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COX 1 McLAIN <br />November 9, 2017 <br />TO: Eric Ratzman <br />FROM: Keith Dewey (Halff), Ashley McLain (Cox McLain) <br />RE: City ofSan Marcos Blanco River Environmental Assessment <br />AVO: 00194.170 <br />VVeare pleased bnsubmit our proposal for the above referenced project. |tkyour understanding that <br />the City of San Marcos (Co8K4) is seeking federal funding regarding Blanco River stream channel <br />improvements Umreduce the effects ofpotential future flooding. The proposed action imlocated east <br />of |nbmnstm&e 35 between State Highway 80 and Farm -to -Market Road 621. There are two options <br />currently under review, with Option 1 having a total area of disturbance at about 30 acres and Option <br />2 having m total area of disturbance at about 25 acres. The objective of this effort is to prepare a <br />National Environmental Policy Act (NEPA) Environmental Assessment (EA) document in accordance <br />with 24 Code of Federal Regulations (CFR) 50 and 24 CFR 58 under the U.S. Department of <br />Housing and Urban Development (HUD) Guidelines amwell am 31 Texas Administrative Code (TAC) <br />383under the Texas Water Development Board (TVVDB)Guidelines. <br />Option 1 of the federal action under review consists of the following components: <br />m Installation ofa4,000 foot long by 50 foot wide raised bicycle/pedestrian trail. <br />m Benching totaling 4,000feet. <br />* Installation ofa2.25Ufoot long bv4UOfoot wide overflow channel. <br />w Installation ofoGODfoot long by30Ofoot wide oxbow notch. <br />Option 2 of the federal action under review consists of the following components: <br />w Installation nfa4I00foot long by5Ofoot wide raised bicycle/pedestrian traii <br />• Benching totaling 4.00Ofeet. <br />• Installation of a 4,000 foot long by 500 foot wide overflow channel. <br />Based on our understanding of the proposed mnbon' the following scope of work has been <br />developed. For costing purposes, this scope of work assumes the EA will determine no eh]nUDomnt <br />nrpotentially significant impacts on the envirnommnt, and the proposed action will baapproved with <br />a Find/ng of No Significant |mpoo1 /FONSU. Should the EA find that an Environmental |nn9oct <br />Statement is required, a separate scope of work and budget will be required. <br />A breakdown of the beoko for this proposal is provided in Section 1 of this proposal, along with <br />relevant assumptions. The anticipated period of performance (POP) is seven (7) months. VVhika <br />aggressive, this is achievable within the ponurnebena of Government response and review times <br />outlined in Section 2. Should those times be exceeded, o POP extension and budget adjustment <br />will be required. The proposed action budget is $66.536. /\ budget summary bytask ieoutlined in <br />Section 3ofthis proposal and \sbased onthe tasks provided inSection 1. <br />Please let uoknow Jyou have any questions regarding the scope ofwork, POP, orbudget. <br />F-* �11�11111134- =111141 Lvr# <br />