Definition of Dewatering, etc.

Dewatering Techniques and Solutions for Construction Projects

Dewatering and construction dewatering are terms used to describe the action of removing groundwater or surface water from a construction site. Normally the dewatering process is done by pumping or evaporation and is usually done before excavation for footings or to lower water table that might be causing problems during excavations. Dewatering can also refer to the process of removing water from the soil by wet classification. The right dewatering plan can be used to be in compliance with some of the Best Management Practices related to the SWPP [Stormwater Pollution Prevention] plan.

Available Water Quality General Permits

The discharge of wastewater and certain types of stormwater into or adjacent to water in the state (HTML) must be authorized by the Texas Commission on Environmental Quality (TCEQ). This authorization may come in the form of an individual discharge permit or a general permit. Seeking authorization under a general permit is generally less time-consuming than authorization under an individual permit and usually requires fewer resources.

The status of general permits that are being renewed or amended will be discussed at quarterly Water Quality Advisory Workgroup meetings, which are open to the public.

Innocent Owner/Operator Program (IOP)

The Texas IOP provides a certificate to an innocent owner or operator


The Texas IOP, created by House Bill 2776 of the 75th Legislature, provides a certificate to an innocent owner or operator if their property is contaminated as a result of a release or migration of contaminants from a source or sources not located on the property, and they did not cause or contribute to the source or sources of contamination. Like the Texas Voluntary Cleanup Program (VCP), the IOP can be used as a redevelopment tool and as a tool to add value to a contaminated property by providing an Innocent Owner/Operator Certificate (IOC). However, unlike the VCP release of liability, the liability immunity acknowledged in IOCs does not cover future owners/operators. Future owners or operators are eligible to enter the IOP and may, if otherwise qualified, receive an IOC, but only after they become an owner or operator of the site.


State laws associated with the IOP program are located in the Health and Safety Code 361.751-361.754.

State rules associated with the IOP program are located in the Texas Administrative Code 30 TAC 333.31-333.43.