The URL can be used to link to this page

Home My WebLink About2023-02-28 WC Recorded Document 4399682 VariancesReceipt:# 616725 VAR $46.00 Return to: E - SIMPLIFILE 4844 North 300 West Suite 202 Provo UT 84604 4399682 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII Certified Filed and/or recorded on: 2/28/2023 12 17 PM Office of the County Recorder Washington County, Minnesota Amy Stenftenagel, County Recorder STATE OF MINNESOTA ) COUNTY OF WASHINGTON CITY OF OAK PARD HEIGHTS ) I, the undersigned being duly qualified and acting as City Administrator for the City of Oak Park Heights, Minnesota ISO HEREBY CERTIFY that I have compared the attached document: Subdivision Variance, Lot Size Variance, & Loi Width Variance For Cates Fine Homes, LLC/SETAC Properties, LLC At 15222 & I5.xxx 62nd St. N. with the original thereof on file at the offices of the City of Oak Park Heights, and that the same is a full, true, and complete copy of said document within the files of the City of Oak Park Heights. WITNESS my hand and the seal of the City of Oak Park Hei January, 2023. 'Erohnson C9 Administrator this 27th day of CITY OF OAK PARK HEIGHTS SUBDIVISION VARIANCE, LOT SIZE VARIANCE, AND LOT WIDTH VARIANCE FOR CATES FINE HOMES LLC/SETAC PROPERTIES, LLC AT 15222 62ND STREET AND 15XXX 62ND STREET OAK PARK HEIGHTS, MN Planners File No.: 236.02 — 22.11 Date Issued: January 13, 2023 City Council Approval December 13, 2022 Legal Description: (Washington County Geo. Code 31.030.20.32.0143 & 34.030.20.32.0144) Lots 29, 30, & 31, Block 16, McKenty's Addition to Stillwater Owner: Cates Fine Homes LLC & Setac Properties., LLC 2000 Industrial Blvd Stillwater, MN 55082 Applicant: Jennifer Cates Peterson of Cates Fine Homes LLC & Setac Properties, LLC 2000 Industrial Blvd Stillwater, MN 55082 Site Address: 15222 62nd Street and 15xxx 62nd Street Oak Park Heights, MN 50082 Present Zoning District: R-2 LOW AND MEDIUM DENSITY RESIDENTIAL DISTRICT Permitted uses set forth in Ordinance 401 & 402 Section 401.15.C.1 and 402.01.G L VARIANCES FOR: The City of Oak Park Heights approved an application from Cates Fine Homes LLC and Setac Properties, LLC for a variance from Subdivision Regulations and process, and variance for lot size and lot width to allow for construction on two single family lots at 15222 62nd Street and 15XXX 62nd Street. The property currently has one single family home that will be removed. Lot 29 (PID 31.030.20.32.0143) is owned by SE -TAC PROPERTIES, LLC and Lot 30 & 31 (PID 34.030.20.32.0144) is owned by Cates Fine Homes, LLC. The sites consist of Lot 29 at 5,382 square feet in size and Lots 30 & 31 with 10,758 square feet. The property is zoned R-2 Low and Medium Density Residential District. The property line is proposed to be adjusted to create two similarly sized lots, one being 8,093 square feet, and the second one at 8,047 square feet. The proposed lots will not comply with lot size and width requirements of the R-2 District, requiring a variance. The other variance is required to allow the boundary line adjustment as a minor subdivision and not require a preliminary/final plat. Planning Staff prepared a planning report dated December 1, 2022, reviewing the request, and the Planning Commission held a public hearing on December 8, 2022 and recommended approval with conditions. The City Council considered all materials, staff reports, and recommendations on December 13, 2022, found that practical difficulties were established, that the proposed development is consistent with the surrounding neighborhood, and passed a Resolution granting the application and approving the Variances subject to conditions as follows: IL ADDITIONAL RESTRICTIONS AND CONDITIONS. 1. The landscape plans are subject to review and comments of the City Arborist. 2. The final grading, drainage and utility plans shall be subject to the review and approval of the City Engineer. 3. The proposed single family dwellings shall be consistent and similar in style to what was proposed in the application packet. III. Reference Attachment: The report of the City Planner dated December 1, 2022 and all exhibits and site plans approved by the City Council are annexed hereto by reference as Exhibit A. IN WITNESS WHEREOF, the parties have set forth their hands and seals. CITY OF OAK PARK HEIGH'T'S Date: BY C M -Y Con -ib r, Mayor Date: By Er' J son, City Administrator Cats Fine Homes LLC t - Date: (� j BY ' Printe acne: Jennifer Cates Peterson Title0-r--X� Setac Properties, LLC Date: By Print name: Jennifer Cates Peterson `Title: /Yid -/t NOTE: Setac Properties, LLC owns - LOT 29 Cates Fine Homes, LLC owns LOTS 30 & 31 This instrument drafted by: Eckberg Lammers, P.C. (KSS) 1809 Northwestern Avenue Stillwater, NIN 55082 EXHIBIT A Variance Document Planning Report See Attached. TPC3801 Thurston Avenue N, Suite 100 Anoka, MN 55303 Phone, 783.231.5840 Facsimile; 763.427.0520 TPCCu)PlanningCo.00m PLANNING REPORT TO: Eric Johnson FROM: Scott Richards DATE: December 1, 2022 RE: Oak Park Heights — Variance for Subdivision Process and Regulations, Variance for Lot Size, Variance for Lot Width —15222 62nd Street and 15XXX 62nd Street TPG FiLE BACKGROUND 236.02 — 22,11 Jennifer Cates Peterson of Cates Fine Homes LLC/Setac Properties (Applicant) has made application for a variance from Subdivision Regulations and process, and variance for lot size and lot width to allow for construction on two single family lots at 15222 62nd Street and 15XXX 62nd Street. The property currently has one single family home that will be removed. The site consists of one parcel at 5,382 square feet in size and another with 10,758 square feet. The property is zoned R-2 Low and Medium Density Residential District. The property line is proposed to be moved to create two lots, one at 8,093 square feet, and the second one at 8,047 square feet. The proposed lots will not comply with lot size and lot width requirements of the R-2 District, requiring a variance. The other variance is required to allow the boundary line adjustment as a minor subdivision and not require a preliminary/final plat.. EXHIBITS The review is based upon the following submittals: Exhibit 1: Project Narrative Exhibit 2: Site Location Map Exhibit 3: Certificate of Survey Exhibit 4: Neighborhood Lot Size Comparison Exhibit 5: Lot Line Adjustment Exhibit :6 Proposed House Elevations Exhibit 7: Proposed Floor Plans Exhibit 8: Landscape Plan — 15222 62nd Street Exhibit 9: Landscape Plan — 15XXX 62nd Street Exhibit 10, Stormwater Management Plan Exhibit 11; Utility Plan Exhibit 12: Report of the City Engineer PROJECT DESCRIPTION The Applicant has provided a project narrative that is found as Exhibit 1 of this report. The property at 15222 62nd Street has an existing house on a 40' wide lot. The property at XXX>O( 62nd Street is an 80' wide vacant tot. We are proposing demolishing the home, splitting the 120' into (2) 60' lots, and building new homes on each lot. Enclosed is a site plan that shows each house fitting in the buildable setbacks and inspiration of what the homes would look like. These homes are conservative in size and their style fits the neighborhood. The lots will be fully landscaped, and trees will be planted for privacy and screening (see enclosed landscape plan). ISSUES ANALYSIS Comprehensive Plan. The property is designated as Low Density Residential on the Proposed Land Use Map. The two single family dwellings will be consistent with this land use designation. Zoning. The property is zoned R-2 Low and Medium Density Residential District. The District requires the following: District Lot Area Lot Width Building Height -2 10,400 SF 80 feet 35 feet As indicated, the proposal is to create two lots, one at 8,098 square feet, and the second one at 8,047 square feet. Additionally, the proposed lot widths are 69.5 feet for 15222 62111 Street and 60.0 feet for 15XXX Street. The lots are adequately sized for the two houses proposed and all the setback requirements will be met. Section 401.15.0.1 Yard Requirements states the fallowing: No lot, yard or other open space shall be reduced in area or dimension so as to make such lot, yard or open space less than the minimum required by this Ordinance, and if the existing yard or other open space as existing is less than the minimum required, it shall not be further reduced. No required open space provided for any building or structure shall be included as pari of any open space required for another structure.. Section 401.04.A General Provisions and Standards of the Zoning Ordinance lists criteria for review of a variance from the lot area and lot width requirements. A review of those criteria is found later in the report. Subdivision. The provisions for review of a minor subdivision are found below. The request is to move the property line to create two lots of the same width. The provisions for minor subdivisions allow for an administrative approval if the new lots conform with the Zoning Ordinance lot size minimum standards, in this case, the minimum standards will not be met. Staff suggested that the minor subdivision process be used, rather than requiring a preliminary/final plat which would be a significant additional expense to the Applicant. G. Minor Subdi'vi'sions. a. Qualification; This section applies to the following applications: 1. In the case of a request to divide a portion of a lot where the division is to permit the adding of a parcel of land to an abutting lot so that no additional lots are created and both new lots conform to Zoning Ordinance lot size minimum standards C. Processing= 1. if the land division involves property which has been previously platted, or the total property area included is greater than ten (70) acres, the Zoning Administrator may approve the subdivision, provided that it complies with applicable provisions of this Chapter. There are no criteria for a variance from procedural standards of the Subdivision Ordinance, but the Planning Commission and City Council should determine if allowing this boundary line adjustment is appropriate. Based on the fact that the request is a simple adjustment of a lot line, this should be processed as a minor subdivision.. Setbacks. The R-2 District requires the following: District Front Yard Side Yard Rear Yard R-2 30 feet') 10 feet? 30 feet The proposed setbacks are compliant with the requirements of the R-2 Distrct. Building Height. The building height maximum in the R-2 District is 35 feet. The single family structures proposed for these two lots will be well within that height limit. Parking. Section 401.15.F.9. of the Zoning Ordinance provides the parking requirements for single family dwellings as follows: Single Family, Two -Family, and Townhouse Unit. Two (2) spaces per unit, both of which are in a covered garage structure. Each of the single family structures will have a two stall garage and adequate room on the driveways for an additional two cars per lot. Grading/Drainage/Utilities. The Applicant has provided a stormwater management plan and utility plan for the project. The plans shall be subject to review by the City Engineer. Landscaping, A landscape plan is provided for each of the two lots. The proposed landscaping is appropriate for single family development. The landscape plans are subject to review and comments of the City Arborist. Design Criteria — Single Family. Sections 401.15.0.7-8 provide single family building requirements for new construction. The proposed single family homes appear to meet the requirements, but the final pians will be considered at the time of building permit review. Variance Criteria — Zoning. Review Criteria. In considering all requests for a variance and in taking subsequent action, the Planning Commission and City Council shall make a finding of fact that the proposed action will not a. Impair an adequate supply of light and air to adjacent property. b. Unreasonably increase the congestion in the public street. C, Have the effect of allowing any district uses prohibited therein, permit a lesser degree of flood protection than the flood protection elevation for the particular area, or permit standards which are lower than those required by State law. d. Increase the danger of fire or endanger the public safety. ea Unreasonably diminish or impair established property values within the neighborhood, or in any way be contrary to the intent of this Ordinance. Violate the intent and purpose of the Comprehensive Plan. g. Violate any of the terms or conditions of item 5, below. 5. Conditions. A variance from the terms of this Ordinance shall not be granted unless it can be demonstrated that: a. Undue hardship will result if the variance is denied due to the existence of special conditions and circumstances which are peculiar to the land, structure, or building involved and which are not applicable to other lands, structures or buildings in the same district. 1) Special conditions may include exceptional topographic or water conditions or, in the case of an existing lot or parcel of record, narrowness, shallowness, insufficient area or shape of the property. A,_. 2) Undue hardship caused by the special conditions and circumstances may not be solely economic in mature, if a reasonable use of the property exists under the terms of this Title. 3) Special conditions and circumstances causing undue hardship shall not be a result of lot size or building location when the lot qualifies as a buildable parcel. b. Literal interpretation of the provisions of this Ordinance would deprive the applicant of rights commonly enjoyed by other properties in the same district under the terms of this Ordinance or deny the applicant the ability to put the property in question to a reasonable use. C. The special conditions and circumstances causing the undue hardship do not result from the actions of the applicant. d. Granting the variance requested will not confer on the applicant any special privilege that is denied by this Ordinance to other lands, structures or buildings in the same district under the same conditions. e. The request is not a result of non -conforming lands, structures or buildings in the same district. f. The request is not a use variance. g. The variance requested is the minimum variance necessary to accomplish the intended purpose of the applicant. h. The request does not create an inconvenience to neighboring properties and use. Comment: The Planning Commission and City Council should review the above criteria regarding the request for the Zoning variance.. City Staff sees no neighborhood, public service, public safety, or infringement on adjoining property issues with this request. The neighborhood has been developed with a variety of lot sizes, some similar to what is proposed. The proposed lots and houses will not be at odds with what is already in place in the neighborhood. Variance Criteria — Subdivision. There are no criteria for a variance from procedural standards of the Subdivision Ordinance, but the Planning Commission and City Council should determine if allowing this boundary line adjustment is appropriate as an administrative approval. Based on the fact that the request is appropriate for a minor subdivision, the variance is supported by Staff. Subject to the requests for a variance from Subdivision Regulations and process, and variance for lot size and lot width to allow for construction on two single family lots at )m 15222 62nd Street and 15XXX 62nd Street, Staff would recommend approval with the following conditions: I The landscape plans are subject to review and comments of the City Arborist. 2, The final grading, drainage and utility plans shall be subject to the review and approval of the City Engineer. 3. Any other conditions of the Planning Commission and City Council, PC: Julie Hultman AM PROJECT NARRATIVE Project Address: 15222 62nd Street & xxxxx 62nd Street Project Description: The property at 15222 62nd Street has an existing house on a 40' wide lot. The property at xxxxx 62nd Street is an 80' wide vacant lot. We are proposing demolishing the home, splitting the 120' into (2) 60' lots, and building new homes on each lot. Enclosed is a site plan that shows each house fitting in the buildable setback and inspiration of what the homes would look like. These homes are conservative in size and their style fits the neighborhood. The lots will be fully landscaped and trees will be planted for privacy and screening (see enclosed landscape plan). office 651.439.2844 1 fax 651.430.2922 1 .,. b catesfinehnmes.com 2000 ndustrie' bOUlerard - stili v or " :,yin, esota 55.082 I loom= IN MV Iz 773 91 z L NZ n x Z' LU z z uz CL, N VI 1211. so!raj Q N r 00 3 Ln Z A Ln Z Y311 It'll 0 z U5 Iz 773 91 CL, 1211. so!raj r 773 91 CL, 1211. so!raj r 773 CL, .4- A.% ZA L - - - - - - - - - - oil j IQ - 0A J, ----- ---- id ill ------- ---------- --------- --- -- .......... 8 5x V ---------- ------- Hk 3Nn imvd a3sadow --- fl, ---- -------- ---------- ---------- ------ fe p —111wo"1111 eF 14 tx 0 �,.- � 0 ,-) lai Or N X Lu u vi w�- ZZ 3z u Z uj 2 V) a v C, X0 ce I-JU LU LM V) Z N N C) z ZA L - - - - - - - - - - oil j IQ - 0A J, ----- ---- id ill ------- ---------- --------- --- -- .......... 8 5x V ---------- ------- Hk 3Nn imvd a3sadow --- fl, ---- -------- ---------- ---------- ------ fe p —111wo"1111 eF 14 tx 0 I I MILAMItIME L� 15 2 12 Wo -t � 0 To 9 am H c I m ----------------------- —Lonoscape mot., inc. �� - ^` « w=t A »&� � � � _ { \. � }j/ \ - I S"I"ORMINATER 1 IANAG�,"EN, ENT"' PLANN Prepared By., MARC LAND SURVEYING &ENGINEERING Lots 29, 30, & 31, Block 16 Mckenty's Addition to Stillwater 15222 62nd Street N Oak Park Heights, Minnesota November 16111, 2022 Rev. — November 2e", 2022 Rev. — November 29`", 2022 Prepared For. Cates Fine Homes 200 Industrial Boulevard Stillwater, MN 55082 I hereby certify that this Plan, Specification or Report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota. Jeffrey—A Pras'ch, PE Project Engineer 52706 License Number 11.16.22 Date Stormwater Management Pian . $4 15222 62nd Street N - Oak Park Heights, MN Rev. - November 291, 2022 Table of Contents Tableof Contents.............................................................................................. ............................... i 1.0 Project Overview ............................................................................................................... li 2.0 Design Considerations......................................................................................................... ii 3.0 Rate Control............................................................................................................................. ii Table 3° 1- Discharge Rate Summary .......... ° .... ° .................... ° ... ° ... ° .............................. r°i 4.0 Volume Control...................................................................................................................... ii Table 4.1 - Discharge Volume Summary "° Appendix A- Figures Figure 1 - Drainage Areas Existing Conditions Figure 2 - Drainage Areas Proposed Conditions Figure 3 - Precipitation Data Appendix B - Existing Conditions 2 -Year Summary ..................................... ..........................1-3 Appendix C - Existing Conditions 10 -Year Summary................................................................4-5 Appendix D - Existing Conditions 100 -Year Summary ..............................................................5-7 Appendix E - Proposed Conditions 2 -Year Summary .............................................................7 -11 Appendix F - Proposed Conditions 10=Year Summary .......................................................12-14 Appendix G - Proposed Conditions 104 -Year Summary .......................................................15-17 AppendixH - Soils Data....................................................................................................1-3 • Stormwater Management Plan 15222 62nd Street N — Oak Park Heights, MN Rev. - November 29th, 2022 1.0 Project Overview A Lot Split with two new residences is being proposed at 15222 62nd Street N in the City of Oak Park Heights, Minnesota. The current site is 0.61 acres with a residence, concrete sidewalk, stoop, concrete slab, and gravel driveway on the property. There are existing residences to the north, east, and west with street to the south. Currently, the entire property slopes down to the east causing all of the stormwater to flow onto private property. The existing drainage conditions are shown in pure 1. The proposed improvements include a lot split into two separate residences that each will have a new residence. The house located to the east will have a porch, deck, sidewalk, and driveway. The house to the west will have a sidewalk and driveway. For the proposed conditions, the existing flow path will be disrupted with the addition of the second house. The proposed grading will direct water from the west side yard, middle side yard, and front yards towards the street with the rear yard and east side yard flowing to private property. This grading will allow for a decrease in rates and volume discharged to private property. Fissure 2 shows the proposed drainage conditions. 2.0 Design Considerations The site is under the jurisdiction of the City of Oak Park Heights. According to the City of Oak Park Heights Engineering Department, as long as rates and volume discharged to private property in the 2, 10, and 100 -yr storms are decreased, then on-site storage will not be required for this site. The on-site storm water system design is based on their guidelines: Rate and Volume Modeling Software — HydroCAD 10.10 #: Rainfall Distribution Y MSE 24-hour Type III Rainfall Data — NOAA Atlas 14 rainfall data as shown in Fi ure 3. . Soil Conditions — Hydrologic Soil Group B based on Web Soil Survey shown in Appendix D. 3.0 Fate Control The City regulates the rate of water discharged from the site. The requirement is that there be no increase in peak rate to private properties for the 2, 10, or 100 year annual probability events. Table 3.1 shows the existing and proposed runoff rates to private property. Table 3.1 — Discharae Rate Summa Discharge Rate [cfs] Discharge Node Storm Event 2 -Year 10 -Year 100 -Year Pre- Post.- Pre- Post- Pre- Post - Private Property 0.32 0.30 0.83 0.63 2.31 1.55 As shown in the table above, the discharge rates to private property is reduced for each storm cycle, therefore the requirement is met. See the HydroCAO summary in Appendices B -G. 4.0 Volume Control The City regulates the volume of water discharged from the site. If there is no increase in volume of water discharged to private property, no on-site ponding is required. The impervious area and volume control summary can be found in Table 4.1. Stormwater Management Plan 15222 62"� Street N — Oak Park Heights, MN Rev. - November 29"', 2022 Table 4.1 — Dischartae_Volume Summar [ As shown in Tables 4,1, the proposed discharge volume is less than the existing discharge volume, therefore the requirement is met. See the HydroCAD summary in Appendices B -G. -Discharge Volume [cf] Discharge Node Storm went 2 -Year 10 -Year 100 -Year Pre- Post- Pre- Post- Pre- I Post - Private Property 879 775 1,907 1,480 4,945 1 3,439 As shown in Tables 4,1, the proposed discharge volume is less than the existing discharge volume, therefore the requirement is met. See the HydroCAD summary in Appendices B -G. P4941- 1 f Figures raa � xeee.a a+ xeee�, aw-s �} �4kd A �s .aa. I �I *tee xm-j LEGEND- EJ111 ` 25' wren a I rAiaru 53• • HE rp I I I I I h I r g 0 C7 =earsl xeaae �` 1 I I � I I I I I I � i I 1 4a I 1,07$ M k I I .eaa: xexx.o I �6- I LEGEND- EJ111 ` Eryp9ed Nxlcava a r±i dcare� W O • HE • anaaaeae.c 4v ArOW — DWAOWV e'IYe9rJ 16.74osylt ,d5 5q M .m--_- ± .± a9 5q 0 C7 W. Buy V+kj fFa:9ti2.(750 sq ft nawm uwu 1,07$ M k i ea� �w.mrw t �r ° ■ 140 sq ti Cm Wa4 144 sq k F x F ss. d 20 i6'^ ,� w Pr' h (Ea90 SCALE IN4 --Scop 41 5q ft Q Uk cw Wa±§(E_i9t) O euY (fi9C) 485gk 542 sq ft Cane m Tadd _.:~di i6 SUBCATCHM EWT NUMBER w b � ® PWAWATCH SAM NUMBER •�•••••�� Y C" 01,ry wy fWcst) G WRI (W"Q 574 sq Ft 30 sq R %waa �� 11PJ1S NU#ISER. 62ND ST_ Al. REACH HU#R 4 wwwwwewr .�.w.wy m..wrw er.. otid 5,374 9g K -- a4AR1AOEARROW moo] w.° z �6- I xees.ek > a4 ` Eryp9ed Nxlcava a 5t r±i dcare� W O ..ea I y." anaaaeae.c 4v ArOW — DWAOWV e'IYe9rJ 16.74osylt ,d5 5q M tat.4rra ±WeSU ± .± a9 5q 0 C7 Buy V+kj fFa:9ti2.(750 sq ft Grirel Lha 1,07$ M k mae u®'ii arr �r ° heck (F st) 140 sq ti Cm Wa4 144 sq k F ��• � ,� Pr' h (Ea90 138 ay It --Scop 41 5q ft Q Uk cw Wa±§(E_i9t) O euY (fi9C) 485gk 542 sq ft Cane m Tadd _.:~di 2475g ... .fd 371 t.a 01,ry wy fWcst) G WRI (W"Q 574 sq Ft 30 sq R 14. 62ND ST_ Al. I otid 5,374 9g K FIGURE I 11.18,2022 ■ El---- 0 20 id - - - - - - SCALE IN FEET LEGEND: rr 0 I ""TolumemT mmom POND"TCH BASIN NUkMER La Arra 16.140 sq & UM NUMBER 88.5 meso REACH NLRISER --do-- DRAII"E ARROW LEGEND: rr 0 I PrAmvzd La Arra 16.140 sq & meso 0,656 sq It OL" hYejcl 664 3q ft - - - - -. - &"v (E-0 2,050 3q ft Crake 0wr 1,075 5q ft Alu-1 Gast) 1 40"k Cane- M& 144 sq k Pesch ffa v 136 5q ft 5taap 41 -%j fe .wo—, cc ",A (gest) 4634 ft Ca 247sq It Dnw WAY (fear) 542 sq It Z,371 " 0 O�m-�y (Wftt) 574 sq It Peem"qs 7;F5; Cane. WRA (west) 30 5q ft raw 5,37,0 sq W pe�", _ —3yylm FIGURE 2 1 FIGURE 3 - PRECIPITATION DATA 140AA Adan 14, Volume 8, Version 2 Location name: Minneapolis, Minnesota, USA" Latitude: 44.9128•, Longitude: .93.344W ' Elevation: 919.99 ft"' "soumae: Eslb Maps %7W k source: USES POINT PRECIPITATION FREQUENCY ESTIMATES Sanja Pence. Deborah Mahn. Sandra Pavlovic, Idreni Roy, Michael St. Laurent. Cad Trypaluk Dale Unruh. Michael Yelda, Geoffery Bonnin NOAH, National vaaather Service, Silvef Spring, Maryland PF tabular PDS -based point precipitation frequency estimates with 90% confidence intervals (in inchea)l Average recurrence Interval (years) Dumillowr'L ' I 2 2 55 10tf 200 5�G 1it00 _ I 0.368 0.419 0.532 0.630 € 0.773 { 0.889 + 7.01 1.14 1.31 1.46 6 -min {0,288-0.438} (0,342-0.520) 0.432-®.682} (0.509-17.788) (0.605-1.00) {6.677-1.17] [0,741-1.35]1 0.8114.1.85J [0.949-2.47] 11 0.617 1 0613 0.778 0.923 1.13 1 1.311 F 1.48 1 X87 7 92 2.13 10 -min ' 0.422-0.642)1 (0.501-0.7fi21 O.fi33 0.970} [0.746-1.15)[(0.H&1.47')10.992-1.71 1 {1,09-1.98) I [1.17-2.29] (1.30-2.71] (1.39-3.03) 0,630 4.748 0.948 1.13 t,88 1.59 1 86 3.08 2.36 2,60 15�nin l [0.515-0.7831 [4.fit40.929J {0.772-1.18] I (0.909.1.41) (i.OB-1.79) 10.21-2.48} i (1.32-7.42) (1.43.2.79) (1.58.3.31) 1010-3,69] 3afilln 0.891 1.07 1 1.62 2.00 If 2,30 11 2.61 2.94 F 3.407F 3.77 [0.129 1.11] (4,870-1.32) I (1.i1-1.70) 1 (1.31.2.03) 11.58-2.59)' [1,75 3,041 (1,92-3.50) {%07.4.05} (2.29-4.79) (2.4L5.36) 1.39 1.78 2.16 x.70 3.17 3.67 1 4.21 4.99 8.61 BO.rtrin1.16 (0.950-1.44) I 1,13-1.72] (1.45-2.22) 1 [1.74-2.69] [2.13-334) OA2-4,19) (2,744.95) % (2.96-5.82) (3.38-7,05){3,8&7.98) IF 1,48 I 1.70 ' 231 3.88 3141 f 4A4 4.73 548 887 7.46 2-hr[1.18-i.77) ' 0A0-2.10) [1.81-2,73) J [2,18-3,33]{271-4.48} 4 [3.12-5.32] {3.51-6.36] [3.89 7,64)]1(4.47-9.25) [4.19-10,5] 1.60 I 1,89 2.4B 3.00 8.871 4.63 i 5.48 GAI 7.78 1 8.91 3 r [1.32-1,0 [1,58-2.33] 1 (2.07-3,03) 11 ': (2.45-3.71) (3.145.07) (3,W6.10) _1 (4,09-7.38) (4.58 8.M (5.33-10.9) 1 (5,49-12.5) 1.88 7F 2,21 2.88 F 3.81 T4.5s T 6x48 '1 8:63 7.69 T 9-41 151 8•hr (1.56-2,29] {1,83-2.70] 11 (2.38-3.50) 1 ((1.8&4.31)1(3.W5.96) (4.347.20) I [4,92-8.74] {5.54-10.5){8.47118.2) [7.21-15.1] L 2-.131'F 2.63 3.27 3.98 5.098.06 7.11 = 8.28 9.97 11A 12-11- (1,78-2.58) ; (2.11-3.08) (2.72-3.97)[3.29-4.0 1[4.12-&56] I {4.78 7.85] (5.38-9.41) 1 (5.99111.2) (8.92-13.8){7.82-15.8) l 2491 2.88 3.88 I 4.29 8.41 , 6.39 71 7.48 Fiii 10.6 12.0 (2.09.3.0 '1 (2.40-3.45) (2,994,32) (3:56-5.19) {4.41.6.9.2} : [5,06-8.23] (5.71-9.65) (6.35-11.7) (7.34.14.4} J L!!,W16.5) -24�t1 2.90 3,26 3.94 4.63 IF 6.78 ! 6.76 7,88 9.13. 11.0 12.6 72-d�aTjj (2.45 3.#B) {2,743.BB] (3-31-4-72) f {5,87-5,57} ! (4.74 732) (5.39-8.84)[8.45 10.5} [6.72-12.2) (7,75 3.17 3.62 433 4J36Mj 7.07 8,20 9.47 - 11.3 12.9 3�day {2»68 3.76)1 (2.964.19) 11 (3.58-5,04) 11 (4.13-5,90) (5.047.85) (5df8-9.OD) [6,33-10,7] (7A4-42.8) {8.03-15.4} (8.82.17.5) -J 3 37 3.76 I 4.60 6.22 6.38 740 8.62 8.78 11 �6 13,1 4-ciayf L2,87 -4.00J 13,19-4.46)- (3.845.35) 11 [4.39-8.23][5.27-8.41] I {5.939.36] [8,5911.6) (7.24.12.9){8.2515.7){9,02-17.8) 388 ! 4.38 621 609 7.31 8,34 944 I 10.8 12.3 13.7 7iiay ,[(3: 1 4.57] [3.T4 5.18] [4.#&6.23] {5.►4 7,72] {6,02-9.44) ; [6,69 10.4) 17.31-12.1) I [7.89-13.9) (8.7&16,5} {9,46-18.5) j1 4.37 4.96 IF 6.98 6.83 € 8.11 9.1610.2 11,4 13,0 14.2 1 {3.74.513) j [4,24.5.82) {5.0&7.01) {5.7&8.08Y ; {6,67-9,93) {7,34 11.3) (7,93-13.0) (8.45-14.8)11 6.94 6.67 7.85 4 8.66 1 16.8 i 11.3 12.4 13.5IF 16.07F16.1 20 -day I IF {5,12 8.92] {5.74 7.77) j (6,74-9,1E) 11 (7.104) L(8.15:12.4)11(9.13 13.8} , [9.87-15.5) {10.1-17.3) [10.8-19.7) [11.3 3D�ay 7 33 8 i8 [8.34 6.50) {7.07-9.50 9.68 (8.23-11.1] 10,7 [9,14 12.5} 12,2 ; [10.1=14.6) j 13,3 14.6 {10.8 18.2) (11,3 17,9)6 18.6 {11,7-19,8] 17.0 [72,"Y22 2] 18.1 [12,7-24.1] IF 8.13 1 1 11,813.2 14.9 IF 153 17A f 18.6 19,8 1 20.8 45 -day [7.93 10.5] {8.84 11,81 'a {14.2-137] II (11.3 15.3) (12.3-17.7) I(13.1.19.5); {i3.fi 21.4) ! [13,9-23.4] (14.4-25.8) [14.8 27,7} 10.7 1 12A 13.9 16 5 17A i 18.8 20.1 21.2 22,fi 28,6 SQ -day^ l {9.30-12.3) {10.4-138J�, 112,1-161) i (13 3 179) i [14,4.20.5], {15.222.5] [15.7-24.8) [18.426.71 118.429.2} {1$.7w31.1] 1 precipitation frequency (FI) as ` in this table are based on frequency analysis of partial dwatim aeries {POS}, Mxnbere in parordhosis are PF es . a1 low or and upper bwnds of the 90% cerdidance mtwv&L The probablilly that pfocipitaWn frequency Swrates {for a galsn duration arsd average recurrence WArval) w 8 be greater than the upper bourW (or fess ftn the low or grid) is 5%. Es . st I Upper bDunds, are not chocked against proboW rroxirnum precipitation (PMP) es*mtes and may be highof than cu rerun! void PMP values. Please refer W f tOFAA Atlas 14 documant for more information. 1A UqAj•nj,, Existing Conditions 2 -Year Summary Private Property Subrat` Reach an . Link, Existing Conditions MSE 24 -hr 3 2 -Year Rainfall=2.86" Prepared by Qemarc Printed 1111612022 HrdroCAD®10.1 Me Wn_09313 0 2820 fty&oCAO Software Solulions LLC Page 2 Time span=0,00-72.00 hrs, dt=0.01 hrs, 7201 paints Runoff by SCS TR -20 method, UH=SCS, Split Pervious/lmperv. Reach routing by Slot-Ind+Trans method - Pond ranting by Stor-Ind method Subcatchmentl: Private Property Runoff Area --16,140 sf 14,69°. impervious Runoff Depth=0.65" Tc=7,8 mire CN --61M Runoff=0,32 cfs 679 cf Total Runoff Area g 16,140 sf Runoff Volume = 879 d Average Runoff Depth =11.65" 85.31% Pervious = 13,768 sf 14.69% Impervious = 2,371 sf Existing Conditions MSE 24 -hr 3 2 -Year Rainfall=2-W Prepared by Dernarc Printed 11/16/2022 HX&CADO 10.10.6® sin 09313 0 2020 HydreCAD Software Sol ftns LLC _ Pa ca a Summary for Subcatchment 1: Private Property Runoff = 4.32 ds C 12,15 hrs, Volume= 879 d, Depth= 0.85" Runoff by SCS TR -20 method, UH=SCS, Split PeMousAreperv., Time Span= 0.00-72,00 hrs, dt= 0.01 has MSE 24 -hr 3 2 -Year Rabsfall=2.86" Area (so CN Description _ 13,788 61 >75% Grass oover, Good, HSG B 2,371 98 Roofs, HSG S 16,140 66 Weighted Average 13,768 e1 85.3195 Pervious Area 2,371 98 14,69% Impervnusa Area To Length Slope Velpotty Capacity Deseniption (Min] (feet) (ftlft) (ft/aec) (ds) 7,0 Dired Entry, Subcatchment 1: Private Property I ydrogra h 0,36 0.34: 0.32 CfS ��+a w 0.32 MSE 24 -hr 3 0.3 0.28y, 2 -Year Rainfall=2.86 0.28 0.24 Runoff Area='16(,140 sf 0.22- -' Runoff Volume=979 cf 0.2 0.18 Runoff Depth=0.65" iff 0.18 0.14 Tc=7• o min �a, CN=61195 0.04 0,02 0 2 14 16 18 20 22 24 26 28 30 32 34 36 38 41 Time (hours) Appendix C Existing Conditions 10 -Year Summary Existing Conditions MSE 24-hr 3 10-Year RainfaN=4.29" Prepared by Demarc Printed 11/1612022 HydroCADS 10.10-5a sin 08313 02020 H1rdr 2 Software Solutions LLC Page 4 Time span®0.08.72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH-SCS, Split PerviousAmperv. Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchmentl: Private Property Runoff Area= 16.140 sf 14.59% impermus RuW Depth=1.42" 7c=7.0 min CN=51198 Runoff=0.83 cfs 1,907 of Total Runoff Area= 16,144 st Runoff Volume =1,907 of Average Runoff Depth =1,42" 85.31% Pervious = 13,788 sf 14.69% Impervious w 2,371 sf Existing Conditions MSE 24 -hr 3 10 -Year Rainfall=4,29" Prepared by Demarc Printed 1111612022 H j MQ_AbO 10.105® aM 09313 ® 7026 HydroCAD Software .So ion LLC Summary for Subeatchment 7., Private Property Runoff = 0.83 cls @ 12.15 hrs, Volume= 1,907 cf, Depth= 1.47 Runoff by SCS TR -2D me", LlH=SCS, Split Pervuwsflrnperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24 -hr 3 10 -Year Raintag=4.29" Area (M CN Doscr pt orr 13,768 61 176% Gross cover, Good. HSG 8 2 371 98 Roofs, HSG B 16,140 66 Weighted Average 13,768 61 85,31% Pervious Area 2,371 98 14.69% InVervious Area To Length Slope Velocity Capacity Description (min) (feet) (ftlft) (rtlsec) (ds) 7,0 Direct Entry. 0.75 0.7 0.6 0.55 0.5 It 0,46 0.4 Subcatchment 1. Private Property Hydrograph 0.83 CiS MSE 24 -hr 3 10 -Year Rainfall=4.29" Runoff Area=16,140 sf Runoff Volume -=1,907 cf Runoff Dep#h=1.42" Tc=7.0 min C:N=61198 0 2 4 6 B 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 64 56 58 60 62 84 68 68 Time (hours) Appendix D Existing Conditions 100 -Year Summary Existing Conditions MSE 24-hr 3 100-Year Rainfa#=7.49" Preparers by DernarG Printed 11 11612022 k droCADO 10.1Sk5a sin ®9313 @ 2020 H ytoCAD Svitware Solutions LLC Time spanwD.00-72.00 hrs, dt=0.01 hrs. 7201 points Runoff by SCS TR-20 rnethod, UH=SCS, Split Perviousllmperv, Reach routing by Stor-Ind+Trans method - Pond routing by Star-Ind method Subcatchment1: Private Property Runoff Area=16,140 sf 14.64M Impervious Runoff Mgth'3.W' Tez7A min CN-61/96 Runoff--2.31 ds 4,945 d Total Runoff Area = 16,140 sf Runoff Volume = 4,945 cf Average Runoff Depth = 3.98" 36.31% Pervious= 113,7630 1469% Impervious = 2,371 sf Existing Conditions MSE 24 -hr 3 100 -Year Rainfall=7,49" Prepared by Demarc Printed 1 111 612022 H Ar]& 10.10-5a sIn 08313 0 2020 HydroCAD Software Solubons LLC Em 7 Summary for Subcatchment 1: Private Property Runoff = 2.31 tis 12 12.14 hrs, Volume 4,945 ct. Depth= 3,66" Runaff by SCS TR -20 method, IJH-=SCS, Split PerviousAnperv., Time Span= 0.00-72,04 hrs, dt= 0,01 hts MSE 24 -hr 3 1MYear Rainfall=7.49" Area CN Descri° n 13,768 61 3-759 Grass cover, Good, HSG B 2.371 98 Roofs, HSG B 16,140 66 Weighted Average 13,768 61 85,31% Pervious Ares 2,371 98 14,69% Impervious Area Tc Length Slope Velocity Capeaty Destx ption min feet TMfse tfs 7.0 Olred E"by, Subcatchment 1: Private Property itltl. • F.. ✓.. f } RunOfl 2.31 Cf8 MSE 24 -hr 3 2 = 100 -Year Rainfall=7,49" Runoff Areae=16,140 sf p Runoff Volume=4,945 cf Runoff Depth=3.68" U Tc=7.0 min 1" N=81198 12 14 16 18 20 22 24 26 2B 30 32 34 36 38 40 42 44 46 48 50 52 54 56 56 Eta 62 64 Time (hours) Appendix E Proposed Conditions 2 -Year Summary 2 Private Property Street C Routing Diagram for Pro omW Conditions t) J�R�W on , Linkp f Prepared by Demarc. Printed 11/16/2022 HydruCADO 10.10--5a sM 09313 0 2020 HydroCAO Software Solutions t LC Proposed Conditions MS€ 24 -hr 3 2 -Year Rar`nfaf1=2.86" Prepared by Dernarc Printed 11116/2022 HydraCADy910.145a sin 09313 0 2020 HydroCAD Software Solutions LLC r. Page 9 Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR•20 method, UH=SCS, Split Perviousllmperv. Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Suboatchmentl ; Private Property Runoff Area -9,805 sf 27.41 % Impervious Ra4i Depth=0.55" Te=7.0 min CN=81158 Runoff=0.30 ds 775d Subcatchment2: Street Runoff Area=6,335 sf 42.48% lmpery ous Runoff Depth --1,3(Y' Tc=7.0 min CN=61198 Runoff=0.28 cfs 685 cf Total Runoff Area = 16,140 of Runoff Volume a 1,459 cf Average Runoff Depth =1.69" 66.67% pervious = 10,761 sf 33.33% Impervious = 5,579 sf Proposed Conditions MSE 24 -hr 3 2 -Year Rainfal1=2.86" Prepared by Demarc Pry 11116f2022 hnk2741.10-Sa sM 49313 C 2020 tL*oCAD E2UML@ *M LLC Page t0 Summary for Subcatahment 1; Private Property Runoff = 0.30 ols @ 12.15 hrs, Volume= 775 cf. Depthm 0,95" Runoff by SCS TR -20 mefliod, UH=SCS, Spill Perviouslin4wv., Time Span= 0,00-72,00 hrs. dt= D,01 hrs MSE 24 -hr 3 2 -Year Rainfall=2.86" Area jIft CN Descri ' 7,117 61 >75% Grass cover, Good, MSG B 308 98 Paved parking, HSG 2.360 98 Roofs, HSG 8 9,805 71 Weighted Average 7,117 61 72,59% Pervious Area 2,687 98 27.41 % Impervious Area To Length Slope Velocity Gapaclly DescripWn min feet) (M) (ftlseo ds 7.0 Direct Entry, 0, 0 12 14 16 16 Subcatchment 1 Private Property Ism . ;. MSE 24 -hr 3 2 -Year Rainfal1=2.88" Runoff Area=9,805 sf Runoff Volume=775 cf Runoff Depth=0.95.. Tc=7.0 min cN=61 r98 2 34 38 38 40 42 44 46 49 50 52 54 56 58 60 62 64 66 68 70 72 Tired (hours) Runoff Proposed Conditions MSE 24 -hr 3 2 -Year Rainfap=2.86" Prepared by Demsrrc Printed 11116/2022 HydraCA 10.10-5s SM09313 02Q2OHy_O%CADSoftwsreSokAiomLLC Pane 11 Summary for Subcatchment 2: Street Runoff r 0,28 M Q 12.14 hrs, Voiunv= 685 cf, Depth= 1.30" Runoff 5y SCS TR -20 rnethod, UH=SCS, Split Pery cus/lmperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24 -hr 3 2 -Year Rainfall=2.88" Area (sf CN Description 3,644 61 >75% Grass coyer, Good HSG B n 1,165 98 Paved parking, HSG 6 1,626 98 Roofs HSG S 6,335 77 Weighted Average 3,644 61 57.52% Pervious Area 2,691 98 42.48% Impervious Area Tc Length Slope VeitaGty Capacity {mint Vae) Lf VAR Enc) Lai 7,0 Direct Entry, Subcatchment 2: Street Hydrograph 6.28 —Cf S— I Runolrt u.ka MSE 24 -hr 3 0,26 0.24 2 -Year Rainfall=2.86" 0.22 Runoff Area=6,335 sf 0.2 0.18.: C Runoff Volume^685 Cf v 0,16 Runoff Depth=l.30" 0.14 0.12 Tc=7.0 m i n 0.1 CN=61198 0.08 0.08 O.M. 0.fl2 4 2 4 6 B 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 Tlme (hours) Proposed Conditions 1 o -Year Summary Proposed Conditions MSE 24 -hr 3 10 -Year Ra n{aR=4.29" Prepared by Demarc Printed 11/1&2022 HydroCA1* 10.10-5a sin 09313 0 2020 HydroCAD Software Solutions LLC Paag Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR -20 method, UH -SCS, Split Pery. ousllmperv. Reach routing by Stor=l nd+Trans method - Pond routing by Stor-Ind method Subcatchmentl. Private Property Runoff Area -=9,805 sf 27.41% Imperv"s Ru eff Depth=1.81" Tc 7.0 min CN=61198 Runoff=0.83 es 1,480 cf Subeatehment2: Street Runoff Area=6.335 Si 42,48% Impervious Runoff Depth --2.28" Tc=7.0 min CN=61!98 Runoff=0.51 da 1.202 cf Total Runoff Area g 16,140 sf Runoff Volume = 2,682 of Average Runoff Depth s 1.98" 66,67% Pervious =10,781 sf 33.33% Impervious = 6,379 sf Proposed Condfflons MSE 24 -hr 3 90 -Year Rainfall=4, 29'" Prepared by Demarc Printed 11M612422 HXLqCADOD 10.10 Sa sin 48313 0 2020 H droCAD Software SohB orrs LLC Summary for Subcatchment 1: Private Property Runoff = 4,63 cts Q 12.15 hrs, Volume= 1,480 cf, Depth= 1.81" Runoff by SCS TR -20 method, UH=SCS, Split Pervious/lmperv., Time $pan= 0 D -72.40 hrs, dt-- 0.01 hrs MISE 24 -hr 3 14 -Year Rainfalt=4.29' Area (sq CN Description 7,117 61 X75% Grass cover, Good, HSG B 308 98 Paved parlung, HSG B 2,380 98 Roofs HSG B 9,845 71 Weighted Average 7,117 81 72.50% Pers Area 2,887 98 27.41°. Impervious Area Tc Length Slope Ve ty Capacity Descrwbon min feet(fl/sec) cis 7.0 Mod Entry, Subcatchment 1: Private Property Hydrograph 0.7 - 0.65-0.63 C(5 MSE 24 -hr 3 0.6- 0.55 .6-0.55 1 O -Year Rainfall=4.29" 4.5 _ Runoff Area=9,805 sf n,45 Runoff Volume=1,480 cf 0.41'Runoff depth=1,81" 44 Tc=T.O min 4.251 C N=61198 Time (hours) FO Runoff Proposed Conditions MSF 24 -hr 3 90 -Year Ra nfaN=4.29" Prepared by DerinarC Printed 1 111 612 022 HydroCAD& I D I O5a alit 09313 02020 NX&oCAC Software SchAmns LLC PAoe 14 Summary for Subcatchment 2: Street Runoff = 0.51 cis Q 12,14 hm. Volume= 1,242 d, Depth= 2.28" Runoff by SCS TR -20 method, UH=SCS, Spilt Pervious/imperv., Time Span= 0.00-72.00 hm, dt= 0A1 hrs MS€ 24 -hr 3 10 -Year Rainfall=4.79" Area Le CN DescAption 3,644 61 >75% Grass cover. Good, HSG B 1,165 98 Paved perking, HSG B 1,526 98 Roofs, HSG B 6,335 77 UVeighted Average 3,644 61 57,52% Pervious Area 2,691 98 42.48% Imperwous Area Te Length Slope Velocity Capacity Desrxipbon min feet Rift msec ds 7.o DI roe Entry, Subeatchment 2: Street Hydrogrtaph 0.5'1 cfs5 0.5 0.45 0.4 0,35 0.3- 1; M 025- 0,2 0.15 0.1 0.05 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 41 Time [hours] MSE 24 -hr 3 10 -Year Rainfall=4.29" Runoff Area=9,335 sf Runoff Volume=1,202 cf Runoff Depth =2.28" Tc=7.Q min CN -81198 Rupp Appendix G Proposed Conditions 100 -Year Summary Proposed Conditions MSE 24-hr 3 900-Year Rainfe1W.49" Prepared by Demarc Printed 11/16/2022 H droCADS 10,10-5a sin 09313 02620 H droCAD Software Solutions LLC page Ik Time span=0.00-72.00 hrs, dt=0.01 hrs. 7201 points Runoff by SCS TR-20 method, UH=SCS, Split Perviousllmperv. Reach routing by Star-lid+Trans method - Pond routing by Stor-Ind method 8ubcatchment1: Private Property Runoff Area=9,5715 sf 27.41% Impervious Runoff Depth=421" Tc-- 7.0 min CN=61196 R7maff=1,55 cls 3,439 cf Subcatchment2: Street Runoff Area=6,335 sf 42.4645 Impervious Runoff Dsplh=4.84" Tc77 0 men CN -61M Runoff=1.12 cfs 2,555 cf Total Runoff Area= 16,140 sf Runoff Volume g 6,895 cf Average Runoff Depth= 4.46" 66.679 Pervious = 10,761 sf 33.33% Impervious = 6,379 of Proposed Conditions MSE 24 -hr 3 100 -Year Rainfafl=7.49" Prepared by Dernarc Printed 11!1812022 Hy 10.105a a1n 09343 02020 HrdroCAD Software.S LLC ., Psoe 16 Summary for Subcatchment 1: Private Property Runoff = 1.55 ds @ 12.14 hm, Volume- 3,439 d, DeWs 4.21` Runoff by SCS TR -20 meth, 11H -SCS, Suit Per aousft"rv., Time Span= D.0t1.72.00 hrs, dt= 0,01 bre MSE 24 -hr 3 100 -Year Rainfa#=7.48° Area (LfL CN 7,117 61 x75°% Grass ower, Good, HSG B 308 98 Paved parking, HSG B 2.380 98 Roofs, HSG B 9,808 71 Wfthtted Average 7,117 61 72.59% Pervious Area 2,687 98 27.4146 Impervious Area Tc Length Slope Veb* Capacity Description 7.0 Direr Entry, Subcatchment 1: Private Property ,.. 1.55 cfS 4 16 18 20 22 24 26 28 30 32 34 36 38 41 Time (hours) MSE 24 -hr 3 100 -Year Rainfall=7.49" Runoff Area=9,805 sf Runoff Volume=3,439 cf Runoff Depth=4.21" Tc=7.4 min CN=61198 L Proposed Conditions MSE 24 -hr 3 1O0 -Year Rainfall=7.49" Prepared by Demarc Printed 11/1612D22 HYdroCADO 14.14-Sa sM 49313 0 2020 H dr®CAD Software SoMions LLC _ _ Page 17 Summary for Subcatchment 2: Street Runoff 112 cfs Q 12,14 hrs, Volume= 2,555 cf, Depth= 4.84° Runoff by SCS TR -20 method, UH=SCS Splil PerviousA rv„ Time Span= 0.0D-72.00 hrs, di-- 0.91 hrs MSE 24 -hr 3 100 -Year Rainfall=7.49" Area [sf) CN Description 3,644 61 }75% Grass cover, Good, HSG B 1,165 98 Paved parking, HSG B 1,526 98 Roofs. HSG i3 6,335 77 Weighted Average 3,644 61 57.52% Pervious Area 2,891 98 42-46% Impervious Area Tc Length Slope Velocity Capacity Description min feet fV— Cs 7.0 Direct Entry, Subcatchment 2 Street L1.12 ds MSE 24 -hr 3 t I0a-Year Rainfall=7.49" Runoff Area=9,335 sf Runoff Volume=2,555 cf Runoff Depth=4.84" Tc=7.0 min N=6'1!98 12 14 16 18 2D 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 fit 64 Time (hours) p Runoff.. U. M•_lfiI] Soils Data 11 IAL 45° Z 20r N x Soil Map- ftshington County, Minnesota 5993 51�P0 §19 991 919991] 999990 3 rkafs scale: 1:49 iF prviGed ati A pairait (8.5" x 11) Mews N o 5 10 m 30 0 as 4D so 12D KV Cotner 4 Edge lxs: UTM Zom L% VAMM Natural Resources Web Soil Survey 11/15/2422 Conservation Service National Cooperative Soil Survey Page 1 of 3 45' 773" H 45' 72TN Map Unit Description: Urban land-Chetek complex, 3 to 15 percent slopes—Washington County, Minnesota Washington County, Minnesota 858C—Urban land-Chetek complex, 3 to 15 percent slopes Map Unit Setting National map unit symbol; 1 t969 Elevation: 800 to 1,950 feet Mean annual precipitation: 28 to 36 inches Mean annual air temperature: 39 to 48 degrees F Frost -free period{ 120 to 170 days Farmland classification: Not prime farmland Map Unit Composition Urban land.- 65 percent Chetek and similar soils: 35 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Urban Land Setting Landform: Outwash plains Landform positron (two-dimensional): Shoulder Drawn -slope shape: Convex Across -slope shape: Convex Interpretive groups Land capability classification (irrigated): None specified Forage suitability group: Not Suited (G090XN024MN) Other vegetative classification: Not Suited (G090XN024MN) Hydric soil rating: No Description of Chetek Setting Landform: Qutwash plains Landfbim position (two-dimensional): Shoulder Down-slope shape: Convex Across -slope shape: Convex Parent material: ®utwash Typical profile Ap - 4 to 6 inches: sandy loam Et - 6 to 18 inches: gravelly sandy loam 2C - 18 to 60 inches: gravelly coarse sand Properties and qualities Slope: 3 to 15 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat excessively drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5,95 inlhr) Depth to water table: More than 80 inches Natural Resources Web Soil Survey 1411$12022 Conservation Service National Cooperative Soil Survey Page 1 of 2 Map Unit Description: Urban land-Chetek complex, 3 to 15 percent slopes—Washington Courrty, Minnesata Frequency of flooding: None Frequency of ponding: None Available water supply, 0 to 60 inches: Low (about 3,4 inches) Interpretive groups Land capability classification (inigated): None specified Land capability class cation (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: F090AY021 WI -Dry Loamy Upland Forage suitability group: Sandy (G090XN022MN) Other vegetative classification: Sandy (G090XN022MN) Hydric soil rating: No Data Source Information Soil Survey Area: Washington County, Minnesota Survey Area Data. Version 18, Sep 6, 2022 r Natural Resources Web Soil Survey 11/15/2022 Conservation Service National Cooperative Soil Survey Page 2 of 2 1"Sh Q z 0. s.lrd"C[ NZ X Z :�i LU Lj tv-, oz I'd I HIygy it N X� � r d Z� Sz 6 Sm II JIM -jz 0 v) 2t-2 5t 1A AR el it < NZQ NZ® Z u u IN N 0 + u z 1"Sh s.lrd"C[ Ulu I'd I HIygy it �q �y � r d t eip$p46yy. pip{y{y+ii i @{ II JIM ills 6 2t-2 5t el Q* 1"Sh Ulu I'd I HIygy it �q �y � r d t eip$p46yy. pip{y{y+ii i @{ II JIM 2t-2 5t el Q* 5 Stantec 733 Marquette Avenue Suite 1000, Minneapolis MSV 55402-2349 November 30, 2022 File: 193800151 Attention: Mr, Eric Johnson City of Oak Park Heights 14168 Oak Park Blvd. Oak Park Height, MN 55082 Reference: 75222 62"1 Street— Utility, Stormwater Review Dear Eric: We have reviewed the Lot Line Adjustment Plan (Utility Plan) dated 11-22-2022 and the Stormwater Management Plan dated 11-29-2022 the property at 15222 62"d Street. 1. The utility plan shows the proposed sewer service connecting to the existing water stub and the proposed water service connecting to the existing sewer stub for Parcel 2. The plan needs to be revised to show the sewer and water services connecting to the appropriate stubs. The contours and drainage features on the utility plan need to be updated to conform to the stormwater management plan design dated 11-29-2022. 2. The stormwater management plan and proposed drainage design is acceptable. Please note that the certificates of survey submitted for the individual lots will need to show grading details in conformance with the proposed drainage plan. If you have any questions or require further information, please do not hesitate to contact me. Regards, VIR Voll, CA Principal Phone: 612-712-2085 Lee-Mann@stantec.com Attachments: Lot Line Adjustment Plan (Utility Plan), Stormwater Management Plan c. file Julie Hultman, Building Official Andrew Kegley, Director of Public Works Scott Richards, City Planner Kevin Sandstrom, City Attorney