D. Post-Construction Storm Water Management in New Development & Redevelopment (MCM #5)
1. The Permit Requirement (Per Ohio EPA draft NPDES Permit)
2. Post-Construction Storm Water Management in New Development and Redevelopment Plan
The BMPs, measurable goals, and responsible parties in this Post-Construction Storm Water Management Plan are detailed in Table 4.
3.2.5.2.1 Your program to address storm water runoff from new development and redevelopment projects. Include in this description any specific priority areas for this program.
As detailed in Table 4, we will use a combination of planning activities, education, and non-structural and structural practices to address storm water runoff from new development and redevelopment projects.
This program will be targeted at the entire Village, in that there is developable land throughout, and redevelopment and lot consolidation of existing parcels can occur.
3.2.5.2.2 How your program will be specifically tailored for you local community, minimize water quality impacts, and attempt to maintain pre-development runoff conditions.
Our community is a residential community with limited commercial and institutional developments. Our water quality concerns are those related to increases in storm water runoff as impervious cover increases and include sedimentation due to stream bank erosion, increased flooding due to increases in storm water volume, temperature due to increases in storm water temperature in detention facilities, and habitat loss as riparian and wetland areas are impacted by development.
To address this we will complete our comprehensive land use plan detailing remaining undeveloped parcels and the natural resource features and functions, including flood control, erosion control, and water quality protection of these parcels. This plan will also inventory the natural resource functions of land throughout our community.
From this plan, we will explore the implementation of zoning that encourages non-structural storm water management. This includes conservation subdivisions for residential areas and riparian and wetland setbacks.
We will also adopt an improved storm water management regulation that addresses both storm water quality and quantity and encourages the use of non-structural storm water management techniques. This ordinance will also encourage the use of low impact development practices on our commercial and institutional areas.
Because these BMPs represent significant changes in storm water management in Northeast Ohio, education for landowners, developers, planners, engineers, and others is necessary to support their implementation. CRWP will provide such educational opportunities throughout the permit term. We will continue to support this education through our membership in CRWP.
3.2.5.2.3 Any non-structural BMPs in your program, including, as appropriate:
In 2003 and 2004, we will explore the appropriateness of riparian setbacks, wetland setbacks, and conservation development to our community. If appropriate, we will work with CRWP to tailor these requirements for implementation in our zoning code.
In addition to zoning, the Village of Moreland Hills has a long history of preserving open space. Most recently we purchased four acres adjacent to the Chagrin River and will be improving riparian areas of the property to improve water quality in the Chagrin River..
3.2.5.2.3.2 Policies or ordinances that encourage infill development in higher density urban areas, and areas with existing storm sewer infrastructure.
Because we have are low density area, this requirement does not apply to us.
3.2.5.2.3.3 Education programs for developers and the public about project designs that minimize water quality impacts.
Through our participation in CRWP, we will continue to make workshops on storm water management available to developers and the public. We will educate the Village staff about these types of designs.
3.2.5.2.3.4 Other measures such as minimization of the percentage of impervious area after development, use of measures to minimize directly connected impervious areas and source control measures often thought of as a good housekeeping, preventable maintenance and spill prevention.
The Village is sensitive to the reservation of natural features through Ordinances such as the Hillside Ordinance that maintains vegetation along regulated hillsides, which are typically adjacent to streams and water bodies.
The Village, through the land Use Plan, the Planning Commission and the Storm Water Management Committee will explore limiting impervious areas fro future development. The Zoning code currently limits structure coverage to 12% of the parcel area.
3.2.5.2.4 Any structural BMPs in your program, including, as appropriate:
3.2.5.2.4.1 Storage practices such as wet ponds and extended-detention outlet structures.
We currently require subdivisions to control their storm water quantity through the use of detention ponds. In 2003 we will explore various options to add water quality measures to our detention requirements. These measures will be implemented in our storm water management regulation in 2004.
3.2.5.2.4.2 Filtration practices such as grassed swales, bioretention cells, sand filters and filter strips.
We will explore the implementation of these practices through our process to adopt an improved storm water management regulation in 2004.
3.2.5.2.4.3 Infiltration practices such as infiltration basins and infiltration trenches.
We will explore the implementation of these practices through our process to adopt an improved storm water management regulation in 2004. Based on soil types in the Village, these practices will most likely not be practical.
3.2.5.2.5 What are the mechanisms (ordinance or other regulatory mechanisms) you will use to address post-construction runoff from new developments and redevelopments and why you chose that mechanism. If you need to develop a mechanism, describe your plan and a schedule to do so. If your ordinance or regulatory mechanism is already developed, include a copy of the relevant sections with your program.
As discussed above, the mechanisms we will use to address post-construction runoff from new developments and redevelopments include ordinances requiring riparian and wetland setbacks, and an improved storm water management regulation.
We chose these mechanisms because they address our water quality concerns that are related to increases in storm water runoff as land is developed. These mechanisms provide flexibility to landowners, while ensuring that new impervious cover is minimize; the flood control, erosion control, and water quality functions of our watercourse and wetlands are maintained; and that when storm water is created, it is managed for both quality and quantity.
3.2.5.2.6 How will you ensure the long-term operation and maintenance (O&M) of your selected BMPs. Options to help ensure that future operation and maintenance responsibilities are clearly identified include an agreement between you and another party such as a post-development landowners or regional authorities.
Non-structural BMPs including riparian and wetland setbacks will be maintained as any other setbacks are maintained in the Village of Moreland Hills. As with all setbacks, landowners proposing activities in setbacks must request a variance and this request is reviewed, modified, and approved or disapproved by the Community Engineer and the Planning Commission.
Structural BMPs created through our improved storm water management regulation will be maintained by post-development landowners. If these landowners do not complete necessary operation and maintenance, the Village of Moreland Hills will reserve the right to complete this work and assess these landowners.
3.2.5.2.7 Who is responsible for overall management and implementation for your post-construction plan and, if different, who is responsible for each of the BMPs identified for this program.
The responsible parties for each component of our Post-Construction Storm Water Management Plan are detailed in Table 4.
3.2.5.2.8 How will you evaluate the success of this minimum measure, including how you selected the measurable goals for each of the BMPs.
We will evaluate the success of this minimum measure through our ability to successfully improved storm water management by 2004. If these practices are not adopted, we will consider additional BMPs to achieve similar outcomes.
Table 4: Village of Moreland Hills Post-Construction Storm Water Management Plan
Best Management Practice & Strategy Schedule Measurable Goals Responsible Party Comprehensive Land Use Plan: As with most land use plans, this Plan will review the Community's existing land use and recommend future uses. As part of Phase II, however, this Plan will also inventory the natural resource functions, including flood control, erosion control, and water quality in the Community. Much of this information will be developed by CRWP through their natural resource database for the Chagrin watershed. CRWP database completed by 2003.Prepare updated land use plan for presentation to Village Council by end of 2003 Plan completed by mid 2004 Provide plan that will outline development in Village that is compliant with Phase II Permit. Council: Review and adopt updated land use plan Land Use Plan Committee: Review data and findings prepared by the Village's Consultant. Coordinate with MCM's #3 and #5 CRWP: Develop database of natural resource features and functions for member communities.
Site Planning Forum: Participate in CRWP Site Planning Forum to examine current development practices and potential modifications of these practices to reduce the creation of storm water and to minimize the impacts of impervious cover. CRWP host Site Planning Forum in 2003. Participate in Site Planning Forum in 2003 Village Officials Attend Forum CRWP: Host Forum. Mayor/Council: Ensure participation.
Workshops for Development Community: Workshops for landowners, builders, developers, and community officials on storm water management.
2003 & on-going Provide workshops annually CRWP: Provide workshops. Storm Water Management Committee: Advertise through web site, newsletter, and local paper.
Open space preservation: Through the Comprehensive Land Use Plan, the Community will identify parcels for preservation. Parcels identified in 2004. Preserve open space containing riparian areas. Mayor & Council: Include parcel identification in Land Use Plan. Storm Water Management Committee: Work with CRWP and others to identify future funding options to permanently preserve these parcels.
Measures reducing impervious cover: The Community currently limits the imperviousness of residential and commercial lots. Begin review of BMP in 2003. Determine applicability of BMP by 2004. Update Zoning code to include all impervious areas of properties. Community Engineer: Ensure impervious cover limitations are enforced on new development and redevelopment projects. Planning Commission and Council: Explore Zoning Ordinance and update to provide additional controls.
Conservation residential/industrial subdivisions: Community will explore adopting zoning ordinances allowing interested landowners the option of maintaining open space to control storm water runoff. Begin review of BMP in 2003. Determine applicability of BMP by 2004. Review possible zoning regulations applicable to accomplish this within the Village Planning Commission/ Land Use Plan Committee: Explore BMP and recommend approval or disapproval. If disapproval recommended, recommend alternative BMP. Storm Water Management Committee: Assist Planning and Zoning Commission in review. If community decides not to implement BMP, suggest other non-structural BMPs to meet the requirements of MCM #5.
Riparian and Wetland Setbacks: Community will explore adopting zoning ordinances creating setbacks from certain watercourses and wetlands. Begin review of BMP in 2003. Determine applicability of BMP by 2004. Planning Commission: Explore BMP and recommend approval or disapproval. If disapproval recommended, recommend alternative BMP. Storm Water Management Committee: Assist Planning and Zoning Commission in review. If community decides not to implement BMP, suggest other non-structural BMPs to meet the requirements of MCM #5.
Storm Water Management Ordinance: Adopt CRWP model storm water management ordinance. This ordinance includes provisions for both new development and redevelopment activities. Review ordinance in 2003. Adopt by 2004. Planning Commission: Review ordinance, work with CRWP to tailor to community needs, and recommend adoption to Council. Storm Water Management Committee: Assist Planning Commission in review and tailoring of model ordinance.
|