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Permit Review Detail
Review Status: Completed
Review Details: GRADING
Permit Number - T07BU02153
Review Name: GRADING
Review Status: Completed
| Review Date | Reviewer's Name | Type of Review | Description | Status | Comments |
|---|---|---|---|---|---|
| 10/15/2007 | DAVID RIVERA | ZONING | REVIEW | Denied | 10/15/07 Development Services Department Zoning Review Section David Rivera Principal Planner Comments: 1. The grading plan has been reviewed by Zoning Review Section but cannot approve the plan on this review. 2. Zoning could not verify that the grading plan was in compliance with the DSD approved stamped site plan. Please include two copies of the DSD approved and stamped site, landscape, and NPPO plans with the next grading plan submittal. 3. Please ensure that the grading plan matches the DSD approved and stamped site plan. 4. Zoning will re-review the grading plan on the next submittal to ensure compliance with the DSD approved and stamped site plan. Additional comments may be forthcoming. |
| 10/24/2007 | ANDREW CONNOR | NPPO | REVIEW | Denied | Submit a copy of the approved site plan including landscape plans for reference. The grading application will be reviewed for compliance only when the approved documents are included in the submittal. Revise grading plans as necessary to comply with the approved site plan. |
| 11/14/2007 | JASON GREEN | ENGINEERING | REVIEW | Denied | DATE: November 15, 2007 SUBJECT: 3301 S 6th Avenue Grading Plan- Engineering Review TO: Lance Robinson LOCATION: T14S R13E Sec25 Ward 5 REVIEWERS: Jason Green, CFM ACTIVITY: T07BU02153 (Grading Plan) SUMMARY: Engineering Division of Development Services Department has received and reviewed the grading plan (T07BU02153) and Storm Water Management Plan (SWMP) sheets for the above referenced property. Engineering Division does not recommend approval of the grading plan or SWMP at this time. The following items need to be addressed: GRADING PLAN COMMENTS: The project was reviewed for grading plan and Stormwater Pollution Prevention Plan (SWPPP) purposes, however until all site plan, Drainage Report, and Geotechnical Report comments are addressed the grading plan could not be shown to be in conformance with an approved plan. Further comments may be forth coming depending on the revisions to the site plan, Drainage Report, and Geotechnical Report. 1) Revise the grading plan and associated details to show the required 6-foot wide sidewalk with curb along the street frontage of south 6th Avenue. Per the adopted Mayor and Counsel policy all sidewalks along MS&R right-of-ways for arterial and collector streets require 6-foot wide sidewalks. 2) Revise the handicap ramp detail on Sheet C-6 of the grading plan to show the proper handicap ramp required for the PAAL ingress/egress from south 6th Avenue. Per COT Standard a 5-foot landing is required at the top of the ramp to meet ADA compliance. Provide all dimension for the ramp and verify that the revision meets the design requirements per ANSI Standards A117.1-2003 Section 406.13. 3) DS Sec.2-02.2.1.A.32: Revise the Trash Enclosure Detail on Sheet C-6. Provide the minimum refuse enclosure requirements per DS Sec.6-01. Refer to the attached Figure 3 (included with the hard copy of the comment letter) per DS Sec.6-01 for the required refuse enclosure dimensions and construction. 4) DS Sec.11-01.9: Revise the grading plan to provide the required 2-feet setback from the all property boundaries to the top or bottom of fill slope for the proposed basins. Provide and/or revise the cross-sections on the grading plan to show the limits of grading, property lines and the required 2-feet setback from the property lines for the retention basins, walls and buildings along the property boundaries. 5) DS Sec.11-01.4.1.C.4: Provide a General Note stating that all fencing and walls will require a separate permit for review and approval by all necessary Development Services Departments. 6) Provide a general note on the grading plan to state the following; "Call for a Pre-construction meeting prior to start of earthwork. To schedule a DSD Pre-construction meeting, SWPPP inspection or general Engineering Inspections, call IVR (740-6970), or schedule with a Customer Service Representative at the Development Services Department, or contact DSD Engineering at 791-5550 extension 2101, or schedule inspections online at: http://www.ci.tucson.az.us/dsd/Online_Services/Online_Permits/online_permits.html 7) DS Sec.11-01: Provide general grading notes, including a grading/drainage note specifying conformance with City of Tucson Development Standard 11-01.0 (excavation and grading requirements). 8) DS Sec.10-02.14.3.2: Provide a note on the grading plan stating that, (a) the owner or owners shall be solely responsible for operation, maintenance, and liability for drainage structures, underground MaxWell™ Plus Drainage System and the Envibro™ dry well system; (b) that the owner or owners shall have an Arizona Registered Professional Civil Engineer prepare a certified inspection report for the drainage and detention/retention facilities at lease once every 6-months, and that these regular inspection reports will be on file with the owner for review by City staff, upon written request; (c) that City staff may periodically inspect the drainage and retention/detention facilities to verify that scheduled and unscheduled maintenance activities are being performed adequately; and (d) that the owner or owners agree to reimburse the City for any and all costs associated with the maintaining of the drainage structures, underground MaxWell™ Plus Drainage System and the Envibro™ dry well system, should the City find the owner or owners deficient in their obligation to adequately operate and maintain their facilities." 9) Please ensure that any future grading plan will be consistent with the site plan, Drainage Report and geotechnical report. Grading standards may be accessed at: http://www.ci.tucson.az.us/dsd/DevStandsTOC.pdf 10) Approval from TDOT Permits and Codes for all improvements within the public right-of-way will be required. A right-of-way use permit application will be required prior to construction. Contact Thad Harvison, (520)-791-5100 or Thad.Harvison@tucsonaz.gov for all right-of-way requirements and permit applications. GEOTECHNICAL REPORT: 11) DS Sec.10-01.III.3.5.1.3.a, 10-02.14.2.6: Provide a geotechnical report evaluation that addresses the following: a) Soils report should provide conformance with DS Section 10-02.14.2.6 regarding 30-foot boring for the basins, and provide a discussion of the potential for hydro-collapsible soils. Report should address building setback from basins. b) Provide slope stability recommendations for all proposed constructed slopes and for the retaining wall system proposed for the basins. c) Provide pavement structure design recommendations. d) Provide percolation rates for retention/detention basins for 5-year threshold retention. 12) Provide a revised geotechnical report, or addendum, that specifically assesses the proposed underground stormwater retention/detention system with dry wells beneath the pavement. The geotechnical report shall state whether the chambers are subject to collapsing or whether the pavement structure would be damaged from heavy traffic loads. DRAINAGE REPORT: Provide a Drainage Report with the next grading plan submittal for review and approval. Note that for future projects a grading plan can not be submitted for review without the proper documentation, i.e. Drainage Report and Geotechnical Report. 13) Provide manufacture recommendations for maintenance of the underground stormwater retention/detention system. Revise the drainage report and grading plan to show that maintenance of the dry wells and underground stormwater retention/detention systems meets the recommendations of the manufacture. 14) Provide references from the manufacture where these types of underground stormwater systems and dry wells have been used and their applicability to this project. All references should include use and maintenance of the underground stormwater system and how that system is achieving design criteria. STORMWATER POLLUTION PREVENTION PLAN: The SWPPP does not meet the minimum requirements of the AzPDES Construction General Permit (CGP). The SWPPP report and exhibits must be signed and sealed by the engineer of record. 15) Part IV.C.2: Explicitly indicate in the SWPPP the name of the operator with operational control over project specifications (including the ability to make modifications in specifications). 16) Part IV.C.2: Describe the nature of the construction activity: 17) Part IV.C.2.a: Describe the project and its intended use after NOT is filed. 18) Part IV.C.2.b: Describe the intended sequence of disturbance activities. 19) Part IV.C.2.c: Indicate the total area of site and estimate of total area expected to be disturbed (include off-site borrow and fill areas). 20) Part IV.C.2.d: Estimate the pre-construction and post-construction runoff coefficient and provide soil data and any existent data on the quality of the discharge. 21) Part IV.C.3.e: Identify on the map locations of off-site material, waste, borrow areas, or equipment storage. 22) Part IV.C.3.g: Identify on the map locations where sw is discharged to surface water (e.g. ephemeral waters or dry washes) and to MS4s. 23) Part IV.C.4: Identify on the map or in a narrative, the nearest receiving water(s), including ephemeral and intermittent streams, dry sloughs, or arroyos. If applicable, identify the areal extent and describe any wetlands near the site that could be disturbed or potentially receive run-off from disturbed areas. 24) Part IV.C.6: Identify on the map and address offsite material storage areas or borrow areas used solely for the project. 25) Part IV.D.1: Describe all pollution control measures (BMPs). 26) Part IV.D.1: For each major activity, describe the BMP, the general sequence for implementing BMPs, and which operator is responsible for each BMP. Include BMPs used at offsite material storage areas if the storage areas are used solely by the permittee for this project. 27) Part IV.D.2.a: Describe the erosion and sediment controls designed to retain sediment on site to the extent practicable. 28) Part IV.D.2.b: Describe the selection, installation and maintenance of BMPs per manufacturers' specifications and good engineering practices, including procedures for modifying or replacing BMPs if one is found to be ineffective or installed incorrectly. 29) Part IV.D.2.c: Describe the practice and schedule to routinely remove offsite accumulation of sediment routinely. 30) Part IV.D.3: Describe good housekeeping procedures to be used (prevent litter, debris and chemicals from being exposed to sw). 31) Part IV.D.4.a: Describe and identify interim and permanent stabilization practices for the site. Document where existing vegetation will be preserved. 32) Part IV.D.4.c: Describe record keeping efforts, include forms/checklists used for keeping the required data. 33) Part IV.D.5: Describe structural practices used to divert flows from exposed soils, store flows and limit runoff and the discharge of pollutants from exposed areas to degree attainable (Combination of sediment and erosion controls must be used). 34) Part IV.D.5.a.i: Describe the location, size and retention capacity of the drainage basin(s) and the areas that drain into them. 35) Part IV.D.5.a.iii: For a drainage area of < 10 disturbed acres, describe how and where smaller sediment basins or sediment traps are used along with silt fences, vegetative buffer strips, or alternatives on all side slope boundaries OR Describe how and where a sediment basin with storage for a 2yr, 24hr storm per disturbed acre drained will be used OR Describe how and where a sediment basin with 3600 ft3 of storage per disturbed acre drained will be used. 36) Part IV.D.6: Describe post-construction sw management measures, if applicable. Describe where and what structural measures were placed in upland soils to the degree attainable. Confirm in the narrative whether structural measures comply with local or state sw management requirements. 37) Part IV.D.7: Identify all allowable sources of non-sw discharges except for flows from fire-fighting activities. Describe how all non-sw discharges will be eliminated or reduced to the extent feasible. Describe how BMPs will be implemented for non-sw discharges. If superchlorinated wastewater will be generated, describe how they will be dechlorinated or held on site until chlorine levels have dissipated, unless used for Fire fighting. 38) Part IV.D.8.a: Describe measures to be used to prevent discharge of solid materials to waters of U.S. 39) Part IV.D.8.c: Describe controls to be used to reduce pollutants from construction and waste materials stored on-site (including storage practices, and spill prevention and response practices). 40) Part IV.E.3: Describe procedures and activities to be used to remove sediment from traps or ponds when design capacity is reduced by 50%. 41) Part IV.G: Describe whether SWPPP is consistent with federal, state, or local soil and erosion control or sw management requirements. 42) Part IV.H.1: Describe routine inspection schedule and procedures to ensure BMPs are functional and SWPPP is being implemented. Indicate if the inspection frequency is to be at least once every 7 calendar days OR Indicate if the inspection frequency is to be at least once every 14 days and also within 24 hours of the end of each storm event of 0.5 inches. 43) Part IV.H.3: Indicate who the qualified personnel will be to perform inspections and describe the persons' qualifications. 44) Part IV.H.4: Describe all areas to be inspected including all disturbed areas of site, and areas used to store materials exposed to precipitation. Describe inspection procedures how inspectors will look for evidence of, or potential for, pollutants entering drainage system. Describe in inspection procedures how inspectors will observe sedimentation and erosion control measures. Describe inspection procedures and how inspectors will look at accessible discharge points, and ascertain whether erosion control measures are effective. Describe in inspection procedures how inspectors will look at nearby stream downstream locations when discharge points are inaccessible. Describe in inspection procedures how inspectors will look for sediment tracking at entrances and exits. Describe how inspectors will document all findings and what the inspection form will look like. 45) Part IV.H.5: Describe how inspectors will complete an inspection report for each inspection that includes inspection date; name, title and qualifications of each qualified person making the inspection; weather information for period since last inspection; location of discharges of sediment or other pollutants; list of BMPs that need to be maintained, failed to operate or prove inadequate; list of additional needed BMPs; corrective actions required; sources of all non-sw and control measures; and materials storage areas with evidence of pollutant discharge. 46) Part IV.H.6: Describe how and where the inspection records will be maintained for at least three years; how the report will document noncompliance or certify full compliance; and indicate who will be authorized to sign the report. 47) Part IV.H.7: Describe how the SWPPP will be modified when needed, within 7 calendar days of inspection. BMPs must be modified or added before next storm event or as soon as practicable. 48) Part IV.I.1: Describe how the SWPPP will be modified within 15 business days after change in design, construction, operation or maintenance at site that has a significant effect on discharge or not previously addressed in SWPPP. 49) Part IV.J.1: The Operator must sign the SWPPP. 50) Part IV.J.2: Describe how and where the operator will post a sign at main entrance to site containing: AZPDES authorization number (or copy of NOI authorization), construction site contact name and telephone number, brief project description, location of SWPPP if the site is inactive or does not have an on-site storage location. GENERAL COMMENTS: Please provide an approved site plan, revised grading plan, Drainage Report, geotechnical report and SWPPP that addresses the comments provided above. Include a comprehensive response letter addressing in detail responses to all of the above comments. Enclose "redlines" with the resubmittal package. Further comments may be generated upon resubmittal of the site plan review. If you have any questions, or to schedule an appointment, I can be reached at 837-4929. Jason Green, CFM Senior Engineer Associate Engineering Division COT Development Services |
Final Status
| Task End Date | Reviewer's Name | Type of Review | Description |
|---|---|---|---|
| 11/29/2007 | THAUSER1 | OUT TO CUSTOMER | Completed |
| 11/29/2007 | THAUSER1 | REJECT SHELF | Completed |