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SR0084620_SSCRPT
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SR0084620_SSCRPT
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Last modified
2/24/2022 1:04:22 PM
Creation date
2/24/2022 12:49:32 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2600 - Land Use Program
FileName_PostFix
SSCRPT
RECORD_ID
SR0084620
PE
2603
STREET_NUMBER
15766
Direction
N
STREET_NAME
DE VRIES
STREET_TYPE
RD
City
LODI
Zip
95242
APN
02517003
ENTERED_DATE
12/15/2021 12:00:00 AM
SITE_LOCATION
15766 N DE VRIES RD
P_LOCATION
99
P_DISTRICT
004
QC Status
Approved
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EHD - Public
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bathroom. The existing system was also depicted in the sketch. This permit has <br />been included in Appendix 4 of this report. <br />6.2 Water Testing Results <br />Live Oak collected a water sample from the domestic well on the Site on May 11, <br />2021. The sample was analyzed for nitrate and dibromochloropropane (DBCP) <br />per San Joaquin County Environmental Health Department policy. <br />As required by the laboratory, the sample was collected in a plastic container and <br />two glass vials for nitrate and DBCP analysis, respectively. Trip blanks were also <br />utilized. The sample was placed on ice and transported under chain of custody <br />to FGL Environmental, Stockton. <br />Nitrate was detected in the water sample at a concentration of 18.6 mg/L-N. <br />DBCP was detected at a concentration of 0.29 µg/L. The laboratory analytical <br />results are attached as Appendix 5 of this report. <br />Prof. Shaw provided Live Oak with a report of the nitrate analysis performed by <br />Precision Enviro-Tech on a sample from the irrigation well on the Site. The <br />sample was collected on December 6, 2021 and was found to contain nitrate at a <br />concentration of 14.2 mg/L-N (Appendix 5). <br />Nitrate is commonly detected in shallow ground water aquifers of the Central <br />Valley. Application of fertilizers, livestock waste, and untreated septic tank waste <br />can all contribute to nitrate in ground water. Nitrate is mobile and tends to <br />accumulate in shallow ground water zones. Based on work in the Sacramento <br />Valley from the early 1900s, it is estimated that under "natural" conditions, <br />ground water contains nitrate at concentrations no more then about 3 mg/L-N. <br />Nitrate may be increasing in areas with concentrations of 5.5 mg/L-N or more <br />(Hull, 1984). The US EPA has set the Maximum Contaminant Level (MCL) for <br />nitrate at 10 mg/L-N. <br />Although nitrate is a naturally -occurring compound necessary for plant growth, it <br />can cause health problems when present at high levels in drinking water. The <br />most common health effect of nitrates in water is methemoglobinemia, or blue <br />baby syndrome, which results in reduced oxygen supply to vital tissues. <br />Pregnant women and certain others can also develop methemoglobinemia. <br />Symptoms include a bluish color of the skin, as well as headache, dizziness, <br />weakness, and difficulty breathing. Ingestion of high levels of nitrates over time <br />can also lead to gastric problems. <br />DBCP is a nematocide and soil fumigant for vegetables and grapes. It is known <br />to cause male reproductive effects and is classified as a probable human <br />carcinogen. Most domestic use of DBCP was discontinued in 1977 through <br />1979. The US EPA set the MCL at 0.2 parts per billion (ppb, equivalent to �ig/L) <br />LOGE 2123 5 <br />
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