Recommendations

Surface Water Management Project UpdateSurface Water Management Program and Development Code Amendments

CPW Team: KC McFerson, Alex Page, Ben Protzman, Michael Varien, Casey Weisinger

AgendaProject Background and Scope

Program Goals, Strategies, and Actions

Development Code Recommendations

Roles and Responsibilities

Q&ABob is going to give a short 2Where Do We Fit In ?

Project Scope & GoalsProtect water quality through Low Impact Development standards

Provide an education and outreach program around water quality and best management practices

Develop a sustainable Surface Water Management Program

Meet TMDL obligations

Allow Low Impact Development within development code.Outreach and inform community about water quality and pollution sources.Develop a program to maintain and enhance riparian corridor and reduce surface water pollution.Most importantly, these are previous obligations that the cities committed to.4Method of ApproachWork Plan February Kick-off meetingBrainstorming session March meetingRecommendations April meetingFinal Touch Base - June5AgendaProject Background and Scope

Program Goals, Strategies, and Actions

Development Code Recommendations

Roles and Responsibilities

Q&AGoals, Strategies, ActionsGoalsGeneral statements, express the broad focus

ActionsSpecific steps to reach objectives

StrategiesMeasurable,action-oriented, and time-focused

Riparian ProtectionA riparian area is the area bordering a water body that is a transition zone between aquatic and terrestrial ecosystems.

A riparian corridor includes the water body, wetlands, and adjacent land, i.e. the stream bank.

Protecting this zone is critical for improving water quality and wildlife habitat.

Benefits Riparian AreasA riparian area is the area bordering a water body that is a transition zone between aquatic and terrestrial ecosystems.

A riparian corridor includes the water body, wetlands, and adjacent land, i.e. the stream bank.

Protecting this zone is critical for improving water quality and wildlife habitat.

Stream shade from trees and other plants at the top of slope provide fish habitat and reduce algae growthTree and shrub roots help filter out pollutants from water runoff on banks and prevent soil erosionRiparian woodland plants provide needed shade, shelter, and food for wildlifeRiverRiparian AreaGoalsLead Community Effort to Improve and Maintain Water Quality and Water Resource Protection.

Increase Community Engagement and Awareness of Water Quality Issues.

Restore, Maintain, and Enhance Riparian Corridor Vegetation to Ensure a Healthy River for Humans and Wildlife.

Goal 1StrategiesActionsWhoTimelineStrategy 1.1: Lead the community by example in implementing strategies to improve water qualityAction 1.1.1 Adopt LID code amendments.City CouncilMonth 2Action 1.1.2: Prioritize the use of LID strategies in public projects.City staff and contractorsOngoingAction 1.1.3: Incorporate an interpretive riparian trail into the Parks Master Plan.City Manager and staff Fall 2013-Feruary 2014Strategy 1.2: Stay up-to-date on current water quality status, activities, and needs.Action 1.2.1: Attend and participate in quarterly DEQ TMDL meetings and report back to City Council on important updates and activities.City Manager and staffOngoing/3rd Wednesday of the month, every 3 monthsStrategy 1.3: Establish partnerships to help implement the surface water management programAction 1.3.1: Identify opportunities to partner with regional organizations and agencies and maintain communication with key contacts at these organizations. City ManagerQuarterlyGoal 2StrategiesActionsWhoTimelineStrategy 2.1: Raise awareness of human impacts on water quality and best practices for limiting those impactsAction 2.1.1: Apply stormwater stencils to sewer drains.Public Works DepartmentMonth 3Action 2.1.2: Distribute educational materials at public and private facilities.City staffBegin June 2013Action 2.1.3: Launch and maintain informational website on which to provide public access to water quality information.City Manager and WebmasterMonth 3 Strategy 2.2: Engage community through interpretative facilities and community events Action 2.2.1: Create an interpretive riparian trail.City, JSWCD, and SBWCYears 3-5Action 2.2.2: Integrate water quality information and activities into existing community activities and events.City staffEach January or February Action 2.2.3: Partner with local schools to incorporate an activity in which youth grow and plant vegetation.City staffBased on following year curriculum planningAction 2.2.4: Educate and inform residents about hazardous waste impacts, safe removal, and disposal practices.Public Works DirectorBiannual, in accordance with event datesGoal 3StrategiesActionsWhoTimelineStrategy 3.1: Preserve and enhance native vegetation on public propertyAction 3.1.1: Incorporate the planting and preservation of riparian vegetation into Parks Master Plan for public properties along Rogue River.City ManagerFall 2013-Feruary 2014Strategy 3.2: Preserve and enhance native riparian vegetation on private propertyAction 3.2.1: Collaborate with program partners to provide onsite vegetation consultation or education to property owners.City and program partnersYear 1 and ongoingAction 3.2.2: Partner with local nurseries to tag and advertise native plants.City staffMonth 3Action 3.2.3: Providenative and riparian-friendly plant resources on website.City staffOngoing beginning mid June 2013Questions?AgendaProject Scope and Guidelines

Program Goals, Strategies, and Actions

Development Code Recommendations

Roles and Responsibilities

Q&A

Low impact development is landscape design to manage storm water by mimicking the natural hydrology of a site.

Intent is toCapture and store Filter pollutionBalance water flow

Source: Oregon Department of Environmental QualityWhat is LID?

In the greater scheme of things, LID helps to provide a balance between urbanization and nature. 16

Permeable pavementAlternatives to curbsRain gardensRestoring native vegetation

Photo Credits: Oregon State University, LID Academy, and DEQLID ExamplesTargeted LID CategoriesClustered developmentMinimize impervious surfacesRain gardensCompost bins/mulchingFilter/buffer stripSwalesConservation DesignLow Impact LandscapingFiltration

Conservation DesignCluster development Typically involves putting buildings closer together on a smaller lot, with the rest of the lot remaining open space. The idea behind cluster development is to limit urban sprawl and create more expansive open space/greenways, which can better provide for wildlife as well as prevent the flow of pollutants from urban environments to streams.

Minimize impervious surfaces Minimizing imperviousness is a very general LID strategy, but it is important for breaking up the urban environment and reducing stormwater runoff, which may contain pollutants.

Low Impact LandscapingRain gardens -- A sunken garden bed that collects and treats stormwater runoff, primarily from rooftops, driveways, sidewalks, parking lots, and streets.

Composting

FiltrationFilter strips -- Vegetated surfaces that are designed to treat sheet flow from adjacent surfaces. Filter strips function by slowing runoff velocities and filtering out sediment and other pollutants, and by providing some infiltration into underlying soils.

Swales -- A vegetated, open-channel management practice designed specifically to treat and attenuate stormwater runoff for a specified water quality volume.

18Would it be helpful to cover the different categories so we can explain that amendments are meant to cover a variety of strategies that allow for low impact development? Or do they just need to know the changes and not why we chose them?Targeted LID CategoriesPermeable pavementsRain barrelsRetention pondsCurb-contained bioretentionLevel spreader

InfiltrationRunoff StorageRunoff Conveyance

InfiltrationPermeable pavements -- A system consisting of strong structural materials containing regularly interspersed void areas, which are filled with pervious materials such as gravel or sod.

Runoff StorageRain barrels -- A system that collects and stores rainwater from your roof that would otherwise be lost to runoff and diverted to storm drains and streams.

Retention Ponds -- Constructed basins that have a permanent pool of water throughout the year (or at least throughout the wet season). Ponds treat incoming stormwater runoff by allowing particles to settle and algae to take up nutrients.

Runoff ConveyanceCurb-contained bioretention -- A series of smaller, depressed vegetated collection basins that retain stormwater runoff from parking lots, residential streets or large impervious commercial areas. These depressions are often surrounded by curbing to maximize storage during large events, and often include an over-flow outlet or underdrains to conventional stormwater systems. Inflow is often dispersed via a gravel diaphragm or level spreader to disperse flow evenly into the facility.

Level spreader -- A level, graded area designed to slow and spread concentrated runoff and release it as sheet flow to a stabilized area. The level spreader outfall can be stabilized by vegetation, erosion control blankets or a combination of wood timber and gravel.19Development Code RecommendationsThe 6 LID CategoriesConservation DesignInfiltrationFiltrationRunoff StorageRunoff ConveyanceLow Impact LandscapingSection 17.16.100 PurposeThe Single-Family Residential District is intended to promote the livability, stability and improvement of the Citys neighborhoods. This chapter provides standards for the orderly expansion and improvement of neighborhoods based on the following principles:Make efficient use of land and public services, and implement the Comprehensive Plan, by providing minimum and maximum density standards for housing.Accommodate a range of housing needs, including owner-occupied and rental housing.Provide for compatible building and site design at an appropriate neighborhood scale.Reduce reliance on the automobile for neighborhood travel and provide options for walking, and bicycling.Provide direct and convenient access to schools, parks and neighborhood services.Encourage and allow development with minimal impact on the natural environment to ensure viable neighborhoods for years to come.

Development Code RecommendationsThe 6 LID CategoriesConservation DesignInfiltrationFiltrationRunoff StorageRunoff ConveyanceLow Impact LandscapingSection 17.60.100 Parking - - Design RequirementsA. Surfacing: Except for single-family dwellings, all surfacing shall be a minimum of two inches thick and may be of Class b asphaltic concrete surface or permeable pavement.

Development Code RecommendationsThe 6 LID CategoriesConservation DesignInfiltrationFiltrationRunoff StorageRunoff ConveyanceLow Impact LandscapingSection 17.24.200 Special Standards for Certain UsesZero-lot line (single family courtyard home).1. Setbacks Adjacent to Non-Zero Lot Line Development. When a zero-lot line house shares a side property line with a non-zero lot line development, the zero-lot line building shall be setback from the common property line by a minimum of 5 feet, except where the adjacent landowners use a shared driveway;

Development Code RecommendationsThe 6 LID CategoriesConservation DesignInfiltrationFiltrationRunoff StorageRunoff ConveyanceLow Impact LandscapingSection 16.12.020 StreetsT. Cul-de-sac. A cul-de-sac shall be as shortas possible and shall in no event he more than four hundred feet long nor serve more than twelve single-family dwellings.

All cul-de-sacs shall terminate with either a circular or hammerhead turnaround.

Section 16.12.020 StreetsRadius for turnaround at end ofCul-de-sac 50 45 feet 42 35 feet

Development Code RecommendationsThe 6 LID CategoriesConservation DesignInfiltrationFiltrationRunoff StorageRunoff ConveyanceLow Impact LandscapingSection 17.16.200 Special Standards for Certain Uses***C. Manufactured Home Park.***4. Perimeter Landscaping. When manufactured homes are oriented with their back or side yards facing a public right-of-way, the City may require installation of fencing and planting of a 15-foot wide landscape buffer between the right-of-way and a manufactured home park for the privacy and security of residents or aesthetics of the streetscape. If a landscape buffer is necessary, the 15-foot wide landscape buffer may be a swale or rain garden and shall include native vegetation.Development Code RecommendationsThe 6 LID CategoriesConservation DesignInfiltrationFiltrationRunoff StorageRunoff ConveyanceLow Impact LandscapingSection 17.40.120 Development Setbacks***Other Yard Requirements. 1. Buffering. A 20-foot minimum buffer zone shall be required between development and any adjacent Residential District. The buffer zone shall provide landscaping to screen parking, service and delivery areas, and walls without windows or entries, as applicable. The buffer shall include native vegetation and may include swales, rain gardens, and curb-contained bioretention. The buffer may contain pedestrian seating but shall not contain any trash receptacles or storage of equipment, materials, vehicles, etc. The landscaping standards in Chapter 17.48 may require buffering other situations, as well.Development Code RecommendationsThe 6 LID CategoriesConservation DesignInfiltrationFiltrationRunoff StorageRunoff ConveyanceLow Impact Landscaping17.24.200 Special Standards for Certain Uses

D. Single-family Attached (townhomes), and Duplexes.

4.Common Areas. Common areas (e.g., landscaping in private tracts, shared driveways, private alleys, and similar uses) shall be maintained by a homeowners association or other legal entity. Such landscaping will preferably include native vegetation and may include retention ponds, swales, rain gardens, and curb-contained bioretention. A homeowners association may also be responsible for exterior building maintenance. A copy of any applicable covenants, restrictions and conditions shall be recorded and provided to the city prior to building permit approval.

Development Code RecommendationsThe 6 LID CategoriesConservation DesignInfiltrationFiltrationRunoff StorageRunoff ConveyanceLow Impact LandscapingSection 17.16.110 Permitted Land Uses

Table 17.16.110A.Land Uses and Building Types Permitted in the Residential District4. Accessory Uses and Structures (includes accessory dwellings)

a.Stormwater facilities (e.g. permeable pavements, rain gardens, rain barrels, vegetated swales, composting, and filter strips)

Development Code RecommendationsThe 6 LID CategoriesConservation DesignInfiltrationFiltrationRunoff StorageRunoff ConveyanceLow Impact LandscapingSection 17.16.120 Building setbacks***D. Setback Exceptions The following architectural features are allowed to encroach into the setback yards: Eaves, chimneys, bay windows, overhangs, and similar architectural features may encroach into setbacks by no more than 3 feet. Decks and similar roofless structures not more than 36 inches high may encroach into setbacks by no more than 6 feet, subject to the front yard setback provision in A. Other features, whether semi-permanent or permanent, that may be allowed to encroach into the setback yards include rain barrels and compost bins. Walls and fences may be placed on property lines, subject to the standards in Chapter 17.56 Site Plan, Landscaping and Construction Plan Approval. Wall and fences within front yards shall additionally comply with the vision clearance standards in Section 17.56.020.

Questions?AgendaProject Scope and Guidelines

Program Goals, Strategies, and Actions

Development Code Recommendations

Roles and Responsibilities

Q&A

Roles & ResponsibilitiesDeliver SWMP

Deliver LID amendmentsActivitiesCity Council will adopt SWMP/LID Amendments

DEQ will sign off

SWMP program administrator will oversee program

Provide DEQ with updatesImplementation32Questions?