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Environment, Inc <br />.March 31, 2011 <br />,surface on 6 /7 /0.4 6 /8 /O5.it was.only 18.6 inches below, a <br />change• of. 5.85' feet in one year. By.I0 /2 /06'water was 3 inches <br />above the•ground.surface and after that the well was flooded or • <br />inaccessible suggesting 'the groundwater had reached the surface. <br />.Comparing th'e.two photos I have attached, one from 2004 and one <br />from.2009:shows that approximately 2.50 acres of the property is <br />now'cbvered with water or•wetland vegetation that did not exist <br />prior to Aggregates Induustries installing the slurry wall and <br />relocating the Bull Seep. <br />. My conclusion is'that the slurry wall is backing up ground <br />water and causing the flooding.' This.is consistent•with the note <br />fdr 6/8/2005 in AI's monitoring reports where the observer noted <br />"...substantial amount of water in relocated ditch due to slurry wall..." . Bull Seep may be <br />contributing ;to.th.e flooding from- surface flows or from an <br />inadecquate..channel carrying capacity, "but the elevated groundwa- <br />ter is from a much greater system wide problem. The monitoring <br />reports did not show a significant groundwater change after <br />relocation of Bull.Seep' until the slurry wall was complete. This <br />effectively blocks the flow of groundwater across the Hazeltine <br />Pit site 'increasing the groundwater table outside their site. <br />With no.place to go or a structure likea French Drain to regu- <br />late.the groundwater level it began to rise until reaching the <br />ground surface and flooding you property. The industry has been . <br />dealing with this problem along the South Platte -River from 88th <br />Aveto 132nd Ave for a couple of years so it is not a new prob- <br />lem. According to. State Law it is Aggregate Industries responsi- <br />bility to correct this problem and return the groundwater table <br />t� its historic elevations on the subject_property_. <br />My- .recommendation it that you contact' Mike Refer of Aggre- <br />gate Industries -(303) 985 -1070, .to work out a solution that <br />mutually benefits both parties. If this can not be accomplished <br />then I think your only recourse is to file a complaint with the <br />Division of Reclamation, Mining'& Safety on the grounds, that Al <br />has failed to minimi disturbance to the prevailing Hydrologic <br />'balance on the surrounding .properties . - <br />If 'you have .any questions. please. -call me. <br />Sincerely, <br />En! ironinent , Inc. <br />Stevan L. O'Brian <br />President <br />cc' file <br />page 2 <br />