Attachment 3-SWPPP-Inman Creek.PDF

Stormwater Pollution Prevention Plan (SWPPP)

Inman Sanitary Sewer Improvements

Springfield City Code Chapter 96, Article 3 requires that the Responsible Party, defined as the property owner or person authorized to act on the property owner’s behalf, obtain a permit prior to commencing land disturbance activity.

2022PW0049

Project Area Located Between S. Kansas Expy. and S. Parkhill Ave. and W.

Walnut Lawn St. and W. Deerfield St.

Springfield, MO 65807

SWPPP Prepared For:

CITY OF SPRINGFIELD

755 N. FRANKLIN AVE.

SPRINGFIELD, MO 65802

HUNTER BROWN

417-874-1294

HUNTER.BROWN@SPRINGFIELDMO.GOV

SWPPP Prepared By:

Crawford, Murphy & Tilly, Inc.

Jason Clark

1631 West Elfindale

Springfield, MO 65807

417-799-6255 jclark@cmtengr.com

Estimated Project Duration: 9 MONTHS

SWPPP Preparation Date: 06/10/2025

Estimated Project Start Date: Q4 2025

Estimated Project Completion Date: Q2 2026

JA

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08/01/2024

JASON

R. CLARK

NUMBER

PE-2006019640

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FMISSOURI

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06/10/2025

Contents

SECTION 1: NATURE OF CONSTRUCTION ACTIVITY

1.1 Discharge Information

1.2 Construction Support Activities

SECTION 2: SWPPP TEAM CONTACT INFORMATION/RESPONSIBLE PARTIES

2.1 Property Owner: Notification, Certification & Delegation of Authority to

Contractor

2.2 CONTRACTOR GIVEN AUTHORITY: NOTIFICATION &

CERTIFICATION

2.3 Additional Contractors: Notification & Certification

Contractor Agreement

SECTION 3: TRAINING, INSPECTION AND CORRECTIVE ACTION

3.1 Training

3.2 Inspection Personnel and Procedures

SECTION 4: Best Management Practices (BMPs) for Pollution Control

4.1 Phasing of Construction Activities

4.2 Natural Buffers

4.3 Tree and Vegetation Preservation

4.4 Perimeter Controls

4.5 Sediment Track-Out

4.6 Soil, Materials and Borrow/Fill sites

4.7 Minimization of Dust

4.8 Minimization of Disturbance of Steep Slopes

4.9 Stormwater Control Measures

4.10 Storm Drain Inlets

4.11 Constructed Stormwater Conveyance Channels

4.12 Sediment Basins and Sediment Traps

4.13 Treatment Chemicals and Flocculants

4.14 Allowable Non-Stormwater Discharges

4.15 Dewatering Practices and Water Diversions

4.16 Wash Water (Paving, Concrete, Stucco, Paint and Equipment/Vehicle)

4.17 Fuel, Oil, and Petroleum Products (Equipment and Vehicles)

4.18 Chemical Storage, Handling and Spill Response

4.19 Pesticides, Herbicides, Insecticides, Fertilizers, and Landscape Materials

4.20 Waste Management (Trash and Recycling Dumpster, Portable Toilet)

SECTION 5: SITE STABILIZATION

5.1 Temporary Stabilization

5.2 Final Permanent Stabilization

5.3 Explanation for Delayed Completion of Stabilization

SECTION 6: PERMIT TERMINATION OR RENEWAL

6.1 Directions for Permit Termination

SECTION 7: DOCUMENTATION OF COMPLIANCE WITH OTHER FEDERAL

REQUIREMENTS

7.1 US Army Corps of Engineers (USACE) Clean Water Act (WCA) Section 404 permit Cover Page

7.2 Missouri State Operating Permit MORA00000

7.3 Endangered Species Protection

7.4 Historic Preservation

APPENDIX

Appendix A: US Army Corps Engineers (USACE) Clean Water Act (CWA) Section 404 permit Cover Page, Appendix B: Missouri State Operating Permit MORA00000 Cover Page Appendix C: Endangered Species Protection IPaC and Natural Heritage Review

Documents Appendix D: State Historic Preservation 106 Review Documents Appendix E: Self-Inspection Form Appendix F: Site Maps, Plans and Details Sheet Appendix G: Site Sign

SECTION 1: NATURE OF CONSTRUCTION ACTIVITY

Instructions:

• Describe the function of the project and estimate the total area expected to be disturbed by tree removal, excavation, grading, or other construction support activities, including, but not limited to, off-site borrow and fill areas.

• Provide a general description of the nature of the construction activities at your project.

• What is the size of the property (in acres), the total area expected to be disturbed by the construction activities (in acres), and the maximum area expected to be disturbed at any one time? Include the area needed for material production such as batch plants and storage of materials or piles.

• A general map (e.g., United States Geological Survey quadrangle map, a portion of a city of county map, or other map) with enough detail to identify the location of the construction site and waters of the state within one mile of the site.

General Description of Project

This project serves to reduce sanitary sewer overflows by abandoning the existing sewer main and replacing it with a larger sewer main. The project will improve the hydraulic capacity of the sewer system while decreasing inflow and infiltration.

Approximately 3,800 linear feet of pipe will be installed via open cut excavation, replacing the older sewer segments.

Size of Construction Project

TOTAL ACREAGE OF PROPERTY: 4.22 Acres

TOTAL ACREAGE TO BE DISTURBED BY ACTIVITY: 4.22 Acres

TOTAL ACREAGE TO BE DISTURBED AT ONE TIME DURING EACH PHASE OF THE SITE (refer to phasing and stabilization section for more information): TOTAL ACREAGE DISTURBED AT ONE TIME DURING EACH PHASE (repeat for each phase)

See Sheets 16-19 for additional phase details.

Phase 1 = 1.62 Acres

Phase 2 = 1.34 Acres

Phase 3 = 0.78 Acres

Phase 4 = 0.48 Acres

Public Improvement Project: 2022PW0049

The site is associated with a Public Improvement Project.

The Public Improvement is inside the area of disturbance.

The Public Improvement is connected and continues outside of the area of disturbance.

Land Disturbance Permit Type:

General (for full plan submittal of architectural and civil site improvements)

Stand-alone (for land disturbance only)

Phased submittal of Civil Site Improvements

1.1 Discharge Information

• Describe water resources found on or near the site.

• Describe the locations and methods (e.g. channel or sheet flow) of water leaving the site through all site outfalls.

• List the name of the first surface water that receives discharges from your site. If your site has discharges to multiple surface waters, indicate the names of all such waters.

• You may utilize the City of Springfield’s GIS Viewer program found on the website. Under “Table of Contents,” select the “Streams” layer.

General Description of Water Resources found on Site (e.g. streams and sinkholes) and Stormwater Outfalls (where the water leaves the site).

The stormwater outfall is located at the most western point of construction. Runoff discharges to Inman Creek which drains into

Wilson’s Creek. Most construction will take place on the edge of a large sinkhole located at the NW corner of S Kansas Ave and

W Walnut Lawn St.

List Receiving Waters

The receiving water is Inman Creek which drains into Wilson’s Creek.

Are the Receiving Waters within the watershed of Outstanding National or State Resource Water or in the watershed of a water impaired for sediment? (Note: The 303(d) list published in 2022 does not include impairments for sediment within any watershed regulated by the City of Springfield MS4.)

Yes

No

1.2 Construction Support Activities

Instructions:

• Will there be any construction support activities for the project (e.g., concrete or asphalt batch plants, equipment staging yards, material storage areas)?

• Describe how the support activities will be contained and stormwater runoff prevented.

Description of construction support activity and BMPs used to prevent runoff.

Equipment and material staging areas have been designated within the limits of construction. Material stockpile areas will be protected by perimeter controls and located as shown on the plans.

A designated concrete washout area shall be constructed in accordance with the details included in the plans and bid documents.

Concrete washout activities shall be contained to the established washout area.

Support activity subcontractor:

COMPANY OR ORGANIZATION NAME_______________________________

NAME____________________________________________________________

ADDRESS_________________________________________________________

ADDRESS_________________________________________________________

CELL PHONE NUMBER_____________________________________________

OFFICE PHONE NUMBER___________________________________________

EMAIL____________________________________________________________

Location of construction support activity

Construction support activities will be staged as shown on the plans or at locations approved by the engineer/owner.

SECTION 2: SWPPP TEAM CONTACT INFORMATION/RESPONSIBLE

PARTIES

2.1 Property Owner: Notification, Certification & Delegation of Authority to Contractor

Instructions:

• The following certification statement must be signed and dated by the owner or legally authorized representative.

o For a corporation, this could be a president, secretary, treasurer, or vice president, or any other person who performs similar policy or decision-making functions for the corporation.

o For a partnership or sole proprietorship, this could be a general partner or the proprietor.

o For a municipality, state, federal or other public agency, this could be a principal executive officer or ranking elected official.

• This certification must be re-signed in the event of a SWPPP Modification.

Property Owner/Permittee:

City of Springfield

Hunter Brown

755 N Franklin Ave.

Springfield, MO 65802

Office: 417-874-1294

Hunter.brown@springfieldmo.gov

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.

Submittal of the SWPPP and/or permit fee does not imply that the permit has been or will be authorized or issued.

The permit fee will be adjusted according to the fee schedule if it's determined during the review process of the

SWPPP that the area to be disturbed is more or less than that represented on the application.

I hereby certify that I am the legal owner of the property for which this permit is requested or his/her legally authorized agent.

OWNER: Please Use Ink to Print Name, Sign and Date

2.2 CONTRACTOR GIVEN AUTHORITY: NOTIFICATION & CERTIFICATION

• The designee is authorized if:

o The authorization is made in writing by the individual making the designation.

o The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as an operator, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company.

o The signed and dated written authorization is included in the SWPPP.

Delegation of Authority

I, _______________________ (OWNER/PERMITTEE), hereby designate the person or specifically described position below to be a duly authorized representative for the purpose of overseeing compliance with environmental requirements, including the Missouri State Operating Permit, at (CONSTRUCTION SITE)

The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. This person will conduct inspections in accordance with the inspection schedule in Section

3.2

General Contractor:

Site Superintendent and/or designated Inspector #1 (makes decisions for corrective actions)

Name of person_________________________________________

Company______________________________________________

Cell Phone_____________________________________________

Email_________________________________________________

Site Superintendent and/or designated Inspector #2 (makes decisions for corrective actions)

Name of person: Spencer Morrisey

Company: City of Springfield

Cell Phone: 417-844-1758

Email: smorrissey@springfieldmo.gov

[Repeat as needed for Contractor team.]

Delegation of Authority Continued

By signing this authorization, I confirm that I meet the requirements to make such a designation, and that the designee above meets the definition of a “duly authorized representative.”

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.

OWNER: Please Use Ink to Print Name, Sign and Date

CONTRACTOR NOTIFICATION OF

STORMWATER POLLUTION PREVENTION PLAN

While working at a permitted job-site, you are required to comply with the Stormwater Pollution Prevention Plan

(SWPPP). Any person or group who violates any condition of the SWPPP may be subject to substantial penalties or loss of contract (if under a contractual agreement). 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 on-site and shall be made available upon request.

Each contractor 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 practices described in the SWPPP.

Site Superintendent and/or designated Inspector #1

CONTRACTOR: Please Use Ink to Print Name, Sign and Date

Site Superintendent and/or designated Inspector #2

[Repeat as needed for Contractor team.]

2.3 Additional Contractors: Notification & Certification

• List the additional contractors expected to work on-site. Notify contractors of stormwater requirements applicable to their work.

• “Subcontractor” refers to any person or company performing work on-site for completion of the project, not just entities under contractual agreement.

• Only contractors performing activities which could impact stormwater quality (working in the dirt) need to be listed.

ALL ADDITIONAL CONTRACTORS MUST SIGN THE CONTRACTOR AGREEMENT FOUND IN

THE APPENDIX.

Additional Contractors: Demolition, Excavation, Dirt Work, ESC Contractor, Plumbing & Utilities must sign the Contractor Agreement found in the appendix.

COMPANY OR ORGANIZATION NAME_______________________________

NAME____________________________________________________________

ADDRESS_________________________________________________________

ADDRESS_________________________________________________________

CELL PHONE NUMBER_____________________________________________

NAME____________________________________________________________

ADDRESS_________________________________________________________

ADDRESS_________________________________________________________

CELL PHONE NUMBER_____________________________________________

NAME____________________________________________________________

ADDRESS_________________________________________________________

ADDRESS_________________________________________________________

CELL PHONE NUMBER_____________________________________________

Contractor Agreement

CONTRACTOR NOTIFICATION OF STORMWATER POLLUTION PREVENTION PLAN

While working at a permitted jobsite, you are required to comply with the Stormwater Pollution Prevention Plan

(SWPPP). Any person or group who violates any condition of the SWPPP may be subject to substantial penalties or loss of contract (if under a contractual agreement). 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 on-site and shall be made available upon request.

Each contractor 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 practices described in the SWPPP.

SECTION 3: TRAINING, INSPECTION AND CORRECTIVE ACTION

3.1 Training

Instructions:

• The Responsible Party (Permittee or Designee) is required to complete regularly scheduled erosion and sediment control inspections. The State Operating Permit issued through the Missouri Department of Natural Resources

(MDNR) requires that these inspections shall be conducted by a qualified person, one who is responsible for environmental matters on the site, or a person trained by and directly supervised by the person designated as the

Environmental Lead at the site. The following website provides sources for educational webinars, conferences, professional networking, and formal certifications: https://www.springfieldmo.gov/5875/Training-Outreach-

Materials.

3.2 Inspection Personnel and Procedures

Instructions:

• Describe the procedures you will follow for conducting inspections.

• Describe the procedures you will follow for corrective action.

• The person/people conducting inspections and corrective actions must be delegated as the people/person of authority.

• Site Superintendent and/or designated Inspector are responsible for conducting inspections and corrective actions.

Inspection Schedule:

Choice A

▪ SELF INSPECTION FORM TO BE USED FOR THIS SITE IS IN THE APPENDIX.

▪ Inspection will be done at least once per 7 calendar days. Inspections must also occur within 48 hours after any rain event equal to or greater than 3.74 inches (2-year, 24-hour storm) and has ceased during a normal work day and within 72 hours if the rain event ceases during a non-work day such as a weekend or holiday.

Choice B

▪ SELF INSPECTION FORM TO BE USED FOR THIS SITE IS IN THE APPENDIX.

Inspections shall be conducted once per 14 calendar days and within 24 hours of the occurrence of a storm event of 0.25 inches of precipitation or greater, or the occurrence of runoff from snowmelt. Additionally, an inspection shall be conducted within 24 hours of the event end, or within 72 hours if the rain event ceases during a non-workday (weekend or holiday). To determine inches of precipitation, the permittee shall keep a properly maintained rain gauge on site or obtain the storm event information from a nearby weather station, such as http://www.123mc.com/ (Username: rain@springfieldmo.gov; Password:

rainfall1).

o Inspections are only required during project normal working hours. Areas on-site that have been finally stabilized must be inspected at least once per month.

http://www.123mc.com/

Corrective Action Schedule to be used for choice A and B

Any structural or maintenance problems shall be noted in an inspection report and corrected within seven calendar days of the inspection. If weather conditions prevent correction of BMPs within 7 calendar days, the reasons for the delay must be documented (including pictures) and there must be a narrative explaining why the work cannot be accomplished within the 7-day time period. The documentation must be filed with the regular inspection reports, and the problem shall be corrected as soon as weather conditions allow. The responsible person must be notified by phone, text or email when stormwater runoff occurs.

Frozen Conditions

▪ If construction activities are suspended due to frozen conditions, the permittee may temporarily reduce site inspections to monthly until thawing conditions begin if all the following are met:

o Land Disturbance has been suspended;

o All disturbed areas have been stabilized with temporary BMPs; and o The inspection frequency change is noted within the SWPPP

SECTION 4: Best Management Practices (BMPs) for Pollution Control

General Instructions:

• Describe the erosion and sediment controls that will be installed and maintained at your site.

• BMPs shall be maintained and remain in effective operating condition during the entire duration of the project.

• COMBINE ALL BMP DESIGNS WITH PHASING TABLES TOGETHER ON ONE LARGE DETAIL PLAN SHEET

AND INCLUDE THEM ON THE EROSION CONTROL SITE PLANS.

• Ensure the design, installation and maintenance of effective erosion, sediment and chemical controls to minimize the discharge of pollutants. At a minimum, such controls shall be designed, installed and maintained to:

o Control storm water volume, velocity, and peak flow rates within the site to minimize soil erosion;

o Control storm water discharges, including both peak flow rates and total storm water volume, to minimize erosion at outlets and to minimize downstream channel and streambank erosion and scour;

o Minimize the amount of soil exposed during construction activity;

o Minimize the disturbance of steep slopes;

o Minimize sediment discharges from the site. Address factors such as the amount, frequency, intensity and duration of precipitation, the nature of resulting storm water runoff, expected flow from impervious surfaces, slopes, and drainage features, and soil characteristics, including the range of soil particle sizes expected to be present on the site;

o Provide and maintain natural buffers around surface waters of the state as detailed in Section 4.2, direct storm water to vegetated areas to increase sediment removal and maximize storm water infiltration and filtering, unless infeasible;

o Minimize soil compaction and preserve topsoil where practicable; and o Capture or treat a 2-year, 24-hour storm event.

BMP Details and Design Narratives:

BMP DESIGN DETAIL, DESCRIPTION AND NARATIVE NOTES ARE PROVIDED ON EROSION SEDIMENT

CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON EROSION CONTROL

PLAN.

BMP Notes shall address the following:

• BMP Type

• Physical Description

• Site Conditions that must be met for effective use of the BMP

• BMP Installation and Construction Procedures, including typical drawings

• Operation and Maintenance Procedures

• Whether the BMP is Temporary or Permanent

• Site Conditions that must be met before removal of the BMP if it is not a permanent BMP.

THE CITY OF SPRINGFIELD’S BMP DETAILS ARE DESIGNED TO PROVIDE ALL NECESSARY NARRATIVE

INFORMATION IN THE BMP NOTES. THESE DETAILS ARE AVAILABLE ONLINE HERE:

https://www.springfieldmo.gov/5874/Best-Management-Practices.

https://www.springfieldmo.gov/5874/Best-Management-Practices

4.1 Phasing of Construction Activities

• Describe the intended sequence and timing of activities that disturb soils at the site. For each phase of construction, include the following information:

• Installation of structural or non-structural Best Management Practices (BMPs);

• Beginning and duration of earth-disturbing activities, including clearing and grubbing, demolition, mass grading, site preparation (i.e., excavating, cutting and filling), final grading, and creation of soil and vegetation stockpiles requiring stabilization;

• Cessation, temporarily or permanently, of construction activities on the site, or in designated portions of the site;

• Final or temporary stabilization of areas of exposed soil. The dates for stabilization must reflect applicable deadlines;

• Make sure that the phases for installation of each BMP are consistent with installation sequencing;

• The number of phases should be determined by the SWPPP Preparer as appropriate for the site; and

• COMBINE ALL TYPICAL BMP DESIGN DETAILS WITH PHASING TABLE ON ESC DETAIL

PLAN SHEET.

Phase Instructions, Tips & Tricks Start

Date

Construction

Sequence

BMPs- Check the BMPs that will be installed and maintained.

End

Date

P re

-C o n st ru ct io n

Initial BMPs are to be installed prior to any other activity on-site. Call City at 864-2087 for an initial BMP inspection as soon as this has been done.

The following is needed to pass this inspection:

1. Installation of Pre-con BMPs.

2. SWPPP on-site.

3. Site sign posted.

Upon successful completion of installation, a City Land Disturbance

Permit will be issued. The hold on the building permit will also be released at this time. If a temporary sedimentation basin is required, the permit will be issued upon completion and inspection of the basin.

__/__/__ a. Initial BMP &

SWPPP

Installations

LDP Site Sign is displayed and SWPPP is stored where sign designates

Construction exits

Perimeter control

(sock, fence, or other)

Tree protection fencing

Inlet protection for existing inlets

Construction

Sequence

BMPs- Check the BMPs that will be installed and maintained.

End

Date P h a se

D em o li ti o n a n d G ra d in g

Demolition and tree removal is the first phase of construction.

When removing vegetation, it is a good practice to chip some of the material on-site and apply as a mulch ground cover. The mulch protects the soil from the erosive impact of rainfall. It also protects the roots of remaining trees from soil compaction.

Utilize fencing and/or signage to indicate preservation of vegetation.

__/__/__ a. Demolition /

Clearing

Contain and cover building materials containing PCBs

Preservation of existing vegetation

Dust control

Street sweeping

If a sedimentation basin is called for, it should be installed with temporary outfall pipe and emergency spillway prior to any other grading activity.

The State requires installation of a sedimentation basin for each drainage area with ten or more acres disturbed at one time. The basin shall be sized to contain a volume of at least 3,600 cubic feet per each disturbed acre draining thereto.

After the sedimentation basin has been installed, contact the City at

864-2087 for an inspection. At this time, the hold on the building permit will be released.

__/__/__ b. Sedimentation

Basins/traps

Sedimentation basin

Sediment trap

It is always best to try to limit the area of disturbance at any given time. Rather than mass grading, leave areas of vegetation. A vegetated strip between limits of grading and the perimeter

BMP both enhances the effectiveness of the perimeter control and increases its lifespan, as it is less likely to be damaged by equipment.

Once a parking area has been graded, lay base-rock if possible. This will greatly cut down on track-out.

Seed and stabilize stockpiles.

Remember, vegetation is always the best BMP.

__/__/__ c. Grading Soil binders

Retain topsoil

Stockpile protection

Slope drains

Stream crossing

Water diversion

Dewatering

Dust Control

Consider the quantity of water that will need to be diverted and if the water is saturated with clay, it will need to be filtered with a BMP.

Consider clean water in and clean water out. Try to completely bypass clean water beyond the work area.

Cut trees off to a stump and leave it in place. The stumps and roots provide bank stability. As it decomposes, more vegetation will take root.

Earthen coffer dams are not excepted.

__/__/__ d. Stream

Alteration

Stream Diversion

Water Bypass Pipe

Dewatering Work

Area

Flush Cut Tree

Removal while leaving stump and roots

Cofferdam

Berm

Stream Crossing

Construction

Sequence

BMPs- Highlight/Circle

BMPs that will be installed/maintained during the associated phase

End

Date

P h a se

C o n st ru ct io

As stormwater system becomes active, protect new inlets. Add ditch checks, check dams, and erosion control blanket as specified in the plan.

__/__/__ a. Drainage System

Installation

Ditch checks

Check dams

Inlet protection for new inlets

Make sure that communication is happening between you and your utility contractor. If they will need to access within a tree preservation zone, discuss alternatives to trenching, such as boring. If utilities must be trenched contact Sarah Davis at 380-2817 so root cuts can be documented.

__/__/__ b. Utilities

Installation

Sign subcontractor agreement

All wash-out pits should be lined in plastic.

__/__/__ c. Paving Concrete wash-out pit __/__/__

Windblown trash and debris is considered a pollutant.

__/__/__ d. Construction Plastic lined masonry area

Trash Dumpster

These BMPs include bioretention, infiltration trenches, pervious pavement, and pavers, etc.

If these features become clogged with sediment and/or compacted by equipment, they will not function properly.

__/__/__ e. Permanent BMP

Installations

Prevent soil compaction

Protect permanent structures

Remediate soils

Construction

Sequence

BMPs- Check the BMPs that will be installed and maintained.

End

Date

P h a se

S ta b il iz a ti o

Stabilization must be initiated immediately and completed within seven (7) calendar days where soil disturbing activities have temporarily ceased on any portion of the site and will not resume for a period exceeding fourteen (14) calendar days. Interim stabilization shall consist of well established and maintained BMPs.*

*Temporary stabilization is met with functioning perimeter control BMPs.

__/__/__ a. Temporary

Stabilization

Hydroseed, Seed/straw

Sod

Perimeter control

BMPs

Seed mix used:

Turf reinforcement mat

Erosion control blanket

Final stabilization of disturbed areas must be initiated immediately and completed within seven (7) calendar days whenever any clearing, grading, excavating, or other earth disturbing activities have permanently ceased on any portion of the site.

To prevent the loss of topsoil, seed and straw, utilize temporary BMPs such as:

erosion control blanket, turf reinforcement mat, ditch checks, and perimeter control.

__/__/__ b. Permanent

Stabilization

Hydroseed

Seed/straw

Sod

Seed mix used:

Turf reinforcement mat

Erosion control blanket

Stone and Rip-Rap

Other method controlling the movement of top soil (please describe)

4.2 Natural Buffers for Surface Waters

• (For surface waters of the state, defined in Section 644.016.1(27) RSMo, located on or adjacent to the site, the permittee must maintain a riparian buffer or structural equivalent in accordance with at least one of the following options. The selection and location must be described in the SWPPP.

a) Provide and maintain a 50-foot undisturbed natural buffer; or

b) Provide and maintain an undisturbed natural buffer that is less than 50 feet and is supplemented by erosion and sediment controls that achieve the sediment load reduction equivalent to a 50-foot undisturbed natural buffer; or

c) If infeasible to provide and maintain an undisturbed natural buffer of any size, implement erosion and sediment controls to achieve the sediment load reduction equivalent to a 50-foot undisturbed natural buffer.

d) The permittee is not required to comply with (a), (b), or (c) above if one or more of the following exceptions apply and documentation is provided in the SWPPP:

1) If there is no discharge of stormwater to waters of the state through the area between the disturbed portions of the site and waters of the state located within 50 feet of the site. This includes situations where the permittee has implemented permanent control measures that will prevent such discharges, such as a berm or other barrier.

2) Where no natural buffer exists due to preexisting development disturbances that occurred prior to the initiation of planning for the current development of the site.

• Where some natural buffer exists but portions of the area within 50 feet of the waters of the state are occupied by preexisting development disturbances the permittee is required to comply with

(a), (b), or (c) above.

3) For linear projects where site constraints make it infeasible to implement a buffer or equivalent provided the permittee limit disturbances within 50 feet of any waters of the state and/or the permittee provides supplemental erosion and sediment controls to treat stormwater discharges from earth disturbances within 50 feet of the water of the state. The permittee must also document in the SWPPP the rationale for why it is infeasible for the permittee to implement (a), (b), or (c) and describe any buffer width retained and supplemental BMPs installed.

e) Where the permittee is retaining a buffer of any size, the buffer should be measured perpendicularly from any of the following points, whichever is further landward from the water:

1) The ordinary high-water mark of the water body, defined as the line on the shore established by fluctuations of water and indicated by physical characteristics such as a clear, natural line impressed on the bank, shelving, changes in the character of soil, destruction of terrestrial vegetation, and/or the presence of litter and debris; or

2) The edge of the stream or riverbank, bluff, or cliff, whichever is applicable.

• If Buffer disturbances are authorized as part of in-stream work under a US Army Corps Engineers (USACE) Clean Water Act

(WCA) Section 404 permit, no further documentation is required for Section 4.1 of the Template. Attach CWA Section 404

Permit. This exception only applies to the limits of disturbance authorized under the Section 404 permit, and does not apply to any upland portion of the construction project.

• Indicate the boundaries of the preserved buffer on site map.

Are there any surface waters within 50 feet of your project’s earth disturbances?

No (If no, no further documentation is required for the SWPPP Template.)

Yes, I will provide and maintain a 50-foot undisturbed natural buffer as per ESC plan.

Yes, buffer will be less than 50-foot supplemented by erosion and sediment controls that achieve the sediment load reduction equivalent to 50-foot undisturbed natural buffer.

Yes, however I will NOT provide and maintain an undisturbed natural buffer of any size.

▪ INSERT RATIONALE FOR CONCLUDING THAT IT IS INFEASIBLE TO PROVIDE AND

MAINTAIN A NATURAL BUFFER OF ANY SIZE

Yes, however buffer disturbances are authorized as part of in-stream work under an Army Corps Section 404 permit found in Appendix.

▪ INSERT DESCRIPTION OF ANY EARTH DISTURBANCES THAT WILL OCCUR WITHIN

THE BUFFER AREA

Yes and buffer disturbances will occur for the construction of a water-dependent structure or water access area

(e.g., pier, boat ramp, and trail).

▪ INSERT DESCRIPTION OF ANY EARTH DISTURBANCES THAT WILL OCCUR WITHIN

THE BUFFER AREA

4.3 Tree and Vegetation Preservation

• The SWPPP shall require existing vegetation and trees to be preserved where practical.

• Indicate all trees and vegetated areas that will be preserved on your site map or on a separate tree preservation plan

Will any areas of existing vegetation other than for surface water buffers be preserved during construction?

YES, this project will practice preservation of existing vegetation as a non-structural BMP.

NO, existing vegetation will not be preserved.

INSERT RATIONALE FOR CONCLUDING THAT IT IS IMPRACTICAL TO PRESERVE EXISTING

VEGETATION.

Check box if section is NOT applicable.

INSERT RATIONALE FOR CONCLUDING THAT IT IS IMPRACTICAL TO PRESERVE TREES.

Best Management Practice Applicable: https://www.springfieldmo.gov/5874/Best-Management-Practices

BMP DESIGN DETAIL, DESCRIPTION AND NARATIVE NOTES ARE PROVIDED ON EROSION

SEDIMENT CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON

EROSION CONTROL PLAN.

4.4 Perimeter Controls

Instructions:

• Describe sediment controls used along any perimeter areas of the site that are downgradient from any exposed soil or other disturbed areas.

SEDIMENT CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON

EROSION CONTROL PLAN.

4.5 Sediment Track-Out

Instructions:

• Restrict vehicle traffic to designated exit points

• Use additional controls to remove sediment from vehicle and equipment tires prior to exit from facility where necessary.

• Any sediment or debris that is tracked out past the exit pad or is deposited on a roadway after a precipitation event shall be removed the shorter of either daily or before a rain event.

• Describe how track-out will be removed (sweeping, shoveling, vacuuming, or other similarly effective means).

• Explain how removed track-out will be disposed of (note: shall not be disposed of into any stormwater conveyance, storm drain inlet, or water of the state).

• Stormwater inlets susceptible to receiving track-out or other pollutants shall have curb inlet protection. This may include inlets off the active area where track-out could impact the stormwater runoff to those inlets.

SEDIMENT CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON

EROSION CONTROL PLAN.

https://www.springfieldmo.gov/5874/Best-Management-Practices

4.6 Soil, Materials and Borrow/Fill sites

• Piles shall be located outside of any designated natural buffer zone and away from any stormwater conveyance, drain inlets, and areas where stormwater flow is concentrated.

• Stormwater runoff shall be prevented from eroding stockpiles, and a sediment barrier shall be installed at the downgradient of any stockpile.

• Stockpiles left unused for 14 days or more shall be protected with an appropriate temporary stabilization method.

• Describe how topsoil will be preserved where practicable and identify these areas and control measures on your site map(s).

• Indicate if a borrow/fill site will be used for the project and provide information of permitted or non-permitted site.

Borrow/fill sites (excavated material disposal areas, borrow areas)

Excess soil will be disposed of:

On-site

Off-site area is covered under this project’s permit numbers and will be stabilized following construction per the stabilization plan.

Off-site area will not be stabilized following construction, a separate permit is needed.

Additional fill soil will be obtained from:

Off-site

SEDIMENT CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON

EROSION CONTROL PLAN.

Borrow/Fill site

City LDP#__________________________________________________________

State Permit #_______________________________________________________

COMPANY OR ORGANIZATION NAME_______________________________

ADDRESS_________________________________________________________

CELL PHONE NUMBER_____________________________________________

Disposal site

City LDP#__________________________________________________________

State Permit #_______________________________________________________

COMPANY OR ORGANIZATION NAME_______________________________

ADDRESS_________________________________________________________

CELL PHONE NUMBER_____________________________________________

4.7 Minimization of Dust

o Describe controls and procedures you will use at your project/site to minimize the generation of dust.

SEDIMENT CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON

EROSION CONTROL PLAN.

4.8 Minimization of Disturbance of Steep Slopes

Instructions:

o Describe how you will minimize the disturbance of steep slopes.

o Describe controls (e.g., erosion control blankets, tackifiers), including design, installation and maintenance specifications, that will be implemented to minimize sediment discharges from slope disturbances.

SEDIMENT CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON

EROSION CONTROL PLAN.

4.9 Stormwater Control Measures

Instructions:

• Describe BMPs to protect detention/water quality stormwater control measures (pervious pavement, bioretention, underground detention) from sediment impacts during construction.

SEDIMENT CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON

EROSION CONTROL PLAN.

4.10 Storm Drain Inlets

Instructions:

• Describe controls that will be implemented to protect all inlets that will receive stormwater from your construction activities and that you have authority to access.

SEDIMENT CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON

EROSION CONTROL PLAN.

https://www.springfieldmo.gov/5874/Best-Management-Practices https://www.springfieldmo.gov/5874/Best-Management-Practices

4.11 Constructed Stormwater Conveyance Channels

• If you will be installing a stormwater conveyance channel, describe control practices (e.g. velocity dissipation devices) that will be implemented at the construction site.

Check box if section is NOT applicable

SEDIMENT CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON

EROSION CONTROL PLAN.

4.12 Sediment Basins and Sediment Traps

Instructions:

• A sedimentation basin will be provided for each drainage area with 10 or more acres disturbed at one time. The basin shall be sized to treat a local 2-year, 24-hour storm. Include design specifications for each basin including volume, dimensions and outlet structure.

• Sediment basins must also utilize outlet structures that withdraw water from the surface unless infeasible.

• Temporary and permanent sedimentation basins must have a stabilized spillway to minimize the potential for erosion of the spillway or basin embankment.

o Discharges from the basin shall not cause scouring of the banks or bottom of the receiving stream.

• Accumulated sediment shall be removed from the basin when the basin is 25% full. The basin shall be maintained until final stabilization of the disturbed area served by the basin.

• If use of a sediment basin is impractical, similarly effective BMPs must be chosen and employed to control erosion and sediment delivery. These similarly effective BMPs must provide equivalent water quality protection.

• Sediment traps are smaller and do not require a temporary outfall structure. However, a dewatering plan may be required to empty traps, such as a pump with filtering BMP.

• Prevent discharges to the receiving stream which could cause sediment plumes or cloudiness.

• Any basin dewatering shall be inspected daily when discharge is occurring; and if the receiving stream is being impacted dewatering shall cease immediately. These inspections shall be noted on a log or within the inspection report. A dewatering log template can be found in Section 4.15.

Check box if section is NOT applicable

4.13 Treatment Chemicals and Flocculants

• Provide details below if you are using treatment chemicals (polymers, flocculants, etc.) at your site.

Treatment Chemicals

• List all treatment chemicals that will be used at the site

• Describe the dosage of all treatment chemicals you will use at the site or the methodology you will use to determine dosage

• Provide information from any applicable Material Safety Data Sheets (MSDS)

• Describe how each of the chemicals will stored

Schematic Drawings of Stormwater Controls/Chemical Treatment Systems

• Provide schematic drawings of any chemically enhanced stormwater controls or chemical treatment systems to be used for application of treatment chemicals: INSERT TEXT HERE

Training

• Describe the training that personnel who handle and apply chemicals have received prior to permit coverage, or will receive prior to the use of treatment chemicals: INSERT TEXT HERE

SEDIMENT CONTROL DETAIL SHEET AND LISTED ON PHASING PLAN. ALL BMPS ARE SHOWN ON

EROSION CONTROL PLAN.

4.14 Allowable Non-Stormwater Discharges

Instructions:

• Identify all allowable sources of non-stormwater discharges including:

o Water only (i.e., without detergents or additives) rinsing of streets and buildings; and o Site watering to establish vegetation.

Fire hydrant flushing

Landscape irrigation

Potable water including uncontaminated water line flushing

Routine external building wash off waters

Pavement wash off waters through a BMP

4.15 Dewatering Practices and Water Diversions

• If you will be discharging water that is removed from excavations, trenches, foundations, vaults, or other similar points of accumulation, include design specifications and details of all dewatering practices.

• List specific BMPs designed to treat water pumped from trenches and excavations and in NO CASE shall this water be pumped off-site without being treated by the specific BMP.

• When working within a waterway, it may be necessary to divert water around the job site using a berm, pipe, or pump structure. This is an ideal BMP as it keeps the work area dry and water is not exposed to sediment.

• Any basin dewatering shall be inspected daily when discharge is occurring. The discharge shall be observed and dewatering activities shall be ceased immediately if the receiving stream is being impacted. These inspections shall be noted on a log or on the inspection report.

4.16 Wash Water (Paving, Concrete, Stucco, Paint and Equipment/Vehicle)

• Describe how you will minimize the discharge of pollutants from wash waters and process water associated with paint, concrete and mortar activities.

• Describe equipment/vehicle rinsing practices that will be used to minimize the discharge of pollutants from equipment and vehicle rinsing. No detergents, additives, or soaps of any kind shall be used. Rinse waters must be treated in a sediment basin or alternative control that provides equivalent or better treatment prior to discharge.

• Locate concrete washout facilities a minimum of 50 feet from waters of the state, stormwater inlets and/or stormwater conveyances. Wash water shall be directed into a leak-proof washout and disposed of once 75% capacity is reached.

Paving Operations- Sediment, Oils & Grease, Trash, Debris, Solids

Concrete Wash-Out and Cement Waste- Heavy Metals, pH (acids and bases), Trash, Debris, Solids

Structure Construction, Stucco, Painting and Cleaning- Heavy Metals, pH (acids and bases), Trash, Debris, Solids, Toxic Chemicals

Equipment/Vehicle Rinsing- Sediment, Heavy Metals, pH (acids and bases), Oils & Grease, Trash, Debris, Solids, Toxic Chemicals

4.17 Fuel, Oil, and Petroleum Products (Equipment and Vehicles)

• All fueling will adhere to applicable federal and state regulations concerning underground storage, above ground storage and dispensing.

• Describe how you will minimize the discharge of pollutants from fuel, oil, and petroleum products associated with equipment and vehicles.

• Describe fueling, storage and mechanic practices that will be used to minimize the discharge of pollutants (e.g.

locating activities away from surface waters and stormwater inlets or conveyances, containing activities with plastic liners, using filtration devices such as filter bags or sand filters, or using other similarly effective controls).

• Implement chemical spill and leak prevention and response procedures. These procedures include but are not limited to maintenance of spill kits, installation of containment berms, and use of drip pans at petroleum product and liquid storage tanks and containers.

Check box if section is not applicable.

Fueling- pH (acids and bases), Oils & Grease, Toxic Chemicals

Equipment Maintenance- Sediment, Nutrients, Heavy Metals, pH (acids and bases), Pesticides/Herbicides, Oils

& Grease, Trash, Debris, Solids, Toxic Chemicals

Other Toxic Chemicals- DESCRIBE HERE

▪ Fuel, oil, and other petroleum products will not be stored below the ordinary high water mark at any time or in the adjacent floodway beyond normal working hours. All fueling facilities present on the site shall adhere to applicable federal and state regulations concerning underground storage, above ground storage, and dispensers. All fuel, oil, and other fluids exposed to precipitation shall be stored in watertight, structurally sound, closed containers.

▪ Minimize the discharge of fluids from spills and leaks by implementing chemical spill and leak prevention and response procedures, including, but not limited to, installation of containment berms and use of drip pans.

▪ Machinery will be kept out of the waterway as much as possible.

▪ No fueling, servicing, maintenance or repair of equipment or machinery should be done within 100 feet of a stream, or within 150 feet of a classified stream, losing stream, or sinkhole.

▪ Tarps or drop cloths and drip pads should be used when servicing, repairing, or performing maintenance on construction equipment in the field.

▪ When work is complete, the contaminated materials should be disposed of appropriately.

4.18 Chemical Storage, Handling and Spill Response

• All chemicals will adhere to applicable federal and state regulations concerning storage and dispensing.

• Describe how you will minimize the discharge of pollutants from chemicals associated with construction activities.

• Describe storage and dispensing practices that will be used to minimize the discharge of pollutants (e.g. locating activities away from surface waters and stormwater inlets or conveyances, containing activities with plastic liners, using filtration devices such as filter bags or sand filters, or using other similarly effective controls).

• Describe the spill response plan for minor and major spills over 25 gallons.

• Implement chemical spill and leak prevention and response procedures. These procedures include but are not limited to maintenance of spill kits, installation of containment berms, and use of drip pans and liquid storage tanks and containers.

Material/Chemical Delivery and Storage- Sediment, Nutrients, Heavy Metals, pH (acids and bases), Oils &

Grease, Trash, Debris, Solids, Toxic Chemicals

Material/Chemical Use During Building Process- Nutrients, Heavy Metals, pH (acids and bases), Oils & Grease, Trash, Debris, Solids, Toxic Chemicals

Other Polluting Material/Chemical Used During Construction Process- DESCRIBE HERE

▪ Location and contents of spill kit will be printed on Site Sign. Spill kit on-site will be kept with equipment necessary for spill clean-up. Equipment and materials include, but are not limited to: brooms, dust pans, mops, rags, gloves, goggles, kitty litter, sawdust, and trash containers.

▪ Missouri, state law will be followed. It requires the responsible party to report releases greater than 50 gallons to the Missouri Department of Natural Resources at the earliest practical moment after discovery. If the release is from an underground storage tank, or UST, or piping, the reportable quantity is 25 gallons or more. Reports are also required for above ground storage tanks, or AST, that have released 50 gallons or greater. Further, federal law requires the responsible party to report any release of oil if the oil reaches or threatens any waterway. Any such spills or petroleum or other chemicals are to be reported as soon as possible to the Missouri Department of Natural Resources. Call the Southwest Regional Office at (417)

891-4300 or the Department’s 24-hour Environmental Emergency Response number at (573) 634-2436

▪ Hazardous wastes shall comply with Missouri Hazardous Waste Laws and Regulations.