Day 2 I&M Training 2011
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Day 2 I&M Training 2011

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All about maintenance of stormwater best management practices.

All about maintenance of stormwater best management practices.

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    Day 2 I&M Training 2011 Day 2 I&M Training 2011 Presentation Transcript

    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Stormwater BMP Maintenance Importance • Maintain the function of the BMP • Maintain environmental and habitat benefits • Maintain appearance-public acceptance • Prevent costly future repairs
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Developing a Maintenance Strategy Facility Inventory • Obtain maintenance plan and design documents • Visit the site to review conditions, access • Contact the local governmental jurisdiction
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Developing a Maintenance Strategy Work Plan • Review facility inventory • Review maintenance guides • Create a list of activities, equipment needed and cost • Review plan with owner and local governmental officials • Modify or create checklist and record keeping procedures • Assign and educate personnel • Implementation and evaluation
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Inspections Location • Upstream Parking Lots & Paved Areas • Upstream Unpaved Areas • Forebays • Main Treatment Area • Storm Sewer Pipes and Structures
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Inspections Frequency • Weekly during establishment period • Weekly/monthly after establishment period • Complete when doing regular site maintenance • Some inspections should occur during rainfall • Some inspections should occur 24 hours after rainfall Weeds and invasive species a few months after planting Immediately after planting During rain eventAfter establishment period
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Inspections Visual Assessment • Trash and debris • Sediment accumulation • Bare soil and erosion • Plant coverage • Plant health Trash and debris Sediment accumulation Plant coverage Erosion Plant Health
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Inspections Visual Assessment • Soil moisture and percolation • Weeds and invasive species • Animal and insect damage • Mulch condition Weeds and invasive species 2 months after planting Soil percolation Animal damage Mulch
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Periodic Inspections Frequency • Annually or as needed • Increase frequency to monitor identified potential problems • During storm events
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Periodic Inspections Visual Assessment • Storm sewer pipe and structure condition • Dam, embankment, overflow weir condition • Stormwater Flow
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Periodic Inspections Testing and Surveys • Soil testing • Soil profile • Stormwater flow • Detention volume • Water testing
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Soil Stabilization • Establishment Period • Management Period • Repairs
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Clean Up – Trash and Debris • Location • Equipment • Frequency • Disposal
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Clean Up – Sediment Removal • Location (Upstream, Forebay, Structures, P onding & Treatment Area) • Equipment • Method (Avoid heavy equipment of select soils) • Frequency • Disposal • Amount (All or partial)
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Plant Density • Facility age • Plant loss • Season • Plant spacing Year 1 Year 2 Year 4
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Invasive Species Removal –General • Importance • Frequency • Environmentally sensitive practices • Plant identification-use photo guides
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Invasive Species Removal –By Hand • Method • Frequency • Weed species knowledge • Clean Up (removal of Biomass)
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Invasive Species Removal –Mowing • Equipment • Method • Height • Frequency • Edging • Clean Up (removal of Biomass)
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Invasive Species Removal –Edging & Trimming • Purpose • Equipment • Method • Frequency • Clean Up (removal of Biomass)
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Invasive Species Removal –Burning • Benefits • Local regulations • Method (Spot and Large Area) • Frequency
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Invasive Species Removal –Chemical • Integrated Chemical Management • Product Selection • Timing • Method/Application
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Invasive Aquatic Species Removal • Cattails • Reed Canary Grass • Algae
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Invasive Woody Species Removal • Location • Equipment • Method • Frequency
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Plant Maintenance • Aesthetic Goals • Frequency • Plant Characteristics • Watering • Replacements • Disease
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Soil Amendments • Type (Organic vs Inorganic • Composition • Frequency • Application Rate • Adjacent Areas
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Regular Maintenance Procedures Pest Management • Animal damage • Insects
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Stormwater BMP Maintenance Resources • APWA MARC Maunal of Best Management Practices for Stormwater Quality, Mid America Regional Council, August 2009 • “Maintaining Stormwater Systems: A Guidebook for Private Owners and Operators”, Northern Virginia Regional Commission, January 2007 • “Practically Easy Landscape Maintenance: A Care Manual for Natural Drainage Systems”, Seattle Public Utilities, 2005 • “Landscape Guide for Stormwater Best Management Practice Design”, Metropolitan St Louis Sewer District, 2009 • “A Citizen’s Guide to Maintaining Stormwater Best Management Practices”, Lake County Stormwater Management Commission, October 2004 • “Stormwater Wet Pond and Wetlands Management Guidebook”, EPA 833-B-09-001 February 2009 • Stormwater BMPs Selection, Maintenance & Monitoring, Gordon England and Stuart Stein, July 2007
    • Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 Stormwater BMP Maintenance Questions?
    • Plant Maintenance for BMPs Jason Dremsa- Applied Ecological Services Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • Overview • Updates to the BMP Manual Maintenance Tables • First Year establishment Priorities • Second & Third Year Establishment Priorities • Continuing Maintenance Issues • Resources for Maintenance (BMP Manual) Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • BMP Manual Maintenance Updates Tables – Section 8 Typical Maintenance Activities: • Rain Garden (8.1) • Bioretention Cell (8.4.6) • Extended Dry Detention Basin (8.12.6) Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • Activity Frequency Establishment (1-3yrs) Watering plants (seeded areas up to 8 weeks, plugs and container plants in drought) 1” per week as needed Weed control (flail mow, string-trim, selective/preemerg herbicides, mechanical removal , foliar herbicide) Monthly Remove litter and debris (trash, leaves, sand, mower discharge) Monthly Monitor & repair erosion (stabilize soil, replace plants, secure edging) Monthly Check for standing water (longer than design, any puddles, saturated soil) Monthly Add mulch (moisture & weed control with plugs/containers, 3” or less) Annually Inspect drainage area (parking lot sweeping, open dumpsters, etc) Annually Replace dead plants (use design species/size: overseed, install deep cell plugs, maintain density) Annually, as needed Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • Activity Frequency Establishment (3yrs+) Vegetation cleanup (string-trim, spot spray, prescribed burn, prune) Annually, spring or fall Evaluate plant composition (woody invasion, grass/flower ratio, “right plant right place”) Annually Sediment removal, erosion control (pretreatment structures: forebay, check dams, swale) Annually Address animal damage (beaver dams, muskrat burrows, deer rubs) Annually Verify structural component function (v-notch weir, check dams, outlet protection, area inlet, valve or gate lube, underdrain, inflows) Annually Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • Activity Frequency Native Vegetation Swale String trim vegetation to minimize disturbance Annually Inspect for erosion in flow lines and slopes Annually Bioretention cell Evaluate soils for nutrients, physical make-up Annually Fortify edging material/adjacent landscape beds Annually Typical maintenance activities are outlined to provide a basis for scheduling and planning work but should not be considered wholly comprehensive or definitive. Activities and frequencies will vary depending on site conditions and expectations related to adjacent land use. Some activities shown may continue through the establishment and maintenance phases. It’s important to use adaptive management based on the goals of the practice and to integrate evaluation and assessment into a long-term maintenance plan. •Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • First Year/Establishment Priorities: Erosion Control: • Rills • Gullies Sheet Flow or Concentrated? Annual Weeds: ID, removal, examples… Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • First Year/Establishment Priorities: Annual weeds – Definition: • Annual plants complete their life cycle in one year. • A weed is a plant out of place. Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • First Year/Establishment Priorities: Removing Annual weeds • Annual weeds should be cut or broken off at the base to limit soil disturbance; disturbance after planting can lead to erosion and more weeds. Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • First Year/Establishment Priorities: Common Annual Weeds (in Johnson County/Kansas City) List: •ANNUAL BROAD LEAF WEEDS : •common sunflower •mares tail •giant ragweed •common ragweed •cocklebur •lambs quarter •prickly lettuce •pigweed •velvet leaf •ANNUAL GRASS WEEDS: •fox tail (green, yellow, & giant) Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • Annual Broad Leaf Weed Control : common sunflower Helianthus annuus First Year/Establishment Priorities: •Found in cultivated land, pastures, and BMPs Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •2 to 10 feet tall
    • Annual Broad Leaf Weed Control : mares tail Conyza canadensis First Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •1 to 6 feet tall •Found in pastures, roadsid es, and BMPs
    • Annual Broad Leaf Weed Control : giant ragweed Ambrosia trifida First Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •12 to 18 feet tall on fertile, moist soils; 4 to 8 feet in less fertile, drier areas •Found mostly on fertile, moist soils, especially bottomlands
    • Annual Broad Leaf Weed Control : common ragweed Ambrosia artemisiifolia First Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •Found in old pastures, BMPs, r oadsides, and cultivated land •1 to 4 feet tall
    • Annual Broad Leaf Weed Control : cocklebur Xanthium strumarium First Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •2 to 4 feet tall •Found in cultivated fields, abandoned land, poor pastures, and roadsides
    • Annual Broad Leaf Weed Control : lambs quarter Chenopodium album First Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •3 to 4 feet tall •Found in cultivated crops
    • Annual Broad Leaf Weed Control : prickly lettuce Lactuca serriola First Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •2 to 6 feet tall •Found in roadsides, fen ce rows, and BMPs
    • Annual Broad Leaf Weed Control : pigweed Amaranthus retroflexus First Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •up to 6 feet tall •Found in cultivated fields, yards, fence rows, and BMPs
    • Annual Broad Leaf Weed Control : velvet leaf Abutilon theophrasti First Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •often 6 to 8 feet tall •Found principally in soybean and corn fields but occasionally in gardens, and along fence rows
    • Annual Broad Leaf Weed Control : hedge parsely First Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •1-3 feet tall •Found in BMPs, edges of woods, and low shady places
    • Annual Grass Weed Control : fox tail (green, yellow, giant) Setaria spp. First Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •Typically 1 to 4 feet tall •Found in cultivated crops, gardens, turf
    • Second &Third Year/Establishment Priorities: • Replacement Planting • Inlet, forebay, repair/cleaning, ? • On-going Erosion Problems? • Other Issues -hydrology? -photo of Blue Valley Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • Second &Third Year/Establishment Priorities: Biennial weeds– • A plant out of place that normally requires two seasons to complete its life cycle, growing usually as a rosette in the first season and producing flowers and fruits and then dying in the second season. Perennial weeds – • A plant out of place that lives for more than two years, retuning from their root-stock; rather than seeding themselves as an annual plant does. Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • Second &Third Year/Establishment Priorities: • Removing Biennial weeds: Cut stalk before seed production, Pull (with out disturbing soil) kill Rosette with herbicide. • Removing Perennial weeds: Spray with herbicide or Pull (with out disturbing soil) and/or burn with prescribed fire (if permitted). Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • Second &Third Year/Establishment Priorities: Common Biennial & Perennial Weeds (in Johnson County/Kansas City) List: •BIENNIAL WEEDS: •Queen Anne’s lace •musk thistle •Sweet clover? •PERENNIAL WEEDS: •curly dock •red clover •white clover •field bind weed •johnsongrass -photo •sericea lezpedeza - photo •reed canary grass Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • Biennial Broad Leaf Weed Control : Queen Anne’s lace Daucus carota Second & Third Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •1 to 3 feet tall •Found in meadows, past ures, and roadsides; not in cultivated fields
    • Biennial Broad Leaf Weed Control : musk thistle Carduus nutans Second & Third Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •Noxious Weed •3 to 6 feet tall •Found in pastures, mead ows, and BMPs
    • Perennial Broad Leaf Weed Control : curley dock Rumex crispus Second & Third Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •1 to 4 feet tall •Found in pastures, roads ides, new hay fields, and BMPs
    • Perennial Broad Leaf Weed Control : red clover Trifolium pratense Second & Third Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •1 -3 feet tall •Found in disturbed sites
    • Perennial Broad Leaf Weed Control : white clover Trifolium repens Second & Third Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •Up to .5 feet tall •Found in disturbed sites and lawns
    • Perennial Broad Leaf Weed Control : field bind weed Convolvulus arvensis Second & Third Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •Noxious Weed •2 to 7 feet long, twining or spreading over ground •Able to persist and spread in all noncultivated areas
    • Perennial Broad Leaf Weed Control : serecia lezpedeza Lespedeza cuneata Second & Third Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •Noxious Weed •1 to 6 feet tall •Found in disturbed prairies, pastures, and along road sides
    • Perennial Grass Weed Control : reed canary grass Phalaris arundinacea Second & Third Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •Noxious weed •2-6 feet tall •Moderate moisture, moist, to wet; shores, marshes
    • Perennial Grass Weed Control : johngrass Sorghum holepense Second & Third Year/Establishment Priorities: Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011 •Noxious weed •1-1/2 to 6 feet or •more tall •Found in overflow bottoms and disturbed sites
    • Resources for Maintenance of Stormwater Management BMPs • “Maintaining Stormwater Systems: A Guidebook for Private Owners and Operators”, Northern Virginia Regional Commission, January 2007 • “Practically Easy Landscape Maintenance: A Care Manual for Natural Drainage Systems”, Seattle Public Utilities, 2005 • “Landscape Guide for Stormwater Best Management Practice Design”, Metropolitan St Louis Sewer District, 2009 • “Georgia Stormwater Management Manual, Volume 2: Technical Handbook”, August 2001, Appendix E & F • “Missouri Pond Handbook”, Missouri Dept of Conservation 2008 • “Aquatic Plants and Their Control”, Kansas State University Agricultural Experiment Station and Cooperative Extension Service 2005 • “Horticulture Report: Buffalo Grass Lawns” (MF 658), Kansas State University Agricultural Experiment Station and Cooperative Extensive Service, Sept 2001 • “Stormwater Treatment: Assessment and Maintenance”, University of Minnesota, St Anthony Falls Laboratory 2010 (http://stormwaterbook.safl.umn.edu/) • “Stormwater Wet Pond and Wetlands Management Guidebook”, EPA 833-B-09-001 February 2009 Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011
    • Questions Installation and Maintenance of Stormwater Treatment BMPs Workshop, December 2011