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SU0009787 SSNL
EnvironmentalHealth
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PA-1300173
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SU0009787 SSNL
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Last modified
5/7/2020 11:34:13 AM
Creation date
9/9/2019 11:05:22 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2600 - Land Use Program
FileName_PostFix
SSNL
RECORD_ID
SU0009787
PE
2626
FACILITY_NAME
PA-1300173
STREET_NUMBER
13391
Direction
E
STREET_NAME
WEST RIPON
STREET_TYPE
RD
City
RIPON
Zip
95366-
APN
22817038
ENTERED_DATE
10/7/2013 12:00:00 AM
SITE_LOCATION
13391 E WEST RIPON RD
RECEIVED_DATE
10/4/2013 12:00:00 AM
P_LOCATION
99
P_DISTRICT
004
QC Status
Approved
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SJGOV\rtan
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FilePath
\MIGRATIONS\W\WEST RIPON\13391\PA-1300173\SU0009787\SS_NL STUDY .PDF
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EHD - Public
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V. CONCLUSIONS <br /> SSS§5A. The soils underlying the proposed filter bed disposal area for the Ripon Church of <br /> Christ show acceptable permeability that can be considered favorable for the long-term. However, <br /> the permeability of th soils will no doubt slow, primarily due to biomat formation. <br /> NLS§ 4.2, SSS§ 6. . From the soil chemistry test results, it appears that there is some <br /> denitrification and inhibitory nitrification potential within the soil profile due to the 12% clay <br /> content,th�,,soil pH and the soil cation exchange capacity. <br /> NLS§ 4.1. By sampling and testing the effluent from another SJC Church and quantifying the <br /> nitrogen constituents, a very accurate Total Kjeldahl Nitrogen(TKN) concentration was determined, <br /> thus increasing the accuracy of the nitrate loading calculations. The calculatednitrate loadin <br /> potential indicates the percolating effluent may have a resultant nitrate-nitrogen concentrati of 3.1 <br /> ppm, which is roughly one of the drinking water Maximum Contaminant Level (MCL). e <br /> percolating effluent will theoretically contribute a dilution effect to the water table and underlying <br /> aquifers where the nitrate concentration was tested at_!4ypm nitrate (19 ppm NO3-N). <br /> SSS§6.�The anticipated maximum Average Daily Flow(ADF) was calculated to be 826"- als on <br /> Sundays. The filter bed area is proposed to be 2,080 ft' and must accept this highest daily flow. The <br /> Application Rate at the soil-effluent interface depth of 36 inches was determined to be 0.800•gals/ft'/ <br /> day. A filter bed basal area of 2,080 82 x 0.800 gals/ftz/day= 1,664 gals/day, approximately double <br /> the highest anticipated ADF. A Long-Term Acceptance Rate (LTAR) of 0.2 gals/f/day gives an <br /> ADF of. 2,080 W x 0.2 gals/ft2/day=416 gals/day, which remains in the realm of a plausible flow <br /> volume. <br /> 10 <br />
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