6.0. SR 04-08-2002 - Laserfiche WebLink

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indicator of proper combustion, which is vital for not producing other contaminates. GRE is taking appropriate actions to resolve this issue, but staff will continue to monitor the situation. NRG Refuse Derived Fuel (R_DF) Plant - NRG's processing facility has a Fenwal system, which causes a chemical implosion to counteract explosions. There were 17 incidents (explosions or Fenwal discharges) at the plant in 2001 as compared to 7 in 2000. None of them caused major damage to the plant. The increased number of incidents is of concern, but no obvious cause has been discerned. To the extent possible, NRG tracks the source of the improper waste that causes an explosion and prosecutes violators. Old City Dump - The downward trend in contam/nate levels in the wells monitored for the old dump continued in 2001. The Department of Health recendy lowered the Health Risk Limit (HRL) for 112 trichlorotethylene (TCE). This chemical has been detected in the dump monitoring wells and in one residential well, which has since been abandoned. The current tests do not exceed the new HRL for TCE, but past test would have. To be cautious, staff recommends the city condnue the yearly tesfng of these wells. Lake Orono - Department staff continues to work with the Lake Orono Water Quality Task Force. Projects for 2001 included: a ban on fertilizer containing phosphorus, goose trapping and less restrictive hunting regulations, vegetative buffer strip demonstrations adjacent to the lake, fish stocking and water quality monitoring. Projects for next year include: participation in the "Clean Lakes Project" (which includes grant money), inventorying sources of erosion into the Elk River and identifying sources of pollution in Elk River's waterways. HERITAGE PRESERVATION COMMISSION (HPC) Building & Zoning prepares the packets for the HPC's monthly meetings and facilitates their projects. Besides reviewing development proposals to discern potential impacts to heritage or cultural resources, the HPC continues the work of inventorying these resources. The HPC is also working toward compiling a written history of Elk River.