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SR0082696_SSNL
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SR0082696_SSNL
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Entry Properties
Last modified
11/9/2020 9:00:13 AM
Creation date
11/9/2020 8:25:30 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2600 - Land Use Program
FileName_PostFix
SSNL
RECORD_ID
SR0082696
PE
2602
STREET_NUMBER
25723
Direction
S
STREET_NAME
ELLIS
STREET_TYPE
RD
City
TRACY
Zip
95376
APN
24013007
ENTERED_DATE
10/6/2020 12:00:00 AM
SITE_LOCATION
25723 S ELLIS RD
P_LOCATION
99
P_DISTRICT
005
QC Status
Approved
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EHD - Public
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Recharge Scenario 1 — CIMIS Ripon Station <br /> For the CIMIS-only scenario, the local percolation and evapotranspiration rates obtained <br /> through CIMIS are presented in Plate 13. The closest CIMIS station to the Site is <br /> Ripon, located approximately 10.7 miles away. Data for this station were available for <br /> 2017, 2018, and 2019. Based on the calculation shown, the estimated rate of recharge <br /> from percolating waters for the Ripon station is determined to be 3.00 inches. <br /> Recharge Scenario 2— CIMIS and WRCC Tracy Pumping Plant Stations <br /> For the scenario combining CIMIS and WRCC data (Plate 14), the closest WRCC <br /> station is the Tracy Pumping Plant (station 049001), located approximately 8.7 miles <br /> from the Site. This station is approximately two miles closer than the closest CIMIS <br /> station, and as a result is anticipated to have more accurate regional rainfall data. <br /> WRCC does not track evapotranspiration; consequently, evapotranspiration data from <br /> the Ripon station were utilized. Based on the calculation shown, the estimated rate of <br /> recharge from percolating waters for vicinity of the Site is determined to be 4.92 inches. <br /> Live Oak has selected this scenario for use in the nitrate loading calculation based on <br /> the proximity of the Tracy Pumping Plant station to the project Site. <br /> Quality of Rainwater <br /> Hantzsche and Finnemore listed 1 mg/L-N as the nitrate concentration of rainwater for <br /> their original calculation; in the past, Live Oak has also utilized this value for the nitrate <br /> loading calculation. <br /> In May 2019, Live Oak collected rainwater during two storm events in Lodi; in March <br /> and May 2020, Live Oak collected two additional samples at the same location. Each <br /> sample was collected in a clean, dry, stainless steel bowl, then decanted into a plastic <br /> container and placed on ice for transport. The samples were analyzed for nitrate by <br /> FGL Environmental of Stockton. <br /> Nitrate was detected in the May 17, 2019 sample at a concentration of 0.4 mg/L-N, in <br /> the May 19, 2019 sample at a concentration of 0.2 mg/L-N, in the March 16, 2020 <br /> sample at a concentration of 0.2 mg/L, and in the May 18, 2020 sample at a <br /> concentration of 0.4 mg/L. Live Oak then averaged the concentrations of the four <br /> samples, for a value of 0.30 mg/L-N to represent the nitrate concentration of rain. <br /> Because the San Joaquin County Environmental Health Department has requested that <br /> local and recent data be utilized wherever possible, the concentration of the Lodi <br /> rainwater been selected for use in the nitrate loading calculation. <br /> LOGE 20-44 Page 9 <br />
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