5.6. & 5.7. PCSR 05-11-2010 - Laserfiche WebLink

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Septe~eher IG, 2009 Page 2 of 3 approximately 20 years of reserves. Under this mining plan, the SDA property will not be mined and reclaimed until at least 2070 (2050 start date for intense rni.ning plus -24 years). This mining plan is consistent with the information Tiller supplied the City while the 1994 Elk River Gravel Mining District Environmental Impact Statement (EIS) was being prepared. Table 3.1-1 Land Ownership and Usage of the EIS identifies properties by PID numbers. The PID numbers associated with the SDA property are shocnln as beiz7g mined through 2070 which is the last year considered in the EIS. Proposed Mining,Plans With Landfill Expansion However, if the landfill expands, our mining plans will be significantly different. The landfill requires access to the airspace provided by the SDA property at an accelerated rate. To accommodate their requirements we will. expedite our mining of the SDA property through a combination of re-orienting our Livonia mining operation and exporting material from Elk River to our other facilities that currently receive material from other markets. This will have the effect of compressing the timeframe which active mining takes place in this area of. Elk River. We believe this compression is desirable and znay allow adjacent properties to develop earlier in concert with Elk River Landfill's business park plan. Tiller's operating agreement with Elk River Landfill on the SDA property will be require us to progressively remove material from individual landfill cells by certain dates. The dates are reviewed on a regular basis and depending ozi Elk River Landfill's needs they will be adjusted as necessary. Mining on the entire 109 acre SDA will be completed by Tiller as directed by the new property owner, Elk River Landfill. The accelerated mining rate on the SDA property will not affect Tiller's mining property along County Road 33 and County Road 77 (CR33/77}. The material in the CR33/77 area is used to feed our wash plant operation located at 12450 Ranch Road NW. This operation is independent from the operations on our Livonia property and the SDA property. Final Reclamation Grads and Timing The intersection of TH 169 and 221st Avenue is proposed to be realigned and built as an interchange. 221st Avenue is also proposed to be extended to the east. The land east of the proposed TH 169/22151 Avenue interchange is at lower elevations than Iand west of the proposed interchange. In the future the City az~td area property owzlers may find it desirable to have the new alignment of 221st Avenue west of TH 169 at an elevation that is lower than what exists today. We may actually end up with 221St Avenue going under TH 169.