5-Attachment 3-Ks SWPPP 220296N.pdf

411 N. Webb Rd.

Wichita, KS 67206

316.684.9600

STORM WATER POLLUTION

PREVENTION PLAN

Courtyards at Jacobs Farm Second Addition

Wichita, Kansas

PROJECT NUMBER: 2201010296

DATE: June 2026

Table of Contents

SECTION 1 - PERMIT

1.1 Notice of Intent (NOI) & Authorization

1.2 Agency Coordination

1.3 Stormwater Pollution Prevention Plan

SECTION 2 - MAPS & PLANS

2.1 Aerial Exhibit

2.2 USGS Quadrangle Exhibit

2.3 NRCS Soil Survey Exhibit

2.4 Erosion Control Plan

2.5 Erosion Control Details

SECTION 3 - CERTIFICATIONS & INSPECTION FORMS

3.1 Owner’s Certification and Delegation

3.2 Contractor’s Certification and Delegation

3.3 Sub-Contractor’s Certification Form

3.4 Inspection Form

3.5 Individual Lot Certification

SECTION 4 - PROJECT TRANSFER OR COMPLETION

4.1 Permit Transfer Request

4.2 Final Stabilization Checklist

4.3 Notice of Termination

SECTION 5 - PERMIT GUIDELINES

5.1 Kansas General Permit

https://mkeceng-my.sharepoint.com/personal/lschmidt_mkec_com/Documents/Documents/Ks SWPPP_220296N.docx

SECTION 1 - PERMIT

https://mkeceng-my.sharepoint.com/personal/lschmidt_mkec_com/Documents/Documents/Ks SWPPP_220296N.docx

1.1 Notice of Intent (NOI) & Authorization

This section contains the official Authorization to Discharge issued by the Kansas Department of Health and Environment (KDHE) via the Kansas Environmental Information Management System (KEIMS) portal.

Coverage under this permit is not automatic and was granted only after KDHE review of the submitted Notice of Intent (NOI) and supporting Stormwater Pollution Prevention Plan.

Note: This project operates under the Kansas General Permit S-MCST-2208-1. Permit coverage must be maintained annually until a Notice of Termination (NOT) is accepted by KDHE.

Effective: August 1, 2022 Notice of Intent (NOI) for Discharge of Stormwater Runoff from Construction Activites Page 1 of 4

NOTICE OF INTENT (NOI)

For Authorization to Discharge Stormwater Runoff from Construction Activities In accordance with the Kansas Water Pollution Control General Permit Under the National Pollutant Discharge Elimination System (NPDES)

Submission of this Notice of Intent constitutes notice that the party identified in Section I of this form requests authorization for coverage under the Kansas Water Pollution Control general permit, or KDHE issued successor permits, issued for stormwater runoff from construction activities in the State of Kansas. Becoming a permittee obligates the discharger to comply with the terms and conditions of the general permit. A complete request for Authorization for coverage under the general permit must be submitted or the request will not be processed. KDHE will notify owners or operators whose Notice of Intent (NOI) and supporting documentation for Authorization of stormwater runoff associated with construction activities are incomplete, deficient, or denied.

I. OWNER OR OPERATOR ADDRESS, BILLING, CONTACT & RECORDS LOCATION INFORMATION

Owner/Operator Scott Lehner Mailing Address: 443 N Maize Road Company Name: Perfection Signature Properties, LLC City, State Zip: Wichita, KS 67212 Phone: (316) 729-1900 Email: scott@perfectionbuilders.com

Contact Name: Kara Anderson Mailing Address: 411 N Webb Road Company Name: MKEC Engineering, Inc. City, State Zip: Wichita, KS 67206 Phone: (316) 684-9600 E-mail: kanderson@mkec.com

PERMIT FEE BILLING INFORMATION

Billing Contact: Scott Lehner Billing Address: 443 N Maize Road Wichita, KS 67212

Phone: (316) 729-1900 E-mail: scott@perfectionbuilders.com

Address where records will be kept (if not on-site):

Records Address: 443 N Maize Road Wichita, KS 67212

II. SITE INFORMATION

Project Name: Courtyards at Jacobs Farm Second Addition Street Address: 647 N 135th St W

Wichita, KS 67235 County: Sedgwick

Legal Site Description:

Qtr: Qtr: Qtr: Section: 14 Township: 27S Range: 02W

Decimal Degrees Latitude: 37.698333 Decimal Degrees Longitude: -97.503056

AUTHORIZED:Submission Received: 5/8/2026 Submission Number:

HQM-BF4R-VKGCG YES X NO

Reviewer: Is Authorization Conditional

YES NO X

(if yes, see Section V for conditions)

Larry Hook Are there any Considerations

YES NO X

(if yes, see Section V for considerationsAuthorized By:

Secretary, Kansas Department of Health and Environment KS Permit No.: S-AR94-2068

Issued: June 04,2026 Federal Permit No.: KSR124185

KEIMS Watermark KSR124185 v1.0

Approved Issued On:06/04/2026

Expires On:07/31/2027

Project Name: Courtyards at Jacobs Farm Second Addition Notice of Intent (NOI)

Effective: August 1, 2022 Notice of Intent (NOI) for Discharge of Stormwater Runoff from Construction Activites Page 2 of 4

B. Existing Conditions/Uses

1) Is any part of the project located on Indian Country Land?

No

2) If stormwater runoff drains to or through a Municipal Separate Storm sewer System (MS4): MS4 Name:

City of Wichita

3) Name of the first receiving water, stream, or lake Unnamed Tributary, River Basin AR - LOWER

ARKANSAS

4) Are contaminated soils present on the site or is there groundwater contamination located within the site boundary?

No

5) Are there any contaminated soils that will be disturbed or any contaminated groundwater that will be pumped by the proposed construction activity?

No

6) Are there any surface water intakes for public drinking water supplies located within ½ mile of the site discharge points?

No

7) Are there any known historical or archeological sites present within the site boundary or any historic structures located within 1000 feet of the project site?

No

Note: Include documentation of project-specific coordination with the Kansas Historical Society in making this determination

8) Is any threatened or endangered species habitat located within the site boundary or in the receiving water body?

No

Note: Include documentation of project-specific coordination with the Kansas Department of Wildlife, Parks & Tourism in making this determination.

9) Will the project impact the line or grade of a stream or does it include dredge or fill of a potential jurisdictional water body or wetlands?

No

10) Are any Critical Water Quality Management Areas, Special Aquatic Life Use Waters, or Outstanding National Resource Waters located within ½ mile of the facility boundary?

No

C. Project Description

1) Project Description:

Residential development with public infrastructure.

2) Does this NOI include all proposed soil disturbing activities associated with the entire common plan of development? No

Explain what development areas of the site are not included in this NOI and provide contact information, if available, for the party or parties that own or have operational control of these areas:

Construction is also taking place within the development. These areas are served by a separate NOI/SWPPP.

3) Anticipated project Start Date: June 1, 2026 and Completion Date: December 31, 2027

4) Estimated total area to be disturbed: 97.00 Acres

5) Total area of the site: 153.00 Acres

6) Do you plan to disturb ten or more acres that are within a common drainage area? Yes

Will a sedimentation basin be installed in that drainage area? Yes KEIMS Watermark

KSR124185 v1.0 Approved

Project Name: Courtyards at Jacobs Farm Second Addition Notice of Intent (NOI)

Effective: August 1, 2022 Notice of Intent (NOI) for Discharge of Stormwater Runoff from Construction Activites Page 3 of 4

(Attach design calculations for each sedimentation basin.) If a sediment basin is not feasible, on a separate sheet describe similarly effective erosion and sediment control measures to be implemented in lieu of a sedimentation basin.

D. Maps

Include an area map showing the outline of the construction site and the topographic features of the area at least one mile beyond the project site.

E. Erosion Control Plan and Best Management Practices

1) Provide a summary of the sequence of major soil disturbing activities including installation of the corresponding stormwater management and pollution control features.

1) Construct a temporary construction entrance/exit.

2) Install silt fence and other BMPs around the perimeter.

3) Perform Grading.

4) Water disturbed areas frequently to minimize dust.

5) Stabilization of disturbed areas where construction activity has ceased and “will not resume” for more than 14 days.

Stabilization activities must be completed within 14 days after ceasing of construction activity.

6) Install BMPs at the locations of all grate inlets, curb inlets, and at the ends of all exposed storm sewer pipes

7) Carry out final grading and gravel and/or asphalt placement

8) Remove BMPs only after all paving is complete and exposed surfaces are stabilized. Exposed surfaces are stabilized when 75% vegetative cover has been established

9) Remove temporary construction entrances/exits.

2) Provide one or more site plans covering the anticipated soil disturbing activities showing the limits of disturbance, the existing and proposed elevation contours, the types and locations of erosion/sediment control measures and stormwater management/pollution control features during each phase of construction and the locations where stormwater runoff leaves the construction site.

3) Provide a description of the best management practices to be utilized to control erosion and the discharge of sediment and other pollutants in stormwater runoff throughout construction and the design calculations for each sediment basin including total drainage area and storage capacity below the elevation of the mass volume flow outlet device.

See attached sheet with the calculations.

4) Provide the name and License or Certification Number of the engineer, geologist, architect, landscape architect, or Certified Professional in Erosion and Sediment Control (CPESC) under which the construction stormwater pollution prevention plan has been developed.

Kara Anderson 18596 Engineer Name License or Certification Number Profession or Field

III. ANNUAL FEES

The first year of the annual permit fee specified in K.A.R 28-16-56 et seq. as amended is currently $60.00 and can be paid through the KEIMS system at time of submittal. The fee must be paid before this NOI will be processed. An invoice for the annual permit fee will be sent to the contact person requesting a permit until such time as the permittee submits a Notice of Termination (NOT).

Failure to pay the annual fee timely may result in termination of the construction stormwater discharge Authorization.

IV. OWNER OR OPERATOR CERTIFICATIONS

I, the undersigned, certify that a Stormwater Pollution Prevention Plan (SWP2 Plan) will be or has been developed for the construction site described in this NOI and supporting documentation. I further certify that the plan will be implemented at the time construction begins, and, as required by the NPDES general permit for Stormwater Runoff from Construction Activity, will revise the SWP2 plan if necessary.

KEIMS Watermark KSR124185 v1.0

Approved

Project Name: Courtyards at Jacobs Farm Second Addition Notice of Intent (NOI)

Effective: August 1, 2022 Notice of Intent (NOI) for Discharge of Stormwater Runoff from Construction Activites Page 4 of 4

I understand that continued coverage under the NPDES general permit for Stormwater Runoff from Construction Activities is contingent upon maintaining eligibility as provided for in the requirements and conditions of the general permit, and paying the annual fee.

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 gather and evaluate 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.

Scott Lehner 5/8/2026 3:48:09 PM Signature (owner or operator) Date

Official Title

V. CONDITIONS AND/OR CONSIDERATIONS OF APPROVAL

Conditions of Authorization - For Official Use Only:

When indicated, Conditions of Authorization are as follows:

NONE

Notes on Consideration – For Official Use Only:

NONE

KEIMS Watermark KSR124185 v1.0

Approved

1.2 Agency Coordination

Agency databases and resources were reviewed to identify potential environmental constraints within or near the project area.

• Kansas Department of Wildlife and Parks (KDWP) – Ecological Services o https://ksoutdoors.com/

• Kansas State Historical Society (KSHS) - State Historic Preservation Office (SHPO) o https://www.kshs.org/shpo https://ksoutdoors.com/ https://www.kshs.org/shpo

Kansas Department of Wildlife and Parks Ecological Review Report

Contact Information

Company/Organization: MKEC Engineering, Inc.

Submitted By: Lesley Schmidt

Phone: 3166849600

Email: lschmidt@mkec.com

Mailing Address: 411 N Webb Road Wichita, KS 67206

The following project information has been submitted by Lesley Schmidt. All project locations are assumed to be precise and accurate for the purpose of this Ecological Review. The provider of the project data entry is solely responsible for the project location and thus the correctness/accuracy of the Kansas Department of Wildlife and Parks (KDWP) Ecological Review Report content. If the project location(s) or scope of work changes, the project sponsor must resubmit the project (with updated information) for further review.

Project Information

Automated Determination: Further Review by KDWP Required

Page 1 of 8 5/28/2026 9:39 am

Report Generation Date: 05/28/2026

Project Sponsor: Perfection Signature Properties, LLC - Scott Lehner

Project Title: Courtyards at Jacobs Farm Second Addition

KDWP Tracking Number: ERT20260578

Project Size (acres): 95.33

County(ies): Sedgwick

HUC 8 Watershed(s): MIDDLE ARKANSAS-SLATE. KANSAS.

Section-Township-Range: S13-T27S-R2W, S14-T27S-R2W

Latitude/Longitude (Project Centroid): 37.69823/-97.50301

Project Details Accuracy Certified: Yes

Project Activities: Detention basin, bioswale, rain garden, other bio-retention area construction/maintenance Drinking water supply/treatment/transmission facilities construction/maintenance (includes groundwater wells) Floodplain fill or raise flood elevation House and apartment construction/improvements Low water crossings, permanent/temporary culverts, etc. construction/improvements Pre-development site clearing, grubbing, grading Road construction on new alignment-residential, access, local (non-through roads) Sidewalks, paths, trails, etc.

construction/repair Stormwater control and disposal (storm sewers, sub-grade drainage, outfall structures) Wastewater collection - construction, extension, or improvements of existing commercial/residential collection systems (includes residential septic or lagoon systems)

Project Description

Legal Description: Section 14, Township 27 South, Range 2 West Project Description: Residential

Page 2 of 8 5/28/2026 9:39 am development with public infrastructure. Timeframe: June 2026 - December 2027 Disturbance Area: 97.0

Ecological Review Findings: Further Review by KDWP Required

Preliminary review of the project information provided indicates further review is required by KDWP staff to evaluate and assess potential impacts to critical wildlife habitats, current state-listed threatened or endangered species and species in need of conservation, as well as KDWP-managed areas for which this agency has administrative authority. If proposed project type activities have triggered the need for additional review, KDWP staff will determine if submitted information is sufficient to complete our comprehensive review of potential project impacts. Issuance of an Action Permit may be required by this Department prior to the start of construction. However, receipt of this report does not confirm that an Action Permit will be required. Within 30 days, you will be contacted by KDWP. This correspondence will either be a request for more information or provide this agency’s determination regarding the necessity of Action Permit issuance. This report should not be construed as project clearance or completed coordination with KDWP. We ask that all other necessary permits be held in abeyance until conditions necessary to protect threatened and endangered species have been determined and established.

Conflict Details

Analysis Layer Conflicts

Your project may intersect “Designated Critical Habitats”, and will require further review by KDWP Staff

Page 3 of 8 5/28/2026 9:39 am

Page 4 of 8 5/28/2026 9:39 am

Page 5 of 8 5/28/2026 9:39 am

Page 6 of 8 5/28/2026 9:39 am

KDWP Statutory Authority

Legal authority for the conservation and recovery of state-listed wildlife species is delegated to KDWP through K.S.A 32-957 through 32-963, 32-1009 through 32-1012, 32-1033, and K.S.A. 32-960a and 32-960b cited as the Kansas Nongame and Endangered Species Conservation Act. These statutory directives are implemented through K.A.R. 115-15-1 through 115-15-4. Additional review authorities are granted to KDWP through K.S.A 82a-825 and 82a-326 known as the Water Projects Environmental Coordination Act.

Agency Contact Information

General Inquiries: Kansas Department of Wildlife and Parks Operations Office 512 SE 25th Ave.

Pratt, KS 67124 KDWP.kdwpinfo@ks.gov 620-672-5911

Ecological Review Inquiries: Kansas Department of Wildlife and Parks

Ecological Services Division 512 SE 25th Ave.

Pratt, KS 67124 KDWP.ess@ks.gov 620-672-0798

Page 7 of 8 5/28/2026 9:39 am mailto:KDWPT.ess@ks.gov

Powered by TCPDF (www.tcpdf.org)

Page 8 of 8 5/28/2026 9:39 am http://www.tcpdf.org

Lesley Schmidt

From: Zackary Cordes [KDWP] <Zackary.Cordes@KS.GOV>

Sent: Friday, May 22, 2026 9:27 AM

To: Lesley Schmidt

Subject: KDWP Completed Review ERT20260578: Courtyards at Jacobs Farm Second Addition, SG Co.

CAUTION: This email originated from outside of MKEC Engineering, Inc. Do not click links or open attachments unless you recognize the sender and know the content is safe.

Lesley Schmidt, Thank you for submitting information to the KDWP Ecological Review Tool website regarding the proposed

Courtyards at Jacobs Farm Second Addition residential development in Sedgwick County, Kansas (S14-T27S-

R2W). The site's Automated Determination for the project indicates secondary review by KDWP staff is necessary. We have reviewed the project for potential impacts to critical wildlife habitats, current state-listed threatened or endangered species and species in need of conservation, as well as Kansas Department of Wildlife and Parks managed areas for which this agency has administrative authority.

We note the project was flagged by the Ecological Review Tool for potential impacts to Designated Critical Habitat for the Plains Spotted Skunk (Spilogale interrupta). Based on the limited areal extent of disturbance, we will not require

Action Permit issuance prior to project commencement. However, we recommend that vegetation and soil disturbance is minimized to the greatest extent practicable and that all disturbed soils are replanted with native grasses and forbs. Additionally, we recommend that trees cleared during construction are densely piled in adjacent woodlands to serve as potential escape cover for the Plains Spotted Skunk. Finally, we provide the following comments and general recommendations. When applicable:

• KDWP recommends borrow/waste sites, materials stockpiles, staging, and laydown areas be sited in previously disturbed habitats (e.g., cropland, non-native pasture).

• Avoid impacts to streams and rivers, adjacent riparian zones, wetlands and springs as well as native prairie and woodland areas. Use bridges to span streams crossed by access roads.

• Avoid or minimize development in floodplain areas due to probable flooding, potential destruction or damage to development, and the impacts to natural hydrologic interaction of the stream with its floodplain.

• Avoid open trenching of wetted stream channels. Minimize all bank or instream activity, particularly during general fish spawning season (March 1 – Aug. 31).

• Stream crossing, bridge, and dam designs should allow for aquatic organism passage. KDWP is willing to provide technical assistance on incorporating aquatic organism passage.

• KDWP advocates for the use of span or bottomless type bridge/culvert designs (e.g., conservation culverts).

Consult the Kansas Fish Passage Guide for design considerations:

https://ksoutdoors.com/content/download/55966/608381/file/FishPassageGuide.pdf.

• Culvert bottoms should be buried a minimum of 12 inches below the existing streambed grade to prevent perching and allow aquatic organism passage. This allows streambed substrate to deposit in the culvert providing a bottom similar to the natural channel. Expedite this process by using the excavated substrate to backfill the culvert once placed.

• Minimum culvert width should meet or exceed bankfull width of the stream. Match culvert slope with the existing stream channel profile.

• If additional water conveyance is required, install additional culverts at floodplain elevation.

• Detention basins and bioswales should not impound any streams. Ephemeral and Intermittent streams are important breeding and nursery habitats for aquatic organisms. Off-channel basins or dry dams can provide the necessary detention functions without impeding aquatic organism movement in stream channels.

• Depth of basins/bioswales should allow for seasonal drying which prevents the establishment of fish.

Predatory fish reduce the suitability of the basin for breeding amphibians by preying on larvae.

• Plant a diverse mixture of native wetland species to maximize water quality functions and habitat quality for wildlife.

• When feasible, strictly follow existing road rights-of-way with new linear infrastructure projects.

• Avoid or minimize the removal of native upland or riparian hardwood timber and vegetation when repairing, moving, or constructing underground utility lines.

• If a stream or dry water conveyance is open trenched, then restore the streambank and streambed to its original morphology and function (e.g. avoid channel widening and streambank degradation).

• When feasible, design stormwater and wastewater collection systems to use a gravity flow to reduce the need for aboveground pump stations.

• Design outfall structures to mimic natural systems to the extent possible. Incorporate gentle slopes and native vegetation to reduce erosion from outfalls. Consider constructing bioswales, detention basins, and/or constructed wetlands below outfall locations to filter pollutants and create habitat for wildlife.

• Prevent the introduction of aquatic or terrestrial non-native, invasive species during construction. Clean, Drain, and Dry all equipment of water, mud, plant material, and other debris prior to beginning construction. Equipment should be cleaned with pressurized, hot water (120F) or dried for 5 days. Non-native, invasive species in the riparian area should be controlled during construction until native vegetation is established.

• Avoid fuel spills or other contaminant releases. Have operational contingency plans (such as a

Spill Prevention, Control, and Countermeasure plan), which comply with all applicable guidance from Kansas Department of Health and Environment in place to respond to leaks and spills. For more information about SPCC plans, see:

https://www.epa.gov/sites/production/files/documents/spccbluebroch.pdf.

• Erosion control blankets can adversely impact reptiles and amphibians by ensnaring and entrapping individuals moving over/through the mesh. We recommend using compost, mulch, or biodegradable/natural fiber blankets (coconut/coir fiber is common) as potential alternatives to plastic erosion control blankets. Such alternatives can also promote the growth of vegetation further improving slope stability. Though less preferable than the aforementioned options, looseweave mesh is also acceptable, specifically types with weaves that are not welded at the intersections that would allow the opening to expand if an animal attempts to pass through.

• Incorporate principles of low impact development (LID), such as permeable asphalt pavement, porous concrete, swales, bioretention, or raingardens. More info on LID:

https://www.epa.gov/nps/urban-runoff-low-impact-development.

• Implement and maintain standard erosion control Best Management Practices during all aspects of construction by installing sediment barriers (wattles, filter logs, rock check ditches, mulching, or any combination of these) across the entire construction area to prevent sediment and spoil from entering aquatic systems. Barriers should be maintained at high functioning capacity until construction is completed and vegetation is established. For more information on erosion BMPs go to: https://www.kdhe.ks.gov/757/Construction-Stormwater-Program.

• Minimize light pollution by using low-intensity, shielded lighting. Consider using warmer color temperatures (below 3000K) to reduce skyglow.

• Restore disturbed soils with native grasses, forbs, shrubs, and/or trees as appropriate for the ecological site. KDWP Ecological Services Division staff can provide technical assistance for site restoration.

Results of our review indicate there will be no significant impacts to critical wildlife habitats; therefore, no special mitigation measures are recommended. The project will not impact any public recreational areas, nor could we document any potential impacts to currently-listed threatened or endangered species or species in need of conservation. No Department of Wildlife and Parks permits or special authorizations will be needed if construction is started within one year, and no design changes are made in the project plans. Permits may still be required from other agencies, and we recommend consultation with all other applicable regulatory authorities.

Since the Department’s recreational land obligations and the State’s species listings periodically change, if construction has not started within one year of this date, or if design changes are made in the project plans, the project sponsor must contact this office to verify continued applicability of this assessment report. For our purposes, we consider construction started when advertisements for bids are distributed.

Please consider this email our official review for this project. Thank you for the opportunity to provide these comments and recommendations. Please let me know if you have any questions or concerns about the preceding information.

Please submit all future projects through the KDWP Ecological Review Tool (ERT) that can be accessed at ert.ksoutdoors.gov to streamline the review process for all parties. If you have any questions or need assistance with the

ERT please contact us at kdwp.ess@ks.gov.

Thank you.

Zack Cordes | Ecologist Kansas Department of Wildlife and Parks 512 SE 25th Ave. | Pratt, KS 67124 Office 620-672-0822 Cell 785-410-9652 www.ksoutdoors.gov

CONFIDENTIALITY AND PRIVILEGE NOTICE

This email message, including attachments, if any, is intended for the person or entity to which it is addressed and may contain confidential and/or privileged information.

Any unauthorized review, use or disclosure is prohibited. If you are not the intended recipient, please contact the sender and destroy the original message, including all copies.

'()*+,-./-0-12

���3�� 456+(.7+89+:

'()*+,-.;5<)

���3�� �=�>�

?)1(-@0(62.0-.A0,)B2.C0(D./+,)56.E669-9)5

F�����$ ���

7+296+5-90G.6+8+G)HD+5-.:9-I.H1BG9,.95<(02-(1,-1(+J

���3�� �K�$�

L+:.?)52-(1,-9)5

���3�� �M

NOPQRPQSO

T+220U+2

K� �� F� �

NPV.E+(90G.WXI9B9-.P.?ACNJH6<.YZ')(-0GZ[+-C9G+Z\NOVS] RZVQZNQNO.VQ̂_̀ R̂a.'T

NPN.4/[/.b106.WXI9B9-.P.?ACNJH6<.YZ')(-0GZ[+-C9G+Z\NOV̀] RZVQZNQNO.VQ̂_̀ _̂N.'T

'()*+,-.c),1D+5-2 E66.c),1D+5-

YZ')(-0GZ'()*+,-c),1D+5-2Z\NOVO] d e�$���&

ghijhklmnopoqnrs tuvwnxyuz{|yw}n~n�y�uyun��y�vn��u�|w��nrwvuvw�y��|�n�����v z���uphhwv��v���y�uyuz�u�|w���|�hr|w�y�hrw|�v��hqklil ihi

./01234560378294:

<=<>?=@?A>4A@BC=B=AD

��EF��

<>?=@?=G>5?53HIJKLMJ-*5MK51MNHO*5'MJP5:,NH)-5Q--(K(H)

R�S�

<>?=@?=G>5?53HIJKLMJ-*5MK51MNHO*5'MJP5:,NH)-5Q--(K(H)

T,*U,L5:N+P(-K

4+,5VM)*M*5:KMK,5W(*KHJ(N5.J,*,JXMK(H)50Y(N,5+M*5J,X(,Z,-5K+,5PMK,J(MU*5J,N,(X,-5Q[J(U5A=\5<=<>5()5MNNHJ-M)N,5Z(K+

K+,5J,]I(J,P,)K*5Ĥ5M59HK(N,5Ĥ5_)K,)K̀54+,5:W.05+M*5-,K,JP(),-5K+MK5K+,5[JH[H*,-5[JHa,NK5Z(UU5)HK5M-X,J*,UL5MY,NK

M)L59MK(H)MU5/,b(*K,J?U(*K,-5HJ59MK(H)MU5/,b(*K,J?,U(b(OU,5[JH[,JK(,*̀54+(*5NH)NUI-,*5K+,5:W.0c*5JHU,5()5K+(*5J,X(,Z̀

4+MK5*M(-\5Z,5PI*K5,P[+M*(d,5K+MK5()5K+,5NM*,5Ĥ5M5[JHa,NK5*IN+5M*5K+(*5K+MK5J,]I(J,*5H)UL5M)590_\5HIJ5Mb,)NL5+M*5)H

U,bMU5MIK+HJ(KL5KH5NHP[,U5LHIJ5NU(,)K5KH5NH)*(-,J5,Y,NK*5H)5U(*K,-5HJ5,U(b(OU,5[JH[,JK(,*̀5_̂\5+HZ,X,J\5M)L5̂,-,JMU

Î)-*5MJ,5KH5O,5I*,-5HJ5(̂5M)L5̂,-,JMU5[,JP(K*5P(b+K5IUK(PMK,UL5O,5J,]I(J,-\5K+,5M[[U(NM)K5Z(UU5O,5J,]I(J,-5KH5NHP[UL

Z(K+5C>53'/5e==̀

4+M)f5LHI5̂HJ5b(X()b5I*5K+,5H[[HJKI)(KL5KH5NHPP,)K5H)5K+(*5[JH[H*MÙ5.U,M*,5J,̂,J5KH5K+,5VM)*M*5:KMK,5/,X(,Z5g

3HP[U(M)N,5)IPO,J5hV:/g3ij5U(*K,-5MOHX,5H)5M)L5̂IKIJ,5NHJJ,*[H)-,)N,̀5.U,M*,5*IOP(K5M)L5NHPP,)K*5HJ

]I,*K(H)*5J,bMJ-()b5K+(*5J,X(,Z5KH5P,5MK5Gek?<G<?e>eA\5,lK̀5<Am5HJ5JHO,JK̀,U-,Jnf*̀bHX

0)5O,+MÛ5ĤB

VMKJ()M5/()bU,J

6,[IKL5:KMK,5W(*KHJ(N5.J,*,JXMK(H)50Y(N,J

VM)*M*5W(*KHJ(NMU5:HN(,KL

o�$���&

qrstrutvwxyzuw{| |}~~��}w�w���~�~w����}w��~�����w��}~}�������w�����}

����~yrr�}��}�����~�~��~��������r������r|}~~��}ru�uu� srs

1.3 Stormwater Pollution Prevention Plan

Stormwater Pollution Prevention Plan

Wichita, Kansas Prepared: June 2026

Estimated Project Start Date: June 2026 Estimated Project Completion Date: December 2027

OWNER

COMPANY: Perfection Signature Properties, LLC

OWNER: Scott Lehner

TITLE: Chief Executive Manager / Member

ADDRESS: 443 N Maize Road, Wichita, Kansas, 67212

PHONE: (316)-729-1900

EMAIL: scott@perfectionbuilders.com

OPERATOR

COMPANY:

CONTACT:

TITLE:

ADDRESS:

PHONE:

EMAIL:

SWPPP PREPARED BY

COMPANY: MKEC Engineering, Inc.

CONTACT: Kara Anderson, P.E., CFM

ADDRESS: 411 N. Webb Rd., Wichita, Kansas 67206

PHONE: (316)-684-9600

EMAIL: kanderson@mkec.com

Project Information

Wichita, Kansas

LOCATION

ADDRESS: 647 N 135th St W, Wichita, Kansas, 67235

LOCATION: NW Corner of intersection of 135th St and 4th St

LATITUDE: 37° 41’ 54” North

LONGITUDE: 97° 30’ 11” West

SEC-TWP-RNG: Section 14, Township 27 South, Range 2 West

AREA

SITE AREA: 153.0

DISTURBED AREA: 97.0

PERMIT NUMBERS

KANSAS PERMIT: S-AR94-2068

FEDERAL PERMIT: KSR124185

RUNOFF COEFFICIENT

EXISTING: 0.35

PROPOSED: 0.48

RECEIVING WATERS

RECEIVING WATERS: Unnamed Tributary

RIVER BASIN: Lower Arkansas

PROJECT DURATION

ESTIMATED START DATE: June 2026

ESTIMATED COMPLETION DATE: December 2027

ESTIMATED DURATION: 18 MONTHS

Project Description The project is for residential development. Soil disturbing activities will include:

• Construction entrance

• Perimeter Controls

• Construction of sedimentation basin

• Clearing and grubbing

• Site grading

• Waterline installation

• Sanitary sewer installation

• Stormwater sewer installation

• Paving Construction

• Lot Grading

• Landscaping

• Planting

• Seeding

Sedimentation Basin Calculations

Sedimentation Basin Details Drainage Area #1 Disturbed Area: 103.6 acres draining to ponds

103.6 acres x 3,600 cubic feet per acre = 372,960 cubic feet 372,960 cubic feet x 1 acre / 43,560 square feet = 8.56 acre-feet

POND 3

Provided: Depth = 8 feet

Bottom 1348.00 = 30,705 square feet = 0.88 acres NP = 1356.00 = 88,783 sf = 2.04 acres (0.88 acres + 2.04 acres) / 2 = 1.46 acres x 8 ft = 11.68 acre-feet

POND 4

Provided: Depth = 8 feet

Bottom 1344.00 = 1,672 square feet = 0.04 acres NP 1352.00 = 14,963 square feet = 0.34 acres (0.04 acres + 0.34 acres) / 2 = 0.19 acres x 8 ft = 1.52 acre-feet

POND 5

Provided: Depth = 8 feet

Bottom 1339.00 = 5,206 square feet = 0.12 acres NP 1347.00 = 31,834 square feet = 0.73 acres (0.12 acres + 0.73 acres) / 2 = 0.43 acres x 8 ft = 3.44 acre-feet

Drainage Area #2 Disturbed Area: 47.10 acres draining to ponds

47.10 acres x 3,600 cubic feet per acre = 169,560 cubic feet 169,560 cubic feet x 1 acre / 43,560 square feet = 3.89 acre-feet

POND 1

Provided: Depth = 8 feet

Bottom 1339.00 = 2,154 square feet = 0.05 acres NP 1347.00 = 15,587 square feet = 0.36 acres (0.05 acres + 0.36 acres) / 2 = 0.21 acres x 8 ft = 1.64 acre-feet

POND 2

Provided: Depth = 8 feet

Bottom 1342.00 = 7,380 square feet = 0.17 acres NP 1350.00 = 26,203 square feet = 0.60 acres (0.17 acres + 0.60 acres) / 2 = 0.39 acres x 8 ft = 3.08 acre-feet

Sedimentation Basin Explanation The site is divided into multiple drainage areas, each routed to a designated sedimentation basin. Five sediment basins are provided to capture and treat runoff from disturbed areas before discharge. Each basin includes a controlled outlet structure to allow for proper dewatering and sediment settling.

Stormwater leaves the site at multiple locations, and erosion control measures will be used to prevent sediment from leaving the site.

Potential Sources of Pollution The following materials or substances may be present onsite during construction:

Acids

Cleaning solvents

Concrete

Concrete Additives

Concrete Washout

Detergents

Dust

Fertilizer

Non-Industrial Waste

Paints

Paint Solvents

Pesticides

Petroleum Products

Soil

Soil stabilization additives

Temporary Sewage Container

Trash/Litter

Vehicle Tracking of Sediments

Erosion and Sediment Controls

Stabilization Practices Stabilization practices for this site include:

• Land clearing activities shall be done only in areas where earthwork will be performed and shall progress, as earthwork is needed.

• Frequent watering of disturbed areas shall occur frequently to minimize dust during construction.

• Interim Best Management Practices (BMPs) shall be installed to reduce the amount of sediment leaving the site.

• Stabilization of disturbed areas must, at a minimum, be initiated immediately whenever any clearing, grading, excavating, or other soil disturbing activities have permanently ceased on any portion of the site, or temporarily cease on any portion of the site and will not resume for a period exceeding 14 calendar days. The disturbed areas shall be protected from erosion by maintaining the erosion control stabilization practices, or stabilizing the area with mulch or other similarly effective soil stabilizing BMPs. Initial stabilization activities must be completed within 14 days. If disturbed areas have a consistent snow cover or exhibit frozen soil conditions they are considered to be stabilized. Normal stabilization measures are required as soon as the area thaws.

Note: Local municipal ordinances may require stabilization to be initiated/completed in 7 days.

Always defer to the stricter requirement.

https://mkeceng-my.sharepoint.com/personal/lschmidt_mkec_com/Documents/Documents/Ks SWPPP_220296N.docx

Structural Practices Structural practices for this site include but are not limited to the following range of BMPs. Construction details of BMPs are included on the Erosion Control Details:

• Inlet protection and outlet protection using silt fences, sandbags, etc.

• Perimeter protection using silt fences

• Sedimentation basin

• Stabilized construction exit points and sufficient staging area for construction materials.

• Containment of the on-site sanitation facility to prevent uncontrolled waste discharges during pumping and cleaning activities. The sanitation facility shall be placed a reasonable distance (at least 50 feet) from all inlets and drainage ways.

• Silt Fences will be installed around the downstream side of the perimeter of all disturbed areas.

• Vegetated filter strips

• Other structural BMPs installed and maintained by the contractor, as warranted by site conditions.

Sequence of Major Activities The Contractor will be responsible for implementing the following erosion control and storm water management control structures. All structural practices shall be maintained through the course of the construction and shall be sequenced according to activities in the field. The Contractor may designate these tasks to certain subcontractors as he sees fit, but the ultimate responsibility for implementing these controls and ensuring their proper functioning remains with the Contractor. Refer to the erosion control plans in Section 2 of this SWPPP for details. The order of activities will be as follows and shall be documented on the Record of Stabilization and Construction Activities Form:

1) Construct a temporary construction entrance/exit.

2) Install silt fence and other BMPs around the perimeter.

3) Perform Grading.

4) Water disturbed areas frequently to minimize dust.

5) Stabilization of disturbed areas where construction activity has ceased and “will not resume” for more than 14 days. Stabilization activities must be completed within 14 days after ceasing of construction activity.

6) Install BMPs at the locations of all grate inlets, curb inlets, and at the ends of all exposed storm sewer pipes

7) Carry out final grading and gravel and/or asphalt placement

8) Remove BMPs only after all paving is complete and exposed surfaces are stabilized. Exposed surfaces are stabilized when 75% vegetative cover has been established

9) Remove temporary construction entrances/exits.

https://mkeceng-my.sharepoint.com/personal/lschmidt_mkec_com/Documents/Documents/Ks SWPPP_220296N.docx

Materials Management Practices

Management of Materials Management of materials and practices, outside of soil disturbing activities, shall be the responsibility of the Contractor. Such activities shall include, but not be limited to, the items shown below.

• Waste Disposal

All waste materials will be collected and stored in securely lidded metal dumpsters rented from local waste haulers. The dumpsters will meet all local and state solid waste management regulations. All waste and construction debris from the site will be deposited in the dumpsters. The dumpsters will be emptied on a periodic basis. No construction waste materials will be buried, dumped, or discharged onsite.

• Sanitary Waste

All sanitary waste will be collected from the portable units on a frequent, periodic basis by a licensed sanitary waste management contractor. These portable units shall be located a reasonable distance (at least 50 feet) from inlets and drainage ways.

• Concrete Waste from Concrete Trucks

All concrete wash water and excess concrete must be managed to prevent high-pH discharges.

o Containment: All wash water must be directed to a leak-proof container or a liner-protected pit designed to prevent infiltration into the ground or discharge into the storm sewer system.

o Prohibition: The discharge of concrete wash, rinse waters, or slurry to "Waters of the State" or the MS4 is strictly prohibited.

o Setbacks & Signage: Washout facilities must be located at least 50 feet away from storm drain inlets, open ditches, or waterbodies. Each location must be clearly identified with highly visible signage.

o Maintenance: Washout facilities must be cleaned out once they reach 75% capacity to prevent overspill.

• Hazardous Substances and Hazardous Waste

All hazardous waste materials will be disposed of in the manner specified by applicable local, state, and federal regulation and by the manufacturer. The contractor’s site personnel will be instructed in these practices and the Contractor’s Site Superintendent will be responsible for seeing that these practices are followed.

Good Housekeeping The following good housekeeping practices will be followed onsite during the construction project.

• An effort will be made to store only enough products required to do the job

• All materials stored onsite will be stored in a neat, orderly manner and, if possible, under a roof or other enclosure

• Products will be kept in their original containers with the original manufacture’s label in legible condition.

• Substances will not be mixed with one another unless recommended by the manufacturer.

• Manufacturer's recommendations for proper use and disposal will be followed.

https://mkeceng-my.sharepoint.com/personal/lschmidt_mkec_com/Documents/Documents/Ks SWPPP_220296N.docx

• The Contractor will be responsible for daily inspections to ensure proper use and disposal of materials.

• All of the product in a container will be used before the container is disposed of. All such containers will be triple-rinsed with water prior to disposal. The rinse water used in these containers will be disposed of in a manner in compliance with state and federal regulations and will not be allowed to mix with storm water discharges.

• If surplus product must be disposed of manufacturer or local/state/federal recommended methods for proper disposal will be followed.

• Any track out of sediment from the construction site onto streets will be removed daily.

Spill Prevention Practices In addition to the good housekeeping, the following practices will be followed for spill prevention and cleanup.

• Manufacturer's recommended methods for spill cleanup will be clearly posted and site personnel will be trained regarding these procedures and the location of the information and cleanup supplies.

o Post the KDHE Spill Line: 785-291-3333.

• Materials and equipment necessary for spill cleanup will be kept in the material storage area onsite in spill control and containment kit (containing, for example, absorbent such as cat litter or sawdust, acid neutralizing powder, brooms, dust pans, mops, rags, gloves, goggles, plastic and metal trash containers, etc.).

• All spills will be cleaned up immediately after discovery.

• The spill area will be kept well ventilated and personnel will wear appropriate protective clothing to prevent injury from contact with the hazardous substances.

Control of Allowable Non-Stormwater Discharges Certain types of discharges are allowable under the U.S. Environmental Protection Agency General Permit, and it is the intent of this SWPPP to allow such discharges. These types of discharges will be allowed under the conditions that no pollutants will be allowed to come in contact with the water prior to or after its discharge. The control measures, which have been outlined in this SWPPP, will be strictly followed to ensure that no contamination of these non-stormwater discharges takes place. The following allowable non-stormwater discharges that may occur from the job site include:

• Discharges from fire fighting activities

• Fire hydrant flushing

• Waters used to wash vehicles or control dust in order to minimize offsite sediment tracking

• Potable water sources including waterline flushing, irrigation drainage from watering vegetation, routine exterior building wash-down (without detergents present)

• Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred and detergents are not used

• Air conditioning condensate

• Springs

• Uncontaminated groundwater https://mkeceng-my.sharepoint.com/personal/lschmidt_mkec_com/Documents/Documents/Ks SWPPP_220296N.docx

• Uncontaminated groundwater dewatering is allowed, provided it is discharged through a sediment filter bag or a turbidity curtain to ensure no sediment-laden water reaches the MS4 or Waters of the State.

• Foundation or footing drains where flows are not contaminated with process materials such as solvents

• Spray water from dust control activities

Inspection and Recordkeeping Procedures

Maintenance/Inspection The following inspection and maintenance practices will be used to maintain erosion and sediment controls and stabilization measures to be performed by the Contractor.

• All control measures will be inspected at minimum of once every 14 days and within 24 hours following a 0.5 inch or greater rainfall event.

• All measures will be maintained in good working order; if repairs are found to be necessary, they shall be noted on the inspection report and initiated within 24 hours.

• Built up sediment will be removed from silt fence when it has reached one-third the height of the fence.

• Silt fences will be inspected for depth of sediment, tears, etc., to see if the fabric is securely attached to the fence posts, and to see that the fence posts are securely in the ground.

• The sediment basin, if present, will be inspected for depth of sediment, and built up sediment will be removed when it reaches 10 percent of the design capacity.

• Diversion dikes, if present, will be inspected and any breaches promptly repaired.

• Temporary and permanent seeding and all other stabilization measures will be inspected for bare spots, washouts, and healthy growth.

• A maintenance inspection report will be made after each inspection. Copies of the Inspection Report Forms to be completed by the inspector are included in this SWPPP under Section 3.

• Any modifications to the Erosion Control Plan shall be noted on the Erosion Control Plan (Section 2.4).

• All site inspections must be conducted by a Qualified Inspector. In accordance with Kansas state requirements, a "Qualified Inspector" is a person who has successfully completed a KDHE-recognized training program and holds a current certification such as:

o KDOT CIT (Certified Inspection and Testing) o CISEC (Certified Inspector of Sediment and Erosion Control) o CESSWI (Certified Erosion, Sediment and StormWater Inspector) or CPESC (Certified Professional in Erosion and Sediment Control)

The Qualified Inspector is responsible for conducting all routine and rain-event inspections, identifying necessary maintenance or repair activities, and accurately completing all required reports. A copy of the inspector’s current, valid certification must be maintained in Section 3 of this binder.

• Personnel selected for the inspection and maintenance responsibilities will receive training from the Contractor. Documentation of this personnel training will be kept in the Contractor’s SWPPP Folder.

https://mkeceng-my.sharepoint.com/personal/lschmidt_mkec_com/Documents/Documents/Ks SWPPP_220296N.docx

• Disturbed areas and materials storage areas that are exposed to precipitation will be inspected for evidence of or potential for pollutants entering storm water systems.

• Report to the U.S. Environmental Protection Agency and the local government within 24 hours any noncompliance with the SWPPP that will endanger public health or the environment.

Inspection and Maintenance Report Forms The SWPPP, Notice of Intent (NOI), and all Inspection/Maintenance Reports must be readily accessible on-site for the duration of construction.

• All records, including inspection forms and the SWPPP, must be maintained by the permittee for a period of three (3) years following the acceptance of the Notice of Termination (NOT).

• If electronic inspection software is utilized, a printed copy of the most recent 30 days of reports must be kept in the on-site binder. The full digital history must be made immediately available to governmental officials upon request via mobile device or tablet.

If an inspection identifies a Best Management Practice (BMP) that is missing, improperly installed, or significantly damaged (not functioning as intended), it shall be logged as a Corrective Action.

• Corrective action(s) must be initiated within 24 hours of discovery.

• Repairs or installations must be completed no later than 7 calendar days after discovery. If the 7-day deadline cannot be met, the SWPPP must be updated with a written justification for the delay.

Hazardous Material Spill Reports The Contractor shall provide copies of the completed forms and reports that are filed with regulatory Agencies if reportable quantities of hazardous materials are spilled.

https://mkeceng-my.sharepoint.com/personal/lschmidt_mkec_com/Documents/Documents/Ks SWPPP_220296N.docx

Construction/Implementation Checklist

1. Maintain Records of Construction Activities, including:

Dates when major grading activities occur

Dates when construction activities temporarily cease on a portion of the site

Dates when construction activities permanently cease on a portion of the site

Dates when stabilization measures are initiated on the site

Dates of rainfall and the amount of rainfall

Dates and descriptions of the character and amount of any spills of hazardous materials

Records of reports filed with regulatory agencies if a “hazardous condition” has been identified, including a release of a reportable quantity of a hazardous substance, that is related to the Project or located within the Project area.

2. Prepare Inspection Reports summarizing:

Name of inspector

Qualifications of inspector

Measures/areas inspected

Observed conditions

Changes necessary to the SWPPP

3. Report “Hazardous Conditions” (if any occur):

Notify National Response Center (1-800-424-8802) immediately

Notify the Kansas Department of Health and Environment

Notify permitting authority in writing within 7 days (and verbally within 24 hours)

Modify the pollution plan to include o The rate of release o Circumstances leading to the release o Steps taken to prevent reoccurrence of the release

4. Modify Pollution Prevention Plan as necessary to:

Comply with the minimum permit requirements when notified by U.S. Environmental Protection Agency, Kansas Department of Health and Environment and the City that the plan does not comply

Address a change in design construction operation, or maintenance, which has an effect on the potential for discharge of pollutants

Prevent reoccurrence of reportable quantity releases of a hazardous material or oil https://mkeceng-my.sharepoint.com/personal/lschmidt_mkec_com/Documents/Documents/Ks SWPPP_220296N.docx

SECTION 2 - MAPS & PLANS

https://mkeceng-my.sharepoint.com/personal/lschmidt_mkec_com/Documents/Documents/Ks SWPPP_220296N.docx

2.1 Aerial Exhibit

AKSARBEN

WINDBREAK

BARN OWL

BA

RN

WO

OD

SILO

FARMOUSE

JENNIE

CENTRAL

SIE

NA

LOST CREEK

TAYLOR

KE

NT

UC

KY

BIRCH

TH

OR

OU

GH

BR

ED

HIC

KO

RY

TH

FRANKLIN

4TH

FARMHOUSE

Source: Esri, Vantor, Earthstar Geographics, and the GIS User Community

Courtyards at Jacobs Farm 2nd & 3rd Addition

SEC: 14

TWP: T27S

RNG: R2W

1:48001 "=400 ' /

Wichita, KS 316.684.9600. 1 OF 1

COURTYARDS AT JACOBS FARM

Pa th:

\\I

CT

NA

S1

3\V ol7

\P ro jec ts\

\22

_P er fec tio n_

Ja co bs

5t h a nd C en tra l\0 5 C ivi l\G

IS

\A…