1999-02-19_INSPECTION - M1981302

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III IIIIIIIIIIIIIIII � 999 MEMORANDUM DEPARTMENT OF NATURAL RESOURCES COLORADO WATER CONSERVATION BOARD 1313 SHERMAN STREET,RM 721 DENVER,CO 80203 DATE: February 18, 1999 RECEIVED TO: File FEB 19 1999 FROM: Tom Browning �� Division of Minerals&Geology RE: Site Inspection for CU/Flatiron property in Boulder Background On February 18, 1999 CWCB participated in a field visit to the above referenced site located along the Deepe Farm Pit/South Boulder Creek floodplain. The purpose of the field visit was to perform an inspection of the levee located along the southeast side of the gravel pit. The inspection request was directed to the Division of Minerals and Geology (DMG), in writing, by a representative of Neighbors for a Livable Boulder. Concerns about seepage areas along the toe of the levee (landside) precipitated the inspection request. DMG then informed CWCB staff of the inspection date and requested a CWCB representative to attend. The field visit attendance is summarized in the table below. Name Affiliation Gregg Squire Division of Minerals and Geology Alan Sorensen Division of Minerals and Geology Tom Browning Colorado Water Conservation Board Alan Taylor City of Boulder Mike Hart Hart Environmental Consulting (representing LaFarge/Mobile) Ed Smelko Homeowner/representative of Neighbors for a Livable Boulder Summary of Findings Based on site observations, engineering judgment, and discussions with those in attendance at the time of the field visit, I have the following comments: • The existing berm/levee appears to be in excellent condition with no significant problems due to deep animal burrows, woody vegetation/tree roots, sloughing, settlement, sand boils, or erosion. • The placed riprap on the streamside of the levee is in good condition with no areas of missing stones or wild growth.