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Department of the EnvironmentWater Allocation in MarylandIssues and Strategies for thePiedmont RegionPiedmont Water Allocation Current allocation policies The perceived problem SB 674 Proposed strategy
Water balanceAvailable total adjustedeffective drought-yearrecharge– 1-in-10 yr droughtprecipitation rates– Runoff /evapotranspiration– Baseflow needs forstreams– Losses to impervioussurface– Land owned or controlledby the municipalityThe problem: water balance andsmart growth in the Piedmont Water balance generallyallocates enough waterfor about 1 residentialunit per acre Smart growth minimum3.5 residential units peracre Municipalities can– acquire additional land– obtain water rights fromlandowners
SB 674 Also known as“Brinkley Bill” Passed in 2008 Codified in Laws of Maryland, Chapter 197 Allows MDE to give “priority” to municipalitieswhen allocating water in Carroll, Frederick, andWashington CountiesProposed strategy development Workgroup meeting since 2009 Workgroup representatives fromcounties, municipalities, agriculturalcommunity, developers, consultants,state agencies Strategy still in development
Goals of proposed strategy Allow MDE to allocate more water tomunicipalities in Carroll, Frederick, andWashington Counties than would be allocatedunder current policies Address water needs for priority funding areas Continue to preserve and protect the resource Preserve water rights of property ownersHow it differs from current policies Assesses water availability on a Maryland 12digit hydrologic unit Estimates potential impacts of other usersbased on consumptive use rather thanpermitted allocation Allocates water that is not directly recharged onland owned or controlled by the municipality
What the policy will NOT do Will not provide water for growth beyondthe PFA established in 2000 Will not supercede normal permittingrequirements Will not overcome issues related tosustainable well yieldProposed strategy:Municipality to conduct analysis and submit withits application Existing allocations Existing demand Analysis of additional demand for priorityfunding areas (as of 2000) Analysis of potentially available water withinwatersheds
Demand Year 2000 priorityfunding area Current use fordeveloped areas Future use forundeveloped lots basedon current zoning Residential demandbased on buildable unitsin agreement with MDP
Availablemunicipalgroundwater Based on landowned or controlled bythe municipality If available water isgreater than projectedfuture use within thePFA, no additionalallocation will beconsideredPotentiallyavailable water Evaluate FOR EACHWATERSHED Watershedgroundwater– 50% of available totaladjusted effectiverecharge– Adjust if watershedincludes land ownedor under aneasement to DNR
Upper Potomac Run watershedAccount forexistingpermittedconsumptiveusesType of usePermitallocation(Avg GPD)%consumptiveAvg GPDconsumptiveRestaurant4001040GW heat pump5,00000GW heat pump2,0000060,00010060,000Golf courseLlama farm400100400Subdivision (on septic)11,800151,770Subdivision (on septic)11,600151,740Total consumptive use63,950Upper Middle Run watershedPotential usesLand UseLow-density residentialMedium-densityresidentialHigh-density residentialInstitutionalAcreage762Avg asture1190Deciduous forest2800Water3.490Wetlands4.450Ag building, breeding,training facilitiesTotal4.38,0001,80638,125Totalwatershed 1,872 acresMunicipallyowned land 65.5 acres
Upper Middle Run watershedTotal availablerecharge, gpd670,89650% of availablerecharge, gpd335,44850% of availablerecharge, gpd335,448Existing use, gpd- 121,238Existing uses (gpd)Municipal useOthermunicipalities'suseNon-municipalpermitted useResidential (well &septic)43,0000Potential uses, gpd- 38,125Available foradditional allocation,gpd176,08563,95014,288121,238Criteria for approval Must not result in unreasonable impacts to other users Subject to normal permitting requirements Must demonstrate that wells can sustainably produce theprojected yield Must notify other municipalities within the watershed Capacity management plan, water conservation plan,adequate financial guarantees
Maryland Department of the EnvironmentLyn PoormanWater Supply ProgramMaryland Department of 0 Washington Boulevard Baltimore, MD 21230-1718410-537-3000 TTY Users: 1-800-735-2258www.mde.state.md.usWater balance policy
Golf course 60,000 100 60,000 Llama farm 400 100 400 Subdivision (on septic) 11,800 15 1,770 Subdivision (on septic) 11,600 15 1,740 Total consumptive use 63,950 Upper Middle Run watershed Total watershed 1,872 acres Municipally owned land 65.5 acres Land Use Acreage Avg GPD consump
