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Permit Review Detail
Review Status: Completed
Review Details: GRADING
Permit Number - T04BU01265
Review Name: GRADING
Review Status: Completed
| Review Date | Reviewer's Name | Type of Review | Description | Status | Comments |
|---|---|---|---|---|---|
| 06/15/2004 | PAUL MACHADO | ENGINEERING | REVIEW | Denied | To: Dinkar Gangwal DATE: June 14, 2004 117 N. 6th Avenue Tucson, Arizona 85701 SUBJECT: Fire Station No. 21, 8620 E. Tanque Verde Road Grading plan T040 (First Review) T13S, R15E, Section 33 RESUBMITTAL REQUIRED: Grading Plan, Drainage Report and SWPPP The Grading Plan (GP) and Drainage Report (DR) cannot be approved as submitted. Please address the following review comments prior to the next submittal. Grading Plan: 1. Please include a response letter to the comments along with the corrected copies of the GP. 2. Add the basin(s) maintenance responsibility note per S.M.D.D.F.M. 2.3.1.6 C 1 and 2 to the GP. See attached sheet. 3. Show cross section with transverse and longitudinal slopes. 4. Please show the proposed roof drainage patterns, 100% of the 10-year flow must be conveyed under the sidewalks. Please provide supporting calculations to demonstrate compliance with D.S. 3-01.4.4. If the location(s) of the roof scuppers have not yet been decided, add a general note indicating sidewalk scuppers (per COT/SD) will be used when the roof scuppers locations have been designed. 5. A permit or a private improvement agreement will be necessary for any work performed within the Right-of-way. Contact Permits and Codes at (520) 791-5100 for permit information. 6. Delineate 100-year W.S.E.L., Floodplain and erosion hazard setback. 7. Show the 100-year flood peak discharge. 8. Per the soil report all slopes of 3H: 1V require revegetation. 9. Call out all slopes and stabilization material (concrete, riprap, gabbions or vegetation). 10. All proposed fill to conform to Section 13 of the 2000 IBC - Address grade differential of proposed lot grades from the existing grades and/or adjacent to the graded site - 2' minimum setbacks from top and toe or cut of fill slopes. 11. Flow arrows, grades and flow rates within and adjacent to site to show drainage scheme. 12. Call out peak discharges entering and exiting the site. 13. According to the soils report, a more permeable layer of soil may be available at the 18 foot depth. The engineered basin may not sufficient, perhaps the discharge may be mitigated through the 4" bleeder pipe alone. Please address. 14. The soils report suggests that all "6" depressed landscaped areas" be eliminated, especially in a 5' perimeter of the building. Please revise. 15. Per the soils report all roof , down spouts and down spots should discharge onto a protected surface or drain lines. Please revise. 16. According to the soils report, where cut or fill slopes that will be temporarily submerged under water, the slopes should be 4:1 or flatter (basin slopes). 17. Will the grading plan be subject to review by the soils engineer as suggested in the soils report? Please include a copy of the soils engineers comments, if applicable. 18. Detention/Retention: · Match Drainage report. · Cross-sections and dimension. · Dimension basin and provide spot elevations. · Security barriers are required if ponding depth exceeds 2 feet, if slopes are greater than 4:1 and/or if pedestrian access is adjacent to basin. · Water surface elevations. · Peak discharge at basin's outlet. 19. Show details of all surface and subsurface drainage devices. A Stormwater pollution prevention plan is required. Contact Paul P. Machado at 791-5550 x1193 for additional information. 20. The wash rack (hoses and trucks) discharge may not be drained into any stormwater facility, surface or subsurface feature. Provide a sanitary drain where applicable. Hydrology Report: 1. Please include a response letter to the comments along with the corrected copies of the HR. 2. There seems to be some discrepancies in the Peak estimator data sheets. Please check or revise basin factors and re-calculate the Hydrologic Data sheets if necessary. For example the 100-year existing cfs for the 2.067 acres, using a basin factor of 0.45 is only 8.92 cfs. The correct bf is 0.60. If the bf of 0.60 is used then the 100-year cfs comes out to 17.6 cfs. This is a significant change, please revise all data sheets with the correct factors. A further review will be necessary to determine the basin retention values with the new data sheets. 3. Add the basin(s) maintenance responsibility note and checklist per S.M.D.D.F.M. 2.3.1.6 C 1 and 2 to the DR. Stormwater pollution prevention plan: Note: The Stormwater Pollution prevention plan must include all elements of the SWPPP and must be completed completely before the SWPPP can be approved. Operators Identify all operators for the project site, and the areas over which each operator has control. (Part IV.C.1) Indicate in the SWPPP the name(s) of the party(ies) with operational control over project specifications (including the ability to make modifications in specifications). (Part IV.B.2.c) Indicate in the SWPPP the areas of the project where the operator has operational control over project specifications, including the ability to make modifications in specifications. (Part IV.B.1.b) Indicate in the SWPPP the name(s) of the party(ies) with day-to-day operational control of those activities necessary to ensure compliance with the SWPPP or other permit conditions. Provide a table for recording the names and responsibilities for each party responsible for activities necessary to ensure compliance with the SWPPP or other permit conditions. (Part IV.B.1.d) Indicate in the SWPPP the areas of the project where each operator has operational control over day-to-day activities. (Part IV.B.2.c) Site Description Provide a general location map (e.g., U.S.G.S. quadrangle map, a portion of a city or county map, or other map) with enough detail to identify the location of the construction site and the receiving waters within one mile of the site. (Part IV.C.2.e) Identify the nearest receiving water(s), including ephemeral and intermittent streams, dry sloughs, arroyos. (Part IV.C.4) (NOTE: If applicable, the SWPPP must also identify the areal extent and describe any wetlands near the site that could be disturbed or that could potentially receive discharges from disturbed areas of the project.) Site Map 1. Show, on the site map, directions of stormwater flow (e.g., use arrows to show which ways stormwater will flow) and approximate slopes anticipated after major grading activities. (Part IV.C.3.a) 2. Show, on the site map, areas of soil disturbance and areas that will not be disturbed. (Part IV.C.3.b) 3. Show, on the site map, locations of structural and nonstructural controls identified in the SWPPP. (Part IV.C.3.c) 4. Show, on the site map, locations where stabilization practices are expected to occur. (Part IV.C.3.d) 5. Show, on the site map, locations where stormwater discharges to a surface water (including ephemeral waters or dry washes) and to MS4s. (Part IV.C.3.g) 6. Show, on the site map, locations and registration numbers of on-site drywells. (Part IV.C.3.a) Summary of Potential Pollutant Sources 7. Identify the location and describe any stormwater or non-stormwater discharges at the site associated with activity other than construction and other pollutant sources such as fueling operations, materials stored on-site, waste piles, etc. (Part IV.C.5) NOTE: This also includes discharges from dedicated asphalt plants and dedicated concrete plants that are covered by this permit. 8. Identify and address offsite material storage areas or borrow areas used solely by the operator's project. (Part IV.C.6) Stormwater Controls 9. Describe all pollution control measures (i.e., BMPs) that will be implemented as part of the construction project to control pollutants in stormwater discharges. (Part IV.D.1) For each major activity identified in the project description, the SWPPP must clearly describe appropriate control measures; the general sequence during the construction process that the measures will be implemented; and which operator is responsible for the control measure's implementation. (Part IV.D.1) NOTE: Offsite material storage areas (also including overburden and stockpiles of dirt, borrow areas, etc.) used solely by the permitted project are considered a part of the project and must be addressed in the SWPPP. Erosion and Sediment Controls 10. Specify that erosion and sediment controls shall be designed to retain sediment on site to the extent practicable. (Part IV.D.2.a) 11. Specify that all control measures must be properly selected, installed, and maintained per the manufacturers' specifications and good engineering practices. If periodic inspections or other information is discovered that indicates a control has been used inappropriately, or installed incorrectly, the operator must replace or modify the control for site situations as soon as practicable and before the next anticipated storm event. (Part IV.D.2.b) 12. Specify that when sediment escapes the construction site, offsite accumulations of sediment must be routinely removed and at a frequency sufficient to ensure no adverse effects on water quality. (Part IV.D.2.a) (Part IV.D.2.c) Stabilization Practices 13. Describe and identify interim and permanent stabilization practices for the site, including a schedule of when the practices will be implemented. (Part IV.D.4.a 14. Please remove any text that refers to water harvesting areas on page 4 of the SWPPP. Non-Stormwater Discharges 15. Describe measures to prevent the discharge of solid materials, including building materials and litter, to waters of the United States. (Part IV.D.8.a) 16. Describe measures to minimize off-site vehicle tracking of sediments. (Part IV.D.8.b) Permit Related Records 17. Include a copy of the general permit and the NOI that was or will be submitted to ADEQ. If other agreements with any state, local, or federal agencies exist that would affect the provisions or implementation of the SWPPP, include copies of those agreements. (Part IV.F) 18. The grading plan and landscape plan may be incorporated into the SWPPP by reference. The requirements of the plans must be treated by the operator as part of the SWPPP. (Part IV.G) If you have any questions, I can be reached at 791-5550 x1193 or Paul.Machado@tucsonaz.gov Paul P. Machado Senior Engineering Associate City of Tucson/Development Services Department 201 N. Stone Avenue P.O. Box 27210 Tucson, Arizona 85726-7210 (520) 791-5550 x1193 office (520) 879-8010 fax |
| 06/17/2004 | PETER MCLAUGHLIN | ZONING | REVIEW | Denied | Site plan approval required prior to grading plan approval. |
| 06/17/2004 | Joseph Linville | NPPO | REVIEW | Denied | Approval of the site plan and landscape plans is required prior to grading plan approval. Subsequent to these approvals the grading sheets will be reviewed for conformity with the approved documents. Revise the grading plan to correspond with the provisions of the native plant preservation plan. Plants identified as preserved in place are to be retained at the existing grade for a distance of one half the drip-line radius. In order to accomplish this, a limit of grading is to be established around native plants to be preserved and adejacent to any natural areas preserved. Clearly delineate these grading limits on the grading plan. DS 2-15.3.4.A.1 |
Final Status
| Task End Date | Reviewer's Name | Type of Review | Description |
|---|---|---|---|
| 06/23/2004 | TAMI ACHONG | OUT TO CUSTOMER | Completed |
| 06/23/2004 | ANGIE SHOFFSTALL | REJECT SHELF | Completed |