PRECA 12-07-1983 - Laserfiche WebLink

Home Browse Search

4 . 4) the extent to which environmental effects can be anticipa+ed and controlled as a result of other environmental studies undertaken by public agencies .or the project proposer, or of EIS"s previously prepared on similar projects." (6 MCAR 3.028) SUMMARY OF ANTICIPATED IMPACTS ENVIRONMENTAL IMPACTS Air Quality Air emissions will .result from traffic and waste combustion. Expected traffic volumes are-low,. however, and will not produce significant amounts of pollu- tants. Emissions of regulated pollutants from the incinerator are expected to be low as well, and the facility would be classified a minor pollution source by the Minnesota Pollution Control Agency (MPCA). The incinerator vendor estimates that less than 50 tons/year of any single pollutant will be. emitted by the facility. Estimates of nonregulated pollutants such as trace metals,. polycyclic organic matter, and acid gases are not available for the facility. Air pollutant modelling for the proposed 600 ton-per-day Ramsey/Washington incinerator, however, indicates no significant risks. to public health from :these substances.* The MPCA should require. modelling of criteria pollutants and an assessment of noncriteria pollutants as a part of its air emission facility permit process. This will help ensure that air quality standards are not violated and .that public health is protected. The MPCA should also evaluate the adequacy of the proposed stack height. If the stack height is found to be to low to maintain air quality at acceptable levels, the MPCA should require the .applicants to change it. Odors will not be emitted by the facility. High combustion temperatures will destroy odor-causing compounds, the tipping fl oor will be enclosed, and the facility will be kept under negative pressure. . Surface Water Quality Temporary surface water degradation-from increased runoff and erosion can be expected when the facility is built. This degradation should be controllable using standard practices. Stormwater retention ponds. will be used for long-term runoff control (Figure 3). The ponds will discharge at a maximum rate of 2I cfs to marshland adjacent to Rush Lake. The Rice Creek Watershed District must .give final approval of the applicant"s plans for site drainage and development. No discharges other than stormwater will reach the detention ponds. All ele- ments of the .ash handling system will be enclosed, and sa will not be a source of pollutants. All waste materials will be stored in an enclosed, area as well. The site lies within the shoreiand district of Long Lake. The City of New Brighton has not adopted shoreiand controls, therefore, shoreiand regulations suggested by the Minnesota Department of Natural Resources (DNR) for such * Metropolitan Council. Ramsey-Washington Waste-to-Energy Project Draft EIS. October 1983.