Section 3: Water Resources
TxDOT and our Contractors must comply with various rules, regulations, and permitting requirements for water resources. Generally, most
of
the permits for construction
will be obtained prior to the start of construction. In limited
cases, the process to obtain a permit
will still be ongoing after construction has started and these ongoing process must
be captured in the Construction Management Plan (CMP). TxDOT and the Contractor will need to be mindful of project phasing and the CMP
to ensure that non-permitted actions are avoided until proper permits are obtained
. Refer to the
or contact ENV’s Natural Resources Management Section for
additional information on compliance and/or permitting associated with Sections 303(d), 401, 402, and 404 of the Clean Water Act, Sections 9, 10 and 14 of the Rivers and Harbors Act, Edwards Aquifer Rules, the Safe Drinking Water Act, the Texas Commission on Environmental Quality Memorandum of Understanding, the Trinity River Corridor Development Certificate process, Executive Order 11990 Protection of Wetlands, Executive Order 11988 Floodplain Management, the International Boundary and Water Commission licensing program, the Wild and Scenic Rivers Act, the Coastal Zone Management Act and Texas Coastal Management System, and the General Land Office Memorandum of Understanding.
Complying with US Army Corps of Engineers Requirements for Work in Waters of the United States, Section 404
Section 404 of the Clean Water Act aims to restore and maintain the chemical, physical, and biological integrity of waters of the U.S. by regulating the discharge of dredged or fill material into these waters.
Waters of the U.S. may include but are not limited to streams, wetlands, some open water, and some ditches. The following common construction activities typically require a permit from the U.S. Army Corps of Engineers (USACE):
- land clearing in waters of the U.S.
- placement of dredged or fill material, temporarily or permanently, within waters of the U.S.
- bridge or culvert replacements
- any heavy equipment use in waters of the U.S.
- converting any water of the U.S. to a different type of water of the U.S. or to upland.
- draining a wetland
In order to comply with Section 404, TxDOT must:
- Obtain any required USACE permit for proposed work before work begins in TxDOT ROW. Contractors are responsible for obtaining any off-site permits, includingthose neededfor PSLs. Check the CMP for any permits that have notbeen obtainedbefore project letting.
- Review the commitments pertaining to the USACE permit in the environmental permits, issues, and commitments (EPICs) section in the PS&E. A copy of the permit will also be kept in the SWP3 Binder for easy access and reference.
- Ensure that the contractor is aware of any waters of the U.S. in the area where work will occur, and make sure these are delineated,and any impacts are avoided, minimized, and permittedprior to construction.
- Ensure that the contractor is familiar with the work and associated impacts that have been authorized by the Section 404 permit.
- Ensure that the contractor adheres to all agreements, mitigation plans, general conditions, and BMPs required by the permit.
- Ensure change orders are reviewed by environmental staff to they can determine if proposed changeswould necessitate a modified or newUSACE permit prior to work being conducted. When contractor-initiated changes to the issued Section 404 permit are desired, it is the contractor’s responsibility to obtain a new or revised Section 404 permit from the USACE at the cost of the contractor (unless otherwise agreed upon by both parties). In this situation, no claims for schedule delays are allowed.
- Understand that failure to comply with all permit conditions may result in contract work stoppages being issued by the USACE or TxDOT.
Complying with TCEQ requirements for Work Over the Edwards Aquifer
The TCEQ administers the Edwards Aquifer Protection Program (EAPP) to prevent pollution of the Edwards Aquifer to protect groundwater use and maintain Texas surface water quality standards. If work involves soil disturbing construction activities in areas identified as the Edwards Aquifer Recharge Zone, Edwards Aquifer Contributing Zone, and Edwards Aquifer Transition Zone in the following eight counties, EAPP compliance may apply: Medina, Bexar, Comal, Kinney, Uvalde, Hays, Travis, and Williamson.
In order to comply with the EAPP, TxDOT must:
- Obtainany required EAPPapprovalsvia required submittals such as a Water Pollution Abatement Plan (WPAP) or Contributing Zone Plan (CZP) from the TCEQ before work begins.
- Review the commitments made in the WPAP, CZP or other EAPPapprovalin the EPICs section in the PS&E. A copy of the approval will also be kept in the SWP3 Binder for easy access and reference.
- Ensure that the contractor adheres to the stipulations of the EAPPapprovalincluding associated BMPs and performance of the work in accordance with contract requirements.
- Ensure that the contractor has the necessary information to recognize subsurface voids in bedrock. This information is available from theDistrict Environmental Quality Coordinate (DEQC). If a subsurface void is encountered, the contractor must notify the TxDOT District DQEC. The void must be protected until an evaluation is completed and the contractor is cleared to continue work near the void.
- When contractor-initiated changes in the construction methodology affect the previously compliant impacts to the Edwards Aquifer, including encountering subsurface voids, immediately notify the district environmental coordinator and EAPP engineer, who may then need to notify the TCEQ and/or assist in obtaining a revised EAPPapprovalor void closure authorization. Contractor initiated changes will be the responsibility of the contractor, such as “In this situation, no claims for schedule delays are allowed.”
Complying withthe Coastal Zone Management Act and Texas Coastal Management
the Coastal Zone Management Act and Texas Coastal Management
Work in coastal counties including Orange, Jefferson, Chambers, Harris, Galveston, Brazoria, Matagorda, Jackson, Calhoun, Victoria, Refugio, Aransas, San Patricio, Nueces, Kleberg, Kenedy, Willacy, and Cameron counties, may trigger Coastal Zone Management Act (CZMA) compliance requirements under the Texas Coastal Management Program (TCMP).
In order to comply with CZMA and the TCMP, TxDOT must:
- Ensure that the appropriate consistency determination and associated documentation, if applicable, is recorded in the project file or record.
- Ensureanychange orders are reviewed by environmental staff for consistency with CZMA and TCMP requirements.