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SU0004267 SSNL
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SU0004267 SSNL
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Last modified
11/19/2024 10:19:59 AM
Creation date
9/4/2019 6:04:04 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2600 - Land Use Program
FileName_PostFix
SSNL
RECORD_ID
SU0004267
PE
2632
FACILITY_NAME
PA-0300093
STREET_NUMBER
7890
Direction
W
STREET_NAME
ELEVENTH
STREET_TYPE
ST
City
TRACY
APN
25015004
ENTERED_DATE
5/17/2004 12:00:00 AM
SITE_LOCATION
7890 W ELEVENTH ST
RECEIVED_DATE
3/19/2003 12:00:00 AM
P_LOCATION
99
P_DISTRICT
005
QC Status
Approved
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SJGOV\rtan
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\MIGRATIONS\E\ELEVENTH\7890\PA-0300093\SU0004267\NL STDY.PDF
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EHD - Public
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Joe Day l�1 <br /> July 17,2003 <br /> Page 2 <br /> ground water. In addition;he indicated that the water well should be repaired or replaced due to <br /> the high level of nitrates. Most likely,it would need to be drilled deeper because the area is <br /> affected by poor ground water quality in the shallow zones.. <br /> Please.refer to our Soil Suitability,Nitrate Loading Study dated June 11,2003 for other pioject <br /> details and description of the nitrate loading calculation. <br /> The revised average daily flow•.parameters for the site are as follows: <br /> Table 1. <br /> Total estimated average daily.flow rate of the septic system. <br /> User Category Use Rate Scale Line Total <br /> Persons <br /> (Work Week al/da I erson Factor* . allda <br /> IOffice Staff <br /> (Mon-Sat) 1 30 6/7 27.7 <br /> Section 6.1.15,o,Sewage Standards. <br /> Customers(Mon-Sat) 5 10(estimated) 617 42.8 <br />" Grand Total: <br /> * Scale factor to account for different work weeks;617 is a six-day week.. <br /> The revised nitrate loading calculation uses an.Nw variable for 45 mg/L-N,to reflect the average <br /> concentration of waste water assuming good quality well water below 10 mg/L-N nitrate. A <br /> denitri.lication factor of 35%has been used for the dark colored, fine grained soil existing at the <br /> site. Please see Plate-1 and Plate 2 which contain the deep infiltration°of'rain for Tracy, <br /> California and the Nitrate Loading Calculation. <br /> The following table presents a summary of the revised nitrate loading calculation: <br /> Table 2. <br /> Summary of Nitrate Mass Balance Analysis. <br /> E <br /> LOA <br /> rA <br /> 17:6 0.62 70.5 45 35 1.07 1.0 <br /> *SSpG� <br />
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