HomeMy WebLinkAboutCB063183; Vons-Modify Parking Lot; Storm Water Management Plan; 2007-10-29/Ei AMPAK CIVIL ENGINEERING, INC.
Consulting Engineers
9420 Topanga Canyon Blvd. Suite 201
Chatsworth, California 91311
T: (818) 700-9729, F: (818) 700-8548
Email: ampakcivil@yahoo.com
October 29, 2007
City of Carlsbad
1635 Faraday Avenue
Carlsbad, CA 92008
Attn.: TecIa Levy
Subject: Vons #2343 - 985 Tamarack Avenue
SWMP No. 070023
Dear Ms. Levy:
Enclosed please find three revised sets of the SWMP for the subject project. Please note the
following revisions:
• The SWMP has been signed. All three copies have the wet stamp and signature.
• Per the telephone conversation, the first paragraph on Page 1 has been revised to
indicate resurfacing instead of adding parking areas.
• According to your instruction, source control BMPs have been implemented. The
enclosed Grading Plan (Sheet C-1.4) has been revised to indicate runoff passing
through the planters before entering the storm drain system. This is shown as openings
within the curb face (1' typical), indicated by Note No. 25. Also, along the proposed
planter along the westerly side of the parking lot, curb openings at 10' on center have
been proposed to allow runoff to enter into the planter before entering the concrete
gutter. This is indicated by Note No. 26. This will allow some runoff to be filtered before
entering the storm drain system.
I would like to ask you to please remove the "Hydrology Study" Plan from the previous prints of
the SWMP and insert them into the revised prints that you now have. Thank you for your help.
Should you need any further information, please feel free to contact the undersigned.
Sincerely,
4 —
I
Jamshecl 1. Yazdani, P.E.
President
JIY/ag
Vons 2343-985 Tamarack Ave., Carlsbad Q 4 C
SWMP 070023 rage i or 1
STORM WATER MANAGEMENT PLAN
(SWMP)
In compliance with City of Carlsbad SUSMP Requirements
FOR
Plan Check No.: CB 063183
Vons Store No. 2343
AT
985 Tamarack Avenue
Carlsbad, California
Prepared for:
Vons Stores
618 Michillinda Ave.
Arcadia, CA 91007
Prepared: July 2007
Revised: October 2007
Prepared by:
AMPAK CIVIL ENGINEERING, INC.
9420 Topanga Canyon Blvd. #201
Chatsworth, California 91311
T: (818) 700-9729, F: (818) 700-8548
Storm Water Management Plan
Vons Store no. 2343
985 Tamarack Ave., Carlsbad
TABLE OF CONTENTS
1.0 INTRODUCTION 1
2.0 PROJECT DESCRIPTION 1
3.0 POST-CONSTRUCTION STORM WATER MANAGEMENT. 1
4.0 MAINTENANCE, INSPECTION & REPAIR. 3
5.0 STRUCTURAL BMP MAINTENANCE RESPONSIBILITY MATRIX. 4
6.0 NON-STRUCTURAL BMP MAINTENANCE RESPONSIBILITY MATRIX 5
7.0 PROJECT DIRECTORY 6
LIST OF FIGURES
Figure 1: Vicinity Map
APPENDIX "A": Hydrology Calculations
APPENDIX "B": BMP Cut Sheet
LIST OF PLANS:
Grading and Drainage Plan
Hydrology Study
STORM WATER MITIGATION PLAN (SWMP)
1,0 INTRODUCTION
AMPAK Civil Engineering, Inc. was retained by Vons Architects to prepare a Storm
Water Mitigation Plan (SWMP) in accordance with the City of Carlsbad SUSMP Requirements
for Minor Modifications within the parking lot of the existing Vons Store No. 2343, located at
985 Tamarack Avenue, in the city of Carlsbad. The objectives of the SWMP are to control the
discharge of pollutants from the site and to identify and provide practical guidance to assist in
implementation of post-construction BMPs, which are intended to reduce the amount of
pollutants contained in storm water after construction. According to the City of Carlsbad Order
No. 2001-01, page 16 of 52, paragraph (a), this project proposes to resurface at least 5,000 sq. ft.
of impervious surface. Therefore, it is classified as a priority project to which SUSMP
requirements apply.
2.0 PROJECT DESCRIPTION
Vons proposes to tmdertake minor parking lot modification within an existing store
located at 985 Tamarack Ave. Grading for the project is proposed to start November 2007.
Construction of the project is expected to complete by March 2008. Vons, the developer of the
property is not aware of any toxic materials, which may have been treated, stored, disposed,
spilled or leaked in significant quantities at this site. The site is currently fully developed.
3.0 WATER QUALITY TREATMENT REPORT (SWMP)
(1) Peak Storm Water Discharge Rates:
The project will maintain the existing drainage condition; therefore, the post-
development discharge will not exceed the pre-development flow.
(2) Conservation of Natural Areas:
The site is currently fully developed; as such, it does not have natural areas to be
conserved.
(3) Minimize Storm Water Pollutants of Concern:
Best Management Practices (BMPs) have been introduced to minimize the introduction
of pollutants that may result in significant impacts generated from site run-off of directly
connected impervious areas (DCIA), to the storm water conveyance system. In attempting to
minimize the pollutants of concern, BMPs have been selected to maximize the reduction of
pollutant loadings in the runoff to the maximum extent practicable.
The BMPs selected for this purpose are as follows:
(a) Landscaping (Califomia BMP TC-30): As seen on the Grading Plan, landscaped
areas have been proposed so that some precipitation may be absorbed in the
ground. This will provide natural filtration to remove harmful pollutants to some
extent before entering the on-site storm drain system. This will reduce some strain
on the on-site catch basin filter inserts.
(b) Catch Basin Filters (California BMP MP-51): Abtech Industries' Ultra Urban Filter
Insert Model C01414N will be installed within the existing curb-opening catch
basins. These filters will absorb hydrocarbons, trash, debris as well as bacteria,
from storm water run-off before it enters the catch basin. Cut sheet including
Date Prepared: 8-18-07 1 Date Revised: 10-18-07
storm Water Mitigation Plan
Vons Store No. 2343
985 Tamarack Ave., Carlsbad, CA
installation and operation and maintenance guide from the manufacturer is
included in this SWMP.
The BMPs described above can substantially reduce pollutants from storm water runoff
before entering the onsite storm drain system.
(4) Protect Slopes and Channels
Subject site is not located on a hillside, or in the vicinity of any drainage channels.
Therefore, slope and channel protection is not necessary.
(5) Storm Drain Stenciling and Signage:
Storm drain signs and stencils (California BMP SD-13) are highly visible source controls
that area typically placed directly adjacent to storm drain inlets. They are placed to discourage
illegal dumping in to the catch basin. The stencils will be placed by the contractor and
inspected by the city inspector. All catch basins within the project site shall be legibly stenciled
with the message "NO DUMPING - DRAINS TO OCEAN".
(6) Outdoor Material Storage Areas:
Vons does not propose to store any material outdoors. All food items or ingredients
shall be stored indoors under controlled conditions.
(7) Trash Enclosure Areas:
Trash enclosures are receptacles intended for use as a repository for solid wastes. Loose
trash and debris can be easily transported by the forces of wind or water into the storm drain
system. Trash enclosures shall be covered to prevent precipitation from entering trash
dumpsters. In addition, trash enclosure areas shall be walled to prevent off-site transport of
trash.
Trash enclosures will be kept clean and free of debris. Spills will be immediately
contained and cleaned up. Warning signs prohibiting the dumping of chemicals, oils, or
solvents shall be posted on the dumpsters. Spill response procedures will be posted, cleanup
materials for minor spills, well maintained, containers for spent absorbent material will be
made available, and employees will be instructed in spill containment and cleanup procedures.
Spent absorbent material will be managed appropriately and disposed in accordance with
applicable regulations.
(10) Design of Structural BMPs:
Hydrology Calculations are shown in Appendix "A". The calculations are used to
determine the adequacy of the post-construction BMP (Abtech Industries' Model C01414N
Filter Unit) for this project. Post construction structural control BMP is sized on a flow-based
design, in accordance with the City of Carlsbad SUSMP requirements. The expected maximum
peak mitigated flow (Qpm) is calculated using San Diego County Hydrology. The attached
calculations show the Qpm to be 0.43 cfs which converts to 193 gpm. The proposed Abtech
Industries' Model C01414N Filter Unit has a capacity of 200 gpm. From the calculations shown
in Appendix "A", it can be seen that the filter specified is adequate for the flow.
(11) Provision Applicable to Priority Project Categories:
Vons shall perform the following to ensure that the parking area is free from trash and
debris:
Date Prepared: 8-18-07 2 Date Revised: 10-18-07
Storm Water Mitigation Plan
Vons Store No. 2343
985 Tamarack Ave., Carlsbad, CA
a) Primary Pollutants of Concern
Parking Lots: Parking lots contain pollutants such as oil and grease, and hydrocarbons
that are deposited on the surface by motor vehicles. These pollutants have the potential of
being directly tiansported to surface waters and into the storm drain system. In order to
prevent such pollutants from entering the storm drain system, Abtech Industries' filter unit
will be installed. In addition to tiash and debris, this filter unit will also absorb
hydrocarbons from the runoff.
b) Secondary Pollutants of Concern
Remove food waste, rubbish, or other materials from parking lot areas in a sanitary
manner that does not create a nuisance, or discharge into the on-site or off-site storm drain
system.
c) Educate and tiain employees/workers on storm water pollution prevention practices.
(12) Certification of Storm Water Treatment Mitigation:
The calculations presented in Appendix "A" verify the adequacy of the stiuctural
contiol BMP employed for this project. Therefore, an alternative certification to this effect is not
required.
(13) Resources and References:
The BMPs used for this project are attached as Appendix "B". Further information
regarding those and other BMPs may be obtained from visiting the BMP web site at
www.cabmphandbooks.org.
4. MAINTENANCE, INSPECTION & REPAIR OF POST-CONCTRUCTION BMPs
The effectiveness and the condition of the post-constiuction BMPs shall be evaluated
during regular site inspections. The owner or designated maintenance staff shall evaluate
whether additional practices are needed to reduce pollutants of concern. The designated
maintenance staff shall recommend any necessary repairs for the drainage system. A record of
the inspections shall include the date, the individual(s) performing the inspection, and the
observations. Listed below are the main items, which are to be inspected, and the frequency at
which the inspection will be conducted. The BMP implementation matiices on the following
pages provide a guide into maintenance, inspection & repair of the BMPs.
Date Prepared: 8-18-07 J Date Revised: 10-18-07
Storm Water Mitigation Plan
Vons Store No. 2343
985 Tamarack Ave., Carlsbad, CA
5.0 POST-DEVELOPMENT BEST MANAGEMENT PRACTICES
STRUCTURAL BMP MAINTENANCE RESPONSIBILITY/FREQUENCY MATRIX
BMP Description Responsibility Activity & Frequency
Filtiation
(Post-Constiuction) Owner
Once a week and when there is a 40% chance of
rain in the 5-day forecast, and curing and after
an actual storm. Verify landscaped common
areas continue to provide filtiation.
Efficient Irrigation Owner
Once a week in conjunction with maintenance
activities. Verify that runoff minimizing
landscape design continues to function by
checking that water sensors are functioning
properly, that irrigation heads are adjusted
properly to eliminate over spray to hardscape
areas, and so verify that irrigation timing and
cycle lengths are adjusted in accordance with
water demands, given time of year, weather and
day or night time temperatures.
Runoff-Minimizing
Landscape Design Owner
Once a week in conjunction with maintenance
activities and prior to finalizing any planting
schemes. Verify that plants continue to be
grouped according to similar water requirements
in order to reduce excess irrigation runoff.
Off-site Transport
of Trash from
Dumpster Area
Owner / Designated
Maintenance Staff
Trash areas to have pavements sloped so as to
divert flow around the tiash enclosure areas. The
tiash enclosure will have a roof to prevent
rainwater from passing through the tiash
container.
Date Prepared: 8-18-07 Date Revised: 10-18-07
storm Water Mitigation Plan
Vons Store No. 2343
985 Tamarack Ave., Carlsbad, CA
6.0 POST-DEVELOPMENT BEST MANAGEMENT PRACTICES
NON-STRUCTURAL BMP MAINTENANCE RESPONSIBILITY/FREQUENCY
MATRIX
BMP Description Responsibility Activity & Frequency
Common Area
Landscape
Maintenance
Owner, through its landscape
management contiactor.
Monthly during regular
maintenance.
Common Area
Landscape
Management
Owner, through its landscape
management contiactor.
Ongoing maintenance consistent
with County Water Conservation
Resolution or City equivalent,
plus fertilizer and pesticide usage
consistent with County
Management Guidelines for Use
of Fertilizers and Pesticides, or
City equivalent.
Common Area
Litter Contiol
Owner, through its landscape
maintenance contiactor.
Monthly during regular
maintenance. Litter patiol,
emptying tiash receptacles,
noting tiash disposal violations
and reporting the violations.
Employee Training Owner, during constiuction period
through in-house seminars.
Minimum once every six months
to include educational materials
contained in the approved Storm
Water Pollution Prevention Plan.
Common Area
Inlet Inspection
Owner, for common area BMPs in
landscape areas.
Monthly during regular
maintenance. Inspection to verify
inlets and "V" gutters are clean
and increased inspection during
the rainy season (October 1st to
April 15* of the following year).
Private Stieet/Lot Owner
All paved area (not maintained
by the City of Carlsbad),
including but not limited to
private stieet and parking lots,
shall be cleaned and swept on a
regular basis. The use of water to
clean stieet, paved areas, parking
lots, and other areas and flushing
the debris and sediment down
the storm drains shall be
prohibited.
Date Prepared: 8-18-07 Date Revised: 10-18-07
Storm Water Mitigation Plan
Vons Store No. 2343
985 Tamai-ack Ave., Carlsbad, CA
7. PROJECT DIRECTORY
Owner / Developer
Civil Engineer
Contiactor
Vons Stores
618 Michillinda Ave.
Arcadia, CA 91007
Attn.: Yvette Valencia
Ampak Civil Engineering, Inc.
9420 Topanga Canyon Blvd. #201
Chatsworth, California 91311
Tel.: (818) 700-9729
Attn.: Jamshed I. Yazdani, P.E.
Not Available at this time.
Date Prepared: 8-18-07 Date Revised: 10-18-07
PROJECT SITE
CITY OF OCEANSIDE
HIGHWAY
NOT TO
SCALE
CITY OF VISTA
CITY OF
SAN MARCOS
PACIFIC
OCEAN
CITY OF ENCINITAS
FIGURE 1: VICINITY MAP
APPENDIX "M
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County of San Diego
Hydrology Manual
Soil Hydrologic Groups
Legend
Soil Groups
|; j Group A
• xi Group C
[ "i'"] Undetermined
Data Unavailable
SOIL ^P- "<=•'
DPW
3 0 3 Miles
San Diego County Hydrology Manual
Date: June 2003 Section:
Page:
3
6 of 26
Table 3-1
RUNOFF COEFFICIENTS FOR URBAN AREAS
Land Use
NRCS Elements County Elements
Undisturbed Natural Terrain (Natural)
Low Density Residential (LDR)
Low Density Residential (LDR)
Low Density Residential (LDR)
Medium Density Residential (MDR)
Medium Density Residential (MDR)
Medium Density Residential (MDR)
Medium Density Residential (MDR)
High Density Residential (HDR)
High Density Residential (HDR)
-Commercial/Industrial (N. Com)
CommerciaUIndustrial (G. Com)
Commercial/Industrial (O.P. Com)
Commercial/Industrial (Limited I.)
Commercial/Industrial (General I.)
Permanent Open Space
Residential, 1.0 DU/A or less
Residential, 2.0 DU/A or less
ResidentiaL 2.9 DU/A or less
ResidentiaL 4.3 DU/A or less
ResidentiaL 7.3 DU/A or less
Residential, 10.9 DU/A or less
ResidentiaL 14.5 DU/A or less
ResidentiaL 24.0 DU/A or less
ResidentiaL 43.0 DU/A or less
Neighborhood Commercial
General Commercial
Office Professional/Commercial
Limited Industi-ial
General Industrial
Runoff Coefficient "C"
Soil Type
% IMPER. A B C D
0* 0.20 0.25 0.30 0.35
10 0.27 0.32 0.36 0.41
20 0.34 0.38 0.42 0.46
25 0.38 0.41 0.45 0.49
30 0.41 0.45 0.48 0.52
40 0.48 0.51 0.54 0.57
45 0.52 0.54 0.57 0.60
50 0.55 0.58 0.60 0.63
65 0.66 0.67 0.69 0.71
80 0.76 0.77 0.78 0.79
80 0.76 0.77 0.78 0.79
85 0.80 0.80 0.81 0.82
90 0.83 0.84 0.84 0.85
90 0.83 0.84 0.84 0.85
95 0.87 0.87 0.87 0.87
*The values associated with 0% impervious may be used for direct calculation of the runoff coefficient as described in Section 3.1.2 (representing the pervious runoff
coefficient, Cp, for the soil type), or for areas that will remain undisturbed in perpetuity. Justification must be given that the area will remain natural forever (e.g., the area
is located in Cleveland National Forest).
DU/A = dwelling units per acre
NRCS = National Resources Conservation Service
3-6
San Diego County Hydrology Manual
Date: June 2003
Section:
Page:
3
12of26
Note that the Initial Time of Concentration should be reflective of the general land-use at the
upstream end of a drainage basin. A single lot with an area of two or less acres does not have
a significant effect where the drainage basin area is 20 to 600 acres.
Table 3-2 provides limits of the length (Maximum Length (LM)) of sheet flow to be used in
hydrology studies. Initial Ti values based on average C values for the Land Use Element are
also included. These values can be used in planning and design applications as described
below. Exceptions may be approved by the "Regulating Agency" when submitted with a
detailed study.
Table 3-2
MAXIMUM OVERLAND FLOW LENGTH (LM)
Element* DU/
Acre
.5% 1% 2% 3% 5% 10% Element* DU/
Acre LM Ti LM Ti LM Ti LM Ti LM Ti LM Ti
Natural 50 13.2 70 12.5 85 10.9 100 10.3 100 8.7 100 6.9
LDR 1 50 12.2 70 11.5 85 10.0 100 9.5 100 8.0 100 6.4
LDR 2 50 11.3 70 10.5 85 9.2 100 8.8 100 7.4 100 5.8
LDR 2.9 50 10.7 70 10.0 85 8.8 95 8.1 100 7.0 100 5.6
MDR 4.3 50 10.2 70 9.6 80 8.1 95 7.8 100 6.7 100 5.3
MDR 7.3 50 9.2 65 8.4 80 7.4 95 7.0 100 6.0 100 4.8
MDR 10.9 50 8.7 65 7.9 80 6.9 90 6.4 100 5.7 100 4.5
MDR 14.5 50 8.2 65 7.4 80 6.5 90 6.0 100 5.4 100 4.3
HDR 24 50 6.7 65 6.1 75 5.1 90 4.9 95 4.3 100 3.5
HDR 43 50 5.3 65 4.7 75 4.0 85 3.8 95 3.4 100 2.7
N. Com 50 5.3 60 4.5 75 4.0 85 3.8 95 3.4 100 2.7
G. Com 50 4.7 60 4.1 75 3.6 85 3.4 90 2.9 100 2.4
O.P./Com 50 4.2 60 3.7 70 3.1 80 2.9 90 2.6 100 2.2
Limited 1. 50 4.2 60 3.7 70 3.1 80 2.9 90 2.6 100 2.2
General 1. 50 3.7 60 3.2 70 2.7 80 2.6 90 2.3 100 1.9
*See Table 3-1 for more detailed description
3-12
32-30'
County of San Diego
Hydrology Manual
Rainfall Isopluvials
50 Year RainfaU Event - 6 Hours
Isopluvial (inches)
DPW
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County of San Diego
Hydrology Manual
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so Year Rainfall Event - 24 Hours
Isopluvial (inches)
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•:,&» lr)t0n$ity-Duraflon Design Chart - Template
FIG li R E
3-1
storm Water Standards
4/03/03
Table 3. Numeric Sizing Treatment Standards.
Volume
1. Volume-based BMPs shall be designed to mitigate (infiltrate, filter, or treat) the volume of runoff
produced from a 24-hour 85* percentile storm event, as determined from isopluvial maps
contained in the County of San Diego Hydrology Manual.
Flow
2. Flow-based BMPs shall be designed to mitigate (infiltrate, filter, or treat) the maximum flow rate
of runoff produced from a rainfall intensity of 0.2 inch of rainfall per hour for each hour of a storm
event.
/. Structural Treatment BMP Selection Procedure
Priority projects shall select a single or combination of treatment BMPs from the
categories in Table 4 that maximize pollutant removal for the particular pollutant(s) of
concern. Any pollutants the project is expected to generate that are also causing a
Clean Water Act section 303(d) impairment of the downstream receiving waters of the
project should be given top priority in selecting treatment BMPs.
To select a structural treatment BMP using the Structural Treatment Control BMP
Selection Matrix (Table 4), each priority project shall compare the list of pollutants for
which the downstream receiving waters are impaired (if any). According to the 1998
303(d) listing, the Agua Hedionda Lagoon is impaired for sediment and siltation. Buena
Vista Lagoon also has impaired beneficial uses (aquatic life) due to high
sedimentation/siltation. Portions of Carlsbad where construction sites have the potential
to discharge into a tributary of a 303(d) or directly into a 303(d) water body or sites
located within 200 feet of an ESA require additional BMP implementation. These water
bodies include the Pacific Ocean, Buena Vista Lagoon, Encinas Creek, Agua Hedionda
Lagoon, and Batiquitos Lagoon.
Priority projects that are not anticipated to generate a pollutant for which the receiving
water is Clean Water Act Section 303(d) impaired shall select a single or combination of
stmctural treatment BMPs from Table 4 that are effective for pollutant removal of the
identified pollutants of concern determined to be most significant for the project.
Selected BMPs must be effective for the widest range of pollutants of concern
anticipated to be generated by a priority project (as identified in Table 1).
Alternative storm water BMPs not identified in Table 4 may be approved at the
discretion of the City Engineer, provided the alternative BMP is as effective in removal
of pollutants of concem as other feasible BMPs listed in Table 4.
20
APPENDIX "B'
The Ultra-Urban® Filter with Smart Sponge®
developed and manufactured by AbTech Industries, is an innovative
low-cost BMP that helps meet NPDES requirements with effective
filtration, efficient application, and moderate maintenance. The
Ultra-Urban Filter absorbs oil and grease and captures trash and
sediment from Stormwater runoff before it enters the storm drain
system. The Ultra-Urban Filter Is ideal for municipal, industrial, and
construction applications. The filter comes in two standard designs;
one a modular unit geared toward curb inlet openings, and the
other, a single unit designed for typical drop-in catch basin drains.
The Ultra-Urban Filter, made of a high strength corrugated recycled
content plastic, is designed for use in storm drains that experience
oil and grease pollution accompanied by sediment and debris. Trash
and sediment accumulate in the upper basket chamber while oil and
grease are absorbed in the filtration media.
CE
Field and laboratory tests have confirmed the capability of the Smart Sponge to absorb, depending on the
type of oil contaminant, up to five times its own weight and remove 70% to 95% of the hydrocarbons
present In Stormwater runoff, typically in the range of 5 to 30 mg/liter (ppm). The captured oil is perma-
nently bound within the Smart Sponge, eliminating leaching and allowing for easy disposal of the filtration
media. Flow rates through the C01414 filters exceed 200 gpm. Flow rates through the filters exceed
500 gpm for the DI2020 series at installation.
The Ultra-Urban Filter is easily installed. Instal-
lation time varies depending upon mounting
devices selected. A single mounting bracket
made of 16-gauge galvanized steel is required
for the installation of the Curb Opening (CO)
series. The Ultra-Urban Filter should not be
installed where modules obstruct the drain pipe
outlet. The size of the drain should allow room
for stormwater overflow. The Drain Inlet (DI)
series Ultra-Urban Filter will suspend from the
drain into the catch basin through a structural
plastic mount and funnel mechanism (see draw-
ings).
The Ultra-Urban Filter should be serviced as needed to remove sediment and debris, according to
expected debris accumulation. The sediment and debris can be quickly vacuumed out of the modules
through the opening of the drain with conventional maintenance equipment. For example, a curb inlet
with four to five Ultra-Urban Filter modules can be typically serviced in 10 minutes or less. Under normal
operating conditions the Ultra-Urban Filter should be replaced every 1-3 years.
smarl 'ip'^nq^
AbTech developed the Smart Sponge technology based on Its proprie-
tary blend of synthetic polymers aimed at removal of hydrocarbons
and oil derivatives from surface water. AbTech's process creates a
very porous structure (see Figure A) with hydrophobic and oleophilic
characteristics capable of selectively removing hydrocarbons while al-
lowing high flow through rates for water. As hydrocarbons are ab-
sorbed into its structure, the Smart Sponge® swells and maintains po- Figure A (looox)
rosity and filtering capabilities.
Field and laboratory tests have confirmed the Smart Sponge capability to absorb, depending on the
type of oil contaminant, up to five times its own weight and remove 75% to 95% of the hydrocarbons
present in Stormwater runoff, typically in the range of 5 to 30 mg/liter (ppm). The absorption is per-
manent and the saturated product does not leach or leak contaminants, transforming the contami-
nant - in most cases - into a solid waste with lower disposal costs.
During the past couple of years, Ab-
Tech has worked on the development |
of an antimicrobial technology. |
Smart Sponge Plus features a pro-1
prietary antimicrobial agent chemi-1 •
cally and permanently bound to the rn
Smart Sponge polymer surface and i
therefore does not leach or leak, i . j
avoiding any downstream toxicity |
issues. The antimicrobial mechanism Figure B
is based on the patented agent's interaction with the microorganism
cell membrane, causing the microorganism disruption (see Figure C), but no chemical or physical
change in the agent. Antimicrobial activity does not reduce the agent capability or cause its depletion
and, therefore, maintains long-term effectiveness. Additionally, the hydrocarbon absorption capability
is not inhibited.
I Microbial reduction efficiency will vary depending on colony size, flow rates and site specific condi-
tions.
I Consistent positive reduction in microbial concentration realized in laboratory setting and field test-
ing sites in the United States.
Larger scaled field deployment and data generation projects are ongoing.
^'-fc
~Hc.t'\^rtcfM3 (Jo
Part #
Curb Open!
C01414N
COI. 414 H
Drain Inset
DI1414N
545 Ibs,
4.5 lbs.
ibs. 5.6 Ibs,
smaic
AbTech's Smart Sponge technology transforms liquid hydrocarbons into a stable
solid^ The handling and disposal of this solid waste is less expensive and less
problematic than that of other plastic and organic solvents which leach and leak
hydrocarbons back into the environment. The following waste disposal and resource
recovery industries will accept spent Smart Sponge for disposal and/or recycling.
I Waste-to-Energy Facilities - A specialized segment of the solid waste industry
will use spent Smart Sponge as an alternative fuel in the production of
electricity.
WTE is acknowledged at the federal level as a renewable energy source under
the Federal Power Act, Title IV of the Clean Air Act.
WTE is a participant in the Department of Energy's National Renewable
Energy Program.
• Cement Kilns - This industry will use the spent Smart Sponge as an alternative
fuel in the production process of Portland Cement. This process is considered a
beneficial reuse of waste products. The BTU value of spent Smart Sponge is
consistently above the average acceptable levels set for this high temperature.
• Landfills - The ability of Smart Sponge to transform liquid hydrocarbons into a
solid waste makes for less expensive and easy disposal. Spent Smart Sponge
generated from the AbTech laboratories have been classified as a solid waste and
are acceptable at Subtitle D Landfills^.
ABIech INDUSTRIES
Alilech Ultra-Urban® Filter CO Series
Application: Removal of Hydrocarbons, Trash, and Sediment
From Stormwater Runoff in Curb Opening Drains
Narrative Description
The Ultra-Urban® Filter with Smart Sponge® Inside, developed and manufactured by
AbTech Industries, is an innovative low-cost BMP that helps meet NPDES requirements
with effective filtration, efficient application, and moderate maintenance. The Ultra-Urban
Filter captures oil and grease, trash and sediment from stormwater runoff before it enters the
storm drain system. The Ultra-Urban Filter is ideal for municipal, industrial, and
construction applications. The filter comes in 2 standard designs, one a modular unit geared
toward curb openings, and the other, a single unit designed for typical drop in drains.
The Ultra-Urban Filter is designed for use in storm drains that experience oil and grease
pollution accompanied by sediment and debris. Trash and sediment accumulate in the upper
basket chamber while oil and grease is captured in the filtration media. Field tests have
proven that the proprietary Smart Sponge filtration media will remove up to 95% of the oil
and grease in stormwater runoff - from low concentrations typical of residential areas to high
levels associated with illegal dumping of used motor oil. The oil will permanently bond
within the Smart Sponge and become permanently encapsulated eliminating the possibilities
of leaching or leaking back into the environment.
Specifications
L=14 inches
W=14 inches
H=23 inches
Q=<200 gpm
Weight=27 lbs
Other sizes available
Lateral bypass
to adjacent
I
Sediment and
debris basket
Smart Sponge
Filtration Media
Front
,r,',- . . mountmg
'""^ , plate
Advantages and Benefits of the Ultra-Urban Filter
Removes oil, grease, trash and sediment
Modular design accommodates most storm drains
Smart Sponge media removes up to 95% of oil and grease in stormwater runoff
Quick and easy installation
Easy to maintain, can be serviced from street level
Cost effective BMP
Easy to handle because of its light weight
Recyclability
ULTRA-URBAN FILTER with SMART SPONGE® INSIDE
The Ultra-UrbanP Filter is made of a high strength corrugated plastic available for
retrofitting into curb opening (inlet) storm drains. The Ultra-Urban Filter, Series CO 1414
have perforated slots on each side of the module, which allow the installer the ability to
modify in the field to create the lateral overflow of stormwater to additional Ultra-Urban
Filter modules in the storm drain. In high flow situations, modules will allow stormwater
bypass to occur, eliminafing any possibility of flooding. All modules in the COH 14 series
have common outer dimensions of 14" x 14" x 23", as shown in the sketch above.
Performance
Independent testing (academic and field) has confirmed the ability of Ultra-Urban Filters to
remove up to 95% of the petroleum hydrocarbons contained in the stormwater. The captured
oil is permanently bound within the Smart Sponge, eliminating leaching and allowing for
easy disposal of the filtration media. In addition to oil and grease, each module has the ca-
pacity to capture debris and sediment. CO 1414 Flow rates through the filters exceed 200
gpm.
Installation Requirements
The Ultra-Urban Filter is easily installed in approximately one hour through a maintenance
access of at least 24 inches in diameter. For the Series COI 414 a single mounting bracket
made of 16-gauge galvanized steel is required for the installation. The bracket can be
attached to any vertical surface capable of supporting 250 pounds. The Ultra-Urban Filter
should not be installed where modules obstruct the drain pipe outlet. The size of the drain
should allow room for stormwater overflow. The previous sketches depict side views ofthe
Ultra-Urban Filters installed in storm drains and catch basins.
Maintenance and Filter Change-Out
The Ultra-Urban Filter should be serviced as needed to remove sediment and debris,
according to expected debris accumulation. The sediment and debris can be quickly
vacuumed out of the modules through the opening of the drain with conventional
maintenance equipment. For example, a curb inlet with four to five Ultra-Urban Filter
modules can be typically serviced in 10 minutes or less. Under normal operating conditions
the entire recyclable filter box should be replaced every 1-3 years.
ULTRA-URBAN FILTER with SMART SPONGE® INSIDE
Disposal Options
Smart Sponge® technology transforms liquid hydrocarbons into a stable solid. The handling
and disposal of this solid waste is less expensive and less problematic than that of other plas-
tic and organic solvents which will leach and leak hydrocarbons back into the environment.
The following waste disposal and resource recovery industries will accept spent Smart
Sponge for disposal and/or recycling.
• Waste-to-Energy Facilities - A specialized segment of the solid waste industry will use
spent Smart Sponge as an aitemative fuel in the production of electricity.
WTE is acknowledged at the federal level as a renewable energy source under the Federal
Power Act, Title IV of the Clean Air Act.
WTE is a participant in the Department of Energy's National Renewable Energy
Program.
• Cement Kilns - This industry will use the spent Smart Sponge as an aitemative fiiel in
the production process of Portland Cement. This process is considered a beneficial reuse
of waste products. The BTU value of spent Smart Sponge is consistently above the
average acceptable levels set for this high temperature.
• Landfills - The ability of Smart Sponge to transform liquid hydrocarbons into a solid
waste makes for less expensive and easy disposal. Spent Smart Sponge generated from
the AbTech laboratories have been classified as a solid waste and are acceptable at
Subtitle D Landfills^
'Generators of spent Smart Sponge will need to have their waste analyzed, tested, and classified to determine
the generators particular waste. According to testing performed for AbTech Industries, spent Smart Sponge
soaked with petroleum hydrocarbons are transformed into solid wastes. AbTech does not take any
responsibility for the generator's waste classification for handling, transport and the ultimate disposal or
recycling of the waste. The generator must always classify and characterize its own waste.
^ Spent Smart Sponge generated from the AbTech laboratories with a multitude of liquid petroleum
hydrocarbons have passed the EPA Toxicity Characteristic Leachate Procedures and Paint Filter Test. These
tests are used in determining the amount of liquid waste and any free liquids present that may be released into
the landfill environment.
ULTRA-URBAN FILTER with SMART SPONGE® INSIDE
Servicing Options
While certain customers may choose to install and maintain their own systems,
AbTech Industries can assist in arranging service options for installation,
maintenance, disposal and recycling of the Ultra-Urban Filter. Servicing
agreements are currently being negotiated with upper tier companies capable of
performing service in the most professional, environmentally-sensitive and
technically-sound manner available today. Rates for service will vary depending on
geographic area and amount of sediment collected. Contact AbTech Industries for
assistance in arranging service needs in your region at 800-545-8999.
For More information contact:
NDUSTRIEST
AJlJUa^h 4110 North Scottsdale Road, Suite 235
^ • , Scottsdale, Arizona 85251
(480)-874-4000 or (800)-545-8999
fax: (480)-970-1665
Email: info@abtechindustries.com
www.abtechindustries.com