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4200/4300 - Liquid Waste/Water Well Permits
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SR0080749_SSNL
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Entry Properties
Last modified
3/24/2022 1:52:40 PM
Creation date
12/6/2019 10:30:40 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
4200/4300 - Liquid Waste/Water Well Permits
FileName_PostFix
SSNL
RECORD_ID
SR0080749
PE
4301
STREET_NUMBER
9375
Direction
W
STREET_NAME
SUGAR
STREET_TYPE
RD
City
TRACY
Zip
95304
APN
21216017
ENTERED_DATE
6/14/2019 12:00:00 AM
SITE_LOCATION
9375 W SUGAR RD
P_LOCATION
03
P_DISTRICT
005
QC Status
Approved
Scanner
TSok
Tags
EHD - Public
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Civil, <br /> Environmental <br /> ` £t Water <br /> Resources <br /> MEMORANDUM <br /> ENGINEERING CORP. <br /> TO: Linda Turkatte,REHS <br /> Director, San Joaquin Environmental Health Department <br /> FROM: Norman Hantzsche,PE,Questa Engineering Corporati , <br /> DATE: October 11,2019 <br /> SUBJECT:Final-OWTS Design Review for Holly Commerce Center, E&E Trading <br /> In my Memorandum of August 15,2019 I provided review comments on the plans and <br /> supporting design and Nitrate Loading Study for an onsite wastewater treatment system(OWTS) <br /> to serve the subject project in the Holly Commerce Center,E&E Trading facility,in San Joaquin <br /> County. My comments and recommendations pertained to three main items: (1)sewer collection <br /> system design;(2)provisions for wastewater treatment and disposal to accommodate potential <br /> future changes in the uses and occupancy of the buildings; and(3)alternate nitrate loading <br /> methodology for sites developed with large impervious area. <br /> Revised plans,design analysis and responses addressing the review comments were prepared by <br /> Siegfried Engineering in a Memorandum,dated October 1,2019. I've reviewed the Siegfried <br /> Memorandum and find it satisfactorily addresses the issues and recommendation raised in my <br /> initial review,with my concluding notes as follows: <br /> 1. Sewer Design. The revised plans adequately address my comments and concerns about the <br /> original collections system design that had included very deep tanks and gravity sewers.No <br /> further comment. <br /> 2. Provisions for Future Wastewater Needs. Appropriate provisions are included for ongoing <br /> monitoring and reporting of wastewater flows under the County's program for OWTS <br /> monitoring. <br /> The Siegfried Memorandum includes calculations of projected wastewater flows and.disposal <br /> needs for potential future occupancy of the facilities up to their architectural capacity as <br /> office space.A drawing is provided depicting locations for future leachfields in the areas that <br /> would no longer be needed/used for loading docks (current plan). This is a reasonable <br /> assessment of how a fixture hypothetical change in use could potentially be accommodated <br /> for wastewater disposal (leachfields). However,it does not address the significant increases <br /> in wastewater nitrate loading that can be expected to accompany future changes in <br /> use/wastewater flows. My preliminary calculations indicate this would most probably require <br /> the inclusion of a supplemental treatment system for nitrogen removal in order to meet <br /> discharge criteria. Given the limited percolation information for site,there's a strong <br /> 1 <br /> Box 70356, 1220 Brickyard Cove Rd.Suite 206 Pt. Richmond,CA 94807 T.5101236.6114 F 5101236.2423 E:Que5tadQuestaEC.com <br />
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