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SR0085445_SSNL
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Last modified
10/26/2022 8:50:07 AM
Creation date
10/26/2022 7:52:03 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2600 - Land Use Program
FileName_PostFix
SSNL
RECORD_ID
SR0085445
PE
2602
STREET_NUMBER
19319
Direction
E
STREET_NAME
OAKWOOD
STREET_TYPE
RD
City
STOCKTON
Zip
95215
APN
18506006
ENTERED_DATE
6/23/2022 12:00:00 AM
SITE_LOCATION
19319 E OAKWOOD RD
P_LOCATION
99
P_DISTRICT
004
QC Status
Approved
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EHD - Public
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SAN JOAQUIN <br />COUNTY <br />Greatness grows here. <br />October 201h, 2022 <br />Jerry Matthews <br />19319 E. Oakwood Rd. <br />Stockton, CA. 95215 <br />RE: Soil Suitability & Nitrate Loading Study <br />19319 E. Oakwood Rd., Stockton, CA. 95215 <br />APN: 185-060-06, SR0085445 <br />Environmental Health Department <br />Jasjit Kang, REHS, Director <br />Muniappa Naidu, REHS, Assistant Director <br />PROGRAM COORDINATORS <br />Robert McClellon, REHS <br />Jeff Carruesco, REHS, RDI <br />Willy Ng, REHS <br />Steven Shih, REHS <br />Michelle Henry, REHS <br />Elena Manzo, REHS <br />The San Joaquin County Environmental Health Department (EHD) has reviewed the Soil Suitability/Nitrate Loading <br />(SSNL) Study, dated May 24, 2022 and has the following comments for your consideration. <br />The SSNL was prepared to determine the suitability of onsite wastewater treatment system (OWTS) usage and the <br />potential long-term impact of nitrate to groundwater from the proposed creation of a one -bedroom second unit <br />dwelling, that is already present on the site. The proposed development will be connected to an existing septic <br />system that served a former residence. <br />Based on the information provided, the EHD can make the following findings: <br />1. Based on the information provided in SSNL study, the EHD finds that the long-term addition of nitrates <br />added to the site, will increase nitrates to 14.2 mg/L. This amount is NOT within the acceptable level of 10 <br />mg/L of nitrates. However the use of an over -sized, 2,000 or more gallon septic tank, would mitigate the <br />additional amount of nitrates, and reduce output to an acceptable level. <br />2. Percolation tests conducted on May 3rd, 2022 yielded percolation rates of 250 minutes/in. (P1 -S) and 11.9 <br />minutes/in. (PI -D). At these rates, the location of PI -S would not be acceptable for the septic system, but <br />P1 -D will be with at least an eight -foot soil separation from groundwater. These requirements are <br />pursuant to San Joaquin County Onsite Wastewater Treatment Standard table 1.10.2. Per the SSNL Study, <br />groundwater on site is reported at 116 to 146 below surface grade. <br />3. The OWTS and its 100% replacement areas shall meet all required minimum setbacks stated in San <br />Joaquin County (OWTS) Standard and Well Standard. <br />If you have any questions please contact Michael Suszycki, Senior Registered Environmental Health Specialist, at <br />msuszycki sjgov.org or (209) 598-7001. <br />Z, -Pa,— <br />Steven Shih, REHS <br />Program Coordinator <br />1868 E. Hazelton Avenue I Stockton, California 95205 1 T 209 468-3420 1 F 209 464-0138 1 www.sjgov.org/ehd <br />
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