SWM-CS 971229FYI: The following is a letter we are sending out to all the cities with less than 100,000
in population that are in the urbanized area per 1990 census. Those cities are directly
impacted by the proposed storm water Phase II rules. Although your city does not fall
into this category, USEPA is required to evaluate other cities for inclusion in the
program. We invite you to join us in the discussions of how the region might address
the new regulations in a unified regional strategy for mutual benefit.
V GP &*. A.Wd.A..,,
Office of Water
OFFICE OF WASTEWATER
MANAGEMENT
PROPOSAL FOR NEW STORM WATER REGULATIONS THAT PROVIDE INCENTIVES TO
ORIGINAL STORM WATER REGULATIONS
Today's proposal would provide a targeted expansion of the current EPA storm Water program by listing
two additional sources of storm water that need to be regulated to protect water quality. This proposal,
when finalized, will complete the comprehensive storm water program regulations for all storm water
point sources (those that directly discharge into water's of the United States) under the Clean Water Act
and will replace the storm water regulations of August, 1995. The current storm water program (Phase 1)
has resulted in significant improvement of surface water quality in the United States. This is measured
by the reduction of polluted runoff from a large number of sources which include major industrial facilities,
large and medium city storm sewers ( "municipal separate storm sewer systems" or "MS4s "), as well as
construction sites that disturb 5 or more acres. The "National Water Quality Inventory, 1994 Report to
Congress" provides a general assessment of water quality based on biennial reports submitted by the
States under Section 305(b) of the Clean Water Act. The report indicates that storm water discharges
from a variety of sources including separate storm sewers, construction, waste disposal, and resource
extraction activities are major causes of water quality impairment. Roughly 46 percent of the identified
cases of water quality impairment of estuarine square miles surveyed, for example, are attributable to
storm sewer runoff.
EPA developed the proposal with valuable input from representatives from a cross section of interested
stakeholders including State, Tribal, municipal, industrial, environmental representatives and small
entities. On October 18, 1997, in celebration of the 25th anniversary of the Clean Water Act, Vice
President Gore directed EPA to issue final storm water Phase II rules by March 1, 1999, as part a new
federal government Clean Water Action Plan currently being developed.
PHASE II
The proposal identifies two classes of facilities for automatic coverage on a nationwide basis under the
National Pollutant Discharge Elimination System ( NPDES) program. These classes are:
• small municipal separate storm sewer systems. The pollutants that are discharged from these
systems include sediment, floatables, oil and grease, as well as other pollutants from illicit
discharges. These systems are located in urbanized areas (about 3,500 municipalities will be
included in the program); and
• construction activities. The pollutants that are discharged from these activities include sediments and
erosion from these sites. The construction sites that disturb equal to or greater than one and less
than five acres of land (about 110,000 sites a year) will be included in the program.
• Other facilities and industrial and construction activities, as well as small municipal separate storm
sewer systems outside urbanized areas, could be designated on a case -by -case basis. The
designation would depend of the type of discharges that are produced from these other facilities and
activities.
"NO EXPOSURE" INCENTIVE FOR PHASE I
EPA is proposing to exclude from the NPDES storm water program, Phase I facilities that have "no
exposure" or no produce no industrial storm water discharges (industrial products, processes, or raw
materials). This "no exposure" incentive reduces the application of the program to many industrial
activities currently covered by the program. EPA estimates that at least 70,000 facilities will be able to
take advantage of this provision by removing these various activities from the potential to be exposed to
storm water.
CURRENT REGULATION
EPA issued its initial storm water phase II rule in August, 1995. The rule allows the NPDES permitting
authority (either the State or EPA Region) to require permits for discharges contributing to water quality
impairment on a case -by -case basis and requires all other unregulated storm water dischargers to apply
for NPDES permits by August 7, 2001. If this rule is not changed, millions of industrial and commercial
facilities and storm water discharges from all construction activities, no matter what size, as well as over
19,000 municipalities will have to submit permit applications in August, 2001. .
DECEMBER 1997 PROPOSAL
The NPDES State or EPA Region would need to issue permits, most likely general permits, covering the
facilities identified (small municipalities and small construction sites) by May 31, 2002. EPA will
encourage the small municipalities to use "best management practices" or BMP's. Examples of BMPs
could include: public education programs that suggest limiting use and runoff of garden chemicals, a soil
and erosion control ordinance, as well as good housekeeping for municipal operations. If after
implementing these BMPs there is still a water quality problem, the municipality would expand or use
better tailored BMPs in their measurements to result in water quality improvement. EPA believes that
implementation of BMP's at small construction sites will also result in a significant reduction in pollutant
discharges and improve surface water quality in a cost effective manner.
Municipally -owned industrial facilities which have been excluded from phase I, must apply for permit
coverage by August 7, 2001.
"NO EXPOSURE" INCENTIVE
The proposal offers a conditional exemption would be available to owners or operators of all categories
of regulated industrial activity (except construction activity and those entities individually designated by
the permitting authority) who could certify that industrial materials, material handling operations and
industrial processes are not exposed to storm water.
RESULTS
Regulating only those classes of discharges of storm water that pose the greatest potential for
environmental harm, EPA believes that the proposed rule would reduce adverse impacts to water
quality and aquatic habitat by further lowering pollutant loads in storm water discharges. For small
municipalities, the reduction and elimination of illicit discharges to the municipalities' systems, as well
as reductions in sediments, floatables, and oil and grease, will be obtained. For small construction
sites, erosion and discharges of sediments will be reduced.
• EPA believes this rule will cost significantly less than the existing 1995 rule that is currently in place;
EPA has reduced the annual costs from billions of dollars to a mean annual cost of $511 million, with
expected mean annual monetized benefits from implementation of the requirements of $310 million.
EPA has not factored in the "no exposure" streamlining into these costs; however, the expected
minimum annual cost savings for this provision is $88 million.
• There are numerous ecological benefits that will result when the rule is finalized. These benefits are:
reduced scouring and erosion of stream beds, improved aesthetic quality of waters, reduced
eutrophication of aquatic systems, benefit to wildlife and endangered and threatened species,
biodiversity benefits, and reduced siting costs for reservoirs.
FLEXIBILITY
The rule avoids duplication and ensures that the new permits comply with the States, Tribes and
other local programs.
The rule would provide for a NPDES program approach that 1) encourages the use of general
permits which will significantly reduce permit application costs, 2) provides flexibility for municipalities
to determine the nature of storm water controls, 3) does not require extensive monitoring by the
permittees, 4) provides flexibility in use of watershed approaches, 5) is consistent with the existing
storm water phase I program, 6) recognizes and includes existing programs, 7) utilizes the existing
NPDES program which is Federally enforceable and 8) takes advantage of existing structures and
mechanisms for public participation.
SUPPORTING EFFORTS
EPA is committed to provide the following assistance to support implementation of the Phase II program:
(1) assistance to local governments including support for pilot projects;
(2) developing tool box (including model general permits, model BMPs, guidance on physically -
connected municipal separate storm sewers, financial options, partnerships, general information, and
a host of other means of assistance) of implementation strategies;
(3) providing written technical assistance, including guidance on developing BMPs and measurable
goals;
(4) developing requirements to control runoff from Federal lands and facilities; and
(5) assistance on numerous issues to States/Tribes.
(6) EPA is also committed to conducting an enhanced research effort and compiling a comprehensive
evaluation of the NPDES municipal storm water Phase II program over the next 13 years.
SCHEDULE AND MORE INFORMATION
The proposed regulation will be published in the Federal Register for comment shortly after it is signed
by the Administrator. There will be a 90 day public comment period. EPA is going to distribute the
proposal widely and will continue to hold briefings for numerous stakeholders, including the Phase II
Subcommittee of the Urban Wet Weather Federal Advisory committee on February 5 -6, 1998. EPA is
holding public meetings to explain its phase II proposal, as well as public hearings to obtain public
comment, in six locations as indicated below.
Washington, D.C. - February 23, 1998 Boston, MA - February 25, 1998
Atlanta, GA - February 27, 1998 Chicago, IL - March 2, 1998
Dallas, TX - March 4, 1998 San Francisco, CA - March 6, 1998
Information on the proposed storm water phase II will be located on the World Wide Web at
http: /MWW.EPA.GOV /OWM /ne,w.htm
If you have questions, please a -rnail them to SW2Cepamail.epa.gov or call (202) 260 -5816.
The final regulation is scheduled to be issued by March 1, 1999.
The American Public Works Association (APWA) will be providing 10 workshops on the final rule. The
workshops are designed to educate local governments on the implementation of the Phase II rule. The
workshop curriculum will include information on a variety of key issues such as anticipated regulatory
requirements, agency reporting, best management practices, construction site controls, post construction
management for new and redeveloped sites, public education and public involvement strategies,
detection and control of illicit discharges, and good housekeeping practices.