2024-08-05_REVISION - M1986123 (4)

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i Findings and Resolution Stroh Pit Special Re,*-ie-*N- Page 6 2017. A PMIO and Crystalline Silica Air Pollution Dispersion Modeling Study was conducted for the project and submitted to the Larimer County Department of Health. The findings for silica exposure predicts 6 times less than the EPA recommended exposure limits. An application for a construction APEN will also be needed. The Health Department has evaluated the information provided by applicant and has found that it meets the relevant standards. The Health Department's comments provided a detailed analysis of the report and standards. The PMinand Crystalline Silica Air Pollution Dispersion Modeling Study was reviewed by Dr. Scott Phillips, M.D. medical toxicologist and Associate Professor at the University of Colorado who found no negative health impact to nearby residents, including sensitive populations. Applicant also testified to basic measures they will implement to meet air quality standards. Section 5.12 Water Quality: Tile applicant has submitted information with respect to the needed discharge permits. Drainage Plans were conducted in 2009 and approved by Larimer County Engineering. A Colorado Department of Public Health and Environment Discharge Permit and Stonnwater Management Plan was submitted by the applicant to the State in July 2017. A final pen-nit will be issued prior to beginning earthwork. Additionally, stormwater and dewatering outfalls will be sampled as part of the state Discharge Monitoring Report requirements. Water pumped from the pit will be routed through the Kirtright pond to allow settling of sediment before discharging to the river. All fuel storage will occur outside of the floodplain and a Spill Prevention control and Countermeasure Plan (SPCC) will be implemented. A rapid re-vegetation of disturbed areas will be implemented thereby reducing exposed sediment. Section S.16 Fences: Any perimeter fencing for the project will be required to comply with the requirements in Section S.16.2. Section 5.15 Site Lighting_ Any site lighting will be required to comply with the provisions of this section and the standards. d. The proposed use it-ill not result in a substantial adi,erse iinpact on property-in the r-icinity of the subject property,. The application referrals have noted the potential for impacts of noise, air and water quality. Air and Water Quality have been considered and addressed as stated above. Compliance with the Larimer County Noise Ordinance is required and the applicant has shown they can meet the technical requirement. Noise is unwanted sound 6