bank protection is operational
✓ Remove sediment as needed for proper establishment of protection measures
✓ Repair gaps in vegetative cover by replacing plants or designing alternative methods/materials
✓ Repair structural systems as needed
SITE CONDITIONS FOR REMOVAL: Not Applicable
TYPICAL DETAILS: Not Applicable
B-24
CHECK DAM
PHYSICAL DESCRIPTION:
A small dam built within a drainage swale or temporary diversion channel designed to pond water and
cause sediment to settle out. Dams can be constructed of rock, sand bags or gravel bags.
WHERE BMP IS TO BE INSTALLED:
At intervals along drainage swales or channels. The top of the downstream check dam should be level
with the base of the upstream check dam.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow:
Contributing Area:
Channel Slope:
Moderate concentrated flow
Maximum of 2 acres
Maximum of 2%
WHEN BMP IS TO BE INSTALLED:
Prior to disturbance of natural vegetation in contributing drainage area; immediately after construction
of drainage way
INSTALLATION/CONSTRUCTION PROCEDURES:
✓ Grade drainage way and compact area of check dam
✓ Place rock, sand bags or gravel bags to required configuration perpendicular to flow
O&M PROCEDURES:
✓ Inspect every week and after every storm
✓ Remove trash and leaf accumulation
✓ Remove sediment buildup once it reaches 1/2 depth of check dam or 12" depth, whichever is less
✓ Restore dam structure to original configuration to protect banks
✓ Replace rock on upstream face of dam if ponding does not drain in reasonable timeframe
SITE CONDITIONS FOR REMOVAL:
Remove after contributing drainage areas have been adequately stabilized and vegetation is
adequately established in drainage way. Regrade and vegetate area of check dam.
TYPICAL DETAIL: B - 25
B-25
NEW
REVISIONS
7/28/08
LEVEL CENTER
SECTION, WITH 6" - 12"
RISE ON BOTH SIDES
TO CAUSE FLOW OVER,
NOT AROUND,
• FABRIC AND APRON INSTALLED
ON LAST CHECK DAM IN NEWLY
SEEDED AREAS.
2"-3" WASHED STONE
CHECK DAM
6" MINIMUM
APRON' 3:1 SLOPE
-- 6-` FLOW
!
1'•3
FABRIC'
WOVEN FABRIC" APRON" 18"
(MIRAFI 600X I LENGTH
OR EQUAL) = 2X HEIGHT
OF DAM
CROSS SECTION PROFILE
ROCK CHECK DAM
SAND BAG OR
6" MINIMUM GRAVEL BAG
-ql-
-IT1-'
CROSS SECTION
60 DEGREES
MAXXy" GENERAL NOTES
FLOW !�
-
1•,3• 1. NUMBER OF BAGS AND ARRANGEMENT
MAY VARY WITH ON -SITE CONDITIONS.
11=
2. SEE GRAVEL BAG BMP FOR ADDITIONAL
1 INFORMATION.
18' 18"
WOVEN FABRIC'
PROFILE (MIRAFI 600X OR
EQUAL)
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
SAND BAG OR GRAVEL BAG
TYPICAL BMP DETAIL
CHECK DAM
CHECK DAM
DRAWING B-25
1
DIVERSION - RIDGE & CHANNEL
PHYSICAL DESCRIPTION:
A compacted earth or gravel ridge, excavated channel or a combination of ridge and channel designed
to direct runoff away from or around disturbed areas and cause sediment to settle out. Diversions built
on a level contour are used in combination with temporary slope drains to provide adequate
conveyance. Diversions built with positive drainage slopes release runoff into additional BMP's such as
sediment traps or level spreaders. BMP's such as check dams can also be used in diversion channels
to slow velocities.
WHERE BMP IS TO BE INSTALLED:
At top of disturbed slopes and other sensitive areas to protect them from upstream runoff, intermediate
locations along long slopes to reduce slope length, and perimeter of construction area
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Sheet flow and low -volume concentrated flows
Contributing Area: Contributing slope length — 300 feet maximum; 100 feet for slopes greater
than 5%
Channel Lining: Diversions of slopes exceeding 5% should be lined with gravel or other
material due to high velocity
WHEN BMP IS TO BE INSTALLED:
Prior to disturbance of natural vegetation on slopes and at intervals during construction of fill slopes
INSTALLATION/CONSTRUCTION PROCEDURES:
✓ Grade and compact channel and/or ridge
✓ Install vegetation or protective lining
✓ Stabilize outfall area as depicted on plan
✓ Install lathe or post at each end of diversion, and at 20 -foot intervals. Mark maximum allowable
sediment depth at 1/2 the depth of the channel
O&M PROCEDURES:
V Inspect every week and after every storm
✓ Remove sediment once sediment reaches 'A design depth, as indicated on monitoring posts
✓ Remove any trash accumulation
✓ Repair, revegetate or stabilize any erosion damage
SITE CONDITIONS FOR REMOVAL:
After permanent vegetation of slope is established
TYPICAL DETAIL: B - 26
B-26
NEW
7/28/08
REVISIONS
11 i
11
TYPICAL PERIMETER PROTECTION
Ih
8" FREEBOARD
2'
CROSS-SECTION
c10% SETTLEMENT
2:1 SLOPE
MAX. (TYP.)
'- COMPACTED SOIL
OR 2" MINUS STONE
ALL SURFACES STABILIZED WITH MULCH, SEED OR GRAVEL
�011�C1'lf ril'i`
I1
(FLOW
N
NOTE: SEE TEMPORARY
SLOPE DRAIN BMP FOR
ADDITIONAL INFORMATION
EXCAVATED AREA TO PROVIDE ADEQUATE
COVER OVER INLET SECTION, IF NEEDED
l Ithi r -0
r_IF•il _li'e'f•
zzlig
DROP SECTION
OF PIPE
TYPICAL TOP OF
SLOPE INSTALLATION
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
TEMPORARY DIVERSIONS -
RIDGE AND CHANNEL
DRAWING B-26
GRASS LINED CHANNEL
PHYSICAL DESCRIPTION:
Trapezoidal or parabolic stormwater conveyance channel lined with vegetation, designed to direct
runoff and reduce the flow velocity of concentrated runoff. Channels should outlet into sediment traps,
detention/retention basins, or other stable outlets. In areas with seasonally high water tables or
seepage problems, subsurface drains are included under the channel. Grassed channels have a limited
ability to control runoff from large storms and are often used in combination with other BMP's, such as
subsurface drains and riprap stabilization.
WHERE BMP IS TO BE INSTALLED:
Used in areas where erosion -resistant conveyances are needed, including areas with highly erodible
soils and moderately steep channel slopes - less than 5%. Channels should only be installed where
space is available for a relatively large cross section. Channels should not make sharp, unnatural
changes in direction or grade of flow.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Type of Flow: Concentrated flow
Flow Properties: Maximum velocity of 5 fps
WHEN BMP IS TO BE INSTALLED:.
Immediately after clearing, prior to upstream grading activities.
INSTALLATION/CONSTRUCTION PROCEDURES:
✓ Excavate and shape channel to required section
✓ Install subsurface drain, if needed
✓ Install erosion resistant lining, such as rip -rap or sod, at concentrated inflow points
✓ Prepare and fertilize soil
✓ Install sod, seed with protection such as erosion control blankets or turf reinforcement mats, or
hydro seeding
✓ Sod should be perpendicular to flow, with a brick -like joint pattern. Stake, staple and/or net
corners and centers of sod strips as required.
✓ Install lathe or post at each end of channel, and at 20 -foot intervals. Mark maximum allowable
sediment depth at 6 inches.
✓ Water immediately after installation - enough to soak 4 inches into soil without causing runoff.
B-27
O&M PROCEDURES:
/ Water sod daily for 3 weeks - enough to soak 4 inches into soil without causing runoff
/ Inspect every week and after every storm for the duration of construction or 6 months, whichever
is longer
/ Remove any blockage and or debris from channel, channel outlet or road crossings
V Reposition areas of sod that have moved
/ Remove sediment accumulation once sediment reaches 6" in depth, as indicated on the
monitoring posts — replace vegetation if necessary
✓ Repair any eroded areas, revegetate, and stabilize as needed
/ Do not mow until 3 inches of new growth occurs During the first 4 months, do not mow more than
1/3 the grass height.
SITE CONDITIONS FOR REMOVAL:
Temporary channels can be removed after permanent storm sewer system is operational.
TYPICAL DETAIL: B - 28
B-28
NEW
REVISIONS
7/28/08
DESIGN WIDTH, SEE PLAN
I
MAX SLOPE 3:1
i{Ii A
i�EnE_
�9 --J 141_
�l'—II
= II
i 1
--.1�1E�J�:11
— 1-- —'l
L
DESIGN DEPTH, SEE PLAN
i 1 Ir r. ]• ,1. •'i
, ;HMI
••' ' (II LLF1W=[III•
ItriiF I —1
• — I it it _ —ni=T
fill�I
—T— r
[V �
•'--11
HT
± ,II
rl �I��-I
T'I-_}i--f -9/
I IF -IT
IF IT II
r ii
117" .-1 I=:
',i�:=JJ-, j�j--
'l- Ic
l� -. 111
-7�i-;,11 i- it -ll •',�
BOTTOM
"-'1.=:til 1!1 1�f-;�l
�
—
---iTI I'i7[..H l `•
1I=T FI,.F 1 i`
l'- IL' -1I I1-
_ EII ::I F),I_1
WIDTH
f
i s =11 =1 WI 1 I _15 ]
"611:1�-lll• 111 I- If jji.
•-IiI-Ep1 `-N rr
1 1ll�IIF 'r
i=
OPTIONAL
SEE PLAN
ELEVATION
SUBSURFACE DRAIN
6" MIN.
f ti(g; cl'ilVilli l _L
rllrfit;lll lll_-1�1— 4
=IIf'--IIl=ill-!I-'I1-1,I=
24"
MIN
12" MIN.
•
J
1" CLEAN ROCK
NON -WOVEN FABRIC (MIRAFI 160N OR EQUAL)
/ AROUND TRENCH WITH 6" OVERLAP
- 4" SLOTTED PVC OR EQUIVALENT
OPTIONAL
6" MIN.
SUBSURFACE DRAIN
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
GRASSED LINED
CHANNEL
DRAWING B-28
WASIDOWN STATION
PHYSICAL DESCRIPTION:
An area located at construction entrances designed to wash sediment from the tires and undercarriage
of exiting vehicles and prevent sediment from being tracked onto existing roadways,
WHERE BMP IS TO BE INSTALLED:
Across or immediately adjacent to exit paths from unpaved construction sites.
CONDITIONS FOR EFFECTIVE USE OF BMP:
Drainage: Downstream BMP sized to treat dirty runoff from washdown station
WHEN BMP IS TO BE INSTALLED:
First order of work, along with construction entrance, prior to vehicles or equipment accessing unpaved
areas
INSTALLATIONICONSTRUCTION PROCEDURES:
✓ Grade and compact area for drainage under washdown pad
✓ Install steel -ribbed plate on frame or other support to allow a 2" drain space
✓ Grade and vegetate downstream BMP (v -ditch shown on detail)
✓ Install water supply and hose
✓ Post sign in advance of station indicating that all exiting vehicles and equipment must use station
prior to exiting site
O&M PROCEDURES:
✓ Remove sediment daily
✓ Repair settled areas
✓ Replace rock if necessary to maintain clean surface
SITE CONDITIONS FOR REMOVAL:
Remove when vehicles and equipment will no longer access unpaved areas
TYPICAL DETAIL: B - 29
B-29
NEW
REVISIONS
7128108
J
1' MINIMUM V -DITCH WITH
P .�
b.9 a
aR, ---- a
R
QPA ,,� 'i2 �•/
O�G ��. •
-`.*
2:1 SIDE SLOPES TO CARRY
RUNOFF TO A SEDIMENT
TRAPPING DEVICE
"SCRAPE AND
/ WASH TIRES AND
UNDERCARRIAGE
- PRIOR TO ENTERING
ROADWAY
aGG(a,p
q 0
-,..;G'6 WASH
4A� RACK ''',..,-9/?
4�G' 56,
PLAN VIEW
if
s
WATER SUPPLY
AND HOSE
a
25' MIN.
STEEL RIBBED PANELS SUPPORT
2" DRAIN
SPACE
: ,1.;4._J... s, cic '�.7r •C�,' ajar.•' .. _
�r"1--244-ice .. r�
,
8" MIN.
TYPE 5 AGGREGATE
SECTION A -A
14' MIN. FOR EGRESS
24' MIN. FOR INGRESS AND EGRESS
TYPE 5 AGGREGATE
,ter;srwti,,+e �rc-I
8" MIN.
ORIGINAL GRADE
SECTION B -B
CITY OF WEBSTER GROVES
DEPARTMENT OF PUBLIC WORKS
WEBSTER GROVES, MISSOURI
TYPICAL BMP DETAIL
WASHDOWN
STATION
DRAWING B - 29
Appendix C
Corps of Engineers 404 Permit & MDNR 401 Certification
All construction or maintenance activities that excavate in or discharge any dredge or fill material
into a "water of the United States" requires a Corps of Engineers 404 permit and a Missouri
Department of Natural Resources (MDNR) 401 water quality certification. The permitting and
certification process is shared between the Corps and the MDNR.
If you are considering a project that may involve placing materials in a lake, river, stream, ditch
or wetland (including dry streams, ditches or wetlands) contact the Corps to find out if the project
you are planning is in jurisdictional waters and is a regulated activity. The Corps has the sole
authority to determine whether the activity is regulated; whether a site specific, individual 404
permit is required, or whether a Nationwide Permit (NWP) applies for projects with minor
impacts. If a NWP does apply, contacting the Corps of Engineers is recommended to determine
thresholds for notification under the NWP, and to obtain additional regional requirements
imposed by the Corps' St. Louis Office.
The MDNR requires any project that needs a 404 permit from the Corps (individual or NWP) to
also obtain a 401 Water Quality Certification from MDNR. The 401 Certification is verification
by the state that the project will not violate water quality standards. The department may require
actions on projects to protect water quality in the form of certification conditions. For some of
the NWPs, the MDNR has published their conditions that must be met in addition to the NWP
conditions.
After you contact the Corps about your project and, if applicable, submit an application, they will
send you a letter authorizing your project under a particular permit. If the Corp's letter to you
indicates that you must obtain an individual 401 Certification, you must send an application to
MDNR also. If they state that MDNR has "conditionally certified" your activity, and have
enclosed certification conditions, then nothing further is needed.
Questions about permit applicability and procedures for obtaining individual permits can be
found by calling the Corps of Engineers at 314-331-8575 or 314-331-8186. Permit application
forms and procedures for applying to the Corps and the MDNR can be found on the following
web pages:
http://mvs.usace.army.mil/permits/permitaap.htm
http://www.dnr.mo.gov/wpscd/wpcp/401.htm#general
The following is a list of NWPs commonly applicable to municipal operations. For most of these
NWPs, the MDNR has conditionally certified these activities. The NWPs will list numerous
thresholds for applicability and notification in terms of linear feet and acreage of the project.
• NWP 3 Maintenance — repair or replacement of an existing structure, and removal of
accumulated sediment or placement of riprap to protect a structure.
• NWP 7 Outfall Structures — construction of new outfall and intake structures, and
removal of accumulated sediment blocking these structures.
• NPW 12 Utility Lines — construction, maintenance, and repair of utility lines (sewer,
water, electric or communication), including outfalls and excavations for the utility line.
• NPW 13 Bank Stabilization — stabilization projects for erosion protection.