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Home My WebLink About2013-04-17 PACKET 04.P.REQUEST OF CITY COUNCIL ACTION COUNCIL AGENDA MEETING ITEM # DATE 4/17/13 . PREPARED BY Community Development Jennifer Levitt ORIGINATING DEPARTMENT STAFF AUTHOR ************************************************ COUNCIL ACTION REQUEST Consider approving the South Washington Watershed District CCIP Grant agreements for the Cottage Grove Public Works Facility and Cottage Grove Middle School in the total amount of $68,130. STAFF RECOMMENDATION: Approve the SWWD CCIP CCIP agreements for the Cottage Grove Public Works Facility and Cottage Grove Middle School in the total amount of $68,130. BUDGET IMPLICATION: $ BUDGETED AMOUNT ADVISORY COMMISSION ACTION ❑ PLANNING ❑ PUBLIC SAFETY ❑ PUBLIC WORKS ❑ PARKS AND RECREATION ❑ HUMAN SERVICES/RIGHTS ❑ ECONOMIC DEV. AUTHORITY ❑ SUPPORTING DOCUMENTS ,� . $ ACTUA� AMOUNT FUNDING SOURCE REVIEWED ❑ ❑ ❑ ❑ ❑ ❑ ❑ APPROVED ❑ ❑ ❑ ❑ ❑ ❑ ❑ DENIED ❑ ❑ ❑ ❑ ❑ ❑ ❑ � MEMO/LETTER: Memo from Jennifer Levitt dated 4/11/13 ❑ RESOLUTION: ❑ ORDINANCE: ❑ ENGINEERING RECOMMENDATION: ❑ LEGAL RECOMMENDATION: � OTHER: SW1ND CCIP Grant Agreements ADMINISTRATOR'S COMMENTS ? �� ' „ / c�- ity Administrator Date ************************************************ COUNCIL ACTION TAKEN: ❑ APPROVED ❑ DENIED ❑ OTHER CITY OF COTTAGE GROVE � MINNESOTA To: Honorable Mayor and City Council Ryan Schroeder, City Administrator From: Jennifer Levitt, P.E., City Engineer Date: April 11, 2013 Subject: Accept SW1ND CCIP Grant for Cottage Grove Middle School and Cottage Grove Public Works Improvements Background/Discussion: The City applied for the South Washington Watershed District's (SWWD) Coordinated Capital Improvements Program (CCIP) grant for the stormwater improvements for the existing stormwater retention area at the Cottage Grove Middle School and at the Public Works Facility. The City was eligible to apply for 35% of the total project cost with a maximum of 10% applied for engineering and administration. The total project cost submitted was $194,650, so the total value of the grant that could be applied for was $68,130. The City received notice from the SW1ND awarded $68,130 for the two projects. The attached agreements outline the conditions of the grant and the value of award. Recommendation: It is recommended to approve the South Washington Watershed District agreements for the Cottage Grove Public Works Facility and the Cottage Grove Middle School in the total of $68,130. ' �.� „�...: r�,, • �►,. �,.� . �� . , General information (to be compieted by SWWDy Organ&aUon SWWD 'it conta�t amended, attach amendmenl form(sj to this contrott. Organization/Contact Page 1 of 2 2013 COORDINATED CAPITAL IMPROVEMENT PROGRAM CONTRACT ContractNumbzr I OtherfederalorotNerstate 2013-CGP-01 `"'�s Yes � t!o � Amendment � Board meeUng date(sj Cance!ed ❑ Boatd meating date: OrgapFzation: City of Gottage Grove ContaGt Person Address City/State Zfp tode Jennifer Levitt 12800 Ravine Pkwy Cattage Grove, MN 55016 Ema11 PFwne jlevitt@cottage-grove.org 651-458-2890 Project location Addreis� � � � Gty/State Tlpmde Cottage Grove Middle School Cottage Grove, MN 55016 Contract tnformation I{we), the underslgned, do hereby request cost-share assistance to help defray the cost of installing the following practice�s) listed on the second page of this contract. it is understood that: 1. SWWD's Water Qualitv Cost Share Pro�ram is a Re�mbursement Pro�ram. Applicants will be reimbursed for the contract amount upan successful completion of the project and submission of all required documentation. 2. The land occupier is responsib(e fo'r full establishment, operation, and maintenance of al) practices and upland treatment criteria applied under #his program ta ensure tha# the conservation objective of the practice is met and the effective life a minimum of 10 years, is achieved. 3. Should the land occupier fail to maintain the practice during its effective life, the land occupier is liat�le to the South Washington Watershed District for the amount up to 100% of#he amount of financial assistance received to install and establish the prac�ice unless the failure was caused by reasons beyond the land occupier's control, or If conservation practices are applied at the land occupier's expense that provide equivalent protection of the soil and water resources. 4. This cantract, when approved by the SWWD board, wili remain in efiect unless canceled by mutual agreement. Practices wiil be installed'by December 31. 2014 unless this contract is amended by mutual consent to reschedu(e the work and funding. 5. Items of cost for which reimbursement is claimed are to be supported by invoices/receipts for payments and will be verified by the organization board as practical and reasonable. The organization board has the authority t6make adjustments to the costs submitted for reimbursement; Updat¢ 2013 Page 2 of 2 Appl(cant Signatures 7he land occupier's signature indicates agceement to: 1. Grant the SWWD's representative(s) access to the parcel where the conservation practice will be located. 2. Obtain all permits required in conjunction with the installation anci es#ablishment of the practice prior to starting construction of the practice. 3. Be responsible for the operation and maintenance of conservation practices applied under this program in accordance with an operation and maintenance plan prepared by the organization technical representative, if applicable. 4, Not accept cost-share funds, from state and federal sources combined, tt�at are in excess of'x00% percent of the total cost to establish the conservation practice and provide copies of all forms and contracts pertinent to any other state or federal programs that are contributing funds toward this project. Conservation Practice (to be completed byTechnical Representative) The primary practice for which cost-share ]s requested is: Biofiltration cells I' The estimated benefits of this proje�t are; EngineeredPraftice TofalPro}eckCostEstin c �`� SO f �"°� $130,650.00 Eco!ogical practke (Dyes or �no) To)a1 Pbosphotus Captured Nitro&en faptured � Rurro(f Volume ReductFon � 5.5 fbs/yr Technical Assessment and Cost �stimate I have the appropriate technical expertise and have reviewed the site where the above tisted practice is to be installed and find it is needed and that the estimated benefits and costs are practical and reasonable. Amount Authorized far Fittancial Assistance (to be completed by SWWDj The SWWD Board has authorized the foliowingfior financial assistance, total nat to exceed the overall percent listed indicated in 4, above. $ 45J30.00 fram 2013 CCIP Enter program�name and ('uca) year $ frotn $ from Board Meefing Date AutFroriied 4/9/13 , EnteF program name a nd fiswl year Enterprogram name aqd fiscatyear Tota� Amavnt Authorized $45,730.00 Update2013 SdUth WaShin�#011 _ �� z � �►i��ric� General Information (to be completec[ bySW1N0) Organization/Contact Page 1 of 2 2013 COORDINATED CAPITA! IMPROVEMENT ..� .. � ., Organaa8on City of Cottage Grove fomact Penon Address �� Gry/State Zip toda Jennifer Levitt �.2800 Ravine Pkwy Cottage Grove, MN 55016 Emai� Phone jleVitt@cottage-grove.org 651-458-2890 Project Location Address �� Ciry/Stat¢ � Zipcode� � Cottage Grove Public Works Facility Cottage Grove, MN 55016 Contract information 1(we), #he undersigned, do hereby request cost-share assistance to help defray the cost of installing the following practice(s) fisted on the second page of this contract. It is understood that: 1. SWWD's Water Quality Cost Share Pro�ram is a Reimbursement Prflgram. Applicants wil( be reimbursed for the contract amount upon successful completfon of tl�e project and submission of all required documentation, 2. The (and occupier is responsible for ful( establishment, operation, and maintenance of all practices and upland treatment criteria applied under this program to ensure that the conservation objective of the practice is n�et and the effective life, a minimum of 10 years, ls achieved. 3. Should th� land occupier fail to maintain theprackice during its effective life, the land occupier is liable to the Sou#h Washington Watershed District for the amount up to 100% of the amount of #inanciat assistance received to install and establish the practice unless the failure was caused by reasons beyond the land occupier's control, or if eonservatian practices are applied at the land occupier's expense that provide equivalsnk protection of the soil and water resources. 4. This contract, when approved by the SWWD board, will remafn in effect unless canceled bymutual agreement. Practices will be installed by December 31, 2014 unless this contract is amended by mutual consent to reschedule the work and funding. 5. Itemsof cost for which reimbursement is cla(med are to be supparted by invoices/receipts for payments and will be verified by the organization board as practical and reasonable. The organization board has the authority to make adjust�nents to the costs submitted for reirnbursement. � Update 2013 Page 2 of 2 Applicant Signatures The land occupier's signature indicates agreement to: 1. Grant the SWWD's representative(s) access to the parcel where the conservation practice wifl be located. 2. Obtain all permits required in conjunction with the installation and estabfishment of the practice prior to starting construction of the practice. 3: Be responsible for the operation and maintenance of conservation practices applied under this program in accordance with an operation and maintenance pfan prepared by the Qrganization technical representative, if applicable. 4. Not accept cost-share funds, from state and federal sources combined, #hat are in excess of 100% percent of the total cost to establish the conservakion practice and provide copies of all forms and contracts pertinent to any other state or federal programs that are contributing funds koward this project. Uzte � Organ�z�t(oq'sAuthorizedRepresentat�re Conservation Practice (to 6e completed by Technical Representative) 7he primary practice for which cost-share is requested is: The estimated benefits of this Technical Assessment and Cost Estimate I have the appropriate technical expertise and have reviewed the site where tfie above listed practice is to be installed and find it is needed and #hat the estimated benefits and costs are practical and reasonable. Amount Authorized for Financial Assistance (to be completed by SWWDj The SWWD Board has authorized the following for financial assistance, total not to exceed the overall percent listed indicated in 4, above. $ 22 400.00 from 2013 CGIP Enter program name and fucalyear $ from $ from 4J9/�3 Date Entet program namA arul fiscal year Enter proerom name and fiscat yea t Tolal Amount Autharized $22,400,00 Update 2013 P�asSkestandardsorel:gl5!ecomponent(s) EngtneeredProcttce TotalP�o)ettCostEs4imate Public Works Facility Improvements «"eSOf $64,000 Eco!ogical pra�tice ' ��yes or �no) 2013 SWWD Coordinated Capital Improvement Program Application Applicant Information LGU: City of Cottage Grove LGU Representative: Jennifer Levitt Address: 12800 Ravine Parl<way City: Cottage Grove State: MN Zip Code: 55016 Phone: (651) 458-2890 Email: jlevitt@cottage-grove.org Project Location Project Location: South of Indian elvd and West of CSAH 19 on the Cottage Grove Middle School site Watershed Management Unit: South Washington Primary Waterbody AffecYed: Downstream Protect and Manage 1 wetlands, Mississippi River Pi•oject Description Purpose/Need The existing CSAH 19 drainage system south of 70 Street is a rural section with roadside ditches routing stormwater to a low point in the southeast portion of the Cottage Grove Middle School site. From this point, CSAH 19 runoff leaves County right-of-way via a swale and travels west across the school property to an existing dry stormwater pond south of the school building. The dry pond discharges to a private stormsewer conveyance system that connects to the City's trunl<conveyance and ponding system. While the existing drafnage system has no constructed water quality treatment features, the vegitated ditch system and sandy soils in the area presumably reduce pollutant loads and runoff volumes through interception, biological processes, and infiltration. As part of the County's CSAH 19 and 70 Street project, a new trail is proposed on the west side of CSAH 19 between Jorgensen Ln and Indian Blvd. This new trail segment will fill in the existing rural ditch in this stretch and the existing ditch conveyance replaced by stormsewer. The total existing drainage area and impervious area routed to the school in the proposed condition is reduced by 2.8 acres and 0.4 acres, respectively. However, with the elimination of the existing ditch on the west side of CSAH 19 between Jorgensen Lane and Indian Blvd, the existing water quality treatment provided by the rural ditch section will be eliminated. 3 Even with a reduction in the total drainage area and impervious area to the school site, the City is seelcing to mitigate the lost water quality treatment benefit tributary to the school site. The proposed Cottage Grove Middle Schooi Water Quality Improvements will provide water quaity treatment to the CSAH 19 ditch drainage discharging to the school site. Goals The goal of the Cottage Grove Middle School Water Quality Improvements is to provide water quality treatment to the CSAH 19 ditch drainage that is directed across the school site (approximately 16,6 acres). The City is proposing to install two biofiltration cells in series that will capture and treat the CSAH 19 right-of-way drainage that is routed to the low point south of Cottage Grove Middle School. Roadway impervious runoff Is, and will continue to be, conveyed in long vegetated ditches to the biofiltration cells. These ditches provide substantial pretreatment and presumably both water quality treatment and volume control benefits. The blofiltratlon cells will capture and treat the remaining runoff that is routed to the school site. The proposed Improvements are located within a City Drinl<ing Water Supply Management Area, where the City prohibits infiltration; therefore, the proposed biofiltration cells w111 be lined with clay to minimize infiltration. 8enefits/Measurable Results (e.g. estimated pollufantreductions, reduced flooding risk etc.) According to our preliminary calculations, the proposed 16.6 acre drainage area to the school site will generate approximately 9.1 Ibs. of Total Phosphorus (TP) annually. Per the performance estimations provided in the SWWD Standards Manual, it is estimated that the proposed biofiltration cells wlll remove 60% of the annual TP load from the CSAH 19 right-of-way. Based on this estimate, the bioflltration cells wlll remove approximately 5.5 Ibs. ofTP annually, In addition, the ciay liner In the biofiltratlon cells will protect the City's Drinking Water Supply Management Area. Project Budget Total Project Cost: $130,650 CCIP Funding Requested (maximum of 35% oftotal proJect cost): $45,730 I cerrify to the best of my Icnowledge that the information included In this applicatlon Is true, complete, and accurate Slgnature �� Date � Z� � � 4 -==r��-�� - <<,•..,�`-``' 7oth SlroeC : � � - r � '_'!i , ; . . . , , ,. r 'i :r , _ , _ � '' i',;- ,_ ",^' , i ', � . � _� � { ti• , � i � • � � ' �.. ' � ti � i - � �� i + � � -� ; �, � , , ', • � Cottage . � , � , �: i � � Grove ' � ti � o-. � � � � ? � . � . r�. . . . q � I �.', � i � . ,( . 1 ! � ,_,. he«Pddennb4 � ; . ,., f,. � _ ' '' � '"� ' �r �' � ' ~ t'� Cotfage Grove Mlddle School ., �>•�a , •i '� 1,. ;� �,, i y.>, +� v�: Jorgensen Ln Water Quality Improvements � - � j. r ' � ,., , � . , , � ` � � �� i' SWWD 2013 CCIP Application , � . ,� t R , r ' , ;: . ,. � - , f Figure 1 . . � , - , � , .� + , 1 , j � ,�, r - ` ;+ March 2013 r� � r t �� '1�� } 'S�: r �� • M ��l ', � r :.� � - I N . t� � � � � � ; � !' 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I `' �_ . � i � � j U �' � �, - � i' t r �" �i ' t. ,>4' • •� i. - � 1 It- � S . . -. , . . �: , �, �. . . f�, . j� ,"r y� � r � 1 •�,.I r�. � . � ✓ � ' . �� }� , . .� . . .. �• � 1 ; f i ,; , ' _ ; ��♦ k � �. I'.� ' rr � h - . ., . � j � r � �{ ' rr fi , � ,� t ,tf ':� (-.�� 1 , ., ,� yj , ,y '� . '� �,� � ' ! �• 1i ; i:; . . . ,�,,...-.,. � • „ ', ,. 80th SireeY � ' - - •'�,` �� ..` � ; � i .:� ` 1 � , �� ( ��;`� � . i � ��- � �; y.-$W��:','� ��' R:1dle�itlmunicipallcopege_grove_ct inn140GEN1Speclal lss�es:8 P�oJecIs12013�2013 CCIPAppIlcellonSCCIP Figure.nlxd Z013 S�l11WD Coardinated �ap�ta.� Improvement Program App��catxon Applicant znformation LGU: City of Cottage Grave LGU Representative: Jennifer Levitt Address: 12800 Ravine Parl<way South City: Cottage Grove State; MN zip Code: 55016 Phane: 651-458-2890 Emaii: jlevitt@cottage-gr�ve.org P��oYect Loca�ion Project Location: Cottage Grove Public Warks Facility Watershed Management Unit: South Washington UVatershed District Primary Waterbody Affected: DNR Waterbody 86 W is 715 feet downstream and Mississippi River is 1.5 miies downstream. Projec� Desc��iption Purpose/Need The City of Cattage Gr�ve is a regulated Municipal Separate Storm Sewer System {MS4} which is required to comply with the good housekeeping practices af the M54 National Pollutant pischarge Elimination System {NPDES} Phase Il permif. The iUPDES program requires you to sliminate the discharge of pollutants to the Maximum Extent Practicable. The City is currently incorparating a number of best management pracfiices at their facility; however as a measure ta ga above and beyand the requirements the City is pursuing a couple of water quality improvements at their public warks facility. 7his application includes a request for the incorpora#ion of a hydrodynamic separator and a sediment trap tFigure 1}. The City of Cottage Grove's public works facility is used for operations associated with street maintenance, park and open space maintenance, and utility maintenance. There are stocicpiles stored at the facility which include aggregate used for chip sealing, sand, and materials stored in the boneyard associated with utility maintenance. _ � 3 � The anticipated pollutants of concern for this project include TSS, hydrocarbons, chlorides, and metals such as copper, lead, and zinc. Phosphorus is also a potential pollutant; however is not cansidered a primary pollutant of concern far this facility. The Hydrodynamic Separator is proposed ta be instalied in the storm sewer system that collects the runoff from a 5.8 acres drainage area {�igure 1), Activities within fihis drainage area include fueling, equipment washing, stackpiling, and equipment storage. The impervious surface is 3.3 acres and the gravel surface is 2.5 acres. The Hydrodynamic Separator is proposed to be installed in an off-!i€ze configuration to bypass high flows that could result in suspension of sediment captured within the Hydrodynamic Separator. 7he SedimentTrap is prt�posed to be installed nearthe south entrance to the facifity near95th Streefi South (Figure 1�. The sediment trap collects the drainage from 1.9 acres. The activities within this drainage area include stocl<piling of sand, covered salt storage, and loading of salt into trucl<s. puring a site assessment that was completed on April 5, 2012 caurse grained sand materia) was observed ta be accumulating in this area and entering into the storm sewer system. The sediment trap wil[ include removing the existing catich basin, excavating a basin approximately 400 square feet in size to a depth of approximately 1 foot in depfih, installing an outlet structure, and stabilizing the sediment trap using articulating concrete block. The outlet structure wi11 be placed approximate a half foot in depth from the bottom of fihe system to encourage infilfiration. The articulafiing concrete blocl< is proposed to provide easy maintenance of the system. Goals The overall goal is to reduce the discharge of pollutants that could potentially impact downstream water bodies. In addition, the City of Cottage Grove discharges to the Mississippi River, which is identified as impaired farTurbidity. A Total Maximum Daily Load plan is currently underwaythat is propased to require a turbidity reduction of 25%. Implementation of these BMPs will result in a TSS reductian fihat couEd be applied toward achieving the City of Cottage 6rove's Waste l.oad Alfocation. Benefits/Measurable ResulPs (e.g. estimated pollutant reducPions, reduced flooding risk, etc.J The hydrodynamic separator wili be designed to provide an 80% TSS removaf on an average annual basis. To deterrnine the approximate sediment load that will be removed by a hydrodynamic separator, the model "Sizing Hydrodynamic Separators and Manholes" developed by 8arr Engineering based and the University of Minnesata's St. Anthony Falls l.aboratary was utilized. It is es#imated that this Hydrpdynamic Separator will remove a sediment load of 24,622 pounds per year. Although our primary polfutan� of concern is TSS, we can afso equate this to an estimated Total Phosphorus (TPj removal. "fhe Capitol Regian Watershed District (CRWD} completed a study on sediment accumulating in various BMPs "Arlington Pascal Project: Gross Solids Accumulation Study, 2012". Hydrodynamic Separators and sumps were found ta have a TP cancentration of 402 mgjkg. lf we assume that the praposed Hyclrodynamic Separator wilf have a similar TP concentration, this equates to an estimated TP removal of 9.8 pounds per year. 4 � The sediment trap is intended to capture the coarse grainsd materiaf that was observed to be accumulating near the catch basin. it was estimated using SHSAM thal the sediment load discha� to this area is approximately 11,409 paunds per year and assuming a TSS removal efficiency af 80%the system wilf capture 9,�27 pounds ofsediment annua((y. Project Budget Tota1 Project Cost: $64,000 * The cost estimate far the hydradynamic separator was determined by obtaining estimated costs fpr a system that wou)d achieve 80% TSS removal on an average annual basis. CCIP �unding Requested (maximum of35% oftokal project cost): $22,400 ! certify to the best of my knowledge that the information induded in this application is true, compJete, and accurate Signature p �(.�fi� pate a J/Z-S /1 J,,, ,_,, � � � � �. •• � `. ,. * �� +_ . .