My WebLink
|
Help
|
About
|
Sign Out
3_Exhibit C_ADDENDUM ONLY
City of Pleasanton
>
BOARDS AND COMMISSIONS
>
PLANNING
>
AGENDA PACKETS
>
2020 - PRESENT
>
2023
>
02-22
>
3_Exhibit C_ADDENDUM ONLY
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
2/17/2023 2:21:14 PM
Creation date
2/17/2023 2:20:08 PM
Metadata
Fields
Template:
CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
12/22/2023
DESTRUCT DATE
15Y
Document Relationships
3
(Message)
Path:
\BOARDS AND COMMISSIONS\PLANNING\AGENDA PACKETS\2020 - PRESENT\2023\02-22
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
197
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
Show annotations
View images
View plain text
City of Pleasanton—Stoneridge Mall Residential Project <br />CEQA Checklist Section 15183 Checklist/15164 Addendum <br /> <br /> <br />126 FirstCarbon Solutions <br />Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480017/Consistency Checklist/21480017 Stoneridge Mall Residential Project Checklist <br />Addendum_Updated.docx <br />Environmental Setting <br />The project site is currently occupied by an asphalt parking lot with 239,773 square feet of <br />impervious surfaces consisting entirely of paved areas and parking. Impervious surfaces on-site are <br />limited to landscaped parking islands. The project site currently drains into various storm drains and <br />catchments on the southern portion of the project site. Remaining stormwater on the project site <br />flows toward Stoneridge Mall Road, where it is collected by existing inlets. <br />Findings <br />a) Water Quality <br />Prior EIR Conclusions <br />The Prior EIR found that projects facilitated by the Housing Element could affect drainage patterns <br />and create new impervious surfaces, causing changes to stormwater flows and water quality. <br />However, it was determined that compliance with the Alameda Countywide Clean Water Program <br />(ACCWP) NPDES Permit, and implementation of the Construction General Permit would require <br />future development at any potential sites that would disturb more than 1 acre to incorporate BMPs <br />to control sedimentation, erosion, and hazardous materials contamination of runoff during <br />construction. Site plans, design, and BMPs for residential projects facilitated by the Housing Element <br />are required to demonstrate proper compliance with applicable water quality regulations during <br />application for development permits and the applicable NPDES permits. It was determined that the <br />City and/or the San Francisco Bay Regional Water Quality Control Board (San Francisco Bay RWQCB) <br />would review and approve applicable permits and would ensure that new development or <br />redevelopment would not substantially worsen existing water quality problems. Therefore, the Prior <br />EIR concluded that buildout of the Housing Element would have a less than significant impact on <br />water quality. <br />Analysis of Proposed Project <br />The proposed project would demolish all the existing impervious surfaces on the project site, <br />totaling 239,773 square feet of impervious pavement and parking surfaces. The proposed project <br />would reduce the amount of impervious surfaces to 220,438 square feet (or approximately 5 acres) <br />of impervious surfaces on the project site post-construction of the proposed project. Therefore, in <br />accordance with Section 2.3.2 of the County’s C.3 Guidebook, set forth in the Municipal Regional <br />Stormwater NPDES Permit (MRP), the proposed project would be required to include water <br />treatment measures, such as the incorporation of multiple bioretention areas throughout the <br />project site.62 The proposed project would also be required to prepare and comply with Pleasanton <br />Municipal Code Chapter 9.14.080, Reduction of Pollutants in Stormwater, which states that all <br />construction activities must follow BMPs outlined in the most current California Stormwater Quality <br />Association (CASQA) construction BMP manual in order to prevent any debris and dirt flowing into <br />the City’s storm sewer system, and all operations following construction must comply with project- <br /> <br />62 Alameda Countywide Clean Water Program. 2021. C.3 Stormwater Technical Guidance – Chapter 2, Background/Regulatory <br />Requirements. February 8.
The URL can be used to link to this page
Your browser does not support the video tag.