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Home My WebLink About01-093 Impervious Surface Variance ADUrl'IO~AL ~A'l 'ERIAL/PLA~S AVAILABLE I~ LARGE SCALE. SEE'l'Hb PLA?\.\I\TG D bP AR'l '_\1b~'l' ~'O R ASSIS'l'A~Cb A'l' (952) 447-9810. YEAR: doa' APPLICA'l'lO~S " 'I 'I I, & .,1 :: APPLICA'l']!O~ I i MA'l'hltlALS L:\TEMPLATE\FILEINFO.DOC 1 ~.,. Planning Case File No. Property Identification No. tJ{-0Ct3 City of Prior Lake ZONING/LAND USE APPLICATION Type of Application Brief description of proposed project (please describe the proposed amendment, project, or variance request, Attached additional sheets if necessary), D Concept Plan D Preliminary Plat D Final Plat D Combination of Preliminary and Final Plat D CIC Plat D Modification to Approved Final Plat D Administrative Land Subdivision D Registered Land Survey .P Metes & Bounds Subdivision (Request for Council Waiver) }[3 Variance~ D Other Applicant: Address: Telephone: D. Mark Crouse l:>:>UI Ga..lmUt Avenue, pr10r .Lake, J!N :>:>3/Z 952.440.5233 (home) (work) (fax) Property Owners (if different than applicant): Address: Telephone: (home) Type of Ownership: IiI Fee (work) o Contract for Deed (fax) o Purchase Agreement Engineer/Surveyor: Valley Surveying Co. Address: 16670 Franklin Trai1 SE, '230, Prior Lake, MN 553/2 Telephone: ,'!:>Z.44/.Z:>IU' (office) (fax) Legal Description of Property (Attach additional sheets if necessary): To the best of my knowledge the information provided in this application and other material submitted is correct. In addition, I have read the relevant sections of the Prior Lake Ordinance and procedural guidelines, and understand that applications will not be processed until deemed complete by the Planning Director or assignee. ~ 7JJ1a-..4 ~ Ic)/.J...-2-{O, Applicant's Signature Date . ~-" -,n~ ~ ./d l.J,y/~-! Fee Owner's Signature Date nON '" '[J Yes: 0 No " ,oIialpag~ if~ecessary). 1:\handouts\2001 handouts\subdivisions\subdivision app,doc ., .. :1JI PLANNING DEPARTMENT VARIANCE APPLICATION REVIEW CHECKLIST I. OPEN FILE- Date Received: :1 f'I,~ 64 - II to' df~j) II I, ,,,,,'1.Y "<) IJ) Assign file number G:J Open and label file folder W Create file directory under variances ',\ II I II./CHECKAPPLICATION FOR COMPLETENESS Ij_/7'~I_'A,~. ~~.~'- ~" Completed application, including the appropriate signatures -.. ~ Filing Fee _ " ~- ~'-;~/- ~j~ ~ ~Necessary attachments ouse Plan~urs, etc.) r::;:(' List and labels of property owners within 350' (verify map and v radius) 1/IIlK04~ ~/ Written description ~f spe~ific variances requested "... ~.. Are all the requested variances included? III. WITHIN 10 BUSINESS DAYS: A. ,.- B Incomplete application (I:\template\variance\incomplt.doc) u/? 101 ~1 Notify applicant by mail of incomplete application and list necessary submittals in order to make application complete B. Complete Application (I:\template\variance\complete.doc) t1liqf91 ~- ~otify applicant by mail that application is complete. includes: ~ Tentative meeting date, time and location ~ Applicant is expected to attend meeting ~ Extension of 60 day action date to 120 days Letter I:\deptwork\blankfrm\varcheck.doc 1 .. PLANNING DEPARTMENT VARIANCE APPLICATION REVIEW CHECKLIST ~~ ~ V'~_ ~~.J(. (];Jl~b{1 IV. PREPARE REFERRALS (1:\te~pt2\v~r;anCe\referral.dOC) o Send referral notice of application to list of agencies and departments. o o o , Include DNR if located in a Shoreland or Flood Plain District Include County Highway Dept. if adjacent to a County Road Include other agencies as appropriate V. PREPARE HEARING NOTICE FOR PUBLICATION (I:\template\variance\heamote.doc) ~Notice includes: ~ Correct meeting date ~ Legal description of property ~ Property Address ~ Description of variance requests ~ Send notice to Prior Lake American by 12:00 NOON on Wednesday 3 weeks prior to meeting date VI. PREPARE HEARING NOTICE FOR MAILING ~emplate\variance\mailnote.doc ) ~ Notice includes: ~ Correct meeting date ~ Legal description of property ~ Property Address ~ [)escription of variance requests ~erify map and radius again! ....-- ~abel or type envelopes ca/Mail notices at least 10 days before hearing date I:\deptwork\blankfrm\varcheck,doc t03Jot c;L- I ~ hj;zlJit ~ I I 0J Wn!ot 2 PLANNING DEPARTMENT VARIANCE APPLICATION REVIEW CHECKLIST Notice must be mailed to: ~ Property Owner's List ~ Applicant ~ Property Owner (if other than applicant) ~ DNR (Shoreland or Flood Plain applications) VII. PREPARE PLANNING REPORT A. Report includes: (I:\template\variance\varrpt.doc) ORelevant Facts (including any previous actions or variances) rr Suggested Findings ~Staff Recommendation (including any conditions) ~Resolution for Planning Commission adoption ( see I:\template\variance\appres.doc or I:\template\variance\denyres.doc) ~Location Map I::)/'survey/Site Plan c;:r- Copy of hearing notice and/or application ~ Other Exhibits B. Submit report to supervisor by Tuesday before hearing date C. Mail a copy of the staff report and agenda to the applicant (and to the property owner, if different than the applicant) ~he cover letter should include the meeting date, time and location, and the fact that the applicant is expected to be present. VIII. FOLLOWING PLANNING COMMISSION DECISION A. If APPROVED: if Prepare Assent Form (I:\template\variance\assent.doc) I:\deptwork\blankfrm\varcheck.doc ~/2-q/ol lU 3(bl q0 - ~7/lf/& 1 ell ~/et tD! 8/ eJl 3 ~ ~ - PLANNING DEPARTMENT VARIANCE APPLICATION REVIEW CHECKLIST Resolution signed by Planning Commission Chair ~ Resolution signed by Planning Director ~ed and certified resolution and assent form sent to applicant for recording (see I:\template\variance\truecopy.doc for certification form) D Applicant returns recorded copy of resolution and assent form or other proof of recording B. If DENIED: t~ ~ tL- CJ 1- (Jh~ f' C ~Resolution signed by Planning Commission Chair ~olution signed by Planning Director C. In SHORELAND or FLOOD PLAIN DISTRICT: ~end copy of resolution to DNR within 10 days of Planning Commission decision IX. CLOSE FILE ~. Add header to file folder ~ned and recorded copy of resolution ~igned and recorded copy of assent form D D iLY /1JJ Planning Commission Minutes Enter in Property Management I:\deptwork\blankfrm\varcheck.doc ~- ) \ 0J 4 ! Resolution and ~inutes . . f-A~{j t1~~ L:\TEMPLA TE\FILEINFO,DOC ... RESOLUTION 01-025PC A RESOLUTION DENYING A 16.4% VARIANCE TO PERMIT A 46.4% IMPERVIOUS SURFACE COVERAGE AREA BE IT RESOLVED BY the Board of Adjustment of the City of Prior Lake, Minnesota; FINDINGS 1. Mr. D. Mark Crouse (applicant/owner) has applied for variances from the Zoning Ordinance in order to permit an impervious surface area of 46.4% on a single family residence on property located in the R -1 (Low Density Residential) District and the SD (Shoreland Overlay) District at the following location, to wit; 15507 Calmut Avenue NE, legally described as Lot 9, and that part of Lot 10, North Grainwood, and that part Government Lot 5, Section 25, Township 115, Range 22, Scott County, Minnesota, described as follows: Commencing at the northwest comer of said Lot 10; thence southerly along the westerly line of said Lots 10 and 9 and also 8, a distance of 165.00 feet to the actual point of beginning of the land to be described; thence westerly along the north line of said plat to the easterly right-of-way line of the Chicago, Milwaukee, St. Paul and Pacific Railroad; thence northerly along said easterly right-of-way line to its intersection with the westerly extension of the southerly line of the northerly 45.00 feet (as measured at right angles to the northerly line) of said Lot 10; thence easterly along said southerly line to the shoreline of Prior Lake; thence southerly along said shoreline to the south line of said Lot 9; thence westerly along said south line of said Lot 9, to the southwest comer thereof; thence southerly along the westerly line of said Lot 8, to the actual point of beginning. 2. The Board of Adjustment has reviewed the application for variances as contained in Case #01-093PC and held hearings thereon on December 10, 2001. 3. The Board of Adjustment has considered the effect of the proposed variance upon the health, safety, and welfare of the community, the existing and anticipated traffic conditions, light and air, danger of fire, risk to the public safety, the effect on property values in the surrounding area and the effect of the proposed variance on the Comprehensive Plan. 1:\01 files\O 1 variances\O 1-093\dnyrs,doc 1 16200 Eagle Creek Ave, S,E" Prior Lake, Minnesota 55372-1714 / Ph, (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNIlY EMPLOYER v 4. Because of conditions on the subject property and on the surrounding property, the proposed variance will result in the impairment of an adequate supply of light and air to adjacent properties, unreasonably increase congestion in the public streets, increase the danger of fire, and danger to the public safety, unreasonably diminish or impair health, safety, comfort, morals or in any other respect be contrary to the Zoning Ordinance and Comprehensive Plan. 5. A legal impervious surface area exists that meets the permitted coverage area for the subject lot, such that the hardship has been created by the applicant. Reasonable use of the property exists without the requested variances. 6, There is no justifiable hardship caused by the permitted impervious coverage area as reasonable use of the property exists without the granting of the variance. 7. The granting of the variance, as originally requested, is not necessary for the preservation and enjoyment of a substantial PJ.vperty right of the applicant. The variance will serve merely as a convenience to the applicant, and is not necessary to alleviate demonstrable hardship. The factors above allow for an alternative structure to be permitted with a reduced variance or none at all. 8, The contents of Planning Case 00-093PC are hereby entered into and made a part of the public record and the record of decision for this case. CONCLUSION Based upon the Findings set forth above, the Board of Adjustment hereby denies the following variance for an impervious coverage area on an existing single family dwelling, as shown in Attachment 1 - Certificate of Survey; 1. A 1,260 square foot variance to permit an impervious surface coverage area of 3,567 square feet (46.4%) rather than the permitted maximum area of 2,307 square feet (30%). Adopted by the Board of Adjustment on December 10, 2001. An~OmnrlsSiOn Chair (\TTEST: ~i!, ~ ~04 . P Vonald R. :Rye, li'f-g Director 1:\01 files\O 1 variances\O 1-093\dnyrs,doc 2 .._. __,_,_~"_'_,,-,,,-___,_,,__.__'''''''_'_''''_'"'__.'_'''' '., ._,..___.. .,.. ..,..._,-,....,..,..J',.....: '....'.0 ".d. ...__.... ... .... ... " ; , ~TTACHMEN I 1 - CERTIFICATE OF SURVEY ~ \0 of \..0' ~'" \,.'" E. ,,0 r:.oftt4f.f4 ':: l.o'T ,0 l ~'!I'\(\~ '0" . ~ii6 \0 . "'~.O&'!\\. (e 0..\0' i\ ~, \- ~ ~(\. -oe ..~ \. ,.. ~c ,_ "ell. e..1Jf?J ~o,. \. ~ ~oof/,i.. .~o'" , } A ,<Q ~ t \ ' 1/~'t ~ . ~ cg. If. II' ~ \a.I o ~ - " ~ ~ s \a.I ~ o a:. ... c 0 ~ o 'So .. ." ~ ~, o ~ \ \ c~a' " . . Doc. No. A 554094 OFFICE OF THE COUNTY RECORDER SCUI I COUNTY, MINNESOTA Certified Filed and/or Recorded on 06-27-2002 at 12:45 Receipt: 192535 Pat Boeckman, County Recorder 01 Fee: $21.00 Proj ect # STATE OF MINNESOTA) )55. COUNTY OF SCOTT ) The undersigned, duly qualified and Deputy City Clerk of the City of Prior Lake, hereby certifies the attached hereto is a true and correct copy of the original. ___ 'I, RESOLUTION #Ol-OllPC CASE FILE # Ol-017PC ~" ,. J -,p' .~r. " on file inthe office of the City Planner, City of Prior L --- Dated this 5th day of June, 2002. """1, l ,/< """.'0'" '.,.."\h' n ~ ~l, "Ii <<,,' \\'J.'..".. ", J.", I~~ If..' ";JI'.. ,_ *.'. r",. f -'..-. 'C,. ",', !" ".""',".,',",",,','," ."..',', "0' """,iA''.I,,',.,','', '~ '" .,'''-':':-,'-~''\''' "-",'-1" , -.,<l,'..,~.,..." "','-Ai,,!,,", '.J;.. Ii!,".'" :,:..,' ;'''. (,~ J <"~:'\" '~1J','"OI, _ J,IJ' >...d'.'.. ",',,~ -':'11'~:';.,.:,:,';.;," ".'~:r:' .;, ,; ",:"'.\'.:" ' :'::1,()\.1,.~.> . "'" ," ~""", .;11,.: ':~:. ,i'"qJ"j}r , ::;gJ'i', ',".',". (Gi, hi $,'~ ,,"-"": O""i~ ,.',,,(" . " ':";1:1<>,,':'1 ",". -,','" ", II ,.""" 'j , ';"''.\''(ij'''~'''_ ;"',':.. .' "'.,.",.,.",.'" .... ,,',-",,':':';..";."~; :,;.,.,.".~_, I;;.. .11,... '''!\',i''-'':'';~'' :"'ll\> ' "4lI'~ :;,' 1 :1 41 ",;."".. ...i\,::, ".... "~-:'" .,.. ., :: ", ~:itt, ,f,-,,~,:,:,:;;i'~_~.., \\: ': _~I"ofr~~:". i l'Al~~h\\1.-~~'7; \, " ,.'~,'~:',<::-~.", ",'" ..." ~ 1:\01 files\OI variances\OI-OI7\truecopy.doe RESOLUTION Ol-OllPC A RESOLUTION ~ ~ AOVING A VARIANCE TO PERMIT AN IMPERVIOUS SURFACE COVERAGE AREA OF 38%, RA1J::1.J!jJ:( THAN .1J::1.J!j MAXIMUM ALLOWABLE AREA OF 30% BE IT RESOLVED BY the Board of Adjustment of the City of Prior Lake, Minnesota; FINDINGS 1. Mr, D. Mark Crouse (applicant/owner) has applied for variances from the Zoning Ordinance in order to permit a paved driveway area to a single family residence with attached garage on property located in the R-l (Low Density Residential) District and the SD (Shoreland Overlay) District at the following location, to wit; 25 t)~'5 ooeoO 15507 Calmut Avenue NE, legally described as Lot 9, and that part of Lot 10, North Grainwood, and that part of Government Lot 5, Section 25, Township 115, Range 22~ Scott County, Minnesota described as follows: Commencing at the northwest comer of said Lot 10; thence southerly along the westerly line of said Lots 10 and 9 and also 8, a distance of 165.00 feet to the actual point of beginning of the land to be described; thence westerly along the north line of said plat to the easterly right-of-way line of the Chicago, Milwaukee, St. Paul and Pacific Railroad; thence northerly along said easterly right-of-way line to its intersection with the westerly extension of the southerly line of the northerly 45.00 feet (as measured at right angles to the northerly line) of said Lot 10; thence easterly along said southerly line to the shoreline of Prior Lake; thence southerly along said shoreline to the south line of said Lot 9; thence westerly along said south line of said Lot 9, to the southwest comer thereof; thence southerly along the westerly line of said Lot 8', to the actual point of beginning, 2. The Board of Adjustment has reviewed the application for variances as contained in Case #01-017PC and held hearings thereon on June 25, 2001, and on July 23,2001. 3, The Board of Adjustment continued the hearing to August 27, 2001, to allow the applicant time to present additional information. 4. The Board of Adjustment further continued the hearing to September 10,2001, at the request of the applicant. 5. On September 10,2001, the Board of Adjustment continued the review of the application for variances and allowed the applicant and other interested parties the opportunity to present their views. r 1:\OIfiles\OIvariances\OI-OI7\apTVIl,doc . 11_ A~ 1 , C i.\--) G-/- f1 ( ~ c- t. ~r e - f" I !to.vl '" 1 v'\ ~ · fBf7 ' \ 16200 Eagle Creek Ave. S,E" Prior Lake, Minnesota 55372-1714 / Ph, (952) 447-4230 / Fax (952) 447-4245 \ AN EQUAL OPPORTUNITY EMPLOYER 6. The Board of Adjustment has considered the effect of the proposed variance upon the health, safety, and welfare of the community, the existing and anticipated traffic conditions, light and air, danger of fire, risk to the public safety, the effect on property values in the surrounding area and the effect of the proposed variance on the Comprehensive Plan. 7, Because of conditions on the subject property and on the surrounding property, the variance will not result in the impairment of an adequate supply of light and air to adjacent properties, unreasonably increase congestion in the public streets, increase the danger of fire, and danger to the public safety, unreasonably diminish or impair health, safety, comfort, morals or in any other respect be contrary to the Zoning Ordinance and Comprehensive Plan. 8. The impervious surface area required for a driveway is such that the hardship created has not been created by the applicant. However, there is no justifiable hardship for the additional impervious surface area. 9. There is a justifiable hardship caused by the requirements of the ordinance, as reasonable use of the property does not exist without the granting of the variance for a hard surface driveway from the street to the garage, which would not be permitted without a variance. There is no justifiable hardship for the additional impervious surface area requested. 10, The granting of the variance is necessary for the preservation and enjoyment ofa substantial property right of the applicant. The variance will not serve merely as a convenience to the applicant, ~nd is not necessary to alleviate demonstrable hardship. 11. The contents of Planning Case 00-017PC are hereby entered into and made a part of the public record and the record of decision for this case, CONCLUSION Based upon the Findings set forth above, the Board of Adjustment hereby approves the following variance for an impervious surface area no greater than 38%, as shown in a Revised Attachment 1 Certificate of Survey: 1. A variance to permit an impervious surface coverage area of 38% of the lot area above the 904 foot elevation, rather than the allowecl maXimum area of 30%. The following conditions must be adhered to as part of the approved variance Resolution: 1. The applicant shall submit to the City of Prior Lake a revised certificate of survey identifying the impervious surface to remain and the impervious surface to be removed to verify all conditions of this Variance Resolution shall be met within 60 days ofthe date of approval. 2. Resolution Ol-OIIPC as adopted by the Planning Commission shall be recorded at Scott County within 60 days of the date of approval and proof of recording shall be submitted to the Planning Department along with the acknowledged Assent Form. Adopted by the Board of Adjustment on October 8, 2001. " 1:\01 files\O 1 variances\O 1 -0 1 7\aprvrs.doc 2 ~~.J12 onald R. Rye, Plamiin . -----? vi /~ C' Thomas E. V~of ~ · d.- , omrnIssio#h' / aII 1:\Olfiles\Olv . anances\O 1-0 17\a prvrs, doc 3 SURVEY PREPARED rOR: MARK CROUSE 1~'507 CALMUT AVE, NE PRIOR LAKE. MN, &5372 ~ &: :) en u. 0 w ~ U - u. - t: . w 0 I ,.. ~ ~ Z w :IE ::J: ~ ~ ~ o 20 40 r IICAI.E III 'leT 0__ ,lOt, .---- Valley Surveying Co., P. A, SUITE 230. FRANKLIN TRAIL OFFICE ..,'L.. ,JlNIUM 16670 FRANKUN TRAIL S. E, PRIOR LAKE. MINNESOTA !l5372 TELEPHONE (6121447-2570 ~.~.. ..,'t'~." ~ 1t-4'>S, ~. ~~:' \0 :;u.~ .......7'~\t:)' too:.. I) .~ ,..I"~.\ .... p~ \?~ ." ., I:",~j ,:.w..I AS"" ,\10' 'W ...~. ,LaI'lIIIIthII...aI'LolIO, .M'.... ORA.., I "..~ .,...l!lIl...aI't" '.. Lal5.Sootioa25.T..-,I".RaqoU.ScoaC-,\,.1 _" ..,.1..1.. ~ .c. ,:,,"dlO .', ".,_oftoidLolIO:........~alongllle ,-, Jlaool'ald I.aIs 10'" 9... al50 8....... aI' 16MO lftt......._ ,...aI', ,,;,., '..",aI'lIle_IDbe :..:'. .r.__I,aloqllle_lifteof _.....10...........""..,.;, . Haeof....CIIlcIll".I'! . .......Sl.PauI... PIt:iflcRailnlad:-. .. ",' ......aid.......,ri""-ot....,HaeIDils ,. ..",...:,. _dlO~ ...,..:, ofdlO.. ,./.'" UnoofdlO-'>orIy4',OO ....,.. ..., .. at ri"" mgIa 10 Ibo...-., Uno) of Slid LolIO: - ~ ......_,. ..., ". JlaoIDlIle,: ,.:' ,ofPriaoLake: --,......- ohontIifta "'...._ Jlao of Slid Lol9; _-..I, along lIIIid _Iifte of_ Lat9,......."".. _, _tbmlof._..", ,i. ......lIle-..l'lifte.".ic1 .......ID...._poilllol'..,; 1IOJ1!S; B .' ,..., I!IO\'OIioa 909." 1'0\1 ofdlO ....don-. slab '164 llenoles-."...... ,.' ,;" . F1L ( 110 \.~~E. "",' loll. \. I.', .;." "_" ...'-.....\f v..... "'t.:ll'.J. ..:n....... fJ;'jI.' ~~PlR\I~' ,V-f..., ':',,,:' PI', .,,'..'.", r,\ ~II.,"", lo"I'c"",alv'; "At.... ':)IIl".u"'h.pr~.,.,.,rllf'''1J I .....oy OIl'lIry """ .... """.. _ ",'" . b't....or\l'ldefft'l1 direct ., ,'.' '..' CIItI ~d tftGt J om o duly ~ Ln Sonoyal' :-~,~-j~'S_of /::..,:.1'/ /:. _ ~ Dafe JL -/.. ~ ...... NO. lOIn " 9240 BOClIC.122.. PAGE 48 ASSENT OF APPLICANT File # Ol-017PC As Approved by Resolution # Ol-OllPC 1, I have read the conclusions and conditions of said Resolution, and I am familiar with their contents and with the content of the exhibits, 2. I fully accept all of the terms and conditions of said Resolution. 3. I understand Section 1108.400 of the Prior Lake Ordinance Code provides as follows: 1108.413 Revocation and Cancellation of a Variance, A Variance may be revoked and canceled if the Zoning Administrator determines that the holder of an existing Variance has violated any of the conditions or requirements imposed as a condition to approval of the Variance, or has violated any other applicable laws, ordinances, or enforceable regulation, 1108.414 After One Year. No Construction Reauired. All Variances shall be revoked and canceled if 1 year has elapsed from the date of the adoption of the resolution granting the Variance and the holder of the Variance has failed to make substantial use of the premises according to the provisions contained in the Variance. 1108.415 After One Year. New Construction Reauired. All Variances shall be revoked and canceled after 1 year has elapsed from the date of the adoption of the resolution granting the Variance if a new structure or alteration or substantial repair of an existing building is required by the Variance and the holder has failed to complete the work, unless a valid building permit authorizing such work has been issued and work is progressing in an orderly way. 1108.416 Uoon Occurrence of Certain Events. If the holder of a Variance fails to make actual use of vacant land, or land and structures which were existing when the Variance was issued and no new structure, alteration or substantial repair to existing buildings was required; or if a new structure was required by the Variance and no building permit has been obtained, the Variance shall be deemed revoked and canceled upon the occurrence of any of the following events: (1) A change in the Use District for such lands is made by amendment to the Zoning Ordinance by the City Council. . L:\O 1 files\OI variances\01-017\ASSENT,DQC 1 16200 Eagle Creek Ave, S,E" Prior Lake, Minnesota 55372-1714 / Ph, (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER . .. (2) Eminent domain proceedings have been initiated to take all or any part of the premises described in the Variance. (3) The use described in the Variance becomes an illegal activity under the laws of the United States of America or the State of Minnesota. (4) Title to all or part of land described in such Variance is forfeited to the State of Minnesota for nonpayment of taxes. (5) The person to whom the Variance was issued files a written statement in which that person states that the Variance has been abandoned. The statement shall describe the land involved or state the resolution number under which the Variance was granted. (6) The premises for which the Variance was issued are used by the person to whom the Variance was issued in a manner inconsistent with the provisions of such Variance. 4. I understand the granting by the City of this Resolution is in reliance on the representations that I will fully comply with all of the terms and conditions of said Resolution. I understand and agree upon notice of non-compliance with any term or condition, I shall immediately cease conducting activities pursuant to the notice or will take all actions necessary to accomplish full compliance with said notice and conditions of the Resolution. (o/.J. 7/0.)... DATE ~t 777/1t~ ~~ SIGNATURE OF APPLICANT ~e /vU~ ~ SIGNATURE OF OWNER 15507CALMUT AVENUE ADDRESS OF PROPERTY L:\OI files\OI variances\O 1-0 1 7\ASSENT,DOC 2 Original Reports /7 CU1ni~ "K-tprA- 11)..-[0 ' (J I L:\TEMPLATE\FILEINFO.DOC AGENDA ITEM: SUBJECT: SITE: PRESENTER: REVIEWED BY: PUBLIC HEARING: DATE: INTRODUCTION: PLANNING REPORT 5B A PUBLIC HEARING TO CONSIDER A VARIANCE TO IMPERVIOUS SURFACE AREA ON PROPERTY LOCATED AT 15507 CALMUT AVENUE FOR MR. D. MARK CROUSE, (Case File #01-093PC) LOT 9, AND PART OF LOT 10, NORTH GRAINWOOD STEVEN HORSMAN, ZONING ADMINISTRATOR JANE KANSIER, PLANNING COORDINATOR _X_ YES NO DECEMBER 10, 2001 The Planning Department received a variance application from Ms. Allison Gontarek, Huemoeller & Bates Attorneys At Law, representing Mr, D. Mark Crouse the owner of the property at 15507 Calmut Avenue. The applicant is submitting a variance request for an increased impervious surface coverage area. (Attachment 1 - Certificate of Survey). On October 8, 2001, the applicant was previously granted a variance for an impervious surface coverage area of 38% by the Planning Commission (Resolution 01-011 PC). This variance allowed the applicant to keep a portion of an existing driveway to access his 3 stall garage, while removing the additional parking and rear yard patio areas to accomplish the 38% coverage area. The applicant has since received an engineer's report on the need for the lakeside patio area to provide soil stabilization around the structure foundation. The applicant therefore requests the following Variance: 1) A 1.260 SQuare foot variance to oermit an imoervious surface coveraae area of 3.567 SQuare feet (46.4%) rather than the oermitted maximum area of 2,307 SQuare feet (30%) [Ordinance Section 1104.306: Impervious Surface Coverage]. HISTORY: On June 25, 2001, the Planning Department held a public hearing for two variance requests from Mr, D. Mark Crouse (applicant/owner) on the property located at 15507 Calmut Avenue, The requests included a variance from the ordinary high water mark for a deck setback, and a variance to the maximum impervious surface area, The Planning Commission denied the deck variance and continued the public hearing regarding the L:\01flles\01varlances\01-093\VarRprt1,DOC Page 1 16200 Eagle Creek Ave, S,E" Prior Lake, Minnesota 55372-1714 / Ph, (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER impervious surface variance to allow the applicant more time to revise the request because the Commission did not believe the applicant provided proof of hardship for the requested 4,422 square feet impervious area or 57.5% of the total lot area. At the public hearing held on July 23, 2001, the Planning Commission again continued the pUblic hearing to August 27,2001, to allow the applicant time provide new information, In addition, the Planning Commission directed the applicant to reduce his variance request for an impervious surface coverage area in the 30-percentile range. On August 27,2001, the applicant requested an additional continuance of the public hearing and the Planning Commission continued this item to the next scheduled meeting. On September 10, 2001, the Planning Commission directed staff to draft a resolution approving a variance to allow an impervious surface area of 36%. On September 24, 2001, the Planning Commission reconsidered their earlier action and determined a 36% impervious surface area would not allow for a complete driveway to the existing 3 stall garage. The Commission adopted Variance Resolution 01-011 PC to allow a 38% impervious surface coverage area for the proposed driveway. The variance provided a driveway with dimensions of 24' wide at the front lot line, 24' deep by 36' wide at the garage, and tapering back to the front property line, for a total impervious coverage area of 792 square feet. DISCUSSION: A building permit for the house on this lot was issued in 1995. A condition of approval of the permit stipulated the impervious surface area was not to exceed 30 percent. Most of the additional impervious surface area, such as the driveway and patio, were added after the completion of the existing house without permits, The applicant now proposes a 46.4% impervious surface coverage area to permit the existing patio area to remain due to the need for a "cap" over the fill area around the home's foundation for soil stabilization, as recommended by the engineering firm Professional Engineering Consultants, Inc. (Attachment 2 - Engineers Letter). The lakeside yard patio area of 539 square feet will add 8.4% to the previously approved impervious surface coverage area of 38%. The subject lot has a total area of 7,689 square feet which allows for 2,307 square feet of impervious surface to equal the 30% coverage area as permitted under the Ordinance. The area for house and garage totals 2,152 square feet. The area for the driveway amounts to 792 square feet, plus 84 square feet for the front stoop. When combined with the patio area of 539 square feet, the total requested impervious surface coverage area equals 3,567 square feet or 46.4% of the total lot area (Attachment 3 - Impervious Surface Worksheet). The applicant also proposes to remove 372 square feet of concrete by modifying the existing 4 I concrete sidewalks to a maximum width of 3' as permitted under the City Ordinance. Sidewalks less than 3' wide are not considered impervious surface by definition. In addition, the applicant proposes to remove approximately 186 square feet of existing driveway area in the public right-of-way, and 570 square feet of parking area along the garage on the subject lot. L:\01 files\01 varlances\01-093\VarRprt1 ,DOC Page 2 A follow-up inspection of the subject property was conducted on August 6, 2001. The deck and concrete impervious surface coverage area remain, as documented on the original certificate of survey. In addition, a metal frame with tarp boat shelter has been installed on the south side of the property. To my knowledge, this shelter was not included on the original or proposed impervious surface calculations, and is not depicted on the certificate of survey submitted for this variance request. The City Engineering Department reviewed this request, including the engineer's letter of recommendation to allow the applicant to keep the existing patio (cap) for soil stability. The Department noted the absence of calculations in the letter to support their recommendation for the cap. However, without conducting an analysis of the subject site, the Engineering Department does not support nor dispute the applicants engineer of record. The Department does suggest there are alternative methods to stabilize the soils and retaining wall thereby eliminating the patio cap and the impervious surface coverage area (Attachment 4 - Engineering Department Memo). The Department Of Natural Resources submitted comments for this report. In short, the DNR is not convinced by the engineer's letter of recommendation, and suggested the City Engineer provide an independent review. However, should it be determined the patio cap is necessary for structural reasons, perhaps other non-essential hard surfaces can be eliminated in their place. VARIANCE HARDSHIP STANDARDS 1. Where by reason of narrowness, shallowness, or shape of a lot, or where by reason of exceptional topographical or water conditions or other extraordinary and exceptional conditions of such lot, the strict application of the terms of this Ordinance would result in peculiar and practical difficulties or exceptional or undue hardship upon the owner of such lot in developing or using such lot in a manner customary and legally permissible within the Use District in which said lot is located. The subject property is a nonconforming platted lot of record, but was developed under the current ownership, who did not meet the conditions spelled out in the building permit for the principal structure which included a maximum 30% impervious surface coverage area. However, in review, it appears the applicant could not meet the required 30% impervious coverage and be able to construct a driveway for the approved 3 stall garage, as was determined when the applicant was granted a 38% impervious surface coverage area, The request for a 46,4% coverage area for the patio area, while recommended by the applicants engineer, has not been supported with calculations by the engineer. In addition, the City Engineering Department has suggested an alternative solution to the problem. 2. Conditions applying to the structure or land in question are peculiar to the property or immediately adjoining property, and do not apply, generally, to other land or structures in the Use District in which the land is located. L:\01 files\01 variances\01-093\VarRprt1 ,DOC Page 3 The existing conditions of the lot area and dimensions are peculiar to the property, and generally do not apply to most other lots within the Shoreland District. However, when all required conditions are applied, there is an approved variance resolution for a 38% impervious surface area to allow for the driveway. 3. The granting of the proposed Variance is necessary for the preservation and enjoyment of a substantial property right of the owner. The approved legal building site precluded the need for the additional variance requests. The owner created the hardship when he decided on the building dimensions and location of the structure, as well as the excessive paving of the subject lot. The Planning Commission previously determined the need for some variance to impervious surface; however, the Commission determined a 38% coverage allowed the applicant reasonable use of the property. 4. The granting of the proposed Variance will not impair an adequate supply of light and air to the adjacent property, unreasonably increase the congestion in the public streets, increase the danger of fire, or endanger the public safety. The granting of the requested variances will not impair light and air to adjacent properties or increase congestion, danger of fire or endanger public safety. 5. The granting of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair established property values in the surrounding area, or in any other way impair the health safety, and comfort of the area. The granting of the variance for increased impervious surface area will adversely affect the above stated values by reducing the infiltration/buffer area, which helps to remove the pollutants and increase the potential for shoreland erosion with additional upland water runoff into the Prior Lake watershed and floodplain and thereby affecting the adjacent properties. 6. The granting of the proposed Variance will not be contrary to the intent of this Ordinance and the Comprehensive Plan. The granting of the variance is contrary to the intent of the Ordinance and the Comprehensive Plan by allowing excessive impervious surface conditions than were originally approved by a building permit (30%), and increased by Resolution to 38%. 7. The granting of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. The granting of the variance requests appears to serve as a convenience to the applicant, since other means are available to provide soil stability around the structure. L:\01 files\01 varlances\01-093\VarRprt1.DOC Page 4 8. The hardship results from the application of the provisions of this Ordinance to the affected property and does not result from actions of the owners of the property. The hardship results from the actions of the property owner when he constructed the dwelling in 1995. 9. Increased development or construction costs or economic hardship alone shall not be grounds for granting a Variance. Financial considerations alone shall not be grounds for granting this variance request. The property owner helped to create the need for these variance requests by not following the approved conditions for the original building permit. RECOMMENDATION: The staff recommends the Planning Commission deny the applicant's variance request for 46.4% impervious surface area as the request does not meet all of the hardship criteria due to existing conditions on the nonconforming lot of record, the approval for a building permit to construct the existing structure with a 30% impervious surface coverage area, and the recently approved 38% impervious variance. In addition, the City Engineering Department suggested another option for shoring up the retaining wall and stabilizing the soils that would not result in additional impervious surface, ALTERNATIVES: 1, Approve the variance as requested by the applicant. In this case, the Planning Commission should direct staff to draft a Resolution with findings approving the variance request. 2. Approve a variance as deemed appropriate by the Planning Commission. In this case, the Planning Commission should direct the staff to prepare a Resolution with findings approving the variance request. 3. Deny the variance as requested by the applicant. In this case, the Planning Commission should adopt the attached Resolution 01-025PC. ACTION REQUIRED: Staff recommends alternative #3. 1. A motion and second to adopt the attached Resolution 01-025PC denying the applicants request for a 46.4% impervious surface coverage area. L:\01 files\01 variances\01-093\VarRprt1.DOC Page 5 PROf. ENGR. CONSULT. 491219265 p.e1 ATTACHMEN I 2 - ENGINEERS LETTER 203 LITTL8 C.\NADA !tOAD SUIT! 280 SAINT PAUL MINNasOTA SS1I7 TBL: dSI-A90-9~dO PAX: dSI..A'O-9ZlIS :.~:!I. ~~Jl.:\:"Y.~ ~OFESSIONAt. ENGINEERING CONSULT ANTS INCORPOR4TKD October 4, 2001 Mark Crouse 15507 Calmut Ave NE Prior Lake~ MN 55372 Subj~ Grading Review 15507 Calmut Ave NE Prior Lake, Minnesota - PEC #5091 Dear. Mr. Crouse: This letter concerns our review of the grading and patio construction for the single ta~ily residential structure at the above referenced address. We 'understand the structure was built with a basement floor elevation ,lbwer than currently a110wed tor residential structures on the, lake,hore. Therefore J the wood framed portion of the structure was' raised. I four CO\.lJ:'ses of block were added to the perimeter foundation and fil~ was added inside of the structure to support a lower level floor slab. Now the lower level floor slab complies with current elevation requirements. These alterations required changes to the exterior grading, On the lake side of the struoture the grading changes required the following engineering considerations:' 1. The exterior grade had to be raised to balance the lateral soil loadings on the raised section of the rear foundation wall. 2. The grade required a cap to prevent surface water infiltration into the backfill region to reduoe frost action and provide erosion control. Erosion .control was required bet.ween the shoreline and the building', In addition to the engineering consideratio~s,~here the function and maintenance considerations for the construction. There was a sliding glass doorway in the lower level and a need to provide maintenance access for the lake side face of the construction. These requirements and engineering requirements were accomplished by constructing a near level I~ade with a retaining wall. The r0taining wall also had a requirement to reduce lateral frost action against the wall. Therefo-;re, the top of t,b~,_grade had to be capped to minimize surface water runoff from percolating into the subgrade soils. · :/ Pag., Two I ,I I' The pa.ved patio 8.t'ea fulfills the cap requirement over the baokfill. It minimizes the surface water infiltration to reduce frost action in the subgrade soils and it keeps water away from the fo'undation. It also provides erosion prot.ect.ion for the subgrade. Dtu'ing our observations on October 1, 2001, we observed a gap bet",een the foundation wall and the patio slab. This gap ahould be sealed with a flexible joint sealant to prevent dirt and water migration into the gap. The sa'" joints in the patio also shou.ld be sealed with joint sealant. The patio sla.b extends to the outside edge of the retaini,ng wall. This construction detail mi.nimizes wat.er infi.ltrat.ion bfthind the back of the retaining wall. I :1 t I I i I. ',. I I" J ; ~. If ~ou have any questions regarding our review, please contact us at 651-490~9266. I' i ' t Respectfully, Professional Enginle ing Consultants, Inc. I ~ ~ /7 . J) r. ~ 1"\' f ~J ,;:fQNt,-I I ~yhn F. Gislason, r., P.E. Professional Engineer JFG/fm .. . cc:. Allison Gontarek 952-447-5628, Fax '~ I I i J I I . I 1 CITY OF PRIOR LAKE Impervious Surface Calculations (To be Submitted w'ith Building Permit Application) For All Properties Located in the Shoreland DisL.~\..t (SD). The Maximum Impervious Surface Coverage Permitted in 30 Percent. Property Address \..;~., CD.\tIloA.U~ ~'" ~~\J'- t'l~ Lot Area ~q ~'e.~ C\o'-'..o Sq. Feet x 30% = .............. "Z. ~o., ************************************************************************ LENGTH WIDTH SQ. FEET \ \ "" '" HOUSE , ~ , ATIACHED GARAGE x = x = x = \esb~ TOT ALPRIN CIPLE STRUCTURE...................... "2. \ rs-z.. DET ACfIED BLDGS (Garage/Shed) x X TOTAL DET ACHED BUILDINGS......................~ ~~~ ' Drov~WAY~AVEDAREAS X (Driveway-paved or not) ~c:. ~ .. x (SidewalkIParking Areas) ~ X = ,q'2. &'-1 = = TOTAL P A YED A.RE"AS......................................... 9"~ c.ca~~ ' P A TIOS~ORCHESIDECKS (OpenDecks '14" min, opening between boards, with a pervioUs surface below, arc not considered to be impervious) = ~q X X = X = TOTAL D E CKS.............-........................................... r:;'!.~ OTHER = X X = TOT AL OTllER..............................!!......................... TOTAL IMPERVIOUS SURFACE UNDE~ Prepared B:Y:I:l"e- ~ \<'1"'~ 1! company~\\~ -5"R.~') \=?~. ~(Pr I ''2-'-0' .. I Date \0\Z'2../0 l Phone # ""\l'-'Z..~7t) ~~:I.: ):>.- ~ '~ 15 ::I: s: m Z ~ w I - s: -a m ~ - o c: tn tn c: :a i! o m .~ :a '~ ::J: m m .... J CItY OF PRIOR LAKE Impervious Surface Calculations (To be Submitted w'ith Building Permit Application) For All Properties Located in the Shoreland DisL.~\,.t (SD). The Maximum Impervious Surface Coverage Permitted in 30 Percent. Property Address \~~, Co.\~u-c"'" "-'-5 f..~"'~ N~' Lot Area "1l-la~~ ~ ~\.u C\o\.\.o Sq. Feet x '30% = .............. -z. ~o, ************************************************************************ LENGTH WIDTH SQ. FEET \\ "" \.l HOUSE ~ , ATIACHED GARAGE x = x x = \~~ TOTAL "PRINCIPLE STRU\. J. URE...................... "2. \ 'S '2.. DETACf.IEDBLDGS ' (Garage/Shed) x X TOTAL DETAClIED BUILDINGS......................~ ~~~ ' DRlVEWAYfPAVEDAREAS X - . (Driveway..;paved or not) ~.t'!IIl\t- s4.e 4!!a X (SidewalkIParking Areas) " ~ X = ,q~ e'" = = TOTAL P A YED ~.AS......................................... e,<. CI:a~ ' , P A TIOSfPORCHESIDECKS (Open Decks '/.- min. opening between boards. with a pervioUs surface below, are not considered to be impervious) x = '2:bq X = x = T OT.~ D E CKS........................................................ ':S'!>~ OTHER = X X = TOTAL 0.1 J:1Ji,R.............................~.......................... TOTALI~ERVIOUSSURFACE UND~ 'Prepared B;:I::l~<:.-"" . \<""" ....~ ft. ~;;~~ ~".'" , company~"'Q.~.) t?~. ~~r I I ''2-~O' - I Date ,~ . .2.'2,.! 0 t Phone # "-l\l1-'Z~"7t) :I=!. ~ .~ l; :J: 3: m z -I w . ~, -c m ~ - o c: en en c: :rJ i o m .~ :rJ '.;5 fJ) :I: m m ...t J ,_<i. i' 0' , ,ATTACHMENT 1 - CERTIFICATE OF SURVEY Oif \0 of\J If''' \.\ "l. ,,~ -;::: . ~,\~o, 'Q' . ~iS \0 ..~. .~\..~ <4< 0..\0' -", ~, l'" ~a- ~c.' -oe ,,~ ..... ,.. " ~\e~ t.O~ .....~1j ~O<f\~ e~~ j /'1 ~O ~ t \ . 'i/~t ~ . ~ ca ~ \It ~ t 9. _ .,.. - .) ~ s \Iol ~ I:) a:. '::! \ ~ ij1 ., \It ~ ~ o ~ \ \ _.- , 70 Zt:-- 1\ "'ro- . 1 \OIl'H \ \S7902,6 ~ \ 9 , of \.01' ... , S ,\.'t \ 1 \.\ NE 'i. \ '.. " \ ~ ' \ . " \ . \ : c~e\N -" . .-,. '.''''-~''', -.. .." ... -" --, ---,' ! .. .-:.. 'M' _.___,' -- . "..;...:.;,..;.. .. . ~~., -~. - ' ."....- ',~ .. - ... .'- --......--.--...----- ......,;.",;.-.--........;.:-.. \.......:..~':...;..:a;...~~~. :i. ' .......- .. ........~. .--:~. . ..-.; ..'. ...... ~'...4. ...... '..,.. --. .. .. i. :. I ~ '. i:::~', .. CERTIFICATE OF SURVEY . . .ATTACHMENT 1 ~ ~O'\'~ ~,,~ to ~__f'" , ~ \11''''- . ~ O'\' \0 It'f. of \.l t'~~ ~ \.~\\f1q , . ~1ol ~ \0 rJt~""A\\'~ ~, ~ ~ tfoO- ..,0.' -0& ~~ \'io ~ ~ ~ ~ ~ o -:::. c~a\ ~ Original surveys and drawings L:\TEMPLATE\FILEINFO.DOC IF "'--~--~"""'--""'--~......................___~.~_---.-~-m-..-__"'_''''''M''''''_~_______''''''''''''''_;'__'_'__~.................._ SURVEY PREPARED FOR: MARK CROUSE 15507 CALMUT AVE, NE PRIOR LAKE, MN. 55372 1 ~ I i Ii o 20 40 ,;.._~u.wr.;",~..."'J~>~""""~ , ) .- ~-".~._~ SCALE IN FEET ;) Denotes Inm monument lief, II 0........... iron mmumoot fCll.llKl1 VaHey Surveying Co., PA. SUITE 230. IFRAN&<LIN TRAiL OFFICE OONDOMIN~UJM IS610 IFRAN6(Uf~ TRA~L S.IE. PR~OR lAKE. MINNESOTA 5531'2 TELEPG-iONE (612) 447-251'0 \0 ...-,. .,i'\\ G:(~ \Ou'fJ ~(e.,\c. ~f.\tJe~ I,' "~'"'\\tlt''' ~,\~c;'Ou.:..o"J\ 0"' . ~1\. '\" Q'le ~'i.' ,.\0" ~o'" ~O' ,0\' \\, \, .~ -,--;7 ~$ ~ ~~. ',\"....- . ~ \"'l..":J , ~# . ..,,,\\0,\:, );., ' ..' e,e ~W$' \ -:,0<0""\ ,:;,'b'lJ ~Q\~e"'ci''(' ~ /~ 10 ,i' '1\ a~\~~ / .., ,;;., \.1 ' . ~~ \t. 'ki :-) €.~ . U\ u1 -z. .) ;;. '& ~ 'J: 7n '" J /' ~, o '" .[)f,;;'CRIPTf{it,; A&PROVIDED: Lot I) and that part of Lot 10, "NORTH GRAINWOOD", and that part of Govemmem Lot 5. Section 15. Township 115. Range 22. Scott County. Minnesota described a~' toll(lW~: Commencing at the northwest comer of said Lot ](): thence southerly along the westerly line of said Lots 10 and 9 and alsei 8, a distance of 165,00 feet to the actual point of beginning of the land to be described; thence westerly along the north line of said plat to the easterly right-Of-way line orthe Chicago, Milwaukee, St. Paul and Pacific Railroad; thence northerly along said easterly right-of-way line to it!: intersection with the westerly extension of the southerly line of the northerly 45 ,(It! lee! (as measured at right angles to the northerly line) of said Lot 10: thence easterl~ 'along said southerly line to the shoreline of Prior Lake; thence southerly along s8Id shoreline to the south line of said Lot 9; thence westerly along said soutb line of said Lot 9, to the southwest comer thereof; thence southerly along the westerly line of said Lot 8, to the actual point of:\...;....ing, N.9TES: Benchmark Elevation 909,51 Top of the existing garage slab (j 16 4 Denot~ existinl=- gmde elevatlOf1 "~~.>JJo\\I~"'~"~'W"'l'"'"''''''./f-~~''''' 1"'11.. e IlaO \... ~ \i<. E 90\'& OCT 2 6 2001 REV. 10/22/01 T(1 SH:JW l~if'EFNIOUS AR T(I iIEMAIN. REiV.oV'cll, \\II00IFIELl. I hereb)! c:ertlfl1 ~ fbl!; survey was p........,...] !rly me or under 1m)! direct superolEllon mol tfoot I am (!l duly Ll........-J L.and Surveyor under ~ ICiW~~m; StatG! or ~;:~/JL~:~- OeM! JZ -h -an u~ NO, !OIEII!! .__~________.......__..-..,.~....................,-:t 9240 '~"!,," '::~~ 1\1:::;'::,", '~;~~:ll:'~Jitn~;'~/~'if'l:";'.:i~';of;,,>~~::";;~.JI''1..,.....,7'''''''''' ~'-.".' - - ~<..~ ,~..-_,",,'....- '---- ~ - - - ~- - MJ:tlJJA VIT OF SERVICE BY MAIL COUNTY OF SCu 11 ) )ss STATE OF MINNESOTA) J)MA.ML r~ of the cityESPrior Lake, County of Scott, State of Minnesota, being duly sworn, says on the , day of \J{)\) , 2001, she served ~~ atl!ched list .of persons 10 have an interest in the, r J('D'\lI.IR,... l~ c/ Y\ff~ ~ - 0'13 ' by mailing to them a copy thereof, enclosed in an envelope, postage }'J.I:f}'aid, and be depositing same in the post office at Prior Lake, Minnesota, the last known address of the parties. '"' Subscribed and swom to be this day of , 2000. NOTARY PUBLIC .. L.\u=, ...ORK\BLANKFRM\MAILAFF,DQC IlbARl_\ G ~O'l'lCbS " . L:\TEMPLATE\FILEINFO.DOC .... NOTICE OF HEARING TO CONSIDERlJiE FOLLOWING: VARIANCE TO EXCEED Ttl~ ALLOWABLE INPERVIOUS SURFACE COVERAGE AREA FOR AN EXISTING SINGLE FAMILY DWELLING ON PROPERTY LOCATED IN THE R-1 DISTRICT (LOW DENSITY RESIDENTIAL) AND THE SHORELAND DISTRICT (SD) IDENlll<lliD AS 15507 CALMUT AVENUE, PRIOR LAKE, MN. You are hereby notified that the Prior Lake Planning Commission will hold a public hearing at Prior Lake Fire Station #1, located at 16776 Fish Point Road SE (Southwest of the intersection of County Road 21 and Fish Point Road), on: Monday, December 10, 2001, at 6:30 p.m. or as soon thereafter as possible. APPLICANT: D. Mark Crouse 15507 Calmut Avenue NE Prior Lake, MN 55372 SUBJECT SITE: 15507 Calmut Avenue NE, Prior Lake, MN, legally described as Lot 9, and part of Lot 10, North Grainwood, Scott County, Minnesota REQUEST: The applicant is requesting a variance to allow an existing impervious surface coverage area of 46.4% of the lot area above the Ordinary High Water Mark. If you are interested in this issue, you should attend the hearing, Questions related to this hearing should be directed to the Prior Lake Planning Department by calling 447-9810 between the hours of 8:00 a.m. and 4:30 p.m. Monday through Friday. The Planning Commission will accept oral and/or written comments. Oral or written comments should relate to how the proposed construction and requested variances are or are not consistent with the Zoning Ordinance and variance hardship criteria. Prepared this 28th day of November, 2001. Steven Horsman City of Prior Lake To be mailed on/or before November 29,2001. L:\01 files\O1 variances\01-093\MaiNOTE.DOC 1 16200 Eagle Creek Ave, S,E" Prior Lake, Minnesota 55372-1714 / Ph, (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER _ocation v1a) r '\ \ \j\I'.NOSON~ 3 1 2 4 3 ~ \0~ GQ..'\f 0 / o III g 0 :> 5 < i ON g --- 9 8 10 3 2 ~ O~G N \N\~'pS 4 ~ /~ 1 2 ~ 5 4 18- 6 A llI\S NOT E eino~e<S '0 1:l8~f""O ,ne \0 f \.OT \.\tlE 0 NOR"'" fj,' c. ~\"~ c.0( , ~10\: \0 ~<1\0" i'\~' \\\6 \\, ' ~O <1\06 '!to.' '06 ~ \'Z . t i ~ ~ a, ~ o , - \ \ .. ,-- - -~ \ \ \ " \ ',\ "'IJ '~ (J\ \ t~.' l- \ '~O o . ..j ... ~ ~ ~'!l~ ~ t4Jb - a:. " ..j cO ~ .~ I - 0,"1-- I' 7 ,.. au" 'r-- 02.6' \0 ~ 119 \519 Of \.OT ~ \ \ ~\.\NE ~ \ S'L'( ... \ \ \ . \ ~ \ . 1\ \ I , \ , \ I ~ , j I . I Cl).6\N PROf. ENCR. cONsULT. 4909265 P.01 203 1.1TTL2 CItN,ADA !tOAD SUITi 280 8AIN1' PAUL M1NNliSOTA SS117 TiL: 1151-490-92.116 PAX: 1151-490-9%'" :,~&.,;~~""Q~~ ~QFES310NAL ENGINEERING CONSULT ANTS INCORI'OR...TIoiD October 4, 2001 Mark Crouse 15507 Calmut Ave NE Prio~ Lake, MN 55372 Subj: Grading Review 15507 Calmut Ave NE Prior Lake, Minnesota - PEC '5091 DeaJ'.' Mr. Crouse: This letter concerns our review of the grading and patio construction for the single ta~ily residential structure at the above referenced address. We 'under$tand the structure was built with a basement floor elevation .lbwer than currently allowed for residential structures on the,lake~hore. Therefore, the wood framed portion of the structure was raised, four courses of block were added to the perimeter foundation and fill was added inside of the structure to support a lower level floor slab. Now the lower level floor slab complies with current elevation requirements. These alterations required changes to the exterior grading. On the lake side of the structure t.he grading ohanges required the following engineering considerations: 1. The exterior grade had to be raised to balance the lateral soil loadings on the raised section of the rear foundation wall. 2. The grade required a cap to prevent surface water infiltration into the backfill region to reduce frost action and provide erosion control. Erosion .control was required bet.ween the shoreline and the building'. In addition to the engineering consideratio~s.where the function and maintenance considerations for the oonstruction. There was a sliding glass doorway in the lower level and a need to provide maintenance aooess for the lake side faoe of the construction. These req'~irement8 and engineering requirements were accomplished by constructing a near level grade with a retaining wall. The retaining wall also had a requirement to reduce lateral frost action against the wall. Therefore, the top of the grade had to be capped to minimize surface water runoff from percolating into the subgrade soils. .1 ./ Pag.. Two The paved patio 8.t'ea fulfills the cap requirement over the backf ill. It minim.izes the su'rface water infil tt's.tion to reduce frost action in the subgrade soils and it keeps water away from the fO\Jndation. It also provides erosion protection for the subgrade. j I I I, !I ~ i D'ltt'ing our observations on October 1, 2001, we observed a gap bet~eeJl the foundation wall and the patio slab. This gap should be sealed with a flexible joint sealant to prevent dirt and water migration into the gap. The saw joints in the patio also should be sealed with joint sealant. The patio slab extends to the outside edge of the retainj,ng wall. This construction detail minimizes water i~filtration bAhind the back of the retaining wall. Ii ~ou have any questions regarding our review, please contact us at 651-490,:,,9266. 'Respectfully, Professional Eoginze ing Consultants, Inc. I ~ -... /7 . /J ~. ~Y\'f 4~~14-t i ~jhn F. Gislason, r., P.E. Profe5sional Engineer I ~, JFG/fm cc: Allison Gontarek 952-447-5628, Fax . 1 , -, - .. - NOTICE OF HEARING TO CONSIDER litE FOLLOWING: VARIANCE TO EXCEED litE ALLOWABLE INPERVIOUS SURFACE COVERAGE AREA FOR AN EXISTING SINGLE FAMILY DWELLING ON PROPERTY LOCATED IN THE R-l DISTRICT (LOW DENSITY RESIDENTIAL) AND THE SHORELAND DISTRICT (SD) IDENTIFIED AS 15507 CALMUT AVENUE, PRIOR LAKE, MN, You are hereby notified that the Prior Lake Planning Commission will hold a public hearing at Prior Lake Fire Station #1, located at 16776 Fish Point Road SE (Southwest of the intersection of County Road 21 and Fish Point Road), on: Monday, December 10, 2001, at 6:30 p.m. or as soon thereafter as possible. APPLICANT: D. Mark Crouse 15507 Calmut Avenue NE Prior Lake, MN 55372 SUBJECT SITE: 15507 Calmut Avenue NE, Prior Lake, MN, legally described as Lot 9, and part of Lot 10, North Grainwood, Scott County, Minnesota REQUEST: The applicant is requesting a variance to allow an existing impervious surface coverage area of 46.39% of the lot area above the Ordinary High Water Mark. If you are interested in this issue, you should attend the hearing. Questions related to this hearing should be directed to the Prior Lake Planning Department by calling 447-9810 between the hours of 8:00 a.m, and 4:30 p.m. Monday through Friday. The Planning Commission will accept oral and/or written comments. Oral or written comments should relate to how the proposed construction and requested variances are or are not consistent with the Zoning Ordinance and variance hardship criteria, Prepared this 13th day of November, 2001. Steven Horsman City of Prior Lake To be published in the Prior Lake American on November 24, 2001. L:\01 files\01 variances\01-093\PUBLlCNOTE.DOC 1 16200 Eagle Creek Ave, S,E" Prior Lake, Minnesota 55372-1714 / Ph, (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER 4.. .. ..:.,~ :~k :.-.,..':;';~\~:;i?i-:~~~',;. .:: ..............___:................. ..:...--.l ..... DATE: I L/=<&/e ( ,; - ~ ' To: \_)~t~"pI\LJ,,\ ~#~bl-772-?17 {\w, @#. ~# NUMBER OF PAGES: & {including cover) FROM: ~.rL'~(.~ ~ FAX No.: 447 -4245 Notes/Cram The Sender: .. 1'JiW1 ~E-S~< CoJU 1M; ,dh'..ree'J. - 'lhd9! bJ),AIJ'.4 q,Si-- '-iY7~~N I' "\ Notice of Confidentiality The information transmitted with this facsimile is confidential and is intended only for the Individual or entity designated above, If you have received this facsimile erroneously, please notify sender immediately and destroy the transmission. , ' ~ ~.. .... PLEASE CALL ~ !-. ALL PAGES. AT?1(:1-"-W7....qe5L( IF You Do NOT RECEIVE 16200 Eagle Creek Ave. S,E,. Prior Lake. Minnesota 55372-1714 / Ph, (612) 447-4230 / Fax (612) 447-4245 AN E UAL OPPORTI1Nm' EMPLOYER Correspondence .. L:\TEMPLA TE\FILEINFO.DOC November 15, 2001 Ms. Allison 1. Gontarek Huemoeller & Bates, Attorneys P.O. Box 67 Prior Lake, MN 55372 RE: Notice Of Completeness For Variance Application Dear Ms. Gontarek: The Planning Department has reviewed and determined that your variance application is c'omplete. I will notify you of any pertinent issues, which may arise as a result of my preparation of the staff report. We have scheduled your request to be heard before the Planning Commission on Monday, December 10, 2001. The meeting begins at 6:30 p.m. and is located at the City Fire Station on the comer of County Road 21 and Fish Point Road. You or your representative is expected to be in attendance. If you cannot make the meeting, please let me know. You will be receiving a copy of the public notice and a copy of the staffreport with recommendation prior to the meeting. The City approval process can be substantially less than 120 days, and we intend to process your application in a timely manner that provides a complete and professional review, Occasionally, due to meeting schedules it is sometimes necessary to extend the 60-day review period. This letter also serves as your official notice that the City is extending the 60-day deadline for an additional 60 days from January 14,2002, till March 14,2002. If you should have any questions please call me at (952) 447-9854. ~Sinc,erelY' 1 '1~[~~ teven Horsman Zoning Administrator/Inspector CC: D. Mark Crouse, Property Owner 1:\01flles\01variances\01-Q93\cmpltltr,doc Page 1 16200 Eagle Creek Ave, S,E., Prior Lake, Minnesota 55372-1714 / Ph. (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER November 7, 2001 Ms. Allison J. Gontarek Huemoeller & Bates, Attorneys P. O. Box 67 Prior Lake, MN 55372 RE: Variance Application for D. Mark Crouse Dear Ms, Gontarek: On October 26,2001, the Planning Department received a variance application for an increase in impervious surface coverage area on the .t'~"'.Perty at 15507 Calmut Avenue. The following additional information is necessary to process your application: 1. Submit an updated certified list of 'p~....t'erty owners within 350 feet of the subject f . property. 2. What specific percentage of impervious surface coverage area is the applicant requesting? Ohce we have received the above information, we will process your application and schedule this item for a public hearing. If you have any questions, please phone me at 447-9854. Thank you for your cooperation on this matter. Sincerely, ~ Zoning Administrator/Inspector . L:\O Iflles\O 1 variances\O 1-093\Incmpltdoc 16200 Eagle Creek Ave, S,E" Prior Lake, Minnesota 55372-1714 / Ph, (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER January 24, 200).. Mr. D. Mark Crouse 15507 Calmut Avenue Prior Lake, MN 55372 RE: Revised survey depicting 38% Impervious surface area Dear Mr. Crouse: The City of Prior Lake Planning Commission approved an 8% variance for a 38% impervious surface coverage area on your }lJ.U}lerty at 15507 Calmut Avenue. One of the conditions of the variance resolution requires you to provide an updated survey depicting the impervious areas to be removed in order to comply with 38% coverage. ttI Please submit a revised certificate of surveyl as Attachment 1, to be included with the ".t't'.L'''' led variance resolution. The City will produce true copies that you shall record at the Scott County Land Records Office on or before March 22, 2002, or 60 days from January 22, 2002, when the City Council denied your appeal for a 46.4% impervious surface coverage area. Please be advised that failure to meet the conditions of a variance ".t'}lJ.oval may result in the revocation or cancellation of the variance as provided in Ordinance Subsection 1108.413. If you have questions call my direct dial phone number at (952) 447-9854. S~CerelY, ~. A . ~. ~-c'"'~ - ~~~::an . Zoning Administrator CC: Ms. Gontarek, Huemoeller & Bates, Attorneys At Law .. 1:\01f1les\01varlances\01-Q17\ressur1.doc Page 1 16200 Eagle Creek Ave. S.E., Prior Lake, Minnesota 55372-1714 / Ph. (952) 447-4230 / Fax (952) 447-4245 AN EQUAL UI"I"U.lU UNITY EMPLOYER December 5, 2001 Huemoeller & Bates Attn: Allison Gontarek 16670 Franklin TrI SE - #210 Prior Lake, MN 55372 D. Mark Crouse 15507 Calmut Avenue Prior Lake, MN 55372 RE: Agenda and Agenda Report Attached is a Planning Commission Agenda and Staff Report for the December 10, 2001 Planning Commission meeting. You or your representatives are expected to attend the meeting. You will be given the opportunity to speak regarding your proposal and the staff report. The meeting begins at 6:30 p.m. and is held at the Fire Station located at 16776 Fish Point Road (east of HWY 13 on the south side of CR 21). If you cannot attend the meeting, please call me so your item can be deferred to the next Planning Commission meeting. If you have any questions, please contact me at 447- 9810. Sincerely, CO'f\N\iet COU"~ Connie Carlson Planning Dept. Secretary Enclosure . I:\deptwork\blankfrm\meetltr.doc 16200 Eagle Creek Ave. S.E., Prior Lake, Minnesota 55372-1714 / Ph, (952) 447-4230 / Fax (952) 447-4245 AN EQUAL urrUr\l UNITY EMPLOYER ....;. :~k, '. .'.':';~~-;~~~;~.; ; .::. _.~.._--_..:..: -_...:.. . ::...-) DATE: ~ l - L(t> - e , ~ fil# To: AA~ r ~'1lI~ # L( t{?, 670 ze t~r4l'~4-~~@# .... NUMBER OF PAGES: 2- (including cover) FROM: ~~ ~ FAX No.: 447-4245 Notes From The Sender: ..fZe '. (')/{)J~e. I/AA. .~~ r Notice of Confidentiality The information transmitted with this facsimile is confidential and is intended only for the individual or entity designated above. If you have received this facsimile erroneously. please notify sender immediately and destroy the transmission. ) " ' '\ PLEASE CALL" ~~ ALL PAGES. ATC,;5.t-- LlLl1-q~ IF You Do NOT RECEIVE 16200 Eagle Creek Ave. S.E., Prior Lake. Minnesota 55372-1714 / Ph, (612) 447-4230 / Fax (612) 447-4245 AN E UAL OPPORTI1Nm' EMPLOYER HUEMOELLER & BATES ATTORNEYS AT LAW POST OFFICE BOX 67 PRIOR LAKE, MINNESOTA 55372 Telephone: 952,447.2131 Facsimile: 952.447.5628 E-mail: huemoellerbates{@.aol.com SEP 2 6 2001 BRYcED.HUEMOELLER JAMES D. BATES ALLISON J. GONTAREK OF COUNSEL: CHARLES C. HALBERG September 25,2001 Mr. Steve Horsman Prior Lake Planning Department 16200 Eagle Creek Avenue Prior Lake MN 55372 By Facsimile and U.S. Mail Re: D. Mark Crouse - Application for Variance No. 01-017 Dear Mr. Horsman: Please consider this letter as a request for your department to disregard my September 14 letter of appeal directed to Mr. Rye, Planning Director. We were under the impression that a fmal decision had been reached at the September 10 Planning Commission meeting which required an appeal within 5 days. I apologize for the misunderstanding and appreciate you contacting me before publishing the notice. Thanks! r?', ~IY yours, J~~ Allison J. Gontarek . HUEMOELLER & BATES ATTORNEYS AT LAW POST OFFICE BOX 67 PRIOR LAKE, MINNESOTA 55372 Telephone: 952.447.2131 Facsimile: 952.447,5628 E-mail: huemoellerbatesla2aol.com BRYCE D. HUEMOELLER JAMES D, BATES ALLISON J, GONTAREK OF COUNSEL: CHARLES C, HALBERG October 26, 2001 Prior Lake Planning Commission 16220 Eagle Creek Avenue Prior Lake MN 55372 Via Hand Delivery Te; ," f)(~ . i .~~. t2j Re: Request for variance from D. Mark Crouse for increase in impervious surface limitationfor 15507 Calmut Avenue Dear Planning Commission Members: The purpose for this letter is to address the hardship criteria and the need for a variance, above the variance for 38% impervious surface granted for a reasonable driveway, on the above property. This is a situation familiar to both staff and the Commission members. We respectfully address the nine hardship criteria and how they apply to Mr, Crouse's property. First, Mr. Crouse's property is a narrow, non-confv,u.J..Jng lot, left over from a railroad right of way and other larger developments. It required two variances to upgrade the existing house built in 1978. Mr. Crouse took the original structure, raised it to meet the current code for elevation requirements, and developed it in a manner customary within the neighborhood in which he is located. Second, when Mr. Crouse built his house, the pcuu.it issued allowed for a three car garage. At the time of construction, a hard surface driveway was not required by ordinance. It has now been detca.w.ined and agreed that a reasonable driveway, allowing for access to the.third garage stall increases the need for impervious surface to 38% of the lot. Similarly, there is attached a report by an engineering expert explaining the requirement for a "cap" on the area between the house and the adjacent lakeshore. The report states that raising the elevation to meet code required the exterior backfill to be raised and stabilized for structural support and erosion control. The need for additional . Prior Lake Planning Commission Page 2 October 26. 2001 impervious surface to create a useable driveway and to provide for a cap to ensure stability between the house and the lakeshore are two conditions that arise from the unique shape, size and proximity of the lot to the adjacent lakeshore, and that do not apply, generally, to other land or structures in the Shoreland District. Third"the variance, as requested, is necessary to (1) provide access to a garage that was built under permit, and (2) structurally support the house. Without receiving the requested variance, Mr. Crouse is denied access to his garage and his property is subject to damaging erosion. Fourth, the proposed variance will not impair in any manner either the supply of light or air to the adjacent property, unreasonably increase the congestion in the public streets, increase the danger of fire, or endanger public safety. Fifth, attached to this letter are signed statements made by Mr. Crouse's neighbors as to the benefit his improvements to his property have had on the neighborhood. Sixth, the granting of the variance request will preserve the spirit and intent of the Prior Lake Zoning Ordinances by contravening the undue hardship created by conditions unique to the property due to its shape and size and proximity to the 1akeshore. Seventh, it is the expert opinion of a qualified engineer that frost action and erosion must be minimized between the structure and the retaining walL This is not a convenience issue, it is a structural requirement. Eighth, the lit;n.itation of impervious surface for lots in the Shoreland District.is an essential part of management of the natural resources in and around Prior Lake. ' However, strict application of the Ordinances creates hardship for unusual and non- conforming lots. Mr. Crouse purchased an undersized platted lot of record. He applied for and was granted a permit to raise and add on to the existing home which created approximately 28% impervious surface over his lot He raised the house to comply with the current code for old and new elevation. Complying with the elevation requirements of the code created structural problems for the approved structure. Resolving the structural problems adds to the impervious surface problem (that did not exist when the parcel was originally created and improved). Complying with new driveway requirements compounds the impervious surface problem. The hardship results from the application of the old and new ordinances requiring a paved driveway and applying the new elevation requirements to an existing building footprint. Ninth, this has been a very expensive journey for Mr. Crouse. He will have to expend more money once the variance is dek:u.uined to remove concrete he paid to have Prior Lake Planning Commission Page 3 October 26. 2001 installed. Although economic hardship alone is not the basis for approving a variance request, the statute allows consideration of the economics involved. Finally, the issue of whether the need for the variance is attributable to the applicant. We submit thatthe need for a variance here results from the combined impact of old and new ordinances on this property. Long after the size, shape, location and use of this property were established, a series of new laws on lot sizes, setbacks, paved driveways, minimum elevation, maximum impervious surface, and the like, have made variances a necessity. Complying with one law, requires variances of another. The problem is with the inter-related restrictions, and not with the actions of the applicant to comply with the laws. The need for a variance now arises from a previous lawful action by the applicant - remodeling an existing house with an approved building p\J.l.L.Ui.t. It does not seem that the lawful actions of a homeowner should provide the basis for the denial of a subsequent variance, where the need for the variance is the result of subsequently adopted laws. To promote the most appropriate and orderly development within the community, the Minnesota statutes authorize zoning ordinances and allow for the Board of Adjustment: To hear requests for variances from the literal provision of the ordinance in instances where their strict enforcement would cause undue hardship because of circumstances unique to the individual property under consideration, and to grant such variances only when it is demonstrated that such actions will be in keeping with the spirit and intent of the ordinance. Minn. Stat. ~462.357, Subd. 6(2) (emphasis added). Case law states that "[t]he statute is clearly intended to allow cities the flexibility to grant variances where. . . the property owner would like to use the property in a reasonable manner that is prohibited by the ordinance." Rowell v. Board of Adiustment of the City ofMoorhea<L 446 N.W.2d 917, 922 (Minn. Ct. App. 1989). The "correct standard is whether the proposal was reasonable under the circumstances, and would not be allowed except by granting the variances." Nolan v. City of Eden Prairie. 610 N.W.2d 697, 701 (Minn. Ct. App. 2000). Mr. Crouse should be able to use and protect his property in a reasonable manner. Accessing his garage is reasonable, preventing erosion that could destabilize his foundation is reasonable. The issue of granting a variance after the fact as opposed to consideration of a proposed use is difficult. We respectfully request the Commissioners consider whether it is reasonable to potentially compromise the structural stability of a permitted home based on the timing of the request for a variance. Prior Lake Planning Commission Page 4 October 26. 2001 Based on the principles set forth under Minnesota statutes and the Rowell and Nolan decisions,.we believe the Planning Commission should find as follows: 1. Literal enforcement of the Prior Lake Zoning Ordinances will result in undue hardship with respect to the Crouse property because it will preclude the preservation and enjoyment of Mr. Crouse's property rights, including a driveway to serve his property as required by ordinance and a concrete. slab that is necessary for structural support. 2. The undue hardship results from the circumstances unique to the property because of the shape and size of the lot and its proximity to the lakeshdre, as evidenced by the granting of variances in 1978, 3. The undue hardship is caused by the provisions of the Prior Lake Zoning Ordinances and is not the result of the actions of the owner, because the owner's use of the land is reasonable and the literal application of the ordinance would preclude such reasonable use. 4. A variance preserves the spirit and intent of the Prior Lake Zoning Ordinance, produces ,substantial justice and is not contrary to the public interest, because the reasonable use is consistent in all respects with the existi.r1g and proposed land use in the neighborhood, and provides an enhancement to the neighborhood as a whole. We respectfully request that the Planning Commission approve the requested variance to increase the impervious surface limitation on Mr. Crouse's property to 46.5% to allow for a reasonable driveway and the erosion control provided by the cap be~een the house and lakeshore. . Ve!)' truly yours, WlO)t)" :r:. ~n+(4rllk_ Allison ], Gontarek .i/~....; ,., "', .,~ . I i \ IJ .. AJG:cak Attachments cc: D, Mark Crouse ~iscellaneous .. L:\TEMPLATE\FILEINFO.DOC City of Prior Lake Planning Commission Variance Requests for property located at 15507 Calmut Ave NE Case File #01-017' Pronerty Owner Comments and Opinions from neighbors within 350' radius Mark IL Kassebaum 40185 154th Street NW Prior lake, MN 55372 Planning Report Item #5 - The granting of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair established property values in the surrounding area, or in any other way impair the health safety and comfort of the area. "The granting of the variances will adversely affect the above stated values by Increasing structure encroachmepts upon the Jakeshore and thereby affecting the adjacent properties and the Intent of the setback averaging regulations," Agree: _ Disagree: i Comments: Planning Report Item #7 - The granting of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. "The granting of the variance requests appears to serve as a convenience to the applicant." Agree: _ Disagree: ~ Comments: Should the following variances re~,sted be approved? Impervious Surf~~ - YES: + NO: _ Setback - YES: ..::: NO: _ COMMENTS: Signed: ~~k~~c / - _ Dated: ~ /ZL/ /0/ . . City of Prior Lake Planning Commission Variance Requests for property located at 15507 Calmut Ave NE Case File #01-017 Property Owner Comments and Opinions from neighbors within 350' radius - 4215 rEau C~a~re Tra~i NIE Prior lake, M~ 55372 Planning Report Item #5 - The granting of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair established property values in the surrounding area, or in any other way impair the health safety and comfort of the area. . "The granting of the variances will adversely affect the above stated values by Increasing structure encroachments upon the lakeshore and thereby affecting the adjacent properties and the Intent of the setback averaging regulations." ~'::.nts: Disagr.([;:~ Planning Report Item #7 - The granting of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. ~a~the variance reque:;;::~ars to serve as a convenience to the applicant." ~gre"~; DiSagree.q//, Com;~ t- ____ Should the following variances requpsted be approved? Impervious Surf~~e - YES: ~, NO: _ Setback - YES: ~ NO: COMMENTS: Signed: /~ ( /" ,,' >...."....(-.,;. I . ,9 if /' ~-:J .- ~t"? d-v; 1/....><... {. \' r~ . J f hi , " ," > i'J f'I '6.~'~" Dated: / ~,0 /F ~"v&~ Cht~./LC- TitS!. . 1r/;;y)Df City of Prior Lake Planning Commission Variance Requests for property located at 15507 Calmut Ave NE Case File #01-017 Property Owner Comments and Opinions from neighbors within 350' radius 'Jerome A. Mmer 15563 Ca~mut Ave NE Prior lakei M~ 55372 Planning Report Item #5 - The granting of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair established property values in the surrounding area, or in any other way impair the health safety and comfort of the area. "The granting of the variances will adversely affect the above stated values by Increasing structure encroachments upon the lakeshore and thereby affecting the adjacent properties and the Intent of the setback averaging regulations," Agree: _ Disagree: 't.. Comments: Planning Report Item #7 - The granting of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. "The granting of the variance requests appears to selVe as a convenience to the applicant." ,.. Agree: _ Disagree: )t Comments: Should the following variances requ~sted be approved? Impervious Surface - YES: ~ NO: _ Setback - YES: )<J NO: COMMENTS: Signed: .#tJrv ~ .f41Jrdk Dated: {(zLf(P I City of Prior Lake Planning Commission Variance Requests for property located at 15507 Calmut Ave NE Case File #01-017 Property Owner Comments and Opinions from neighbors within 350' radius Wayne Cragg' ~ 1.67 IEau C~aDre Trag~ mor lake, MN 55372 Planning Report I~em #5 - The granung of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair established property values in the surrounding area, or in any other way impair the health safety and comfort of the area. . "The granting of the variances will adversely affect the above stated values by increasing structure encroachments upon the lakeshore and thereby affecting the adjacent properties and the Intent of the setback averaging regulations," Disagree:/' Agree: _ , Comments: Planning Report Item #7 - The granting of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. "The granting of the variance requests appears to serve as a convenience tp the appllcant." Agree: _ Disagree:2( Comments: Should the fOll~. w' ' variances re'\.u,sted be approved? Impervious Su e - YES: )S.. NO: _ Setback - YES: , NO: _ COMMENTS: Signed: d IVL~ D , Dated: City of Prior Lake Planning Commission Variance Requests for property located at 15507 Calmut Ave NE Case File #01-017 Property Owner Comments and Opinions from neighbors within 350' radius Mark A. Michael 4. ~ 90 lEau Claire Trail Prrior lake, MN 55372 Planning Report Item #5 - The granting of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair established property values in the surrounding area, or in any other way impair the health safety and comfort of the area. "The granting of the variances will adversely affect the above stated values by Increasing structure encroachments upon the lakeshore and thereby affecting the adjacent properties and the Intent of the setback averaging regulations." Agree: _ 'Disagree: ')c Comments: ,L... j iCIY _~~~\\~ ~., Q,.p~'5 ~5Yl,.t../ ~~" i r tJ... ~ L Of; '(~ W~~ .~C\nb.~ .+h.Q..1K'~i\( "'a1.~.;'!i O~ ~\Q. N,~9hb:v\'\~ Planning Report Item #7 - The granting of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. "The granting of the variance requests appears to serve as a convenience to the applicant." Agree: _ Disagree: )(. Comments: Should the following variances requested be approved? Impervious Surface - YES: )(' NO: _ Setback - YES: X NO: COMMENTS: Sign.~~ (~ " / Dated: tp/ut/Oi City of Prior Lake Planning Commission Variance Requests for property located at 15507 Calmut Ave NE Case File #01-017 Property Owner Comments and Opinions from neighbors within 350' radius l~wrreli1oo G. w~mams 15520 C~~mut Avre Prior l~krej MN 55312 Planning Report Item #5 - The granting of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair establiShed property values in the surrounding area, or in any other way impair the health safety and comfort of the area. "The granting of the variances will adversely affect the above stated values by Increasing structure encroachments upon the lakeshore and thereby affecting the adjacent properties and the Intent of the setback averaging regulations," Agree: _ Disagree: v"" Comments: Planning Report Item #7 - The gran~g of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. "The granting of the variance requests appears to serve as a convenience to the applicant" Agree: _ Disagree: ~ Comments: Should the following variances requCJted be approved? Impervious Surfac, - YES: ~ NO: _ Setback- YES:.1( NO: _ . CO~~ ~. tk ctd ~..fJ ~ tthuP tku- ~ fk J !Via ~ Lftu ~ -flr ~ -#d:- ~ .r j! ;JA~ cJ~ Signed: Jb.rJ.AM\.t k\~~ Dated: ~;8 I () I City of Prior Lake Planning Commission Variance Requests for property located at 15507 Calmut Ave NE Case File #01-017 ' Property Owner Comments and Opinions from neighbors within 350' radius Dorna~d l. Todd 15593 Ca~mutAYre NE Prior lakel MN 55372 Planning Report Item #5 - The granting of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair established property values in the surrounding area, or in any other way impair the health safety and comfort of the area. "The granting of the variances wl1l adversely affect the above stated values by Increasing structure encroachments upon the lakeshore and thereby affecting the adjacent properties and the Intent of the setback averaging regulations," Agree: _ Disagree: / Comments: Planning Report Item #7 - The granting of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. "The granting of the variance requests appears to serve as a convenience to the applicant." Disagree: V' Agree: _ Comments: Should the following variances req~e approved? Impervious Surface y YES: _ NO: _ Setback - YES: ~ NO: _ COMMENTS: Si~1Ji; Dated: I ~S-:~I City of Prior Lake Planning Commission Variance Requests for property located at 15507 Calmut Ave NE Case File #01-017 Property Owner Comments and Opinions from neighbors within 350' radius Jeffrey J. DOlllsette 15581 Ca~mlllt Ave NfE Prior lake>> MN 55372 Planning Report Item #5 - The granting of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair established property values in the surrounding area, or in any other way impair the health safety and comfort of the area. "The granting of the variances will adversely affect the above stated values by Increasing structure encroachments upon the lakeshore and thereby affecting the adjacent properties and the Intent of the setback averaging regulations." Agree: _ Disagre~ Comments: Planning Report Item #7 - The granting of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. "The granting of the variance requests appears to serve as a convenience to the applicant." Agree: - _ Disagree: .x Comments: Should the following variances requested be approved? Impervious Surface - YES: ~ NO: Setback - YES: 2:::- NO: COMMENTS: /" ~ /' Dated: o/:.?p / / / City of Prior Lake Planning Commission Variance Requests for property located at 15507 Calmut Ave NE Case File #01-017 Property Owner Comments and Opinions from neighbors within 350' radius Srott G. Miller 4143 Eau Claire Trail N E Prior lakel MN 55372 Planning Report Item #5 - The granting of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair established property values in the surrounding area, or in any other way impair the health safety and comfort of the area. "The granting of the variances will adversely affect the above stated values by Increasing structure encroachments upon the lakeshore and thereby affecting the adjacent properties and the Intent of the setback averaging regulations." Agree: _ Comments: Disagree: / Planning Report Item #7 - The granting of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. "The granting of the variance requests appears to serve as a convenience to the applicant." Agree: _ Disagree:.V' Comments: Should the following variances requested be approved? Impervious Surface - YES: L NO: Setback- YES:/' NO: COMMENTS: Signed: ~~ ... Dated: ~,~( oC City of Prior Lake Planning Commission Variance Requests for property located at 15507 Calmut Ave NE Case File #01-017 Property Owner Comments and Opinions from neighbors within 350' radius Frank J. Worrell 4185 lEaijJ Claire Trai~ Prior lake, MN 55372 Planning Report Item #5 - The granting of the Variance will not unreasonably impact on the character and development of the neighborhood, unreasonably diminish or impair established property values in the surrounding area, or in any other way impair the health safety and comfort of the area. "The granting of the variances will adversely affect the above stated values by Increasing structure encroachments upon the lakeshore and thereby affecting the adjacent properties and the intent of the setback averaging regulations," Agree: _ Disagree~- Comments: Planning Report Item #7 - The granting of the Variance will not merely serve as a convenience to the applicant but is necessary to alleviate a demonstrable undue hardship or difficulty. "The granting of the variance requests appears to serve as a convenience to the applicant." Agree: _ Disagre~ Comments: Should the following variances requested be approved? Impervious Surface - YES:~ NO: Setback - YES.~'/ NO: COMMENTS: Signed:~A A;~~ (!.JJ~ L -:2 <r - Or . . . D. MARK CROUSE VARIANCE APPLICATION FACTS: 1. The work is done 2. Owner is willing to work with City 3. Excellent site to do alternate infiltration demonstration/design ARGUMENTS: 1. Hardship criteria 2. Reasonable use 3. Due Process Violations SOLUTIONS: 1. Brave - set conditions on variance to require alternate infiltration to bring actual impervious surface runoff to < 30% 2. So-So - leave variance at 38% and lose opportunity to benefit from knowledge to be gained by the use and monitoring of new infiltration technologies . . . .. PROPOSAL BY D. MARK CROUSE 15507 CALMlJl' AVENUE NE TO PRIOR LAKE PLANNING COMMISSION September 10, 2001 Based on the application for an increase in impervious surface on the above refc..l.c.J..Lced property, the following is proposed: 1. That approximately 1,000 square feet of concrete be removed at owner's expense; 2. That an infiltration system be designed using alternative infiltration devices or a drainage easement be acquired for drainage rights onto the outlot immediately adjacent to the property or some combination ofinfilL.a~on system combined with drainage easement be formulated by the owner to meet or exceed the runoff management intent of the impervious surface limitation; 3. That the engineered design be approved by this Commission upon engineering analysis demonstrating that the runoff management plan meets the 30% impervious surface calculation for the above referenced property. - City Farmer:Rain Barrels Page lof8 . Published by City Farmer, Canada's Office of Urban Agriculture Rain Bai"l'els Michael Levenston Executive Director City Farmer (C) Copyright: City Farmer Food gardens need water and what better way to give plants a dri~k than with soft, warm, oxygen-filled rainwater straight from the rain barrel. Even just a wee bit saved in a barrel after a storm, then transferred to a watering can, will slake the thirst of a balcony of plants. And you, the recycler, will feel especially good knowing that you are diverting water that would otherwise flow out into the storm sewers. . City Farmer has been chosen by Vancouver's City Hall to display and help promote a rain barrel distribution program. City Makes Rain Barrels Available to Save Water City of Vancouver Rain Barrel The City of Vancouver is providing subsidized rain barrels for up to 1,000 residents under a pilot program to conserve water. The Green Barrel pilot program will offer Vancouver residents (City of Vancouver - only) a 75-gallon plastic rain barrel for - $58.06 including taxes. This is half the regular cost. . Citv of Vancouver rain barrel now available to people outside Vancouver (not subsidized). (February 2001). Residents can use the specially-designed barrels to collect rain water from downspouts for lawn and garden irrigation. . ,http://www.cityfarmer .org/rainbarre172.html 09/08/2001 . City Farmer:Rain Barrels Page 2 of 8 . Lawn and garden watering make up almost 40 per cent of total household water use during the summer. It's expected that each barrel will save about 1,300 gallons of water during the peak summer months when demand for water is high and precipitation is low. The barrels are easy to install. They come with outlets for both watering cans and hoses, and are designed with child-proof openings. Vancouver Rainbarrel Vancouver residents can call the City's Water Conservation Hotline at 873-7350 for information on obtaining a barrel. Residents can also visit City Farmer, at the City of Vancouver's Compost Demonstration Garden, at 2150 Maple Street to see the rain barrels in use. Further information: Jeff Smyth jeff SInyth(fiJcity. vancouver. bc.ca Waterworks Design (604) 871-6144 . Rainbarrel Links on the Int...:... uet: Thanks to Lisa Tayior of Seattle Tilth Association for many of these links. Rain Barrel Information and Sources for the Pacific Northwest The Water & Land Division of the King County Depa...uuent of Natural Resources Rainwater Harvesting information City of Seattle Water Conservation information Texas Rain Harvesting Garden Watersaver "The Garden Watersaver is an automatic rain water collection system that has advantages over other rain water collecting systems." Soruce Creek Rainsaver Rain Barrels made bv Arbour . Collect Rainwater for Gardening. Aquariums. and Pets Green Culture's Water Savers , http://www.cityfarmer.org/rainbarreI72.html 09/08/2001 City Farmer:Rain Barrels Page 3 ofB . Dan Borba's Rainbarrels Annroved Rainbarrel Sunnliers Great American Rain Barrels Rain Barrels Rain Pail Real Goods Rain Barrel (Type in "Rain") Portland Rainbarrel Rainwater to Drinkin2 Water . "The biggest issue in collecting rainwater is keeping it free of muck such as leaves, bird droppings and dead animals, and avoiding contamination with pollutants like heavy metals and dust." From the Sustainable House "In 1996, a Sydney family set out to renovate their 100 year old terrace house in the inner- city suburb of Chippendale. With a bit of vision, some common sense, and a lot of tenacity, they built what most of us would think impossible... a house in the middle of Australia's biggest city that produces its own power and water, and reuses its sewage on site." CMHC's Healthv HouSe in Toronto Melbourne Water Autonomous House The Camnus Center for Annronriate Technology: - .- - -. -. Oasis Design Ecological Design Consulting Water. Wastewater & Solar Syste~ Edible Landscanine-. Grevwater Books - - - - City of Etobicoke Utility Engineering 399 The West Mall Etobicoke, Ontario, M9C 2Y2 Phone: (416) 394-B379 . City of Toronto , http://www.cityfarmer.org/rainbarreI72.html 09/08/2001 City Farmer:Rain Barrels Page 4 of8 . Public Works 100 Queen St. West, 14th Floor Toronto, Ontario, MSH 2N 2 Phone: (416) 392-7660 Fax: (416) 392-7874 Downspout Disconnection Program (Phone: (416) 392-1807 . The Rain Saver from Water Conservation Technology P.O. Box 121, Sydenham, Ontario KoH 2To Canada The International Rainwater Catchment Systems Association (IRCSA) - The IRCSA is a new association aiming to link those with an'interest in the direct collection of rainwater and its storage for domestic and agricultural supply. The seeds for the establishment of the Association were first sown when the first International Rainwater Cistern Systems Conference was convened in Hawaii in June 1982 by Prof. Fok. Subsequent International. Conferences have followed on a two-yearly basis and were held in the US Virgin Islands (1984), Thailand (1987), Philippines (1989), Taiwan (1991), Kenya (1993) and China (1995). . . "Whilst rainwater catchment systems have long been utilised in some parts of the Caribbean, Middle East and Australia, in other places its potential has only recently been realised. During the last decade, Thailand and Kenya, for example, have led their respective continents , http://www.cityfarmer.org/rainbarreI72.html 09/08/2001 . . . City Farmer:Rain Barrels Page 50f8 in demonstrating the enormous potential of this technology. In Thailand more than 10 million two thousand litre ferrocement roof , catchment tanks have been constructed since 1985 for domestic water supply, while in Kenya the construction oflarge (10 to 100m3) ferrocement tanks has gained popularity in many regions with thousands being built at schools, clinics and private homes. "Utilisation of rainwater catchment systems has also been spreading in other parts of Asia (e.g. Nepal, Bangladesh, India and the Philippines) as well as in Africa (e.g. Botswana, Mali and Tanzania). In industrialised countries too interest in rainwater collection is growing as demonstrated by recent developments in Australia, Hawaii and Singapore. Japan has traditionally used rainwater catchment systems and is currently making adjlliiUuents to meet the requirements of urban environments." IRCSA Membership Account: c/o International Water Resources Association 1101 West Peabody Drive Urbana IL 61801-4723 USA More Information: Mr. John E. Gould Secretary-General (IRCSA) University of Botswana P /Bag 0022 Gaborone, Botswana Further Reading: Raindrop (Newsletter of the IRCSA) Tokyo International Rainwater Utilization Conference Rainwater & You "100 Ways to Use Rainwater" by Group Raindrops Organizing Committee for the Tokyo International Rainwater Utilization Conference Sumida City Office Building - 1-23-20 Azumabashi, Sumida City Tokyo 130, Japan 1995, 176 pages "', .R' _(~I...l-: \....-1 .' I ",." r \ ,:v:. , " '- - ~ ,." .- "It is,estimated that 60% of the world population will concentrate into urban areas by the middle of the 21St century. ..., Population in Asia, Africa and Latin America will continue to concentrate into large cities and, as a result, those cities will . http://www.cityfarmer.org/rainbarre172.html 09/08/2001 . C'ity Farmer:Rain Barrels Page 6of8 . confront the problem "Urban Droughts and Urban Floods". ... A new rainwater culture is required in which cities can live more harmoniously with rain." (from the forward by Makoto Murase, Conference Secretary-General) Also available from the above office: Excerpts of Questions & Answers Tokyo International Rainwater Utilization Conference March 1995, 41 pages The rain faIling on the roof of the Sumida City Office, an 18-storey building completed in 1990, is collected in an underground 1000 m3 tank. The drainage from the bathrooms and restaurants in the building as well as the rainwater, is sterilized and used for flushing toilets. According to data from 1993, the amount of water used for flushing toilets for that year was about 13,600m3. 7000m3 of that was rainwater, and recycled drainage accounted for 4000m3. This means that within the City Office alone, 11,000m3 of water were saved during that one year. This amount is equivalent to the amount of water needed to fill approximately 55,000 family bathtubs (200 liters) . . Water-Saving Devices Compiled by Lone Hansen, Andrew Giles BSRIA (The Building Services Research and Information Assoc. Bracknell, Berkshire, UK One of six reports in a series on Environmentally Friendly Systems and Products Published in October 1997, 49 pages This series of reports was funded by the DepaJ.wJ.ent of Trade and Industry and a group of industrial sponsors. Market report now available from BSRIA, priced f:250. Contact Rachel Slater or Peter Cooke Tel: +44 1344426511, Fax: +44 1344487575 PeterCo@)bsria.co.uk The Water Saving Devices report reviews the market for these products ~ world-wide, assesses their market potential in the UK and examines what can be - done to increase the uptake of this technology. Those water saving devices analysed in the report include: . · Rain water recycling products/systems · Grey water recycling products/systems . Waterless urinals "There are two categories of waste water: grey and black water. Grey water is all ,http://www.cityfarmer.org/rainbarreI72.html 09/08/2001 City Farmer:Rain Barrels Page 70f8 . waste water from baths, showers and hand basins, domestic appliances and fittings. Black water is fouled water from toilets and bidets. The grey water that can be recycled is approximately 26% of the average consumption in a domestic dwelling (or 47% if the washing machine is included). The water used for toilet flushing is approximately 33% and outside use is approximately 3% of the average consumption. Grey water for toilet flushing can be supplemented. by mains or rain water. The pay back time for grey water systems using waste water for toilet flushing is between 7 and 15 years depending on capital costs (~500- ~1,000) and based on an average price of ~1.28 per M3. The pay back time is ' reduced to 4-8 years in the South West where the price per M3 is ~2.30. The payback time for grey water systems is shorter than rainwater systems but the manufacturers/installers need to 'consider the end users perccpG.on and attitude, health and safety aspects and legislation and planning pCJ.1l.lission. II Envirosink "Envirosink is an environmentally helpful additional, or secondary sink that utilises all standard plumbing fittings. Envirosink allows you to conserve the 'light' gray water from your kitchen. Envirosink is the only system that allows some catchment of water at the kitchen sink -- to help fill your rain barrel in the dry season. " . Be.. u..uda "Here in Bermuda all residential properties catch rainwater on the roof. This is constructed of lapped limestone slate on a timber frame. The water collected drains down into a water tank which is located beneath the house. The general rule of thumb is that the tank must be large enough to hold, in gallons, an amount calculated by multiplying the roof area of the house by eight and a quarter. This water collection system has been in use for many, many 'years." (Depfu.l.1l.lent of Planning, Bermuda) DepaJ.l.1l.lent of Planning Government Administration Building 30 Parliament Street, Hamilton HMI2, Bermuda Phone: (809) 295-5151 Fax: (809) 295-4100 . Rainwater Collection Systems Videotape and Booklet, revised 1995 Morris Media Associates, Inc. 4306 Wildridge Circle Austin, Texas 78759 USA http://www.cityfarmer.org/rainbarre172.html 09/08/2001 City Farmer:Rain Barrels Page 8 of8 . "Rainwater Collection Systems is the story of three families from the Texas Hill Country who collect rainwater for all their household needs, including drinking. And they would say 'especially' drinking! 'When emergency room physician Dr. Mike McElveen and his wife Kathy decided to collect enough rainwater for all their needs, their system became the model for others in their area to follow. A 50 page booklet accompanies each half-hour video.' Emergency Water, Soft Water, Chemical Free Water from PI~bo Non mechanical rain water diverter used to collect water for chlorine sensitive plants. New Feature! Search Our Site- ~ Return to Contents' Paae ~ . Revised Hay 28, 2001 Published by City Farmer Canada's Office of Urban Agriculture citvfarm@interchanQe.ubc.ca . http://www.cityfarmer.org/rainbarreI72.html 09/08/2001 Rain Gardens Page 1 of 9 . Visit the 'Friends of Bassett Creek' W ebsit~ ---- Rain Gardens -__I-. - - - - This Raingarden Pamphlet in Adobe Acrobat PDF Format (1.2m) - _ _ _ Gardening with Water Quality in Mind . When you make a garden a "rain garden" you can improve local water quality while creating a beautiful natural area that will attract birds and' butterflies. Rain gardens allow rain and snowmelt to seep naturally into the ground. This helps recharge our groundwater supply, and prevents a water quality problem called polluted runoff. Rain gardens are an important way to make our cities more attractive places to live while building urban ecological health. What makes a garden a rain garden? All it takes is a few simple steps in the following three areas: . Landscaping: - Rain gardens are designed with a dip at the center to collect rain and - snow melt. Any degree of indentation is useful, from slight dips made with your garden trowel to large swales created by professional landscapers. Neatly trimmed shrubs, a crisp edge of lawn, stone retaining walls and other devices can be used to keep garden edges neat and visually appealing. . Location: , http://www.mninter.net/....stack/rain/index.htm 09/08/2001 Rain Gardens Page 2 of 9 . Strategic placement next to hard surfaces such as alleys, sidewalks, driveways and under gutters makes your rain garden effective. Following you will find descriptions for how rain gardens can work in the front, side and back sections of your property. Plant choices: Hardy native species that thrive in our ecosystem without chemical fertilizers and pesticides are the best choices. Many rain gardens feature shrubs as well as wild flowers and grasses. As a rule, the less "turf' on lawns, the better it is from a water quality stand point -- turf- style lawns create a harder surface which does not absorb water as readily as garden areas. Also, turf-style lawns often require chemical treatments and extra water to look uniform. Yards that feature native plants, grasses and shrubs are much easier to maintain. What is polluted runoff? . Polluted runoff is a big problem in urban areas where much of the ground is covered with hard surfaces such as roofs, streets, parking lots and sidewalks. Before development, rain and snow melt seeped slowly into the earth. Now water flows quickly across hard surfaces, picking up pollutants -- from organic particles, pesticides, fertilizers, gas, oil and other types of residue -- before dumping into storm drains. O~ce in the storm sewer system the welter flows into local lakes and streams. In most cases it is not treated or cleaned in any way. Here in the Twin Cities almost all storm water eventually ends up in the.Mississippi River -- our precious, world-class resource that is also the source of much of our drinking water. Front yard gardens: . Gardens along the front of homes and businesses are particularly useful fro~ a water quality and aesthetic standpoint. Their proximity to the street makes front yard gardens an effective place to collect water that has run off of your roof, yard, driveway and sidewalk before it hits the stormwater system. Because they are highly visible to people passing by , http://www.mninter.net/-stack/rain/index.htm 09/08/2001 Rain Gardens Page 3 of9 on the street or sidewalk, front yard raingardens also add to the beauty . of the neighborhood. ' . . - If the rainwater collection area is larger and the raingarden smaller, , http://www.mninter.net/....stack/rain/index.hbn 09/08/2001 . . . Rain Gardens Page4of9 then in some cases overflow or excess standing water may become a problem. Small culverts and/or swales may be useful in these cases to move excess water from one raingarden to another that has extra capacity. There may even be a c01.J.lluunity raingarden that receives water from a number of adjacent properties. Front yard gardens can be created: . At the end of the roof gutter to capture run off from the roof. · Along front walkway to keep runoff from traveling down the sidewalk and into the storm sewer. . Along the city sidewalk to act as a buffer between your lawn and the street. · On the city-owned boulevard to stop runoff from entering the street. Property owners with front yards that slope to the sidewalk may choose to incorporate stone walls. With the addition of wall features, collection points can become deeper and more useful from a water filtration stand point. If the wall is decorative and combined with neatly edged turf, the area will be beautiful throughout the year. Side yard gardens: Gardens along the side of your home or business can catch runoff from your roof, create a "living fence" between properties and channel runoff to front or back yard gardens. Some homeowners create wide side yard gardens that become wider still in the back yard. This style of garden can minimize the amount of "turf' in your back yard that needs to be mowed. Creating wild areas along the side of your house ensures that you can look out your window and see beautiful plants, birds and butterflies. Don't plant tall shrubs right next to your windows if you are concerned about people hiding there. Also, make sure dips for , capturing runoff channel water away from your house to avoid basement flooding problems. Back yard gardens: Back yard gardens can keep water from running down the alley and into storm sewers. Like side yard gardens, back yard gardens can also help minimize the amount of high-maintenance turf-style lawn on your property. Most people place their largest gardens in the back yard. If . http://www.mninter.net/.-.stack/rain/index.htm 09/08/2001 . . . Rain Gardens Page 5 of 9 you already have a large back yard garden, you can easily add a water filtration component by creating dips that will hold and filter water. . In any location, a rain garden's basic feature is a dip or swale. Shrubs are often planted at the center and surrounded by wild flowers. Q: - How do I turn a section of my yard into a rain garden? A: - Simply remove sod, dig a shallow depression and plant with native plants. Q: - Don't rain gardens attract a lot of mosquitoes? A: - Not really. Mosquitoes thrive and breed in standing water. Most mosquitoes breed in places like junk-piles where there are old tires or tin cans. There is rarely standing water in a well-designed rain garden. Q: - Can I create a rain garden that doesn't look too wild or messy? A: - The way to make a rain garden, or any garden, appear 'well kept' is to keep the edges tidy. Tall plants and grasses tend to "flop-over" so if you want a neat silhouette, you will want to stick with short species. To keep native plants from growing too large, remember not to water them! Q: - What happens to water-tolerant plants when we have a dry spell? - A: - Native plants can withstand a range of weather conditions. Native plants that do well in poorly drained soil will be fine during dry weather. . Q: - How large must a rain garden be to be worthwhile? , http://www.mninter.net/....stack/rain/index.htm 09/08/2001 Rain Gardens Page 6 of9 . A: - Any water that seeps into the ground instead of running into a storm sewer helps water quality. A rain garden of any size has a positive impact. Neighborhood raingardens can provide recreation opportunities, re- create wetlands and add aesthetic value to our urban communities. Neighborhood Projects: The overall landscape pattern of our cities includes easements and small public properties. These areas are ideal for gardens that improve the ecological functioning and the aesthetic value of our' communities. In the Twin Cities, our proximity to the Mississippi River and its network of tributary creeks and streams provides many opportunities for protecting this great waterway through restoration of former natural areas. . Across the country, urban communities are realizing the economic, social and environmental benefits of creating stormwater filtration projects and restoring native vegetation. Twin City based efforts include work in the neighborhoods surrounding St. Paul's Lower Phalen Creek and Minneapolis' Bassett Creek -- Mississippi River tributaries that have ~een degraded and partially buried as storm sewers. - Residents, businesses, employees and government agencies are working together to recreate natural areas and improve water quality in Lower Phalen Creek and Bassett Creek. Efforts, which are spearheaded by St. Paul's Friends of Swede Hollow and Minneapolis' Friends of Bassett Creek; include promoting rain gardens as well as: · Recreating wetlands and other natural areas. · Improving and enhancing existing parks and natural areas through removal of invasive trees, planting of native species and increasing public access. · Creating and extending public bicycle and pedestrian trails to provide new recreation opportunities and connections to the Mississippi River. . Rain gardens in action! , http://www.mninter.net/-stack/rain/index.htm 09/08/2001 Rain Gardens Page 7 of 9 . There are a number of sites where rain gardens are being installed to add beauty to our cities while capturing and filtering stormwater. Friends of Swede Hollow and the City of St. Paul are installing a rain garden demonstration site on Seventh Street near the Swede Hollow Cafe. The St. Paul Neighborhood Energy Consortium is building a rain garden at their new site on Selby and Dale. Through this project, an existing parking lot's impervious surfaces are being reduced by about 17 percent. To see a residential rain garden, take a look at the yard on 118 Virginia Street (one half block north of Summit Avenue, near Western in St. Paul). The rain garden is visible from the sidewalk. Native Plants for Rain Gardens . Below is a list of native plant and shrub options for wet soils in the center of rain gardens: Native Plants ,for Wet Soils --- Sunny Areas: . · Sweet Flag - - - .: - - - - (Acorns ~alamus) · Giant Hyssop* - - - - - - (Agastache foeniculum) · Canada Anemone - - - - (Anemone canadensis) · Marsh Milkweed* - - - .: (Asclepias incarnata) . New England Aster* - - (Aster novae-angliae) · Marsh Marigold - .: - - (Caltha palustis) . Tussock Sedge - - - - (Carex stricta) · Turtlehead* - -.: -.: - (Chelone glabra) · Joefye Weed* - - - - - (Eupatorium maculatum) · Boneset.: - .: - .: - .: - (Eupatorium perfoliatum) -. Queen Qf:the Prairie* .: (Eilipendula rubra}.: · Sneezeweed - - -.: - - (Helenium autumnale) · Blueflag Iris - - - - - - (Iris versicolor) · Soft Rush - - - - - - - (Juncus effusus) · Great Blue Lobelia.: - (Lobelia siphilitica) · Switchgrass*.:.: - .: - .: (fanicum yirgatum} · Prairie Phlox.: .: - .: - .: ~hlox :g.ilosa) .http://www.mninter.net/--stack/rain/index.htm 09/08/2001 Rain Gardens . · Mountain Mint - - - - - (Pycnanthemum virginianum) · River Bulrush - - - - - (Scirpus t1uviatilis) .. Softstem Bulrush - - - (Scirpus validus} .. Riddell's Goldenrod - - (Solidago riddellii) . Tall Meadow Rue* - - - (Thalictrum dasycarpum) · Culvers Root* - - - - - (Y'eronicastrum virginicum) . Golden Alexander - - - (Zizia aurea) Native Plants for Wet Soils --- Shady Areas: . Caterpiller Sedge - - - (Carex crinita} . Cardinal Flower*:: =:: - (Lobelia .Qardinalis) · Ostrich Fem* - - - - - (Matteuccia struthiopteris) · Virginia Bluebells - - - (Mertensia verginica) · ,Sensitive Fern = - - - - (Qnoclea ~ensibilis) *Likely to grow taller than three feet. . Shrubs --- Sunn.v or Shad.v Areas: · Black Chokeberry - - - (Aronia melanocarpa) . Red Osier Dogwood - - (Comus serecia} . Low Bush Honeysuckle - (Diervilla lonicera) · Annabelle Hydrangea - - (Hydrangea arborescense 'Annabelle') · Pussy Willow - - - - - (Salix caprea} · Blue Arctic Willow - - - (Salix purpurea 'Nanna') Shrubs --- Sunn.v Areas Only: . Meadow Sweet - - - - (Spiraea alba) · Steeplebush - - :: - - - (Spiraea tomentosa) · High Bush Cranberry - (Viburnum trilobum) - For vurchasina native plants and seeds: .,.; - ....; . · 'Prairie Restorations Inc: 888-389-4342 · Landscape Alternatives: 651-488-3142 · Prairie Moon Nursery (mail order only): 507-452-1362 , http://www.mninter.net/-stack/rain/index.htm Page 8 of9 09/08/2001 . Rain Gardens Page 9 of9 . For information on gardening with native plants, runoff pollution prevention and workshop opportunities, call the St Paul Neighborhood Energy Consortium: 651--644-7678 For information on native plant demonstration sites, classes, youth gardening projects or starting a community garden, call the Sustainable Resources Center Urban Lands Program: 612--872-3288 Read published newspaper article on a neighborhood rain gardens retrofitting project along a city street. Some Rain Garden Links: --- Environmental Protection Ae:encv (EP A) urban runoff and rain e:ardens. --- Runoff treatment and rain e:ardens at Jordan Cove. Connecticut-(EPA). --- Rain e:ardens at Port Towns. Marvland. - - --- Rain e:ardens at the Vircinia Deufu Lment of Forestrv - - -- - Native plant information was supplied by Fred Rozumalski, Barr Enaineerina.. - - Rain garden text written primarily by Amy Middleton and Sarah Clark. . Funding for this rain garden pamphlet was provided by the },tIcKnil!'ht Foundation. Minnesota De?artmem of Natural Resources and Minnesota Office of Environmental Assistancll. illustrations reprinted courtesy University of Minnesota Deoarrment of Landscaoe Architectu~, - - (Maintained by Dave Stack, Ed MCRoberts ;Content @ Friends of Bassett Creek: (Created by Gabe Ormsby); Update 01feb13) Please email usatstackt1!lmninter.netif you notice any links or phone contacts on this website that have died, . , http://www.mninter.net/....stack/rain/index.htm 09/08/2001 . . . bemostration Site, Driveway Dry Well D. Driveway Dry Well This drywell system serves the dual purpose of retaining and cleansing rainwater, giving it time to percolate into the ground rather than carrying motor oil and other pollutants into the storm drain system and out to our beaches and bays. Rainwater flowing down the driveway runs through a grate (see D) into a box containing sand and crushed rock that captures pollutants. Return to Demonstration Site . http://www.treepeople.org/trees/d.htm '. Page 1 Ofl Click here to view Actual Site (Size 80kb) 1>Ji~.... 00f """"""""-"i,l~!j_; .1- '~""P": . 09/08/2001 . . . HARDSHIP CRITERIA Hardship criteria # 1. The lot was developed before applicant purchased it and he upgraded the existing house, under permit. The "calculations" desired by staff are not relevant as per the engineer's letter dated December 6 and presented to the Commission prior to the December 10 meeting. No alternatives have been offered by the engineering department, although I spoke with Lani Leichty and requested what they were considering, There are practical difficulties with this lot which the current owner did not create. He has enhanced the property in line with the surrounding neighborhood and has the full support of his neighbors in his efforts. Hardship criteria # 1 is met. #2. The need for the rear patio was documented, at the request of the Planning Commission. The chronology, attached, reflects the misrepresentation made by the Planning staff on the ability to bring in the requested information. Not the first misrepresentation they have made as is indicated in my short list, developed during my involvement in this case. The setback variance granted from the lakeshore required Mr. Crouse to stabilize his backfill when the house was raised to meet current code. Hardship criteria #2 is met. #3, Reasonable use includes protecting the stability of structures and erosion control. Mr. Crouse's property would be devalued and possibly compromised should the patio be removed. While variance approval after the fact is not typical or encouraged, destruction can be construed as a taking. Hardship criteria #3 is met. #4, Staff, Mr. Crouse and his neighbors are in full agreement that this is not a problem. Hardship criteria #4 is met. #5. The impervious surface of the patio creates minimal drainage impact, according to Pat Lynch of the DNR. Removal of the stabilizing surface could create major erosion problems, not the infiltration area Staff envisions, More effective is an alternate drainage system for which Mr. Crouse's house is set up for now, Removal of the patio will impact property values and impair established property values. Hardship criteria #5 is met, removal of the patio will diminish property value and impact the neighborhood, creating hardship on the community. . . . #6. The intent of variances is to allow flexibility with Ordinances and to give municipalities the ability to improve while maintaining standards. No one can dispute that Mr. Crouse has improved his property. The entire neighborhood is behind his efforts. His lot is adjacent to an open outlot which creates a large pervious infiltration area and is one of the reasons his lot is small. The intent of the Ordinance and Comprehensive Plan is to create a standard and encourage improvement of real property in concert with surrounding properties. Mr. Crouse has brought his property in line with his neighborhood - the intent of the Plan! Hardship criteria #6 is met. #7. No other means have been identified by City Engineering to stabilize Mr. Crouse's patio area, He raised the house to meet Code requirements that had changed from when the house was originally built, creating the need for backfill. The close proximity to the lake (per granted variance) requires the backfill be stabilized. This is not convenience for the property owner, it is protection. Hardship criteria #7 is met. #8. The hardship results from: - Ordinance changes requiring a driveway be calculated as impervious surface (see attached November 22, 1996 letter documenting changej- - Code changes requiring a higher elevation for lower levels - Platting which created an undersized and irregular lot prior to impervious surface limitations Hardship criteria #8 is met. #9. Economic considerations alone are not sufficient to grant a variance. However, the expense to create another cap, which functions at/or about the same level as the current cap, can and should be considered when making a decision on Mr. Crouse's variance request. However, Mr. Crouse is willing to expend resources to use alternative methods to mitigate the runoff and monitor it. His house is ideally set up for this type of mitigation because all guttering and downspouting is in place. The 28% could be captured easily and managed through rainbarrels and other mechanisms. From a 46.4% unmanaged runoff, it would result in 18.4% residual. . 'i!.~~''''''''.i.i.I.ltIwiI.~'~';1l.U::;''I~i~_.~~i~.iiMl!ili~j'16IiJ.Il..,1.liiii;,'II~Ji~Jl.i~,~jiil~ljijoi.1i'~I~~ij~..,Ii~illiilWiilllll.iliiljllliiilll.iill_jl;wJlIil,II.I.I.IIiII,IIIWI.IliJ~,i1'ljlillill. NOVEMBER 22, 1996 Dear Builder/Surveyor: On November 18, 1996 the Prior Lake City Council 'adopted an ordinance modifying the definition of unpervious surface. The change adds gravel driveways to the definition of impervious surface. The effect of this on new construction will be irrelevant, as paved driveways are required on new construction. The effect on existing parcels could be significant in some cases. The new defmition is as follows: . liltfPERVlOUS SURFACE: The portion of the buildable parcel which has a covering which does not permit water to percolate into the natural soil Impervious surface shall include, but not be limited to, all driveways and parking areas, whether paved or not, sidewalks greater t!ran 3' in width, patios, tennis and basketball courts, swimming 'pools, covered decks and other structures. Decks open to, the sky and having open joints of at least one-fourtll inch (1/4") and sidewalks 3' in width or less shall be exemptedfrom the calculation of impervious surface. Tile impervious surface of a lot shall be documented by a certificate o/survey unless exemptedfrqm this requirement by the Zoning Administrator. In order to better administer the impervious surface requirements, the City has created a worksheet to be submitted with all building permit applications for property located, in the Shoreland District (SD). The impervious surface requirement only applies to property located in the Shoreland District. The Shoreland District includes all property located within 1,000 feet of a significant body of water such as Prior Lake, Spring Lake, Mystic Lake, iVIarkley Lake, etc. and the tributaries leading to them: If you are unsure of the zoning, please call us. . , Please feel free to call us if you have questions regarding the worksheet. Thank. you for your cooperation. . Sincerely, ('}; /w A.:' j r/lIGVV 1:;;;~ Planner IMPL TR.DOC/JK.T 16200 Eagle Creek Ave. S,E., Prior Lake, Minnesota 55372-1714 I Ph. (612) 447-4230 I Fa.x (612) 447-4245 .~N EQt:,~L oppoRTt::-:m' E.\lPLOYER . . . 2/23/01 6/25/01 7/23/01 9/10/01 9/14/01 9/24/01 9/25/01 10/5/01 10/8/01 ' CHRONOLOGY Crouse Variance Request Mr. Crouse files original variance application (57.5% impervious surface) Hearing held Hearing scheduled but applicant out of town, postponed Hearing with .Ll;,p.Lesentative appearing for Mr. Crouse (business trip) 45% discussed at June 25 meeting, 44% proposal presented, with alternative measures to bring infiltration below 30%, motion made for 40%, 36% passed with need for additional information emphasized. Letter of appeal of 36% variance flied with Don Rye Planning Commission meeting - Resolution modified from 36% to 38% without public hearing r_ 3~'%' _ ~O\ Telephone call from Steve Horsman - ready to pUblish1but nothing fmal until Resolution signed at October 8 Commission meeting. Based on Horsman's request, letter sent withdrawing appeal so that additional engineering information could be introduced to Commissioners and the City for this variance. Based on Horsman's representations - engineers report sent to all Commissioners and the City with request public hearing be reopened to introduce this information. Letter faxed from the City d''''~'J.:ng request to introduce additional information and requiring a new variance. Hearing held and Resolution signed for 38% variance. Examples: Teilborg's surprise at having to remove garage (Sept. 10 Planning Commission mtg) Norling's change to their variance without public hearing (post-approval) Crouse's denial to reopen hearing and subsequent change in variance (post-approval) ""C' . .".. '~~~':~ :~&~~~: "......... . "~': ~., tluJ!ilVIU,";u~J,R1{ & BATES ATTORNEYS AT LAW 16670 FRANKLIN TRAIL P.O. .BOX 67 PRIOR LAKE, MINNEsOTA 55372 JAMES D. BATES BRYCE D. l1u.l:U\fOELLER September 14;2001 Telephone (952) 447-2131. Fax (952) 447-5628 Mr. Donald R Rye Prior Lake Planning Director 16200 Eagle Creek Avenue Prior Lake MN 55372 Re: D. Mark Crouse - Application for Variance No. 01-017 Dear Mr. Rye: . This letter is a notice ofappea1 to the Prior Lake City Council from the September 10, 2001 action by the Planning Commission reducing Mr. Crouse's variance application for increased impervious surface from 57.5%..10 36%. Please send me copies of the Planning Commission's minutes and the staff report for the City Council meeting as they become available. VtfX. truly yours~ !r~; . 1/\ ,,&-1 3 I '-'1 ~L'':'\ I ,....l,.,rI...,A.I 1~">",,,-, "<::-J' Allison J. Gontarek Attorney at Law Au- cc: D. Mark CroUse . . . . ,~~Jt~\ HUEMOELLER & BATES ATTORNEYS AT LAW POST o.lfnCE BOX 67 PRIOR LAKE, MINNESOTA 55372 Telephone: 952.447.2131 Facsimile: 952.447.5628 E-mail: huemoellernatest.Q).aol.com ;~~t~!1 BRYCE D. HUEMOELLER JAMES D. BATES ALLISON J. GONTAREK OF COUNSEL: CHARLES C. HALBERG September 25~ 2001 Mr. Steve Horsman Prior Lake Planning Department 16200 Eagle Creek Avenue Prior Lake MN 55372 By Facsimile and U.S. Mail Re: D. Mark Crouse - Application for Variance No. 01-017 Dear Mr. Horsman: Please consider this letter as a request for your department to disregard my September 14 letter of appeal directed to Mr. Rye, Planning Director. We were under the impression that a final decision had been reached at the September 10 Planning Commis~ion meeting which required an appeaJ. within 5 days. I apologize for the ' misunderstanding and appreciate you contacting me before publishing the notice. Thanks! VerY truly yours, ~LLv~ " Allison J. Gontarek . . (~F~~ HUEMOELLER & BATES ATTORNEYS AT LAW POST O~jH,CE BOX 67 PRIOR LAKE, :MINNESOTA 55372 Telephone: 952.4472131 Facsimile: 952.447.5628 E-mail: huemoellerbatesuv.aol.com BRYCE D. HUEMOELLER JAMES D. BATES ALLISON J. GONTAREK OF COUNSEL: CHARLES C. HALBERG October 5, 2001 Mr. Steve Hv.L,)...wm Prior Lake Planning Department 16200 Eagle Creek Avenue Prior Lake 1\.1N 55372 Hand Delivered Re: D. Mark Crouse - Application for Variance No. 01-017 Dear Mr. HV.L,)U.Lan: Enclosed please find a report p.Lvpared by Professional Engineering Consultants regarding , the requirement for a cap between Mr. Crouse's house and the lakeshore. We respectfully request that the hearing on Mr. Crouse's variance request be reopened based on this new information, obtained at the request of the Planning Commission. This engineering analysis was obtained to satisfy the questions raised by the Planning Cv~sion at their September 10, 2001 meeting. It is in draft form because the engineering :firm was unable to produce a final, more polished copy. I will forward you a final copy as soon as it becomes available. I am forwarding the report to all the Planning Commissioners individually in hopes to expedite a drawn out process. Mr. GislaSon states the need for a cap was created by the legally permitted raising of the original structure to comply with C1.u....l;,ll' elevation requirements. We would apl'.LI;,,,,~ate the Planning Commission takIDg this additional information into consideration in Mr. Crouse's variance request vt3ur,rYOurs, M -J.- .rAJlNU~ ~t , Allison J. Gontarek . cc: D. Mark Crouse f*t~~ ~1\~~ AGENDA ITEM: SUBJECT: .- SITE: , PRESENTER: REVIEWED BY: PUBLIC HEARING: DATE: - INTRODUCTION: PLANNING REPORT 4A CONSIDER A RESOLUTION APPROVING A VARIANCE FOR AN IMPERVIOUS SURFACE. COVERAGE AREA OF 38%, FOR ,D. MARK CROUSE, Case File #01-017PC 15507 CALMUT AVENUE NE STEVEN HORSMAN, ZONING ADMINISTRATOR JANE KANSIER, PLANNING' COORDINATOR YES X NO OCTOBER 8" 2001 The Planning ,Department received a variance application from property owner - Mr. D. Mark Crouse for an impervious surface coverage area of 4,422 square -feet or 57.5% of the total lot-area on the property located at 15507 Calmut ' Avenue NE (Attachment 1 - Ce~ificate of Survey). . The Planning Commission conducted public hearings on this item on June 25, 2001, on July 23, 2001, and on September 10, 2001. After review of the applicant's request with respect to the variance hardship criteria, the Planning Commission directed staff to draft a resolution approving a variance to allow an ,impervious surface of 36 %. On September 24, 2001, the Planning Commission reconsidered their earlier action. The Commission determined a 36% impervious surface would not allow a driveway. The Commission therefore approved a 38% impervious surface and directed staff to prepare a resolution. 1-. A variance to permit an impervious surface coverage area of 38% of the lot area above the 904 foot elevation (OHWM), rather than the maximum allowable coverage of 30%. The following conditions must be adhered to as part of the Variance Resolution: . 1. The applicant shall submit to the City of Prior Lake a revised certificate of survey identifying the impervious surface to remain on the lot and the 16200 Eagle Creek Ave. S.E., Prior Lake, Minnesota 55372-1714 / Ph. (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER .. ~ . ,. ~.;;~~:%~ . ~~~~:~': October 8, 2001 Ms. Allison Gontarek Huemoeller & Bates 16670 Franklin Trail Prior Lake, MN 55372 Dear Ms. Gontarek: . The City of Prior Lake received a letter from you dated October 5, 2001, requesting that the public hearing be reopened for Variance File 01-017PC. You included additional information from a Professional Engineering Consultant regarding the need for a cap (patio) between the home and lakeshore retaining wall on the' property at 15507 Calmut Avenue. As you are aware the Planning Commission made a final decision on this matter, and allowed the applicant to maintain' a 38% impervious surface area on the subject , property, at the scheduled hearing on September 24, 2001. This provides for a driveway to the 3-stall garage, but requires the additional impervious surface area to be removed, including the patio area in question. The public hearing for this request has been closed and any additional variance requests and supporting documentation shall be processed in th~ form of a new variance application. If you should have any questions regarding this matter, call my direct phone numb~r at 447-9854 between 8:00 a~m. and 4:30 p.m., Monday through Friday, and I will assist you. Sincerely, ' ~~ ~ .,~. ~ ~-i,'iA.' , ~~ st;;;en Horsman Zoning Administratorllnspector Enclosed: Variance Application . 16200 ~eek Ave. S.E., Prior Lake, Minnesota 55372-1714 / Ph. (952) 447-4230 / Fax (952) 447-4245 AN EQUAL OPPORTUNITY EMPLOYER . . . JAN.22'2002 15:25 651 770 2552 EMMONS & OLIVER RESOURCES #1704 P.002l010 \ '? 1.,- ~ Making A Difference Through Integrated Resource Management EOR, INC. · 3825 Lake Elmo Avenue North · Lake Elmo, MN · 55042 · Tel: (651) 770-8448 · Fax: (651) 770-2552 January 22, 2002 E[R EMMONS & OLIVIER RESOU RCES """"=... ~~-= ~ ~ p.- ---.. ~ -.- ....---- Ms. Allison Gontarek, Esq. HuemoelJer & Bates 16670 franklin Trail Prior Lal<e, MN 55372 Re: Crouse Impervious Mitigation Rain Barrel & Rain Garden Project Dear Ms. Gontarek: This submittal is a follow up to OUT recent telephone conversation. Enclosed you will find general information related to cont.roJUng storm water runoff vol,umes, Also we have quickly reviewed the small-scale survey of the Crouse propeny and have included some brief recommendations. General Infonnation The rust item you will find is a 4-page draft fact sheet EOR has generated for a watershed district client. This fact sheet provides specific design crit.eri,a used for CO.."L olcting infiltration trenches, infiJJ:ration tubes and rain gardens. The second item encJosed is a general information sheet on infiltration. The third item is some general infuuuation on rain barreJs and cisterns photocopied from a m.anual calJed "Low-Impact Development Design strategies" prepared by Pri.nce George's County, Maryland. Recommendations , With the specific intent to mitigate the amount of stonn, water runoff generated by the ilUj,J...rvious surfaces on the property we have developed the foJJowing conceptual ideas: 1. Rain barrels should be installed at roof downspouts. TIle rain barrels should be sized to collect and store at least the volume of water generated by any additional proposed impervious area for a two-year storm (2.5" in 24 hrs). For each 100 sq- ft of impervious swfaces~ 156 gallons of storage is required to retain a 2..year event. Typical rain barrels have a capacity of 42 gallons. La.6"'~ storage units are typically called cisterns and range from hundreds to thousands of gallons. Stored water can be retained for Jong periods of time and used for Jand.~apjn,g watering, car washing or with J:'.LVl.lcr treatment, cbinWng. 2. Small-scale infiltration trenches and tubes may be lncoij?orated in the landscaping plan without taking up a lot of space. Storm, water runoff should be directed to the desigt1ed struccures allowing runoff to. be infiltrated. Location of designed infilttation structures must be considered carefully. Many factors such assojJ type, proximity to structures and storage volume need. to be considered. In many JAN.22'2002 15:25 651 770 2552 . . . EMMONS & OLIVER RESOURCES #1704 P.003/010 ca..~s infiltration. trenches blend in to site Jandscapin.g and in some cases can be constructed under im.pervious surfaces such as parking lots and driveways. This site will have to be further analyzed to determ.ine the appropriateness of these types of infiltration practices. 3. Rain gardens should be incorporated into the landscaping plan. Rain gardens are planted with native flowers, grasses and shrubs that can tolerate periods of saturation and drought. Stann water routed to rain gardens is stored. infiltrated and utilized by tbe plants. 4. Native landscapIng should be incorporated into the landscaping design. Turf grasses on the property should be minimized as much as possible. Manicured turf grasses generate nearly as much' stonn water runoff as im.pervious surfaces. Considerations should be given to replace conventional turf grass with native grasses and flowers. Including areas of native plantings in a site landscaping plan can considerably reduce the amount of storm water generated during a rain event and requires a lot Jess m.aintenance that traditional twf. Also, being that the site is on Prior Lake, native Jand..~apjn.g alon.g the shoreline could provide pretreatment of storm water before it enters the lake, Next Steps We appreciate your interest in protecting our water resources through the use of in.novat.ive storm, water management practices. Please let us know if you would like additional information on these types of stonn water management pracUces or if you require additional assistance in the fuiirre. Sincerely, ~wt Camilla Correll Water Resource Engineer ason R. Naber Natural Resource Specialist JAN.22'2002 15:26 651 770 2552 EMMONS DRAFT . Infi tration Trench, TUJe & Rain Ga "den INTRODUCTION TO PRACTICE An infiltration trench is an eJCcavated depression that is backfilled with washed gravel providing underground storage for runoff allowing it to infiltrate into the underlying soil. Infiltration tubes are a variation of the tretlch design. Rclin gardens cara be designed to include subsurface improvements like those of 0 trench, . Due to their small size, infiltration trenches, tubes C1nd rain gardens are appropriate for confined areas such as parking lot islands, rOCldside swales or residential sites. Infiltration trenches and tlJbes can also be used as er1hancemer1ts in r~;onol Infiftration practices by allowing storrnwater to by- pass impermeable layers, such as cloy lenses, thereby increasing the overall infiltration capa.city of t"e facility. SITE SUITABILITY . Infiltration trenches and tfJbesshould only be used in areCIS where 1'he following physical site characteristics are suitable: soil type and depth to the seasonally high water table, depth to bedrock or on impeding layer, contributing drainage aree and topography. The following steps should be taken '1'1 the evaluation of $ite suitability: · Perform one to three soil borings In the rocation of the infiltration pradlce(s) to confirm naturally occurrin9 permeable soils, depth to the seasonally high water table, bedrock or an impeding layer. A minimum 3- foot distance should be providecl below the bottom of the practice and the water table or bedrock (Protecting Water Quality in Urban Areas: A Manual, Minnesota Pollution Control Agetlcy, Moreh 1, 2000), 8301 Valley Creek Road WOodbury, MN 55125 (651) 714.3729 " Determine how suitable the topography is for an Infiltration trench. These practices should not be cons1'ruc:ted on sites with a slope greeter t"an 20 percent. · According to the Uterature, the contributing drainage area to an infiltration trench or tube typically should not exceed five aeres. " Evaluate the impact of constructing elM infiltration practice on existing hydrologic features (e.g. wetlands) and fry to maintain pre-existing conditions (e.g. do not breclc:h a perched water table which ;5 supporting a wetland). Ff9ure 1, ExcovotlQn of cr.n Infiltration trench with a backhoe. Note; Based (In past experience with current regulations, infiltration tubes may be classified as Class V Injection Wells, and must be reqlstered with the MPCAJs long as hazardous substances are not anticipated in the runoff and the tube ;s not within three feet of the water table. the registration process is fairly simple. JAN.22'2002 15:26 651 770 2552 ~..... . EMMONS & OLIVER RESOURCES #1704 p.005/010 ._~:.".:'~.,:",;:Il'~ .:.:..:.~.::....,:.,. ::,' :......~..,::::;;:;~..!::.. ::;' .:. H .1: ,. '... . Figure 2. Post construction photo of infiltration trencn with observation well. RECOMMENDA TIONS FROM LOCAL CONTRACTORS, DEVELOPERS AND CITY STAFF "Would like to see more ;I1filtrot;on practices being used upstrecun in the system (e.g. creating islands or greer'l spaces adjacent to parking areas) rather than diverting 01/ of the rrmott to 0 regional facility." . "Details should reflect the soil condii'lons found on si1e," "Engineer approved alternate" is an important thing to include In the details because the supplier might know of another source or alternative i'he contrador could use. "Recommend placing the filter fabric a foot be/ow the surface to avoid future disturbance to the fabric." ' "Dry wells require pretreatmer"lt otherwise they ~ilt up and theanly way to clean them Is to dig them up and replace them." "The observation well Is 0 good Ideo because you can see if the Infiltration practice is working and you can install it InexperJsively," SITE SELECTION . Permeable Sails - Na1'urally occurring permeable soils should be confirmed by performing soil borin9s In the location of the infiltration practice(s). Sources of i"formotloni"c1ude: the Soil Survey of Washington arid Ramsey CountIes (1977), the Geologic Atlas (1990) and the South . . WClshi"9to-" W12ter~hd Oi~,.id I"filtrotiol1 Management Map. Depth to Seasonally High Water Table and I Bedroek - Verify that Q ~lJff'c1ent depth from the bottom of the Infiltration trench, tube or rain garden to the seasonally high water table is maintained. According ta the Minnesota Pollution Centrol Agency Protecting Water Quality in Urbon Areos: A Monuol 0 minimum three-foot distance should be provided from the bottom of the infiltration practice to the seasonally high water table bedrock ar an itnpeding layer. DESIGN CONSIDERATIONS · Proximity to Wells and Foundations - Maintain a l00-foot distance from drinking water wells and situate at least 10 feet down-gradient and lOO-feet up gradient from building foundations. II Topo~ "r hy Clnd Slope ~ Inflltrotio" trerJches should not be constructed on sites with CI slop,e greater than 20 percent. · Contributing Drainage Area. the contributing drainage area. to an infiltration trench or a tube typically should not exceed five a.cres. · Maintain Pre-Development Hydrology Infiltration trer"lches, tubes and rain gardens can pe designed to provide the vohJtne control required to offset the Introduction of imperviousness on (I site thus malntealnin9 pre- development conditions. · Pretreatment of Runoff - Provide for the pretrea.tmer1t of stormwa.ter to prevent the infiltration trench, tube or rain garden from clogging prematlJrety. Vegetated buffers along the trench perimeter, pretreatment cells or smeal! depressions to allow for the settlin9 of sediment upstream of the infiltra.tion practices are common pretreatment techniques. · Maximum Draining Time Inflli'rdion trenches should be de.slg"ed to drain withi" 72 hours after the design event to maintain aerobic conditions in the underlying soils, otherwise biological clogging can become a problem. · Aggregate Ma1erial - Use 1-3 inch clean wo.sned stone aggregate that is oper'l-graded JAN.22'2002 15:26 651 770 2552 UnA,., and of a narrow size ronse so 1'hlJt the vcldltl betweetl aggregates are not filled by smaller particles thus contributin9' to lower efficiencies or dogging of the prClctice. EMMONS & OLIVER RESOURCES #1704 l?006/010 . · Filter' FClbric - Filter fobric, when nec2SSClry, should be permeable Clnd should have a trot1Smissivity of "0 less than 100 gallons per minute. · Observation Well - An observation wen (see detail) should be installed in each inflltratfon trench to monitor and evaluate the performance of the practice (e.g. 4" PVC pipe wit" t" slots, Q screw on PVC cap and aluminum foo1' plate). · MClintenance Access - Provide access for future mointenance of the infiltration trench, tube or rain garden. . CONSTRUCTION METHODS · 6rCldin9 Equipment - Infiltration trenches, tubes and rain gardens should be excavated using light earth moving equipment to prevent the compaction of underlying sol/s (e.g. wide- tracked dozer, bClckhoeor other low- compaction equipment), Construc1'ion traffic should be routed away fram these areas. Before site grading begins, place orange construction safety fence around the infiltration area to eliminate compactiol"l of the soils similar to septic drain fields. " Timing of Construction - The infiltration trench. tube or rain gardel1 should not be ccmstructed until the contributing drainage oreo has been constructed and fully stabilized. This may requIre re.mobilizatlon of equipment. · Erosion Control - During construction of the infiltration trench, tube or rain garden. rigorous sediment and erosion controls (e.g. diversion berms) should be used to keep sedimel"lt and runoff completely away from the infiltrl1tion area. · Other Utilities - Avoid placing other utilities, sucn as sewer and water, within or under the infiltration practice. This avoids compactions and the potential for cross contamina.tion. . TIPS FOR CONSTRUCTION PLANS AND SPECIFICA TIONS For clarity. provide detailed in'formation regarding t"e design end construction of infiltration 1'renches, tubes and rain gardens on both the construction plans and specifications. This is importcrnt in the event t"a1' the plart set or project gets split up and the contractor ends up constructing t"e project with the pIons only. The following type of language may be included in both the plans and specificatians: I, "Prior to grading, place orange construction safety fence along the perimeter of the infiltration area to prevent compaction of the solis." 2. "If preliminary grading of the il"lfiltration area is absolutely necessary, grade the infiltration practice to within 3 to 6 feet of final grade to prevent compaction or clogging of the underlying soils." 3. "DO NOT excavate infiltration areas for borrow material." 4, "Remove excavated soils and materials from infiltration area(s) to prevent erosion bock into the infiltration practIce and soil clogging." 5, "Protection of soils in Infiltration oreos refers to no compaction and preventing siltation." 6. "Seeding/restoration/planting of infiltration areas to be completed within 24 to 48 hours of final gradIng." MAINTENANCE NEEDS The maintenance of infiltration practices is an important foetor in ensuring the long-term perforlT\(lnce of an infiltration prac1'ice. Short-term maintenance requirements include vegetatIon management, debris removal, and sediment removal. Long-term maintenance requirements can indude remover I and replClcement of overlying filter (see Figure 2) or rehabilitation of the entire proctlce if it is clogged wit" sediment. The need to perform IClng~term maintenance may be indIcated by conducting routine inspection using 1'ne observation well. JAN.22.2002 15:27 651 770 2552 UnA,.., One of the main concerns with the maintenance of infiltration practices is determining t"e responsible . party or individual. Infiltration practices usually require a legally binding operation and maintenance agreement wnich would be included in the property deed. EMMONS & OLIVER RESOURCES #1704 p.007/010 TYPICAL COSTS OF CONSTRUCTION The following construction costs for infiltration trenches and tubes are based upon practices that have been construded in the South Washin9ton Watershed District (1998-1999). These costs include the following: mobilization, excavation, hauling excess material off-site, construction, observation well. and post-construction grading. Table 1. Construction Costs for Trenches & Tubes. Infiltration Approximate Construction Practice Dimensions Cost Tube 2' diameter tube Avg. Depth 12' Trench 9' W x 36' L (Re.gional Setting) Avg. Depth 13' Trench 8' W x 15' L. x . (I...ocal Setting) 10' D EXAMPLE DETAILS $4,100 $8.700 $4,900 The following details were used in the construction of the infiltration trenches and tubes located in the SWWO. SIte analysis is required for the design of specific infiltration practices. Figure 3. Inftltration Tube Oesign Detail 'CIII. """ lUlIfr. III ltf I'l\Ioi" 1/ ~t.-u'l .:w"'^"...lIr;',D....I....~NII. ..,..III#Im..'tl'....J:('''...lf. 'r.t"".lGhf) ~ "~"",,,.,....JtllllW" tori "wlwl' -'fAa.-lll . ( I, J\ ."1' , .,. f1I ""oIr 1...)11' ) ., .olD"" --,,, r~:r~1 I f.~;~~':~ I", '~~r1 ~,"~: JL..,~~, : ~~ " " : "'-......,'.,., I fl. 'f'",,,.,;:;,.:; " /' ". ~.,,'. \,1.. '" '," ,I, r." / " .....t..'..~i..{ ;.........1'. ~(... 1~""IUU _.-\.:~,1!:ji;i.;..i.'.!~,Si:~:~~ ,)",.1 '." 'l ' ""''''0''..............' ,"";j;>,}:.7:.' ; I "I'''.'''~;~ ,0' .... Figure 4. Infiltration Trench Design Detoil ""-'n \IdlIB 1lII1ft'.~~ .--...---..-....- '.-' . , \ I N~, .." . , ;t~..... ~.l.t.. '141'- roo, rJ~ I f."n1 / .'I"'JUII,~r. ..-1"",., ,-_.........4.-",''l:oo,. ~',' ..L......./._,_..../....._ ,. ,"':,. ;..;.:' .;~-.:'" ...~r-71 ..... ," ..... "'l..'; ;";.~J: 'f\;'~~ ,"',." ""I,,;,,..",' , '/I~t~-.., ~- ~"~~" "5~:~::~:{L:(,>:""~':".\:L::~.;S::~:,.~.' ~-. \ I .,,'.:[....:':1, _~_.) I \ 1l\lW,1lIIo', Ilnlpl I . , )IoC'OtJ... .f';l"AW:"C "'K-""O \. .. I. at1Q2 P1ICW(,IIl.-n:l \...... (UP,,' O'll 'WO\O'ou.G 1\C11:a1 4..... wt) N,..tMad ..... ;:-':~'ll.D'... ..... O'~~"llOt"'l~ ( "" ( ........- \ (~~1i1:a _- ". ' "r .;~:":":: "'i':f~"" II ,.......~" ~r;- :"'.. 1!~n:.; r"';...' ).... , ,,~.'.. ..," .. ..' 'I'" I ''',:., ...t:~;:.. .,-.... . ',. . .......J ..t ( /. ,,' . . . "'I,'~' . .....- ;,:~:L:j ~:;~:\<:~ '-")' .~:' .;. .:. ',.~ ,.,'- , " '.~, ,\.:'_. .........'....VIiJ'.tl..,; '0, .....~., . I ..... -"",n:lI.,,,,,~.tO""'l!rJI"l l.. _dll'lll'~"*,,, ltA'''1IW ADDJ. I J.ONAL RESOURCES The following materials provide additioncL! information regarding the design and construction of infiltration trenches, dry wells or rain gardens. 1. Controlling Urban Runoff: A Practical Manual for Planning and Designing UrbclrJ BMP's. T.R. Schueler. Metropolitan Wasl-lington Council of Governments, Deportment of Environmental Programs. Washington, DC. 1987. 2. Low Impact Developmenf Design Strategies: An Integrated Design Approach. Prince George's COlJl'lty, Maryland Department of I:nvlronmental Resources. J'onuary 2000, 3. Rain Garden Reference to be added. CONTACT INFORMA nON Camilla Correll Emmons & Olivier Resources, Inc. 3825 Lake Elmo Avenue North Lake Elmo, MN 55042 (651) 770.8448 ccorre/l@eorine.com JAN.22'2002 15:27 651 770 2552 EMMONS & OLIVER RESOURCES #1704 F.OOS/OID Mabing A Difference Through Integrated Resource Management EMMONS & OLIVIER RESOURCES __ 'I ~ ..... -~ ~- ~~ "... .~._~7"'~- - --- . ~o:---.~ EOR Is on~ of the leading firms In Minnesota specializIng In Water Resources Engineering, Natural Resource - Management, Hydrogeologic ServIces and Wcrtenhed Planning and Management INFILTRATION: AN ALTERNATIVE SrORMWATER MANAGEMENT TECHNIQUE th. ate ef l.fII...... I. ...,........., ..--.m.... ..P........ .. He''''''''. ....... practlco It.... .............. tho ......... ba'....o 'n d........... ............. Infllbatl.. ...... ..... .. ........ .. . '....... .. local teal. lip .n............. tho ........... ............. . .......n. N....,.......uar...... ...In. · l.fIIlnd'on '..nch"''''' w.n. · ............ 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IRIIdI mlllfnll., ".., ,".. ".,.., ",., ". III'.",.""'" III .1HtII1tIII1.II ,. ......,.,.,........ .........lnfUIraU.. and............., ............... c.....ct. Cecfd. Ollvlo., P.L I......... II Ollvl., .......... ~...I ..OulU@..rlnc.co... lIDS .... .1.... Av.... N.rth .:.....D. C.n.n tall. ....., MN 11042. IInd. cto..o'l@eerlnc.com T........... ..'177...... JAN.22'2002 15:27 651 770 2552 EMMONS & OLIVER RESOURCES #1704 P.009/010 _..)Mlr/m.....l:la,.JlJJ~mD1~,.I....).IL", ;';'1 L' L1rJ/DJ.'..U1....~I.~'tr"nJiJlfO . Design Storm Table 4-7. Grassed Swa/e Design Considerations Channel Capacity Soils Channel Shape Bottom Width Side Slopes Channel Lon9iT.udlnl.ll Slope Flow Depth Manning's n value Flow Velocity lenqth of channel Water QUilIllty . Maintenance Determined by state or local agency. Refer to gu;danl:e provided by the Prince George's County LID Design Manual and the Maryland Stormwater Design Manual (MDE, 1998). i.f.lcal condition may necessitate adjustment of the ret:ommendations in the l'Juidanc:e documents. Sware must be sized to conv~ the peak disI:harge of the deslr.Jn storm The permeability (Infiltration rate) of thP. soils will determine whether a dry or wet swale can be used. It is rF.!(ommended that solis used for dry swales have infiltration rates of 0.27- 0.50 inches per hOtJr. Trapezoidal or parabolic shaDe recommended Z foot minimum, 6 foot maximum 3: 1 or flatter 1.0 % minimum, 6.0 % maximum 4,0 inches for water oualitv treatment 0.15 for water quality treatment (depth 00:: 4" ) 0.15 - 0, for deJ)ths between 4" and 12" 0,03 minimum for depth 12" 1.0 fps for w;;lter quality treatment. 5.0 fps for 2 year storm fDS for 10 Year storm Lenoth ne<:essarv for 10 minute residence time The pollutant removal effectiveness of gra,sed swales i5 summarized in Table 4-3 Routine Jandsaoe maintenance reouired. Rain Barre's Rain barrels are low-cost, effective, an.d easjJy main,tainable J:'E:cention devices applicable to both residential and commer.cial! industrial UD sites. Rai.n barrels operate bV rer:aining a predetermined volume of rooftop runoff (i.e., chey ptovi,de permanent ~tOrage for a. design volume) j an overflow pipe provi,des som.e detention beyond the r:ecention capacity of the rain barrel. Figure 4..9 3n,d Fi.gure 4..10 show Figure 4-9. Typical rain /j,~ , .J ~= 4C :"'!.ASTIC RIdN 1llllll'lF.L5 E lIPO\IT 2s'evILDIHQ P /lC 1MI': (lIT ~~ . l: Or>!; I ~ ,., . NOTE' " RAIN IWlR(I. TO ec I<F.PT AT H/lLF-FlLI.F.l) DlJRING WlHTRA MONTHS to ~ SARFlaL !"RO'" BREAlaNC " WATER IS F'FIoZF'..N . 4-78 v Low-Impact Development Integrated Management Practices #1704 P.010/010 D...)~l."" Con.'iideratitm.s. Rainwater from any type of roofing ma,cerial cao, be directed r.o rain barrels. To be aesr.heti,caUy acceptable, rain barrels can be jn,c.....,1",~rar:ed In.to the lot's land~ scaptng plan or patio or decking design. Rain. bw:reIs pJa,ced at each comer of the front 5i.de of the house should be lan.dscaped lor visual scteeojng. Gutters and downspollOi are used r:o convey water from rooftops r:o rain baneJs. FUttation, screens should be used on gur.r.ers to prevent dogging of debris. Rain barrels should also be equipped wirh, a drain, spigot rl'l::.l,f; has garden. hose threading, suitable {oJ;' connection to a drip inlga,rion system. An overflow outlet muST: be provided 1;0 bypass runoff from. large ;)I.oVUU events. Rain bands must be designed with removable, chjJd..resistm,( covers and mosquito sereernng on vnU:e1: en.r.ry holes. TIle size of the rain bane!. is, a fun.cl:if.>n of the rooftop surface area. r.har drains to the barre~ as well as r;b,e inches of rai.nf.:.lll to be stored. For example, one 42~gallon L..,.".J provides 0.5 inch of runoff storage for a rooftop aJ:ea of approximatelv 133 square feet. ' Cisterns S~...",w...ter runoff. cisterns aJ:e roof water mana.gemenc devices tha,t provi.de recention sr.orage volum.e in lJIld....6',vvnd stor:age t!3J;11cs. CoAot st..orage wir;b,later: reuse of BWLLLLwater also provides an "'l:'I:''''LL..m1r:y for. wacer CQI1..<;ervation and the 1;"w.J.bi.l.ity of r.edud1"lg war.er utility costs. Design Consuleratitm8. Cisterns are applicable 1;0 resi.dentl.a~ cor:nmercf.a1, and induslJ':ial"UD sites. Due 00 the size of rooftops and the amount of impervf,ousness of the drainage area, increased r.unoff' volume and peak discharge rates for c:ornm,ercial or in,dJJstrial sites Olay require larger~ap<l,ci,ty cister:ns. Individual cistem.s can be I,oeated beneath each downspout, or storage volume can be provided in one large, comm,on ciJstem.. Premanufa,ctllred resi.d,ential use cisr.erns come in $;zes ranging hom roo t.o 1.,400 gallons (Figure 4.11). Cistenu should be J,oca.ced. f()! ea.sy maintenance or replacem,enc. . iJ typical rain. ba.rrel. Ra,in ba,rrels also can be used to store runoff for la~r reuse in Ia-wnand garden wa terlng . . Fi.gu.re 4-10. Ro.in barrel application 1.0 LID Figure 4-11. Ci.stem.. 11TV1ge cou.rtlzsy of Pow PlastU:8, Ltd.., Devon., Engla.nd " '" ;:; .,' ~ ( , , , " , ,'." I f'l Low-Impact. Development Integrated Management Practices , 4-19 ' , Item. New Mail folder Page 10f2 . I Prey message I Next message / Mail List I Reply I Reply-Alii FOlWard /3 of 91 Subject: Barr Engineering Q&E cc: "Fred Rozumalski" <frozumalski@barr.com> Date: Tue, 22 Jan 2002 14:37:11 -0600 Status: Normal ~_~ik'4~".~~ From: "Karen Kaul" <kkaul@barr.com> ~'~_~i~f~ . Return-Path: <kkaul@barr.com> Received: from menin.isd.net (IDENT:root@menin.isd.net [208.153.200.22] (may be forged) ) by testi.isd.net (8.9.3/8.9.3) with ESMTP id OAA18855 for <aaontare@testi.isd.net>: Tue, 22 Jan 2002 14:38:28 -0600 Received: from gate.barr.com (gate.barr.com [209.98.63.2]) by menin.isd.net (8.9.3/8.9.3) with ESMTP id OAA02221 for <allison@isd.net>L Tue, 22 Jan 2002 14:38:02 -0600 Received: from prometheus.barr.com (prometheus.barr.com [172.25.33.25]) by gate.barr.com (8.10.2/8.10.2) with SMTP id gOMKbVp8~222 for <allison@isd.net>: Tue, 22 Jan 2002 14:37:46 -0600 (CST) Received: from Barr#032#Domain#032#1-Message Server by prometheus.barr.com with Novell_GroupWise; Tue, 22 Jan 2002 14:37:19 -0600 Message-Id: <sc4d791f.020@nrometheus.barr.com> X-Mailer: Novell GroupWise 5.5.4 Date: Tue, 22 Jan 2002 14:37:11 -0600 From: "Karen Kaul" <kkaul@barr.com> To: <allison@isd.net> Cc: "Fred Rozumalski" <frozumalski@barr.com> Subject: Barr Engineering Q&E Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=_BBE6C76F.B7D6BC44" X-DPOP: DPOP Version 2.5g X-UIDL: 1011737059.001 Status: RO Fred Rozumalski asked me to send you the attached Q&E. I have provided it in a PDF 'format. Please let me know if you have any problems with the file. Karen Kaul Senior C......"..u.nications Specialist Barr Engineering Company kkaul@barr.com 952-832-2931 ae.odf Prey message / Next message / Mail List I Reply I Reply-Alii FOlWard 13 of 9 . ~ View headers, 0 Variable width font, 0 Inline Images, 0 View as HTML 0 Execute HTML , .../ dmailweb.cgi?cmd=item&utoken=agontare@pop.isd.net-38.323344507527250101/ 22/ 2002 . Clients Northland College Upper Swede Hollow Neighborhood Association Services Hydrologic analysis Site design and engineering Planting plans Community education programs Implementation supervision . Deep-rooted plants facilitate infiltration. . BARR Rainwater Gardens A leader in ecologically sound stormwater management techniques, Barr has developed a unique expertise in rainwater gardens and other stormwater treatment practices. In designs like those pictured here, stormwater becomes a resource to be enjoyed rather than a nuisance to dispose of. Constructed rainwater gardens are strategically placed to catch runoff from roads, parking lots, driveways, and roofs. Deep rooted plants are used to facilitate infiltration, absorb materials, and create bird and butterfly First year after planting habitat. Rainwater gardens can be used on small sites or as the main technique in a larger system, allowing a neighborhood, say, to forego expensive curb and gutter. The gardens are excellent for use in highly visible areas, where A neat edge and pedestrian access they not only manage runoff effectively, but add visual amenity. With a team of expert hydrologists, engineers, and landscape ecologists, Barr is ideally suited to design rainwater gardens that are both functional and beautiful. This rainwater garden serves as a neighborhood amenity. .!lillA....lJlIJ~~,..f..lI~~u,',_ . Client City of Marshall, Minnesota Funder The Legislative Commission on Minnesota Resources Services Site analysis Guided public focus groups Master planning . .~~q..- Each lot is a sanctuary for birds and butterflies and allows for stormwater cleaning and infiltration, . BARR Ecological Neighborhood The city of Marshall has struggled with repeated flooding from the Redwood River. Funded by a research grant from the Legislative Commission on Minnesota Resources, Fred RozumaIski, with Professor Joan Nassauer of the University Rainwater garden of Minnesota Department of Landscape Architecture, designed a residential neighborhood that would help ameliorate downstream flooding. Their approach was to take cues from the regional landscape-oncedotted with prairie pothole wetlands. In lieu of underground storm sewers, Rozumalski and Nassauer designed an above-ground drainage system and stormwater wetlands, to be built wherever possible on wetland soils. The design not only manages stormwater, but recreates lost wildlife habitat and provides residents with beautiful natural amenities. i' I i ~ 1 l,.- WI :: I ----;., I ~""lIOdlll:i!ltllUblor~"""QfMtlfl.,;...,,-..,.....,~~~. WII!iJ.,"!:I.iIAlUollIIW~_*loIwlIjli!.liillii: . . . "Lakescaping for Wildlife and Water Quality" encourages property owners to plant a natural buffer zone between the lake and the lawn to reduce lake shore erosion and increase wildlife habitat. stage 1 'Lakescaping Book Fred Rozumalski, of Barr Engineering, recently co-authored a book titled ''Lakescaping for Wildlife and Water Quality," which promotes establishing native vegetation along lakeshores and reducing lawn size in order to protect water quality and create wildlife habitat, This DNR- sponsored book details the problems often faced by lake-property owners and offers an explanation of the lake ecosystem; how to solve lakeshore problems by creating a buffer zone; and detailed instructions on designing and planting lakeshore landscapes, Using his expertise in horticulture, landscape architecture, and ecology, Fred wrote the chapters on design, installation, maintenance, and exotic species control, and compiled the extensive plant lists, Native plants, such as this f1reweed, are identified in the book as substitutes for invasive, non-native plants. This, attractive and informative book can be purchased at Minnesota's Bookstore, 117 University Avenue, St. Paul, MN, or ordered by calling 1-800-657-3757 or 651-297-3000. stage 2 stage 3 Typlcallakeshore sites transformed by lakescaplng. This 3-stage design shows how a typicallakeshore property can be transformed from an open lawn to a site with an abundance of native vegetation that provides habitat in the form of a buffer zone between the lake and the lawn. The book offers several design options for a variety of lakeshore settings, BARR 1iIIJiII..I~'~.'~Il""""t'~. . . . Bibliographies Barr Engineering Company. 2001. Minnesota Urban Small Sites BMP Manual; Stormwater best management practices for cold climates. MeL.upolitan Council Environmental Services. Available from the Metropolitan Council at 651-602-1000 or www.metrocouncil.org. Claytor, Richard A. and Thomas R. Schueler. 1996. Design of Stormwater Filtering Systems. Chesapeake Research Consortium. Available from The Center for Watershed Protection at 410-461-8323 or www.cWt>.org. Henderson, Carrol. 1999. Lakescaping for Wildlife and Water Quality. Minnesota Department of Natural Resources. Available from the St. Paul Minnesota's Bookstore. Minnesota Pollution Control Agency. 2000. Protecting Water Quality in Urban Areas; Best management practices for dealing with storm water runoff from urban, suburban and developing areas in Minnesota. Minnesota Pollution Control Agency. Available from the MPCA, contact Mary Osborn at 651-296-7523 or www.1;>ca.state.mn.us/water/oubs/sw-bmomanual.odf Allison, The bibliography above is a few references that I had put together for another project. All of them have great information on how to develop and use alternative methods to improve stormwater quality and decrease the quantity and flow rate. I hope that a list of ref".LCiuces will help you. Below is a diagram that I use in describing what actually happens with development and urbanization. We promote the use of these alternatives to mimic natural conditions and ecological development as much as possible. So, the use of rain barrels to trap water and rainwater gardens to infiltrate water and to evapo-transpire back to the atmosphere are ways to remediate for the excess stormwater. The final thought on an argument is that new construction always creates more nmoffproblems then can be mitigated for. I hope this helps. If you need to call me, I will be here for another halfhour or so (4:45 pm). Otherwise my home phone number is 952-854-2990 and will be home by 5:45 pm. Rusty Schmidt Landscape Ecologist URS / BRN, Inc 700 Third Street South Minneapolis, MN 55415 612-373-6828 FAX: 612-370-1378 rusty_schmidt@urscorp.com