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| − | A flow chart was developed to determine the appropriate performance goal or Flexible Treatment Option for a new development, redevelopment, or linear site. You may access a pdf version of the flow chart or follow the flow chart through the sequence of questions using the Manual website. | + | [[File:Wiki flow chart sequence.png|100px|thumb|alt=image of flow chart used for wiki|<font size=4>[https://stormwater.pca.state.mn.us/index.php?title=MIDS_design_sequence_flow_chart Launch flow chart]</font size>]] |
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| | + | A flow chart was developed to determine the appropriate performance goal or Flexible Treatment Option for a new development, redevelopment, or linear site. You may access a pdf version of the flow chart ([[File:Final MIDS Flow chart.pdf]]) or follow the flow chart through the sequence of questions using the [https://stormwater.pca.state.mn.us/index.php?title=MIDS_design_sequence_flow_chart Manual website]. |
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| | + | If you would like a copy of the flowchart in Visio, so that you can edit it, please contact us. |
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| | + | [[Category:Level 2 - Management/MIDS]] |
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| | + | <!-- |
| | + | ==Using the wiki version of the flow chart== |
| | + | The wiki version of the flow chart takes you through a series of questions and steps to ultimately arrive at a performance goal. The wiki version does not necessarily take you through each step shown in the pdf version of the flow chart. The structure of the wiki version differs from the pdf version of the flow chart. You can see the structure used for the wiki version at [[List of flow chart questions|this link]]. |
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| | If you proceed through the flow chart using the wiki, we recommend you create a book to document the steps in the process. | | If you proceed through the flow chart using the wiki, we recommend you create a book to document the steps in the process. |
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| | *Upon completing the flow chart, create a pdf document from your book and save it to your computer. | | *Upon completing the flow chart, create a pdf document from your book and save it to your computer. |
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| | + | Note that you cannot control the formatting of the book you create within the wiki. You can export the book as a pdf document and edit the pdf document. |
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| | ==Flow chart links== | | ==Flow chart links== |
| − | | + | *[https://stormwater.pca.state.mn.us/index.php?title=MIDS_design_sequence_flow_chart Launch flow chart] |
| − | *[[MIDS design sequence flow chart - Box 1|Launch flow chart]] | |
| | *[[Prelimiary information for Design Sequence Flow Chart|Preliminary information for Design Sequence Flow Chart]] | | *[[Prelimiary information for Design Sequence Flow Chart|Preliminary information for Design Sequence Flow Chart]] |
| − | *Overview of [[List of flow chart questions|wiki version of flowchart]] and summary of flowchart questions. | + | *Overview of [[List of flow chart questions|flowchart questions]]. |
| | *pdf version of the flow chart: [[File:Final MIDS Flow chart.pdf]] | | *pdf version of the flow chart: [[File:Final MIDS Flow chart.pdf]] |
| − | <!--
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| − | Follow the questions below sequentially to arrive at a performance goal appropriate for your site.
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| − | <font size=7><span style="color:red">
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| − | DO NOT SCROLL AROUND ON THIS PAGE.
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| − | READ THE ALERT BOX BELOW.</span></font size>
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| − | {{alert|INFORMATION ON USING THE FLOW CHART SEQUENCE:
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| − | *when you click on an answer (Yes or No), the next question in the sequence will be at the top of the page.
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| − | *if a decision point is reached (a performance goal or FTO is determined), there will be a blue alert box and a message saying you have completed the flow chart sequence.
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| − | *solid lines separate different questions in the sequence. Remember the next question in your sequence is at the top of the page.
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| − | *Read the Preliminary information before before launching the Flow Chart.
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| − | *You can launch the Flow Chart once the Preliminary information section is complete.
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| − | |alert-info}}
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| − | ==Preliminary information==
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| − | Prior to using the flow chart, gather the following preliminary information.
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| − | *Conduct site review
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| − | *Define performance goal
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| − | ===Conduct site review===
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| − | *Aerial photos and topographic maps
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| − | *County soil surveys and other soil information as available
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| − | *County Geologic Atlas
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| − | *Local groundwater levels
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| − | *DWSMA and Wellhead Protection maps
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| − | *FEMA and local floodplain maps
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| − | *Soil borings and site survey
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| − | *MPCA listing of potentially contaminated sites
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| − | *Phase 1 and 2 Environmental Site Assessments
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| − | *TMDLs and local water quality standards
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| − | *Wetland delineations, MNRAM assessments, and wetland classifications
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| − | *Proposed conditions, conceptural/preliminary site design
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| − | *Local zoning and land use requirements/ordinances, including stormwater rate control requirements
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| − | *Communication with local landowners, LGU, or others knowledgeable about the site
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| − | *Site inspection
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| − | ===Define treatment goal===
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| − | *New and redevelopment projects: Retain on site a volume of 1.1 inches from impervious surfaces
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| − | *Linear projects: Retain on site the larger of 1.1 inches from all new impervious surfaces or 0.55 inches from all new and fully reconstructed impervious surfaces
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| − | [[Does project create the project create one acre or more of new and/or fully reconstructed impervious surfaces?]]
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| − | <font size=10>[[Design sequence flow chart#Does the project create one acre or more of new and/or fully reconstructed impervious surfaces?|Launch Flow chart]]</font size>
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| − | __________________________________________________<br>
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| − | __________________________________________________
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| − | ===Does the project create one acre or more of new and/or fully reconstructed impervious surfaces?===
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| − | *[[Design sequence flow chart#MIDS performance goal does not apply|No]]
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| − | *[[Design sequence flow chart#Is the project linear?|Yes]]
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| − | <font size=5>Select the correct answer above. Do not scroll below this line<br>
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| − | _________________________________________________________</font size>
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| − | ===MIDS performance goal does not apply===
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| − | {{alert|The MIDS performance goal does not apply|alert-info}}
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| − | <FONT SIZE=5>YOU HAVE COMPLETED THE FLOW CHART<br>
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| − | Do not scroll below this line<br>
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| − | _____________________________________________________</font size>
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| − | ===Is the project linear?===
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| − | *[[Design sequence flow chart#Are there constraints due to lack of available ROW, off site drainage and/or rate control requirements?|Yes]]
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| − | *[[Design sequence flow chart#Are there zoning and land use requirements that make the Performance Goal not feasible?|No]]
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| − | <font size=5>Select the correct answer above. Do not scroll below this line<br>
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| − | _________________________________________________________</font size>
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| − | ===Are there constraints due to lack of available ROW, off site drainage and/or rate control requirements?===
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| − | *[[Design sequence flow chart#Can a reasonable effort to acquire all of the ROW be accomplished?|Yes]]
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| − | *[[Design sequence flow chart#|No]]
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| − | <font size=5>Select the correct answer above. Do not scroll below this line<br>
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| − | _________________________________________________________</font size>
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| − | ===Can a reasonable effort to acquire all of the ROW be accomplished?===
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| − | *[[Design sequence flow chart#|Yes]]
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| − | *[[Design sequence flow chart#Is FTO Alternative Number 2 feasible?|No]]
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| − | <font size=5>Select the correct answer above. Do not scroll below this line<br>
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| − | _________________________________________________________</font size>
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| − | ===Is FTO Alternative Number 2 feasible?===
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| − | *[[Design sequence flow chart#Select FTO Alternative 2 (linear projects)|Yes]]
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| − | *[[Design sequence flow chart#Select FTO Alternative 3 (linear projects, zoning/land use requirements)|No]]
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| − | <font size=5>Select the correct answer above. Do not scroll below this line<br>
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| − | _________________________________________________________</font size>
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| − | ===Select FTO Alternative 2 (linear projects)===
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| − | {{alert|Select FTO Alternative 2. Provide documentation of off-site run-on to project area. Provide documentation of lack of ROW|alert-info}}
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| − | Link to [[Design sequence flow chart#Flexible Treatment Option 2 (FTO#2)|FTO #2]]
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| − | <font size=5>
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| − | YOU HAVE COMPLETED THE FLOW CHART<br>
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| − | Do not scroll below this line<br>
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| − | _________________________________________________________</font size>
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| − | ===Select FTO Alternative 3 (linear projects, zoning/land use requirements)===
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| − | {{alert|Provide soil survey, maps, regulations, and/or cost estimates documenting that meeting the original performance goal or FTO alternatives is not feasible in addition to other documentation as required by LGU|alert-info}}
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| − | Link to [[Design sequence flow chart#Flexible Treatment Option 3 (FTO#3)|FTO#3]]<br>
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| − | <font size=5>
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| − | YOU HAVE COMPLETED THE FLOW CHART<br>
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| − | Do not scroll below this line<br>
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| − | _________________________________________________________</font size>
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| − | ===Are there zoning and land use requirements that make the Performance Goal not feasible?===
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| − | *[[Design sequence flow chart#Is the site located in a DWSMA, wellhead protection area, or within 200 feet of a drinking water well?|No]]
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| − | ===Is the site located in a DWSMA, wellhead protection area, or within 200 feet of a drinking water well?===
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| − | *[[Design sequence flow chart#DWSMA1|Yes]]
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| − | *[[Design sequence flow chart#Utilities, structures, land use requirements|No]]
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| − | ====DWSMA1====
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| − | *Select Flexible Treatment Option
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| − | *(FTO) Alternative No. 2
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| − | *Revise Treatment Goal
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| − | *No infiltration practices allowed
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| − | *Provide DWSMA or well location map
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| − | [[Design sequence flow chart#Utilities, structures and land use requirements|next]]
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| − | ===Utilities, structures, land use requirements===
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| − | Are there existing or proposed utilities, structures, or land use requirements (density, parking, setbacks, etc.) that make the Treatment Goal infeasible or cost prohibitive?
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| − | *[[Design sequence flow chart#Utilities1|yes]]
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| − | *[[Design sequence flow chart#Karst, shallow groundwater, shallow bedrock|no]]
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| − | ====Utilities1====
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| − | Is BMP relocation possible?
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| − | *[[Design sequence flow chart|Karst, shallow groundwater, shallow bedrock|yes]]
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| − | *[[Design sequence flow chart|Utilities2|no]]
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| − | ====Utilities2====
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| − | Are Flexible Treatment Option Alternatives number 1 or number 2 feasible?
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| − | *[[Design sequence flow chart#Utilities4|yes]]
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| − | *[[Design sequence flow chart#Utilities3|no]]
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| − | ====Utilities3====
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| − | Investigate Off-Site Considerations:
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| − | #Banking within watershed with goal of:
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| − | *Linear: 0.55 inches over impervious
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| − | *Nonlinear: 1.1 inches over impervious
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| − | #Cash as determined by LGU
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| − | Provide site survey, maps, regulations, and/or cost estimates documenting infeasibility and cost-prohibitive nature of meeting the original Treatment Goal or FTO Alternatives
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| − | <font size=5>END</font size>
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| − | ====Utilities4====
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| − | *Select Flexible Treatment Option Alternative No. 1 or No. 2
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| − | *Revise Treatment Goal
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| − | *Provide site survey, maps, regulations, and/or cost estimates documenting infeasibility and cost-prohibitive nature of meeting the original Treatment Goal
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| − | [[Design sequence flow chart#Karst, shallow groundwater, shallow bedrock|next]]
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| − | ===Karst, shallow groundwater, shallow bedrock===
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| − | ==Flexible Treatment Option 1 (FTO #1)==
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| − | Applicant attempts to comply with the following conditions:
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| − | #Achieve at least 0.55 inch volume reduction goal, and
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| − | #Remove 75 percent of the annual total phosphorus load, and
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| − | #Options considered and presented shall examine the merits of reloacting project elements to address varying soil conditions and other constraints across the site
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| − | ==Flexible Treatment Option 2 (FTO #2)==
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| − | Applicant attempts to comply with the following conditions:
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| − | #Achieve volume reduction to the maximum extent practicable (as determined by the Local Authority), and
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| − | #Remove 60 percent of the annual total phosphorus load, and
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| − | #options considered and presented shall examine the merits of relocating project elements to address varying soil conditions and other constraints across the site.
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| − | ==Flexible Treatment Option 3 (FTO#3)==
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| − | Off-site mitigation (including banking or cash or treatment on another project, as determined by the local authority) equivalent to the volume reduction performance goal can be used in areas selected in the following order of preference:
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| − | #Locations that yield benefits to the same receiving water that receives runoff from the original construction activity.
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| − | #Locations within the same Department of Natural Resources (DNR) catachment area as the original construction activity.
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| − | #Locations in the next adjacent DNR catchment area up-stream.
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| − | #Locations anywhere within the local authoritie's jurisdiction.
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| − | -->
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