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ARCHIVED REPORTS XR0001724
EnvironmentalHealth
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2900 - Site Mitigation Program
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PR0522479
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ARCHIVED REPORTS XR0001724
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Last modified
5/17/2019 3:03:51 PM
Creation date
5/17/2019 2:40:36 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0001724
RECORD_ID
PR0522479
PE
2957
FACILITY_ID
FA0015299
FACILITY_NAME
GEWEKE LAND DEVELOPMENT & MARKETING
STREET_NUMBER
16
Direction
S
STREET_NAME
CHEROKEE
STREET_TYPE
LN
City
LODI
Zip
95240
APN
04323013
CURRENT_STATUS
01
SITE_LOCATION
16 S CHEROKEE LN
P_DISTRICT
004
QC Status
Approved
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EHD - Public
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r - <br />' Mr. Bob Marty <br /> Advanced GeoEnvironmental (North) <br /> GLDM <br /> IJune 28, 1996 <br /> Page 2 <br /> I <br /> I <br /> COMMENT <br />' Per our discussion this morning, the physicochemical data suggest that some degree of <br /> anaerobiosis may be developing within this system by virtue of observed reductions in pH, and <br />' slight to moderate elevations of nitrite and ammonium concentrations. While this has not, as yet, <br /> produced significant negative effects on the microbiology (although numbers are significantly <br /> lower than several months in the past), it is likely that a continued shift toward anaerobiosis will <br /> adversely effect microbial growth and metabolic processes. Additionally, development of <br />' significant anaerobiosis will have the potential for generating undesirable byproducts such as <br /> methane, ammonium gas, and hydrogen sulfide. While nitrate addition is indicated by the results, <br /> the fact that only a few wells are presently contaminated with detectable levels of petroleum <br /> hydrocarbons (per your information) suggests that simple oxygen addition (via sparging at this <br /> point) may be the most prudent course of action. This action should help to alleviate the <br /> development of anaerobiosis and, in turn, yield more favorable physicochemical and <br /> microbiological conditions. We recommend resampling after 2 to 4 weeks of sparging to <br /> reevaluate whether and to what degree such action has produced the desired results. Depending <br /> on these subsequent results, further action (such as nitrate and/or hydrogen peroxide addition) <br /> may be warranted. <br /> 1 <br /> Should you have any questions concerning this informat.ion, please do not hesitate to contact me. <br /> I <br /> I <br /> AKK:ch <br /> I <br />
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