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HomeMy WebLinkAbout2000-01-06_AgendaPacket~MIQ~]/QC~C~MM L ~1~ OG°~GQ~10~/~~DOO ~ MEETING AGENDA January 6, 2000 5:00 p.m. Roseville City Hall Public Works Conference Room A) B) C) D) ORGANIZATIONAL ITEMS None CORRESPONDENCE & GENERAL INFORMATION B-1 Correspondence received since the November 18, 1999 meeting --None B-2 Correspondence sent since the November 18, 1999 meeting -- None REPORTS C-1 Water Management Planning-Barr Engineering Progress Report Note: Draft teit delivered earlier by e-mail, maps by regular mail. Please call Karl Keel at (651) 490-2220 if you did not receive this information. ADJOURNMENT D-1 Adjournment CITY OF ROSEVILLE 2660 Civic Center Drive, Roseville, Minnesota. 55113 GRASS LAKE WATER MANAGEMENT ORGANIZATION AGENDA ITEM Date: 01/06/00 Prepared by; Karl Keel Item: C-1 r Reports ~'-~ Item Description: Water Management Planning-Barr Engineering Progress Report Earlier, Karen Chandler of Barr Engineering delivered the following draft information to the Board for review: GLWMO 2na Generation Plan Shell - by e-mail Maps for 2°d Generation Plan (4) - by regular mail This information will be reviewed with the Board at the meeting and revised according to Board feedback. Please review this information and bring any comments and/or concerns to the meeting for discussion. GRASS LAKE WATER MANAGEMENT ORGANIZATION AGENDA ITEM Date: 01/06/00 Prepared ~~~ Karl Keel ~, ~., Item: D ADJOURNMENT The meeting adjourned at p.m. RECOMMENDED BOARD ACTION: A motion to close the GLWMO meeting of January 6, 2000 MOVE: AYES: SECOND: NAYS: ~~ rosion o~trol ~uire~euts of uilin~° er~it rift erosion control inspection is required before any framing begins. The intent is to limit dirt tracked into street and washed into adjacent waterways or property. At this erosion control and grading inspection, ail backfilling shall be completed, the site shall be graded to bottom of topsoil elevation, and a gravel pad for driveway from the garage to the street shall be in place. A sift fence or equal shall be installed three (3) feet from the back of curb extending from the side lot lines (extended) to the gravel driveway opening. Additional sift fence shall be erected in site areas as directed by a representative of the engineering departmerrt. Al! fences shall be continuously maintained until such time that turf is established in the yard. Failure to obtain an erosion control and grading inspection approval prior to framing or lack of maintenance of fences will result in a stop- work order. All contractors are required to use the gravel driveway access point instead of driving over the curb. At final inspection, all disturbed areas must be sodded or seeded and mulched. tf dirt enters street, permit holder will be required to remove. Install sih fence along pond boundary or aQOSS swale leaving Pf~tY SILT FENCE --~~ DETAlL -- ,~--,-~~r - - - - ~ --~"~ Pr~ssen,bled t sih fence-- 2.5' ) 2° of sih fence / Drainage ~ ~In DOT ~ fabric set in notefi ~ Pattern ( / sec I 3886] 3' covered by ccvn- ~~ ~ _~ patted badrfiU ~~ _ ~ ~ _ 6°I I I _ , _ ; c . ~ .: '' ~I1 1Ji ~~ , Basernc~t . '. ~ _ 6° crushed lime- . i - _ ~ ~- / str~ne grovel from ~ w. - .; • ~ :,L, ~ street to garage i ~ , ~, ~ .'° ~; • ' placid after ~' . .. ~ - frwndation b~dcfill Sih fence installed ~ - - 1 ~ _ ~ • and bekxe framing seesee detvl~~ ~ ~~~ _. ~ ~'~ ~ . • ... • ~ - -- ~-~ / ~/ - ~, ~ 1~' ~~,,s' . ' . " ...... c .~% 3' from bock od installed o f curb Y~ _ _ •.. _ I have read and understand the Notice of Erosion Control requirements of the building permit and will comply with these requirements. (Print. Name) (Owner/Permit Holder Signature) Date CALL 770-4550 TO SCI-IEDULE EROSION CONTROL AND GRADING INSPECTION PRIOR TO FRANIII'VG. Day Phone Number NOTE: YOU MUST NOTIFY GOPI~R STATE ONE-CALL BEFORE DIGGING-CALL 454-0002 wily Precf,~~tatlon R Cumulative Fregc~enc~ ~rst~l~a~r~or~ ir~r~ea;nolrs/St. Pail (~89~ to 1992) X00 9 30 J `~ U r ~~ U 0 50 0 -~ 0 a~ U 30 0 ~0 0 0,0~ 0,~1 ~ ~0 Precipi~a~ion (inches) State Climatology Office D.N.R. -Division of V~/aters © March, 1993 e LATEST DRAFT CHANGES: 3.012, 4.011, 4.014, 6.7B, 6.lOF, 6.lOG, (Roadside ditches) MINI U VIEW POINTS/GUI AC FOR EVALUATING U A STO A POLLUTION C NTL IACS (This review guidance is presented in the form of a minimum requirements model ordinance.) The City Council ordains: Section 1.0 Purpose The purpose of this ordinance is to control or eliminate storm water pollution along with soil erosion and sedimentation within the city. It establishes standards and specifications for conservation practices and planning activities, which minimize storm water pollution, soil erosion and sedimentation. Section 2.0 Scope Except where a variance is granted, any person, firm, sole proprietorship, partnership, corporation, state agency, or political subdivision proposing a land disturbance activity within the city shall apply to the city for the approval of the storm water pollution control plan. No land shall be disturbed until the plan is approved by the city and conforms to the standards set forth herein. Section 3.0. Definitions For the purposes of this ordinance, the following terms, phrases, words, and their derivatives must have the meaning stated below. When not inconsistent with the context, words used in the present tense include the future tense, words in the plural number include the singular number, and words in the singular number include the plural number. The words "shall" and "must" are always mandatory and not merely directive. 3.010 Applicant Any person or entity that applies for a building permit, subdivision approval, or a permit to allow land disturbing activities. 3.011 Best Management Practices (BMP's) Erosion and sediment control and water quality management practices that are the most effective and practicable means of controlling, preventing, and minimizing degradation of surface water, including construction-phasing, minimizing the length of time soil areas are exposed, prohibitions, and other management practices published by state or designated area-wide planning agencies.. (Examples of BMP's can be found in the current versions of the Minnesota Pollution Control Agency's, "Protecting Water Quality in Urban Areas," and the same agency's "Storm-Water and Wetlands: Planning and Evaluation Guidelines for Addressing Potential Impacts of Urban Storm-Water and Snow- Melt Runoff on Wetlands," the United States Environmental Protection Agency's, "Storm Water Management for Construction Activities: Developing Pollution Prevention Plans and Best Management Practices," (as a reference for BMP's) and the Minnesota Department of Transportation's, "Erosion Control Design Manual.") 3.012 Buffer A vegetated area, including, native trees, shrubs and grassy vegetation, that exist or was established to protect a water of the state. Alteration of such areas is strictly limited. 3.013 Developer A person, firm., corporation, sole proprietorship, partnership, state agency, or political subdivision thereof engaged in a land disturbance activity. 3.014 Discharge The conveyance, channeling, runoff, or drainage, of storm water, including snowmelt, from a construction site. 3.015 Energy Dissipation This refers to methods employed at pipe outlets to prevent erosion. Examples include, but are not limited to; aprons, riprap, splash pads, and gabions that are designed to prevent erosion. 3.016 Erosion Any process that wears away the surface of the land by the action of water, wind, ice, or gravity. Erosion can be accelerated by the activities of people and nature. 3.017 Erosion Control Refers to methods employed to prevent erosion. Examples include soil stabilization practices, horizontal slope grading, temporary or permanent cover, and construction phasing. 3.018 Erosion and Sediment Practice Specifications or Practice The management procedures, techniques, and methods to control soil erosion and sedimentation as officially adopted by the either the city, county or local watershed group, whichever is more stringent. 3.019 Exposed Soil Areas All areas of the construction site where the vegetation (including trees, shrubs, and brush) has been removed. This includes topsoil stockpile areas, borrow areas and disposal areas within the construction site. 3.020 Filter Strips A vegetated section of land designed to treat runoff as overland sheet flow. They may be designed in any natural vegetated form from a grassy meadow to a small forest. Their dense vegetated cover facilitates pollutant removal and infiltration. 3.021 Final Stabilization Means that all soil disturbing activities at the site have been completed, and that a uniform perennial vegetative cover with a density of seventy-five (75) percent of the cover for unpaved areas and areas not covered by permanent structures has been established or equivalent permanent stabilization measures have been employed. 3.022 Hydric Soils Soils that are saturated, flooded, or ponded long enough during the growing season to develop anaerobic conditions in the upper part. 3.023 Hydrophytic Vegetation Macrophytic plant life growing in water, soil or on a substrate that is at least periodically deficient in oxygen as a result of excessive water content. 3.024 Impervious Surface A constructed hard surface that either prevents or retards the entry of water into the soil, and causes water to run off the surface in greater quantities and at an increased rate of flow than existed prior to development. Examples include rooftops, sidewalks, patios, driveways, parking lots, storage areas, and concrete, asphalt, or gravel roads. 3.025 Land Disturbance Activity Any land change that may result in soil erosion from water or wind and the movement of sediments into or upon waters or lands within this government's jurisdiction, including clearing & grubbing, grading, excavating, transporting and filling of land. Land disturbance activity does not mean: A.) Minor land disturbance activities such as home gardens and individuals home landscaping, repairs, and maintenance work. B.) Construction, installation, and maintenance of electric, telephone, and cable television, utility lines or individual service connection to these utilities, except where over five thousand (5,000) square feet of exposed soil area will result. C.) Tilling, planting, or harvesting of agricultural, horticultural, or silvicultural crops. D.) Installation offence, sign, telephone, and electric poles and other kinds of posts or poles except, where over five thousand (5,000) square feet of exposed soil area will result. E.) Emergency work to protect life, limb, or property and emergency repairs, unless the land disturbing activity would have required an approved erosion and sediment control plan, except for the emergency, then the land area disturbed must be shaped and stabilized in accordance with the city's requirements. 3.026 Permanent Cover Means "final stabilization." Examples include grass, gravel, asphalt, and concrete. 3.027 Paved Surface A constructed hard, smooth surface made of asphalt, concrete or other pavement material. Examples include, but are not limited to, roads, sidewalks, driveways and parking lots. 3.028 Runoff Coefficient The average annual fraction of total precipitation that is not infiltrated into or otherwise retained by the soil, concrete, asphalt or other surface upon which it falls that will appear at the conveyance as runoff. 3.029 Sediment The product of an erosion process; solid material both mineral and organic, that is in suspension, is being transported, or has been moved by water, air, or ice, and has come to rest on the earth's surface either above or below water level. 3.030 Sedimentation Sedimentation means the process or action of depositing sediment caused by erosion. 3.031 Sediment Control The 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. 3.032 Soil The unconsolidated mineral and organic material on the immediate surface of the earth. For the purposes of this document stockpiles of sand, gravel, aggregate, concrete or bituminous materials are not considered "soil" stockpiles. 3.033 Stabilized The exposed ground surface after it has been covered by sod, erosion control blanket, rip rap, or other material that prevents erosion from occurring. Grass seed is not considered stabilization. 3.034 Storm Water The precipitation runoff, storm water runoff, snow melt runoff, and any other surface runoff and drainage (According to the Federal Code of Regulations (40 CFR 122.26 [b][13]), "Storm water means storm water runoff, snow melt runoff and surface and drainage."). 3.035 Storm Water Pollution Control Plan A joint storm water and erosion and sediment control plan that is a document containing the requirements of Section 6, that when implemented will decrease soil erosion on a parcel of land and off-site nonpoint pollution and sediment damages. 3.036 Structure Anything manufactured, constructed or erected which is normally attached to or positioned on land, including portable structures, earthen structures, roads, parking lots, and paved storage areas. 3.037 Temporary Protection The methods employed to prevent erosion. Examples of such protect include; straw, mulch, erosion control blankets, wood chips, and erosion netting. 3.038 Urban Of, relating to, characteristic of, constituting a city. 3.039 Vegetated or Grassed Swales A vegetated earthen channel that conveys storm water, while treating the storm water by biofiltration. Pollutants are removed by both filtration and infiltration. 3.040 Waters of the State As defined in Minnesota Statutes section 115.01, subdivision 22 the term "... "waters of the state" means all streams, lakes, ponds, marshes, watercourses, waterways, wells, springs, reservoirs, aquifers, irrigation systems, drainage systems and all other bodies or accumulations of water, surface or underground, natural or artificial, public or private, which are contained within, flow through, or border upon the state or any portion thereof." 4 (Commentary: Constructed wetlands designed for wastewater treatment are not waters of the state. See the definition of "wetlands. ") 3.041 Wet Detention Facility A permanent man-made structure for the temporary storage of runoff that contains a permanent pool of water. 3.042 Wetlands As defined in Minnesota Rules 7050.0130, subpart F "... "wetlands" are those areas that are inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. Constructed wetlands designed for wastewater treatment are not waters of the state. Wetlands must have the following attributes: A.) A predominance of hydric soils; B.) Inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support a prevalence of hydrophytic vegetation typically adapted for life in a saturated soil condition; and C.) Under normal circumstances support a prevalence of such vegetation." (Commentary: Two quick references of what is an existing identified wetland is the National Wetlands Inventory maps distributed by the U.S. Department of the Interior's Fish and Wildlife Service and the Minnesota Department of Natural Resources maps of protected waters.) Section 4.0 Financial Securities The applicant shall provide security for the performance of the work described and delineated on the approved grading plan involving the storm water pollution control plan and any storm water and pollution control plan related remedial work in an amount of $3,000 per gross acre ($6,000 for work done in a trout stream's watershed) or $1,000 for each single or twin family home, whichever is greater. This security must be available prior to commencing the project. The form of the securities must be one or a combination of the following to be determined by the city: 4.011 The first $3,000 or fifteen percent (15%), whichever is greater, of the financial security for erosion control must be by cash deposit to the city. This deposit shall be in U.S. currency 4.013 Deposit, either with the city, a responsible escrow agent, or trust company, at the option of the city, money, negotiable bonds of the kind approved for securing deposits of public money or other instruments of credit from one or more financial institutions, subject to regulation by the state and federal government wherein said financial institution pledges funds are on deposit and guaranteed for payment. 5 4.014 The city may request a greater financial security than that in Section 4.0, if the city considers the site development to be especially prone to erosion. 4.1 Maintaining the Financial Security. If at anytime during the course of the work this amount falls below 50% of the required deposit, the developer shall make another deposit in the amount necessary to restore the cash deposit to the required amount. A.) If the developer does not bring the financial security back up to the required amount within seven (7) days after notification by the city that the amount has fallen below 50% of the required amount the, city may: l .) 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. 4.2 Proportional Reduction of the Financial Security When more than half of the development's exposed soil area achieves final stabilization, the city can reduce the required amount of the financial security by half. 4.3 Action Against the Financial Security. The city may act against the financial security if any of the conditions listed below exist. The city shall use funds from this security to finance remedial work undertaken by the city or a private contractor under contract to the city and to reimburse the city for all direct cost incurred in the process of remedial work including, but not limited to, staff time and attorney's fees. A.) The developer ceases land disturbing activities and/or filling and abandons the work site prior to completion of the grading plan. B.) The developer fails to conform to the grading plan and/or the storm water pollution control plan as approved by the city. C.) The techniques utilized under the storm water pollution control plan fail within one year of installation. D.) The developer fails to reimburse the city for corrective action taken under Section 5. 4.4 Returning the Financial Security. The financial security deposited with the city for faithful performance of the storm water pollution control plan and any storm water and pollution control plan related remedial work to finance necessary remedial work must be released one full year after the completion of the installation of all storm water pollution control measures as shown on the grading and/or the storm water pollution control plan. Section 5.0 Notification of Failure of the Storm Water Pollution Control Plan The city shall notify the permit holder of the failure of the storm water pollution control plan`s measures. 5.1 Notification by the City. The initial contact will be by phone to the parties listed on the application and/or the storm water pollution control plan. Forty-eight (48) hours after notification by the city or seventy-two (72) hours after the failure of erosion control measures, the city, at its discretion, may begin corrective work. 5.2 Erosion Off-Site. If erosion breaches the perimeter of the site, the applicant shall immediately develop a cleanup and restoration plan, obtain the right-of--entry from the adjoining property owner, and implement the cleanup and restoration plan within forty-eight (48) hours of obtaining the adjoining property owner's permission. In no case, unless written approval is received from the city, may more than seven (7) calendar days go by without corrective action being taken. If in the discretion of the city, the applicant does not repair the damage caused by the erosion, the city may do the remedial work required and charge the cost to the applicant. 5.3 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, prevention strategies, cleanup and repair must be immediate. The applicant shall provide all traffic control and flagging required to protect the traveling public during the cleanup operations. 5.4 Failure to Do Corrective Work. When an applicant fails to conform to any provision of this policy within the time stipulated, the city may take the following actions. A.) Withhold the scheduling of inspections andlor the issuance of a Certificate of Occupancy. B.) Revoke any permit issued by the city to the applicant for the site in question or any other of the applicant's sites with in the city's jurisdiction. C.) Direct the correction of the deficiency by city forces or by a separate contract. The issuance of a permit constitutes aright-of--entry for the city or its contractor to enter upon the construction site for the purpose of correcting deficiencies in erosion control. D.) All costs incurred by the city in correcting storm water pollution control deficiencies must be reimbursed by the applicant. If payment is not made within thirty (30) days after costs are incurred by the city, payment will be made from the applicant's financial securities as described in Section 4. E.) If there is an insufficient financial amount, in the applicant's financial securities as described in Section 4, to cover the costs incurred by the city, 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 7 virtue of Minnesota Statute 429.081 to challenge the amount or validity of assessment. Section 6.0 Storm Water Pollution Control Plan. Every applicant for a building permit, subdivision approval, or a permit to allow land disturbing activities must submit a storm water pollution control plan to the city engineer. No building permit, subdivision approval, or permit to allow land disturbing activities must be issued until the city approves this plan. 6.1 General Policy on Storm Water Runoff Rates. Storm water runoff rates must not increase over the predevelopment two (2) year, ten (10) year and one hundred (100) year storm peak discharge rates. Also accelerated channel erosion must not occur as a result of the proposed activity. 6.2 The Storm Water Pollution Control Plan Must Include: A \ D,-~,;o + rloon.~;r.+;~n• tl~a r~+„ra anr~ r„µ,l^rrn~c~e of tha, land di.ctlwrhing a~tivify and the A.J 1 1VJ \/cl UVJN11~J 11 Vll. 111V 11CL1.liLV {.Lllu it tl amount of grading, utilities, and building construction involved. B.) Phasing of construction: time frames and schedules for the project's various aspects. C.) A map of the existing site conditions: existing topography, property information, steep slopes, existing drainage systems/patterns, type of soils, waterways, wetlands, vegetative cover, one hundred (100) year flood plain boundaries, and labeling the portions of the site within trout stream watersheds. D.) A site construction plan that includes the proposed land disturbing activities, stockpiles, erosion and sediment control plan, construction schedule, and the maintenance and inspection of the storm water pollution control measures. E.) Adjacent areas: neighboring streams, lakes, residential areas, roads, etc., which might be affected by the land disturbing activity. F.) Designate the site's areas with the potential for serious erosion problems. G.) Erosion and sediment control measures: the methods that will be used to control erosion and sedimentation on the site, both during and after the construction process. H.) Permanent stabilization: how the site will be stabilized after construction is completed, including specifications, time frames or schedule. I.) Calculations: any that were made for the design of such items as sediment basins, wet detention basins, diversions, waterways, infiltration zones and other applicable practices. 6.3 General Storm Water Pollution Control Plan Criteria. The plan must address the following:. A.) Stabilizing all exposed soils and soil stockpiles and the related time frame or schedule. B.) Establishing permanent vegetation and the related time frame or schedule. C.) Preventing sediment damage to adjacent properties and other designated areas such as streams, wetlands, lakes and unique vegetation (e.g., oak groves, rare and endangered species habitats.) D.) Scheduling for erosion and sediment control practices. E.) Where permanent and temporary sedimentation basins will be located. F.) Engineering the construction and stabilization of steep slopes. G.) Measures that will control the quality and quantity of storm water leaving a site. H.) Stabilizing all waterways and outlets. I.) Protecting storm sewers from the entrance of sediment. J.) What precautions will be taken to contain sediment when working in or crossing water bodies K.) Restabilizing utility construction areas as soon as possible. L.) Protecting paved roads from sediment and mud brought in from access routes. M.) Disposing of temporary erosion and sediment control measures. N.) How the temporary and permanent erosion and sediment control practices will be maintained. O.) How collected sediment and floating debris will be disposed of. 6.4 Minimum Storm Water Pollution Control Measures and Related Inspections. These minimum control measures are required where bare soil is exposed. Due to the diversity of individual construction sites, each site will be individually evaluated. Where additional control measures are needed, they will be specified at the discretion of the city engineer. The city will determine what action is necessary to prevent excessive erosion from occurring on the site. A.) All grading plans and building site survey's must be reviewed by the city for effectiveness of erosion control measures in the context of the site topography and drainage. B.) Perimeter sediment control measures must be properly installed by the builder before 9 construction activity begins. Such structures may be adjusted during dry weather to accommodate short term activities, such as those that require very large vehicles. As soon as this activity is finished or before rainfall, the erosion and sediment control structures must be returned to the configuration specified by the city. A sediment control inspection must then be scheduled, and passed before a footing inspection will be done. C.) Diversion of channeled runoff around disturbed areas, if practical, or the protection of the channel. D.) Easements. If a storm water management plan involves directing some or all runoff from the site, the applicant shall obtain from adjacent property owners any necessary easments or other property interests concerning the flowing of such water. E.) The scheduling of the site's activities to lessen their impact on erosion and sediment creation. F.) Minimize amount of exposed soil. G.) Control runoff as follows (1 and 2 or 1 and 3): Unless precluded by moderate or heavy snow cover (Mulching can take place if a light snow cover is present.), stabilize all exposed inactive disturbed soil areas within 100 feet of any water of the state, or any conveyance (curb, gutter, storm sewer inlet, drainage ditch, etc.) to a water of the state with sod, seed or mulch. This must be done, if the developer will not work the area for seven (7) days on slopes greater than three feet horizontal to one (1) foot vertical (3:1), fourteen (14) days on slopes ranging from 3 :1 to 10:1 and twenty-one (21) days for flatter slopes. 2.) For disturbed areas greater than five (5) acres construct temporary or permanent sedimentation basins. Sedimentation basins must have a minimum surface area equal to at least 1 % of the area draining to basin, three (3) foot minimum depth, and be constructed in accordance with accepted design specifications including access for operations and maintenance. Sedimentation basins must be maintained regularly including sediment removal to maintain a (three 3) foot depth. Basin discharge rates must also be controlled to prevent erosion in the discharge channel. a.) The applicant is required to obtain a National Pollutant Discharge Elimination System/State Disposal System (NPDES/SDS) construction storm water permit from the Minnesota Pollution Control Agency for any project that disturbs five (5) acres or more of land.) 3.) For disturbed areas less than five (5) acres sedimentation basins are encouraged, but not required, unless specifically required by the city engineer. The applicant shall install erosion and sediment controls at locations directed by the city. Minimum requirements include silt fences, rock check dams, or other equivalent control measures 10 along slopes. Silt fences are required along channel edges to reduce sediment reaching channel. Silt fences, rock check dams, etc. must be regularly inspected and maintained. H.) Sediment basins related to impervious surface area. Where a project's ultimate development replaces surface vegetation with one or more acres of cumulative impervious surface, and all runoff has not been accounted for in a local unit of government's existing storm water management plan or practice, the runoff must be discharged to a wet sedimentation basin prior to entering waters of the state. l .) Work must conform with the current version of the Minnesota Pollution Control Agency's "Protecting Water Quality in Urban Areas," and the current requirements found in the same agency's NPDES permits for storm water associated with construction activities. I.) Generally, sufficient silt fence will be required to hold all sheet flow runoff generated at an individual site, until it can either infiltrate or seep through silt fence's pores. J.) Temporary stockpiling of fifty (50) or more cubic yards of excess soil on any lot or other vacant area will not be allowed without issuance of a grading permit for the earth moving ` activity in question. K.) For soil stockpiles greater than ten (10) cubic yards the toe of the pile must be more than twenty-five (25) feet from a road, drainage channel or storm water inlet. If left for more than seven (7) days, they must be stabilized with mulch, vegetation, tarps or other other means. If left for less than seven (7) days, erosion from stockpiles must be controlled with silt fences or rock check dams. l .) If for any reason a soil stockpile of any size is located closer than twenty-five (25) feet from a road, drainage channel or storm water inlet, and left for more than seven (7) days, it must be covered with tarps or controlled in some other manner L.) Temporary rock construction entrances are required wherever vehicles enter and exit a site. M.) Parking is prohibited on all bare lots and all temporary construction entrances, except where street parking is not available. Gravel entrances are to be used for deliveries only as per the development contract. N.) Streets must be cleaned and swept whenever tracking of sediments occurs and before sites are left idle for weekends and holidays. Establishment of a regular sweeping schedule is encouraged. O.) Water, impacted by the construction activity, that is being removed from the site by 11 pumping must be treated by temporary sedimentation basins, geotextile filters, grit chambers, sand filters, up-flow chambers, hydro-cyclones, swirl concentrators or other appropriate controls as appropriate. Water may not be discharged in a manner that causes erosion or flooding of the site or receiving channels or a wetland. P.) All storm drain inlets must be protected during construction until control measures are in place with either silt fence or an equivalent barrier that meets accepted design criteria, standards and specifications contained in the latest version of the Minnesota Pollution Control Agency's publication, "Protecting Water Quality in Urban Areas." Q.) Catch basins. All newly installed and rehabilitated catch basins must be provided with a sump area for collecting coarse-grained material. Such basins must be cleaned when they are half filled with material. R.) Roof drain leaders. All newly constructed and reconstructed buildings must route roof drain leaders to pervious areas (not natural wetlands) where the runoff can infiltrate. The flow rate of water exiting the leaders shall be controlled so that no erosion occurs in the pervious areas. S.) Follow-up inspections must be performed by the city on a regular basis to ensure that erosion and sediment control measures are properly installed and maintained. In all cases the inspectors will attempt to work with the builder or developer to maintain proper erosion and sediment control at all sites. In cases where cooperation is withheld, construction stop orders may be issued by the city, until erosion and sediment control measures meet Specifications. A second erosion and sediment controUgrading inspection must then be scheduled and passed before the final inspection will be done. T.) Inspection and maintenance. All storm water pollution control management facilities must be designed to minimize the need of maintenance, to provide easy vehicle and personnel access for maintenance purposes and be structurally sound. These facilities must have a plan of operation and maintenance that ensures continued effective removal of the pollutants carried in storm water runoff. The city or its designated representative shall inspect all storm water management facilities during construction, during the first year of operation and at least once every five (5) years thereafter. The city will keep all inspection records on file for a period of six (6) years. It shall be the responsibility of the applicant to obtain any necessary easements or other property interests to allow access to the storm water management facilities for inspection and maintenance purpose. 6.5 Permanent Storm Water Pollution Controls. A.) The applicant shall install or construct, or pay the city fees for all storm water management facilities necessary to manage increased runoff, so that the two (2) year, ten (10) year, and one hundred (100) year storm peak discharge rates existing before the proposed development must not be increased. Also accelerated channel erosion must not occur as a result of the proposed land disturbing or development activity. An applicant may 12 also make an in-kind or a monetary contribution to the development and maintenance of community storm water management facilities designed to serve multiple land disturbing and development activities undertaken by one or more persons, including the applicant. B.) All calculations and hydrologic models/information used in determining peak flows Must be submitted along with the storm water pollution control plan; C.) The applicant shall consider reducing the need for storm water management facilities by incorporating 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 treated (e.g., settled) water without compromising the integrity or quality of the wetland or pond. (Commentary: The sensitivity of a wetland to degradation varies with the type of vegetation. Sedge meadows, open bogs and swamps, coniferous bogs, calcareous fens, low prairies, lowland hardwood swamps, and seasonally flooded basins are highly sensitive to degradation, while flood plain forests, reed canary grass meadows, shallow (reed canary grass, cattail, giant reed or purple loosestrife) marshes are only slightly sensitive to degradation. See the current version of the Minnesota Pollution Control Agency's publication "Storm-Water and Wetlands: Planning and Evaluation Guidelines for Addressing Potential Impacts of Urban Storm-Water and Snow-Melt Runoff on Wetlands "for details.) D.) The following storm water management practices must be investigated in developing the storm water management part of the storm water pollution control plan in the following descending order of preference: 1.) Protect and preserve as much natural or vegetated area on the site as possible, minimizing impervious surfaces, and directing runoff to vegetated areas rather than to adjoining streets, storm sewers and ditches. 2.) Flow attenuation by use of open vegetated swales and natural depressions; 3.) Storm water wet detention facilities (including percolation facilities); and 4.) A combination of successive practices may be used to achieve the applicable minimum control requirements specified in subsection (A) above. The applicant shall provide justification for the method selected. 6.6 Minimum Design Standards for Storm Water Wet Detention Facilities. These facilities must conform to the most current technology as reflected in the current version of the Miiiriesota Pollution Control Agency's publication, "Protecting Water Quality in Urban Areas" and the current requirements found in the same agency's NPDES permits for storm water associated with construction activities. 6.7 Minimum Protection for Natural Wetlands. 13 A.) Runoff must not be discharged directly into wetlands without appropriate quality and quantity runoff control, depending on the individual wetland's vegetation. See the current version of the Minnesota Pollution Control Agency's publication, "Storm-Water and Wetlands: Planning and Evaluation Guidelines for Addressing Potential Impacts of Urban Storm-Water and Snow-Melt Runoff on Wetlands" for guidance. (Commentary: The sensitivity of a wetland to degradation varies with vegetation type. Sedge meadows, open bogs and swamps, coniferous bogs, calcareous fens, low prairies, lowland hardwood swamps, and seasonally flooded basins are highly sensitive to degradation, while flood plain forests, reed canary grass meadows, shallow (reed canary grass, cattail, giant reed or purple loosestrife) marshes are only slightly sensitive to degradation.) B.) At the minimum a one hundred (100) foot wide protective buffer strip of native vegetation must surround all wetlands. The width of this buffer strip muse be increased at least two (2) feet per one (1) percent of slope of the surrounding land. (Commentary: "Native"vegetation is preferred, since some non-native plant species can out compete native species and create amono-culture of decreased environmental value. Useful references are the Minnesota Pollution Control Agency's publications "Buffer Zones" and "Soil Bioengineering. " Detailed buffer design is usually site specific. Site specific design criteria should follow common principles and the example of nearby natural areas. The site should be examined for existing buffer zones and mimic the slope structure and vegetation as much as possible. The function of the buffer is a better indicator than the width. Buffer design and protection during construction should do any or all of the following: slow water runoff, trap sediment, enhance water infiltration, trap fertilizers, pesticides, pathogens, heavy metals, trap blowing snow and soil, and act as corridors for wildlife. How much stress is put on these functions will determine the buffer zone's final configuration. Native plant species have root systems and growth characteristics that are well suited to buffer functions. Useful guides for starting the plant selection include Minnesota Department of Transportation's seeding manual, and their "Plant Selection Matrix" CDItOM. Good plant species design stresses diversity and allows plant succession and zoning of the species from wet soil preference to drier upland species.) C.) Wetlands must not be drained or filled, wholly or partially, unless replaced by either restoring or creating wetland areas of at least equal public value. (Commentary: For example, a groundwater fed Type 4 wetland should be replaced with another groundwater fed Type 4 wetland..) Replacement must be guided by the following principles in descending order of priority.) 1.) Avoid the direct or indirect impact of the activity that may destroy or diminish the wetland. 14 2.) Minimize the impact by limiting the degree or magnitude of the wetland related activity and its implementation. 3.) Rectify the impact by repairing, rehabilitating, or restoring the affected wetland environment with one of at least equal public value. 4.) Reduce or eliminate the impact over time by preservation and maintenance operations during the life of the activity. 5.) Compensating for the impact by replacing or providing substitute wetland resources or environments with those of at least equal public value. Compensation, including the replacement ratio and quality of replacement should be consistent with the requirements outlined in the rules adopted by the Board of Water and Soil Resources to implement the Wetland Conservation Act of 1991 including any and all amendments to it. 6.8 Models/Methodologies/Computations. Hydrologic models and design methodologies used for the determining runoff characteristics and analyzing storm water management structures must be approved by the city engineer. Plans, specifications and computations for storm water management facilities submitted for review must be sealed and signed by a registered professional engineer. All computations must appear on the plans submitted for review, unless otherwise approved by the city engineer. 6.9 Variance. Where in the judgment of a registered professional engineer, experienced in the field of storm water and erosion and sediment control, site conditions warrant or where the practices or practice standards will be insufficient to control erosion and sedimentation for a land disturbance activity, the city engineer may grant a variance from this ordinance on a case- by-case basis. The content of a variance must be specific, and must not affect other approved provisions of a plan. A.) The variance request must be in writing. B.) The variance must be in writing and include the reason for granting the variance. 6.10 Special Trout Stream Watershed Requirements. A.) There must be no increase in either the volume or rate of storm water runoff for any design storm with a statistical recurrence interval of less than ten (10) years (i.e., the two (2) year, five (5) year, etc. storm events), unless diversion is not practical and/or the soil is not suitable for storm water infiltration techniques. (Commentary: The intent is to encourage either storm water infiltration or diversion, since urban trout streams are a unique resource. Residential development increases the total volume of runoff resulting from a given storm. Since there is a larger volume of water to deal with, limiting the rate of storm runoff to predevelopment rates means that high flows (and therefore souring velocities) will persist for longer periods of time than during predevelopment conditions. This increases 15 channel erosion. Infiltration or diversion deals with this increased scouting problem by lessening the volume of runoff and therefore the duration of scouring velocities.) l.) The phrase, "soil not suitable for storm water infiltration techniques" means soils with permeability values less that Group C soils (less than 2.5 inches per hour) as defined by the U.S. Department of Agriculture's Natural Resources Conservation Service. B.) Temporary sedimentation basins are required for disturbed areas over one (1) acre. C.) Storm water treatment devices that remove oil and floatable material (e.g., basin outlets with submerged entrances) must be part of BMP systems. D.) Where feasible lightly used vehicle traffic areas such as overflow parking lots should use pervious surfaces such as concrete blocks or cabled concrete blocks where feasible. E.) If the proposed project site includes a trout stream tributary that currently experiences erosion and/or sedimentation problems, the applicant must work with the city to include channel modifications in the project that will also address the existing erosion and/or sedimentation problem. F.) Preserve or install a one hundred (100) foot wide (i.e., 100 feet from each bank) vegetated buffer strip of native species providing a native tree canopy directly on Minnesota Department of Natural Resources designated trout stream reaches and all tributaries directly to a designated trout stream reach. The width of this buffer strip must be increases by at least two (2) feet for each one (1) percent of slope of the surrounding land. (Commentary: A "native "tree canopy along the bank is preferred, since some non-native trees can out compete native species and create amono-culture of decreased environmental value. Useful references are the Minnesota Pollution Control Agency's "Buffer Zones" and "Soil Bioengineering. ") Detailed buffer design is usually site specific. Site specific design criteria should follow common principles and the example of nearby natural areas. The site should be examined for existing buffer zones and mimic the slope structure and vegetation as much as possible. The function of the buffer is a better indicator than the width. Buffer design and protection during construction should do any or all of the following: slow water runoff, trap sediment, enhance water infiltration, trap fertilizers, pesticides, pathogens, heavy metals, trap blowing snow and soil, and act as corridors for wildlife. How much stress is put on these functions will determine the buffer zone's final configuration. Native plant species have root systems and growth characteristics that are well suited to buffer functions. Useful guides for starting the plant selection include Minnesosta Department of Transportation's seeding manual, and their "Plant Selection Matrix" CDROM. Good plant species design stresses diversity and allows plant succession and zoning of the species from wet soil preference to drier upland species.) 16 l.) The applicant/and or developer shall maintain the buffer strip for the first year. After that the city, or a party designated by the city, shall maintain the buffer strip. (Commentary: Even after a buffer strip is established it will require periodic inspection and possibly maintenance to ensure that it is functioning properly. Otherwise siltation and channeling may short-circuit the strip's function.) G.) Preservation of or installation of a fifty (50) foot (i.e., 50 feet from each bank) wide vegetated buffer strip of native species providing a stream bank canopy of native trees for the reach upstream of a Minnesota Department of Natural Resources designated trout stream reach and for all tributaries upstream of the designated trout stream reach. The width of this buffer strip must be increases by at least two (2) feet for each one (1) percent of slope of the surrounding land. (Commentary:A "native "tree canopy is preferred, since some non-native trees can out compete native species and create amono-culture of decreased environmental value. Useful references are the Minnesota Pollution Control Agency's "Buffer Zones" and "Soil Bioengineering. " Detailed buffer design is usually site specific. Site specific design criteria should follow common principles and the example of nearby natural areas. The site should be examined for existing buffer zones and mimic the slope structure and vegetation as much as possible. The function of the buffer is a better indicator than the width. Buffer design and protection during construction should do any or all of the following: slow water runoff, trap sediment, enhance water in, f filtration, trap fertilizers, pesticides, pathogens, heavy metals, trap blowing snow and soil, and act as corridors for wildlife. Ilow much stress is put on these functions will determine the buffer zone's final con, figuration. Native plant species have root systems and growth characteristics that are well suited to buffer functions. Useful guides for starting the plant selection include Minnesota Department of Transportation's seeding manual, and their "Plant Selection Matrix" CDROM. Good plant species design stresses diversity and allows plant succession and zoning of the species from wet soil preference to drier upland species.) l .) The applicant/and or developer shall maintain the buffer strip for the first year. After that the city, or a party designated by the city, shall maintain the buffer strip. (Commentary: Even after a buffer strip is established it will require periodic inspection and possibly maintenance to ensure that it is functioning properly. Otherwise siltation and channel cutting may short-circuit the strip's function.) H.) Permanent buildings erected on sites that border directly on and all tributaries directly on a Minnesota Department of Natural Resources designated trout stream must not be occupied until the permanent vegetative cover has been established. Such cover must meet this ordinance's definition of "final stabilization." I.) The applicant must consider methods for reducing the amount of impervious surface 1~ on the site. Suggestions include: 1.) Reduce road widths. 2.) Eliminate paving in the center of cul de sacs. 3.) Reduce sidewalk widths. 4.) Allow and provide for shared parking. 5.) Install semipermeable/permeable or porous paving. 6.) Vegetated swales instead of curb and gutter. 7.) Filter strips 8.) "Green" (vegetated) roofs. Section 7.0. Review. The city engineer shall review the storm water pollution control plan. This review must be completed within fourteen (14) days of receiving the plan from the developer. 7.1 Permit Required. If the city determines that the storm water pollution control plan meets the requirements of this ordinance, the city shall issue a permit valid for a specified period of time, that authorizes the land disturbance activity contingent on the implementation and completion of this plan. 7.2 Denial. If the city determines that the storm water pollution control plan does not meet the requirements of this ordinance, the city shall not issue a permit for the land disturbance activity. This plan must be resubmitted for approval before the land disturbance activity begins. A.) All land use and building permits must be suspended until the developer has an approved storm water pollution control plan. Section 8.0. Modification of Plan. An approved storm water pollution control plan may be modified on submission of a written application for modification to the city, and after written approval by the city engineer. In reviewing such an application, the city engineer may require additional reports and data. 8.1 Records Retention. The city shall retain the written records of such modifications for at least five (5) years. Section 9.0. Enforcement. The city shall be responsible enforcing this ordinance. 18 9.1 Penalty. 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 must be suspended until the developer has corrected the violation. Each day that a separate violation exists shall constitute a separate offense. Section 10.0 Might of Entry and Inspection. The applicant shall allow the city and their authorized representatives, upon presentation of credentials: A.) To enter upon the permitted site for the purpose of obtaining information, examination of records, conducting investigations, surveys or investigations. B.) To bring such equipment upon the permitted development as is necessary to conduct such surveys and investigations. C.) To examine and copy any books, papers, records, or memoranda pertaining to activities or records required to be kept under the terms and conditions of this permitted site. D.) To inspect the storm water pollution control measures required in this permit. E.) To sample and monitor any items or activities pertaining to permits issued by the city. Section 11.0 Severability. The provisions of this ordinance are severable, and if any provisions of this ordinance, or application of any provision of this ordinance to any circumstance, is held invalid, the application of such provision to other circumstances, and the remainder of this ordinance must not be affected therby. Section 12.0. Effective Date. This ordinance will take effect and be in force after its passage and official publication. 19 Extra Information 1Vlinnesota Statute § 489.081 429.081 Appeal to district court. Within 30 days after the adoption of the assessment, any person aggrieved, who is not precluded by failure to object prior to or at the assessment hearing, or whose failure to so object is due to a reasonable cause, may appeal to the district court by serving a notice upon the mayor or clerk of the municipality. The notice shall be filed with the court administrator of the district court within ten days after its .service. The municipal clerk shall furnish appellant a certified copy of objections filed in the assessment proceedings, the assessment roll or part complained of, and all papers necessary to present the appeal. The appeal shall be placed upon the calendar of the next general term commencing more than five days after the date of serving the notice and shall be tried as other appeals in such cases. The court shall either affirm the assessment or set it aside and order a reassessment as provided in section 429.071, subdivision 2: If appellant does not prevail upon the appeal, the costs incurred shall be taxed by the court and judgment entered therefor. All objections to the assessment shall be deemed waived unless presented on such appeal. This section provides the exclusive method of appeal from a special assessment levied pursuant to this chapter. HIST: 1953 c 398 s 8; 1961 c 525 s 9; 1978 c 749 s 2; 1980 c 607 art 11 s 3; 1Sp1986 c 3 art 1 s 82 Copyright 1998 by .the Office of Revisor of Statutes, State of 1Vlinnesota. Zo a ~',~ ~,O v ~~ ~ ~~ , - f ~ Questions? Calt Julie @659-772-7938 or :mail to Julie.westerlund@dnr.state.mn.us This D13AFT section is a brainstorffi of goals, strategies, and actions- it focuses on the three main categories identified in the watershed description: 1) physical conditions affecting surface water drainage, 2) groundwater, and 3) in-stream features. For each category, the following were identified: -goals ®current conditions ®threats'aaad opportunities ~a general strategy D specific strategies © tasks for each specific strategy • implementation teams for each task >indicators for each goal Please be prepared to discuss this section at the newt meetino As you read, please keep the following in mind: 1) Strategies and tasks are not listed in priority orders They. aze a brainstormed list of many possibilities. The CACJTAC will add, delete, and pr;tor>ttize strateeso 2) Implementation teams aze not listed in priority order, and in many cases they may have inciuded/e~cluded a group that does not/daes belong. Please evaluate each carefully. The CAC~AC will assign a teaffi, c®ffiplete with a lead group or individualo 3) Some tasks list `Advisory Committee' as aaask implementer. After the plan is completed and implementation begins, the members `of the current Technical Advisory Committee will participate in specific tasks,,but the committee as we know it would only meet on a limited, as-needQd basis. The `Advisory Committee' as noted under implementation teams in this : _ ~,. document vvouid be a large, ffiore active, citizemm-based group (with technical ~;~,~ . supp®rt'a§ ni;~ded). They hopefully would take much of the responsibility for seeing`that `i~_~ tasks are implemented, and they would probably meet on a somewhat regular basis to track implementati®n and identify new concerns or projectso The current CACPTAC can further clarify future `Advisory Committee'roles. 4) Some of the specific strategies and tasks are currentlybeing worked on or have already been completed, and will be included as part of the subwatershed management plan. For example, specific strategy #3.3.E (Develop a buffer plan) has been identified by the TAC/CAC as an important component of the overall plan and is in progress. Dy prioritizing strategies and tasks now, the TAC/CAC will be able to identify those plan elements which are the ~n®st critical now, and which can be coffipleted later. At'this point, please think of this section as a tool to guide us through the plann;ng process and into plan implementation. '~If you are unable to make the meeting in early January, please phone, email, mail or faa comments to Julie Westerlund, M1V DIVR, 1200 Warner Road, St. Paul, 55106 (fa~:651-772-?977) bef®re the meeting. i :. c 4 3.1 Introduction The overall goal for Valley Creek, as taken from the VBWD's Water iV1an :,` _' i~ ,`;_,`. ~~. ~~ "...preservation of its water quality and trout stream habitat...". The overriding natural resource issue for Valley Creek is the way in which water flows across the landscape (watershed processes and function). The concept of drainage is a key component of watershed processes because drainage determines the location, volume, and rate of downstream transfer of water, sediment, nutrients, organic material, and anything else of the landscape that could be carried by water to the stream. The way these materials are transferred downstream depends on the physical characteristics of the land, such as geology, soils, slope, vegetative cover, and land use. The other issues in this plan will relate back to the issue of drainage and healthy watershed function. Therefore, management and protection of Valley Creek needs to focus on the entire watershed. The more specific goals and strategies for managing the Valley Creek watershed are discussed in this section. For each management issue identified in Section 2, a series of points are summarized: the management issue, current watershed conditions relative to that issue, threats and opportunities, goals which have been set for that issue, strategies and actions for meeting the goals, and parties responsible for implementation. A list of potential indicators is also given for each management issue. 3-1 Section 3 Strategies for Watershed Processes 3.2 Watershed Processes Land use and management influences the interaction between water and land, and can be a major factor in the health or a river, wetland, lake, or stream. Because a water body receives water from a large area, management of that water body needs to focus on the entire watershed. Poorly managed land or increased development pose serious threats to the healthy function of the watershed. Goal: Maintain or improve the current hydrologic regime of the Valley Creek watershed. Current Valley Creek is a world class trout stream with good water quality and Conditions: physical habitat. Hydrologic changes cycle within the watershed will impact the creek. Threats and Development pressures threaten the continued healthy function of the Opportunities: watershed. (Threat) There is a high level of interest in watershed stewardship among stakeholders, and this plan is currently being developed. This plan will make recommendations to the Valley Branch Watershed District, the Cities of Afton and Woodbury, and watershed residents for watershed protection strategies and actions. The plan will also identify responsible parties for implementing the recommended actions. (Opportunity) Strategies, The following sections list strategies, actions, and implementation teams Actions and that address the general goal and issues of watershed processes. Implementation Teams: Indicators: The advisory committee has chosen to use the existence of the naturally reproducing trout populations in Valley Creek as an indicator of overall stream and watershed health. 3-2 Section 3 Strategies for Physical Conditions Affecting Surface Water Drainage 3.3 Physical Conditions Affecting Surface Water Drainage Surface water quantity and quality is affected directly by the natural and manmade physical conditions of the watershed's landscape. Changes to the land will affect he water quality and quantity of downstream water bodies and groundwater. Goals: ®. Minimize the negative effects of human activities which alter the landscape and potentially harm healthy watershed function. Maintain or improve the quality of surface water, including prevention of water temperature increases in Valley Creek. Prevent property damage or loss due to flooding. Current Land cover in the Valley Creek watershed is mainly agricultural and low Conditions: density residential, resulting in an overall low amount of imperviousness. (Based on 1994 aerial photographs, three percent of the watershed is covered by impervious surfaces.) This low amount of imperviousness is a large reason why the current water quality in Valley Creek is so high and can support a reproducing trout population. Although flooding is not considered a major issue, there is ample evidence that occasional flooding - occurs during spring snowmelt. There are two homes within the Fahlstrom Pond floodplain. This is a landlocked area and high water levels have been reported in 1969 and 1986. Threats: 1) Development. Development pressure threatens the continued healthy function of the watershed by adding impervious surfaces, which can significantly increase the volume of runoff. This could result in degradation of stream health due to higher volume of surface water and pollutants (instead of cold, clean groundwater) flowing through the creek, causing higher water temperatures and possibly more erosion and flooding. Impervious surface can also decrease the amount of water that reaches the groundwater aquifer. -- These development pressures are real. The Valley Creek watershed- - is located in one of the fastest growing counties in the nation. (Add in growth projections for Afton and ~~oodbury} 2) Physical landscape features. Land altering activities which reduce the stability of slopes (such as vegetation removal) can change the drainage network of the watershed, cause erosion of soils, form gullies, and degrade the health of the watershed and Valley Creek. - -, , ~-~ Section 3 Strategies for Physical Conditions Affecting Surface Water Drainage Opportunities: 1) Development. The zoning policies and comprehensive plan choices made by Afton and Woodbury can help protect the watershed and creek. The rules and regulations of Valley Branch Watershed District will help keep future houses from being flooded. Careful planning, education, and innovative development techniques can minimize impacts to the watershed. For example, the use of on-site infiltration practices and other best management practices can reduce the impacts of increased imperviousness to Valley Creek. 2) Physical landscape features. A detailed study of the Valley Creek watershed has identified areas, which, due to slope, soil, underlying geology, or other features, are sensitive to land alterations. By making this information available watershed wide, sensitive areas can be protected through voluntary actions of landowners. Furthermore, some of these areas are protected by ordinances such as Afton's steep slope ordinance. General Strategy: Carefully locate future development in the least sensitive portions of the watershed. Prohibit or limit development in the most ecologically sensitive areas and flooding potential areas of the watershed. Use alternative stormwater management practices to minimize the effects of imperviousness on the watershed. Enforce existing regulations regarding slopes. Specific Strategies (actions are listed below strategies): A) Develop and implement a Land Protection Plan (23 actions) B) Develop or revise current stormwater management plans (9 actions) C) Develop a flood protection plan. (4 actions) D) Develop an erosion control plan. (9 actions) E) Develop a buffer plan. (5 actions) F) Ensure septic systems are up to code. (2 action) G) Foster the use of "green" lawn care products and techniques, proper disposal of chemicals, proper use of herbicides and pesticides, and locations of pastures. (5 actions) 3-4 Section 3 Strategies for Physical Conditions Affecting Surface Water Drainage Specific Strategy: A) Develop and implement a Land Protection Plan that will ~' protect and enhance wetland habitats protect and enhance native terrestrial plant communities protect and enhance blocks of unfragmented forest, grassland, and wetland habitats ~' create and preserve a network of wildlife corridors B) Develop or revise current stormwater management plans C) Develop a flood protection plan. D) Develop an erosion control plan. E) Develop a buffer plan. F) Ensure septic systems are up to code. G) Foster the use of "green" lawn care products and techniques, proper disposal of chemicals, proper use of herbicides and pesticides, and locations of pastures. Actions and Al) Analyze watershed data to identify critical areas and the best sites Implementation for locations of development, agriculture, and green infrastructure. Team(s): Implementation Team: University of Minnesota, Cities A2) Develop criteria for determining, and designate preferred areas for development, agriculture, and green infrastructure. Implementation Team: Advisory Committee, Cities A3) Amend comprehensive plans to reflect areas designated in A2. Implementation Team: Cities A4) Create an overlay district with unique zoning codes for Valley Creek watershed. Implementation Team: Cities A5) Amend zoning codes for Valley Creek watershed. Implementation Team: Cities A6) Avoid or prohibit development of impervious surfaces within ? feet of the stream by education and voluntary actions and by modifying rules and/or ordinances. Implementation Team: Landowners, Developers, Advisory Committee, VBWD, and Cities. A7) Recommend/ensure that each land parcel in the watershed contains no more than 10°,~o impervious surfaces by modifying rules and/or ordinances, by education and voluntary actions. Implementation Team: VBWD, Cities, Landowners, developers, and Advisory Committee. 3-5 Section 3 Strategies for Physical Conditions Affecting Surface Water Drainage A8) Use Purchase of Development Rights and Transfer of Development Rights to influence locations of development, participate in existing programs or develop programs to meet needs. Implementation Team: Cities, County, 1000 Friends of MN, Non- profit Organizations, SWCD, Private parties. A9) Develop a prioritized list of lands for restoration, improvement, or protection as open space. Subactions include compiling data, determining prioritization criteria, and approving criteria. Implementation Team: Washington County SWCD, University of MN, DNR, 1000 Friends of MN, VBWD, Science Museum of MN, BWSR, and Advisory Committee. A10) Use conservation easements or land acquisition to protect priority lands identified in previous. Implementation Team: Cities, County, DNR Greenways Program, land trusts, Belwin. A11) Improve, restore, and/or protect high priority lands by approaching land owners, explaining the ecological value of their property, suggesting that land owners voluntarily modify their land use, and solicit donated easements.. Implementation Team: Advisory Committee, 1000 Friends of NIN, MN Land Trust, DNR, Cities, VBWD, BWSR, and Washington County SWCD. A12) Seek funds for purchase of easements/restoration projects, and implement restoration projects. Implementation Team: Washington County SWCD, DNR, Cities, VBWD, BWSR, and Advisory Committee. Ala) Follow The Center for Watershed Protection's guidelines: "Better Site Design" and "Nutrient Loading from Conventional and Innovative Site Development," and other development guidelinesBMPs. Create new rules and ordinances to not only allow these practices, but encourage them. Implementation Team: Cities, developers, landowners, county, and VBWD. A14) Distribute the Alternative Stormwater Best Management Practices Guidebook included in Appendix X to developers and watershed residents, particularly farmers and riparian landowners. Implementation Team: Advisory Committee, VBWD, cities, citizens A15) _ Assign community and technical liaisons to watershed stewardship zones to do watershed outreach. 3-6 Section 3 Strategies for Physical Conditions Affecting Surface Water Drainage Implementation Team: Advisory Committee. Liaisons: Washington SWCD, VBWD, cities, BWSR, DNR, University of MN, St. Croi.Y Watershed Research, other technical experts. A16) Ensure landowners are educated and B1VIPs are implemented in each watershed stewardship zone. Implementation Team: Watershed Stewardship Liaisons as assigned above; Advisory Committee. A17) Write and implement forest stewardship plans for interested watershed landowners Implementation Team: Advisory Committee, DNR, Washington SWCD, Liaisons A18) Develop a system of parks, trails, and fishing access within green infrastructure/open space areas by acquiring property and building trails. Implementation Team: Cities, Parks/Open Space Commission, DNR, Trout Unlimited. A19) Require construction site phasing by rules and ordinances. Implementation Team: Cities, County, State, VBWD A20) Prohibit sewer trunk mains in stream valley by rules and ordinances. Implementation Team: Cities, County, State, VBWD. A21) Encourage the use of native vegetation whenever possible. Minimize the use of non-native, invasive species, and reduce the amount of Kentucky Bluegrass. Get help from native plant experts. Raise money to buy native plants. Start a gardening club to share native plants. Require new developments and redevelopments to use native vegetation. Implementation Team: Advisory Committee, landowners, DNR, cities, VBWD, Washington SWCD, University of Minnesota. A22) Remove invasive non-native species, such as purple loosestrife and buckthorn. First, identify and-prioritize problem areas. Then secure - - funding for removal projects, and finally, implement removal projects. Implementation Team: Advisory Committee, Washington SWCD, DNR, landowners, cities, VBWD. A23) Improve riparian canopy by planting trees in riparian areas that provide shade to the stream. Get funding to plant the trees. Stage 3-7 Section 3 Strategies for Physical Conditions Affecting Surface Water Drainage an Arbor Day tree planting event. Implementation Team: Landowners, developers, TU, Advisory Committee, DNR, Washington SWCD. Specific Strategy: A) Develop and implement a Land Protection Plan 'B) Develop or revise current stormwater management plans to reduce future increases in the volume of stormwater runoff by minimizing impervious surfaces and encouraging infiltration .r strongly encourage the use of Best Management Practices wherever possible in the watershed - encourage on-site (preferred) or regional infiltration of stormwater - educate landowners about intermittent and ephemeral drainage systems C) Develop a flood protection plan. D) Develop an erosion control plan. E) Develop a buffer plan. F) Ensure septic systems are up to code. G) Foster the use of "green" lawn care products and techniques, proper disposal of chemicals, proper use of herbicides and pesticides, and locations of pastures. Actions and Bl) Develop a checklist based on the BMP manual (Appendix X) as part Implementation of the VBWD permit process. Developers will be asked to check Team(s): which of the BMPs . For items not included in their plans, developers will need to briefly explain why there were not included. The checklist will encourage developers to consider methods that will reduce the volume of stormwater runoff and improve water quality. Implementation Team: VBWD B2) Complete several stormwater demonstration projects through the state and metropolitan area. The projects should test a variety of methods to detain and infiltrate stormwater on-site, monitor results, and assess their applicability to developing and redeveloping land in the watershed. Implementation Team: MAWD B3) Once more information becomes available regarding operational and maintenance issues of the infiltration practices, modify and implement specific VBWD rules. - Implementation Team: VBWD B4) Require that new developments and redevelopments infiltrate 3-8 Section 3 Strategies jor Physical Conditions Affecting Surface Water Drainage stormwater. Subactions include Actions 1, 2, 3 of Watershed Processes. Implementation Team: VBWD, Cities, Counties, MAWD. B5) Voluntarily install infiltration facilities in developed areas. (Replace curb and gutters with swales and ditches, if applicable.) Implementation Team: Cities, developers, landowners. B6) Give assistance and incentives to individuals and developers to install and maintain infiltration facilities. Implementation Team: Cities, VBWD, Washington SWCD, BWSR, MPCA, DNR, Advisory Committee, MAWD. B7) Seek funds for infiltration implementation restoration projects. Implementation Team: Washington SWCD, VBWD, DNR, BWSR, cities. BS) Set up a stormwater utility to cover costs related to maintenance of infiltration and other stormwater related facilities. Implementation Team: VBWD or cities B9) Prepare a map of ephemeral and drainage systems and educate the public about watershed processes and the concept of drainage. Implementation Team: Advisory Committee, Washington SWCD, DNR, BWSR, University of MN. Specific Strategy: A) B) 4C) D) E) F) G) Develop and implement a Land Protection Plan Develop or revise current stormwater management plans Develop a flood protection plan. Develop an erosion control plan. Develop a buffer plan. Ensure septic systems are up to code. (Y action) Foster the use of "green" lawn care products and techniques, proper disposal of chemicals, proper use of herbicides and pesticides, and locations of pastures. (5 actions) --factions and C1) Establish a flood_level of the entire creek. __ _ Implementation Implementation Team: VBWD Team(s): C2) - Continue to prohibit new development in floodplains. Implementation Team: VBWD C3) Continue to enforce floodplain ordinances. Modify them if needed. Implementation Team: Cities 3-9 Section 3 Strategies for Physical Conditions Affecting Surface Water Drainage C4) Move structures within the floodplain out of it instead of install flood control structures. Implementation Team: Residents, cites, VBWD, DNR. Specific Strategy: A) Develop and implement a Land Protection Plan B) Develop or revise current stormwater management plans C) Develop a flood protection plan. D) Develop an erosion control plan. E) Develop a buffer plan. F) Ensure septic systems are up to code. G) Foster the use of "green" lawn care products and techniques, proper disposal of chemicals, proper use of herbicides and pesticides, and locations of pastures. Actions and D1) Use Natural Resources Inventory data to identify sediment delivery Implementation areas and sediment treatment areas. Team(s): Implementation Team: Washington SWCD,VBWD, DNR, BWSR, Science Museum, University of MN, cities, counties. D2) Determine criteria for prioritization of needed projects, develop a prioritized list of potential stabilization projects. Implementation Team: Washington SWCD, Advisory Committee, VBWD, DNR, BWSR, Science Museum, University of MN, cities, counties. D3) Approve criteria and list. Implementation Team: Advisory Committee D4) Identify the most appropriate stabilization alternative for each project. Implementation Team: VBWD, Washington SWCD, cities, counties D5) Fund and implement stabilization projects. Implementation Team: VBWD, Washington SWCD, cities, county, landowners, BWSR, DNR. D6) Continue to enforce steep slime ordinances, modify them if needed. Implementation Team: Cities. D7) Follow Best Management Practices on all construction sites. Implementation Team: Developers. D8) Host an educational seminar for developers on the importance of erosion control 3-10 Section 3 Strategies jor Physical Conditions Affecting Surface Water Drainage Implementation Team: Minnesota Erosion Control Association, Cf~ies, VBWD, Washington SWCD,MPCA, BWSR, DNR D9) Continue to enforce erosion control regulations/guidelines, modify them if needed. Implementation Team: Cities, VBWD. Specific Strategy: A) B) C) D) -E) F) G) Develop and implement a Land Protection Plan Develop or revise current stormwater management plans Deuelop a flood protection plan. Deuelop an erosion control plan. Develop a buffer plan. Ensure septic systems are up to code. Foster the use of "green" lawn care products and techniques, proper disposal of chemicals, proper use of herbicides and pesticides, and locations of pastures. Actions and El) Determine the most appropriate buffer width and type according to Implementation proximity to stream or wetland and wetland type. Team(s): Implementation Team: VBWD, DNR, Washington SWCD, University of MN, BWSR, Science Museum, Cities. ~~ ~~,~fi~ E2) Modify rules to include buffer recommendations from Action El. Implementation Team: VBWD. E3) Require new developers to install posts and signs at buffer edges. The signs include language that tells of the buffer, and how it should not be mowed, and no dumping should occur within the buffer. Implementation Team: VBWD, Cities. E4) Encourage landowners to install buffers, and make them wider than the minimum required. Implementation Team: VBWD, cities, DNR, Washington SWCD, Advisory Committee. E5) Enforce the buffer rules. Implementation Team: VB«'D, Cities. Specific Strategy: A) Develop and implement a Land Protection Plan B) Develop or revise current stormwater management plans C) Develop a flood protection plan. D) Deuelop an erosion control plan. E) Deuelop a buffer plan. 3-l l Section 3 Strategies for Physical Conditions Affecting Surface Water Drainage 'F) Ensure septic systems are up to code. G) Foster the use of "green" lawn care products and techniques, proper disposal of chemicals, proper use of herbicides and pesticides, and locations of pastures. Action and F1) Inspect and enforce compliance. Implementation Implementation Team: Cities, MPCA, residents Team: F2) Educate landowners about proper operation and maintenance of septic systems. Implementation Team: MPCA, VBWD, Cities Specific Strategy: A) Develop and implement a Land Protection Plan B) Develop or revise current stormwater management plans C) Develop a flood protection plan. D) Develop an erosion control plan. E) Develop a buffer plan. F) Ensure septic systems are up to code. 'G) Foster the use of "green" lawn care products and techniques, proper disposal of chemicals, proper use of herbicides and pesticides, and locations of pastures. Action and Gl) Educate the public about "green" lawn care. Implementation Implementation Team: Advisory Committee, MAWD, VBWD, Teams: Washington County Extention. G2) Develop an ordinance prohibiting the use of phosphorus-containing fertilizer. Implementation Team: Cities. G3) Provide disposal sites for harmful household chemicals. Implementation Team: Cities. G4) Prohibit the use of herbicides and pesticides within X feet of streams and wetlands. Implementation Team: Cities G5) Prohibit pasturing of horses, cattle, and other livestock within X feet of streams and wetlands, unless part of an approved livestock management plan. Implementation Team: Cities, county Indicators: Percent of impervious surfaces in the watershed (no higher than 10) 3-12 Section 3 Strategies for Physical Conditions Affecting Surface Water Drainage • Growth and development indices • Number of acres of permanently protected lands through conservation easements • Percent of priority properties protected and/or restored • Presence of a watershed overlay district with special ordinances • Flood frequency • Property loss or damage due to flooding • Number of flood control measures • Water chemistry parameters (dissolved oxygen, temperature, total suspended solids, chl. a., Secchi disc, phosphorus, nitrogen, ammonia, BOD; fecal coliform bacteria) • Percent of drainage network that is buffered • Width of buffers • Sediment and nutrient loading rates • Soil stability • Slope stability • Sediment contamination • Frequencies of measured water quality exceeding standards • Biotic indices for macroinvertebrates and fish • BMPs installed • P Reduction • Soil loss 3-13 Section 3 Strategies for Groundwater 3.4 Groundwater Groundwater is the source of drinking water for the majority of watershed residents. Groundwater is also the main source of the baseflow in Valley Creek. The quality and quantity of groundwater is critical for the health of the residents and the stream and its inhabitants. Goals: ® Prevent groundwater contamination. ® Prevent aquifer depletion. ® Protect groundwater recharge areas. Current The south branch of Valley Creek is fed almost exclusively by groundwater Conditions: from the Jordan Sandstone and Prairie Du Chien bedrock layers. These two layers provide a continuous flow of cold, clean water, which makes the stream inhabitable by trout. The St. Croix Watershed Research Station is monitoring stream flow which gives some information about groundwater quality. Research indicates that the ground-watershed may occupy a much different (and larger) geographic area than the surface watershed. See DP's map -susceptibility to contamination? Data from Washington County indicates that excessive levels of nitrates maybe present in some groundwater soures. (Needs to be verified.) Threats and 1) Many areas in the watershed indicated susceptibility to groundwater Opportunities: contamination. (Threat) 2) Some areas are more sensitive to changes in land use/cover than others -these areas can be sinks for discharge of contaminants into groundwater. (Threat) 3) This contamination can be prevented. (Opportunity) General Strategy: Ensure that recharge areas do not receive contaminated water, and ensure that groundwater appropriations do not deplete stream flow. Ensure that additions of imperviousness in the watershed do not cover critical - -- groundwater recharge-areas. 3-14 Section 3 Strategies for Groundtivater Actions and 1) Clearly identify groundwater watershed. Review study by SCWRS Implementation and Afton. Team(s): Implementation Team: SCWRS, Cities, VBWD, Washington County. 2) Clearly identify groundwater recharge areas. Implementation Team: SCWRS, University of MN 3) Monitor recharge areas through observation wells and other monitoring stations and report on e:cisting monitoring, identify gaps in data, establish sites to fill gaps. Implementation Team: Washington County, MPCA, MDOH, SCWRS, Washington SWCD, VBWD, Met Council 4) Continue groundwater appropriations permitting program, but implement special restrictions for appropriations in trout stream watersheds. Implementation Team: DNR 5) Develop a mutual groundwater management plan and work with neighboring surface water watershed districts and. communities to protect groundwater outside of VBWD boundaries. Implementation Team: Washington County, VBWD, cities 6) See Action 1 (Septic Systems) of Specific Strategy 6 of Surface Water section. 7) Ensure that critical groundwater recharge areas are not covered by impervious. surfaces. Implementation Team: Cities, VBWD. 8) Develop a nitrate study and BMP program similar to that of South Washington Watershed District and Washington County. Implementation Team: VBWD, Cities, Washington County. Indicators: quality and quantity of groundwater- no declines from current conditions? macroinvertebrates and trout in stream? - -- --- ----- cooperation with other watersheds nitrate chloride volatile organic compounds pesticides fecal coliform bacteria water temperature in stream 3-l~ Section 3 Strategies jor /n-Stream Features 3.5 In-Stream Features As discussed in Section 2, Valley Creek is a rare resource because it supports naturally reproducing populations of native brook trout, rainbow trout, and brown trout. Valley Creek is a world class trout stream in terms of production of trout. Physical habitat is essential to trout populations and other stream dwelling organisms, and it is often a limiting factor in the success of trout reproduction. Goal: Maintain a naturally reproducing trout population by maintaining and improving physical habitat for trout. Current Valley Creek currently has a diverse physical habitat that supports a world Conditions: class trout population. Threats and Land use in the watershed may threaten stream health by introducing Opportunities: excess water and sediments, and increase the temperature of the water in the creek. (Threat) Channel maintenance activities by landowners could enhance trout habitat, but they could actually degrade trout habitat depending on the methodology used. (Threat and Opportunity) Habitat improvement projects could restore areas that have been manipulated to a more natural type channel. (Opportunity) General Strategy: Prevent degradation of in-stream habitat features and use habitat improvement projects to restore habitat in reaches which have been degraded. Specific Strategies (actions are listed below strategies): A) Avoid manipulation of the stream channel and drainage system. (4 Actions) __ __ __ B) Restore manipulated reaches and improve habitat in poor areas,. 2 C) Prevent excessive bank erosion. (2 Action) D) Identify and protect significant in-stream plant populations. (3Actions) E) Identify and protect spawning areas. (5 Actions) F) Ensure road crossings do not obstruct fish passages. (2 Actions) G) Avoid use of in-stream ponds to minimize thermal impacts. (2 Actions) 3-16 Section 3 Strategies for /n-Stream Features Specific ~A) Strategies: B) C) D) E) F) G) Avoid manipulation of the stream channel and drainage system. Restore manipulated reaches and improve habitat in poor areas. Prevent excessive bank erosion. Identify and protect significant in-stream plant populations. Identify and protect spawning areas. Ensure road crossings do not obstruct fish passages. Avoid use of in-stream ponds to minimize thermal impacts. Actions and A1) Manage riparian areas to be wild and allow the stream to meander Implementation (within reasonable limits). Work with DNR to develop a riparian Team(s): management plan. Implementation Team: Riparian landowners, cities, DNR A2) Leave woody debris (even large trees) in the channel, provided they do not cause excessive bank erosion. Work with DNR to determine whether to leave or remove woody debris. Implementation Team: Riparian landowners, cities, DNR A3) Implement an educational campaign to encourage all to do above actions. Implementation Team: Advisory Committee A4) Ensure construction projects do not excessively manipulate channel. Implementation Team: DNR, VBWD, Cities Specific Strategy: A) Avoid manipulation of the stream channel and drainage system. 'B) Restore manipulated reaches and improve habitat in poor areas. C) Prevent excessive bank erosion. D) Identify and protect significant in-stream plant populations. E) Identify and protect spawning areas. F) Ensure road crossings do not obstruct fish passages. G) Avoid use of in-stream ponds to minimize thermal impacts. Actions and B1) Prioritize reaches for habitat improvement projects and determine Implementation most appropriate project methods. Teams}: Implementation Team: Technical Advisory Committee in cooperation - with landowners - B2) Seek grants, design, and implement project for priority reaches. Implementation Team: DNR, VBWD, Washington SWCD, Landowners, TU. 3-17 Section 3 Strategies for /n-Stream Features Specific Strategy: A) Avoid manipulation of the stream channel and drainage system. B) Restore manipulated reaches and improve habitat in poor areas. ~-C) Prevent excessive bank erosion. D) Identify and protect significant in-stream plant populations. E) Identify and protect spawning areas. F) Ensure road crossings do not obstruct fish passages. G) Avoid use of in-stream ponds to minimize thermal impacts. Actions and Cl) Identify and prioritize unstable bank areas using NRI data. Implementation Implementation Team: Washington SWCD, DNR, VBWD, Riparian Team(s): Landowners. C2) Stabilize areas identified in C1. Implementation Team: Washington SWCD, DNR, VBWD, TU. Specific Strategy: A) Avoid manipulation of the stream channel and drainage system. B) Restore manipulated reaches and improve habitat in poor areas. C) Prevent excessive bank erosion. ~-D) Identify and protect significant in-stream plant populations. E) Identify and protect spawning areas. F) Ensure road crossings do not obstruct fish passages. G) Avoid use of in-stream ponds to minimize thermal impacts. Actions and Dl) Identify in-stream plant populations using NRI data. Implementation Implementation Team: Washington SWCD, DNR, SCWRS Team(s): D2) Limit over-harvest of desirable plant populations such as watercress Implementation Team: Streamside landowners D3) Specific Strategy: A) B) C) D) -E) F) G) Prevent disturbance of in-stream plants Implementation Team: Streamside landowners, stream users Avoid manipulation of the stream channel and drainage system. Restore manipulated reaches and improve habitat in poor areas. Prevent excessive bank erosion. Identify and protect significant in-stream plant populations. Identify and protect trout spawning areas. Ensure road crossings do not obstruct fish passages. Avoid use of in-stream ponds to minimize thermal impacts. 3-18 Section 3 Strategies for !n-Stream Features Actions and E1) Map significant spawning habitat collected from NRI data. Implementation Implementation Team: DNR Team(s): E2) Identify specific spawning areas by observation Implementation Team: DNR, U of M biologists, Streamside landowners, stream users E3) Distribute information about sensitivity of spawning areas and winter egg development. Implementation Team: Advisory Committee E4) Establish a rule prohibiting any in-stream activity during reproductive season (October 15 -April 30). Implementation Team: DNR, Cities, VBWD E5) Establish a rule prohibiting development or construction activity within ?feet of stream or drainage system during spawning season. Implementation Team: Cities, VBWD Specific Strategy: A) Avoid manipulation of the stream channel and drainage system B) Restore manipulated reaches and improve habitat in poor areas. C) Prevent excessive bank erosion. D) Identify and protect significant in-stream plant populations. E) Identify and protect spawning areas. ~'F) Ensure road crossings do not obstruct fish passages. G) Avoid use of in-stream ponds to minimize thermal impacts. Actions and Fl) Identify and fix any road crossings which are current obstructions. Implementation Implementation Team: DNR, Cities, VBWD. Team(s): F2) Develop a policy stating new road crossings must be designed to allow fish passage Implementation Team: Cities, VBWD Specific Strategy: A) Avoid manipulation of the stream channel and drainage system. B) Restore manipulated reaches and improve habitat in poor areas. C) Prevent excessive bank erosion. - Dj Identify and protectsignificant in-stream plant populations. E) Identify and protect spawning areas. F,i Ensure road crossings do not obstruct fish passages. 4'G) Avoid use of in-stream ponds to minimize thermal impacts. 3-19 Section 3 Strategies for In-Stream Features Actions and G1) Establish a policy prohibiting in-stream ponds. Implementation Implementation Team: VBWD, Cities Team(s): G2) Encourage landowners with in-stream ponds to eliminate them or modify their design to reduce thermal impacts. Implementation Team: Landowners, VBWD, Advisory Committee Indicators: Number or percentage of sites with trout habitat ratings of good or excellent ® Stream channel and drainage network stability ® Channel type changes (stream geometry) ® Sediment embeddedness ® Number of LWD Percent of channel bank full scour (CWP RWP Handbook Chapter 8) ® Fish and macroinvertebrate IBI 3-20 JAN 19 2000 11 85 FR BARB ENGINEERING 612 832 2601 TO 96514902275 P.01i03 ENGINEERING • ENVIRONMENTAL • INFORMATION TECHNOLOGY si it r age From: ~~i'~~=/V C. i~,~4it/~ ~z~° Regarding: ~~~-~ ~ ~!C ~ ~ /u . ~ Date: ~,// ~ ! ~ ®O O Time: ,~~ ~~' Total pages: Fax number: l ~ ~~ ~ / ~ ~ ' ~ ~ ~ ~ Projec4 number: z.~/~ 2 6 ys~ ,~c L-. 06 a Fax only ._,,,~ Original to follow The information contained is this fax is intended for the use of the individual named above. If this fax is received in error, or if the transmission is incomplete, please call (612) 832-2600 immediately and ask for Additional comments: (~ I7oo w. 7781 ~. p 7360 O+vra tn. ^ S55 w. 2701 St ^ sae w. Supeilor 61 p ~ a w~., Rd p 219 E Du~M5r1 St MN 55035 EtfhL YN `5.198 Hi~DAp, MN 557rB D:Outn, AW 56BQe MI1 A/DCt M/ 18TQ9 ,NASOtsCri Cdy, Ap 65101 Pnone: (612183aA6m FNorr: (612/932,i~i70 Pna~e: (2te) f~e,?165 Tel 7715218 wione_ (7911 se712Q0 I fs7s16se~assi Fac (8T2) B32~71 Far (812186 Fa1c ~Y1B1267~3060 Fix (Y18/727.6050 Far (731) 32T 12TP Fax (519f 83&5323 Received: 7/79/00 '12:03; 6Y2 832 260'1 -> City o-~ Roseville; Page 2 JAN 19 2000 1105 FR BARB FNGTNFFRiNr ~~~ Q~~ ^~ca~ ,-~ ~~~, ~~~.,.,~.- ^' CIGG 1 J r . vJ~i v ,~ ~ /-' /~`,t++7~c4L7 - (/v~ylN tiff. ~ l /UG~v{~ ~~"". l ,TtF~ d..~,.~-~ ®ff ,, .oc.~ i n. 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