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SR0081577 SSNL
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SR0081577 SSNL
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Last modified
2/10/2022 9:33:10 AM
Creation date
2/7/2020 11:44:26 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2600 - Land Use Program
FileName_PostFix
SSNL
RECORD_ID
SR0081577
PE
2602
FACILITY_NAME
ROBERTSON'S READY MIX
STREET_NUMBER
10500
Direction
S
STREET_NAME
HARLAN
STREET_TYPE
RD
City
FRENCH CAMP
Zip
95231
APN
19327019
ENTERED_DATE
12/30/2019 12:00:00 AM
SITE_LOCATION
10500 S HARLAN RD
P_LOCATION
99
P_DISTRICT
001
QC Status
Approved
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EHD - Public
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(---A lower CEC would have been expected in the shallow soils. This suggests that the surface and <br />subsurface soils have a medium potential for the retention of ammonium molecules for microbial and <br />plant root assimilation. The nitrate nitrogen concentrations at each depth is nearly the same, <br />indicating that even with high OM in the surface soils, this is not promoting higher nitrogen <br />concentrations at the lower depths. This may be attributable to a significant denitrification <br />environment. <br />NLS§ 3.3, SSS§ 5.3, 5.4. Table 1 below summarizes the analyzed soil physical and chemical <br />characteristics from the retrieved soil samples: <br />TABLE 1 <br />SOIL PROFILE CHARACTERISTICS AND <br />ANALYTICAL TEST RESULTS <br />SAMPLE LH. DEPTH SOIL TEXTURE <br />CLASSIFICATION <br />SOIL NITRATE- <br />NITROGEN CONTENT <br />pH AND <br />CATION EXCHANGE CAPACITY <br />In meq/100g <br />3 FT DEPTH Sandy Loam <br />(ML, SM) <br />15 ppm NO 3 -N 9.0 13.2 meq/100g <br />8 FT DEPTH Loamy Sand <br />(ML, SM, CL) <br />14 ppm N01-N 8.6 14.7 meq/100g <br />C. PERCOLATION TEST RESULTS <br />SSS§ 6.2. To assess the permeability of the shallow leachline soils and deeper soils indicative of <br />sumps, percolation test borings were completed in the location depicted on the project Site Plan <br />produced by Michael Orozco, PE who is the engineer for Robertson's. <br />SSS§ 6.3. After drilling, the sidewall of the shallow boring was scored with a pry-bar to open <br />potentially smeared soil surfaces that may have occurred. Two inches of pea gravel was placed at <br />the bottom and a three-inch perforated PVC pipe was inserted in each test boring. After these <br />procedures, the borings were pre-saturated with 12 inches of water approximately 24 hrs prior to <br />the start of testing. <br />SSS§ 6.4, 6.5. On November 21, 2019, percolation testing commenced at 0745 hrs. No standing <br />water was observed in either boring after the 24-hr soak period. Consequently, EHD Perc Test <br />Procedure 142 was conducted. Testing was done over a four-hour period to induce maximum soil <br />saturation. A summary of the perc test results with corresponding application rates in gallons of <br />effluent accepted per square foot of soil per day are illustrated below: <br />Page -3- <br />Chesney Consulting
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