2017-08-21_INSPECTION - M2008082

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B oral : • RlADY MIXED CONCRE t E COMPANY Aggregates 11778 Highk a} 5- Ft. Lupton. Colorado 806211 Main: (303)286-198 3 VIA ELECTRONIC MAIL ONLY August 21. 2018 Mr. Eric Scott, Environmental Protection Specialist Division of Reclamation, Mining and Safety Colorado Department of Natural Resources 1313 Sherman Street. Room 215 Denver, Colorado 80203 Re: Morton Lakes. Permit M-2008-82. AMOI August 1, 2017 DRVIS Inspection— Ruiz/Birminghatn Drainage Area Dear Eric: This letter to]lows on your August 1, 2017 inspection of Phase 3 and 4 of the Ilolton/Morton Lakes site and the Ruiz-Birmingham drainage area east of Highway 85, as well as my letter of the same date that I supplied to you at the inspection. Key facts and findings from the inspection and our August 1 letter confirm the following: (a) sources of eater in the drainage area appear limited to seasonal surface flow frotn upstream areas. direct precipitation. and storm drainage, (b) the drainage area historically shows large fluctuations in size and extent: (c) RMCC holds the right to utilize water rights associated with the Ifolton Seep owned by Holton Family, LLC: (d) neither the Ruiz'. Birmingham's or others in the West Hill Ct. subdivision own water ri(Thts associated with the drainage area or the i lolton Seep Ditch: and (e) even if operations in Phase 3i4 are impacting the drainage area. such impacts will be temporary because they are set to conclude at the beginning of 2018. The following additional information is being supplied to support the DR141S' inspection findings and our August I letter. Additional Aerial Photos In addition to the aerial photos we supplied with the August I letter that date from 1993. 2004 and 2006. our water engineering consultant. Bishop-Brogden Associates, located eight additional aerial photographs that date from 1949, 1953, 1972. 1975, 1978, 1999, 2011 and 2013. The