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Permit Number: T06BU01361
Parcel: 141011120

Review Status: Completed

Review Details: GRADING

Permit Number - T06BU01361
Review Name: GRADING
Review Status: Completed
Review Date Reviewer's Name Type of Review Description Status Comments
06/05/2006 ANDREW CONNOR NPPO REVIEW Denied Submit the approved tentative plat, landscape plan, and native plant preservation plan. LUC 1.1.3
06/26/2006 LAITH ALSHAMI ENGINEERING REVIEW Denied Laith Alshami, Engineering and Floodplain Review, 06/26/2006

Sierra Morado Unit 3, phase 2 Grading Plan Comments:

1- Provide the T06BU01361 case number in the Tile Block.
2- Show how this project ties into the Basis of Bearing.
3- Remove the reference to "Pima County Development Services" under the acceptance signature line on Sheet 1 of 10. Replace "Pima County" with "City of Tucson".
4- Add a General Grading Note, which states that "a SWPPP inspection and a pre-construction meeting between the Contractor and Development Services Engineering Inspector is required before construction activities start. Call for SWPPP inspection and pre-construction meetings. for a DSD 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
5- Provide the project Administrative Address.
6- Revise General Notes #2 and #25 to remove the reference to "Pima County" and replace it with "City of Tucson".
7- Add a general note, which states that the project will be in compliance with City of Tucson Development Standard 11-01.0 (Excavation and Grading).
8- Add a general note, which requires the contractor to depress all landscaped areas a maximum of 6" for water harvesting.
9- Provide the Grading Limits.
10- Detention basin maintenance access ramp shall be barricaded to prevent inadvertent vehicular access. Revise the basin detail on Sheet 4 of 7 accordingly.
11- Since the third option of Detail 8/3 reflects a slope between a private lot and a common area, the footing of the wall should be shown to be entirely on the private property. Revise as needed.
12- The submitted Geotechnical Report is not for the subject project. Submit the right Geotechnical Report.
13- The Geotechnical Report shall include the recommended slope treatment and required setback lines from ponding water in the detention basins. The report shall specify the slope percentage or ratio and the recommended treatment based on the angle of the slope. The Grading Plan shall demonstrate compliance with the Geotechnical Report recommendations.
14- Lots 877-881 are shown as Type "B" lots in the Drainage Report and on the Tentative Plat. The Final Plat shows them as Type "A". Justify the change and revise as necessary.
15- Provide a typical cross section detail for the adjoining lot backyards for lots 882-891 and 902-911.
16- Call out whether the streets are public or private.
17- Provide plan and profile for all proposed private streets.
18- Show cross-section details for all common areas "B" between lots (i.e. between lots 925 and 926, etc.)
19- Provide filter fabric underneath all proposed riprap spillways. Ensure that all slope treatments are in compliance with the Geotechnical Report recommendations.
20- Provide the name(s) of the wash(es) that impact this project.
21- It is recommended that the Collector Street adjacent to lots 892 and 901 be protected from erosion to ensure all weather access to the residence.
22- It seems that the floodplain and erosion hazard setback delineation at the collector street/box culvert crossing should be revised to reflect the installation of the culvert and the containment of the runoff within the drainage structure.
23- Work in the public right of way requires an excavation permit and/or may require a private improvement agreement. Check with City of Tucson Department of Transportation Permits and Codes for additional information.
24- Ensure that the proposed landscaping in the detention/retention basins does not conflict with the basin's inlets/outlets and maintenance ramps.
25- Resubmit the redlined plan with future Grading Plan submittals.
26- Provide a detailed response letter with the next submittal that explains how the comments were addressed and references the exact locations/sheets where the revisions were made.
27- Please be advised that several comments, that are included herein, were made previously on the Phase 1 submittal of Sierra Morado Unit 3 and could have been addressed and avoided on this submittal.

If you have any questions, I can be reached at 791-5550 x1195 or Laith.Alshami@tucsonaz.gov


The Stormwater Pollution Prevention Plan does not meet the requirements of construction general permit. The SWPPP must be revised in accordance with the following comments:

1. In recent and past meetings with EPA and ADEQ representatives as well as copies of review letters from ADEQ, it has become clear that SWPPPs should be tailored to the specifics of the site and should not be overly generic. In order to be approved, the plan must be complete and must provide specific directions for pollution prevention activities and facilities.
2. The general permit defines two general classes of operators that must be identified in the SWPPP. The first class of operator is the party that has "operational control over construction plans and specifications (see definitions Part IX, page 31 of the CGP) The second class of operator is the party that "has day-to-day operational control of those activities at a project that are necessary to ensure compliance with a SWPPP for the site." Each party that qualifies as an operator must be specifically identified in the SWPPP. Part IV.C.1
3. Items 1, 2, 4, and 6 of the "Contractor's Report" are required elements of the SWPPP that must be completed before the SWPPP can be approved.
4. Part IV.C.3.c. Identify and clearly label on the map locations of structural and nonstructural controls identified in the SWPPP. Include the location of the washout area, locations of storage areas
5. Part IV.D.5 The SWPPP shows structural controls in the floodplain, the SWPPP must document why effective controls could not alternatively be placed outside of the floodplain or the SWPPP must be revised so that the structural controls are outside of the floodplain limits. The SWPPP also shows structural controls within the WASH ordinance study area. All such disturbance in the study area must be approved in the WASH review process.
6. Although the narrative of the SWPPP (page 7) indicates that a combination of silt fencing and straw bale barriers are proposed, the site map does not clearly indicate locations where each is appropriate. Provide specific direction to the operators.
7. The SWPPP indicates that commonly used dust palliatives are describe in the "Stormwater Pollution Control Measures" section. Since this is a very large section of the SWPPP, provide more complete locating instructions. (This applies to all references to this section.) I did not find a discussion of the palliatives in this section.
8. Revise sediment control note 3 on page 7 to indicate that Drexel Road will be swept as often as required to keep the roadway free of tracked sediment.
9. Part IV.C.3.g. Clearly label on the map locations where stormwater is discharged to a surface water (e.g. ephemeral waters or dry washes) and to MS4s. Non-concentrated discharge areas should also be identified.
10. Provide calculations to show that the basins will be able to contain the total discharge from a 2-year 24-hour storm. The calculations in the drainage report have different criteria than the requirements of the general permit.
11. On page 14 the "Non-Stormwater Discharges" section has a note in bold face type. The note describes a required element of the SWPPP that must be completed before the SWPPP is approved.

The SWPPP must be revised to meet the requirements of these comments. The entire SWPPP must be revised to be specific and to provide specific instructions to all of the operators of the project.
If you have any questions, I can be reached at 520.791.5550 ext. 1161 or at loren.makus@tucsonaz.gov.

Loren Makus, E.I.T.
Senior Engineering Associate
07/24/2006 PATRICIA GEHLEN ZONING REVIEW Denied Zoning
Zoning will review and approve the grading plans once the tentative plat is approved and Engineering has approved the grading plans.

Final Status

Task End Date Reviewer's Name Type of Review Description
07/24/2006 CINDY AGUILAR OUT TO CUSTOMER Completed
07/24/2006 SUE REEVES REJECT SHELF Completed