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SR0081884 SSNL
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SR0081884 SSNL
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Last modified
4/7/2020 1:49:45 PM
Creation date
4/7/2020 1:39:46 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2600 - Land Use Program
FileName_PostFix
SSNL
RECORD_ID
SR0081884
PE
2602
STREET_NUMBER
10250
STREET_NAME
CHILDRESS
STREET_TYPE
RD
City
STOCKTON
Zip
95212
APN
12203009
ENTERED_DATE
3/13/2020 12:00:00 AM
SITE_LOCATION
10250 CHILDRESS RD
P_LOCATION
99
P_DISTRICT
002
QC Status
Approved
Scanner
TSok
Tags
EHD - Public
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Contreras Property <br /> Nitrate Mass Balance Calculation <br /> Nitrate Loading Calculations: <br /> Variable Value Units Description <br /> Q 350 gallons per day Effluent flow rate from report <br /> Nw 35 mg/L-N Effluent stream concentration from report <br /> A 1.30 acres Site area from report <br /> Nb 0.3 mg/L-N Concentration of rain water from report <br /> d 0.35 constant Denitrification factor from report <br /> R 7.91 inches per year Recharge rate of rainfall from report(evapotranspiration method) <br /> W 3.6 inches per year Uniform waste water loading for site calculation result <br /> Nc 7.3 mg/L-N RESULT: Long-term average concentration of percolating effluent <br /> Find Variable(IM: <br /> (W) in = (Q) gal x 11 W x 365 day(s) x 1 acre x 12 in x 1 site <br /> yr day 7.48 gal 1 year 43,560 ftz 1 ft (A)acre(s) <br /> 3.62 in/yr(site)=350 gal/day x(1 cu-R/7.48 gals)x(365 days/1 year)x(1 acre 143,560 sq-ft)x(12 in/1 ft)x(1 site/1.3 acres) <br /> Hantzsche-Fennemore Equation(Nc): <br /> N,= WN,,,(1-d)+RN, <br /> W+R <br /> 7.35 mg/L-N=((3.62 in/yr x 35 mg/L-N x(1-0.35))+(7.91 in/yr x 0.3mg/L-N))/(3.62 intyr+7.91 in/yr) <br /> Assumptions: <br /> 1. Total nitrogen concentration of influent waste stream is 35 mg/L-N. If different influent concentrations exist,use weighted average <br /> 2. Fraction of nitrate-N loss due to denitrification in the soil is 35%. <br /> 3. Estimated deep percolation of rainfall is 7.91 in/yr. <br /> 4. Background nitrate-N concentration of rainfall is 0.3 mg/L-N. <br /> LOGE 20-03 Addendum March 25,2020 <br />
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