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<br /> landowners in the Lake Decatur watershed have an opportunity to include addressing erosion on 57 tracts of farmland and 5000 ft. of
<br /> participate in federal, state, and local cost-sharing programs streambank to reduce sedimentation from entering the Sand Ci2ek �
<br /> designed to help them pay for and install conservation measures. basin of Lake Decatur. These practices will include 28 acres of
<br /> waterways, 14,200 ft. of terraces, 7 grade stabilization structures,
<br /> Existing state and local programs include the City of Decatur's 50 acres of filter strips, 13,000 ft of subsurface drainage (for
<br /> cost-sharing and state CPPfunding. Both are administered through application of conservation practice only) 16 WASCOBS (water
<br /> the Macon County Soil and Water Conservation District. Both of and sediment control basins), conservation tillage methods on
<br /> these programs can be used to install structural measures needed 1000 acres of cropland, and 5000 ft. of streambank protection.
<br /> to control ephemeral and gully erosion sources in the Sand Creek The Lake Management Division has requested additional monies
<br /> Watershed. from City of Decatur to target Sand Creek watershed as a high
<br /> priority watershed to implement a land treatment plan.
<br /> ALTE�I��IAT�VF Effects - Major impacts relating to economics, enviroment, and
<br /> FO����'LAT�0� social conditions will occur as a result of this plan. Significant
<br /> reductions in erosion and sediment yields will have both onsite
<br /> and off-site impacts by maintaining productivity of crop fields,
<br /> Because the City of Decatur will implement a dredging plan for decreasing sediment as a non-point source of pollution to Lake
<br /> Lake Decatur, City leadership has requested a list of alternatives Decatur, improving wildlife habitat on erosive soils that will be part �
<br /> be developed which consists of different levels of land treatment of the conservation reserve program,and protecting and enhancing i
<br /> in the Sand Creek watershed which will effectively control erosion. the Sand Creek basin after dredging has been completed. J
<br /> Alternative#1 - No delivery of service for conservation needs. Erosion and Sediment Yield: I
<br /> This alternative assumes that because of other priority workloads, . Sheet and rill erosion will be reduced by 2000 tons per year 1
<br /> lack of current funding from local sources, or no action taken on inventoried Cropland acres ( 50% reduction in sediment) I
<br /> regarding watershed management, staff is not available to supply I
<br /> technical assistance to producers who are experiencing erosion ' 5000 ft of severely eroding streambanks will be treated by
<br /> problems. Lake Decatur will continue to receive sediment from bioengineering techniques reducing soil loss by 1400 tons
<br /> the Sand Creek watershed. (93/o reduction in sediment).
<br /> • Ephemeral erosion will be reduced by 2000 tons per year(73%
<br /> Effects - Planned dredging activities in the Sand Creek basin will reduction in sediment).
<br /> restore approximately 1 % of total storage area in Lake Decatur. . Gully erosion will be reduced by 435 tons per year (100% I
<br /> Sand Creek will continue to contribute 7339 tons of sediment i
<br /> annually to Lake Decatur which will impact negatively on water reduction in sediment).
<br /> supply, both in water storage and water quality standards. �
<br /> According to the Lake Decatur Dredging Plan, the Sand Creek �
<br /> basin is one of three areas experiencing the most significant SO'LVT�Q�S
<br /> sedimentation degradation including:
<br /> 1) Highest percentage water volume loss The Sand Creek watershed has traditionally been a low priority ;
<br /> area for workload because of lack of interest and few sign-ups in ,
<br /> 2) HighestLakefrontpropertyrecreationandaestheticvalueloss state, local, and federal cost-share funding programs for ,
<br /> resulting in less than optimal property values. conservation practices. Now that the sources of erosion have been �
<br /> 3) Highest community recreation and aesthetic loss. identified,the following action items will be implemented in FY'2000. �
<br /> If no action is taken to correct sedimentation problem the City of ' Hold public meeting in Sand Creek watershed to discuss
<br /> Decatur will suffer economically because of decreasing property inventory findings with producers and other stakeholders. j
<br /> values in the Sand Creek basin area. • Develop mailing list to target all producers for resource
<br /> planning needs.
<br /> Alternative#2-Utilize on-going program with additional local
<br /> cost share incentives to promote conservation land treatment. • Increase the application of resource management systems I
<br /> This alternative consists of conservation land treatment needed by 30/o. ,
<br /> in the Sand Creek watershed as documented on the excel • Piggyback existing federal, state, and local programs to
<br /> spreadsheet in addition to stabilizing severely eroding streambanks fund erosion control measures. �
<br /> in the Sand Creek watershed area. Conservation treatment will
<br /> TABLE I
<br /> Sediment Yield Saved Total %Reduction '
<br /> Sheet and Rill 4,026 tons/yr 2,000 tons 2,026 tons 50%
<br /> Ephemeral 1,378 tons/yr 1,000 tons 378 tons 73°/o %
<br /> Gully 435 tons 435 tons 0 tons 100% '
<br /> Streambank 1.500 tons/vr 1.400 tons 100 tons 93% �
<br /> 7,339 tons/yr 4,835 tons/yr 2,504 tons * 66%
<br /> * By following alternative#2,an estimated 4835 tons of sediment will be saved resulting in a 66%reduction of sediment from entering the
<br /> Sand Creek basin area of Lake Decatur. ',
<br /> The U S Department of Agncul�ure(USDA)pi'ohibits discnminahon in all its programs and activih s on!he basis of�ace color.na�ional ongm.sex rehgion.age,disabihty,pohhcal beliefs sexual�neNa�ion or mantal or`amtiv �'
<br /> s�atus fPlot all prohibited bases apply to all programs�Persons with disabtltlies who reqwre altemahv neans br minmumcation of program mrormahon IBraille.large pnn�..audio tape,ete�should coniaa USDA�;TARGET Center !
<br /> at 202-j20-2o00(voice and TCB).
<br /> To ftle a�;omplain�of�;iscnma�a.i,n �,vrne J.,� �-i_c'o _F of�ivJ .�,hL �cnn 326 W 1Nhden 9udding,;400 Indepen,.,,n_e Aven i ��N l�lashi�;ien CC 2.,1�.-;11G or �il,2�2??2C 5969 ivoice and�UBI USDA u i
<br /> 4 an?qual opportuntly provider and emplcyer
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