The PIOGA Press
(by Lisa M. Bruderly and Gary E. Steinbauer)
On December 11, the U.S. Environmental Protection Agency and Army Corps of Engineers released a much-anticipated proposed rule that would redefine “waters of the United States” (WOTUS) under the Clean Water Act (CWA).1 As compared to the WOTUS definition in the Obama administration’s 2015 “Clean Water Rule” (CWR) (currently applicable in Pennsylvania), the proposed rule would significantly reduce the federal government’s jurisdiction over surface water, including wetlands, nationwide. Should the proposed rule be finalized as writ ten, the oil and gas sector could see significant changes in CWA permitting/compliance obligations associated with well sites and pipeline construction.
Revised definition limits federal government’s CWA jurisdiction
The proposed rule’s WOTUS definition is intended to provide predictability and consistency in identifying federally regulated surface waters. The agencies state the proposed WOTUS definition is “straightforward” and cost-effective while still being protective of the nation’s navigable waters and respectful of state and tribal authority over their land and water resources.
The proposal focuses on surface waters that are “physically and meaningfully connected to traditional navigable waters,” and relies largely on the “relatively permanent water” jurisdictional test established in the late Justice Antonin Scalia’s plurality opinion in United States v. Rapanos, 547 U.S. 715 (2006). The proposed rule includes the following six categories of waters that are WOTUS and also includes 11 categories of waters or features that are not WOTUS:
WOTUS includes
- Traditional navigable waters, including territorial seas (TNWs)
- Tributaries that contribute perennial or intermittent flow to TNWs
- Ditches that (a) are TNWs, (b) are constructed in a tributary, (c) relocate or alter a tributary such that they are a tributary, or (d) are constructed in an adjacent wetland so long as they meet the definition of tributary
- Lakes and ponds that (a) are TNWs, (b) contribute perennial or intermittent flow to a TNW in a typical year directly or indirectly through a jurisdictional water, or (c) are flooded by jurisdictional waters in a typical year
- Impoundments of otherwise jurisdictional waters
- Wetlands adjacent to jurisdictional waters
WOTUS does NOT include
- Any feature not identified in the proposal as jurisdictional
- Groundwater
- Ephemeral features and diffuse stormwater run-off
- Ditches that are not defined as WOTUS
- Prior converted cropland
- Artificially irrigated areas that would revert to upland if irrigation stopped
- Artificial lakes/ponds constructed in upland that are not defined as WOTUS
- Water-filled depressions and pits created in upland incidental to mining or construction activity, and pits excavated in upland to obtain fill, sand or gravel
- Stormwater control features created in upland to convey, treat, infiltrate or store stormwater run-off
- Wastewater recycling structures constructed in upland
- Waste treatment systems
The proposed rule’s definition of WOTUS is significantly different from the definition of WOTUS under the CWR, and, as such, would significantly reduce the extent of federally regulated waters. …