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Environmental Impact Statement - radioactive monticello

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<strong>Environmental</strong> <strong>Impact</strong>s of Operation<br />

Discharge of sanitary wastes and minor chemical spills. Based on information in the GElS,<br />

the Commission found that<br />

Effects are readily controlled through NPDES permit and periodic modifications,<br />

if needed, and are not expected to be a problem during the license renewal term.<br />

The staff has not identified any new and significant information during the staff's independent<br />

review of the NMC ER, the scoping process, the staff's site visit, its evaluation of other available<br />

information, including the NPDES permit for Monticello and the Sanitary Sewer Wastewater<br />

Discharge Agreement, or public comments on the draft SEIS. Therefore, the staff concludes<br />

that there are no impacts of discharges of sanitary wastes and minor chemical spills during the<br />

renewal term beyond those discussed in the GELS.<br />

* Discharge of other metals in wastewater. Based on information in the GELS, the<br />

Commission found that<br />

These discharges have not been found to be a problem at operating nuclear<br />

power plants with cooling-tower-based heat dissipation systems and have been<br />

satisfactorily mitigated at other plants. They are not expected to be a problem<br />

during the license renewal term.<br />

The staff has not identified any new and significant information during the staff's independent<br />

review of the NMC ER, the scoping process, the staff's site visit, its evaluation of other available<br />

information, including the NPDES permit for Monticello, or public comments on the draft SEIS.<br />

Therefore, the staff concludes that there are no impacts of discharges of other metals in<br />

wastewater during the renewal term beyond those discussed in the GELS.<br />

* Water use conflicts (plants with once-through cooling systems). Based on information in<br />

the GELS, the Commission found that<br />

These conflicts have not been found to be a problem at operating nuclear power<br />

plants with once-through heat dissipation systems.<br />

The staff has not identified any new and significant information during the staff's independent<br />

review of the NMC ER, the scoping process, the staff's site visit, its evaluation of other available<br />

information, including the NPDES permit and the Surface Water Appropriations Permit, or<br />

public comments on the draft SEIS. Therefore, the staff concludes that there are no impacts of<br />

water-use conflicts for plants with once-through cooling systems during the renewaf term<br />

beyond those discussed in the GELS.<br />

* Accumulation of contaminants in sediments or biota. Based on information in the GElS, the<br />

Commission found that<br />

August 2006 4-5 NUREG-1437, Supplement 26 I

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