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SU0003307
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SU0003307
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Last modified
6/16/2020 12:07:10 PM
Creation date
6/16/2020 11:47:02 AM
Metadata
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EHD - Public
ProgramCode
2600 - Land Use Program
RECORD_ID
SU0003307
PE
2633
FACILITY_NAME
SA-89-23
STREET_NUMBER
2851
STREET_NAME
BOZZANO
ENTERED_DATE
11/7/2001 12:00:00 AM
SITE_LOCATION
2851 BOZZANO
P_DISTRICT
000
QC Status
Approved
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SJGOV\gmartinez
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EHD - Public
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Nolte and Associates prepared a report addressing nitrate and salinity impacts <br /> to shallow and intermediate groundwater in December, 1988. From some initial <br /> sampling requested by the Stockton East Municipal Water District, the quality <br /> of local drinking water wells was found to be good and relatively unaffected <br /> by the poorer quality shallow groundwater at that time. This was found <br /> despite the fact that many wells are screened starting at 50 feet, which would <br /> create a pathway for possible mixing between the shallow and intermediate <br /> aquifers. The conclusion of that report was that QAP wastewater disposal <br /> operations could have a slight adverse impact on shallow groundwater salinity <br /> levels and would have no significant impact on drinking water wells. These <br /> conclusions were based on area loading rates and are therefore still valid for <br /> the proposed wastewater disposal practices. <br /> Details on salt loadings from the wastewater are as follows: Irrigated <br /> pasture can use approximately 4.2 acre-ft/acre/yr. Groundwater with TDS <br /> (mainly fixed) concentrations of 120 mg/L would add 590 lb/acre of salt if <br /> used for irrigation. Irrigating with wastewater will add 3,940 lb/acre per <br /> year or an additional 3,350 lb/acre/year. These calculations assume that a <br /> pasture's total evapotranspiration requirement will be met by the applied <br /> wastewater and that fixed dissolved solids concentrations are about 800 mg/L. <br /> Supplemental well water usage will reduce the actual salt loading on the <br /> proposed irrigation fields. For comparison sake, water up to 700 mg/L is <br /> rated as excellent for irrigation uses by the State Water Resources Control <br /> Board. <br /> ODOR MONITORING AND ODOR EVENT MITIGATION PLANS <br /> QAP personnel perform and record daily subjective monitoring for odors at all <br /> fields receiving wastewater. In addition, odor monitoring is performed by <br /> Schraeder and Associates on a monthly basis using an activated carbon - <br /> dilution scentometer. If a significant odor generation event occurs at a <br /> field or the pond, or if there are verifiable complaints by neighbors, QAP <br /> will have Schraeder and Associates immediately perform an investigation. <br /> In addition, QAP will keep excess CIO, on hand at all times for fast odor <br /> control should that be necessary. <br /> Other measures will continue to be taken to prevent the occurrence of odors <br /> near local residents. These include the use of remote fields for wastewater <br /> application as much as possible and the blending of wastewater with fresh <br /> water for any fields where surface irrigation is to be practiced. Fields 1 , 2 <br /> and 3 will only be used for summertime wastewater application when there are <br /> no alternate fields available, or to keep pasture grass alive. Any use of <br /> fields 1 , 2, and 3 will also be scheduled for night hours as per residents' <br /> requests whenever possible. <br /> SUMMARY <br /> Additional details have been provided for existing and proposed wastewater <br /> treatment and disposal operations at Quality Assured Packing, Inc. The <br /> proposed pretreatment facilities and land application fields should provide <br /> 6 <br /> RP102-0 <br />
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