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San Marcos Street Rights -of -Way Parcels rev 03 -18 -09 <br />TEXAS RISK REDUCTION PROGRAM <br />RESTRICTIVE COVENANT <br />STATE OF TEXAS <br />COUNTY OF HAYS <br />This Restrictive Covenant is filed to provide information concerning certain environmental conditions <br />and use limitations pursuant to the Texas Commission on Environmental Quality (TCEQ) Texas Risk <br />Reduction Program (TRRP) Rule found at 30 Texas Administrative Code (TAC), Chapter 350, and <br />affects the real property (Property) described on Exhibits A and B, which are attached hereto and <br />incorporated herein by reference. <br />The shallow groundwater bearing unit underlying the Property contains certain identified chemicals of <br />concern causing the Property described on Exhibits A and B to be considered Affected Property as that <br />term is defined in the TRRP. <br />This Restrictive Covenant is required for the following reasons: <br />The Affected Property is subject to the TRRP requirements for properties with an area overlying <br />a TCEQ- approved plume management zone. A plume management zone is defined as an area of <br />groundwater containing concentrations of chemicals of concern exceeding the TCEQ- approved <br />protective concentration levels, plus any additional area allowed by the TCEQ in accordance <br />with 30 TAC § 350.33(f)(4). A plume management zone was established so that the chemicals of <br />concern in the groundwater are managed such that human exposure is prevented and other <br />groundwater resources are protected. The attached Exhibits A and B provides the location and <br />extent of the plume management zone. The following table lists the chemicals of concern and <br />their respective protective concentration levels: <br />CHEMICAL OF CONCERN <br />Protective Concentration Level <br />(mg/-) <br />Tetrachloroethylene (PCE) <br />0.005 <br />Trichloroethene (TCE) <br />0.005 <br />Vinyl Chloride <br />0.002 <br />1,1,2,2- Tetrachloroethane <br />0.0046 <br />1,2,3 - Trichloropropane <br />0.00013 <br />1,2- Dibromo -3- chloropropane <br />0.0002 <br />1,2- Dichloroethane <br />0.005 <br />Cis- 1,2- Dichloroethene <br />0.07 <br />Cis -1,3- Dichloropropene <br />0.0017 <br />Hexachlorobutadiene <br />0.0049 <br />Page 1 of 5 <br />