The Nickel Report

Barack Obama was seven months into his first term as President of the United States, the World Health Organization had declared a H1N1 flu pandemic, and the California State Water Resources Control Board (State Board) adopted the current Construction General Permit for Stormwater Discharges (Permit or CGP).  It was September 2009.  Now, having administratively extended the Permit since 2014 when, by its terms, the Permit expired, the State Board may, under a schedule released late last year, soon release a new draft CGP for public comment, with a goal of adopting it late this summer.

On March 2, 2020, the Environmental Protection Agency (EPA) proposed its new Multi-Sector General National Pollutant Discharge Elimination System Permit (MSGP), which authorizes the discharge of stormwater associated with industrial activity. 85 Feb. Reg. 12,288 (March 2, 2020). The 2015 MSGP expires on June 4, 2020. The MSGP authorizes stormwater discharges associated with a wide range of facilities and activities, including oil and gas, mining and mineral processing and manufacturing, among other operations.

The MSGP authorizes discharges in only those states where EPA is still the NPDES permitting authority (Idaho, Massachusetts, New Hampshire and New Mexico), Indian country, US Territories and other select jurisdictions. However, most states model their state-specific industrial stormwater permits on the EPA’s MSGP, which makes this permit important as the trendsetter.

One of the Supreme Court’s recurring environmental law topics is the scope of Clean Water Act (CWA) jurisdiction. Various aspects of CWA jurisdiction and implementation have been addressed over the years by the Court, including the meaning of “navigable waters” in U.S. v. Riverside Bayview Homes, Inc. (1985); Solid Waste Agency of N. Cook Cnty v. Army Corps of Eng’rs (2001); and Rapanos v. U.S. (2006), and judicial review of agency actions related to the applicability of the CWA dredge and fill permit program in Sackett v. EPA (2012) and U.S. Army Corps of Eng’rs v. Hawkes Co. (2016). Most recently, the Supreme Court heard oral argument on November 6 in County of Maui v. Hawai’i Wildlife Fund, et al., a case that addresses the applicability of the CWA’s prohibition on “point source” discharges to “navigable waters” to releases from point sources to groundwater. The Court granted certiorari to address whether releases from point sources that are carried to navigable waters by groundwater are regulated under the federal NPDES permit program or under state non-point source management programs.

Continuing its vanguard approach to environmental regulation, California is poised to incorporate Total Maximum Daily Load (TMDL)-specific requirements into its industrial storm water general permit (IGP). TMDLs are pollutant- and water body-specific and establish the maximum amount of a pollutant a water body can receive while meeting water quality standards. Once effective, these new requirements will provide additional avenues of attack for the already active Clean Water Act citizen suit docket.

California is considering the first-in-the-nation general industrial stormwater permit incorporating Total Maximum Daily Load (TMDL)-related numeric action levels (TNALs) and numeric effluent limitations (NELs). These new standards have the potential to further ramp up federal Clean Water Act (CWA) citizen suit litigation. Under the State Water Resources Control Board’s (State Board) proposed amendment to its stormwater general industrial permit (IGP), a “Responsible Discharger” whose stormwater discharge exceeds an applicable NEL automatically will be in violation of the IGP. Unless it complies with the permit’s existing exceedance response action process, it also will be in non‑compliance if its discharge exceeds an applicable TNAL.

Recognizing these consequences, and the difficulties some dischargers have complying with existing IGP requirements, the State Board is proposing two alternative compliance options. Touted as an effort to promote green infrastructure and water reuse, these options could revamp how industry manages stormwater. Both alternatives involve capture and reuse of the runoff from the 85th percentile 24-hour storm event, with the difference being the stormwater retention location. Under the “on-site” option, retention occurs at the facility. Under the “off-site” option, retention occurs at the local publicly owned treatment works (POTW).

On October 21 and November 3, EPA Regions 3 and 9 denied petitions from eNGOs for the agency to use its “residual designation authority” (RDA) to expand the universe of stormwater discharges that are regulated by the Clean Water Act (CWA) in specific watersheds in Maryland and California. See 33 U.S.C. § 1342(p)(2)(E); 40 C.F.R. §§ 122.26(a)(1)(v), (a)(9)(i)(D). This was an important decision by EPA, and any resulting litigation could have significant implications for businesses or activities with significant swaths of impervious surfaces, from which stormwater discharges may occur.