caldwell county regional water and wastewater planning study

The pollutant load reduction from the upgrade of existing treatment plants for theshown parameters would be:CBOD 5 or BOD5 (with 5 mg/l as limit): 76,412 pounds per yearTotal Suspended Solids (with 5 mg/l as limit): 129,442 pounds peryearNH 3 as N (with 2 mg/l as limit): 12,183 pounds per yearTable 14-5Annual Pollutant Load to Streams for Upgraded Existing Wastewater Treatment Plantswith 50 Percent Reuse of Reclaimed WaterPlantPermitted FlowCapacity, mgdExistingUpgradedwithReuseCBOD 5,pounds per yearExisting10 mg/lUpgraded5 mg/lwithReuseTotal SuspendedSolids, poundsper yearExisting15 mg/lUpgraded5 mg/lwithReuseNH 3 as N, poundsper yearExisting3 mg/lUpgraded2 mg/lwithReuseLockhart 1 1.1 0.55 33,503 8,376 50,254 8,376 10,051 3,350Lockhart 2 1.5 0.75 45,685 11,421 68,528 11,421 13,706 4,569Luling 1 0.5 0.25 30,457* 3,807 30,457** 3,807 4,569*** 1,523Luling 2 0.45 0.9 27,411 6,853 41,117 6,853 8,223 2,741Total 4 2 137,056 30,457 190,356 30,457 36,549 12,183**Based on 20 mg/l for BOD 5** Based on 20 mg/l for Total Suspended Solids*** Based on 3 mg/l for NH 3 as N, permit has no limitThe pollutant load reduction from the upgrade of existing treatment plants andimplementing reuse of 50 percent of the reclaimed water for the shownparameters would be:CBOD 5 or BOD5 (with 5 mg/l as limit): 106,599 pounds per yearTotal Suspended Solids (with 5 mg/l as limit): 159,899 pounds peryearNH 3 as N (with 2 mg/l as limit): 24,366 pounds per yearKlotz Associates Project No. 0972.000.000January 201014-19Caldwell County Regional Water and Wastewater Planning StudyFinal Report