BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

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another species or size will be made. At no times will plants of larger size or seed mixes of greater poundsper acre than those originally planted be required. Tree and shrub material that has no easily observable,viable, above ground living material will be considered dead and shall be replaced at no additional cost.Herbaceous plants that fail to show new growth from its root system after one dormant period andwithin the first 9 months after planting will be considered dead and shall be replaced at no additionalcost.All trash and debris shall be removed from the site and disposed of following State and local regulationson an ongoing basis as needed.Long term soil and vegetation maintenance and monitoring provisions extending beyond the 1 yearmaintenance period are included in the BMP Inspection and Maintenance Log and Monitoring Plan forTRPA permit BMPP0000-0000.G. SUCCESS CRITERIA AND PROJECT CONCLUSIONThe intent of the revegetation actions in this project are to have healthy and vigorous, persistent plantsat the end of the plant maintenance period that can survive without irrigation or other maintenanceactions. In addition to The Contractor shall be responsible for meeting or exceeding the followingperformance standards for the revegetation areas:• Erosion – No visible signs of on-going erosion such as rills exists on site.• Plant Survivorship – For each revegetation area, container plants shall have a minimum of 90%survivorship at the end of the maintenance period. At the final inspection, the contractor shall revealwhich of the final plantings consist of the original plant materials installed during the installationphase. If it is determined by the Engineer that 75% of the original plantings did not survive throughthe maintenance period because of Contractor negligence, the Contractor shall provide additionalplantings to achieve 90% of the original plantings and provide a second year of vegetationmaintenance as no additional cost. There are no plant survivorship requirements for transplants;however, the Contractor shall make every effort to establish healthy, vigorous and persistenttransplanted plants.• Soil Surface and Vegetative Cover – Areas of disturbance on the site shall maintain at least 90%cover of mulch during and at the end of the maintenance period. Revegetation areas shall maintain25% vegetative cover at the end of the maintenance period. 25% vegetative cover is consistent withundisturbed areas of native vegetation on similar aspects and slopes adjacent to the project site used asreference plant communities. Cover will be visually estimated by the Inspector. If deemed necessaryby the Engineer, measurements of cover points along transects will be used to verify percentvegetative cover.Prior to final inspection, the Contractor shall clean-up the site to maintain a neat and orderly conditionand be free and clear from debris and discarded material. Clean-up provisions may include but are notlimited to disposal of all debris and recycling of all plant containers and other plastics according to Stateand local regulations, as well as hand-sweeping the access road to prevent vehicle tracking of sediment.Once the final inspection is passed and vegetation is established, temporary BMPs can be removed. TheContractor shall prepare as-built record drawings to document the completed revegetation work ifCHAPTER 5: Soil and Vegetation ManagementTRPA BMP HandbookTRPA Revegetation Plan Example 2012Page 8
substantially different that the permitted plans. Revegetation signage shall remain after the project iscomplete to ensure adequate protection of revegetation areas.TRPA BMP HandbookCHAPTER 5: Soil and Vegetation Management2012 TRPA Revegetation Plan ExamplePage 9
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PREFACEThe Tahoe Regional Planning
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TABLE OF CONTENTSPREFACE...........
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3.5.5 Stormwater Treatment ........
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6.3 Projects 1 to 5 Acres and all C
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8.10.5 Maintenance ................
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Table 8-4: Federal, State and Regio
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Figure 4.3-i: Vegetated Swale .....
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INTRODUCTIONPURPOSE AND USERS OF TH
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Lake Tahoe’s world renowned blue
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Urbanization in the Lake Tahoe wate
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50 percent of the light scattering
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Figure I-c: Impervious Cover versus
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Disconnected impervious areasdrain
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POLLUTANT EFFECT URBAN SOURCES ASSO
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BEST MANAGEMENT PRACTICESHistorical
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Table I-2: Differences in BMP Retro
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CHAPTER 1: URBAN HYDROLOGY1.1 PURPO
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Figure 1-a: Runoff ProcessesTRPA BM
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Although many urbanized areas face
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watersheds to make the necessary es
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Pollutant load estimates are typica
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differ from the following recommend
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Figure 1-b: Hydrologic Processes an
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1.3.3.2 NRCS BMP CALCULATION SPREAD
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1.3.3.3 RATIONAL METHODMODEL SUMMAR
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1.3.3.4 LOAD REDUCTION PLANNING TOO
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in HMS may be event-based or contin
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1.3.3.6 POLLUTANT LOAD REDUCTION MO
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AVAILABILITY AND SUPPORTING DOCUMEN
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TYPICAL LEVEL OF EFFORTHSPF and LSP
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few days to a week of time to revie
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USACE studies recommended use of th
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during the initial site visit, or c
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Figure 2-a: Soil Horizons• Depth
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Evidence of compacted and disturbed
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UNMAPPED ROCK OUTCROPS, STEEP SLOPE
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The primary pollutants of concern o
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On the map use an arrow to delineat
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2.2.3 ADDITIONAL DATA GATHERINGAfte
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and allowable uses. Baseline Land C
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topographic survey will be required
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Table 2-3: Basis of Capability Clas
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Keep your property lean, clean,and
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treatment. This will reduce the mai
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ponds, wetlands, lakes, manmade cha
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2.3.3.2 SOILS HYDROLOGIC REPORTThe
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CHAPTER 3: PERMANENT BMP PLANNINGAN
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STORMWATER TREATMENTRepresents BMPs
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Table 3-1: Waste Management and Mat
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D. STABILIZE STEEP DISTURBED SLOPES
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This infiltration trench collects s
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3.5 PROJECTS 1 TO 5 ACRES AND ALL C
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This Page Blank.TRPA BMP HandbookCH
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unnecessary turf areas and replace
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Table 3-5: Waste Management and Mat
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3.5.2.3 SOIL STABILIZATIONA. RESTOR
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Left: Dripline erosion below a deck
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Pervious concrete parking pad locat
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3.5.5 STORMWATER TREATMENT3.5.5.1 M
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3.6.1.1 JURISDICTIONThese projects
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to perform required inspection and
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3.8.2.4 SHARED ACCESS AND EASEMENTS
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3.8.2.8 STREAM ENVIRONMENT ZONES (S
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Sediment versus erosion:Suspended s
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CONTENTSCHAPTER 4: BMP TOOLKIT ....
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CHAPTER 4: BMP TOOLKIT4.1 HYDROLOGI
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4.1.1.1 PERVIOUS PAVEMENTAlternativ
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• Tree canopy overhead can decrea
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ate determined at the time of insta
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Figure 4.1-a: Pervious ConcreteTRPA
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4.1.1.2 INFILTRATION BASINAlternati
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groundwater, depths to restrictive
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Very few performance monitoring stu
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INSPECTION AND MAINTENANCE ACTIVITI
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4.1.1.3 INFILTRATION TRENCHAlternat
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• Consult the NRCS Tahoe Basin So
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• Alternative Method: Excavate th
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Figure 4.1-c: Infiltration TrenchTR
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Figure 4.1-e: Roof Dripline Planter
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4.1.1.4 SUBSURFACE INFILTRATION SYS
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percent void space compared to 40 p
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• Ensure the surrounding surface
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4.1.1.5 RAIN BARREL AND CISTERNAlte
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• Position the rain barrel or cis
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4.1.1.6 RAIN GARDENAlternative Name
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• To manage high flows, design a
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4.1.1.7 FILTER STRIPAlternative Nam
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• The top of the vegetated filter
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Figure 4.1-i: Vegetated Filter Stri
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LIST OF FIGURESFigure 4.2-a: Slope
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Chapter 4: BMP ToolkitTRPA BMP Hand
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• Obtain and use a road abrasive
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• Mechanical broom sweepers may a
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EFFECTIVENESS CONSIDERATIONSA signi
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for dry basins or infiltration basi
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• For unpaved snow storage areas
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Figure 4.2-a: Slope Stabilization A
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Disadvantages• Not always success
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• Bind together long live branch
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Brush Layering and MattingBrush lay
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Advantages• Reduces the erosion p
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Table 4.2-1: Terracing Inspection a
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Disadvantages• Can be complicated
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• Revegetate the backfilled bench
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Figure 4.2-d: Timber Retaining Wall
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Advantages• Versatile and applica
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Table 4.2-3: Riprap Inspection and
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educe the concentration of runoff,
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Figure 4.2-g: Slope Bottom BenchFig
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• Contour Furrows - relatively de
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APPLICABILITYAll roads, driveways,
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Stormwater runoff from a paved park
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Figure 4.2-k: Grading for Sheet Flo
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INORGANIC MULCH:• Areas where org
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• Stockpile and use existing orga
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The surface under the raised decksh
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Figure 4.2-l: Rock Armor - Elevated
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Clustered boulders used for parking
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• Helps to protect wildlife.• H
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EFFECTIVENESS CONSIDERATIONSA prope
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Improper storage of hazardous mater
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• Try to use the entire product b
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facilities must be equipped with ap
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• Dispose of it properly• Be a
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Disadvantages• Additional resourc
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• All hay, cubed hay, straw, mulc
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• Sanitary sewer regulations gene
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APPLICABILITYAll vehicles, includin
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• Do not perform other vehicle or
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LIST OF FIGURESFigure 4.3-a: Curb B
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APPLICABILITY• Culverts are appli
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deterioration. The inspection crew
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APPLICABILITY• Curb and gutters a
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INSTALLATION CONSIDERATIONS• Inst
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Figure 4.3-b: Rolled CurbChapter 4:
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Advantages• Prevents the discharg
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Table 4.3-2: Storm Drain Inspection
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Advantages• Prevents scour that m
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Figure 4.3-c: Outlet ProtectionChap
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• The structure can be designed t
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INSTALLATION CONSIDERATIONS• Disc
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Advantages• Assists in the contro
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Figure 4.3-e: Slotted Channel Drain
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Advantages• May be less expensive
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Table 4.3-5: A/C Swale Inspection a
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• Prevents property damage, slope
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Figure 4.3-g: Subsurface DrainChapt
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abrasives applied during the winter
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Table 4.3-7: Rock Lined and Vegetat
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Figure 4.3-i: Vegetated SwaleChapte
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Check dams installed in water sprea
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• Design check dams perpendicular
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CONTENTS4.4 Stormwater Treatment ..
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4.4 STORMWATER TREATMENTThe primary
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4.4.1.1 WET BASINAlternative Names:
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• Surcharge storage above the wet
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Table 4.4-1: Wet Basin Inspection a
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Figure 4.4-a: Wet Basin (Concept Dr
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4.4.1.2 BIOSWALEAlternative Names:
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• Consider incorporating trees or
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Figure 4.4-b: Bioswale (Linear Basi
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4.4.1.3 DRY BASINAlternative Names:
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• Drainage design standards for t
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Figure 4.4-c: Detention BasinTRPA B
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4.4.2 FLOW THROUGH TREATMENTFlow-th
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4.4.2.1 DROP INLET INSERTAlternativ
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INSTALLATION CONSIDERATIONS• Refe
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4.4.2.2 TRASH RACKAlternate Names:
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4.4.2.3 BAFFLED VAULTAlternative Na
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• Ensure that site conditions all
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4.4.2.4 HYDRODYNAMIC SEPARATORAlter
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• Most units are designed to be c
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4.4.2.5 MEDIA FILTERAlternate Names
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Cartridge Filter• Cartridge filte
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• Vent the system as for undergro
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4.4.2.6 SEDIMENT TRAPAlternative Na
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INSPECTION AND MAINTENANCE• Regul
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Figure 4.4-e: Sediment TrapTRPA BMP
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CONTENTS4.5 Temporary BMPs for Cons
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4.5 TEMPORARY BMPS FOR CONSTRUCTION
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concrete washouts and stockpiles sh
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4.5.1.1 CONSTRUCTION PLANNING AND S
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• Measures to minimize the potent
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4.5.1.2 CONSTRUCTION BOUNDARY FENCI
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Figure 4.5-a: Construction Boundary
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4.5.1.3 DEWATERINGDESCRIPTIONDewate
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Figure 4.5-b: DewateringTRPA BMP Ha
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• Use this settled water to fill
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4.5.1.4 CLEAN WATER DIVERSIONAltern
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• Avoid disturbing aquatic specie
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• Pipe slope drain: A rigid pipe,
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Stream Isolation Techniques:• Tur
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Figure 4.5-f: Water DiversionTRPA B
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4.5.1.5 VEGETATION PROTECTIONAltern
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• Growing Space: Provide spacing
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Figure 4.5-g: Vegetation Protection
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4.5.1.6 TEMPORARY SANITATION FACILI
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4.5.1.7 DUST CONTROLAlternate Names
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• Blanket with geotextiles or veg
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4.5.1.8 VEHICLE INGRESS EGRESS MANA
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• If possible, re-use swept or va
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4.5.1.9 WINTERIZATIONDESCRIPTIONBet
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INSPECTION AND MAINTENANCEEnsure th
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4.5.1.10 CONSTRUCTION STAGINGAltern
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4.5.1.11 MATERIAL HANDLING STORAGE
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• Ensure that current Material Sa
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4.5.1.12 TOPSOIL SALVAGEAlternative
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• If topsoil will not be used for
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4.5.1.13 CONCRETE/BENTONITE MANAGEM
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Figure 4.5-i: Concrete Washout Stat
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4.5.1.14 STOCKPILE MANAGEMENTAltern
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Figure 4.5-j: Stockpile ManagementT
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4.5.2 EROSION AND SEDIMENT CONTROLR
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4.5.2.1 SWEEPINGDESCRIPTIONDuring c
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4.5.2.2 DRAIN INLET PROTECTIONAlter
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inches. Take care to ensure that no
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Figure 4.5-k: Drain Inlet Protectio
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4.5.2.3 FIBER ROLLAlternative Names
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• Adjust spacing of fiber rolls a
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Figure 4.5-l: Fiber RollsTRPA BMP H
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4.5.2.4 SILT FENCEAlternative Names
Page 492 and 493: • Turn the fabric uphill at the e
Page 494 and 495: Figure 4.5-m: Silt FenceTRPA BMP Ha
Page 496 and 497: 4.5.2.5 EROSION CONTROL BLANKET SYS
Page 498 and 499: structures mark the boundaries of t
Page 500 and 501: Figure 4.5-p: Anchoring Geotextiles
Page 502 and 503: 4.5.2.6 HYDROMULCH, TACKIFIER, AND
Page 504 and 505: INSPECTION AND MAINTENANCE• Hydro
Page 506 and 507: 5.2 SOILSoil is a complex living sy
Page 508 and 509: Tilling green wood chips intothe so
Page 510 and 511: areas such as SEZs and in shorezone
Page 512 and 513: Large boulders provide permanent ve
Page 514 and 515: To address this TRPA’s Regional P
Page 516 and 517: to apply ½ inch of water. Water yo
Page 518 and 519: Pesticides can be degraded by sunli
Page 520 and 521: 5.3.2.5 FIRE DEFENSIBLE SPACEFire d
Page 522 and 523: etween them. For example, shrubs wi
Page 524 and 525: 5.4 PROJECT SCALE REQUIREMENTSSoil
Page 526 and 527: 5.4.1.5 PROJECT INSTALLATIONA. CONT
Page 528 and 529: percent vegetative cover, soil surf
Page 531 and 532: TRPA Revegetation Plan TemplateSoil
Page 533 and 534: (c) GRADING AND SLOPE SHAPINGDescri
Page 535 and 536: TRPA Revegetation Plan ExampleSoil
Page 537 and 538: • All machinery must be clean bef
Page 539 and 540: Common NameScientific NameScotchbro
Page 541: during dry weather. All debris, roo
Page 545: TRPA BMP HandbookCHAPTER 5: Soil an
Page 548 and 549: Fertilizer Management PlanProject N
Page 550 and 551: IV. MONITORINGSurface and groundwat
Page 552 and 553: I. PROJECT AND SITE DESCRIPTIONGold
Page 555: Table 5-1: Description of Revegetat
Page 558 and 559: SITE TYPE RECOMMENDED SPECIES LISTS
Page 560 and 561: SITE TYPE RECOMMENDED SPECIES LISTW
Page 562 and 563: CHAPTER 5: Soil and Vegetation Mana
Page 564 and 565: TRPA APPROVED PLANT SPECIES ATTRIBU
Page 566 and 567: TRPA APPROVED PLANT SPECIES ATTRIBU
Page 568 and 569: CHAPTER 5: Soil and Vegetation Mana
Page 570 and 571: • Section 6.2 describes methods f
Page 572 and 573: equirements. At a minimum, training
Page 574 and 575: Vactor equipment removes sediment a
Page 576 and 577: Industrial Properties, Marinas, and
Page 578 and 579: • Rinse the rock with hose water
Page 580 and 581: EXAMPLE INSPECTION AND MAINTENANCE
Page 582 and 583: MONITORING PLAN TEMPLATE1. TITLE PA
Page 584 and 585: MONITORING, INSPECTION, ANDMAINTENA
Page 586 and 587: Sample Site123 Main StreetSouth Lak
Page 588 and 589: 3. MONITORINGIn 2011, South Lake Ta
Page 590 and 591: ATTACHMENT BWATER QUALITY DATA
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ATTACHMENT DINSPECTION AND MAINTENC
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• Discharge of stormwater from in
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PAVING SINGLE FAMILY RESIDENTIAL PR
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TRPA Shorezone permit (www.trpa.org
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CHAPTER 8: SHOREZONE PROTECTIVESTRU
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technical guidance on structural an
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Pope has developed a shorezone miti
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ADVANTAGES• Protect parcel develo
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Table 8-3: Categorical Classificati
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generate observable changes in the
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Table 8-5: The General Geomorphic C
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8.1.8.2 TOLERANCE DISTRICT AND BACK
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Figure 8-e: Option 2—Backshore De
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Scenic Resources and project compli
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8.2 BULKHEADS AND LAKE WALLS8.2.1 O
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oth the beach immediately fronting
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Like all BMPs, bulkheads and lake w
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For a bulkhead located such that th
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Figure 8-i: Typical Lake Wall (Grav
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Table 8-9: Advantages and Disadvant
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maintains its position under wave s
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8.3.4 INSTALLATIONAs with bulkheads
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Table 8-11: Advantages and Disadvan
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V t ≥ 5R c2(Equation 4.1)Where:Vt
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8.5 BEACH NOURISHMENT AND REPLENISH
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of not being able to protect the ba
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• The material must be washed to
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nourishment will be determined by m
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8.7 BREAKWATERS8.7.1 OVERVIEWBreakw
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The procedure for determining armor
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8.8 SHOREZONE VEGETATION8.8.1 OVERV
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vegetation. Protecting a tree from
Page 658 and 659:
Overall, dredging can be either a p
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The Pneuma pump is a piece of dredg
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nature of the project and the poten
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8.10 TURBIDITY CURTAINS8.10.1 OVERV
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weights or connected firmly to sand
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Figure 8-o: Turbidity Curtain Desig
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Aquatic invasive species (AIS) also
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tanks into a sewage retention and/o
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• A common problem with recreatio
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8.12 BOAT RAMP CONSTRUCTION AND VEH
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amp at the change of grade. A V-gro
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Figure 8-p: Boat Ramp DesignTRPA BM
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Table 8-22: Overview of Geotechnica
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8.14 SHOREZONE PROTECTIVE STRUCTURE
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8.14.2 ADDITIONAL CONSIDERATIONS FO
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some designated boundary or sphere
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spawning grounds and juvenile nurse
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Marine Science, School of Geoscienc
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Osborne, R.H., et. Al. (1985). Sedi
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8.16 APPENDICES8.16.1 DESIGN CALCUL
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Figure 8-r defines the primary wave
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8.16.1.2 WAVE RUN-UP FORMULA FOR BA
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• Use Equation 16.10 to calculate
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Figure 8-u: Design Wave CasesTRPA B
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Figure 8-v: Wave Setup and Run-Up f
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Alternative methods of wave calcula
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GLOSSARYAccretionMay be either a na
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eaches have no berm, others have se
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DensityMass (in kg) per unit of vol
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Fire Defensible SpaceRefers to the
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Common terms related to land covera
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PermeabilityThe property of a bulk
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ScourRemoval of underwater material
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SlopeThe degree of inclination to t
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Technical Advisory Committee (TAC)C
Page 730 and 731:
ACRONYMSACES - Automated Coastal En
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NPS - Nonpoint SourceNRCS - Natural
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BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

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