A. SUBMITTAL REQUIREMENTS

1. For all projects to be reviewed by the Drain Commissioner, the proprietor will submit construction plans with a letter of transmittal requesting review.

2. For platted subdivisions, review of construction plans by the Drain Commissioner will not proceed until tentative preliminary plat approval has been granted.

3. For all other developments, if a preliminary plan was not reviewed and approved by the Drain Commissioner, all aspects of Part 1, Section II, must also be adhered to during the construction plan preparation.

4. Payment of applicable review fees is required before any review will commence. (See Fee Schedule, Appendix F).

B. CONSTRUCTION PLAN REQUIREMENTS

The Drain Commissioner will review construction plans to assure that adequate storm drainage will be provided and that the proposed stormwater management system provides adequately for water quantity and quality management to ensure protection of property owners, lands, and watercourses both within the proposed development and downstream. Final construction plan submitted shall include the following:

1. The names of the proprietor and engineering firm, with mailing addresses, email, fax and telephone numbers for each, shall be included with the transmittal. Plans will be prepared under the direction of, and sealed by, a registered professional engineer.

2. Three complete sets of construction plans are required, drawn to a scale no smaller than 1" = 50'. The plans shall be drawn to standard engineering scales. The construction plan submittal shall include all required information listed in PART 1, Section II, Articles A and B, as well as the following, where applicable:

a. The property description and address, the total acreage, and a project location map. If the project is to be completed in phases, the number of acres in each phase shall also be included.

b. The proposed project layout with all dimensions, including the proposed drainage system for the project.

c. Topographic maps, at one-foot contour intervals within the limits of the construction area on U.S.G.S. datum, showing existing and proposed grades. Maps will also show all existing watercourses, PA 40 designated drains, lakes and wetlands, and the extent of all off-site drainage areas contributing flow to the development.

d. Calculations, design data and criteria used for sizing all drainage structures, channels and basins, including weighted runoff coefficient calculations.

e. Plans and details of proposed retention/detention facilities. Soil borings in accordance with preliminary plat requirements will be required at the sites of these facilities.

f. Plans, profiles when required, and details of all roads and storm sewers. The storm sewer details will include type, class and size of pipe, length of run, percent of slope, invert elevations, and rim elevations.

g. Storm sewer calculations indicating the number of acres, calculated to the nearest tenth of an acre, contributing to each specific inlet/outlet, maximum flow in cfs and the flow velocities for enclosed systems.

h. An area drainage map overlaid onto a copy of the site grading plan clearly showing tributaries to each inlet and/or storage basin.

i. Plans, profiles when necessary, and details of all open drains, drainage swales and drainage structures.

j. Submittal of the MDEQ permit requirement checklist. (see Appendix L)

k. All construction specifications for the stormwater management facilities.

l. Locations of all sewage disposal facilities and water wells required to be shown on the plan by the Kalamazoo County Environmental Health Division and all proposed expansion areas.

C. CONSTRUCTION PLAN APPROVAL

1. When plans have been completed utilizing computer aided design, copies of the electronic files in Autocad or approved equivalent, of the final plan set shall be provided for those items that specifically relate to the storm drainage facilities and information required in these Rules. These items include, but are not limited to, storm sewers, swales, ponds, grading plans, etc., as well as all available information such as complete site layout, sanitary sewer and water main plans, and topographic surveys.

2. A stormwater facility maintenance plan, schedule, and budget shall be submitted when not being owned, operated and maintained by the KCDC, KCRC or other municipal entity. See Part 2, Section VIII.

3. For site condominiums, all items outlined in Part 1, Section IV, Articles B through F, Article I and Article J regarding final approval must be completed prior to the approval of construction plans. Complete master deed documents, including by-laws and exhibit B Drawings must be submitted for the Drain Commissioner's review and approval prior to recording.

4. The Drain Commissioner shall be invited to all pre-construction meetings with other agencies, utility companies and contractors.

5. A soil erosion permit may be required under "The Michigan Soil Erosion and Sedimentation Control Act", P.A. 451, Part 91 Public Acts of 1994 as amended and must be obtained from the appropriate agency prior to any construction.

6. Approval of construction plans by the Drain Commissioner's office is valid for two calendar years. If an extension beyond this period is needed, the proprietor will submit a written request to the Drain Commissioner 30 days prior to for an extension. The Drain Commissioner may grant a one year extension of the approval. This extension may require updated or additional information if needed, and/or design modifications to meet the current prevailing Rules of the Kalamazoo County Drain Commissioner. Review of plans beyond the initial approvals may incur costs to be paid by the owner.

7. Payment of all fees is required prior to approval.