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HomeMy WebLinkAbout10-22 Council Ordinance I " Reading : pec�1 �� 12 2�2 Publication : �QV) unr 11 2022) 2 °a Reading : f U a V � QU22j Effective : r,,- r (p , 2(y23 VI CITY OF LINO LAKES ORDINANCE NO . 10 - 22 AN ORDINANCE AMENDING SECTION loll RELATING TO THE REGULATION OF STORMWATER , EROSION AND SEDIMENT CONTROL The City Council of Lino Lakes ordains : Section 1 . The Lino Lakes Code of Ordinance , Chapter 1011 Stormwater, Erosion and Sediment Control is hereby amended as follows (new language is underlined , and deleted language is stricken) : CHAPTER 1011 : STORMWATER , EROSION AND SEDIMENT CONTROL Section 1011 . 001 Title 9S2 1011 . 002 Findings 1011 . 003 Jurisdiction 1011 . 004 Statutory authority 1011 . 005 ' Adoption by reference 1011 . 006 Definitions 1011 . 007 Applicability 1011 . 008 Exemptions 1011 . 009 Tonhninnl rofo re. nnoReserved 1011 . 010 Grading , erosion and sediment control requirements 1011 . 011 Stormwater management requirements 1011 . 012 Inspections and maintenance 1011 . 013 Plan review procedure 1011 . 014 Financial securities 1011 . 015 Enforcement 1011 . 016 Abrogation and greater restrictions 1 10110001 TITLE . This chapter shall be known as the Lino Lakes Stormwater , Erosion and Sediment Control Chapter and will be referred to herein as this chapter . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) 10110002 1 %001 .' � LEFINDINGS . + � nhli � h r� orfnrmnnno cz +�n � rinrrliz + hn + 1niill : LW r1f+ inn from � �rnnff nnrl annQ + ri lr�+ inn Qi + cn orn � inn • rlo � iolnnmon + 5z • > > > > d1nAhr ' Q + hormnl c + rocz %z nnrl n + hor 1 1rhnn nnlll i + nn + Q • > > > ( 7 ) promo + o infil + rn + inn nnrl orn , inrlinin + or rorahnrA LA7� g . , , s + ronrmiz 1n19M + 1nnHQ lobos seasonal rni�{��'T rinnrinn eGGS1ist s- -8s0 -1,F;nn o� � rl I n _ 9R _ 9n �I The city finds that uncontrolled stormwater runoff and construction site erosion from land development and land -- disturbing activity can have significant adverse impacts upon local and regional water resources , diminishing the quality of public health , safety , public and private property , and natural resources of the city . Specifically , uncontrolled construction site erosion and stormwater runoff can : ( 1 ) Threaten public health , safety , property , and general welfare by increasing runoff volumes , peak flood flows , and overburdening storm sewers , drainage ways , and other storm drainage stems ; � ( 2 ) Diminish the capacity of lakes and streams to support fish , aquatic life , recreational uses and water supply uses by increasinq_pollutant loadings of total 2 sediment , suspended solids , nutrients , heavy metals , bacteria , pathogens , and other urban pollutants ; � 3 ) Degrade physical stream habitat by increasing stream bank erosion , increasing stream bed scour , diminishing groundwater recharge , diminishing stream base flows , and increasing stream temperatures ; � (4 ) Undermine floodplain management efforts by increasing the incidence and levels of flooding; ( 5 ) Alter wetland communities by changing wetland hydrology and increasing pollutant loading ; and ( 6 ) Generate airborne particulate concentrations that are health --threatening or may cause other damage to property or the environment . ( Ord . 09 - 15 , passed 10 - 260002015 ) 1011 . 003 JURISDICTION . The provisions of this chapter shall apply to all lands within the incorporated boundaries of Lino Lakes . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) 1011 . 004 STATUTORY AUTHORITY . This chapter is adopted pursuant to the authorization and policies contained in M . S . Chs . 103B , 103F , and 462 and Minn . Rules Chs . 7050 ) 7090 , and 8410 . This chapter is intended to meet the current construction site erosion and sediment control and post- construction stormwater management regulatory requirements for construction activity and small construction activity as defined in the standards of the NPDES construction general permit , as amended . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) § 1011 . 005= NFAM N E.". NCGr%. ADOPTION BY REFERENCE . YT � LW I �-n ; 3 % ! %moo7 7 %A LA7 %M# 7 L oOl I I L a 7 Is easing ! ! % % % % % % 7 7n mAI `� lnnro7 �` 1nf'1rY' %MOTa- ss' -, of I ainclo � in�.thr d :im � r� o fn nrnnind i nr rho enyirnn�m�� Mai na _ l R nnizQorJ I n _ 9R _ � n1 F1 W , %of - - . - , Certain Rules of the Rice Creek Watershed District ( the " Rules " ) and Standards of the Vadnais Lake Area Water Management Organization (the " Standards " ) and any amendments or revisions thereto referenced herein are adopted as ordinances of the city . Where the Rules refer to the " District " they shall be deemed as referring to the cites Where the Standards refer to the "VLAWMO " they shall be deemed as referring to the city . Where conflicts exist between this Ordinance and the Rules or Standards , the =greater requirement shall apply . 1011 . 006 DEFINITIONS . Unless specifically defined below , words or phrases used in this chapter shall be interpreted so as to give them the same meaning as they have in common usage and to give this chapter its most reasonable application . For the purpose of this chapter , the words MUST and SHALL are mandatory and not permissive . All distances , unless otherwise specified , shall be measured horizontally . As used in this chapter , the following words and terms shall have the meanings ascribed to them in this section . 100- YEAR FLOOD ELEVATION. The elevation of water resulting from the Critical Duration Flood Event . See definition of Critical Duration Flood event . BEST MANAGEMENT PRACTICES (BMP!s) . Measures taken to minimize negative effects on water resources and systems as documented in the Minnesota Construction Site Erosion and Sediment Control Planning Handbook (MBWSR , 1988 ) , Protecting Water Quality in Urban Areas ( MPCA , 2000 ) and the Minnesota Stormwater Manual ( MPCA , 2014 ) as amended . BETTER SITE DESIGN (BSD) ,, An approach to managing runoff that seeks to attain post development hydrology which mimics the undeveloped condition in terms of volume , rate and timing of runoff . The goals of BETTER SITE DESIGN include reducing the amount of impervious cover , increasing the amount of natural lands set aside for conservation , using pervious areas for more effective stormwater treatment , innovative grading and drainage techniques and through the review of every aspect of the project site planning process . BETTER SITE DESIGN involves techniques applied early in the 4 design process to reduce impervious cover , conserve natural areas and use pervious areas to more effectively treat stormwater runoff and promote a treatment train approach to runoff management . WIN BIOPIC TRA TION. rerrneye ) nFatei vela erne, tt m , l h o � g4pnf � r� � r� ir� ftnn . _ _ A bioretention practice in which an underdrain is used . Typically , most of the water entering MIN the biofiltration practice enters the underdrain and is returned to the stormwater system , but some water infiltrates ( unless the BMP has an impermeable liner) or evapotranspires . The underdrain may be at or elevated above the bottom of the practice ( i . e . at the media - soil interface ) ._ BIORTTENTION. A soil and plant - based stormwater management best management practice( BMP ) used to filter runoff . BRIDGE. A road , path , railroad or utility crossing over a waterbody , wetland , ditch , ravine , road , railroad or other obstacle . BRIDGE SPAN . The clear span between the inside surfaces of a bridge ' s terminal supports . CHANNEL . A perceptible natural or artificial depression , with a defined bed and banks that confine and conduct water flowing either continuously or periodically . CONSTRUCTION ACTIVITY. Activities including clearing,,grading , and excavating , that result in land disturbance of equal to or greater than one acre , including the disturbance of less than one acre of total land area that is part of a larger common plan of development or sale if the larger common plan will ultimately disturb equal to or greater than one acre . This includes a disturbance to the land that results in a change in the topography , existing soil cover; ( both vegetative and nonvegetative ) , or the existing soil topography that may result in accelerated stormwater runoff that may lead to soil erosion and movement of sediment . Construction activity does not include a disturbance to the land of less than five acres for the purpose of routine maintenance performed to maintain the original line and grade , hydraulic capacity , and original purpose of the facility . Routine maintenance does not include activities such as repairs , replacement and other types of non - routine maintenance . Pavement rehabilitation that does not disturb the underlying soil e . g . , mill and overlay projects ) is not construction activity . . . . . 5 CONVEYANCE SYSTEM . Open channel , pipe or tile that is not a Public Drainage System . A portion of a conveyance system is defined as " regional " if it carries flows from a drainage area of greater than 200 acres . CRITICAL DURATION FLOOD EVENT. The 100 - year precipitation or snow melt event with a duration resulting in the maximum 100 - year return period water surface elevation . The CRITICAL DURATION FLOOD EVENT is generally either the 100 - year , 24 hour rainfall event as found in NOAA Atlas 14 or the ten - day snow melt event assumed to be 7 . 2 inches of runoff occurring on frozen ground ( CN = 100 ) ; however , other durations ( e . g . , 6 - hour) may result in the maximum 100 - year return period water surface elevation . DETENTION BASIN . Any natural or man - made depression that stores stormwater runoff temporarily . DEVELOPMENT. Any land - disturbing activity resulting in creation or reconstruction of impervious surface including , but not limited to , municipal road construction . Normal farming practices part of an ongoing farming operation shall not be considered a DEVELOPMENT. DRAINAGE SYSTEM. A system of open channel , pipe or tile , to drain property , including laterals , improvements , and improvements of outlets , which may or may not be a public system under the jurisdiction of a watershed district under M . S . Chs . 10313 , 103D , or 103E . EMERGENCY OVERFLOW (EOF) . A primary overflow to pass flows above the design capacity around the principal outlet safely downstream without causing flooding . RR (1CIC) NI 0 hin CMIhWnIT C (1ICITR (1I D1 A hl A nnhpnnf PA 16000 h/1I_ nr oryi i � i � tont LI 11 %00 W-b-a t > or > r► nvor , ancd nnnQf n in� inn nh � � inrr EXCAVATION. The displacement or removal of soil , sediment or other material . FILTRATION. A stormwater quality BMP that uses either natural media such as soil or vegetation or manufactured media to trap pollutants such as nutrients and particles in surface water . nf 0 on ♦ Anil fni 'W or ornsivo nn Ant rli :L s n FLOODPLAIN. The beds proper and areas adjoining a .,,bedy-wetland , lake or watercourse tht nro i a nu� ndntedwhich have been or hereafter may be covered by the d1ir " no thin re ional flood . 6 FLOODWAY FRINGE. That portion of the floodplain outside of the floodway . Flood fringe is synonymous with the term FLOODWAY FRINGE used in the Flood Insurance t study for Anoka Coun fir-- fleet . FLOODWAY. , thn . The bed of a wetland or lake and the channel of a watercourse and those portions of the adjoininq floodplain which are reasonably reguired to carry or store the regional flood discharge . FREEBOARD . Vertical distance between the 100 -year flood elevation or emergency overflow elevation of a water basin or watercourse and the elevation of the regulatory elevation of a structure . IMPERVIOUS SURFACE. A compacted surface or a surface covered with material ( i . e . , gravel , asphalt , concrete , Class 5 , etc . ) that increases the depth of runoff compared to natural soils and land cover . Including but not limited to roads , driveways , parking areas , sidewalks and trails , patios , tennis courts , basketball courts , swimming pools , building roofs , covered decks , and other structures . INFILTRATION. Water entering the ground through the soil . LAND-DISTURBING ACTIVITY. Any disturbance to the ground surface that , through the action of wind or water , may result in soil erosion or the movement of sediment into waters , wetlands or storm sewers or onto adjacent property . LAND= DISTURBING ACTIVITY includes but is not limited to the demolition of a structure or surface , soil stripping , clearing , grubbing , grading , excavating , filling and the storage of soil or earth materials . The term does not include normal farming practices as part of an ongoing farming operation . LANDLOCKED BASIN. A water basin lacking an outlet at an elevation at or below the water level produced by the critical duration flood event , generally the ten - day snowmelt event . LOW ENTRY ELEVATION . The elevation of the lowest opening in a structure . LOW FLOOR ELEVATION. The elevation of the lowest floor of a habitable or uninhabitable structure , which is often the elevation of the basement floor or walk - out level . MILL, RECLAMATION AND OVERLAY. Removal of the top layer ( s ) of an impervious surface ( e . g . roadway , parking lot , sport court ) by mechanical means , followed by the placement of a new layer of impervious surface , without exposure of the underlying native soil . 7 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) STORMWATTR DISCHARGE PERMIT. A permit issued by the Minnesota Pollution Control Agency that authorizes the discharge of pollutants to the waters of the state . NATIONWIDE URBAN RUNOFF PROGRAM (NURP) . Urban Runoff Program developed by the Environmental Protection Agency to study stormwater runoff from urban development . ORDINARY HIGH WATER LEVEL (OHWIJ. . The highest water level elevation that has been maintained for a sufficiently long period of time to leave evidence upon the landscape . The OHWL is commonly that point where the natural vegetation changes from predominantly aquatic to predominantly terrestrial . If an OHWL has been established for a waterbody by the Minnesota Department of Natural Resources , it will constitute the OHWL under this definition . OWNER. The person or party possessing the title of the land on which the construction activities will occur ; or if the construction activity is for a lease , easement , or mineral rights license holder , the party or individual identified as the lease , easement , or mineral rights license holder ; or the contracting government agency responsible for the construction activity . POLLUTANT. A substance that pollutes something , especially water or the atmosphere . PUBLIC LINEAR PROJECT. A project involving a roadway , sidewalk , trail or utility not part of an industrial , commercial , institutional or residential development . RECONSTRUCTION . Removal of an impervious surface such that the underlying structural aggregate base is effectively removed and the underlying native soil exposed . REGIONAL FLOOD . A flood which is representative of large floods known to have occurred generally in Minnesota and reasonably characteristic of what can be expected to occur on an average frequency in the magnitude of the 1 % chance or 100 - year recurrence interval . REGIONAL FLOOD is synonymous with the term BASE FLOOD used in the Flood Insurance Study . SEASONAL HIGH WATER TABLE . The highest known seasonal elevation of groundwater as indicated by redoximorphic features such as mottling within the soil . hit fho r� ro � onGo of rnnffled one , iroS OrrW( fhawO r 1nfnrm :4fiWnn_ SEDIMENT CONTROL . Methods employed to prevent sediment from leaving the site . SEDIMENT CONTROL practices include silt fences , sediment traps , earth dikes , drainage swales , check dams , subsurface drains , pipe slope drains , storm drain inlet protection , and temporary or permanent sedimentation basins . SHORELAND . Land located within the following distances from the ordinary high water elevation of public waters : 8 ( a ) Land within 1 , 000 feet from the normal high watermark of a lake , pond or flowage ; and ( b ) Land within 300 feet of a river or stream or the landward size of a floodplain delineated by ordinance on the river or stream , whichever is greater . STABILIZED . The exposed ground surface has been covered by appropriate materials such as mulch , staked sod , riprap , erosion control blanket , mats or other material that prevents erosion from occurring . Applying mulch , hydromulch , tackifier , polyacrylamide , or similar erosion prevention practices is not acceptable stabilization in temporary or permanent drainage ditches or areas where concentrated overland flow occurs . Grass seeding is not stabilization . STORM SEWER. A pipe system for stormwater conveyance . STORMWATER. Defined under Minn . Rules 7077 . 0105 , Subd . 41 ( b ) , meaning precipitation runoff , stormwater runoff , snowmelt runoff , and any other surface runoff and drainage . STORMWATER FACILITY, PRIVATE. Any BMP that is maintained by a private property owner , or other private entity and not maintained by a public agency . STORMWATER MANAGEMENT PLAN . A plan for the permanent management and control of runoff prepared and implemented in accordance with the standards set forth in this chapter . WatorhnHunc f� ho rmavimi m ov� or- f rnraawfiaa - STORMWATER POND . Constructed basins placed in the landscape to capture sto rmwate r ru n off . SUBDIVISION. The legal separation of an area , parcel , or tract of land under single ownership into two or more parcels , tracts , lots . SURFACE WATERS . All streams , lakes , ponds , marshes , wetlands , reservoirs , springs , rivers , drainage systems , waterways , watercourses , and irrigation systems whether natural or artificial , public or private . UNDERGROUND WATERS . Water contained below the surface of the earth in the saturated zone including , without limitation , all waters whether under confined , unconfined , or perched conditions , in near surface unconsolidated sediment or regolith , or in rock formations deeper underground . The term GROUND WATER shall be synonymous with underground water . WATER QUANTITY BEST MANAGEMENT PRACTICE. The use of on - site runoff management practices such as biofiltration , infiltration , buffers /conservation areas , 9 impervious disconnection , and greenway connections to satisfy stormwater management requirements . WATERS OF THE STATE. As defined in M . S . -a-� . n � , %R�f ` 2J03G . 005 , Subd . 17 means surface or underground waters , except surface waters that are not confined but are spread and diffused over the land . Waters of the state includes boundary and inland waters . , . V6A I ther WETLAND . Land transitional between terrestrial and aquatic systems , as defined in M . S . § 103G . 005 , Subd . 19 . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) § 1011 . 007 APPLICABILITY . All bland - disturbing activity may be subject to standard erosion and sediment control BMPs . A % , man . ryominn + permit shall be required for projects that meet or exceed the thresholds established in § § 1011 . 010 and 1011 . Oils ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) 1011 . 008 EXEMPTIONS . The following bland - disturbing activities will be exempt from the rrrnrlinrrZI o Ire Si0n nnr1 cundlrmon�nn�nT rnl � nrl + nrm � ni � + or m � n � nom permit requirements of this chapter : ( 1 ) Cemetery graves ; ( 2 ) Routine agricultural activity such as tilling , planting , or harvesting of agricultural , horticultural , or silvicultural (forestry ) crops ; and ( 3 ) Emergency work necessary to protect life , limb , or property . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) 1011 nna TIZC WNICAI RFFr.: Dr.: h1 ` mac ( � 1 Thin 1 Inn 13koQ C , irf� no Mlnfinr n /I � nznomont hlin --��7 Thia I inn nk r 1 o � � nninoorinn rlo � inn nof � ilc . Thin I inn I nhri_ Cof � nrlird C 'hi Rnor+ ifin � � innnQ ( J ) Th (-'in Rir + o rook 11\ 1finrchind MQtrint ( Qf\ AM ) Qi 11PQ 10 I" l �J�7 %iG( C)rd OQ 1 � n ir- SPH � n _ 92 _ � n1 9N —ram . ---I-W _ , 1011 . 010 GRADING , EROSION AND SEDIMENT CONTROL REQUIREMENTS . ( 1 ) Grading, erosion and sediment control (ESC) . A , ion anl (J sodimonf nnnf nl ( rc (' ) permit - - -- , shall be required for all proposed bland - disturbing activity unless otherwise exempted in this chapter that meets any or all of the following : ( a ) Includes excavation , filing , or stockpiling of erodible material in excess of 50 cubic yards per acre , ahnnnol fnr n dicf :4nap of inn foot nr mnro • { c4to. Disturbs more than one acre of land or 10 , 000 square feet if anypart of the disturbed area is within 300 feet of a lake , stream or wetland and drains towards it ; and /or O)Lc) Abland - disturbing activity , regardless of size , that the city determines is likely to cause an adverse impact to an environmentally sensitive area or other property . ( 2 ) Grading, erosion and sediment control plan design standards . Grading , erosion and sediment control plans must comply with the following criteria : ( a ) ZI oAll site erosion and sediment control practices shall be consistent with Minnesota Pollution Control Agency document " Protecting water Quality in Urban Areas ( 1994 ) as amended and Citv of Lin Lakes General Specifications and Standard Detail Plates for Street and Utility Construction lgn , al ci ,. 1fin _ as amended . ( b ) Natural site topography and soil conditions must be specifically addressed to reduce erosion and sedimentation during construction and after project completion ; ,� orlimonf nn _ � ifo • The project must be phased as best as possible to minimize disturbed areas and removal of existing vegetation until necessary for project progress ; 11 ke4 ( d )..The city may require additional erosion and sediment control measures on areas with a continuous slope leading to a sensitive , impaired or special water body , stream , ditch or wetland to assure retention of sediment on site ; V i m%OF % J h iffnamO rim_ 04Le The plan must include conditions adequate to protect facilities to be used for post- construction stormwater infiltration ; fri lnk !Q ind on , iinrmonf Qi in teak aWIX rrt ' naes ; . natfnnf 4M. Protection shall be provided to minimize disturbance to surrounding soils , root systems and trunks of trees adjacent to site activity that are intended to be left standing . Compaction of site soils shall be minimized . R4LLAII imported materials shall be approved by the City Engineer prior to placement on the site . Ofil.Appropriate on - site containment must be provided for all trash , solid waste , construction debris , floating debris , and hazardous materials . Disposal of collected sediment shall be deposited only in approved locations . ( 3 ) Grading, erosion and sediment control (ESC) required exhibits . The plan shall be prepared and signed by a duly licensed professional engineer in the State of Minnesota . The following exhibits must accompany the permit application : two plan sets , full size ( 22 inches by 34 inches ) ; and one electronic copy in a . pdf format . one All plan sets shall also be submitted electronically in a . dwg format or as otherwise determined by the City Engineer . The minimum requirements of the grading , erosion , and sediment control plan shall be consistent with the most recent version of the NPDES permit requirements and include the following information : . ( a ) Project name ' , ' or-e�li��} and location , IM Drnionf Inn � R9l 1 _ { 4ft Address , cCounty parcel identification number kand legal description of the p ropggty4 ; 12 Names and addresses of the record owner , developer , land surveyor , engineer , designer of the plat , and any agents , contractors , and subcontractors who will be responsible for project implementation , including the name , address and phone number of the party responsible for maintenance of all erosion and sediment control measures ; kokOLTabulation of construction implementation schedule , including : estimated start date , time frames , and schedules for each construction phase , and completion date ; kf)Leh. Coples of permits or permit applications required by any other government entity or agencies including mitigation measures required as a result of any review for the project ( e . g . , wetland mitigation , EAW , EIS , archaeology survey ) ; (g4ff). Exlsting conditions map . An existing topographic site map , drawn to a legible scale and clearly labeled with a north arrow and date of preparation . The plan , based on a certificate of survey , shall include the following information : 1 . Property lines and lot dimensions ; 2 . Existing zoning classifications for land within and abutting the development , including shoreland , floodway , floodway fringe , or general floodplain , and other natural resource overlay districts ; 3 . All buildings and outdoor uses including all dimensions and setbacks ; 4 . All public and private roads , interior roads , driveways and parking lots ; 5 . Show ordinary high � Vag-, -water levels of all navigable waters , 100 year critical flood duration event elevations , and delineated wetland boundaries , if any . If not available , appropriate flood zone determination or wetland delineation , or both , may be required at the applicant ' s expense ; 6 . Identify all special waters and impaired waters , as identified in the most recent listing by the MPCA , within one mile of the project that receive runoff from the project ; 7 . Location of drainage areas , existing storm sewer facilities , including pipes , manholes , catch basins , ponds , swales and drainage channels within 100 feet of the subject property . Existing pipe sizes , grades , rim and invert elevations , and normal and high water elevations must be included ; 8 . Existing contours at one foot intervals , shown as dashed lines for the subject property and extending 100 feet beyond the outside boundary of the proposed plat ; 9 . Location of any Ssteep slopes where areas have an average slope of more than 12 % over a distance of at least 50 feet , or bluff areas as defined in the wherela-ndShoreland ordinance , whichever is applicable ; and 10 . Location of Wwooded areas , high quality native plant communities , or other officially designated natural resource areas . NLg). Proposed conditions map . 13 1 . Maps identifying areas discussed in ( 3 ) (9. 1 . through (g. 10 . of this section . 2 . Location , size , and approximate grade of proposed public sewer and water mains . 3 . Elevations , sections , profiles , and details as needed to describe all natural and artificial features of the project . 4 . Proposed grade contours at one -foot intervals shown as solid lines . 5 . An estimate of the total volume ( cubic yards ) of materials proposed to be imported to or exported from the site . 6 . Provisions for groundwater management ( dewatering ) , including subsurface drains , disposals , ponding and flood controls . 7 . Spot elevations at drainage break points and directional arrows indicating site swale and lot drainage . 8 . Proposed lot lines , lot and block numbers , building style , building pad location and elevations at the lowest floor and garage slab , if applicable , for each lot . 9 . Locations , sizes , grades , rim and invert elevations of all proposed stormwater facilities , including ponds , proposed to serve the subject property . 10 . The location of all oversize , non -typical easements including conservation easements , if applicable . 11 . Show the boundary of the 100 -year flood elevations of all waterbodies . 12 . Locations of all stormwater management practices , infiltration areas , and areas not to be disturbed during construction . 13 . Normal water level , high water level , and emergency overflow elevations for the site and all associated ponding systems . 14 . Location of areas where construction will be phased to minimize duration of exposed soil areas . Include map and calculations as necessary of areas of grubbing , clearing , tree removal , grading , excavation , fill , and other disturbance ; areas of soil or earth material storage ; quantities of soil or earth material to be removed , placed , stored , or otherwise moved on site , and delineated limits of disturbance . 15 . Location and type of all temporary and permanent erosion prevention , sediment control , stormwater runoff , and soil stabilization BMPs , along with procedures to be used to establish additional temporary BMPs as necessary for the site conditions during construction . Standard plates and /or specifications for the BMP's used on the project must be included in the final plans and specifications for the project . Location and design of temporary sediment basins where ten acres or more (five acres or more for special or impaired waters ) are disturbed and drained to a single point . When site restrictions do not allow for a temporary sediment basin or less than the required acreage is being developed , temporary sediment basins where appropriate are encouraged , but not required in areas with steep slopes or highly erodible soils or to 14 take equivalent measures such as smaller basins , check dams , and vegetated buffer strips . 16 . Methods to be used for final stabilization of all exposed soil areas . 17 . Documentation that the project applicant has applied for the NPDES permit from the Minnesota Pollution Control Agency ( MPCA ) , when applicable . 18 . A stormwater pollution prevention plan for projects that require an NPDES permit . ( 4 ) Construction activity requirements . Any activity subject to a permit under this chapter must conform to the standards of the NPDES general permit regarding construction - site erosion and sediment control . ( 5 ) Inspections . ( See also § 1101 . 011 . ) ( a ) The applicant shall be responsible for inspection , maintenance and effectiveness of all erosion and sediment control measures until final soil stabilization is achieved . ( b ) The city may inspect the project site and require the applicant to provide additional erosion control measures as it determined conditions warrant . ( 6 ) Final stabilization . ( a ) Erosion and sediment control measures must be maintained until final vegetation and ground cover is established to a density of 70 % over the entire pervious surface area . ( b ) All temporary erosion and sediment control BMPs will be removed , by owner , after all disturbed areas have been permanently stabilized . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) § 1011 . 011 STORMWATER MANAGEMENT REQUIREMENTS . ( 1 ) Stormwater management. Apermit incorporating an approved stormwater management plan shall be required for all proposed land development activity including public linear projects , unless otherwise exempted in this chapter , which meets any or all of the following : ( a ) A development , redevelopment or reconstruction , except public linear projects , that creates or reconstructs 10 , 000 square feet or more of impervious surface , including smaller individual sites that are part of a common plan of development that may be constructed at different times . ( b ) A subdivision of an area exceeding one acre . This includes subdivision for single - family residential , multi - unit residential , commercial , industrial , or institutional development . ( c ) For public linear projects , a permit is required when one or more acres of impervious surface will be to- created or reconstructed 11070000 15 rein , EZ , fanp-through multiple phases or connected actions of a single project , as defined by the city . WkqLAny bland - disturbing activity , regardless of size , that the city determines would otherwise cause an adverse impact to an environmentally sensitive area or other property including areas within floodplain and shoreland districts . ( 2 ) Exceptions k ( a.) A permit is not required for single family residential construction on an individual lot of record , if the proposed impervious surface of the lot is less than 101000 square feet , excluding the d y.rivewaStormwater management requirements do not apply to development of an individual lot within a residential subdivision if it conforms to an approved development plan . {-g)LLStormwater management requirements do not apply to sidewalks and trails ten feet wide or less that are bordered down - gradient by vegetated open space or vegetated filter strip with a minimum width of five feet hn , n ,o " or tho mr ::% rlinrr � ornsinn � nrl .%vR.orlimonfIL W %mAl ILI rorr � � iromonf � pro Mill offon� iLI V G, . � . Stormwater management requirements do not apply to bridge spans , mill , reclamation and overlay projects tl%ale peSe unde. 0, 1inC Qnilc . ( d ) Stormwater Management Requirements do not applysingle family residential subdivisions creating seven or fewer lots that . 1 . Establish no new public roadway ; and 2 . Includes no private roadway/driveway serving three or more lots { 24Stormwater management performance standards . ci + o nl � n % f'n � r new + nrm1nia + r n , iali c o fit mananemcinf0 stormwater management plan shall be submitted with the permit application for a project equaling or exceeding the threshold of Section 1011 . 011 ( 1 ) . The plan shall be designed honor-: 1 nnliall nn Qfnrm1ninte -ri inn r3f+a� S to reduce the impacts of development by maintaining predevelopment hydrological conditions in the following ways : ( a ) Use of natural topography. The applicant shall incorporate the use of natural topography and land cover such as natural swales and depressions as they exist before development to the degree that they can accommodate the additional flow of water without compromising the integrity or quality of the receiving waterbody . Minimize impact to natural features . The development shall minimize i( b ) mpact to significant natural features . Applicant shall review the site for natural features protected under city , state or � �-federal requirements , including steep slopes , wetlands , wooded areas , endangered or threatened species, or species of concern 16 habitat , areas designated by the county biological survey , greenways , parks and open space , groundwater recharge areas , wellhead or surface water protection areas or regional stormwater pond locations . ( c ) Conveyance system . Wherever possible untreated and treated stormwater runoff shall be conveyed in facilities open to the atmosphere ( e . g . swales , vegetated buffer strips , energy - dissipating structures , and the like ) rather than through enclosed pipes , so as to decrease runoff velocity , allow for natural infiltration , allow suspended sediment particles to settle , and to remove pollutants . ( d ) Proposed development design shall: 1 . Maintain or decrease runoff volume , where practicable as determined by the City Engineer ; 2 . Decrease erosion and sedimentation , 3 . Maintain or decrease flow frequency , duration , and peak runoff rates ; 4 . Increase infiltration ( groundwater recharge ) or filtration ; 5 . Maintain existing flow patterns ; 6 . Reduce time to peak flows by increasing the time of concentration to and through storm sewers ; 7 . Provide storage of stormwater runoff on site ; 8 . Avoid channel erosion ; 9 . The proposed project must not adversely affect water level off the site during or after construction ; and 10 . The proposed activity may not reduce hydraulic efficiency of the drainage ways at any point up - gradient of the applicant ' s parcel boundary . a-8-: 11 . A combination of Stormwater BMPs may be used to meet the requirements of section ( s ) 6 , 7 , or 8 ( e ) Landlocked basins . A landlocked basin may be provided an outlet only if it : 1 . Retains a hydrologic regime that complies with the requirements of the local governmental unit ( LGU ) responsible for administration of the Wetland Conservation Act (WCA ) ; 2 . Provides sufficient dead storage volume to retain back to back 100 -year , 24 - hour rainfalls and runoff ; and 3 . Does not create adverse downstream flooding or water quality conditions as a result of increased discharge rate or volume , or other factors . ( f) All plans shall be consistent with National Pollutant Discharge Elimination permit ( NPDES ) requirements , the Lino Lakes engineering design standards , the Lino Lakes stormwater design standards , and the filing or approval requirements of Rice Creek Watershed District , Vadnais Lakes Watershed Management Organization , Anoka County , Minnesota Department of Natural Resources , Minnesota Department of 17 Transportation , Minnesota Pollution Control Agency , U . S . Army Corps of Engineers , State of Minnesota Stormwater Manual or other regulatory agencies . {-3) 4LStormwater management plan modeling requirements . The City adopts by reference RCWD Rule C4 . Modeling for Stormwater Management Plans , as amended. zj inrli irJo r�lironfly � i r+ nnnor+fo �-1 imr� orin u S jQI IrfAaAnQ n111dinlinoQ .. ifo areas nnf nn � ioro� i-m � � i ' rfono : Tnhle 1 C11r� in r� i lmhor� fir � � � o � � iifh nerva us areas f9 Pn5zf - Cnn5zfr1 D , ineff C lip fe I I %A agI W � � + �� 11 i ff n R11nn ci � p hI mhor* N , lm or IN ndif, � nicf , irhznd A � 4� B 74 74 74 Rn. An An (` LA, AVe nUrmhom from I ICr10 _ nlD (` 2 TonhniaAl Dolonco * * Mao Crook AM:itorQhod D "!Qfrinf 9Ol 2 R , 11oiz . ) fnr thin hAfn > > > > 18 OGGLIFIE3 ( CFNIM1 ESANnt `LG% A It 00 floWir afl, areas. , . I ,n, ,. n, , eer M 1r%wo %j %A11 %oP 16AI I %sA1j %moF1 %J %mdfl 7 {44 (. Water quality treatment. The City Adopts by reference RCWD Rule C6 . Water Quality Treatment as amended . � 1lhconllon + ro ii � innQ ) linonr nrnioat io 1 E d �+ orm r�ino nS fn11n1 ���� hlo 71 : . 9aii fin 0 QQR D nckQ1 r�Minfor Trenfonf AIM , mo Blow 5 I Cl XInr " nfickn CA In. , lint " tnfil + rn + inn ,I I I#+I L I LA L.I, %mA „I I, . 'I ' �+��� } n /n + or Po , , Irr� iinL jS Qi irf4ap rf g1 * 1 '1 rin1 / '1 7 in . . . . r of L - - - J . L . . . J . iTrff g �� �� Imnopiioi � s Q , Irfnno rf+ 71 * 1 - 1 1in1 / rA Ifir— %mo _. . . _. _ — L - - - J - L - - - J %W �'? r i � d-8r. Imn o Q , irfnn rf+ � 1 * '1 1 rin1 / MI + tnr � n � n * �1 rin / %0 1 US c rf n r+ o rf+ 71 * 1 1 rin 1 / In /o + Innr1 � �n /1 n * '1 '� rin /ffll .I %wO a-I Ia.g,a►� Av %wo _ RfnMM a W�-n}d jzi irfnno rf+ g1 * 't rin1 / ` ' ' J - _ - L - - - J - Dn d n n * 17 rin /f l 1mnoWInl jS rfnaen rf+ 71 * '1 1 rinl / t n 19 prInio%wo %amP L %=O i � rrloformirnorl � � fnlln � niW . 0 /"1 1 I + e _ 14 %A a- %-�4/%� -� �-I I L P1%M� e -{ i n-} � - Imo} Troifmonf Ror+o P nnSfr1 info v�e �a %�R L A I e 1e Li S AAl::ifr% r%zhAnd inn Vim - - - . _ . %mor %w4 ILArr . . _ 0 " . _ . rr � r» nif� i or m nnnfai afo ryrn � 1nci IAt ::i � q f• inns in Tnhli . p%wof +C41 for hnf % r� n� � L NJ /ohialo f lolinrr n id m � infonanr+ o -u r-r�r,-r�rrrT aFeaS. nlni normo c nhilify gznilQ ru (, r-I C nn - - = -- • - LmwPo%mmO %Arlrnr+ I % VVILI All� niifhin three ) iorfin � l foo ♦ of Rin = nnnl hi�nrhl nvvu-cLT � hlo lniifm ll A fhroo wpr` in � l foof of hnffnm of infilfmfinnn area 20 \ /1Whinrainfil �L I n%A mere fhnn �2 . `Z innhQQ rear � �hnr I nnrJ I Ira l imi � my ions 11TA NAA j %w4r� onf \ AIoII � PhAD nrn � iirla an i � i lia� n � n � nnff vnl � � ma rarl � lati k54&LPeak stormwater runoff control. The City adopts by reference RCWD Rule C7 . Peak Stormwater Runoff Control as amended . fren , ianaw ayenfs WPM 1 *� n r! D i � , IF IF Who Ila 1 im 11 � $ $ 91 merind fnr 7 _ ve _.,.� ia ' r n n r1 I n _� * = w %0 Winhi c & ��IlM�i I E rim fIZI � 1- 1 1 V I$d er-atom JV�?ttil� Ln �i I I ZI n %%j Ci Icr+ awo r,WA fihla t dway days ZsGEno I-Use �- ft ln %TL Inf7-iTL =llTJtiTInTT = 1rx 1 %00 t n 2 � 'S�{� �►ttalle . . 7 , , QanQnnni fInnnorlarl Utntar hn � in � • , , iatl manrin1A1Q nnrl chnllnlni and HiQinn mnr-czhes . 21 n � � rnlo Inn � o � � rifo thin w �Ad �- {-649). Design criteria . Best Management Practices shall be designed in accordance with the following standards : ( a ) Infiltration BMPs . lnfil + r::i f' nn PhADQ m , mt ho dinQ1ryndnd + n nrnwHinIIIIIILI %A : The City adopts by reference RCWD Rules C . 9 . ( a ) as amended . ho nrim � r� i infilfmfinn � rn � * T�nhIn Az !!Zni� fffmii� n Ignipc _ ��i�c ��►$ fines TAM n fi ► re _ - - - * * ��n WOO I LA tt;t �7W I %I I =ad �miicnlc �c�l�l-dy ' �� I%A v lznTET ��a �$r �,�� n-If e Fm MrAliczlcz g � nrlxi ��� s;{ cs ci I� e �s nr � a }�m S % nrf r�rrr, � %woAI 22 � nrm s anrdS ryrr, � ioll � i i� � t�, -rn-r�-� �1 l�� I czIt ilf�� i rrr � � iolly �ef a. nq tWt�t t a/1 i r+ n Ge n L I � N7 ci siIts „ n1r+ , nin RAndy iVt-LZ Cilf � A mI find saneds Silky ow 17 \ / ink \ / find sanciQ A %MA k47 b I zAnrdii ryrr vc� l � ��rivoji jZrnrdxi '�tt� C VV r► 1AC161W J A I Ly nlnim Q ::Inrdy 8 I ZI %�Ol l 1+ W %a I I Ls r -� mR InUl .�, 1--1 i ry h I v p I n c #G alays and IZ7T�T �g � rn i rn Q i I + 6 23 11nAnclon 11 7 7 7 f . \ / l ilnomhlo \ A / ollho ::irJ Qrnfontinn Aroas ( b ) Water reuse . The City adopts by reference RCWD Rules C . 9 . ( b ) as amended . � � / � + or roe � � o Qh4Djz mi iQt ho rloizionpH + n r, rnvirlo . nrnsc aro ( � l • 7 7 7 VAnnM of mnnij %nrinrr rAnnnrd . ( c ) Biofiltration and filtration BMPs . The City adopts by reference RCWD Rules C . 9 . ( c ) as amended . fh_a nr1m ::1r% 1 hinfil � finn areal. Qi iIWA rf� r+ o nr i% h - %QWF irf *nno #iafi irinQ r i � ioly ' 7 7 nr�-ra ' n fiIo f�Qimom ' nnr�l 7 ( d ) Storm water ponds . The City adopts by reference MW RCWD Rules C . 9 . ( d ) as amended . NICF7 e ) Soil Borings . The City adopts by reference MM RCWD Rules C . 9 . ( e ) as amended . " I 24 ndc fnr. ::if leastthe - one -lip : rstorn4_ frory , uonr+w o ionfiz fn oyiefinrr nc» k r1 innff czifoiz • � nrl %fit t a-In -+ ho '1 tln _ yeaF nri in1l Sfnrm o " ont The City adopts by reference RCWD Rules C . 9 . (D as amended . #)Lqh. Freeboard requirements . All new residential , commercial , industrial and other habitable or non - habitable structures , and all stormwater basins , must be constructed so that the lowest floor and lowest entry elevations of structures comply with ��IIn, ^ , inn . Table 1 . Table 1 . Low floor and low entry freeboard requirements Regional Local Detention Infiltration Basins Rain Groundwater) Flood Basins & Gardens Elevations Wetlands Elevation 100 year EOF 100 EOF Bottom 100 EOF EOF Seasonal High year year Level Low Floor 2 - RTI . 1 -ft O -ft N /A O - ft N /A N /A N /A 4 -ft Freeboard Low Entry N /A N /A 2 - ft 1 -ft N /A 2 -ft 1 -ft 0 . 5 -ft N /A Freeboard The seasonal high Rroundwater level shall be determined within 12 months of proposed construction of the structure by a soil scientist or geotechnical engineer registered in the State of Minnesota as indicated by redoximorphic features such as mottling within the soil or by direct groundwater observation . O)L I.Within a landlocked basin , lowest floor elevations must be at least one foot above the surveyed basin overflow elevation . Where a structure is proposed below the runoff elevation of a land - locked basin , the low_floor elevation will be a minimum of two feet above the high water level as determined from an estimate of high water levels determined from the highest of either the 100 - year , ten - day runoff event or back -to - back 100 -year , 24 - hour rainfalls . Aerial photos , vegetation , soils , and topography will be used to derive a " normal " water elevation for the basin for the purpose of computing the 100 year elevation . 25 94 ( 8 ). Drainage and utility easements . ( a ) If a stormwater management plan involves direction of some or all runoff off of the site , it shall be the responsibility of the applicant to obtain from adjacent property owners any necessary easements or other property interests concerning flowage of water . ( b ) Easements are required for all stormwater management facilities , stormwater conveyances and on - site floodplain and shall extend a minimum of ten feet beyond the basin ' s normal water level or the 100 - year storm high water level elevation , whichever is greater . ( c ) Easements are required for all outlet swales and ditches , and for overland overflow routes located downstream of basins located on site . ( d ) If the storm sewer is to be installed less than ten feet deep within private property , the easement shall be a minimum of 20 feet wide . If the storm sewer is ten feet or greater , the easement shall be twice as wide as the depth . ( e ) Easements necessary for maintenance vehicle access are required for all of the above where not directly available on a public road . ( 9 ) Wetlands . Runoff shall not be routed directly to wetlands without first passing _ through an appropriate settling or approved pre - treatment basin . Said basins must meet standards for volume and flow directed to the basin . ( a ) A protective buffer strip of natural vegetation shall surround all wetlands as follows : 1 . Where RCWD is the Local Government Unit ( LGU ) for administration of the Minnesota Wetland Conservation Act (WCA) the City adopts RCWD Rule F . 6 . ( e ) , as amended . Wetlands not subject to RCWD Rule F . 6 . ( e ) shall have a minimum buffer width of 10 ' . 2 . Where Vadnais Lakes Area Water Management Organization (VLAWMO ) is the LGU for administration of WCA , the City adopts VLAWMO Water Quality Standards Section 11 , as amended . ( b) Wetlands must not be drained , filled , or altered , wholly or partially , unless in compliance with and permitted under the most current rules adopted by the Minnesota Board of Water and Soil Resources in the Wetland Conservation Act (WCA ) . Wetland replacement must be guided by the following principles in descending order : 1 . Avoidance . 2 . Minimization . 3 . Mitigation . ( c ) Permits to work in wetlands must be obtained from the local water management organizations , acting as local governmental units ( LGU ) , with respective jurisdiction with the City of Lino Lakes to administer the WCA . 26 ( d ) Permanent boundary markers , in the form of signaqe approved by the City of Lino lakes , should be installed prior to final approval of the required clearing and grading plan . ( 10 ) Comprehensive Stormwater Management PIan . The City of Lino Lakes may develop a comprehensive stormwater management plan ( CSMP ) as an alternative way to meet the stormwater requirements of the local watershed agencies for development within a defined area and a common resource of concern ( ROC ) . The CSMP will be submitted to the applicable watershed district for review and must comply with the requirements of the watershed district . The following Comprehensive Stormwater Management Plans are adopted and in effect : ( a ) Legacy at Woods Edge Development ( LWED ) CSMP (August 2016 ) : The LWED is defined as that area within the City of Lino Lakes bounded by I - 35W to the north , Town Center Parkway to the south , and Lake Drive to the west . The following LWED CSMP policies and regulations supersede portions of Sections 1011 . 011 within the LWED as follows : 1 . Subpart ( 5 ) Water Quality Treatment and Subpart ( 6 ) Peak Stormwater Runoff Control : Private development shall not exceed the impervious areas listed in Appendix E of the LWED CSMP . If developers choose to exceed the impervious limits , equired to address any additi they will be r onal stormwater requirements within that parcel at their own expense and demonstrate how the additional runoff will be treated to meet the applicable Rice Creek Watershed District rules . Any such best management practices ( BMPs ) will be considered private and be maintained by the owner/developer of the parcel . ( b ) Northeast Lino Lakes Drainage Area ( NEDA) CSMP ( September 2018 ) : The NEDA is defined as that area within the City of Lino Lakes bounded by Main Street to the south , the City of Hugo to the east , Lake Peltier to the west and Rehbein Street to the north . The following NEDA CSMP policies and regulations supersede portions of Section 1011 . 011 with the NEDA as follows : 1 . Subpart ( 5 ) . Water Quality Treatment : Water quality treatment requirements shall be met through a variety of measures as is feasible on a regional or O development- by - development basis . On site infiltration is not feasible for most of the NEDA due to poor soils , high groundwater and the presence of wetlands . As development proceeds within the NEDA , developers shall be required to demonstrate that infiltration is not feasible on - site before utilizing any regional basins or other BMP alternatives . 2 . Subpart ( 6 ) . Peak Stormwater Runoff Control : Private development shall be restricted to an allowable flow rate of 0 . 1 cubic feet per second ( cfs ) per acre for the 100 - year , 24 - hour peak discharge rate . This will result in a maximum peak discharge rate from the NEDA into Peltier Lake of no more than 135 cfs . This restriction may be met through a combination of rate control practices on a regional or development- by . development basis . 27 Stormwater management plan required exhibits . The stormwater management plan shall be prepared and signed by a duly licensed engineer in the State of Minnesota . The following exhibits must accompany the permit application : two plan sets , full size ( 22 inches by 34 inches ) ; and one electronic cop in a . pdf ^ no nI � n � o + , format . All plan sets shall also be submitted electronically in a . dwg format or as otherwise determined by the City Engineer . Tho minims arm i �fnrnma ' n r� rvi iiromnn + c of +� ( a ) A grading , erosion and sediment control plan and , for projects that require a NPDES permit , a stormwater pollution prevention plan ( SWPPP ) i � riQn iirorl ( b ) Stormwater management plan including existing and proposed hydrologic calculations for total runoff volume and peak discharge rates as described in this chapter , including : 1 . A narrative including a project description , discussion of BMP selection , incorporation of infiltration BMPs , and revegetation plan for the project site ; 2 . Delineation of all drainage areas , including contributing runoff from off- site areas , proposed and existing subwatersheds on - site , emergency overflows , and drainage ways ; 3 . Existing , proposed , and total amount of impervious surfaces created by the project ; 4 . Existing and proposed runoff curve numbers ; 5 . Time of concentration used in calculations ; and 6 . Existing and proposed total runoff volume and peak discharge rates for the two - , ten - , and 100 - year critical events utilizing NOAA Atlas 14 . ( c ) Property of lines and delineation of lands under ownership of the applicant . ( d ) Locations of all stormwater management practices , infiltration areas , and areas not to be disturbed during construction . ( e ) Location of all drain tiles on the project site shall be identified . ( f) Location and engineered designs for structural stormwater management practices including stormwater treatment devices that remove oil and floatable material ( e . g . , basin outlets with submerged inlets ) . ( g ) Normal water level , high water level , and emergency overflow elevations for the site and all ponding systems related to NAVD88 . ( h ) Identification of existing and proposed one - foot contour elevations within the project site related to NAVD88 . ( 1 ) Geotechnical analysis including soil borings at all proposed stormwater management facility locations ASTM D5921 and D2488 . 28 (j ) Provisions for groundwater management ( dewatering ) , including subsurface drains , disposals , ponding and flood controls . ( k ) Completed c4ty- Rice Creek Watershed District worksheet explaining better site design techniques that were evaluated during project design , the results of the evaluation of each and for any techniques deemed infeasible . ( I ) Along -term maintenance plan and schedule for all permanent stormwater practices , along with the identity of the party responsible for the maintenance of the project . The maintenance responsibility must be memorialized in a document executed by the property owner in a form acceptable to the city and filed for record on the deed . ( m ) Before work is deemed complete , as - built plans must be submitted demonstrating that at the time of final stabilization , stormwater facilities conform to design specifications . ( n ) Other project site - specific submittal requirements as may be required by the city . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) § 1011 . 012 INSPECTIONS AND MAINTENANCE . ( 1 ) Inspections . The applicant is responsible for inspections and record keeping in accordance with the NPDES permit requirements . The city shall conduct inspections on a regular basis to ensure that both stormwater and erosion and sediment control measures are properly installed and maintained prior to construction , during construction , and at the completion of the project . In all cases the inspectors will attempt to work with the applicant or developer to maintain proper stormwater management . Mandatory inspections , conducted by the city , are required as follows : ( a ) Before any land - disturbing activity begins ; ( b ) Five working days after footing inspections ; ( c ) At the completion of the project ; and ( d ) Prior to the release of financial securities . ( 2 ) Post- construction inspection and maintenance of stormwater facilities . ( a ) Private stormwater facilities . No private stormwater facility may be approved unless a maintenance agreement is provided that defines who will conduct maintenance , the type of maintenance , and the maintenance intervals . All private stormwater facilities shall be inspected by the owner and maintained in proper condition consistent with the performance standards for which they were originally designed . 1 . Facility access . Access to all stormwater facilities must be inspected annually and maintained as necessary . It shall be the responsibility of the applicant to obtain any necessary easements or other property interests to allow access to the facilities for inspection or maintenance for both the responsible party and the city . 29 2 . Maintenance . All settled materials from ponds , sumps , grit chambers , and other devices , including settled solids , shall be removed and properly disposed of once capacity is reduced by 30 % . 3 . Inspection . All private stormwater facilities must submit an as - built record plan of the facility and must provide documentation to the city of an inspection during construction , during the first year of operation , and at least once every five years thereafter . Private facilities are subject to city inspection at any time to ensure compliance . ( b ) Public stormwater facilities . 1 . Acceptance of publicly owned facilities . Before work under the permit is deemed complete , as - builts and certification must be submitted demonstrating at the time of final stabilization that the stormwater facilities conform to design specifications . A final inspection shall be required before the city accepts ownership of the stormwater facilities . 2 . Inventory of stormwater facilities . The city shall inventory and maintain a database for all public stormwater facilities within the city requiring maintenance to ensure compliance with this chapter . ( 3 ) Maintenance . The city shall perform maintenance of publicly owned stormwater facilities within the city as provided for in the local surface water management plan . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) 1011 . 013 PLAN REVIEW PROCEDURE . Plan review. The applicant shall not commence any construction activity subject to this chapter until the stormwater management plan and /or the grading , erosion and sediment control plan have been approved by the city . The submittal shall be processed in accordance with : - Ch . 1007 . 020 of city code as applicable & 9 ^ f + ho 7nnino nrrlir r� r+» in nr Ch Inl 1 of W AL r+ n %lo � Q %A PP in � hlo . City approval is contingent on issuance of all other permits required by the city or other agencies having jurisdiction on the project . The following standards shall apply to all developments within the city : ( 1 ) Plan approval. If the city determines that the stormwater management plan and /or the grading , erosion and sediment control plan meets the requirements of this chapter , the city shall issue a plan approval valid for a specified period of time that authorizes the land disturbance activity contingent on the implementation and completion of this plan . ( 2 ) Plan denial. If the city determines that the plan does not meet the requirements of this chapter , the city shall not issue plan approval for the land disturbance activity . This plan must be resubmitted for approval before the land disturbance activity begins . All land use and building permits shall be suspended until the developer has an approved ._. cr czfnr- mlArater for ESC or stormwater management . 30 ( 3 ) Modification of plan . The applicant must amend the plan as necessary to include additional requirements such as additional or modified BMPs designed to correct problems identified or address situations whenever : ( a ) A change in design , construction , operation , maintenance , weather , or seasonal conditions that has a significant effect on the discharge or pollutants to surface waters or underground waters ; ( b ) Inspections or investigations indicate the plans are not effective in eliminating or significantly minimizing the discharge or pollutants to surface waters or underground waters or that the discharges are causing water quality degradation ; ( c ) The plan is not achieving the general objectives of minimizing pollutants in stormwater discharges associated with construction activity ; or ( d ) The plan is not consistent with the terms and conditions of this chapter . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) 1011 . 014 FINANCIAL SECURITIES . The applicant shall be subject to the financial security provisions of the city development agreement , site improvement performance agreement and /or the city public improvement financing policy , as applicable . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) 1011 . 015 ENFORCEMENT . ( 1 ) Notification of failure of the permit. The city shall notify the permit holder of the failure of the permit ' s measures . ( a ) Initial contact. The initial contact will be to the party or parties listed on the application and /or the SWPPP as contacts . Except during an emergency action , 48 hours after notification by the city or 72 hours after the failure of erosion and sediment control measures , whichever is less , the city at its discretion may begin corrective work . Such notification should be in writing , but if it is verbal , a written notification should follow as quickly as practical . If after making a good faith effort to notify the responsible party or parties , the city has been unable to establish contact , the city may proceed with corrective work . There are conditions when time is of the essence in controlling erosion . During such a condition , the city may take immediate action and then notify the applicant as soon as possible . ( b ) Emergency action . If circumstances exist such that non - compliance with this chapter poses an immediate danger to the public health , safety and welfare , as determined by the city , the city may take emergency preventative action . The city shall also take every reasonable action possible to contact and direct the applicant to take any necessary action . Any cost to the city may be recovered from the applicant ' s financial security . 31 ( c ) Erosion off site . If erosion breaches the perimeter of the site , the applicant shall clean up and repair or supplement with functional BMPs within 24 hours of discovery or immediately as conditions allow . If , in the discretion of the city , the permit holder does not repair the damage caused by the erosion , the city may do the remedial work required and charge the cost to the applicant . When restoration to wetlands and other resources are required , the applicant shall be required to work with the appropriate agency to ensure that the work is done properly . ( d ) Erosion into streets, wetlands, or water bodies . If eroded soils ( including tracked soils from construction activities ) enter or appear likely to enter streets , wetlands , or other water bodies , cleanup and repair shall be immediate . The applicant shall provide all traffic control and flagging required to protect the traveling public during the cleanup operations . ( e ) Failure to do corrective work. When an applicant fails to conform to any provision of this pe► rvy cha tamer- within the time stipulated , the city may take the following actions : .-. . . ...... 1 . Issue a stop work order , withhold the scheduling of inspections , and /or the issuance of a certificate of occupancy . 2 . Revoke any permit issued by the city to the applicant for the site in question or any other of the applicant ' s sites within the city ' s jurisdiction . 3 . Correct the deficiency or hire a contractor to correct the deficiency . 4 . Require reimbursement to the city for all costs incurred in correcting stormwater pollution control deficiencies . If payment is not made within 30 days after costs are incurredby the city , payment will be made from the applicant ' s financial securities as described above . 5 . If there is an insufficient financial amount in the applicant ' s financial securities as described above , then the city may assess the remaining amount against the property . As a condition of the permit , the owner shall waive notice of any assessment hearing to be conducted by the city , concur that the benefit to the property exceeds the amount of the proposed assessment , and waive all rights by virtue of M . S . § 429 . 081 to challenge the amount or validity of assessment . ( 2 ) Enforcement. The city shall be responsible for enforcing this chapter . ( a ) Penalties . Any person , firm , or corporation failing to comply with or violating any of these regulations shall be deemed guilty of a misdemeanor and be subject to a fine or imprisonment or both . All land use and building permits shall be suspended until the applicant has corrected the violation . Each day that a separate violation exists shall constitute a separate offense . ( b ) Bight- of- entry and inspection ; powers . The issuance of a permit constitutes a right- of- entry for the city or its contractor to enter upon the construction site . The applicant shall allow the city and their authorized representatives , upon presentation of credentials , to : 1 . Enter upon the permitted site for the purpose of obtaining information , examination of records , conducting investigations or surveys ; 32 2 . Bring such equipment upon the permitted site as is necessary to conduct such surveys and investigations ; 3 . Examine and copy any books , papers , records , or memoranda pertaining to activities or records required to be kept under the terms and conditions of the permitted site ; 4 . Inspect the stormwater pollution control measures ; and 5 . Sample and monitor any items or activities pertaining to stormwater pollution control measures ; 6 . Correcting deficiencies in stormwater and erosion and sediment control measures . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) § 1011 . 016 ABROGATION AND GREATER RESTRICTIONS . In the event of any conflict between the provisions of this chapter and the provisions of any other city ordinance adopted by the City Council , the more restrictive standard prevails . ( Ord . 09 - 15 , passed 10 - 26 - 2015 ) Section 2 . Effective Date . This ordinance shall be in force and effect from and after its passage and publication according to the Lino Lakes City Charter . Adopted by the Lino Lakes City Council this 9th day of January , 2023 . The motion for the adoption of the foregoing ordinance was introduced by Councilmember 5�4: and was duly seconded by Councilmember yt gnand upon vote being taken thereon , the following voted in favor thereof: R A h I of , CCkVeqV) Ra eriy The following voted against same : ont to t Ro R erty , Mayor ATTEST : No Hannah Lynch , City Clerk 33