8. APPROVAL AND DEDICATION OF PROJECTS WITH PUBLIC SEWERS [Amended. See Section 16]

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1 8. APPROVAL AND DEDICATION OF PROJECTS WITH PUBLIC SEWERS [Amended. See Section 16] General The District will accept for dedication, all public sewers, pump stations and sewerage treatment facilities within easements dedicated to the District that have been constructed to the District standards and for which the requirements stated herein have been met. The maintenance of these public facilities will remain the responsibility of the project Owner until such time that they have been accepted for dedication by the District Requirements for Plan Approval and Issuance of Permits Agreement to Dedicate An executed "Agreement to Dedicate" will be required for projects involving construction of public sewer facilities. The District will provide two (2) copies of this document to the Owner as part of the plan review process. These forms must be executed by the record Owner and returned to the District. The District will execute the documents and return one (1) copy to the Owner. Plan Approval will not be given for a project having public sewer facilities until the "Agreement to Dedicate" has been executed by both parties. An "Agreement to Dedicate" will not be required from the State of Missouri, any incorporated municipality, the City of St. Louis or St. Louis County or other tax supported government utility (school/fire district). All Projects submitted by these entities will be dedicated at the time construction approval is issued by the District Construction Escrow Deposit and Cash Deposit Agreement [See Amendment 2 & 3] Prior to the issuance of construction permits, a Construction Deposit for all public facilities, as well as an As-Built Deposit will be required as stated in Chapter 9. In addition, the project Owner will be required to execute a Construction Deposit Agreement Guaranteeing Completion of Sewer Improvements. Two (2) copies of this document will accompany the Plan Approval Notice to the Owner. The agreements must be executed and returned to the District before construction permits will be issued. One original will be returned to the Owner upon execution by the District Conditional Plan Approval [Amended. See Section 16] Conditional plan approvals may be issued in very limited instances, with a written agreement with the District. In such cases an additional Construction Deposit in the amount of $10,000.00, may be assessed upon compliance with all requirements as noted in the Conditional Plan Approval the District will release the Deposit within fourteen (14) days of review/approval by the Plan Reviewer Flexibility for BMP Permitting and Inspection [Added by Amendment 2] Developments with BMPs placed on each lot but for which no new public sewers are constructed may be divided into individual P# s for the purpose of tracking BMP inspections and collecting and releasing the BMP deposits. The Developer s Engineer shall indicate the Developer s interest to do this prior to plan approval. Once plans are approved, these requests cannot be accommodated. Additional administrative costs are required to provide for this flexibility. These costs will generally include a submittal fee and review fee proportional to the level of effort required to set up each individual P#, the amount to be determined on a case-by-case basis. Revised 10/15/12 102

2 8.030 Requirements for Construction Approval Construction Inspection All public sewer facilities must be inspected by the District. It is the responsibility of the Owner's Contractor to contact the District's Construction Department to arrange for this inspection. The District will not grant Construction Approval for any public sewer facilities, which were not constructed in accordance with approved plans and with the District inspection. The District will not allow the physical connection of the new public sanitary sewer construction to the existing system until construction approval has been given. Occupancy permits will be withheld by St. Louis County or the local municipality until Construction Approval is given Field Changes and Plan Revisions As-Built Drawings It is the intent and purpose of "Field Change" approvals to minimize the need for a formal plan revision for minor changes to the approved plans, and to minimize delays in construction. The following are the general procedures for processing a Field Change. 1. Initial requests for a change may be made verbally to the Engineering Department by the Owner, the Owner's Engineer or the Owner's Contractor, and followed up with a letter of request for file documentation. The petitioner should state the requested changes and the reason for the change. 2. Upon receipt of the request, the District will evaluate the proposed change to determine if it is to be allowed. In addition, if the request is made by someone other than the Owner's Engineer, the District will formally contact the Engineer to obtain authorization for the change, and request a letter of authorization for file documentation. 3. If determined to be necessary, revised hydraulic calculations may be required from the Owner's Engineer. 4. If the change is allowed, the Owner's Engineer will be required to submit the required number sets of the plan sheet(s) indicating the change. These plans may be copies of the original plans with the change noted in red. On occasion 11 X 17 excerpts of the original plan sheet(s) may be allowed. They should be to original scale and sealed. 5. The Engineering Department will notify the Construction Department of the approved field change and send copies of the changed plans to the appropriate District personnel, the Owner, Engineer, Contractor and municipal agencies. 6. The Contractor will be responsible for payment of all inspection fees associated with the change prior to Construction Approval. 7. Field changes must be indicated on the "As-Built" drawings. Significant change(s) to the HGL; the need for additional special structure(s), or additional permit(s) or significant fees or deposits; or, significant revisions to the project or missing requirements will preclude use of a field change format. In that case a formal plan revision will be necessary, instead. As-built drawings and State Plane Coordinates, certified by a Land Surveyor or Engineer registered in the State of Missouri, must be submitted to the District for review and acceptance prior to construction approval. As a minimum, the following information shall be provided for the As-Builts: Revised 10/15/12 103

3 1. Storm, Sanitary and Combined Sewers As-built drawings and State Plane Coordinates shall indicate the vertical and horizontal location of the storm, sanitary and combined sewers and structures in plan and profile view, including any and all changes from the Approved Plans and Field Changes. Special attention shall be paid to situations where sewers have moved out of easements. In those cases, additional easement(s) to be obtained must be so shown and so labeled. 2. Detention Basin a. A field survey of the basin shall be made to confirm the basin's location, size, shape and depth. As a minimum the as-built drawings and State Plane Coordinates shall include: (1). As-built cross-sections of the basin plotted over the design crosssections. (2) Spot elevations shown in plan, defining the location and elevation of the basin berm and overflow spillway. (3) Location, length, size, shape and flowline elevation of the detention basin concrete swale. (4) Control and overflow structure location, configuration, size, elevations, and any other information relevant to the proper operation of the structure (i.e.; opening size; low flow and outlet pipe size, slope and flowline and sill, orifice, weir elevations; etc.). b. Based on the field survey information, an elevation vs. storage table or curve of the detention basin should be submitted. c. Should the District be concerned that the as-built detention basin varies significantly enough from the approved basin design that it may not function as designed the District will require that new detention calculations be submitted for review. Based on this review, modifications to the detention basin may be required before acceptance of the as-built plans and release of any escrow. 3. Pump Station Construction a. As-Built Drawings and State Plane Coordinates shall indicate the physical location of the pump station, retention, access road force main, tuned locator markers and other related structures. b. Shop Drawings of all structures. c. Equipment manuals and pump operating curves for any items which differ from the original design as a result of a field change. d. For the pump(s) actually installed, and at the end of the job and in addition to the Manual and pump curve(s) from the equipment supplier, also provide the District Pump Station Division with pump serial number(s), model number, impeller trim, et cetera. Revised 10/15/12 104

4 e. The pump(s) will need to be run under actual conditions. Actual discharge pressures will then be used to determine actual operating point on the curves. Pumps running at the end of the curve will not be accepted. 4. Subdivision Plats A recorded copy of the subdivision plat must be submitted with the As-Built drawings. 5. Geotechnical Engineer's Certification Geotechnical Engineer's Certification will be required verifying that all work associated with the treatment of sinkholes, placement of compacted fill, and other soils-related work was completed in accordance with the approved Geotechnical Report. 6. State Plane Coordinates State Plane Coordinates as detailed below, are required on all improvements requiring As-built Drawings by the District. a. Horizontal Data All horizontal data provided on facilities will be in State Plane Coordinates Missouri East Zone, NAD 83(HARN). All horizontal coordinates provided shall have an accuracy of 50mm. b. Vertical Data All vertical data provided on facilities will be according to the NGVD29 (St. Louis County & St. Louis City Benchmark Books Datum). All vertical data shall have an accuracy of 60mm. c. Deliverables Revised 10/15/ An electronic points file of all state plane information will be required. The electronic points file shall be delivered as electronic media along with as-built drawings. The format for the electronic points file should be as follows: Electronic points file: Comma delimited text file with the extension of file type of ASC. The format of the file should be: Point, Northing, Easting, Elevation, Description (P, N, E, Z, D) Point: Survey point number Northing: Horizontal Data for Northing of State Plane coordinate Easting: Horizontal Data for Easting of State Plane coordinate Elevation: Vertical Data for Elevation of Top of Structure, Manhole Lid, etc. Description: Identifying number assigned to structure or location that corresponds with the plans. Example: File name: P ASC Sample: 22, , , , MH 23 23, , , , MH 24 24, , , , MH 25

5 Stormwater Quality Management Facilities and Cash Deposit Agreement [Added by Amendment 2, Amended by Amendment 3] Construction of Stormwater Quality Management Facilities is not required for construction approval. However, prior to the issuance of construction approval: a. The project owner shall execute a "Construction Deposit Agreement Guaranteeing Completion of Stormwater Quality Management Facilities". Two (2) copies of this document will accompany the Plan Approval Notice to the Owner. This document must be executed and returned to the District before construction approval will be issued. One original will be returned to the Owner upon execution by the District. b. The project owner shall provide a construction deposit for all stormwater quality management facilities, as stated in Chapter 9. c. The permittee shall apply for all stormwater BMP permits. The owner executed Construction Deposit Agreement Guaranteeing Completion of Stormwater Quality Management Facilities" and associated deposit shall be provided to MSD before stormwater BMP permits are issued Notification of Construction Approval [See Amendment 2] The District will notify the Owner and the Owner's Contractor when construction approval is given. In addition, St. Louis County or the local municipality will be notified that occupancy permits may be released Requirements for District Approval of Stormwater Quality Management Facility Construction [Added by Amendment 2] Construction Inspection [See Amendment 3] All permitted stormwater quality management facilities must be inspected by the District. It is the responsibility of the Owner's Contractor to contact the District's Construction Department to arrange for this inspection. The District will issue a BMP Construction Completion Letter when its inspection indicates that stormwater quality management facilities were constructed satisfactorily and in compliance with approved plans. The District will not issue a BMP Construction Completion Letter for any facilities which were not constructed in accordance with approved plans and without District inspection. No portion of the Stormwater Quality Management Facilities Construction Deposit will be released without the District issuing the BMP Construction Completion Letter. Stabilization of the drainage area tributary to stormwater quality management facilities is very important to the facility s function. The District will also perform an inspection of the drainage area tributary to stormwater quality management facilities. The District s determination of drainage stability will be determined when the drainage area s final landscape cover is established. Any vegetated covers should provide a uniform, evenly distributed final vegetative cover with a minimum density of 80 percent. MSD reserves the ability to require additional site stabilization measures, where construction sediment or other construction materials are affecting BMP performance Field Changes and Plan Revisions Requirements for field changes and plan revisions for stormwater quality management facilities are the same as those listed in Revised 10/15/12 106

6 As-Built Drawings [See Amendment 2, Section 16] As-built drawing requirements for stormwater quality management facilities are similar as those listed in for detention basins. As-built drawings shall be submitted to the District for review and acceptance prior to issuance of the BMP Construction Completion Letter. MSD may waive as-built drawings for stormwater BMPs on a case-by-case basis. In general, this waiver will be limited to smaller surface BMPs that serve small, controlled drainages (e.g., bioretention fed by roof downspouts). This waiver, when applicable, will be noted by MSD on approved plans Dedication and Release of Construction Deposit [See Amendment 2 & 3] Residential and Commercial Subdivisions, Apartments and Condominiums [See Amendment 2] B. Initial Dedication Inspection Upon completion of fifty percent (50%) of the lots in the total residential or commercial subdivision, or fifty percent (50%) of the buildings in an apartment or condominium development, the District will perform a dedication inspection upon receipt of a written request from the Owner. 1. If there are no deficiencies, the District will release one-half of the monies held in deposit within fourteen (14) days of the receipt of a properly executed "Sewer Dedication Agreement" form. 2. If deficiencies are noted within the system, the Owner has ninety (90) days to correct these deficiencies. a. If the deficiencies are not corrected within this period, the District will contact St. Louis County or the local municipality and request that all unissued building permits and occupancy permits be withheld until the deficiencies are corrected. Extensions may be granted for inclement weather or other extenuating circumstances. b. Upon correction of the deficiencies, the Owner will be responsible for requesting a reinspection of the system. c. The District will release one-half of the within fourteen (14) days of the second inspection, provided all deficiencies have been corrected to the District's satisfaction and receipt of a properly executed "Sewer Dedication Agreement" form. B. Final Dedication Inspection Upon completion of one hundred percent (100%) of the lots in the total residential or commercial subdivision, or one hundred percent (100%) of the buildings in an apartment or condominium development, and within three (3) years of the execution of the Cash Deposit Agreement, the District will perform a final dedication inspection upon receipt of a written request from the Owner. 1. If there are no deficiencies, the District will release the remaining Deposit within fourteen (14) days of the inspection, provided both the Owner and the District execute a Sewer Dedication Agreement (if not already executed at the fifty percent (50%) completion stage). Revised 10/15/12 107

7 2. If deficiencies are noted within the system, the Owner must correct these deficiencies before the remaining monies will be released. a. Upon correction of the deficiencies, the Owner will be responsible for requesting a reinspection of the system. b. The District will release the remaining Deposit and within fourteen (14) days of the second inspection, provided all deficiencies have been corrected to the District's satisfaction, and the Sewer Dedication Agreement is executed by both the Owner and the District (if not already executed at the fifty percent (50%) completion level). c. Fees for multiple inspections will be required as stated in sub-section If the development is not completed within three (3) years of the execution of the Cash Deposit Agreement, the remaining Deposit will not be returned to the Owner and will be used by the District, at it's discretion and in any manner the District sees fit, to complete any improvements or correct deficiencies Sewer Extensions and Single Lot Developments [See Amendment 2] The District may release fifty percent (50%) of the Deposit for small sewer extensions and single lot commercial and residential developments at the time of construction approval, provided the Sewer Dedication Agreement" is executed by both the Owner and the District. The remaining fifty percent (50%) would be released as stated in B - Final Dedication Inspection Dedication Inspection Fees [See Amendment 2] Pump Stations [See Amendment 2] A. All projects with public sewer facilities will receive a total of four (4) dedication inspections (four (4) for Pump Station inspections) by the District without charge as follows: 1. The first inspection and the reinspection at the fifty percent (50%) development completion. 2. The first inspection and the reinspection at the one hundred percent (100%) development completion. 3. One inspection and one reinspection at each stage of the pump station construction. Inspection fees, as determined by the District, will be required for each additional inspection. The amount of these fees will be deducted from the Deposit to be released to the Owner. Pump Stations will be accepted for dedication upon Construction Approval of the project. The Sewer Dedication Agreement for pump stations constructed as part of a subdivision, apartment or condominium project will not be executed until all items in have been completed. The District will release the Pump Station Deposit upon completion of the two stages of the pump station construction as described below. Revised 10/15/12 108

8 The Owner must submit a written request to the Escrow Section of the Engineering Department for inspection and release of the Pump Station Deposit. Only one (1) inspection may be requested within a thirty (30) day period. The inspection and release of the Deposit will be made only if the District agrees that the necessary work is complete and no discrepancies have been identified. Pump Station Deposit Account: A. Stage One 1. Fifty percent (50%) Inspection and Release of Deposit B. Stage Two a. One hundred percent (100%) of the construction of the pump station structure, storage tank, force main and pump bases. This inspection requires the wet well floor to be dry. 1. One hundred percent (100%) Inspection and Release of Deposit a. All electrical and mechanical equipment installed and in operating condition. All paving, fencing, site restoration, and any additional easement requirements completed and written notice of Construction Approval. Operation of the pumps must be within acceptable limits of pump curves. Flow into station must be less than or equal to projected flow. Flow must be free from excessive grease and other foreign substances. b. Letter of completion from installing paving contractor, guaranteeing all pavement and pavement subsurfaces have been installed per the District Pump Station Design Requirements document Abandonment of Work [See Amendment 2] Upon receipt of a written statement from the Owner that further work on the project has been abandoned, the District shall determine whether or not the uncompleted work is required to ensure the public health, safety and welfare. Should it be determined that completion of the work is necessary, the District shall utilize the monies deposited in the Construction Deposit for the project to complete this work. Should the District determine that the completion of the work is not required; the Construction Deposit shall be released in accordance with Section Release of Stormwater Quality Management Facilities Construction Deposit [Added by Amendment 2, Amended by Amendment 3] The District will release up to seventy-five percent (75%) of the deposit upon issuance of BMP Construction Completion Letter. For sites with multiple (more than four (4)) permitted BMPs, the District will consider proportionally releasing the deposit at twenty-five percent (25%) and fifty (50%) percent of the total number of BMPs constructed. Where dedication of public sewers is not required, the District will also perform an inspection of the drainage area tributary to stormwater quality management facilities. MSD will hold the balance of the stormwater quality management facility deposit until the BMP drainage areas (for which the developer has disturbed or has reasonable control over) is sufficiently stable for stormwater quality management facility operation and all BMPs are functioning properly. Where dedication of public sewers is required, the District will perform the inspection of the drainage area tributary to stormwater quality management facilities as part of the dedication inspection process. The balance of the BMP deposit will be released as part of the dedication process. Revised 10/15/12 109