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HomeMy WebLinkAbout030-2047-10-100 (2) T. R IX COUNTY _ rift tC . ifitltlOt'MCM 5/5/2017 Larry & Anne Weber 1404 Hilltop Ridge Houlton, WI 54082 RE: Conditional Approval: Land Use Permit, File# LUP-2017-005 Project Location: 27.30.20.510F-10 Project Address: 23 Hilltop Ridge Dear Larry and Anne Weber, Community Development staff have reviewed the Land Use Permit application for the construction of new single-family residence and filling and grading less than 10,000 square feet greater than 40 feet from the slope preservation zone within the Lower St. Croix Riverway Overlay District, Chapter 17.36. The request has been conditionally approved based on the following findings and conditions. • The proposed project meets all applicable setbacks and have been dimensioned on the site plan dated April 30, 2017. The proposed structure will not be readily seen from the River. • The principal structure height will not exceed 35-feet between the average ground elevation and the uppermost point of the structure (excluding chimneys). • A plan was submitted that meets WDNR Technical Standards for Erosion and Sediment Control and includes silt fencing and an aggregate tracking pad. • The undisturbed area identified on the site plan will be managed with the goals of the Riverway District, pursuant to Chapter 17.36 H.8.a. • A construction timeline, maintenance of the proposed storm water device and vegetation management was submitted as an addendum on 5/4/2017. Based o these findings, approval of the Land Use Permit is subject to the following conditions: 1 A pre-construction inspection is required to verify sediment and erosion control \ nstallation per plan prior to any land disturbance activity, excavation and/or soil lacement. The mound and vegetated swale are shall be flagged to avoid disturbance. 2. St. Croix County reserves the right to require additional sediment and erosion control measures to be installed during construction and/or land disturbance activities due to site conditions. 3. A Private Onsite Wastewater Treatment System (POWTS) has been approved (Sanitary Permit #597304) and shall be constructed in accordance with SPS 383 and Chapter 12, St. Croix County Sanitary Ordinance. Phone 715.386.4680 Government Center, 1101 Carmichael Road, Hudson, WI 54016 Fax 715.386.4686 ST CROIX COUNTY 1'mntivn :ate ~'~',:6 ~ ~ •ib rs 4. The storm water management device (vegetated swales) shall be seeded with a native prairie mix submitted with the application; native seed application shall happen after October 15 until freeze up. 5. An affidavit describing the approved storm water management, erosion control, and vegetative management and maintenance shall be recorded within the St. Croix County Register of Deeds within 30 days after construction is completed. 6. Phosphorus fertilizer shall not be used to establish and/or maintain vegetation, unless a soil test confirms phosphorous is needed. 7. A post-construction inspection will be required prior to removing sediment control measures to verify the entire project site has reached a point of 70% perennial vegetative cover. 8. The proposed single family residence shall be earth tone in color. 9. The applicant is responsible for scheduling inspections with Community Development staff. 10. The applicant shall be responsible to secure any other required local, state or federal permit(s) and approval(s) prior to land disturbance activity. 11. Failure to comply with the terms or conditions above may result in the revocation of this permit by the Zoning Administrator according to Chapter 17.30(13). This approval is subject to the conditions listed above; it does not allow for any additional construction, structures, grading, paving, filling or clearing of vegetation beyond the limits of this request. Your information will remain on file at the St. Croix County Community Development Department suite. It is your responsibility to ensure compliance with any other local, state, or federal permitting or regulations, including contacting the Town of St. Joseph and the Wisconsin Department of Natural Resources to inquire if additional permissions are required. This permit is valid for one year, with the possibility of up to two (2) six month extensions if the applicant submits the appropriate permit extension fee and documentation to the Zoning Administrator. A hard copy of the Land Use Permit placard should be submitted to the local Building Inspector upon application for a building permit. The orange placard must be posted on the job-site and visible from public view. Phone 715.386.4680 Government Center, 1101 Carmichael Road, Hudson, W154016 Fax 715.386.4686 i t►on ST. C R ®X COUNTY r~ma iJr. a itFt;t7it~,r'~tion Community Development Department I Please feel free to contact me with any questions or concerns. I am typically available Monday- Friday from 8:00-5:00 PM. If you would like to schedule an inspection, please call the main office so they can direct the next available staff member to accommodate your request as soon as possible; (715) 386-4680. Respectfully, ! C Sarah Droher Land Use Technician II EC: CC: File Enclosure: Site Plan 4/30/2017 i III Phone 715.386.4680 Government Center, 1101 Carmichael Road, Hudson, Wl 54016 Fax 715.386.4686 I P pqG 'J, -Ynr =i f1 ~ aco TO t `1 _ - 1 1 vt c 'vNt p Ji1!1tS iJ( ~r r 6 _d eV~> Ir i r I( o fir) f~ r 1 ~O rig 9 09, ~6s e. 75!g 'i /11 1 - C~ t~~ way o s;1 wz" .,v I r, l CC 1 553, I I Ln i 853. b Z t7l u r ~ _ y ~ N ® Z o ~ ~ o c oB P f o er `e m O .m. m b m ~ o to m n mti Y O ~ ~ 7 '1 '~S A A ~ .mt rfDf ~ N ~ A m C m~ P o ^o m m m _ ° L w r ° ^ h N C i I R r-' ITI =o og m~. m a ac'S 0 UPC P .t H b B 7 O y y rt 0. e^o 0, A IQ e C C ° 01 • a Final submittal 4/30/17 Larry Weber 1401 Hilltop Ridge Houlton, WI 54082 651-336-9903 1 am proposing to build a house with an attached garage at 23 Hilltop Road in the spring of 2017. 1 will be building the home and doing the grading and landscaping. The house and attached garage has a footprint of 2750 square feet and the disturbed area is less than 7500 square feet. The remaining area of the lot will not be disturbed. The soil is HsB for the majority of the lot. A strip along the eastern lot line is OtB. The soil map was included in a previous submittal. The bluffline is an average of 300 to 350 feet from the west property line of the lot. There is no 100 foot setback on this parcel. Vegetation Management Plan for the disturbed area The lot is surrounded by large pines and an additional 24 trees were recently planted down the easterly lot line. No trees will be removed as part of this project. The grading will be minimized to the house area and mound system. The area around the house and the grass swales seeded turf grass. The bioswale will be seeded and maintained as described in the Storm Water Management section below. Erosion and Sediment Control: Erosion and sediment control will be done in accordance with the attached Erosion and Sediment Control Plan and Checklist, as well as with the "Erosion Control for Home Builders" document. Silt fence has been installed as per the plan. All disturbed area will be seeded by September 15, 2017. 1 will be doing the grading, so will be onsite to inspect and maintain the site and to minimize compaction of the bioswale area. Storm Water Management The lot has a gradual slope and stormwater flows towards the southeast corner, where it discharges into a culvert under the road during larger storm events. All runoff from the home and drive will be directed via grass swales to the bioswale. The bioswale will be installed to treat the required runoff volume. The bioswale will overflow and following the existing topography towards the southeast corner of the lot. Runoff Volume for proposed impervious area House and garage 2750 Driveway 1600 Total 4350 square feet Runoff volume = (1.5"/12") x 4350 square feet = 544 cubic feet Page Z of 2 Bioswale Please see the attached site plan and drawing for the bioswale placement and shape. The bioswale will be 12 feet by 46 feet with a depth of 12". This provides a treatment volume of 552 cubic feet. Installation and Maintenance The bioswale will be seeded with a bioswale seed mix from Prairie Nursery in Westfield, Wisconsin. The bioswale vegetation will be established and maintained according to the attached "Seed Mix Establishment Guide" from Prairie Nursery. Affidavit Affidavit will be executed and recorded describing the approved storm water management, erosion and sediment control, and vegetative management plans and maintenance requirements for each with the County Register of Deeds within 30 days after construction is complete. The Storm Water Management Plan was prepared by Anne Weber, who is a licensed professional engineer in the state of Minnesota. Anne Weber 651-208-0178 AnneaveberlS mail.com Professional Engineer 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. Signature: Typed or Printed Name: Anne Weber Date: 4/30/17 License Number: 23288 Page 2 of 2 • 0 Construction Sequencing and Maintenance Weber Permit 5/4/17 Appropriate measures will be taken to design and construct the grass swales and bioswale according to the plan, to stabilize the site and to operate and maintain the bioswale to preserve its intended function. The following addresses the construction sequencing, establishment of vegetation on the site, and long term maintenance. Construction Sequencing • Finish grading to take place approximately two weeks prior to seeding and sodding. • The grass swales and bioswale will be constructed during the finish grading. • The grass swales will be sodded. • The lawn area and bioswale will be seeded by September 15, 2017. The bioswale will be mulched with straw. • The bioswale will be kept offline with a berm protected by silt fence until the bioswale vegetation, lawn and grass swales are established. • The silt fence will remain in place until the lawn, grass swales and bioswale vegetation is established. • An inspection of the grass swales and bioswale will be scheduled prior to removing the silt fence. Maintenance Plan Grass swales will be mowed with the lawn. Grass will be kept in healthy condition. Bioswale will be mowed according to the guidance from the seed supplier, which was included in our last submittal, in order to establish the vegetation and minimize weeds. The following is a summary of the recommendation for mowing from this document: In year one, mow three times to a height of 4-6 inches. In the fall of first growing season, maintain to 8-10 inches. In year two mow in the spring and again to 12 inches when the weeds are in full flower, before they seed. Sediment and debris will be removed as necessary. s I: i x 1s e Just prior to planting, the soil should be prepared according to the type' of planting method used. Seeding by hand (hand broadcasting) or mechanically with a Brillion drop seeder requires a well-tilled, finely' r graded surface. Seeding with a no-till or slit seeders (Truax, Tye, John s Deere) requires a smooth, level soil surface, but little or no tilling. s 4, 'A final pre-planting tip. If planting in late spring or early summer, you - x 1 Mt will reduce the weed density by applying a glyphosate herbicide to the 4.0 site when the majority of the weeds are two to three inches tall. Wait S 10 days, till the soil only one inch down (tilling deeper will only bring up `jt r more weed seeds) and plant immediately. If you would like to avoid using herbicides, till the soil down one inch five to seven days after the first r heavy spring rain (before green-up) and plant immediately. This will kill 3b r 1. the weeds after they germinate but before they emerge. 0t , y: fXI~,: eec 8 r`'`an. "TM .»..~r - "kJa~ rot tt x w l.rmr WHEN TO SEED 'nce Fall: Septem through soil freeze-up. Fall plantings are "dormant Flat-Han j) I aintena seedin m which the seed over-winters in the soil and germinates the following spring. In general, wildflower seeds have increased germination YEAR ONE in spring after a fall planting. Fall planting takes advantage of cold, moist First year weed control is required to reduce the competition between winter conditions, breaking seed dormancies and promoting earlier germi- weeds and prairie seedlings for water, light, and space. Seeded areas nation and faster seedling establishment the following spring. This early should be mowed approximately three times during the first growing seedling establishment is especially critical on sand, which heats up and season to a height of four to six inches when the majority of weeds are in dries out quickly in spring, as well as on clay, which becomes rock-hard flower or when weeds reach a height of 10 to 12 inches. As a general rule when it dries out and restricts root development. Wet clay soils are also of thumb, anything taller than 10 inches or in flower is a weed. Mowing difficult to work and plant during moist spring conditions. this high will cut off the taller weeds while missing the shorter prairie Spring: March through June 30. In general, warm season grasses - perennials. Use a string trimmer or weed eater on small areas and an off set flail mower on larger areas. Flail mowers, as opposed to rotary mow- Little Bluestem (p.55), Big Bluestem (p.52), and Indiangrass (p.56), which do most of their growing during the warm summer months - show higher ers, will chop up the weeds as they are cut instead of laying the cut weeds germination rates when planted in late spring/early summer, compared to on top of, and possibly smothering, the prairie seedlings. Mow before the weeds set seed to prevent further soil contamination. Do not fall seedings. Either time period can be successful in most conditions. pull weeds in a first year seeded area as this will disturb the developing SEEDING METHODS seedlings and ungerminated seed. In the fall of the first growing season, maintain the vegetation at eight to 10 inches through the winter to insu- Hand broadcasting seed. Start with afreshly-tilled seed bed free of late the developing prairie seedlings and to help prevent frost heaving. rocks or soil clumps greater than two inches in diameter. Mix all of the seed (including the nurse crop) with slightly dampened sawdust, sand or YEAR TWO peat moss (approximately one pound seed to four bushel baskets of inert material). Divide the mixture in half and hand broadcast one half of the During the spring of the second year, mow the standing residual vegeta- tion to the ground in early spring and rake off the cuttings. If biennial seed evenly over your site. Hand broadcast the second half of the seed weeds over the site walking perpendicular to the initial direction to ensure an such as Sweet Clover are a problem, mow again to approximately even distribution. 12 inches when the majority of weeds are in full flower but before they make seed. Cover the seed with 1 /8 to 1 /4 inch of soil with a rake or drag. Firm the seed in the soil by rolling the site with a cultipacker, roller, truck or tractor tires. WHAT TO EXPECT DURING THE FIRST THREE YEARS Mulch the designated planting area with approximately 1 /2 inch of weed Prairie seeds will often germinate over a period of two to three years. free straw. This mulch will help to control erosion on steep slopes and will Some will appear the first year, while others will come up in the second help to keep sand or clay soils moist for a longer period. If you're working and even third year after the initial planting. Most perennial prairie flowers on a very steep slope, cover the mulched area with a photo-degradable and grasses will not flower until their third or fourth full growing season. erosion control mesh with a 112 inch opening to allow for unimpeded Patience is a virtue when establishing a prairie. Please follow these wildflower seedling development. Secure the mesh with staples placed at directions carefully and give your prairie time to develop. one to two foot intervals. Perennial prairie plants devote most of their efforts in the first few years Mechanical planting of prairie seed. On areas greater than one acre, it to developing their famous root systems. They will not be readily apparent is more efficient to plant using a broadcast or a no-till seeder. The broadcast in the first year, with little visible above-ground growth. However, they planter spreads the seed over the soil whereas the no-till seeders plant the are steadily building their "root bank accounts" to sustain them in future seed in rows by opening slits in the soil. The broadcast seeder we recom- years. The deep roots of the prairie flowers and grasses give them long- mend is the Brillion double box agricultural model, typically used to seed term staying power that allows them to squeeze out annual and biennial alfalfa and grass mixtures but equipped with native grass bristle brushes weeds, and return yearly for decades. in the larger front box rather than the standard steel wire agitators. No-till seeders commonly used include Truax, Tye or John Deere. 800-476-9453 PRAIRIE NURSERY. COM 61 Seed Mix/Prairlestablishment Condensed Ake Site Preparation Methods A prairie is a long-term investment requiring careful To prepare your site for planting, you must first remove the existing planning. Since a variety of site conditions will be vegetation. In most cases, the existing vegetation on your site will consist of perennial and annual weeds unless you are fortunate to have a native encountered when seeding an area, it is difficult to write prairie remnant in your yard! Existing weeds will compete with prairie a standard "recipe" for site preparation and planting seeds for nutrients, moisture, and sunlight. Although it is nearly impossible to remove all annual weed seeds from the seedbank (Ragweed, Lamb's procedures. The following guidelines are based on our Quarters, Pigweed, Velvetleaf), it is crucial to kill and/or remove perennial experience. I f you have any questions, please call or weeds and rhizomes before planting. Perennial weeds such as Quackgrass, Bromegrass, and Red Clover will inhibit the growth of your prairie. Site e-mail us. We will do our best to help ensure the success preparation options vary according to the vegetation type that you are of your prairie planting. converting to a prairie planting. OPTIONS FOR PREPARING AN EXISTING LAWN SITE Smothering. Cover the site with either black plastic, old carpet, plywood, jet d M( e ec o cardboard, or a thick layer of leaves or newspapers. Leave in place for a full growing season and remove in fall or the following spring. Plant into a SITE SELECTION prepared bed (seethe specifics under "Final Seed and Plant Bed Preparation"). Choose a sunny, open area that will receive at least one half day of full Sod-Cutting. Remove the top two to three inches of grass and soil using sun, unless you are using our Woodland Edge/Savanna Mix (p.17). a sod-cutter. Till the cleared area lightly and plant into a prepared bed. If you are planning to use fire as a long term management tool, position the Cultivating. Cultivate the planting site two to three times at one week planting to utilize natural fire-breaks such as driveways, sidewalks, lawns, intervals. If perennial weeds are present, cultivate all growing season long, or streams. Keep the planting clear of conifers and other trees that are every two to three weeks and plant into a prepared bed. easily damaged by fire. If natural fire breaks are unavailable, plant a 5 -10 foot No Mow Lawn Mix (p.72) buffer around your planting. Herbiciding. Apply a glyphosate herbicide when the lawn is actively growing (in fall or spring). Till lightly when the grass has turned brown SOIL TYPE/SOIL MOISTURE DETERMINATION and plant into a prepared bed. Prairie wildflowers and grasses will tolerate a variety of soils and OPTIONS FOR PREPARING AN OLD FIELD SITE moisture levels. It is important, however, to determine the general soil type and soil moisture for each area that you intend to plant, in Herbiciding. Mow and rake or burn the existing vegetation to the ground order to select the plants best adapted to your soil conditions. in late fall or early spring. Apply a glyphosate herbicide three times (mid- spring, mid-summer, early fall). When all the vegetation is dead, plant into Soils can be generally classified as sands, clays, and loams. Sandy a prepared bed. or "light"soils are comprised of large, loosely packed, soil particles Cultivating. Mow and rake or burn the existing vegetation to the ground that drain easily and are easy to work. Sandy soils also tend to be low in nutrients and slightly acidic. Clays or "heavy" soils consist of in late fall or early spring. Cultivate to a depth of four to five inches every small, tightly packed, soil particles that drain poorly and are difficult two to three weeks from spring through fall. Before planting, make sure to work. They can, however, be rich in nutrients and very productive, all the existing weeds have been killed. Plant in fall or the following spring Loams or "mesic" soils, the intermediate soil type between sand and into a prepared bed. clay, are usually very fertile and are composed of a variety of different OPTIONS FOR PREPARING EXISTING sized soil particles.This particle diversity provides good moisture FIELDS OF CORN, SOYBEANS OR SMALL GRAINS holding capacity and drainage, which is an excellent medium for most prairie plants. Before planting, test the soil for agri-chemicals such as Atrazine, which, if present, will kill germinating prairie wildflower seedlings. Determining your soil type. Rub a small amount of moist soil between your thumb and fingers. A clay soil will be slick and smooth Herbiciding. Apply a glyphosate herbicide. In the Spring, spray once in while a sandy soil will be gritty and fall apart easily. A loamy soil will mid to late spring, wait 10 days and plant into a prepared seedbed. In feel gritty, although not as gritty as sand, and stick together easier the Fall, spray once after the crop is removed. If weedy vegetation is still than sand but not as tenaciously as clay. In addition, as a loamy soil actively growing, wait 10 days and plant into a prepared bed. dries, it will have the texture of flour. Cultivating. If perennial weeds are present, cultivate at a depth of four to Determining soil moisture. The soil moisture content varies accord- five inches every two to three weeks from spring through fall. Plant in fall ing to the soil type and location of the soil relative to the ground- or the following spring into a prepared bed. water level. Moist soils occur relatively close to groundwater levels and dry and medium are relatively far from them. Moist soils could be sands, clays, or loams, which hold water throughout the growing 's 'Mt season. Drysoils include sandy soils, or soils mixed with gravel which Ilk rarely accumulate standing water, even after a heavy rain. Medium„ q~~~ ormesicsoils include clays and loams, which, unlike the dry soils, may accumulate standing water following a heavy rain for one to three days depending on the amount and intensity of the rainfall. 60 PRAIRIENURSERY.COM 800-476-9453 Sarah Droher From: Anne Weber <anneweberl5@gmail.com> Sent: Thursday, May 4, 2017 3:53 PM To: Sarah Droher Cc: Tamara Wittmer Subject: Re: FW: Weber permit 1110 *l,it,tlt :iPta r .Jc;l~'.k„~ 5;6111 I7-., ~,3ilY;t2 tliit:a t'.li~'13 thw ilKil .`Z!',ittlYi° k &,Lt prior it) "i hc<~. ih(: htiNrl all d 'rrR"3S `.A4£Elcti. L ill I,k:cl) file gift,-lW', if Ofrline Llrltil the l 1wil wid grass stikalcs av C9stahlisheci. 1 he silt rence will renlairl in pki e ulltii "er- tl ill« ins ` eL"claled, t_t1)ce tllr {l l~~alc is online. twc can put coltlpost lokrs £St t11c, poiirt `~a•l)ere the f ims ,,-wales {i>c.}lartre into the rain garde n, h ~~e c{)t~nrittc~i itl doiit,, [I-J" l: Id y" Fil On Thu, May 4, 2017 at 3:30 PM, Sarah Droher <Sarah.Drohernco.saint-croix.wi.us> wrote: Anne, Please see below from Tammy, again please note that she is at a meeting offsite and emailing while she can pertaining to the stromwater. I -lon't think this addresses lio> and «hen the sviaies 1N 111 he con irticted and hmti, the nev\ ll seeded areas ~ ill protected frorn erosion until sc°edinp is establislied, S""C end. N 'c Historic alk Clon't "fllo\~ >eedint, ofnlin i 11c C(HIC(W.il ill lio E\ ni l"l 'a I7€3 (1I ' r20'1h-! tii clifi tip) In ilih:' € ios,=l;,,lfv { hti ruin -i{rldeii) m d ci}V~er ti-IC `7 C C~ i>t:'S! Thank ym,. Stt rtt v j)rv6 er (715) 386-4680 Land Use Technician 1 Sarah Droher From: Sarah Droher Sent: Thursday, May 4, 2017 3:30 PM To: 'Anne Weber' Cc: Tamara Wittmer Subject: RE: FW: Weber permit Anne, Please see below from Tammy, again please note that she is at a meeting offsite and emailing while she can pertaining to the stromwater. I don't think this addresses ho% and -,hen thy; swales ovill be cot) tRtc(cd and hw,\ the rie ly seeded areas gill be protected lronn crosion until seeding is established. Second. tVe historically don't allo\, seedin4- ol'rain gardens. 11 ° v~~: wr a III 110y 11-ILI i1 ,,ea 3itt~ rit ? h) cild ter, iil tiac Bl ; y,de (al:, rain ~_,a r&n) and covcr the s,ccd bed Thank you, SarR.~i, j7roG'ier (715) 386-4680 Land Use Technician Community Development Department ST. ROIX QIUN'V ' From: Anne Weber [mailto:anneweberl5@gmail.com] Sent: Thursday, May 4, 2017 2:16 PM To: Sarah Droher <Sarah.Droher@co.saint-croix.wi.us>; Tamara Wittmer <Tamara.Wittmer@co.saint-croix.wi.us> Subject: Re: FW: Weber permit Here is the document and I cut and pasted the info below from it. Any idea when the permit will be ready? Post-Planting Maintenance Year one First year weed control is required to reduce the competition between weeds and prairie seedlings for water, light, and space. Seeded areas should be mowed approximately three times during the first growing season to a height of four to six inches when the majority of weeds are in flower or when weeds reach a height of 10 to 12 inches. As a general rule of thumb, anything taller than 10 inches or in flower is a weed. Mowing this high will cut off the taller weeds while missing the shorter prairie 1 perennials. Use a string trimmer or weed eater on small areas and an off set flail mower on larger areas. Flail mowers, as opposed to rotary mowers, will chop up the weeds as they are cut instead of laying the cut weeds on top of, and possibly smothering, the prairie seedlings. Mow before the weeds set seed to prevent further soil contamination. Do not pull weeds in a first year seeded area as this will disturb the developing seedlings and ungerminated seed. In the fall of the first growing season, maintain the vegetation at eight to 10 inches through the winter to insulate the developing prairie seedlings and to help prevent frost heaving. Year two During the spring of the second year, mow the standing residual vegetation to the ground in early spring and rake off the cuttings. If biennial weeds such as Sweet Clover are a problem, mow again to approximately 12 inches when the majority of weeds are in full flower but before they make seed. What to Expect During the First Three Years Prairie seeds will often germinate over a period of two to three years. Some will appear the first year, while others will come up in the second and even third year after the initial planting. Most perennial prairie flowers and grasses will not flower until their third or fourth full growing season. Patience is a virtue when establishing a prairie. Please follow these directions carefully and give your prairie time to develop. Perennial prairie plants devote most of their efforts in the first few years to developing their famous root systems. They will not be readily apparent in the first year, with little visible above-ground growth. However, they are steadily building their "root bank accounts" to sustain them in future years. The deep roots of the prairie flowers and grasses give them longterm staying power that allows them to squeeze out annual and biennial weeds, and return yearly for decades. On Thu, May 4, 2017 at 2:08 PM, Anne Weber <anneweberl5 a gmail.com> wrote: Here are the responses to these items. The document that we provided for the bioswale should address maintenance of the bioswale. I have attached it to this email. We referred to this document in the narrative and said that we would operate and maintain according to its recommendations. I have addressed each item below. Does this response cover it our do you need us to send something else in? 1. Will construction of the swales/bioswale be done in phases? a. timeline for Swale construction and vegetation establishment b. Will they be kept offline until vegetation is established? The swales will be graded and seeded with the rest of the lawn before September 15th. The bioswale will be seeded at the same time with the bioswale mix. The bioswale will be kept offline until the vegetation is established. 2 2. Swales will need to be inspected before silt fence is removed OK we will request an inspection for the silt fence is removed. 3. Will the swales be mowed? The turf swales around the house will be mowed. The bioswale will be maintained as per the material we provided in our submittal (see attached). I believe the recommendation in this document is to mow to 10" in the spring and the fall. 4. Overall operation and maintenance plan for swales and bioswale - The grass swales are part of turf grass lawn. We will insure that the turf grass is healthy and mow with the lawn. The bioswale will be operated and maintained according to the document that we provided (see attached). It lays out the maintenance required per year of establishment. On Thu, May 4, 2017 at 1:19 PM, Sarah Droher <Sarah.Drohernco.saint-croix.wi.us> wrote: Good afternoon Anne, Please see stormwater staff bclo . Are you able to address these items`? 't'hank you, Sar ,A- ProAzr (715) 386-4680 Land Use Technician Community Development Department S:1_1 R C) (IX tdr ~3 From: Tamara Wittmer Sent: Thursday, May 4, 2017 12:55 PM To: Sarah Droher <Sarah.Droher a,co.saint-croix.wi.us> Subject: Weber permit Hi Sarah- It would be nice if they addressed these items in the plans / 0&M plans before they begin construction 1. Will construction of the swales/bioswale be done in phases? a. timeline for swale construction and vegetation establishment b. Will they be kept offline until vegetation is established? 2. Swales will need to be inspected before silt fence is removed 3. Will the swales be mowed? 4. Overall operation and maintenance plan for swales and bioswale Tamara Wittmer, r Cr nservattic r 715-531-1906 C 715-760-1991 4 Sarah Droher From: Sarah Droher Sent: Monday, April 3, 2017 1:43 PM To: anneweberl5@gmail.com' Subject: stormwater and erosion control plans Hello, Larry dropped off additional information on Friday regarding the Land Use Permit application for a new single family dwelling in the Lower St. Croix Riverway District. The Riverway Ordinance requires information to be submitted on how the proposed stormwater management will meet or exceed DNR stormwater best management practices. As you are proposing a rain garden, I think it would be beneficial to take a look at the following link regarding design, construction and maintenance: htcinr,wi.yovtoi~Stormwaterjrainyarden/. These things must be submitted in the application. We are also concerned with the overall size of the proposed rain garden and would suggest the garden to be broke up into two individual sites rather than one large one. Most of the publications referenced a 300 square foot maximum size, the proposed garden is over twice this recommendation. The system is sized for an infiltration rate of .6 inches/hour in a 48 hour period. The ordinance requires stormwater to be designed for 24 hour events. In addition the site plan shows an 'undisturbed area' south of the proposed house location, will this area be restored with native vegetation or continue to be used for agricultural purposes? Lastly, the Riverway Ordinance requires all bluffline setbacks to be mapped. The bluffline setback is 100' and should be mapped where that location is on the property line. I will be away from the office the next two days at a training, and so if you have any stormwater specific questions please contact Tammy Wittmer. I have also copied her on this email. Thank you, 60,rXA, J) rc,A er (715) 386-4680 Land Use Technician Community Development Department S-r-. CR0 lX L9NTT Revised submittal 4/3/17 Larry Weber 1401 Hilltop Ridge Houlton, WI 54082 651-336-9903 1 am proposing to build a house with an attached garage at 23 Hilltop Road in the spring of 2017. 1 will be building the home and doing the grading and landscaping. The house and attached garage has a footprint of 2852 square feet and the disturbed area is less than 7500 square feet. The lot is currently a soybean field, which was harvested last fall, with large pines surrounding the perimeter. An additional 24 trees were recently planted down the easterly lot line and no trees will be removed as part of this project. The grading will be minimized to the house area and mound system. The area around the house will be turf grass and the remaining area, which was farmed up until 2016, will be allowed to return to native vegetation. The soil is HsB for the majority of the lot. A strip along the eastern lot line is OtB. The soil map is included in the additional information that I am submitting. Stormwater Management: The lot has a gradual slope and stormwater flows towards the southeast corner, where it discharges into a culvert under the road during larger storm events. All runoff from the home and drive will be directed to follow the existing drainage pattern to the southeast corner. Runoff from the impervious surfaces will travel across 250 feet of turf grass and native vegetation. Also enclosed with this submittal is a model of the existing and proposed conditions. The proposed conditions reduce the runoff volume from 1652 cubic feet to 831 cubic feet, a reduction of 49.7%. There is no need for a BMP to be constructed to reduce runoff. The bluffline is an average of 300 to 350 feet from the west property line of the lot. There is no 100 foot setback on this parcel. Erosion and Sediment Control: Silt fence will be installed prior to work as shown in the site plan. The yard will be seeded in the fall of 2017 upon completion of landscaping. I will be doing the grading, so will be onsite to inspect and maintain the silt fence, also to minimize compaction of the proposed rain garden area. The Stormwater Management and Erosion and Sediment Control Plans were prepared by Anne Weber, who is a licensed professional engineer in the state of Minnesota. Anne Weber 651-208-0178 Anneweber15 cz gmail.corn Professional Engineer I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly Lic nsed Professional Engineer under the laws of the state of Minnesota. signature: tiy~ f Typed or Printed Name: Anne Weber Date: 4/3/17 License Number: 23288 i~ ~ 4 t `C7rQ 3`~.~ i _ _ 3Dfl~,5a Rock ~ _ ~ x ~ d ,fin. Jam' ro Qju..f.r h p _ ~a ,t y~n• jf~ k ~ z 1 x Lot bo 1 ,n f C~ ~ ~~~v~v~~.~~~~►5~-~~~) Eft 5~ S , n J,:~ 130, Sarah Droher From: Anne Weber <anneweber1 S@gmail.com> Sent: Sunday, April 30, 2017 6:57 PM To: Tamara Wittmer Cc: Sarah Droher Subject: Re: Riverway Land Use Permit Attachments: Narrative.pdf; ESC 1.pdf; ESC 2.pdf; site plan and drawing.pdf; seed-mix-establishment- condensed.pdf Thank you for getting back to us with this information. Attached is our submittal, which we believe addresses all of the requested information. The submittal includes a narrative, erosion and sediment control plan, site plan, bioswale drawing and seed mix establishment guide. We appreciate your consideration of our application and look forward to hearing from you as soon as possible. We also need a copy of our septic permit for the building permit application. This was submitted by ACE Soil & Site Evaluations. I can be reached via email or at 651-208-0178 and Larry's number is 651-336-9903. Thank you, Anne On Fri, Apr 28, 2017 at 8:56 PM, Tamara Wittmer <Tamara.Wittmer yr co.saint-croix.wi.us> wrote: Hi Anne- I apologize for just getting back to you. Unfortunately, Sarah and I were unable to connect today. Below is a summary of our conversation, feel free to add to the list if I missed anything. 1. Erosion control guide (documents attached) 2. Option to use vegetative buffer to treat stormwater runoff (below are two options for you to consider for your site) a. Attached is a guidance from the Wisconsin Stormwater Manual for filter strips (this is a good guidance to use and design from) b. Also attached is the Wisconsin DNR Vegetated Swale Standard (another good resource) i 3. Affidavit requirement'arah) 4. Sample affidavit (Sarah) 5. Other Permit requirements arah) a. Ex. Vegetation and erosion control Thanks, -Tammy -Tammy From: Anne Weber [mailto:anneweberl5@gmail.com] Sent: Thursday, April 27, 2017 5:23 PM To: Tamara Wittmer <Tamara.Wittmer@co.saint-croix.wi.us> Subject: Re: Riverway Land Use Permit Also left a message. 651 208 0178 On Thu, Apr 27, 2017 at 4:22 PM Tamara Wittmer <"I'amara.Wittmern.co.saint-croix.wi.us> wrote: Hi Anne- I tried calling the number listed below, but it's the wrong number. Lvlould you want to trying calling nee at 715-531-1906? -Tammy 2 0 • From: Anne Weber [mailto:anneweberl5@gmail.com] Sent: Wednesday, April 26, 2017 6:37 PM To: Tamara Wittmer <TamaraMitt mer@co.saint-croix.wi.us> Subject: Re: Riverway Land Use Permit Yes I am available from 10 -2 and 2:30 to 4:30. 651-208-1078 On Wed, Apr 26, 2017 at 5:54 PM Tamara Wittmer <Tamara.Wittmer(ii . int-croix.wi.us> wrote: ,cosa Hi- I'm working with Sarah on review of your LUP application. Would you have time tomorrow (via phone) to discuss your project? Thanks, Tamara Wittmer, Land T: 715-531-1906 715-760-1991 3 Stand rd EroSiorl Control Plan for 1- & 2-Family Dwelling Construction Sites According to Chapters Comm 20 b- 21 of the Wisconsin Uniform Dwelling Code, soil erosion control information needs to be included on the plot plan which is submitted and approved prior to the issuance of building permits for 1- & 2-family dwelling units in those jurisdictions where the soil erosion control provisions of the Uniform Dwelling Code are enforced. This Standard Erosion Control Plan is provided to assist in meeting this requirement. Instructions: 1. Complete this plan by filling in requested information, completing the site diagram and marking appropriate boxes on the inside of this form. 2. In completing the site diagram, give consideration to potential erosion that may occur before, during, and after grading. Water runoff patterns can change significantly as a site is reshaped. 3. Submit this plan at the time of building permit application. PROJECT LOCATION Please indicate north BUILDER Ct ,J OWNER L 6 T T4 by completing the arrow. WORKSHEET COMPLETED BYE,! DATE 3t~ 1, -7 SITE DIAGRAM Scale: 1 inch = feet EROSION - - CONTROL PLAN LEGEND PROPERTY LINE EXISTING -O 'DRAINAGE TD TEMPORARY DIVERSION - FINISHED DRAINAGE _ LIMITS OF i GRADING - - SILT FENCE STRAW BALES GRAVEL VEGETATION SPECIFICATION TREE PRESERVATION STOCKPILED ( k 'j_ w m EROSION CONTROL KLAN CHECKLIST I-- M Check (V) appropriate boxes below, and complete the site diagram G Q with necessary information. ~ H o a V z Site Characteristics X North arrow, scale, and site boundary. Indicate and name adjacent streets or roadways. ❑ Location of existing drainageways, streams, rivers, lakes, wetlands or wells. 3~ Location of storm sewer inlets. Location of existing and proposed buildings and paved areas. X The disturbed area on the lot. X Approximate gradient and direction of slopes before grading operations. W Approximate gradient and direction of slopes after grading operations. ❑ Overland runoff (sheet flow) coming onto the site from adjacent areas. Erosion Control Practices ❑ Location of temporary soil storage piles. Note: Soil storage piles should be placed behind a sediment fence, a 10 foot wide vegetative strip, or should be covered with a tarp or more than 25 feet from any downslope road or drainageway. Location of access drive(s). Note: Access drive should have 2 to 3 inch aggregate stone laid at least 7 feet wide and 6 inches thick. Drives should extend from the roadway 50 feet or to the house foundation (whichever is less). ® Location of sediment controls (filter fabric fence, straw bale fence or 10-foot-wide vegetative strip) that will prevent eroded soil from leaving the site. ❑ Location of sediment barriers around on-site storm sewer inlets. ❑ X Location of diversions. Note: Although not specifically required by code, it is recommended that concen- trated flow (drainageways) be diverted (re-directed) around disturbed areas. Overland runoff (sheet flow)from adjacent areas greater than 10,000 sq. ft. should also be diverted around disturbed areas- 'M Location of practices that will be applied to control erosion on steep slopes (greater than 12% grade). Note: Such practices include maintaining existing vegetation, placement of additional sediment fences, diversions, and re-vegetation by sodding or seeding with use of erosion control mats. t❑ Location of practices that will control erosion on areas of concentrated runoff flow. Note: Unstabilized drainageways, ditches, diversions, and inlets should be protected from erosion through use of such practices as in-channel fabric or straw bale barriers, erosion control mats, staked sod, and rock rip-rap. When used, a given in-channel barrier should not receive drainage from more than two acres of unpaved area, or one acre of paved area. In-channel practices should not be installed in perennial streams (streams with year round flow). ❑ Location of other planned practices not already noted. W 0 0 J m ® V c Indicate management strategy by checking the appropriate box. ii Q 0 Z Management Strategies Temporary stabilization of disturbed areas. Note: It is recommended that disturbed areas and soil piles left inactive for extended periods of time be stabilized by seeding (between April 1 and September 15), or by other cover, such as tarping or mulching. Permanent stabilization of site by re-vegetation or other means as soon as possible (lawn establishment). • Indicate re-vegetation method: 'Seed ® Sod ® Other • Expected date of permanent re-vegetation: SA 9 /I5 -7 • Re-vegetation responsibility of: X1 Builder ❑ Owner/Buyer • Is temporary seeding or mulching planned if site is not seeded by Sept. 15 or sodded by Nov. 15? Yes [J No 7 use of downspout and/or sump pump outlet extensions. Note: It is recommended that flow from downspouts and sump pump outlets be routed through plastic drainage pipe to stable areas such as established sod or pavement X Trapping sediment during de-watering operations. Note: Sediment-laden discharge water from pumping operations should be ponded behind a sediment barrier until most of the sediment settles out. Proper disposal of building material waste so that pollutants and debris are not carried off-site by wind or water. Maintenance of erosion control practices. • Sediment will be removed from behind sediment fences and barriers before it reaches a depth that is equal to half the height o f the barrier. • Breaks and gaps in sediment fences and barriers will be repaired imme- diately. Decomposing straw bales will be replaced (typical bale life is three months). • All sediment that moves off-site due to construction activity will be cleaned up before the end of the same workday. • All sediment that moves off-site due to storm events will be cleaned up before the end of the next workday. • Access drives will be maintained throughout construction. • All installed erosion control practices will be maintained until the disturbed areas they protect are stabilized. (~o~~ -z11 30q,59~ fl 1~'~y R oat Y 1 \ s+ Dry 0 CC) G y r~ of r3?i v ~J U ct ~-u r 4&2~` 0 r r • Ror-K S,14 ~ er~c~Z- ~rvt TO ~r f = 5O Ct k '2 r I 4, f ~ i r .ti t l 7 Swct, j 310 ~0.J2 i 9 C) ~s i .9 3 ~n L, ul# s W y X53 0 Y I y ~ Receive,) Revised submittal 3/31/17 MAR 3 1 Larry Weber -OMMUNrry pE OUN7Y 1401 Hilltop Ridge LOPIIAEW Houlton, WI 54082 651-336-9903 1 am proposing to build a house with an attached garage at 23 Hilltop Road in the spring of 2017. 1 will be building the home and doing the grading and landscaping. The house and attached garage has a footprint of 2852 square feet and the disturbed area is less than 7500 square feet. The lot is currently a soybean field with large pines surrounding the perimeter. An additional 24 trees were recently planted down the easterly lot line and no trees will be removed as part of this project. The grading will be minimized to the house area, mound system and rain garden. The soil is HsB for the majority of the lot. A strip along the eastern lot line is OtB. The soil map is included in the additional information that I am submitting. Stormwater Management: The lot has a gradual slope and stormwater flows towards the southeast corner, where it discharges into a culvert under the road during larger storm events. All runoff from the home and drive will be directed to follow the existing drainage pattern to the southeast corner. Flow from the proposed impervious areas including the existing driveway, house and future pole building will be directed towards a rain garden as shown on the plan. The rain garden is sized to handle the flow from the house, existing driveway and future pole building. The calculations are included in this submittal. Overflow from this rain garden will follow the existing drainage pattern to the culvert on the adjacent lot, which I also own. Please see the enclosed site plan and rain garden sizing calculations. Landscaping rock will be placed around the perimeter of the home. Erosion and Sediment Control: Silt fence will be installed prior to work as shown in the site plan. The yard will be seeded in the fall of 2017 upon completion of landscaping. I will be doing the grading, so will be onsite to inspect and maintain the silt fence, also to minimize compaction of the proposed rain garden area. The Stormwater Management and Erosion and Sediment Control Plans were prepared by Anne Weber, who is a licensed professional engineer in the state of Minnesota. Anne Weber 651-208-0178 Professional Engineer I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a dull -Licensed Professional Engineer under the laws of the state of Minnesota. Signature: 4ya"t1 Typed or Printed Name: Anne Weber Date: 3/31/17 License Number: 23288 d L.. C T r L E co iv. E `q w ,y ~ S +-,'t.,L.?'.~`~+"y'~t~~•.~ t t,, Ij a0 mom r. tm r•- ' ~ ~t W a ~S f i C L~vt. ion/S iO(L MW E ~z (n P:VWIOv S /V-JEA HOME C9 AV-4(- 2 5:1 X t S-rt U pRI.CwA~ ~ 00 ~t NLIE -L.DvL (Fvr,~ 1'5 5oi5z t 4E tR E"t> ~vr/c~ VOt_vM£ {Z~t~,c~TtU,J 'FY2~N\ V~~ER-+~~ S~~lFC i I ~ OdE~t c ~F ~r'f I E N~lL'C2Pc~tO~ (2."'E O JO I,J N i x~.s pa woa,J~ -t tMK 49 MA ~Imvm wxmcerc Lama- FIT I ~ i R.At~ G~ss...De~ Area ~l-t- AAk,,Lt mvM De?-tr1 ;2. q r- -r a G N7-OE"j o Y. ~ , x 2-a t =Soy i i i 1r{i t I I 1 I iF S I i 3 I t -top R i f j ~ct$}try ~ ► C*r ut Ror e t ~ i t ~ ~ Nose ~ F u rq ` `8~tr, I cc U;161nG - pp~ t ~j --t- M7 \P t Rcea. Jy { ` P9 I tP ( 309, IbS R .l uzr Ro cK i 1 "o~C7 L n Ar> 6wl, er uKWI a ~ }500 sa P. ,\et I l o+ci Fll :Cmpervxoas 5 52, sq 50 AML m in u, x LO m to m x ca :G J Z ~ P- ~ J N IS Ai8:K)UVH G 01 x Ct1 C7 1S *~f S m 4? 1 mat tf~ x } t S E - iii a ~ ~ L _ "-p90 68 4 y A C lp - O cv SLmC n~ ~ ~Qm a 00 ~ „ CN4 rv Sarah Droher From: Sarah Droher Sent: Monday, March 27, 2017 10:31 AM To: 'anneweberl5@gmail.com' Subject: land use permit submittal Attachments: surveyors.pdf; Rive rway_stormwater.pdf Good morning Anne, I am reviewing your Land Use Permit application for the construction of a new home in the Lower St. Croix Riverway District. For the construction or modification of principal structures in this district, storm water management and erosion and sediment control plans must be prepared by a registered landscape architect, professional soil scientist, professional engineer or certified storm water professional. This is a requirement of the St. Croix Countv Lower St. Croix River wa-y t verl~.y__Di riot, please see the attached document regarding these requirements. I have also attached a list of surveyors/engineers that commonly work in St. Croix County that may be able to complete this work for you. The storm water and erosion control plan should include a detailed site map with the proposed hose, driveway, septic area, well, storm water areas and setback areas. The storm water must be designed to infiltration 100% of the proposed impervious surface development storm water volume for the site for a 1.5-inch rainfall event and meet Wisconsin DNR standards (these requirements are listed in the first attachment). Lastly, just so you are aware, all storm water plans require an affidavit to be recorded with the St. Croix County Register of Deeds to notify future land owners of the storm water practices on the property. This is typically a permit requirement within 30 days of approval and requires a $30 recording fee with the Register of Deeds. The county has a few mapping links available which you can overlay the Riverway Zoning: http: stcroixcowi.wgxtreme.corn There is also a mapping app available to view slopes: l tt-p~gsccctld_maps.arcgis.com app- webappviewer/index_html?id=b721791727754d029351b625d85e279f Please let me know if you have any additional questions. Thank you, >xrAA Pr44r (715) 386-4680 Land. Use Technician Community Development Department S-r; ROIX t4tlN-I-Y i 1 ,1XC UNT LAND USE PERMIT File#: ST. CRO A P P L I CATI QN', `„!y~ Office Use Only C t,~ ~ Revised May 2016 Property Owner: Zc1Y'rV 12,~~',/' ~ .~1y3i✓ i,I Contractor/Agent: Mailing Address: ) C //iPk~p f Mailing Address: Daytime Phone: (rte)3~ _ Daytime Phone: ( )vY►'1-~, Cell: ( ) Cell: ( ) 1 r^ t E-mail: l- h h e, 1) e 1 01 c,, to rn E-mail: SITE INFORMATION Site Address: t1iia w Z e;,4 t;~ 56,ilemi'yl l~ Act J Property Location: 1/4, 1/4, Sec. )7, T. '30 N., R. (O W., Town of • 5 7 r-z~l) Computer r'i3C, -20V7 - /0 -_f &0 Parcel#: C3 C1 Zoning District (Check one): 0 AG. 0 AG. II lR RURAL RES. 0 RESIDENTIAL 0 COMMERCIAL 0 INDUSTRIAL Overlay District (Check all that apply): 0 SHORELAND CIRIVERWAY 0 FLOODPLAIN 0 ADULT ENTERTAINMENT Type of Land Use Permit Request (Check one): Please refer to the current fee schedule on our website. If Lower St. Croix Riverway District 0 Wireless Communication Tower (Co-location) 0 Shoreland 0 Temporary Occupancy 0 Signage 0 Nonmetallic Mining Operation 0 Floodplain 0 Animal Waste Storage Facility 0 Grading & Filling, 12-24.9% Slopes 0 Livestock Facility 0 Other: 0 Permit processed in conjunction with a Land Division, Special Exception or Variance State the nature of your request: 6? eS 2~-) ~c' / ~i~~~E'~ ~~~~/l~,/ ~L~d✓J t~ Zoning Ordinance Reference SIGNATURE I attest that the information contained in this applicatyon is true and correct to the best of my knowledge. Property Owner Signature: Date -~3 r Contractor/Agent Signature: Date /7 i/ Complete Application Accepted: By: 4 Fee Received: 3 ii2l $`~S u. o Receipt 715-386-4680 St. Croix County Government Center 715-381-4400 Fax cdd @co.sint-croix w__us 1101 Carmichael Road, Hudson, WI 540 www.sccnvi.u cdd