HomeMy WebLinkAboutNPDES Residential Lot SWPPPSmall Residential Lot
Stormwater Pollution
Prevention Plan Template
Purpose of This Template
Introduction
To be covered under Iowa Natioinal Pollutant Discharge Elemination System General Permit No.2 (NPDES
GP2), all Developers / construction operators are required to develop a “Stormwater Pollution Prevention
Plan” (or “SWPPP”). Refer to Part IV of the NPDES GP2. The requirement to develop a SWPPP applies
equally to small-scale construction projects as it does to large-scale construction projects if the developing
lot is located within a NPDES GP2 covered development. However, the level of detail may vary depending
on the nature of a given project. A SWPPP for the construction of a single residential lot may require less
detail because such projects are often easily managed with basic best management practices (BMPs).
Moreover, these projects are relatively small and are usually completed relatively quickly. Where
documentation is required, it can be done in a relatively concise manner, as described in this document.
With that in mind, EPA has developed the Small Residential Lot SWPPP Template that has been modified to
incorpate the Iowa DNR's NPDES GP2 requirements.
Purpose
The Small Residential Lot SWPPP Template is a tool to help operators of small residential lot projects
develop SWPPP documents that are consistent with requirements in the NPDES GP2. The template was
designed with small residential lot projects in mind and therefore is not appropriate for other types of
construction projects. A project qualifies as a small residential lot project if it meets the qualifications
criteria in the “Who Can Use This Template” section below.
Use of this template is optional. Any operator of a small residential lot project may choose to complete a
SWPPP without using this template. If you determine that this template is appropriate for your small
residential lot construction project, you are still held responsible for meeting the conditions of the Iowa
NPDES GP2, including requirements to submit a Notice of Intent (NOI) to obtain permit coverage, to
perform routine site self-inspections, and to submit a Notice of Discontinuation (NOD) to discontinue
coverage once the project is completed and final stabilization has been met.
Using the Small Residential Lot SWPPP Template
This template is presented as an editable document file so one can easily add tables and additional text,
and delete unneeded or non-applicable fields. Each section of the Small Residential Lot SWPPP Template
includes prompts (in blue) to insert information about your project. You must complete all sections of this
template in order to comply with Part 4 of the NPDES GP2. Once completed, this Template will serve as
your project’s SWPPP.
Tips for ensuring that the minimum permit requirements are met:
o Read through this template and the NPDES GP2 thoroughly before preparing your SWPPP to ensure
that you have a working understanding of the permit’s underlying requirements.
o Complete this SWPPP template prior to submitting your NOI for permit coverage. This is required in
NPDES Parts II.C.1.G.(1).
o Once you obtain coverage under the NPDES GP2, include your NOI and Authorization Letter, as
well as a copy of the NPDES GP2, as attachments to the SWPPP.
While EPA has made every effort to ensure the accuracy of all instructions and guidance in this template,
the actual obligations of regulated construction activities are determined by the relevant provisions of the
permit, not by the template. In the event of a conflict between this template and any corresponding
provision of the NPDES GP2, you must comply with the requirements in the permit. The permit and
additional guidance are available at Iowa DNR Website. (Summary Guildance for GP No.2)
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Small Residential Lot Stormwater Pollution Prevention
Plan (SWPPP)
For Construction Activities At:
SWPPP Prepared For:
SWPPP Prepared By:
SWPPP Preparation Date:
SWPPP Revision Date (if applicable):
Project /Site Name:
Project Site Location/Address:
City, State, Zip Code:
Project/Site Contact Number:
Company or Organization Name:
Name:
Address:
City, State, Zip Code:
Contact Number:
Email:
Company or Organization Name:
Name:
Address:
City, State, Zip Code:
Contact Number:
Email:
ii
STEP 1:Review the Iowa DNR's NPDES GP2 Construction
STEP 2:
STEP 3:
Fill out all sections of this template.
Print and attach applicable BMP
specification sheets [see Appendix]
for the following three categories:
Appendix A: Erosion and Sediment Control
Specifications
Appendix B: Stabilization Control
Specifications
Appendix C: Pollution Prevention Practice
Specifications
Before proceeding, be advised that you will need to complete the
following steps before finalizing your Small Residential Lot SWPPP.
iii
Who Can Use This Template?
This template is designed for operators of “Small Residential Lot Projects” seeking coverage under the
NPDES GP2. Your project is a “Small Residential Lot Project” for the purposes of this template only if all of
the statements in the qualification checklist below are “true”. If your project does not meet all of these
qualifications, this template is not designed for your project and its use is not appropriate1.
Qualification Checklist for Use of This Template
1. My project is considered a SMALL RESIDENTIAL LOT PROJECT.
To be considered a “small residential lot project”, the following statements
must ALL be true (check all that apply):
☐ My project is limited to the construction of residential single family or
duplex dwellings; and
☐ The area of disturbance associated with each individual single family or
duplex dwelling in my project is < 1 acre; and
☐ I am not building more than 5 individual single family or duplex dwellings at
one time within the same common plan of development or sale; and
☐ I am not as part of this project responsible for the construction and/or
maintenance of roads (not including driveways) or storm sewer or ditch
network.
True False
2. My project is not located in a SENSITIVE AREA.
This will be true if ALL of the following statements are true:
☐ My project will not cause earth disturbances within 50 feet of a “water
of the U.S.”; and
☐ My project will not disturb “steep slopes” (however steep slopes are defined
in your locality); and
☐ My project will not discharge into an impaired water or a water identified by
the state or tribal authority as Tier 2, Tier 2.5, or Tier 32; and
☐ There are no threatened or endangered species or critical habitat in the
areas directly or indirectly affected by my project3; and
True False
1 If your answer is “false” for any question, you should not use this template. You may instead use EPA’s general SWPPP
template.
2 Note: To find if your project discharges to an impaired water, you can conduct a search using EPA’s discharge
mapping tool. To determine if you discharge to a Tier 2, 2.5, or Tier 3 water, refer to Appendix F of the 2012 CGP or
contact your state or tribal authority.
3 You will know this is true if you can check Criterion A in the threatened and endangered species eligibility section of
your NOI. See Appendix D of the CGP for further details.
4 Refer to site's orginal SWPPP and NPDES General Permit No.2 to ensure you meet the eligibility requirements
regarding the protection of historic properties and endanger speices.
iv
☐ There are no potential impacts to historic properties at my project. This will
be true if ONE of the following statements is true:4
☐ I am not installing any stormwater controls that require subsurface
earth disturbance, such as dikes, berms, catch basins, ponds, ditches,
trenches, culverts, channels, perimeter drains, swales; or
☐ I am installing stormwater controls that require subsurface earth
disturbance, and have determined these controls present no potential
impacts to historic properties.
☐ My project does not trigger any Safe Drinking Water Act Underground
Injection Control (UIC) requirements referenced in CGP Part 7.2.14.3. This will
be true if ALL of the following statements must be true:
☐ I am not installing infiltration trenches (true if stormwater will not
be directed to any bored, drilled, driven shaft or dug hole that is
deeper than its widest surface dimension, or has a subsurface fluid
distribution system); and
☐ I am not installing any commercially manufactured pre-cast or pre-
built proprietary subsurface detention vaults, chambers, or other
devices designed to capture and infiltrate stormwater flow; and
☐ I am not installing drywells, seepage pits, or improved sinkholes
(true if stormwater will not be directed to any bored, drilled, driven
shaft or dug hole that is deeper that its widest surface dimension, or
has a subsurface fluid distribution system).
4. At my site and during the course of the project, ALL of the following
statements are true:
☐ My project does not have any associated off-site material storage,
waste disposal, or borrow areas covered under the NPDES GP2; and
☐ No treatment chemicals of any kind, such as flocculants or polymers, will be
used to treat pollutants in stormwater; and
☐ I will not wash equipment or vehicles on-site; and
☐ The project will not require dewatering.
True False
5. I will comply with all applicable requirements imposed by my state or
tribal government . True False
SWPPP Contents
Part 1: Site and Activity Description ............................................................................................................... 1
1. A. Nature of construction activities at this site 1
1. B. Estimated dates that construction will take place 1
1. C. Contacts for Stormwater Compliance 1
Part 2: Allowable Non-Stormwater Discharges ........................................................................................... 2
Part 3: Erosion and Sediment Controls .......................................................................................................... 3
3. A. Preserve Native Topsoil (required based on site characteristics)3
3. B. Perimeter Controls (required for all sites – choose at least one)3
3. C. Sediment Track-Out (required for all sites)4
3. D. Minimize Dust (required for all sites)4
3. E. Minimize Soil Compaction (required based on site characteristics)4
3. F. Storm Drain Inlet Protection (required based on site characteristics)4
3. G. Other Erosion and Sediment Controls (required based on site characteristics)5
Part 4: Site Stabilization ..................................................................................................................................... 6
4. A Type of soil stabilization (check all that apply)6
4. B. Deadlines to initiate and complete stabilization 6
Part 5: Pollution Prevention Practices ............................................................................................................ 8
5. A. Potential Pollutants at This Project Site 8
5. B. Prohibited Discharges 8
5. C. Pollution Prevention Practices 9
Part 6: Procedures for Maintenance, Inspections, and Corrective Actions ........................................ 10
6. A. Inspections 10
6. B. Maintenance 11
Part 7: Site Maps and Drawings .................................................................................................................... 13
Additional Requirements Imposed by a State or Tribal Authorities ....................................................... 16
SWPPP Certification ........................................................................................................................................ 16
BMP APPENDIX CONTENTS ............................................................................................................................. 18
Small Residential Lot SWPPP Template – Page 1
Part 1: Site and Activity Description
1. A. Nature of construction activities at this site
1.This project will result in the construction of Insert # of single family or duplex dwellings to be
built (must be 5 or fewer) dwellings in the same common plan of development or sale.
Lot Address Total Lot Size (Sq/ft.) Maximum Area of Construction Disturbance (Acres)
1.
2.
3.
4.
5.
Total maximum disturbed area (must be fewer than one
acre per lot; fewer than five acres total):
1.B. Estimated dates that construction will take place
1.Construction activities on this project will begin on or about: (Note: once
the actual date is known, correct the estimated date)
2.All construction activities on this project will be completed on or about:
(Note: once the actual date is known, correct the estimated date)
1. C. Contacts for Stormwater Compliance
Identify person(s) responsible for compliance with this permit.
Name Responsibilities I Have Read the IDNR General Permit No.2 And
Understand the Applicable Requirements
1. Yes Date:
2. Yes Date:
Instructions: Complete Sections A, B, and C.
― Provide summary details of your project, including the number of homes to be built, the size of
the lot on which construction will occur, and the total area of disturbance.
― Provide your best estimate of the dates that construction will start and finish.
― Specify who will be the lead individual(s) at the project who will make sure that you are in
compliance with the permit, and have them verify that they have read and understand the
permit.
(Insert Name of Responsible Person)(Insert Responsibility
Small Residential Lot SWPPP Template – Page 2
Part 2: Allowable Non-Stormwater Discharges
List of Allowable Non-Stormwater Discharges Present at the Site
Type of Allowable Non-Stormwater Discharge Likely to be Present at
Your Site?
Discharge from emergency fire-fighting activities YES NO
Fire hydrant flushings YES NO
Landscape irrigation YES NO
Water used to control dust YES NO
Potable water including uncontaminated water line flushings YES NO
Routine external building wash down that does not use detergents YES NO
Pavement wash waters provided spills or leaks of toxic or hazardous materials
have not occurred (unless all spill material has been removed) and where
detergents are not used.
YES NO
Uncontaminated air conditioning or compressor condensate YES NO
Uncontaminated, non-turbid discharges of ground water or spring water YES NO
Foundation or footing drains where flows are not contaminated with process
materials such as solvents or contaminated ground water YES NO
Instructions:
Identify whether any of the following allowable discharges (referred to as “non-stormwater discharges”)
may occur at your site. Note: If there will be additional types of non-stormwater discharges at your site,
those discharges must be covered under a separate NPDES permit.
[NPDES GP2 Part III.A.2]
Note: You are reminded of the requirement to identify the likely
locations of any allowable non-stormwater discharges on site map(s)
within PART 7: SITE MAPS. Use the list of checked items above to
populate Map #2: Best Management Practices.
Reminder: Construction sites that include equipment or vehicle
washing operations are ineligible to use the Small Residential Lot
SWPPP Template.
Small Residential Lot SWPPP Template – Page 3
Part 3: Erosion and Sediment Controls
During the course of my project I will use the following controls to minimize erosion and sediment discharges
in stormwater. These controls will be designed, installed, maintained, and removed in accordance with the
specifications in Appendix A: Erosion and Sediment Control Specifications. Location on site for each of
these practices is depicted in the attached site maps in Part 7: Site Maps.
3. A. Preserve Native Topsoil (required based on site characteristics)
Permit requirement: You must preserve native topsoil on your site, unless infeasible. NPDES GP2 Part
IV.D.2.A.(2)(c) To comply with this requirement, I will do the following (select one):
I will preserve some portion of the topsoil I remove so that it can be re-applied for vegetative
stabilization. I will use the following soil preservation control to manage and preserve native
topsoil on site for later use in stabilizing the site:
Practice ES-1 - Soil Stockpiling and Topsoil Preservation
It is infeasible to preserve topsoil at my site. (Provide explanation)
3. B. Perimeter Controls (required for all sites – choose at least one)
Permit requirement: You must install controls along the perimeter of your site that will receive
stormwater from your construction activities. NPDES GP2 Part III.C.
To comply with NPDES GP2 Part III.C., I will use the following type of perimeter control(s) at my site (select
at least one):
Practice ES-2 - Silt Fence Sediment Barrier
Practice ES-3 - Filter Sock/Log (e.g., fiber roll, compost sock, wood mulch sock, bio roll)
Other: (If you select "Other", describe type of perimeter control that you will use.)
Instructions:
Choose which erosion and sediment controls will be used at your site. You must comply with the
specifications for design, installation, maintenance, and removal of each BMP in Appendix A: Erosion and
Sediment Control Specifications. If you wish to outline alternative erosion and sediment control practices,
please do so within this section.
[NPDES GP2 III.C.]
(Required for all sites) – Indicates control is required by the NPDES GP2.
(Required based on site characteristics) – Indicates control is dependent on site
characteristics. Read permit requirements carefully to determine whether this control
applies to your site.
Small Residential Lot SWPPP Template – Page 4
3. C. Sediment Track-Out (required for all sites)
Permit requirement: You must minimize the track-out of sediment onto off-site streets, other paved areas,
and sidewalks from vehicles existing your construction site.
To comply with NPDES GP2 Part III.C. I will use the following type of sediment track-out control at my site:
Practice ES-4 - Stabilized Exit Pad
3. D. Minimize Dust (required for all sites)
Permit requirement: You must minimize the generation of dust to avoid pollutant discharges to the extent
feasible through application of water or other dust suppression techniques.
I will use the following type of dust control at my site:
Practice ES-5 - Dust Control
3.E. Minimize Soil Compaction (required based on site characteristics)
Permit requirement: In areas of your site where final vegetative stabilization will occur or where
infiltration practices will be installed, you must minimize soil compaction.
To comply with NPDES GP2 Part IV.D.2.A.(2).(c), I will use the following practices to minimize soil
compaction(select at least one):
Practice ES-6 - Protect Areas Reserved for Vegetation and Infiltration
Other: (If you select "Other", describe type of control that you will use.)
3. F. Storm Drain Inlet Protection (required based on site characteristics)
Permit requirement: If you discharge to a storm drain inlet that you have access to, you must install
protection measures that remove sediment from your stormwater discharge. NPDES GP2 Part IV.D.2.A.(2)
This control is required on my site:
Yes, because stormwater that leaves my property flows into a storm sewer inlet (without first
flowing to a storm pond or other larger-scale control) that I have access to.
No, because stormwater will not flow into a storm sewer inlet that I have access to, or because
it flows first into a storm pond or other large-scale control
If “Yes” is checked above, to meet NPDES GP2 Part III.C.1. I will use the following type of sewer inlet
protection control (select at least one if required).
Practice ES-7 – Inlet Controls (choose one):
Block and gravel barrier Sediment control logs
Sand or rock bags Filter bag inlet protection
Other: Specify.
Small Residential Lot SWPPP Template – Page 5
3. G. Other Erosion and Sediment Controls (required based on site characteristics)
Permit requirement:
If you plan to use other erosion and sediment controls on your site that do not fall under any of the areas
already covered above, describe them below:
Select the type of stormwater control that will be on your site:
Wood Mulch Berms (Base 3ft, Hieght 2ft, top 1ft) Other:
Inlet Protection (type)
Date of installation: (Must be prior to start date of construction)
Location on site: The attached site map shows where this control will be placed.
Design, installation, maintenance, and removal specifications: Describe installation, maintenance and
removal proceedures.
(Select date - must be prior to startSediment controls will be installed on site by
date of construction)
Repeat “other controls” text as necessary.
Small Residential Lot SWPPP Template – Page 6
Part 4: Site Stabilization
During the course of my project I will use the following controls for temporary and permanent stabilization
on my site. These controls will be designed, installed, maintained, and removed in accordance with the
specifications in Appendix B: Stabilization Control Specifications. Location on site for each of these
practices is depicted in the attached site maps in Part 7: Site Maps.
Permit Requirement: Where work on any area of bare soil on your site will not occur for 14 or more days,
stabilization measures must be initiated immediately. Stabilization is required when work will permanently
cease in this area, or if the cessation of work is only temporary, and construction work in this area will
continue in the future. NPDES GP2 Part III.C.3.
4.A. Type of soil stabilization (check all that apply)
Vegetative (select specific type from options below)(SS Practices are located in Appendix B):
Practice SS-1 – Seeding
Practice SS-2 – Sod
Non-vegetative cover (select specific type from options below):
Practice SS-3 – Erosion Control Blankets or Turf Reinforcement Mats
Practice SS-4 – Mulching
Other type of vegetative or non-vegetative stabilization measure not listed above:
4.B. Deadlines to initiate and complete stabilization
Deadline to initiate soil stabilization: Where work will not occur for 14 or more days in any area of
bare soil on my site, I will initiate stabilization on the 1st day that work stops. Any ofthe following
activities qualifies as initiating stabilization:
1.Prepping the soil for vegetative or non-vegetative stabilization
2.Applying mulch or other non-vegetative product to the area of bare soil
3.Seeding or planting the exposed area
4.Starting any of the activities in 1, 2, or 3 on a portion of the area to be stabilized, but not on
the entire area
5.Finalizing arrangements to have stabilization product fully installed
Instructions:
Choose which temporary and permanent stabilization controls will be used at your site. You must
comply with the specifications for design, installation, maintenance, and removal of each BMP in
Appendix B: Stabilization Control Specifications. If you wish to outline alternative site stabilization
practices, please do so within this section.
[NPDES GP2 Part IV.2.]
Small Residential Lot SWPPP Template – Page 7
Deadline to complete soil stabilization: Check the appropriate box below and follow the
deadlines that correspond to that box:
The project is located in an arid, semi-arid, or drought-stricken area, and construction will occur
during the seasonally dry period or during a period in which a drought is predicted to occur, and
you are using vegetative stabilization measures.
I will complete the following by the deadlines below:
Within 14 calendar days of when work has ceased in the affected area, install temporary,
non-vegetative stabilization measures to the extent necessary to prevent erosion, and
As soon as practicable given conditions or circumstances at the site, complete all
activities necessary to initially seed or plant the area to be stabilized.
To achieve final stabilization, the area must be seeded or planted in perennials to provide established
vegetation that covers 70 percent or more of the density to prelude erosion.
All other construction projects, other than those described above.
I will complete the following as soon as practicable, but no later than 14 calendar days after
initiating stabilization measures:
For vegetative stabilization, complete all activities necessary to initially seed or plant the
area to be stabilized. To achieve final stabilization, vegetation must provide 70 percent or
more of the preexisting vegetative cover.
For non-vegetative stabilization, complete the application of all non-vegetative measures
to the area to be stabilized.
The site map in Part 7 of this SWPPP shows where stabilization will occur on this site. For installation,
maintenance, and removal specifications for each BMP, see Appendix B: Stabilization Control
Specifications.
Small Residential Lot SWPPP Template – Page 8
Part 5: Pollution Prevention Practices
5. A. Potential Pollutants at this Project Site
Identify the potential pollutant sources on the site (check all that apply)
Sediment Wastewater from concrete washout/cleanout
Wastewater from stucco washout/cleanout
Lime
Fuel and oil
Portable toilet waste
Roofing materials
Paint
Fertilizers
Plaster
Solid waste
Treated lumber
Pesticides, Herbicides
In addition to the above, the following chemicals, compounds, or other pollutant sources will be
located at my site during construction (identify any not included in the list above):
5. B. Prohibited Discharges
The following discharges are prohibited under the permit, and are considered a violation should any
occur. NPDES GP2 Part III.C.6.
1.Wastewater from washout of concrete, and from washout and cleanout of stucco, paint, form
release oils, curing compounds and other construction materials.
2.Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance.
3.Soaps, solvents, or detergents used in vehicle and equipment washing
4.Toxic or hazardous substances from a spill or other release.
In the event that one of these discharges occurs, I will take corrective action consistent with Part 6.c
of this SWPPP. (Refer also to 455B.386 of the Iowa Code )
Instructions:
Identify potential pollutants and choose which pollution prevention practices will be used at your
site. You must comply with the specifications for design, installation, maintenance, and removal in
Appendix C: Pollution Prevention Practice Specifications. If you wish to outline alternative pollution
control practices, please do so within this section.
[NPDES GP2 Part IV.D.5.]
Small Residential Lot SWPPP Template – Page 9
5. C. Pollution Prevention Practices
During the course of my project, I will implement the following practices to minimize pollutant
discharges from my site. These controls will be designed, installed, maintained, and removed in
accordance with the specifications in Appendix C: Pollution Prevention Practice Specifications.
Location on site for each of these practices is depicted in the attached site maps in Part 7: Site Maps.
Where a practice does not apply to my site because the type of pollutant will not be present during
any part of the project, I have indicated that this practice is “N/A” (Not Applicable).
Pollutant Sources Pollution Prevention Practice
(See Appendix C for specifications)
Applicable to My Site?
Building products, materials, and
wastes
Practice PP-1 - Materials Storage and
Handling
☑ Yes (required)
Pesticides, herbicides, insecticides,
and fertilizers
Practice PP-1 - Materials Storage and
Handling
Yes N/A
Diesel fuel, oil, hydraulic fluids, other
petroleum products, and other
chemicals
Practice PP-1 - Materials Storage and
Handling
Yes N/A
Hazardous or toxic waste Practice PP-1 - Materials Storage and
Handling
Yes N/A
Construction and domestic waste Practice PP-2 - Construction and Solid
Waste Management
☑ Yes (required)
Sanitary waste Practice PP-3 - Sanitary Waste
Management
Yes N/A
Washwater from paint, concrete, or
other applicators and containers
Practice PP-4 - Concrete/Stucco
Washout Controls
Yes N/A
Describe any other pollution prevention practices to be implemented at the site:
For any pollution prevention requirements that you indicated are not applicable (“N/A”) in the table
above, describe why they are not applicable:
Insert project specific spill plan and response procedures if applicable.
Note: By checking the “Applicable to My Site” box below, you are committing to following the
corresponding practice specifications outlined in Appendix C: Pollution Prevention Practice
Specifications. If you wish to outline alternative pollution control practices, please do so within this
section.
Small Residential Lot SWPPP Template – Page 10
Part 6: Procedures for Maintenance, Inspections, and
Corrective Actions
6. A. Inspections
Permit requirement: You must conduct a site inspection either (1) once every 7 calendar days. "Unless
erosion is evdient or other conditions warrent them, regular inspections are not required on the area that
have been stabilized with a perennial vegatative coverage of sufficiant density to prelude erosion."
[NPDES GP2 Part VI.D.4.]
Inspector name and qualifications: Insert inspector names and qualifications. See NPDES GP2 Part VIII. for
definition of “qualified person” for the purpose of this permit.
Inspection frequency:
-At least once every 7 calendar days
-Once I have stabilized, with a perennial vegatative coverage of sufficiant density to
prelude erosion, the disturbed areas on my site pursuant to Part 4: Site Stabilization, above, I
can discontinue weekly inspections.
Instructions:
Identify appropriate procedures for maintenance, inspections, and corrective actions at your site,
consistent with the requirements in the NPDES GP2.
[NPDES GP2 Part VI.M.]
Name of SWPPP Inspector:
Company:
Contact Number:
Quilfications:
Small Residential Lot SWPPP Template – Page 11
Areas to be inspected: During each inspection, I will inspect the following areas of my site, as required by
the permit:
Cleared, graded, or excavated areas of the site;
Stormwater controls (e.g., perimeter controls, exit points) and pollution prevention practices (e.g.,
pollution prevention practices for vehicle fueling/maintenance and washing, construction product
storage, handling, disposal) at the site;
Equipment storage and maintenance areas;
Areas where stormwater flows within the site;
Stormwater discharge points; and
Areas where stabilization has been implemented.
Inspection report: I will complete an inspection report within 24 hours of completing any site inspection
consistent with the report template found at http://www2.epa.gov/national-pollutant-discharge-
elimination-system-npdes/stormwater-discharges-construction-activities#resources.
Note: Be sure to attach completed inspection reports to the SWPPP.
6. B. Maintenance
Permit Requirement: You must ensure that all erosion and sediment controls and pollution prevention
practices remain in effective operating condition during permit coverage and are protected from
activities that would reduce their effectiveness. NPDES GP2 Part IV.D.4.B.4
If I find a problem with a stormwater or pollution control measure, I will:
Initiate work to fix the problem immediately after discovering the problem, and complete such
work by the close of the next work day, if the problem does not require significant repair or
replacement, or if the problem can be corrected through routine maintenance; and
Install a new or modified control and make it operational, or complete the repair, by no later than
7 calendar days from the time of discovery where feasible whenever the installation of a new
erosion or sediment or pollution prevention control is needed. If infeasible to complete the
installation/repair within 7 days, I will document why it is infeasible to complete the installation or
repair and the modified schedule.
6. C. Corrective Action.
Permit Requirement: You must complete corrective actions in accordance with the permit’s deadlines.
Required Corrective Action(s): I will immediately take all reasonable steps to minimize or prevent the
discharge of pollutants until a permanent solution is installed and made operational, including cleaning up
any contaminated surfaces so that the material will not discharge in subsequent storm events . I will
conduct corrective action(s) for each of the following triggering conditions should they occur at my site.
A required stormwater control was never installed, was installed incorrectly, or not in accordance
with the requirements of the permit
I became aware that discharges are not meeting applicable water quality standards
A prohibited discharge is occurring or has occurred
An Enforcement Authority Officier requires corrective actions as a result of a permit violation
found during an inspection
Corrective action report: For each corrective action taken, I will decomunt it in the "Site Activity Log"
of the SWPPP
Small Residential Lot SWPPP Template – Page 12
6. D. Training.
Permit Requirement: Prior to the commencement of earth-disturbing activities or pollutant generating
activities, you must ensure that personnel described in Part 6.A. of the SWPPP understands the requirements
of the NPDES GP2 and their specific responsibilities with respect to these requirements.
Documentation for Completed Training:
Course Name (printed)Certification Title Date Aquired:
Course Name (printed)Certification Title Date Aquired:
Small Residential Lot SWPPP Template – Page 13
Part 7: Site Maps and Drawings
Instructions:
For each map template, include a depiction of each bulleted item, as applicable.
Explanation: The NPDES GP2 requires operators to provide a map or series of maps identifying
property boundaries, locations of earth-disturbing activities, locations of final structures and
surfaces that will be left impervious upon completion of project, locations of all surface waters
within the immediate vicinity of the site, stormwater discharge locations, locations of potential
pollutant-generating activities, locations of erosion and sediment controls, stormwater control
measures, and other BMPs.
NPDES GP2 Part IV.D.1.D.
Before you continue, be sure to review the series of EXAMPLE SITE
MAPS provided in APPENDIX D of this guide.
Small Residential Lot SWPPP Template – Page 14
MAP #1 – Pre-Construction
Use this map to depict:
Boundaries of your site
Storm drain inlets
Topography of the site, existing vegetative cover, and drainage patterns onto, over, and from
activities will occur (e.g., limits of
the site property
Any slope greater than 25% (4:1 slope)
Locations where construction activities and earth-disturbing
disturbance, building footprint)
Flowpath of stormwater across site during pre-construction
(If you rather submit a separate site plan, please make sure that all required fields/
items listed under Map #1 & 2 are properly depict.
Small Residential Lot SWPPP Template – Page 15
MAP #2 – Best Management Practices
Use this map to depict:
Location of designated areas (with clear signage in English and, as appropriate, Spanish) for waste
disposal, chemical/hazardous/construction materials storage, and stucco/concrete washout.
Locations of structures and/or other impervious surfaces to be constructed
Locations of all potential pollutant-generating activities
Locations and names of all erosion and sediment controls
Locations of all temporary and/or permanent stabilization controls
Locations of all pollution prevention controls
Drainage patterns onto, over, and from the site property after major grading activities
Allowable non-stormwater discharges (refer to Part 2 of this template)
Small Residential Lot SWPPP Template – Page 16
Additional Requirements Imposed by a State or Tribal Authority
I will comply with any additional requirements imposed by the state or tribal authority for my small
residential lot project.
Attachments
I have included a copy of my Notice of Intent (NOI) and authorization email as well as a copy of
the IDNR NPDES General Permit No.2 as attachments to this SWPPP.
Owner SWPPP Certification
I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gathered
and evaluated the information submitted. Based on my inquiry of the person or persons who manage the
system, or those persons directly responsible for gathering the information, the information submitted is, to
the best of my knowledge and belief, true, accurate, and complete . I am aware that there are significant
penalties for submitting false information, including the possibility of fine and imprisonment for knowing
violations.
Name (printed) Title Signature Date
I will have all contractors and subcontractors whose duties on site include land disturbance activity, SWPPP
inspections, erosion and sediment control practices (implementation, mainteance, and removal practices),
and good housekeeping practices to sign a copy of the certifiaction statement, referenece in Part IV.D.7.B.
of the NPDES GP2, prior to conducting any activity on site. (Copies of the signed certification statements
must be included in the SWPPP.)
Contractor / Subcontractor SWPPP Certification Statement
(A copy of the Certifiaction Statment Form is on the following page)
Contractor Certifications/Agreement
CONTRACTOR / SUBCONTRACTOR CERTIFICATION
STORMWATER POLLUTION PREVENTION PLAN
Project Name or Location:
NPDES General Permit #2 Authorization Number :
Name of Onsite General Contractor:
As a contractor/subcontractor, you are required to comply with the Stormwater Pollution Prevention Plan
(SWPPP) for any work that you perform on-site. Any person or group who violates any condition of the
SWPPP may be subject to substantial penalties or loss of contract. You are encouraged to advise each of
your employees working on this project of the requirements of the SWPPP. A copy of the SWPPP is
available upon request.
Each contractor/subcontractor engaged in activities at the construction site that could impact stormwater
must be identified and sign the following certification statement:
I certify under the penalty of law that I have read and understand the terms and conditions of the
SWPPP for the above designated project and agree to follow the BMPs and practices described in
the SWPPP.
This certification is hereby signed in reference to the above named project:
Company:
Address:
Telephone Number:
Type of construction service to be provided:
Signature:
Title:
Date:
Small Residential Lot SWPPP Template – Page 17
SWPPP APPENDICES
Appendix A – Erosion and Sediment Control Specifications
Appendix B – Stabilization Control Specifications
Appendix C – Pollution Prevention Practice Specifications
Appendix D – Example Site Maps
Appendix E – Copy of the Construction General Permit
Appendix F – Copy of NOI and EPA Authorization Email
Appendix G – Completed Inspection Reports
Appendix H – Completed Corrective Action Reports
Small Residential Lot SWPPP Template – Page 18
BMP APPENDIX CONTENTS
Appendices A, B, and C provide specifications for typical small residential lot construction BMPs. Indicate
which controls you selected for your site, and the date you will install and remove each selected control.
Note, some controls are mandatory.
Practice
Number APPENDIX A: Erosion and Sediment Control Specifications
Included in this
SWPPP?
Date of
Installation
Date of
Removal
ES-1 Soil Stockpiling and Topsoil Preservation YES NO
Perimeter Controls ☒ YES (REQUIRED)
ES-2 Silt Fence Sediment Barrier YES NO
ES-3 Sediment Filter Log YES NO
ES-4 Stabilized Exit Pad ☒ YES (REQUIRED)
ES-5 Dust Control YES NO
ES-6 Protect Areas Reserved for Vegetation and Infiltration YES NO
ES-7 Inlet Controls YES NO
Practice
Number APPENDIX B: Stabilization Control Specifications
Included in my
SWPPP?
Date of
Installation
Date of
Removal
Vegetative Controls
SS-1 Seeding YES NO
SS-2 Sod YES NO
Non-vegetative Controls
SS-3 Erosion Control Blankets or Turf Reinforcement Mats YES NO
SS-4 Mulching YES NO
Practice
Number APPENDIX C: Pollution Prevention Practice Specifications
Included in my
SWPPP?
Date of
Installation
Date of
Removal
PP-1 Materials Storage and Handling ☒YES (REQUIRED)
PP-2 Construction and Solid Waste Management ☒YES (REQUIRED)
PP-3 Sanitary Waste Management YES NO
PP-4 Concrete/Stucco Washout Controls YES NO
Small Residential Lot SWPPP Template – Page 19
Note: The specification sheets from Appendix A, B,
and C included in your SWPPP should correspond to
the controls you selected in Parts 1-7 of the EPA’s
Small Residential Lot SWPPP Template. Remove any
controls not applicable to your site.
Appendix A – Erosion and Sediment Control Specifications
Small Residential Lot SWPPP Template – Page 20
Soil Stockpiling and Topsoil Preservation (ES-1)
Use: Protect soil stockpiles from contact with rainwater and/or runoff, and
preserve native topsoil.
Location: Locate stockpiles away from storm inlets, conveyances, or other
channelized flow. Locate topsoil stockpiles where they will not erode or block
drainage structures, site entrances, or access to waste disposal areas.
Design criteria:
General soil and sediment stockpile criteria:
Site operator(s) must protect stockpile from contact with stormwater
(including water run-on) and/or prevent muddy runoff being discharged
from the stockpile using a temporary perimeter sediment barrier. See
(ES-2, Silt Fence Sediment Barrier and ES-3, Sediment Filter Log). If
stockpile will be left uncovered for more than 14 days, apply temporary
mulch or seed (see SS-1, Vegetative Stabilization – Seeding). For smaller
stockpiles, plastic sheeting or tarps may be used. Unless infeasible,
securely protect the stockpile from wind erosion (see ES-5, Dust Control).
Removing topsoil:
Prior to stripping away topsoil (typically the first 4 to 6 inches of soil),
ensure that all downslope erosion and sediment controls and upslope
run-on diversions are in place. Avoid stripping topsoil from areas that will
not be disturbed by excavation, grading, filling, or road building.
Topsoil storage:
Where disturbance to native topsoil will occur at your site, unless
infeasible, you should stockpile and reuse it in areas that will be stabilized
with vegetation. To maximize the native topsoil’s continued function,
when stockpiling native topsoil, you should mound the soil and cover to
prevent soil erosion and weed growth. Uncovered stockpiles should be
protected with a sediment barrier (e.g., silt fence, sediment filter log)
around the downslope perimeter of the stockpile. As a guideline, soil
should be mounded to a height of no higher than 4 feet for less than 1
year, and preferably for less than 6 months.
Reapplying Topsoil:
Prior to placing topsoil in desired location, verify that subgrade has been
graded and is structural stable. Perform pH tests whenever possible prior
to soil placement in order to determine whether soil amendments or
treatments are necessary to support vegetation growth.
Loosen subgrade to a depth of 3 inches by disking or scarifying to ensure
that topsoil bonds with underlying earth. Apply a minimum of 4 inches of
topsoil. Do not spread topsoil when subgrade is wet or frozen.
Maintenance/Removal:
See perimeter sediment barrier maintenance specifications (ES-2, Silt
Fence Sediment Barrier and ES-3, Sediment Filter Log).
Do not hose down or sweep leftover soil or sediment accumulated on
pavement or other impervious surfaces into any storm drains or surface
waters.
Application of silt fencing to control muddy runoff
from soil stockpile. Leaving a site with quality
soil encourages healthy root growth and reduces
time and resources needed to care for turf and
landscape plantings.
Silt fence around soil stockpile.
Photo credit: Barry Tonning, Tetra Tech
Appendix A – Erosion and Sediment Control Specifications
Small Residential Lot SWPPP Template – Page 21
Silt Fence Sediment Barrier (ES-2)
Use: Intercept runoff from the site, and settle out or filter sediment.
Location: Downhill from bare soil or other disturbed areas.
Design criteria:
Dig trench 4-8 inches deep just inside the downhill lot lines.
Make sure ends of trench are turned uphill, to prevent by-pass.
Install silt fence fabric so that posts/stakes are on the downhill side.
Install silt fence posts/stakes in trench, against downhill trench wall.
About 6-8 inches of fabric should hang below grade in the trench.
Backfill trench (with fabric in it) on the uphill side – tamp down the fill.
Maintenance:
Check for bypasses and undercutting after rainstorms.
Use additional stakes to firm up bypass or undercut areas.
Remove sediment before it reaches halfway up the exposed fabric.
Inspect the silt fence in accordance with Part 6 of this SWPPP, and repair
undercut/bypass areas.
If a complete replacement or a new control is required, complete and
make operational within 7 calendar days where feasible.
Tips:
Silt fence should intercept and pond runoff water.
Install around entire downhill perimeter of disturbed area.
There is no need to install uphill from disturbed or bare soil areas.
Removal:
Silt fences are temporary – remove when uphill area is stabilized.
Stabilization means all bare soil is vegetated, paved, mulched, etc.
After removal, dress up or seed/mulch silt fence area.
Remove and properly dispose of or recycle silt fence fabric from the site,
or store for later reuse.
Illustration of a proper silt fence installation.
Site with properly installed silt fence. Note that
fence posts are installed on the downhill side of
the fabric. Photo credit: Barry Tonning, Tetra
Tech
Ensure silt fence is dug into ground to prevent
runoff from escaping underneath. Photo credit:
John Kosco, Tetra Tech
Appendix A – Erosion and Sediment Control Specifications
Small Residential Lot SWPPP Template – Page 22
Sediment Filter Log (ES-3)
Use: Intercept and contain muddy runoff to trap sediment. Includes fiber
rolls, sediment logs, bio rolls, etc.
Location: Downhill from bare soil or other disturbed areas.
Design criteria:
Grade area where the fiber roll will be located.
Dig a 3-inch deep rounded trench around the downhill lot perimeter.
Install filter log in the trench, pressing firmly into place.
Place a 2” layer of compacted fill material on the upslope side of the log
to prevent undercutting.
Pull filter log gently when driving stakes – do not stretch!
Drive stakes through the filter log every 3-4 feet; leave 3 inches above
roll.
Use 24-inch stakes in soft soil, and 18-inch stakes in harder ground.
Ensure maximum area draining to the filter log is less than one acre.
Use larger diameter filter log for steeper sites or high-runoff areas.
Maintenance:
Check for bypasses and undercutting after rainstorms.
Use additional stakes to firm up bypass or undercut areas.
Remove sediment before it reaches halfway up the exposed filter log.
Inspect the sediment filter log in accordance with Part 6 of this SWPPP,
and repair undercut/bypass areas.
If a complete replacement or a new control is required, complete and
make operational within 7 calendar days where feasible.
Tips:
Filter logs are intended for relatively flat or slightly rolling terrain.
Use silt fencing in areas where slopes are long or steep.
Do not drive over filter log sections.
Removal:
Remove filter logs after all bare areas have been sodded/seeded.
Grade and sod or seed/mulch area where filter log was installed.
Illustration of filter log installation.
Drive stakes every 3-4 feet along the filter log.
Photo credit: Barry Tonning, Tetra Tech.
Make sure filter log stakes are spaced to prevent
undercutting or bypasses. Leave stake tops
extended along sections to prevent drive-overs.
Photo credit: Barry Tonning, Tetra Tech
Appendix A – Erosion and Sediment Control Specifications
Small Residential Lot SWPPP Template – Page 23
Stabilized Exit Pad (ES-4)
Use: Temporary gravel construction entrance to prevent muddy tires/wheels
from tracking sediment onto paved roads.
Location: Any point where traffic enters or leaves a construction site onto a
paved public right-of-way, street, or parking area.
Design criteria:
Install non-woven geotextile on graded soil to support the exit pad.
Rock should be large enough to prevent muddy track-out at the exit.
Spread rock evenly over geotextile.
Thickness of the pad shall not be less than 6 inches.
Grade the exit pad (usually where the driveway will be located) so that
muddy runoff does not flow onto streets or into storm drains.
Divert runoff from exit pad to grassy areas for infiltration, if possible.
Maintenance:
Apply new rock or remove mud and dirt clods to keep pad clean.
If mud or dirt clods have been tracked-out from your site onto the
surface of streets, other paved areas, or sidewalks, remove by the end of
the same work day.
Remove track-out by sweeping, shoveling, or vacuuming the impervious
surface. Do not hose or sweep tracked-out sediment into any stormwater
conveyance or catch basin inlet.
If a complete replacement or a new control is required, complete and
make operational within 7 calendar days where feasible.
Tips:
Restrict vehicles and equipment from muddy areas of the site if possible.
Limit traffic onto and off site by parking vehicles on street if possible.
Removal:
Pave over, or remove and stabilize the exit pad, when construction is
completed.
Illustration of stabilized exit pad.
Good application of rock exit pad. Note short
section of material against curb that is keeping
rock from leaving site. Photo credit: John Kosco,
Tetra Tech.
Rumble pad construction exit. Photo credit: John
Kosco, Tetra Tech.
Appendix A – Erosion and Sediment Control Specifications
Small Residential Lot SWPPP Template – Page 24
Dust Control (ES-5)
Use: Prevent fine-grained sediments from being blown away by wind to off-
site areas or other on-site areas where they could subsequently be washed
into surface waters.
Location: Areas where exposed soil is vulnerable to wind erosion.
Design criteria:
Select control measures from the following list:
Sprinkling/Irrigation. Sprinkle the ground surface with water until moist.
Vegetative Cover. Use seed, sod, and/or other vegetative cover to
stabilize areas that generate airborne dust. Follow requirements in SS-1,
Vegetative Stabilization - Seeding or SS-2, Vegetative Stabilization - Sod,
as applicable. Note: this is an effective method in areas not expected to
handle vehicle traffic.
Mulch. Follow specifications provided in SS-4, Non-Vegetative
Stabilization - Mulching. Note: this is a quick and effective means of dust
control for recently disturbed areas.
Wind Breaks. Wind breaks are barriers (either natural or constructed)
that reduce wind velocity through a site and, therefore, reduce the
possibility of suspended particles. Wind breaks can be trees or shrubs left
in place during site clearing or constructed barriers such as a wind fence,
snow fence, tarp curtain, hay bale, crate wall, or sediment wall.
Maintenance:
Inspect any installed controls regularly for deterioration to ensure that
they are still achieving their intended purpose.
Dust control measures must be modified or upgraded if site inspection
shows evidence of wind erosion.
Tips:
Phasing construction activities to minimize the total area disturbed at any
one time can greatly reduce problematic dust on site.
Straw mulch can be used to both prevent
erosion and minimize dust from a site. Photo
credit: Barry Tonning, Tetra Tech.
Appendix A – Erosion and Sediment Control Specifications
Small Residential Lot SWPPP Template – Page 25
Protect Areas Reserved for Vegetation and Infiltration (ES-6)
Use: Protect areas where vegetative stabilization or infiltration practices (e.g.,
rain gardens, bioswales, septic system drainfields) will be installed from
excessive compaction.
Design criteria:
Before the start of construction, identify protected and minimal
disturbance areas with adequate signage in relevant languages (English,
Spanish, etc.) and/or fencing.
Train staff to avoid traffic and other impacts to protected areas.
Indicate protected/minimal disturbance areas on site maps/drawings.
Conduct soil restoration (i.e., conditioning) for areas that are not
adequately protected or have been degraded by previous activities.
Maintenance:
Replace fencing or signage as needed.
Tips:
Provide adequate signage in relevant languages (English, Spanish, etc.)
directing vehicle traffic on site.
Clearly mark site entrance and exit, as well as drop-off areas for materials
delivery and waste pickup.
Protect vegetated areas using fencing or similar
barriers. Include signage to notify workers not to
enter the area.
Use fencing and signage to ensure workers
know not to disturb protected areas. Photo
credit: Barry Tonning, Tetra Tech.
Signage for tree protection area. Photo credit:
John Kosco, Tetra Tech.
Appendix A – Erosion and Sediment Control Specifications
Small Residential Lot SWPPP Template – Page 26
Inlet Controls (ES-7)
Use: Prevent soil and debris from entering storm drain inlets.
Design criteria:
To function effectively, inlet protection measures must be installed to ensure
that flows do not bypass inlet protection and enter the storm drain without
treatment. However, designs must also enable the inlet to function without
completely blocking flows in a manner that causes localized flooding. There
are several types of effective inlet protection:
Block and gravel barrier: Place two concrete blocks on their sides
perpendicular to the curb at either end of the inlet opening. These will
serve as spacer blocks. Place concrete blocks on their sides across the
front of the inlet and abutting the spacer blocks. The openings in the
blocks should face outward, not upward. Cut a 2-by-4 inch stud the
length of the curb inlet plus the width of the two spacer blocks. Place the
stud through the outer hole of each spacer block to help keep the front
blocks in place. Place wire mesh over the outside vertical face (open
ends) of the concrete blocks to prevent stone from being washed through
the blocks. Use chicken wire, hardware cloth with 1/2 inch openings, or
filter fabric. Place 3/4 -1 1/3 inch gravel against the wire to the top of the
barrier.
Sand or rock bags: Place these barriers on gently sloping streets where
water can pond. Bag should be of woven-type or mesh geotextile fabric
since burlap bags deteriorate rapidly. Fill the bags with 3/4 inch drain
rock or 1/4 inch pea gravel. Do not fill bags completely, so they will form
a tight seal when packed in a row. Place the bags in a curved row from
the top of curb at least 3 feet into the street. The row should be curved at
the ends, pointing uphill. Several layers of bags should be overlapped and
packed tightly. Leave a one-bag gap in the top row to act as a spillway.
Once the small catchment areas behind the bags, or block and gravel, fill
with sediment, future sediment-laden runoff will enter the storm drain
without being de-silted. Therefore, sediment must be removed from
these structures during or after each storm. Additional storage can be
obtained by constructing a series of bag barriers along the gutter so that
each barrier traps small amounts of sediment.
Sediment control logs: There are a variety of proprietary products
available for “curb sock” or sediment control bag inlet protection. If
proprietary products are used, design details and installation procedures
from the manufacturer must be followed.
Filter bag inlet protection: Wherever filter bags are used they should be
installed according to manufacturer’s specifications. Ensure that the
accompanying sand bag, filter log, or compost sock extends beyond the
inlet opening. Filter bags should be cleaned and/or replaced when the
bag is half full or when flow capacity has been reduced so as to prevent
flooding or bypassing of the inlet. Needed repairs should be initiated
Typical inlet protection that allows sediment to
settle out before stormwater is discharged to the
storm drain.
Typical filter bag inlet protection installation.
Photo credit: Barry Tonning, Tetra Tech
Typical rock bag inlet protection installation.
Photo credit: Barry Tonning, Tetra Tech
Appendix A – Erosion and Sediment Control Specifications
Small Residential Lot SWPPP Template – Page 27
immediately after the inspection, and a supply of replacement filter bags
should be kept on site.
Maintenance:
To prevent clogging, storm drain control structures must be maintained
frequently.
Check all temporary inlet control measures on a weekly basis and after
each storm event.
Clean, or remove and replace, the inlet control as sediment accumulates,
the filter becomes clogged, or performance is compromised. Where there
is evidence of sediment accumulation adjacent to the inlet control, the
control shall be removed by the end of the same work day in which it was
found or by the end of the following work day if removal by the same
work day is not feasible.
Tips:
For best results, stabilize areas draining to the inlet as soon as feasible, to
reduce the amount of sediment flowing toward the inlet.
Inlet protection measures may be removed in flood conditions where a
clogged inlet may result in endangerment to public safety.
Appendix B –Stabilization Control Specifications
Small Residential Lot SWPPP Template – Page 28
Vegetative Stabilization – Seeding (SS-1)
Use: Establish perennial, vegetative cover in areas of bare soil for stabilization.
Design criteria:
For all sites, except those located in arid or semi-arid areas, provide
established uniform vegetation (evenly distributed without large bare
areas), which provides 70 percent or more of the density of coverage that
was provided by vegetation prior to commencing construction. For final
stabilization, vegetative cover must be perennial.
For sites located in arid, semi-arid, or drought stricken areas, the area of
exposed soil must be seeded so that within 3 years, 70 percent or more
of the density of coverage that was provided by vegetation prior to
commencing earth-disturbing activities is established.
Installation:
Soil should be capable of supporting permanent vegetation.
Where compacted soils occur, they should be broken up sufficiently to
create a favorable rooting depth of 6-8 inches. Organic compost can
serve as a viable soil amendment. If compost is used, make sure to use
well decomposed, stable, weed free organic matter source. Avoid the use
of invasive species in seed stock.
Rake soil surface smooth prior to seeding, sprigging, sodding, or
hydroseeding.
Install any erosion control practices, such as diversions or berms, to
protect the seeded area.
Spread lime and fertilizer as needed and appropriate for the soil type. To
minimize discharges of nutrients in stormwater, apply fertilizers at a rate
and in amounts consistent with manufacturer’s specifications and at the
appropriate time of year for your location.
Immediately after seeding the area, to the extent necessary to prevent
erosion of the seeded area, install non-vegetative stabilization measures
to protect the area during growth of the vegetation. Follow the
appropriate installation requirements and other specifications for such
measures at SS-3, Non-Vegetative Stabilization - Erosion Control Blankets
or Turf Reinforcement mats and SS-4, Non-Vegetative Stabilization -
Mulching. For arid, semi-arid, and drought-stricken areas, the non-
vegetative cover must be designed to last 3 years without active
maintenance.
Water as necessary to ensure proper seed germination. Avoid excessive
watering, which can result in washing seeds away or in seed clumping.
Maintenance:
Inspect all seeded areas for failures and make necessary repairs,
replacements, reseeding, and remulching within the planting season. If
vegetation is inadequate to meet the 70 percent cover criteria, reseed,
fertilize, and remulch. Water as necessary.
Appendix B –Stabilization Control Specifications
Small Residential Lot SWPPP Template – Page 29
Vegetative Stabilization – Sod (SS-2)
Use: Provide immediate perennial, vegetative cover on areas of bare soil for
stabilization.
Design criteria:
For all sites, except those located in arid or semi-arid areas, provide an
established uniform vegetation (evenly distributed without large bare
areas), which provides 70 percent or more of the density of coverage that
was provided by vegetation prior to commencing construction.
For final stabilization, vegetative cover must be perennial.
Installation:
Ensure soil is capable of supporting permanent vegetation.
Where compacted soils occur, they should be broken up sufficiently to
create a favorable rooting depth of 6-8 inches. See ES-6, Protect Areas
Reserved for Vegetation and Infiltration for soil conditioning
specifications. Organic compost can serve as a viable soil amendment. If
compost is used, it shall be of a well decomposed, stable, weed free
organic matter source.
Use sod appropriate for the climate, topography, and soil type. Do not
apply sod during very hot or wet weather.
Lay strips of sod beginning at the lowest area to be sodded and
perpendicular to the direction of water flow. Wedge strips securely into
place. Square the ends of each strip to provide for a close, tight fit.
Roll or compact immediately after installation to ensure firm contact with
the underlying topsoil. Install staples where sod might move because of
water flow.
When sodding is carried out in alternating strips or other patterns, seed
the areas between the sod immediately after sodding.
Water as necessary. Sod must be established as cover prior to
terminating permit coverage.
Maintenance:
Inspect sod frequently after it is first installed, especially after large
storms, for failures and make necessary repairs until it is established as
cover. If it is impossible to establish a healthy groundcover due to
frequent saturation, instability, or some other cause, remove the sod,
seed the area with an appropriate seed mix, and protect area with a net
or blanket.
Remove and replace dead sections of sod.
Photo of sod being installed at a residential site.
Photo credit: Barry Tonning, Tetra Tech
Sod installation failure. Sod needed staples.
Photo credit: Barry Tonning, Tetra Tech
Appendix B –Stabilization Control Specifications
Small Residential Lot SWPPP Template – Page 30
Non-Vegetative Stabilization – Erosion Control Blankets or Turf
Reinforcement Mats (SS-3)
Use:
Establish temporary stabilization for areas of bare soil. Typically used in
combination with seeded or planted vegetation to stabilize or provide
reinforcement for disturbed areas where plants are slow to develop and to
provide temporary cover where work will continue at a later date.
Design criteria:
Note: Erosion control blankets and turf reinforcement mats must not be used
for permanent stabilization, unless being combined with seeded or planted
vegetation.
If being used to stabilize disturbed areas during the establishment of
seeded or planted vegetation, apply cover to all areas of exposed soil and
seeding where vegetation will grow.
If being used as a temporary stabilization measure prior to continuing
construction, evenly distribute the geotextile, mat, or blanket so that it
covers all areas of exposed soil.
Installation:
Select materials for the mat or blanket that are appropriate for site
conditions (e.g., use degradable straw blanket with cotton thread if area
will be mowed short; use permanent turf mats on steeper slopes where
vegetation will be taller).
Grade and shape the area of installation.
Remove all rocks, clods, vegetation, or other obstructions so that the
installed cover will have complete, direct contact with the soil. Note: If
good ground contact is not achieved, runoff can concentrate under the
product, resulting in significant erosion.
Install in accordance with manufacturer’s specifications.
If the mat or blanket is being used to protect an area being seeded or
planted, seed or plant and apply any lime and fertilizer to the area before
installation of the mat or blanket, as appropriate.
Starting at the highest point, roll blanket sections downwards in the
direction of water flow. Anchor the mat or blanket after it is set in place.
Use anchors that are long enough and have sufficient ground penetration
to resist pullout, such as U-shaped wire staples, metal stake pins, or
triangular wooden stakes. Blanket sections must overlap by at least 6
inches.
Maintenance:
Maintain good contact with the ground. Periodically check to ensure that
erosion does not occur beneath the net or blanket.
Repair and staple any areas of the mat or blanket that are damaged or
not in close contact with the ground. Fix and protect eroded areas if
erosion occurs due to poorly controlled drainage.
Illustration of slope stabilization using erosion
control blankets.
Appendix B –Stabilization Control Specifications
Small Residential Lot SWPPP Template – Page 31
Non-Vegetative Stabilization – Mulching (SS-4)
Use: Provide temporary stabilization of soil, increase infiltration, prevent soil
compaction and decrease surface runoff. Used in conjunction with vegetative
stabilization controls such as seeding, mulching can foster vegetative growth.
Design criteria:
Apply mulch to any part of the site where soil has been disturbed and
protective vegetation has been removed.
On steeper slopes where the mulch is susceptible to movement by wind
or water, mulch material should be hydraulically applied or the straw
mulch should be appropriately anchored.
Mulch should not be applied more than 2 inches deep on seeded sites,
unless it is incorporated into the soil by tracking, disking, or other
‘punching in’ techniques.
Mulch is not to be used in areas of concentrated flow.
Installation:
Evenly distribute mulch on the soil surface, by machine or by hand to the
desired depth.
For applying straw to seeded sites, apply 1.5-2 tons/acre, 1-2 inches
deep, covering 80% of the soil surface. For applying straw to unseeded
sites:, apply 2-3 tons/acre, 2-4 inches deep, covering at least 90% of the
soil surface. For bark mulch, apply at a rate of approximately 6 tons/acre,
at a depth of 2-3 inches. For hydraulic mulch mix, apply at rate of 1.5
tons/ac, mixed with seed and fertilizer, at recommended rates, in order
to achieve uniform, effective coverage.
Anchor mulch as necessary to minimize loss by wind or water. Common
anchoring techniques for hay or straw include crimping, tracking, disking,
or punching into the soil, and spraying with asphaltic or organic tackifier.
Maintenance:
If properly applied and anchored, little additional maintenance is required in
the first 2-3 months. After high winds or significant rainstorms, mulched areas
should be checked for adequate cover and re-mulched if necessary.
Other tips:
Hay mulch has potential for introducing weed seed (unwanted plant material).
Straw tends to contain very few seeds and thus is less likely to contaminate
the site. On small sites (e.g., under one acre), where straw has been
distributed by hand, it can be anchored by hand by punching it into the soil
every 1-2 feet with a dull, round-nosed shovel.
Example of adequate mulch coverage on 1sq.ft
area. Photo credit: Maine DOT.
Slope stabilization using mulch and mulch nets.
Photo credit: Barry Tonning, Tetra Tech
Appendix C – Pollution Prevention Practice Specifications
Small Residential Lot SWPPP Template – Page 32
Materials Storage and Handling (PP-1)
Use: Prevent the discharge of leached pollutants and contaminated runoff
from construction material stockpiles, chemicals, and hazardous waste.
Design criteria:
Designate separate waste collection areas for hazardous waste,
construction waste, and domestic waste. Choose areas that do not
receive a substantial amount of runoff and do not drain directly to a
waterbody.
Provide adequate signage marking each area in relevant languages
(English, Spanish, etc.).
Always unload and store materials away from storm drains and ditches.
Use tarps, plastic sheeting, or other cover to protect stored construction
materials. Use rope, bungee cords, heavy tape, etc. to secure tarps
against wind.
Fuel, hazardous waste, chemicals and fertilizers:
Store fuel, hazardous waste, and chemical products in sealed containers,
which are constructed of suitable materials to prevent leakage and
corrosion. Provide cover from rain, or provide a similarly effective means
to prevent pollutant discharges. Provide secondary containment where
necessary (e.g., spill berms, decks, and spill containment pallets).
Label chemicals in accordance with applicable Resource Conservation and
Recovery Act (RCRA) requirements and all other applicable federal, state,
tribal, or local requirements. Comply with all application and disposal
requirements on any applicable labels.
Apply pesticides, herbicides, and fertilizers only as necessary, and at rates
and in amounts consistent with manufacturer’s specifications, or
document differences where appropriate. Apply fertilizers appropriately
for the location, coinciding as closely as possible with maximum
vegetation uptake and growth.
Clean up spills immediately. For hazardous materials, follow clean up
instructions on the package. Use dry, absorbent clean-up methods where
possible, such as sawdust or kitty litter, to contain the spill. Do not clean
surfaces or spills by hosing the area down. Eliminate the source of the
spill to prevent further discharges.
Maintenance:
Check downhill locations for storm drains and make sure they are
protected.
Direct staff to replace tarps and covers daily, especially before rain.
Tips:
Coordinate with other site operators to ensure availability of clean up
supplies.
Know who to call – and their phone numbers – if major spills occur.
Shelter used to protect materials from rain.
Secondary containment used to capture any spills.
Cover materials using tarps or plastic sheeting to
prevent precipitation from contacting construction
site materials. Direct work crews to replace
material stockpile covers at the end of the day and
before rain. Photo credit: Barry Tonning, Tetra
Tech
Appendix C – Pollution Prevention Practice Specifications
Small Residential Lot SWPPP Template – Page 33
Construction and Solid Waste Management (PP-2)
Use: Reduce potential for stormwater runoff to mobilize construction site
wastes and contaminate surface or ground water.
Design criteria:
Designate separate waste-collection areas on site for construction,
domestic and hazardous waste. Locate waste collection areas away from
streets, gutters, watercourses, and storm drains. Provide adequate
signage in relevant languages (English, Spanish, etc.) to mark waste
collection areas.
If possible, locate dumpsters near construction site entrances to minimize
traffic on disturbed soils.
Provide waste containers of sufficient size and number to contain waste.
Cover materials that might be displaced by rainfall or stormwater runoff
with tarps, plastic sheeting, or other containment structures.
Consider secondary containment around waste collection areas to further
minimize the likelihood of contaminated discharges.
Segregate and provide proper disposal options for hazardous material
wastes (see PP-1, Materials Storage and Handling).
On work days, clean up and dispose of waste in designated containers
and clean up immediately if containers overflow.
Clean up litter and debris from the construction site daily.
Maintenance:
Inspect waste storage areas to identify containers or equipment that
could malfunction and cause leaks or spills.
Immediately repair or replace any containers that are found to be
defective.
Tips:
During storm events, waste should be stored in watertight dumpsters or
securely covered.
Salvage or recycle waste as appropriate and recycle materials whenever
possible (e.g., paper, wood, concrete, oil).
Designate waste collection areas on-site and
provide adequate signage in English and
Spanish.
Appendix C – Pollution Prevention Practice Specifications
Small Residential Lot SWPPP Template – Page 34
Sanitary Waste Management (PP-3)
Use: Prevent the introduction of wastes from construction site toilet facilities
to storm drains or receiving waters.
Design specifications:
Provide accessible restroom facilities on-site.
Portable toilets should not be located near drainage facilities or receiving
waters, nor should they be located in areas that will collect water.
Do not discharge or bury wastewater at the construction site.
Position portable toilets so that they are secure and will not be tipped or
knocked over.
Provide secondary containment pans under portable toilets, where
possible.
Provide tie-downs or stake downs for portable toilets in areas of high
winds.
Educate employees, subcontractors, and suppliers on locations of
facilities.
Maintenance:
Inspect portable toilets for leaks, and repair or replace any leaks
immediately.
Maintain clean restroom facilities and empty waste regularly.
Ensure that the sanitary/septic facilities are maintained in good working
order and wastes are transported offsite by a licensed service.
Position portable toilets so that they are secure
and will not be tipped or knocked over. Photo
credit: Kentucky Best Management Practices for
Construction Activities, 2005
Appendix C – Pollution Prevention Practice Specifications
Small Residential Lot SWPPP Template – Page 35
Concrete/Stucco Washout Controls (PP-4)
Use: Capture and hold concrete washout water and concrete waste. Use this
BMP at sites in which concrete and stucco waste is present. Concrete waste is
present at most construction sites.
Location: Place washout area in a convenient location for concrete truck
drivers, but away from storm drains, ditches, stormwater inlets, and surface
waters.
Design criteria:
Use pre-determined disposal sites for waste concrete.
Provide adequate signage in relevant languages (English, Spanish, etc.) to
mark washout area.
Direct washout water into a leak-proof container or pit designed so that
no overflows will occur due to inadequate sizing or precipitation.
Do not dump liquid wastes in storm sewers or surface waters, and locate
washout and cleanout activities away from drainage features. If liquids
are present and must be removed, dispose of liquid wastes consistent
with the specifications in PP-1, Materials Storage and Handling.
Use an impermeable, durable plastic liner to prevent leakage of wash
water.
Construct basin sidewalls with straw bales, wood, or earthen berms.
Fabricated washout tanks are available in some areas.
Remove and dispose of hardened concrete waste consistent with how
you dispose of other construction wastes as specified in PP-2,
Construction and Solid Waste Management.
Maintenance:
Inspect washout basins regularly for leakage and overflows.
Immediately repair or replace any that are found to be defective.
Cover washout basins that are full, to promote complete drying of
contents prior to disposal.
Tips:
Work with other builders to share washout basin responsibilities.
Drivers and equipment operators must be instructed on proper disposal
and equipment washing practices (see above).
Removal:
When basin is full, allow contents to dry completely before removal.
Illustration of large concrete washout fabricated
from straw bales, plastic sheeting, and wooden
stakes. Note how sheeting extends well over
sidewalls, and is tucked under bales.
Concrete washout for single lot use made of
straw bales and plastic. Washout is located
away from pavement, storm drains, and ditches
to ensure that any overflow does not move
toward surface waters. Photo credit: Barry
Tonning, Tetra Tech
Appendix D – Example Site Maps
Small Residential Lot SWPPP Template – Page 36
APPENDIX D – EXAMPLE SITE MAPS
The following are a series of example site maps that you can use as a guide for developing your site-specific site maps in Part 7
of this template.
1 Site Boundaries and Layout – Pre-Construction
2 Potential Pollutant Sources and Discharge Locations – Pre-Construction
3 Best Management Practices – Pre-Construction
4 Potential Pollutant Sources and Discharge Locations – Construction Phase
5 Best Management Practices – Construction Phase
Appendix D – Example Site Maps
Small Residential Lot SWPPP Template – Page 37
1.Site Boundaries and Layout – Pre-Construction Phase
Notes:
Site is relatively flat. No surface waters in vicinity.
Appendix D – Example Site Maps
Small Residential Lot SWPPP Template – Page 38
2.Potential Pollutant Sources and Discharge Locations – Pre-Construction Phase
Notes:
Entire site will be disturbed during grading.
Appendix D – Example Site Maps
Small Residential Lot SWPPP Template – Page 39
3.Best Management Practices – Pre-Construction Phase
Notes:
Downgradient areas will be protected with silt fence and fiber roll.
Future driveway will serve as site exit and will be protected with rock exit pad.
Appendix D – Example Site Maps
Small Residential Lot SWPPP Template – Page 40
4.Potential Pollutant Sources and Discharge Locations – Construction Phase
Notes:
Site may include two soil stockpiles during construction phase.
Appendix D – Example Site Maps
Small Residential Lot SWPPP Template – Page 41
5.Best Management Practices – Construction Phase
Notes:
Soil stockpiles will be covered by tarps and surrounded by fiber roll.
Appendix E – Copy of the Construction General Permit
Small Residential Lot SWPPP Template – Page 42
APPENDIX E – COPY OF THE IDNR NPDES GENERAL PERMIT NO.2
Attach a copy of Iowa DNR's NPDES General Permit No.2
Appendix F – Copy of NOI and EPA Authorization Email
Small Residential Lot SWPPP Template – Page 43
APPENDIX F – COPY OF NOI & AUTHORIZATION LETTER
Attach a copy of your complete NOI form and Iowa DNR's Authorization Letter providing
coverage under the IDNA NPDES General Permit No.2
Appendix G – Completed Inspection Reports
Small Residential Lot SWPPP Template – Page 44
APPENDIX G – COMPLETED INSPECTION REPORTS
Attach copies of completed inspection reports.
Date Activity Log
APPENDIX H – ACTIVITY LOG (Document Corrective Actions)
Appendix H – Completed Activity Log