Middle Chattahoochee - Georgia's State Water Plan

Executive SummaryWater Demand in 2010 and 2050Agriculture,34 MGD,15%2010Municipal,88 MGD,39%Agriculture,37 MGD,13%2050Municipal,148MGD,52%Energy,95 MGD,44%Total ≈ 220 MGDIndustrial,4 MGD,2%Energy,95 MGD,34%Total ≈ 284 MGDIndustrial,4 MGD,1%Wastewater Flow in 2010 and 205020102050Energy,57 MGD,40%Industrial,3 MGD,2%Total ≈ 144 MGDMunicipal,84 MGD,58%Energy,57 MGD,28%Industrial,3 MGD,2%Total ≈ 200 MGDMunicipal,140MGD,70%Notes:1 - Data Sources: Middle Chattahoochee Municipal & Industrial Forecasts (Black & Veatch2010), Energy Forecasts (EPD 2010), Agricultural Forecasts (UGA 2010)2 - The 2005 thermoelectric water demands and returns were assumed constant through2050.3 - Values are totals for the entire water planning region, which includes portions of severalwatersheds.As part of the statewide water planning process, EPD developed water availabilityand water quality Resource Assessments (RA) for the State’s river basins andaquifers to evaluate the capacity of water resources to meet current and futuredemands for water supply and wastewater assimilation without causingunreasonable impacts. Potential shortcomings based on the results of these RA areclassified as “gaps.” A gap means that the existing or future conditions exceeded aRA metric, e.g., the sustainable yield of a specific groundwater aquifer is exceeded,thus, a potential “gap” exists in groundwater availability in that area. The Councildisagreed with the definition of the surface water availability gaps, as theassessment methodology did not consider desired river flows at specific locationsand did not prioritize lake level. The three resource assessments with both currentand future results summarized are shown in the following table.MIDDLE CHATTAHOOCHEESeptember 2011ES-3