Voluntary National Guidelines
*0r Mana9emei1* °* Onsite
and Clustered (Decentralized)
Wasteiniater Treatment Systems
public Education
and Participation
Manaqement
Guidelines
fication
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EPA832-B-03-001
March 2003
Voluntary National Guidelines for Management
of Onsite and Clustered (Decentralized)
Wastewater Treatment Systems
Office of Water
Office of Research and Development
U.S. Environmental Protection Agency
Recycled/Recyclable
Printed with vegetable-based ink on paper that
contains a minimum of 50% post-consumer fiber
content processed chlorine-free.
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CONTENTS
Executive Summary 3
Introduction 7
Relationship to Other Water Programs 13
Description of Management Models 15
How to Apply the Management Models 21
References 25
Glossary 27
Appendix A: Management Models 31
Appendix B: Relationship to Other Water Programs 51
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EXECUTIVE SUMMARY
EXECUTIVE
SUMMARY
The performance of onsite and clustered
(decentralized) wastewater treatment systems is a
national issue of great concern to the Environmental
Protection Agency (EPA). Decentralized systems are
used in 25 percent of the homes in the United States
and 33 percent of new development, and they are
permanent components of our nation's wastewater
infrastructure. Decentralized wastewater treatment
systems are defined here as managed individual onsite or
clustered wastewater systems (commonly referred to as
septic systems, private sewage systems, individual sewage
treatment systems, onsite sewage disposal systems, or
"package" plants) used to collect, treat, and disperse or
reclaim wastewater from individual dwellings, businesses,
or small communities or service areas. Unfortunately,
many of the systems in use are improperly managed
and do not provide the level of treatment necessary to
adequately protect public health and surface and ground
water quality. Proper management of decentralized
systems involves implementation of a comprehensive,
life-cycle series of elements and activities that address
public education
and participation,
planning,
performance, site
evaluation, design,
construction,
operation and
maintenance, residuals management, training and
certification/licensing, inspections and monitoring,
corrective actions, recordkeeping/inventorying/reporting,
and financial assistance and funding.
Therefore, EPA is issuing Voluntary National
Guidelines for Management of Onsite and Clustered
(Decentralized) Wastewater Treatment Systems (referred to
Decentralized
systems are used in
25% of U.S. homes
and are permanent
components of our
nation's wastewater
infrastructure.
as the Management
Guidelines) to
enhance the
performance
and reliability
of decentralized
wastewater
treatment systems
through improved
management programs. The Management Guidelines
will help improve system performance by encouraging
institutionalizing the concept of management; raising
the quality of state, tribal, and local management
programs; and suggesting minimum levels of activity.
Adequately managed decentralized systems that protect
the environment and public health can provide an
alternative to centralized wastewater treatment systems.
EPA continues to support the most sustainable approach
to implementing protective water pollution control
solutions whether it be centralized or decentralized. The
Management Guidelines are intended to be used when
a decision to implement a decentralized approach is or
has been made. They complement any other applicable
federal, state, tribal, or local government requirements,
including the National Pollutant Discharge Elimination
System (NPDES) program under the Clean Water Act
(CWA) and the Underground Injection Control (UIC)
program under the Safe Drinking Water Act (SDWA).
EPA intends that state, tribal, and local authorities
use the Management Guidelines, along with other
applicable federal requirements, to help communities
in meeting water quality and public health goals. The
Management Guidelines can be integrated into a
comprehensive watershed approach at the state, tribal,
or local government level. The benefits of an adequate
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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EXECUTIVE SUMMARY
Not in My
w$
diapers, cat litter, cigarette
filters, coffee grounds,
grease, feminine hygiene
products, etc.
alien
household chemicals,
gasoline, oil, pesticides,
antifreeze, paint, etc.
management program include protection of water
quality and public health, protection of consumers'
investment in home and business ownership, increased
onsite system service life and
replacement cost savings,
avoidance of transfers of
water away from the source
by conserving ground water,
and elimination of the need
|/y|/
X %/IOQQtirS to use a community's tax
r.7 99
base to finance sewers. As
noted above, and in more
detail later in this document,
y jfSlIjtfg proper management is
a comprehensive term
for achieving the long-
term sustainability of a
system, including adequate
operation and maintenance of the system. Although
implementation of the Management Guidelines is
voluntary, EPA strongly encourages considering them
as a template in strengthening existing management
programs and implementing new ones.
Unfortunately, although some
management programs are effective, many
existing state, tribal, and local rules that
regulate onsite systems are not adequate
to ensure proper performance. "Failure" of
onsite systems is a term subject to much
debate; however, 1995 U.S. Census data
report that over 10 percent of all systems
back up into homes or have wastewater
emerging on the ground surface, and that
more than half the systems in the United States were
installed more than 30 years ago when onsite rules
were nonexistent or poorly enforced. Few systems
receive proper maintenance because homeowners are
either unaware of the need for maintenance or find it a
distasteful task. In addition, most regulatory programs
Few systems receive
proper maintenance...
most regulatory
programs do not
require homeowner
accountability for
system performance.
do not require homeowner accountability for system
performance after installation. Although it is difficult
to measure and document specific cause-and-effect
relationships between onsite wastewater treatment
systems and the quality of our water resources, it is
widely accepted that improperly managed systems
contribute to major water quality problems. The National
Water Quality Inventory 1996 Report to Congress states
that "improperly constructed and poorly maintained
septic systems are believed to cause substantial and
widespread nutrient and microbial contamination
to ground water." Ultimately it is the absence of a
comprehensive management program addressing each
of these issues that prevents onsite and clustered
(decentralized) systems from being considered as an
effective and reliable wastewater treatment strategy.
Consequently, the potential for health and water quality
problems from poorly managed systems is increasing.
If effectively implemented by state, tribal, and
local governments, the Management Guidelines might
provide for a viable, long-term option for meeting
public health and water quality goals, particularly for
small and rural communities. In addition, appropriate
management programs will support the
activities and approaches being used in
other EPA programs and contribute toward
achievement of mutual water quality and
public health goals. These programs include
Watershed Management, National Pollutant
Discharge Elimination System, Biosolids
and Residuals Management, Storm Water
Management, Water Quality Management
(including Total Maximum Daily Loads,
or TMDLs), Water Quality Standards, Source Water
Assessment and Protection, Underground Injection
Control, Coastal Zone Management, Nonpoint Source
Control Program, and Technology Transfer.
In deciding whether to use onsite systems, it is
important to consider the risks they might pose to the
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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EXECUTIVE SUMMARY
environment and public health. There may be cases
where onsite systems are not appropriate because of the
environmental sensitivity or public health concerns of an
area. In the cases where onsite systems are appropriate, it
is critical that they be managed to prevent environmental
and public health impacts.
Five management models are provided as conceptual
approaches with progressively increasing management
controls as sensitivity of the environment and/or
treatment system complexity increases (see box below).
Each model consists of 13 critical elements that describe
activities to be performed to achieve the management
goal. The purpose of the models is to provide a guide to
match the needed management controls to the potential
public health and water quality risks presented by
decentralized systems in a particular area. The models
are flexible so that programs can be customized by
substituting elements of one program into another to
accommodate local needs, practices, and conditions. The
models are built around ensuring the accountability and
competency of regulators and service providers through
certification and continuing education, owners through
education and/or inspection requirements, and third-
party managers through contract and permit stipulations
to achieve their goals. The "best" model program for a
community is not necessarily in the higher levels, but
rather is the model that provides the most appropriate
management controls for the potential risks.
The Five Management Models
Management Model 1 - "Homeowner Awareness" specifies appropriate program elements and activities where
treatment systems are owned and operated by individual property owners in areas of low environmental sensitivity.
This program is adequate where treatment technologies are limited to conventional systems that require little
owner attention. To help ensure that timely maintenance is performed, the regulatory authority mails maintenance
reminders to owners at appropriate intervals.
Management Model 2 - "Maintenance Contracts" specifies program elements and activities where more complex
designs are employed to enhance the capacity of conventional systems to accept and treat wastewater. Because of
treatment complexity, contracts with qualified technicians are needed to ensure proper and timely maintenance.
Management Model 3 - "Operating Permits" specifies program elements and activities where sustained performance
of treatment systems is critical to protect public health and water quality. Limited-term operating permits are issued
to the owner and are renewable for another term if the owner demonstrates that the system is in compliance with the
terms and conditions of the permit. Performance-based designs may be incorporated into programs with management
controls at this level.
Management Model 4 - "Responsible Management Entity (RME) Operation and Maintenance" specifies program
elements and activities where frequent and highly reliable operation and maintenance of decentralized systems is required
to ensure water resource protection in sensitive environments. Under this model, the operating permit is issued to an
RME instead of the property owner to provide the needed assurance that the appropriate maintenance is performed.
Management Model 5 - "RME Ownership" specifies that program elements and activities for treatment systems are
owned, operated, and maintained by the RME, which removes the property owner from responsibility for the system.
This program is analogous to central sewerage and provides the greatest assurance of system performance in the most
sensitive of environments.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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EXECUTIVE SUMMARY
It is important to note
that the management
program models
are not intended to
supersede existing
federal, state, tribal,
or local laws and
regulations.
The legal authority for regulating onsite and
clustered (decentralized) wastewater treatment systems
generally rests with state, tribal, and local governments.
EPA recognizes that these units of government need
a flexible framework
and guidance to
tailor their programs
to the specific needs
of communities and
watersheds. Although
each management
program model stands
alone, the models
are intended only to
be guides in developing an appropriate management
program. Activities in program elements of higher-level
models may be incorporated into lower-level programs
to assist the local program in achieving its desired
objectives. Also, it is possible to implement more than
one management program model within a jurisdiction as
appropriate for the circumstances encountered, such as
housing density, receiving environment characteristics,
new development, high-volume or high-strength
wastewaters, and so forth. Management models may
also be implemented in conjunction with centralized
wastewater treatment and collection. It is important
to note that the management program models are not
intended to supersede existing federal, state, tribal, or
local laws and regulations, but rather to complement
them in protecting public health and water quality.
To assist state, tribal, and local units of government
in evaluating and upgrading their onsite and clustered
(decentralized) wastewater management programs, a
draft Handbook for Management of Onsite and Clustered
(Decentralized) Wastewater Treatment Systems (referred
to as the Management Handbook) complements the
Management Guidelines. The draft Management
Handbook includes case studies and examples of
materials used by communities that have implemented
management programs effectively.
Substantial resources are available as well, including
EPA's Onsite Wastewater Treatment Systems Manual, to
assist regulatory agencies and communities in assessing
the technical foundation of the elements and activities in
their existing or considered management programs.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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INTRODUCTION
INTRODUCTION
What Is the Purpose of the Voluntary National
Management Guidelines?
EPA has developed the Voluntary National Guidelines
for Management of Onsite and Clustered (Decentralized)
Wastewater
Treatment Systems
to raise the level
of performance
of onsite and
clustered
Jr waste water
treatment systems
through improved
management programs. Decentralized wastewater
treatment systems are defined here as individual onsite
or clustered wastewater systems (commonly referred to
as septic systems, private sewage systems,
individual sewage treatment systems, onsite
sewage disposal systems, or "package"
plants) used to collect, treat, and disperse
or reclaim wastewater from individual
dwellings, businesses, or small communities
and service areas. Such systems may
provide an alternative to conventional
centralized wastewater systems. However,
any onsite or clustered wastewater
treatment system that discharges pollutants
from a point source to waters of the
United States is subject to the National
Pollutant Discharge Elimination System
(NPDES) program under the Clean
Water Act (CWA). Such discharge is
illegal and subject to enforcement action
unless it is authorized by an NPDES permit issued by an
authorized state or tribe or by EPA. Onsite and clustered
EPA continues to
support the most
environmentally
sound and cost-
effective approach to
implementing protective
water pollution control
solutions whether
it be centralized or
decentralized. The
Management Guidelines
are intended to be
used when the decision
is to implement a
decentralized approach.
systems can be protective of public health and water
quality if they are properly planned, sited, designed,
constructed, installed, operated, and maintained.
EPA is issuing this guidance to raise the quality of
management programs, suggest minimum levels of
activity, and encourage institutionalizing the concept
of management. Implementation of the Management
Guidelines can help communities meet water quality and
public health goals, provide a greater range of options for
cost-effectively meeting wastewater needs, and protect
consumers' investment in home and business ownership.
In a number of instances, decentralized wastewater
treatment systems without proper management programs
have failed in the long term because of lack of proper
operation and/or maintenance and have had to be
replaced by centralized systems. If centralized collection
systems are feasible, decentralized systems
are recommended only where there is
assurance of an enforceable management
system consistent with this strategy,
including long-term financial and technical
capacity for operation and maintenance.
These Management Guidelines are
not intended to supercede any otherwise
applicable federal, state, tribal, or local
requirements. Also, the decision on use
of centralized or decentralized wastewater
treatment is one to be made at the state,
tribal, or local level after consideration of a
number of factors.
Please note that the statutes and
regulations described in this document
contain legally binding requirements. The
guidance provided in this document does not substitute
for those statutes or regulations. These Management
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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INTRODUCTION
Guidelines are strictly voluntary and, by themselves, do
not impose legally binding requirements on EPA, state,
local, or tribal governments or members of the public
and, based upon the circumstances, may not apply to a
particular situation. Although EPA strongly recommends
the approach outlined in this document, state and local
decision makers are free to adopt approaches that differ
from these Management Guidelines.
What Is Management?
Management of decentralized systems is implementation
of a comprehensive, life-cycle series of elements
and activities that address public education and
participation, planning, performance, site evaluation,
design, construction, operation and maintenance,
residuals management, training and certification/
licensing, inspections/monitoring, corrective actions,
recordkeeping/
inventorying/
reporting, and
financial assistance
and funding.
Therefore, a
management program
involves, in varying degrees, regulatory and elected
officials, developers and builders, soil and site evaluators,
engineers and designers, contractors and installers,
manufacturers, pumpers and haulers, inspectors,
management entities, and property owners. Establishing
the distinct roles and responsibilities of the partners
involved is very important to ensuring proper system
management.
Who Can Benefit from the Management
Guidelines?
The Management Guidelines contain a set of
management models, based on a comprehensive
approach that relies on coordinating responsibilities
and actions among the state, tribal, or local regulatory
agency, the management entity or service provider,
and the system owner. EPA recognizes the importance
of each party in improving management programs and
encourages identification of distinct and separate roles
and responsibilities when implementing management
programs. The primary audiences for these Management
Guidelines are
state, tribal, and
local regulators
and community
officials who are
responsible for
regulating onsite and
clustered systems.
The secondary
audiences include
planners, designers,
installers, operators,
pumpers, haulers,
management entities,
and inspectors.
In particular, local communities with a need to
improve system performance should consider these
Management Guidelines as a first step in evaluating
their existing programs. EPA also encourages state
and tribal agencies that regulate onsite and clustered
systems to evaluate their existing programs and address
the program elements and activities detailed in these
management models in their regulatory/management
function. Although very important to implementation
of a management program, owner responsibilities are
not discussed here in detail. Materials to help owners
improve management of their systems are provided in
EPA's draft Management Handbook, which is being
issued concurrently with these Management Guidelines.
To What Types of Systems Are the Guidelines
Relevant?
The Management Guidelines are relevant to both
existing communities and areas of new development
that use onsite and clustered systems of any size for
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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INTRODUCTION
residential and commercial wastewater treatment and
dispersal. Centralized collection and treatment facilities
are not addressed
here. Industrial
wastewater treatment
systems are also not
addressed because
many industrial
wastes are prohibited
by federal and state
regulation from using
onsite treatment and
dispersal, because
of the potential to interfere with wastewater treatment,
and/or to pollute ground water resources.
These Management Guidelines are not intended to
be used to determine appropriate or inappropriate uses
of land. The information in the Management Guidelines
is intended to be used to help select appropriate
management strategies and technologies that minimize
risks to human health and water resources in areas
where connections to centralized wastewater collection
and treatment systems are not considered appropriate.
The determination of appropriate siting requirements,
system density restrictions, or required technologies is a
state, tribal, or local decision. Substantial resources are
available to ensure these decisions are sound; they are
detailed in the draft Management Handbook.
What Are Management Guidelines?
These Management Guidelines consist of five models
that are structured to reflect an increasing need for more
comprehensive management as the sensitivity of the
environment or the degree of technological complexity
increases. A management program's intensity increases
progressively from one management model to another,
reflecting the increased level of management activities
needed to achieve water quality and public health goals.
A community would establish a management level
that is sufficient for its management needs. Although
adoption of the Management Guidelines is voluntary,
EPA strongly encourages communities to consider the
Management Guidelines as a basis for their onsite and
clustered wastewater management programs because of
the public health and water quality concerns associated
with these systems.
Why Are Management Guidelines Needed?
The performance of onsite and clustered wastewater
treatment systems is a national issue of great concern to
EPA. Onsite and clustered wastewater treatment systems
serve approximately
25 percent of U.S.
households (about
25 million) and
approximately 33
percent of new
development.(1) Onsite
and clustered systems
can provide a high
level of public health
and natural resource
protection if they are properly planned, sited, designed,
constructed, operated, and maintained.
Unfortunately, many of the systems in use do not
provide the level of treatment necessary to adequately
protect public health or surface and ground water quality.
Many were initially sited and installed as temporary
solutions as a result of the perception that centralized
treatment and collection would soon replace them.
Comprehensive, life-cycle management did not play a
role in the approval or the ongoing operation of many
systems. More than half the existing onsite systems
are over 30 years old, and surveys indicate at least 10
percent of these systems back up onto the ground surface
or into the home each year.(1) Other data have shown
that at least 20 percent of systems are malfunctioning to
some degree.(2) In most cases the homeowner is not aware
More than half the
existing onsite systems
are over 30 years old,
and surveys indicate
at least 10 percent of
these systems back
up onto the ground
surface or into the
home each year.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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INTRODUCTION
of a system failure until sewage backs up into the home
or breaks out on the ground surface. In many places,
local authorities lack records of many of the systems in
the service area.
Although it is difficult to measure and document
specific cause-and-effect relationships between onsite
wastewater treatment systems and the quality of our
water resources, it is widely accepted that improperly
managed systems (resulting from inadequate siting,
design, construction, installation, operation, and/or
maintenance) contribute to major water quality problems.
As documentation becomes available concerning
the source of impairments, EPA will be better able to
determine the extent of the relationship. It is already
evident that improved operation and performance of
onsite and clustered systems through better management
practices will be essential if the nation's water quality and
public health goals are to be attained.
In the National Water Quality Inventory: 1996
Report to Congress, state agencies designated the top
10 potential contaminant sources that threaten their
ground water resources. The second most frequently
cited contamination source was septic systems. The
report states
that "improperly
constructed and
poorly maintained
septic systems
are believed to
cause substantial
and widespread
nutrient and
microbial contamination to ground water." Other
contaminant sources identified by states included
underground storage tanks, landfills, large industrial
facilities, and numerous other activities.(3) States also
identified more than 500 communities in the 1996
Clean Water Needs Survey^ as having failed septic
The second most
frequently cited
contamination source
(of ground water) is
septic systems.
systems that have caused public health problems. In
1996 states reported septic systems as a leading source
of pollution for more than one-third (36 percent)
of the impaired miles of ocean shoreline surveyed.'3'
Other leading sources included urban runoff and storm
sewers, municipal sewer discharges, and industrial
point sources. In U.S. classified shellfish growing areas,
closures and harvest restrictions have occurred primarily
because of "the concentration of fecal coliform bacteria
associated with human sewage and with organic wastes
from livestock and
wildlife." The 1995
National Shellfish
Register indicated that
the most common
pollution source cited
for shellfish restrictions
was urban runoff (principal or contributing factor in 40
percent of all harvest-limited growing areas), followed
by unidentified upstream sources (39 percent), wildlife
(38 percent) and septic tanks (32 percent).(5) Onsite
wastewater treatment systems might also be contributing
to an overabundance of nutrients in ponds, lakes, and
coastal estuaries, leading to overgrowth of algae and
other nuisance aquatic plants. For example, the 45,000
septic systems in Sarasota County, Florida, contribute
four times more nitrogen to Sarasota Bay than the City
of Sarasota's advanced wastewater treatment plant.'6'
Onsite and clustered wastewater treatment systems
also contribute to contamination of drinking water
sources. EPA estimates that 168,000 viral illnesses and
34,000 bacterial illnesses occur each year as a result of
consumption of drinking water from systems that rely on
improperly treated ground water.'7' The contaminants of
primary concern in EPA's study of ground water-based
drinking water systems are waterborne pathogens from
fecal contamination. Malfunctioning septic systems are
identified as a potential source of this contamination;
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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INTRODUCTION
TFH
other sources could include leaking or overflowing
sanitary sewer lines, as well as storm water runoff. A
recent example of contamination involved nearly 800
visitors to a fair in
Washington County,
New York, who became
ill after consuming
water from a well
source that had likely
been contaminated by
a septic system at an
adjacent dormitory.
Other examples in
which pollution was
attributed to septic
systems include 82 cases of shigellosis resulting from
a contaminated well in Island Park, Idaho, in 1995;
46 cases of hepatitis A from a privately owned water
supply in Racine, Missouri; and 49 cases of hepatitis A
in Lancaster, Pennsylvania, in 1980.(8) EPA is concerned
about the presence of nitrates in ground water,
particularly in rural areas where residents must rely on
individual wells and onsite systems to serve relatively
small lots.
What Are the Benefits of a Management
Program?
Benefits of a management program are accrued by both
the communities developing effective management
programs and the individual property owners. They
include the following:
Protection of public health and local water resources.
Although unquantified, septic system failures in the
form of yard backups have been recognized as a public
health hazard and an insult to natural resources for
many years. Improved management practices will
minimize the occurrence of failures by ensuring (with
proper planning, siting, design, installation, operation
and maintenance, and monitoring) that pollutants
are adequately treated and dispersed into the
environment, thereby reducing risks to public health
and local water resources.
Protection of property values. There are many
documented instances over the past few decades of
property values increasing in areas formerly served by
failing onsite systems after the area has been sewered.
Management programs offer an opportunity to obtain
the same level of service and aesthetics as sewered
communities at a fraction of the cost, thus providing
property appreciation and cost savings.
Ground water conservation. A well-managed onsite
system will contribute to ground water recharge.
Many areas of the United States that have undergone
rapid development and sewering are experiencing
rapidly declining water tables or water shortages
because ground water is no longer being recharged by
onsite systems.
Preservation of tax base. A well-managed onsite
system will prevent small communities from having
to finance the high cost of centralized sewers. Many
small communities have exhausted their tax base,
at the expense of other public safety and education
programs, to pay for those sewers. Many communities
then entice growth in an effort to pay for the systems,
thus destroying the community structure that
originally attracted residents.
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INTRODUCTION
Li/e-cycle cost savings. There is a clear indication
that in many cases management may pay for itself in
terms of lower failure rates and alleviation of the need
for premature system replacement; however, this will
depend on the types of systems employed and the
management program chosen. Documentation of that
savings is only now being initiated.
How Were the Management Guidelines
Developed?
In April 1997 EPA published its Response to Congress
on Use of Decentralized Wastewater Treatment Systems,
which concluded that, overall, "adequately managed
decentralized wastewater treatment systems are a
cost-effective and
long-term option
for meeting public
health and water
quality goals,
particularly in less
densely populated
areas [small and rural
communities] ."(9) EPA stated that both centralized and
decentralized system alternatives should be considered
when upgrading failing onsite systems. The report found
that decentralized
Adequately managed
decentralized
wastewater treatment
systems are a cost-
effective and long-term
option for meeting
public health and water
quality goals.
systems can protect
public health and the
environment, typically
have lower capital
and maintenance
costs for low-density
communities, are
appropriate for varying
site conditions,
and are suitable for ecologically sensitive areas when
adequately managed.
More important, EPA identified several major
barriers to the increased use of these systems, including
the lack of adequate management programs. Most onsite
and clustered systems are regulated at the state, tribal, or
local level, not at the federal level, and there is a great
deal of inconsistency in the regulatory approaches. Many
existing management programs are inadequate or too
narrow in focus, allowing premature system failures to
occur. Although the varying reasons for system failure
may include shortcomings in siting, design, construction,
operation, or maintenance, it is ultimately the absence of
a comprehensive management programwhich addresses
each of these issuesthat prevents onsite and clustered
systems from reaching their potential as an effective,
reliable wastewater treatment strategy.
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RELATIONSHIP TO OTHER WATER PROGRAMS
RELATIONSHIP TO OTHER
WATER PROGRAMS
v< i v^
These Management Guidelines will help support
the activities and approaches being applied in
several other EPA programs and contribute toward
achieving mutual water quality objectives and public
health protection goals. The Management Guidelines
complement any applicable regulatory authority under
the Clean Water Act (CWA), Safe Drinking Water Act
(SDWA), Coastal Zone Management Act/Coastal Zone
Act Reauthorization Amendments of 1990 (CZMA/
CZARA), or any other federal law. For example, there
are certain situations where use of these Management
Guidelines includes authorization under an NPDES
permit, which is required for all discharges of pollutants
from a point source to waters of the United States.
Related programs include, among others, Watershed
Management, National Pollutant Discharge Elimination
System, Biosolids and Residuals Management, Storm
Water Management, Water Quality Management
(including Total Maximum Daily Loads, or TMDLs),
Water Quality Standards, Source Water Assessment and
Protection, Underground Injection Control, Coastal
Zone Management, Nonpoint Source Control Program,
and Technology Transfer. The relationship of the
Management Guidelines to these companion programs is
summarized in Appendix B.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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DESCRIPTION OF MANAGEMENT MODELS
DESCRIPTION OF
MANAGEMENT MODELS
Introduction
The Management Guidelines consist of a series of five
management models. As the models progress from
the Homeowner Awareness Model to the Responsible
Management Entity (RME) Ownership Model, they
reflect the need for improved management practices and
increased oversight as determined by the complexity of
treatment systems
employed and the
potential risks to
public health and
water resources.
For example,
the Homeowner
Awareness Model
recommends
management
practices for areas where the risks to public health
and water resources are low and the suitable
treatment technologies are passive and robust. The
RME Ownership Model, on the other hand, defines
an appropriate level of practice and oversight for
communities where there are significant risks to
public health or water resources. Table 1, "Summary
of Management Models," presents a brief description
of each management model. The table presents the
management program objectives, provides a brief
description of the types of systems applicable, and lists
the major benefits and limitations of each of the five
management models.
Key Concepts
The Management Guidelines contain certain key
concepts that are the foundation of changes needed to
improve the performance of decentralized wastewater
Key Concepts
An increase in the level of management as
the level of risk and technical complexity
increase
Inventorying existing systems and their level
of performance as a minimum
Operating permits for large systems and
clusters of onsite systems
Discharge permits for systems that discharge
to surface waters
Increased requirements for certification and
licensing of practitioners
Elimination of illicit discharges to storm drains
or sewers
treatment systems (see box above). These concepts are
imbedded in the activities of each management model
and have the potential to make a difference in the field.
Management Models
Tables 1 through 5 in Appendix A describe the
management models, which include the objective
or goal to be reached and an accompanying set of
program elements and activities appropriate for
achieving the stated objectives. The management
models provide benchmarks for a state, tribal, or
local unit of government to (1) select appropriate
management objectives to meet its wastewater
treatment needs, (2) evaluate the strengths and
weaknesses of its current program in achieving
the desired objectives, (3) design a management
program and activities needed to meet unique local
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Table 1: Summary of Management Models
TYPICAL APPLICATIONS
PROGRAM DESCRIPTION
LIMITATIONS
MODEL 1 - HOMEOWNER AWARENESS MODEL
Areas of low environmental
sensitivity where sites are
suitable for conventional
onsite systems.
Systems properly sited and constructed
based on prescribed criteria.
Owners made aware of maintenance needs
through reminders.
Inventory of all systems
Code-compliant system.
Ease of implementation; based on existing,
prescriptive system design and site criteria.
Provides an inventory of systems that is useful in
system tracking and area-wide planning.
No compliance/problem
identification mechanism.
Sites must meet siting
requirements.
Cost to maintain database
and owner education
program.
MODEL 2 - MAINTENANCE CONTRACT MODEL
Areas of low to moderate
environmental sensitivity
where sites are marginally
suitable for conventional
onsite systems due to small
lots, shallow soils, or low-
permeability soils.
Small clustered systems.
Systems properly sited and constructed.
More complextreatment options,
including mechanical components or small
clusters of homes.
Requires service contracts to be
maintained.
Inventory of all systems.
Service contract tracking system.
Reduces the risk of treatment system
malfunctions.
Protects homeowner investment.
Difficulty in tracking and
enforcing compliance
because it must rely on
the owner or contractor
to report a lapse in a valid
contract for services.
No mechanism provided
to assess effectiveness of
maintenance program.
MODEL 3 - OPERATING PERMIT MODEL
Areas of moderate
environmental sensitivity such
as wellhead or source water
protection zones, shellfish
growing waters, or bathing/
water contact recreation.
Systems treating high-strength
wastes or large-capacity
systems.
Establishes system performance and
monitoring requirements.
Allows engineered designs but may
provide prescriptive designs for specific
receiving environments.
Regulatory oversight by issuing renewable
operating permits that may be revoked for
noncompliance.
Inventory of all systems.
Tracking system for operating permit and
compliance monitoring.
Minimum for large-capacity systems.
Allows systems in more environmentally sensitive
areas.
Operating permit requires regular compliance
monitoring reports.
Identifies noncompliant systems and initiates
corrective actions.
Decreases need for regulation of large systems.
Protects homeowner investment.
Higher level of expertise
and resources for
regulatory authority to
implement.
Requires permit tracking
system .
Regulatory authority needs
enforcement powers.
MODEL 4 - RESPONSIBLE MANAGEMENT ENTITY (RME) OPERATION AND MAINTENANCE MODEL
Areas of moderate to high
environmental sensitivity
where reliable and sustainable
system operation and
maintenance (O&M) is
required, e.g., sole source
aquifers, wellhead or source
water protection zones,
critical aquatic habitats, or
outstanding value resource
waters.
Clustered systems.
Establishes system performance and
monitoring requirements.
Professional O&M services through RME
(either public or private).
Provides regulatory oversight by issuing
operating or NPDES permits directly to the
RME. (System ownership remains with the
property owner.)
Inventory of all systems.
Tracking system for operating permit and
compliance monitoring.
O&M responsibility transferred from the system
owner to a professional RME that is the holder
of the operating permit.
Identifies problems needing attention before
failures occur.
Allows use of onsite treatment in more
environmentally sensitive areas or for treatment
of high-strength wastes.
Can issue one permit for a group of systems.
Protects homeowner investment.
Enabling legislation may be
necessary to allow RME to
hold operating permit for
an individual system owner.
RME must have owner
approval for repairs; may
be conflict if performance
problems are identified and
not corrected.
Need for easement/right of
entry.
Need for oversight of RME
by regulatory authority.
MODEL 5 - RESPONSIBLE MANAGEMENT ENTITY (RME) OWNERSHIP MODEL
Areas of greatest
environmental sensitivity
where reliable management
is required. Includes sole
source aquifers, wellhead or
source water protection zones,
critical aquatic habitats, or
outstanding value resource
waters.
Preferred management
program for clustered systems
serving multiple properties
under different ownership
(e.g., subdivisions).
Establishes system performance and
monitoring requirements.
Professional management of all aspects
of decentralized systems through
public/private RMEs that own or manage
individual systems.
Qualified, trained, owners and licensed
professional owners/operators.
Provides regulatory oversight by issuing
operating or NPDES permit.
Inventory of all systems.
Tracking system for operating permit and
compliance monitoring.
High level of oversight if system performance
problems occur.
Simulates model of central sewerage, reducing
the risk of noncompliance.
Allows use of onsite treatment in more
environmentally sensitive areas.
Allows effective area-wide planning/watershed
management.
Removes potential conflicts between the user
and RME.
Greatest protection of environmental resources
and owner investment.
Enabling legislation and/or
formation of special district
may be required.
May require greater
financial investment by
RME for installation and/or
purchase of existing systems
or components.
Need for oversight of RME
by regulatory authority.
Private RMEs may limit
competition.
Homeowner associations
may not have adequate
authority.
Note: If applicable, NPDES requirements under the CWA or UIC requirements under the SDWA
supercede any less stringent or inconsistent provision.
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objectives, and (4) develop a plan for implementing
the management program. The draft Management
Handbook, which is being issued concurrently with these
Management Guidelines, provides detailed guidance
on how to select, evaluate, develop, and implement the
Management Guidelines.
Evaluation of Risk
In deciding whether to use onsite systems, it is
important to consider the risks they may pose to the
environment and public health. There may be cases
where onsite systems are not appropriate because of the
environmental sensitivity or public health concerns of
an area. In the cases
where onsite systems
are appropriate, it is
critical that they be
managed to prevent
environmental
and public health
impacts. All of the
management models share the common goal of ensuring
that public health and water resources
are protected. Effective implementation
of management programs requires
coordination among state, tribal, and local
water quality, public health, and planning
and zoning agencies, and community
officials. EPA continues to encourage this
coordination on a watershed basis. Zoning
ordinances and land use planning are also
mechanisms that state, tribal, and local
governments use to address water resource
issues. Coordination is necessary as well
to help ensure that state, tribal, and local
decentralized wastewater programs are
managed on a watershed basis to achieve
protection consistent with applicable state and tribal
water quality standards, including pathogen and nutrient
EPA recognizes
that these units of
government need a
flexible framework
and guidance to
best tailor their
management
programs to the
specific needs of
the community and
the needs of the
watershed.
criteria. EPA believes that these goals are best achieved
where performance-based management of onsite and
clustered systems has been implemented to protect the
quality of the receiving watershed and/or aquifer.
Flexibility Needed for Implementation
The legal authority for regulating onsite and clustered
systems generally rests with state, tribal, and local
governments. EPA recognizes that these units of
government need a
flexible framework
and guidance to
best tailor their
management
programs to the
specific needs of
the community and
the needs of the
watershed. Although
each management
model stands alone, the models are intended only to
be guides in developing an appropriate management
program. Activities shown in program
elements from one management model
may be incorporated into another model to
enhance the effectiveness of local programs
in achieving the desired objectives under
the prevailing circumstances. However,
substituting activities from higher levels
into lower-level management programs
should be carefully considered because of
the interdependence of many activities
on overall program capabilities. It is
also possible to implement more than
one management model, as appropriate,
within a jurisdiction for the circumstances
encountered (housing density, site and soil
characteristics, and treatment technology complexity).
Further, it is important to note that these management
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models are not intended to supersede existing federal,
state, tribal, and local laws and regulations, but rather to
complement their role in protecting public health and
water quality.
Roles and Responsibilities
Governmental roles and authority in implementation
of management programs based on the Management
Guidelines will vary from jurisdiction to jurisdiction.
Application of the NPDES program under the CWA
is required if there is a discharge of pollutants from a
point source to a water of the United States. Similarly,
application of the UIC program under the SDWA is
required if a large -
capacity system
is subject to UIC
controls. The
provisions of the
program elements
in each model may
inform the state,
tribe, or EPA in establishing NPDES permit requirements
if the NPDES program is applicable. In many cases states
will establish the authority for creation of management
entities, provide funding, and provide technical
assistance and training to local governments. The local
governments would then have primary responsibility
for implementation of the management program. If a
decentralized system is required to have an NPDES
permit and an authorized state or tribe is administering a
decentralized management program under this strategy,
the requirements of the program should be incorporated
into the applicable NPDES permit, which is the primary
regulatory instrument. If a state or tribe administering
the program is not an authorized NPDES authority,
the requirements of the program should be submitted
to the NPDES permit issuing authority as a Section
401 certification requirement. If the program is being
administered by a local authority or by a tribe without
401 certification ability, the requirements of the program
should be recommended to the NPDES permit issuing
authority for inclusion in the facilities permit. There
are some cases, however, where the states themselves
have the primary role and authority to implement the
regulatory program at the local level.
Costs
State, tribal, and local governments must recognize that
it is likely that both the regulatory authority and the
property owner will face increased costs in improving
management practices and programs. The cost impacts
may increase as the level of management increases;
however, trade-offs
exist. Costs incurred
by the regulatory
authority and/or
management entity
may be offset by
increased permit fees
and more efficient
data management
tools, while the costs to the property owner may be offset
by reduced repair and replacement costs, avoidance of
environmental restoration costs, and increased property
values and quality of life.
The Wastewater Management Continuum
Individual Small Large Small Wastewater Large Publicly Owned
Systems Clusters Clusters Treatment Plants Ireatment Works
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Model 1 - The Homeowner Awareness Model
As a minimum level of management, EPA recommends Model 1 - The Homeowner Awareness Model. This program
specifies appropriate management practices where treatment systems are owned and operated by individual property
owners in areas of low environmental sensitivity, i.e., no restricting site or soil conditions such as shallow water tables or
drinking water wells within locally determined horizontal setback distances. This model is applicable where treatment
technologies are limited to conventional systems, which are passive and robust treatment systems that can provide
acceptable treatment under suitable site conditions despite a lack of attention by the owner. Failures that might occur
and continue undetected will pose a relatively low level of risk to public health and water resources. The objectives of
this management model are to ensure that all systems are sited, designed, and constructed in compliance with sound,
prevailing rules; all systems are documented and inventoried by the regulatory authority; and system owners are informed
of the maintenance needs of their systems through timely reminders. The model is intended to provide an accurate record
of the types and location of installed systems, to raise homeowners' awareness of basic system maintenance requirements,
and to better ensure that the homeowners attend to those deficiencies that overtly threaten public health. This model,
like all management programs described in this guidance, suggests the use of only trained and licensed/certified service
providers. This model is a starting point for enhancing management programs because it provides communities with a
good database of systems and their application for determining whether increased management practices are necessary.
Model 2 - The Maintenance Contract Model
EPA recommends Model 2 - The Maintenance Contract Model where more complex system designs are employed to
enhance the capacity of conventional systems to accept and treat wastewater or where small clusters are used. For
example, pretreating wastewater to remove nonbiodegradable materials and particulate matter that typically pass
through a septic tank may enhance subsurface infiltration system performance on marginally suitable sites (sites with
limited area, slowly permeable soils, or shallow water tables). However, such pretreatment units can have mechanical
components and sensitive treatment processes, which require routine observation and maintenance if they are to perform
satisfactorily. Maintenance of these more complex systems is critical to sustaining acceptable protection in these areas of
greater environmental sensitivity. Therefore, these systems should be allowed only where trained operators are under
contract to perform timely operation and maintenance. The objectives of this model build on the Homeowner Awareness
Model by ensuring that property owners maintain maintenance contracts with trained operators.
Model 3 - The Operating Permit Model
EPA recommends Model 3 - The Operating Permit Model where sustained performance of onsite wastewater treatment
systems is critical to protect public health and water quality. Examples of locations where this program might be
appropriate include areas adjacent to estuaries or lakes where excessive nutrient concentrations may be a concern or
situations where a source water assessment has identified onsite systems as potential threats to drinking water supplies. EPA
strongly recommends that this be the minimum model used where large-capacity systems or systems treating high-strength
wastewaters are present. EPA has determined not to regulate large-capacity onsite systems under the Underground
Injection Control program at this time based on the belief that implementation of these Management Guidelines can
ensure adequate protection of public health and the environment.00' A principal objective of this management program
is to ensure that the onsite wastewater treatment systems continuously meet their performance criteria. Limited-term
operating permits are issued to the property owner and are renewable for another term if the owner demonstrates that the
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DESCRIPTION OF MANAGEMENT MODELS
system is in compliance with the terms and conditions of the permit. In subareas where it is appropriate to use conventional
onsite system designs, the operating permit may contain only a requirement that routine maintenance be performed in a
timely manner and the condition of the system be inspected periodically. With complex systems, the treatment process will
require more frequent inspections and adjustments, so process monitoring may be required. An advantage to implementing
the program elements and activities of this management program is that the design of treatment systems is based on
performance criteria that are less dependent on site characteristics and conditions. Therefore, systems can be used safely in
more sensitive environments if their performance meets those requirements reliably and consistently. The operating permit
provides a mechanism for continuous oversight of system performance and negotiating timely corrective actions or levying
penalties if compliance with the permit is not maintained. To comply with these performance standards, the property
owner should be encouraged to hire a licensed maintenance provider or operator.
Model 4 - The Responsible Management Entity (RME) Operation and Maintenance Model
EPA recommends Model 4 - The Responsible Management Entity (RME) Operation and Maintenance Model where large
numbers of onsite and clustered systems must meet specific water quality requirements because the sensitivity of the
environment is high, e.g., wellhead protection areas or shellfish waters. Frequent and highly reliable operation and
maintenance is required to ensure water resource protection. Issuing the operating permit to an RME instead of the
property owner provides greater assurance of control over performance compliance. This allows the use of performance-
based systems in more sensitive environments than the Operating Permit Model. For a service fee, an RME takes
responsibility for the operation and maintenance. This approach can reduce the number of permits and the administration
functions performed by the regulatory authority. System failures are also reduced as a result of routine and preventive
maintenance. The operating permit system is identical to that of the Operating Permit Model except that the permittee is
a public or private RME. States may need to establish (and some already have) a regulatory structure to oversee the rate
structures that RMEs establish and any other measures that a public services commission would normally undertake to
manage private entities in noncompetitive situations.
Model 5 - The Responsible Management Entity (RME) Ownership Model
Model 5 - The Responsible Management Entity (RME) Ownership Model is a variation of the RME operation and
maintenance concept in the RME Operation and Maintenance Model, with the exception that ownership of the system is
no longer with the property owner. The designated management entity owns, operates, and manages the decentralized
wastewater treatment systems in a manner analogous to central sewerage. Under this approach, the RME maintains
control of planning and management, as well as operation and maintenance. This management model is appropriate for
environmental or public health conditions similar to those for the RME Operation and Maintenance Model, but Model 5
provides a higher level of control of system performance. It also reduces the likelihood of disputes that can occur between
the RME and the property owner in the RME Operation and Maintenance Model when the property owner fails to fully
cooperate with the RME. The RME can also more readily replace existing systems with higher-performance units or clustered
systems when necessary. EPA recommends implementation of the management practices detailed in the RME Ownership
Model in cases such as where new, high-density development is proposed in the vicinity of sensitive receiving waters. States
might need to establish a regulatory structure to oversee the rate structures that RMEs establish and any other measures
that a public services commission would normally undertake to manage entities in noncompetitive situations.
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How TO APPLY THE MANAGEMENT MODELS
HOW TO APPLY THE
MANAGEMENT MODELS
Tables 1 through 5 in Appendix A provide brief
descriptions of specific activities to be undertaken
for the various program elements of a management
model. The party that has primary responsibility for
the activities is also identified. The program elements
and activities listed for each management model are
considered to be
the minimum
elements and
activities necessary
to achieve the
stated management
objectives for each model. A detailed discussion of the
program elements and activities is provided in the draft
Management Handbook. The handbook complements
the Management Guidelines and helps states, tribes, and
local communities that wish to evaluate and upgrade
their existing programs to develop and implement
improved management programs. The draft Management
Handbook includes case studies and examples of
materials used by communities that have adequately
implemented management programs.
How Do the Models Apply to Local Conditions?
As previously indicated, the management model a
particular community or service area
selects should be based on environmental
sensitivity, public health risks, the
complexities of the wastewater treatment
technologies that might or should be
implemented, and the size or density of
development. The management model
is selected after the decision to use
decentralized wastewater treatment is
made. The tables in Appendix A generally describe
TTie general
framework for a
local management
program should be
derived from the
tables, but it must be
tailored to suit local
circumstances and
preferences.
J
Selection of the
management model is
made after the decision
to use decentralized
wastewater treatment
is made.
recommended activities for each of the management
elements associated with the management models. How
each of these elements and activities will be implemented
will depend on decisions by the local community and
regulatory authority,
based on generally
accepted onsite
wastewater science
and practice, locally
appropriate statutes,
ordinances, institutional
structures, technical
capabilities, public
preferences, and other
factors. Thus, the
general framework for a local management program
should be derived from the tables, but it must be tailored
to suit local circumstances and preferences.
EPA recognizes the varied nature of management
needed across the country and within states and
localities, the need for flexibility in adopting the
recommendations of the Management Guidelines, and
the lack of resources for implementation. Although
states, tribes, and local communities are encouraged to
implement management models, an individual program
may properly include elements of several
management models. These hybrid or
combination programs may be appropriate
where site conditions vary within the
community or institutional capacity is not
uniform within the jurisdiction. It is also
recommended that appropriate levels of
management for decentralized systems be
established in jurisdictions that have both centralized
and decentralized wastewater treatment. In some cases,
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How TO APPLY THE MANAGEMENT MODELS
it might be feasible for the entity that manages the
centralized wastewater treatment facility to manage the
decentralized systems as well.
How Can a Community Phase In a Management
Model?
Targeting of specific types of systems for improved
management may also be appropriate when resources are
limited and a phased approach that focuses on priority
systems is preferred. When there are limited resources
for monitoring efforts, a widely used approach has been
to initially target higher-density or environmentally
sensitive areas. Examples of environmentally sensitive
areas include areas used for drinking water sources, areas
adjacent to heavily used lakes and beaches, and areas
that affect coral reefs or shellfish beds. Any approach
taken should include input from all the stakeholders in a
local jurisdiction or watershed.
The implementation of higher levels of
management will often occur in progressive stages, as
more performance data and experience with systems
develop, public awareness and support increase, and the
capability of state,
tribal, and local
institutions to deal
with management
challenges
builds over time.
Implementation of
the elements and
activities recommended by the Homeowner Awareness
Model as the threshold level of management will not
only raise the quality of management practices for most
existing programs but also initiate activities (such as
an inventory of systems) that allow the community to
identify and address circumstances that might require
upgrading to higher levels of management.
Although the Homeowner Awareness Model might
adequately address conventional systems within low-risk
Targeting of specific
types of systems
for improved
management may also
be appropriate when
resources are limited.
segments of a service area, there might be other areas
of higher risk that require higher levels of management.
For those areas, a higher-level management model,
more appropriate for areas with higher sensitivities,
may be incorporated into the overall management
program to customize system management to the needs
of the community or service area. It is important that
the management program be structured to adequately
manage an appropriate set of onsite and clustered
systems for the full
range of environmental
conditions. For
example, the Operating
Permit Model might be
selected for the more
sensitive areas such as
those along lakefronts
or estuaries shown to
have poor water quality, while a lower-level management
model might still be appropriate where the receiving
environment is not as sensitive and conventional systems
are acceptable.
What Should Be Considered When Selecting a
Management Model?
Environmental sensitivity and public health risk.
The locally developed management program should
be based on the potential risk of onsite wastewater
treatment system discharges adversely affecting
the public health or the quality of local water
resources. The level of oversight incorporated into
the management program should increase as the
potential for negative impacts on public health or for
environmental degradation increases. Examples of
parameters to consider in assessing public health and
environmental sensitivity include soil permeability,
depth to a restrictive horizon and ground water,
aquifer type, receiving water use, proximity to surface
waters, topography, geology, location of critical habitat
under the Endangered Species Act, and density of
development. Another useful parameter to consider
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is the "susceptibility determinations" that states
and tribes will make as part of their source water
assessments. These assessments determine which
potential sources of pollution, including decentralized
wastewater systems, pose the greatest threats to
drinking water.
Other issues to consider that might have a direct
impact on public health include the need to protect
shellfish harvesting and direct contact recreational
waters. An area with moderately permeable soils and
a ground water table that is sufficiently isolated from
the effects of
onsite discharges
may be designated
as an area of low
public health risk
and environmental
sensitivity,
whereas an area
with excessively
permeable soils with a shallow water table used for
a drinking water source would be designated as an
area of high concern. For those watersheds where
a determination has been made that the onsite
wastewater treatment system is contributing to a
violation of water quality standards, the elements
and activities of the Operating Permit Model, the
RME Operation and Maintenance Model, or the
RME Ownership Model should be selected to
address restoration of the watershed. More detailed
information on these factors is provided in the draft
Management Handbook.
Complexity of treatment system. The complexity of
the treatment system also influences the management
program selected. As the complexity of a treatment
system increases to meet management objectives
or system performance standards, the need for a
higher level of operation and maintenance and
monitoring increases to ensure that the system does
not malfunction to create an unacceptable risk to
public health or water resources. A less complex
treatment system, such as a conventional onsite septic
system, depends upon passive, natural processes for
the movement, treatment, and dispersal of wastewater.
The prescriptive elements of the Homeowner
Awareness Model, where properly applied, might
be sufficient for conventional onsite technologies
to consistently function as effective wastewater
treatment systems. A more complex treatment system,
such as a surface discharging aerobic treatment
system with filtration and disinfection, will require
routine monitoring and attention from a professional
technician to maintain performance and therefore
requires a higher
level of oversight.
EPA's updated Onsite
Wastewater Treatment
Systems Manual*11'
provides guidance
on performance
and management
requirements for
a broad range of
onsite treatment and
dispersal technologies.
System size also
influences the management model selected. Large-
capacity and clustered systems require a higher degree
of management than individual onsite systems.
Communities that have made the decision to use onsite
and clustered systems should use these Management
Guidelines as a tool for identifying approaches for
proper management of the systems. Implementation of
the management practices defined in the Management
Guidelines will help communities meet water quality and
public health goals, provide a greater range of options for
cost-effectively meeting wastewater needs, and protect
consumers' investment in home and business ownership.
Tables 1 through 5 in Appendix A provide a useful
summary of the program elements for each management
model and the associated responsible party and activity.
The draft Management Handbook provides further detail
on how to implement the management programs and is
EPA's updated Onsite
Wastewater Treatment
Systems Manual,
provides guidance
on performance
and management
requirements for a
broad range of onsite
treatment and dispersal
technologies.
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How TO APPLY THE MANAGEMENT MODELS
designed to assist state, tribal, and local officials; service
providers; and other interested parties with improving
system operation, maintenance, and performance.
Where Can Further Information Be Obtained?
Visit EPA's Web site on decentralized wastewater
treatment at www.epa.gov/owm/onsite. The site
includes a copy of the draft Management Handbook,
fact sheets on technologies, useful links to other sites, a
calendar of events, frequently asked questions, sources
of funding information on demonstration projects, and
numerous reference documents such as EPA's new Onsite
Wastewater Treatment Systems Manual.
Additional copies of this document, (EPA 832-B-03-001),
can be obtained from:
U.S. EPA Publications Clearinghouse
PO. Box 42419
Cincinnati, OH 45242
Telephone: 800490-9198
Fax: 513-489-8695
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REFERENCES
1. U.S. Department of Commerce, U.S. Census Bureau,
American Housing Survey for the United States-1995,
issued September 1997.
2. VI., Nelson, S.E Dix, and F. Shephard, Advanced Onsite
Wasteuiater Treatment and Management Scoping Study:
Assessment of Short-Term Opportunities and Long-Run
Potential (DRAFT), May 1999. Data based on reporting
from onsite system inspections in Massachusetts.
3. U.S. Environmental Protection Agency, National Water
Quality Inventory: 1996 Report to Congress, EPA 841-R-
97-008, 1998.
4- U.S. Environmental Protection Agency, 1996 Clean Water
Needs Survey Report to Congress, EPA/832/R-97/003,
September 1997.
5. U.S. Department of Commerce, National Oceanic and
Atmospheric Administration, National Shellfish Register, 1995.
6. Sarasota Bay (FL) National Estuary Program
(www.sarasotabay.org), Sarasota Bay: Reclaiming Paradise
A Vision for Sarasota Bay (State of the Bay, 1992).
7. U.S. Environmental Protection Agency, 40 CFR Parts 141
and 142: National Primary Drinking Water Regulations:
Ground Water Rule; Proposed Rules, Federal Register,
May 10, 2000.
8. U.S. Centers for Disease Control, Database of Waterborne
and Foodborne Disease Outbreaks in the United States,
1971-1994. Data summary and analysis provided by EPA
as part of the development of the Ground Water Rule, and
found at www.epa.gov/ogwdwOOO/standard/phs.html.
9. U.S. Environmental Protection Agency, Response to
Congress on Use of Decentralized Wasteivater Treatment
Systems, EPA 832/R-97/001b, April 1997.
10. U.S. Environmental Protection Agency, 40 CFR Part
144, Underground Injection Control ProgramNotice
of Final Determination for Class V Wells; Final Rule,
Federal Register, June 7, 2002, Vol. 67, No. 110, pages
39584-39593.
11. U.S. Environmental Protection Agency, Onsite
Wasteivater Treatment Systems Manual, EPA 625/R-
00/008,February 2002.
12. U.S. Environmental Protection Agency, 1998 Section
303 (a) List Fact Sheet: National Picture of Impaired
Waters Highlights of the 1998 303 (d) Lists (based on
Tracking System data available 04/06/00). Found at
http://www.epa.gov/owow/tmdl/states/national.html
13. U.S. Environmental Protection Agency, Domestic Septage
Regulatory Guidance: A Guide to the EPA 503 Rule, EPA
832/B-92/005, 1993.
14- U.S. Environmental Protection Agency, Guide to Septage
Treatment and Disposal, EPA 625/R-94/002, 1994.
15. U.S. Environmental Protection Agency, Draft
Implementation Guidance for Ambient Water Quality
Criteria for Bacteria-1986, EPA 823/D-00/001, January
2000.
16. U.S. Environmental Protection Agency, Nutrient Criteria
Technical Guidance ManualEstuarine and Coastal
Marine Waters, EPA 822/B-01/003, October 2001.
17. U.S. Environmental Protection Agency, Nutrient Criteria
Technical Guidance ManualLakes and Reservoirs, EPA
822/B-00/001, April 2000.
18. U.S. Environmental Protection Agency, Nutrient Criteria
Technical Guidance ManualRivers and Streams, EPA
822/B-00/002, July 2000.
19. U.S. Environmental Protection Agency, Class V
Underground Injection Control Study, EPA 816/R-99/014,
September 1999.
20. U.S. Environmental Protection Agency, Guidance
Specifying Management Measures for Sources of Nonpoint
Pollution in Coastal Waters.
21. U.S. Environmental Protection Agency, Onsite
Wasteivater Treatment Systems Manual, EPA 625/R-
00/008, February 2002.
22. U.S. Environmental Protection Agency, Design Manual
Onsite Wasteivater Treatment and Disposal Systems, EPA
625/1-80/012, October 1980.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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GLOSSARY
GLOSSARY
Aerobic Treatment Unit (ATU): A mechanical
wastewater treatment unit that provides secondary
wastewater treatment for a single home, a cluster of
homes, or a commercial establishment by mixing air
(oxygen) and aerobic and facultative microbes with the
wastewater. ATUs typically use a suspended growth
process (such as activated sludge-extended aeration and
batch reactors), a fixed-film process (similar to a trickling
filter), or a combination of the two treatment processes.
Alternative Onsite Treatment System: A wastewater
treatment system that includes components different
from those typically used in a conventional septic
tank and subsurface wastewater infiltration system
(SWIS). An alternative system is used to achieve
acceptable treatment and dispersal of wastewater
where conventional systems either might not be
capable of protecting public health and water quality
or are inappropriate for properties with shallow
soils over ground water or bedrock or soils with low
permeability. Examples of components that can be used
in alternative systems are sand filters, aerobic treatment
units, disinfection devices, and alternative subsurface
infiltration designs such as mounds, gravelless trenches,
and pressure and drip distribution.
Centralized Wastewater System: A managed system
consisting of collection sewers and a single treatment
plant used to collect and treat wastewater from an entire
service area. Traditionally, such a system has been called
a publicly owned treatment works (POTW) as defined at
40 CFR 122.2.
Cesspool: A drywell that receives untreated sanitary
waste containing human excreta, which sometimes has
an open bottom and/or perforated sides (40 CFR 144.3).
Cesspools with the capacity to serve 20 or more persons
per day were banned in federal regulations promulgated
on December 7, 1999. The construction of new cesspools
was immediately banned, and existing large-capacity
cesspools must be replaced with sewer connections or
onsite wastewater treatment systems by 2005.
Clustered System: A wastewater collection and
treatment system under some form of common
ownership that collects wastewater from two or more
dwellings or buildings and conveys it to a treatment
and dispersal system located on a suitable site near the
dwellings or buildings.
Construction Permit: A permit issued by the designated
local regulatory authority that allows the installation
of a wastewater treatment system in accordance with
approved plans and applicable codes.
Conventional Onsite Treatment System: A wastewater
treatment system consisting of a septic tank and a typical
trench or bed subsurface wastewater infiltration system.
Decentralized System: An onsite or clustered system
used to collect, treat, and disperse or reclaim wastewater
from a small community or service area.
Dispersal System: A system that receives pretreated
wastewater and releases it into the air, into surface or
ground water, or onto or under the land surface. A
subsurface wastewater infiltration system is an example
of a dispersal system.
Engineered Design: An onsite or clustered wastewater
system that is designed and certified by a licensed/
certified designer to meet specific performance criteria
for a particular wastewater on a particular site.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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GLOSSARY
Environmental Sensitivity: The relative susceptibility to
adverse impacts of a water resource or other receiving
environment from dispersal of wastewater or its
constituents. The impacts may be low, acute (immediate
and significantly disruptive), or chronic (long-term, with
gradual but serious disruptions).
Large-Capacity Septic System: An onsite method of
partially treating and disposing of sanitary wastewater
having the capacity to serve 20 or more persons per day
subject to EPA's Underground Injection Control regulations.
Management Model: A 13-element program designed
to protect and sustain public health and water
quality through the use of appropriate policies and
administrative procedures that define and integrate the
roles and responsibilities of the regulatory authority,
system owner, service providers, and management
entity, when present, to ensure that onsite and clustered
wastewater treatment systems are appropriately
managed throughout their life cycle. The program
elements include public education and participation;
planning; performance; training and certification/
licensing; site evaluation; design; construction;
operation and maintenance; residuals management;
compliance inspections/monitoring; corrective actions;
recordkeeping, inventory, and reporting; and financial
assistance and funding. Management services should
be provided by properly trained and certified personnel
and tracked through a comprehensive management
information system.
National Pollutant Discharge Elimination System
(NPDES): A national program under Section 402 of
the Clean Water Act for regulation of discharges of
pollutants from point sources to waters of the United
States. Discharges are illegal unless authorized by an
NPDES permit.
Onsite Service Provider: A person who provides onsite
system services. Providers include (but are not limited
to) designers, engineers, soil scientists, site evaluators,
installers, contractors, operators, managers, maintenance-
service providers, pumpers, and others who provide
services to system owners or other service providers.
Onsite Wastewater Treatment System (OWTS): A
system relying on natural processes and/or mechanical
components to collect, treat, and disperse or reclaim
wastewater from a single dwelling or building.
Operating Permit: A renewable and revocable permit to
operate and maintain an onsite or clustered treatment
system in compliance with specific operational or
performance criteria stipulated by the regulatory
authority.
Performance-Based Management Program: A program
designed to preserve and protect public health and water
quality by seeking to ensure sustained achievement of
specific, measurable performance criteria based on site
and risk assessments.
Performance Criteria: Any criteria established by
the regulatory authority to ensure future compliance
with the public health and water quality goals of
the community, the state or tribe, and the federal
government. Performance criteria can be expressed as
numeric limits (e.g., pollutant concentrations, mass
loads, wet weather flow, structural strength) or narrative
descriptions of desired conditions or requirements (e.g.,
no visible scum, sludge, sheen, odors, cracks, or leaks).
Permitting Authority: The state, tribal, or local unit of
government with the statutory or delegated authority to
issue permits to build and operate onsite wastewater systems.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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GLOSSARY
Prescription-Based Management Program: A program
designed to preserve and protect public health and water
quality by specifying preengineered system designs for
specific sets of site conditions such that systems that are
sited, designed, and constructed properly are deemed to
meet public health and water quality standards.
Prescriptive Requirements: Specifications for design,
installation, and other procedures and practices for
onsite or clustered wastewater systems on sites that
meet stipulated criteria. Proposed deviations from the
stipulated criteria, specifications, procedures, or practices
require formal approval from the regulatory authority.
Regulatory Authority (RA): The unit of government
that establishes and enforces codes related to the
permitting, design, placement, installation, operation,
maintenance, monitoring, and performance of onsite and
clustered wastewater systems.
Residuals: The solids generated or retained during the
treatment of wastewater. They include trash, rags, grit,
sediment, sludge, biosolids, septage, scum, and grease,
as well as those portions of treatment systems that have
served their useful life and require disposal, such as
the sand or peat from a filter. Because of the different
characteristics of residuals, management requirements
can differ as stipulated by the appropriate federal
regulations.
Responsible Management Entity (RME): A legal
entity responsible for providing various management
services with the requisite managerial, financial, and
technical capacity to ensure the long-term, cost-effective
management of decentralized onsite or clustered
wastewater treatment facilities in accordance with
applicable regulations and performance criteria.
Septage: The liquid and solid materials pumped from a
septic tank during cleaning operations.
Septic Tank: A buried, watertight tank designed and
constructed to receive and partially treat raw wastewater.
The tank separates and retains settleable and floatable
solids suspended in the wastewater and discharges the
settled wastewater for further treatment and dispersal to
the environment.
Source Water Assessment: A study and report required
by the Source Water Assessment Program (SWAP) of
the Safe Drinking Water Act addressing the capability of
a given public water system to protect water quality. The
assessment includes delineation of the source water area,
identification of potential sources of contamination in the
delineated area, determination of susceptibility to those
sources, and public notice of the completed assessment.
Underground Injection Well: A constructed system
designed to place waste fluids above, into, or below
aquifers classified as underground sources of drinking
water. As regulated under the Underground Injection
Control (UIC) Program of the Safe Drinking Water Act
(40 CFR Parts 144 and 146), injection wells are grouped
into five classes. Class V includes shallow systems such as
cesspools and subsurface wastewater infiltration systems.
Subsurface wastewater infiltration systems with the
capacity to serve 20 or more people per day, or similar
systems receiving nonsanitary wastes, are subject to
federal regulation. Class V motor vehicle waste injection
wells and large-capacity cesspools are specifically
prohibited under the UIC regulations.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A:
MANAGEMENT MODELS
This appendix presents a description of activities associated with each program element and
identifies the party responsible for each activity. A detailed discussion is presented in the
Management Handbook. Activities in bold are activities added to program elements from the
preceding Management Model.
Note: If applicable, National Pollutant Discharge Elimination System (NPDES) requirements under the Clean
Water Act (CWA) or Underground Injection Control (UIC) requirements under the Safe Drinking Water Act
(SDWA) supercede any less stringent or inconsistent provisions. Program elements in each model help inform the
state, tribe, or EPA in establishing NPDES permit requirements.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A: MANAGEMENT MODELS
MANAGEMENT MODEL 1: HOMEOWNER AWARENESS
Objective: To ensure that conventional onsite systems are sited and constructed properly in accordance with appropriate state,
tribal, and local regulations and codes; that they are periodically inspected; and, if necessary, that they are repaired by the
Owner. The Regulatory Authority maintains a record of the location of all systems and periodically provides the Owner/User
with notices regarding operation and preventive maintenance recommendations.
PROGRAM
ELEMENT
PUBLIC
EDUCATION AND
PARTICIPATION
PLANNING
PERFORMANCE
TRAINING AND
CERTIFICATION/
LICENSING
SITE
EVALUATION
RESPONSIBLE
PARTY
Regulatory
Authority
Service Provider
Owner/User
Regulatory
Authority
Developer
Regulatory
Authority
Owner/User
Licensing Board/
Regulatory
Authority
Service Provider
Owner/User
Regulatory
Authority
Site Evaluator
Owner
ACTIVITY
Educate Owner/User on purpose, use, and care of treatment system.
Provide public review and comment periods of any proposed program or rule changes.
Be informed of existing rules and review and comment on any proposed program and/or rule I
Participate in advisory committees established by the Regulatory Authority. ^^fl
Be informed of purpose, use, and care of treatment system. H^^
Be informed of existing rules and review and comment on any proposed program and/or rule ^r^B
Participate in advisory committees established by the Regulatory Authority. ^LSl
Coordinate program rules and regulations with state, tribal, and local planning and zoning £!'
and other water-related programs.
Evaluate potential risks of wastewater discharges to limit environmental impacts on receiving I
environments during the rule making process. B^fl
Limit potential risks of environmental impacts from residuals management program and B^V
evaluate available handling/treatment capacities. ^H|fl
Inform local planning authority of rule changes and recommend its evaluation of potential ^^^1
impacts on land use. p-^B
Hire planners, certified site evaluators, and designers to ensure that all lots of proposed BwB
subdivision plats meet requirements for onsite treatment prior to final plat.
Establish system failure criteria to protect public health, e.g., wastewater backups in building, ^^pfl
wastewater ponding on ground surface, insufficient separation from ground water or wells. HP4
Regularly maintain system in proper working order.
Develop and administer training, testing, and certification/licensing program for site Bufl
evaluators, designers, contractors, and pumpers/haulers. K*]
Maintain a current certified/licensed Service Provider listing. P^fl
Obtain appropriate certification(s)/license(s) and continuing education as required. ^El^l
Obtain training from the manufacturer or vendor regarding appropriate use, installation I-U-I
requirements, and O&M procedures of any proprietary equipment to be installed. ^ull
Comply with applicable federal, state, tribal, and local requirements.
When using third-party services, contract with only the appropriate certified/licensed Service
Codify prescriptive requirements for site evaluation procedures. ffl
Codify criteria for treatment site characteristics suitable for permitted designs that will ^t^B
prevent unacceptable impacts on ground and surface water resources. Bwl
Obtain certification/license to practice.
Describe site and soil characteristics, determine suitability of site with respect to code
requirements, and estimate site's hydraulic and treatment capacity.
Comply with applicable federal, state, tribal, and local requirements in the evaluation of sites
for wastewater treatment and dispersal.
Hire a certified/licensed site evaluatorto perform site evaluation.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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APPENDIX A: MANAGEMENT MODELS
1 PROGRAM
ELEMENT
P
fcj CONSTRUCTION
hj OPERATION &
1 MAINTENANCE
mfm RESIDUALS
^B MANAGEMENT
COMPLIANCE
INSPECTIONS/
MONITORING
RESPONSIBLE
PARTY
Regulatory
Authority
Designer
Owner
Regulatory
Authority
Contractor/
Installer
Designer of
Record
Owner
Regulatory
Authority
Pumper/Hauler
Owner
User
Regulatory
Authority
Pumper/Hauler
Regulatory
Authority
Pumper/Hauler
Owner
ACTIVITY
Codify prescriptive, preengineered designs that are suitable for treatment sites that meet the
appropriate prescriptive site criteria.
Obtain a certification/license to practice.
Design a treatment system that is compatible with the site and soil characteristics described by
the site evaluator.
Comply with applicable federal, state, tribal, and local requirements in the design of
wastewater treatment and dispersal systems.
Hire a certified/licensed designer to prepare system design.
Administer a permitting program for system construction, including Regulatory Authority
review of proposed system siting and design plans.
Perform final construction inspection for compliance assurance and inventory data collection.
Require that record drawings of constructed system be submitted to the Regulatory Authority
by Owner.
Obtain certification/license to practice.
Construct the system in accordance with the approved plans and specifications.
Prepare record drawings of completed system and submit to Owner.
Comply with applicable federal, state, tribal, and local requirements in the design and
construction of wastewater treatment and dispersal systems.
Approve proposed field changes and submit to Owner.
Comply with applicable federal, state, tribal, and local requirements in the design and
construction of wastewater treatment and dispersal systems.
Hire a certified/licensed contractor/installer to construct system.
Submit final record drawings of constructed system to Regulatory Authority.
Provide Owner/User with educational materials regarding system use and care.
Send timely reminder to Owner of when scheduled preventive maintenance is due.
Obtain certification/license to practice.
Inspect and service system as necessary.
Comply with applicable federal, state, tribal, and local requirements in the operation and
maintenance of the treatment and dispersal system.
Perform recommended routine maintenance or hire a certified/licensed pumper/hauler to
perform maintenance.
Hire a certified/licensed pumper/hauler to periodically inspect, service, and remove septage
for proper treatment and disposal.
Follow recommendations provided by Regulatory Authority, Service Providers, and/or Owner
to ensure that undesirable or prohibited materials are not discharged to system.
Administer a tracking system for residuals hauling, treatment, and disposal and review to
evaluate compliance with 40 CFR Part 503 (Use and Disposal of Sewage Sludge), 40 CFR Part
257, and applicable state, tribal, and local requirements.
Inventory available residuals handling/treatment capacities and develop contingency plans to
ensure that sufficient capacities are always available.
Obtain certification/license to practice.
Comply with applicable federal, state, tribal, and local requirements in the pumping, hauling,
treatment, and disposal of treatment system residuals.
Conduct final construction inspections to ensure compliance with approved plans and permit
requirements.
Perform compliance inspections at point-of-sale, change-in-use of properties, "targeted
areas," and systems reported to be in violation.
Conduct compliance inspections of residuals hauling, treatment, and disposal.
Inform Owner of any noncompliant items observed during routine servicing of system.
Periodically perform a "walk-over" inspection of the system and correct any deficiencies.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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APPENDIX A: MANAGEMENT MODELS
PROGRAM
ELEMENT
CORRECTIVE
ACTIONS
RECORD
KEEPING,
INVENTORY, &
REPORTING
FINANCIAL
ASSISTANCE &
FUNDING
RESPONSIBLE
PARTY
Regulatory
Authority
Designer
Contractor/
Installer
Owner
Regulatory
Authority
Pumper/Hauler
Owner
Regulatory
Authority
r~
Negotiate compliance schedule with Owner for correcting documented noncompliance items. 1
Administer enforcement program, including fines and/or penalties for failure to comply with
compliance requirements.
Obtain necessary authority to enter property to correct imminent threats to public health if
the Owner/User fails to comply.
Provide Owner with documents (drawings, specifications, modifications, etc.) that may be B|^
required by Regulatory Authority prior to corrective action. Hr^
Perform required repairs, modifications, and upgrades as necessary. ^^^1
Comply with terms and conditions of the negotiated compliance schedule.
Submit required documents for corrective actions to Regulatory Authority.
Hire appropriate certified/licensed Service Providers to perform required corrective actions. ^^^H
Administer a database inventory (locations, site evaluations, record drawings, permits, ^H^B
performed maintenance, inspection reports) of all systems.
Maintain a residuals treatment and disposal tracking system. ^C^J
Maintain a current certified/licensed Service Provider listing that is available to the public. ^r^J
Prepare and submit records of residuals handling as required.
Maintain approved record drawings of system. I-U-I
Maintain maintenance records of system. ^^^fl
Provide drawings, specifications, and maintenance records to new property owner at time of
property transfer.
Provide the legal and financial support to sustain the management program.
Provide a listing of financial assistance programs available to Owner and the qualifying
criteria for each program.
Consider implementing a state or local financing program to assist Owners in upgrading their 1
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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APPENDIX A: MANAGEMENT MODELS
MANAGEMENT MODEL 2: MAINTENANCE CONTRACTS
Objective: To allow use of more complex mechanical treatment options or small clusters through the requirement that
maintenance contracts be maintained between the Owner and maintenance provider to ensure appropriate and timely system
component maintenance by qualified technicians over the service life of the system.
PROGRAM
ELEMENT
PUBLIC
EDUCATION AND
PARTICIPATION
PLANNING
PERFORMANCE
TRAINING AND
CERTIFICATION/
LICENSING
SITE
EVALUATION
RESPONSIBLE
PARTY
Regulatory
Authority
Service Provider
Owner/User
Regulatory
Authority
Developer
Regulatory
Authority
Owner/User
Licensing Board/
Regulatory
Authority
Service Provider
Owner/User
Regulatory
Authority
Site Evaluator
Owner
ACTIVITY1
Educate Owner/User on purpose, use, and care of treatment system.
Provide public review and comment periods of any proposed program and/or rule changes.
Be informed of existing rules, and review and comment on any proposed program or rule
changes.
Participate in advisory committees established by the Regulatory Authority.
Be informed of purpose, use, and care of treatment system.
Be informed of existing rules, and review and comment on any proposed program or rule
changes.
Participate in advisory committees established by the Regulatory Authority.
Coordinate program rules and regulations with state, tribal, local planning and zoning and
other water-related programs.
Evaluate potential risks of wastewater discharges to limit environmental impacts on receiving
environments during the rule making process.
Limit potential risks of environmental impacts from residuals management program and
evaluate available handling/treatment capacities.
Inform local planning authority of rule changes and recommend its evaluation of potential
impacts on land use.
Hire planners, certified site evaluators, and designers to ensure that all lots of proposed
subdivision plats meet requirements for onsite treatment prior to final plat.
Establish system failure criteria to protect public health, e.g., wastewater backups in building,
wastewater ponding on ground surface, insufficient separation from ground water or wells.
Establish minimum performance criteria for manufactured component approvals.
Establish minimum maintenance requirements for approved systems.
Regularly maintain system in proper working order.
Develop and administer training, testing, and certification/licensing program for site
evaluators, designers, contractors, operators, and pumpers/haulers.
Maintain a current certified/licensed Service Provider listing.
Obtain appropriate certification(s)/license(s) and continuing education as required.
Obtain training from the manufacturer or vendor regarding appropriate use, installation
requirements, and O&M procedures of any proprietary equipment to be installed.
Comply with applicable federal, state, tribal, and local requirements.
When using third-party services, contract only with the appropriate certified/licensed Service
Providers.
Codify prescriptive requirements for site evaluation procedures.
Codify criteria for treatment site characteristics suitable for permitted designs that will
prevent unacceptable impacts on ground and surface water resources.
Establish alternative site acceptance criteria for approved systems providing enhanced
pre treatment.
Obtain certification/license to practice.
Describe site and soil characteristics, determine suitability of site with respect to code
requirements, and estimate site's hydraulic and treatment capacity.
Comply with applicable federal, state, tribal, and local requirements in the evaluation of sites
for wastewater treatment and dispersal.
Hire a certified/licensed site evaluatorto perform site evaluation.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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APPENDIX A: MANAGEMENT MODELS
PROGRAM
ELEMENT
DESIGN
CONSTRUCTION
OPERATION &
MAINTENANCE
RESPONSIBLE
PARTY
Regulatory
Authority
Designer
Owner
Regulatory
Authority
Contractor/
Installer
Designer of
Record
Owner
Regulatory
Authority
Operator
Pumper/Hauler
Owner
User
ACTIVITY1
Codify prescriptive, preengineered designs that are suitable for treatment sites that meet the
appropriate prescriptive site criteria.
Administer an evaluation program for approving manufactured components for use with
pre-engineered designs.
Obtain certification/license to practice.
Design a treatment system that is compatible with the site and soil characteristics described by 1
the site evaluator.
Comply with applicable federal, state, tribal, and local requirements in the design of ^^
wastewater treatment and dispersal systems.
Hire a certified/licensed designer to prepare system design.
Administer a permitting program for system construction, including Regulatory Authority ^**
review of proposed system siting and design plans. HJ
Perform final construction inspection for compliance assurance and inventory data collection. H.L
Require that record drawings of constructed system be submitted to the Regulatory Authority B^
by Owner.
Require Owner to submit a copy of system O&M manual to the Regulatory Authority. "
Obtain certification/license to practice.
Construct the system in accordance with the approved plans and specifications.
Prepare record drawings of completed system and submit to Owner. B^
Provide Owner with an O&M manual describing component manufacturer's maintenance and B*
troubleshooting requirements/recommendations. B*
Comply with applicable federal, state, tribal, and local requirements in the design and
construction of wastewater treatment and dispersal systems.
Approve proposed field changes and submit to Owner.
Comply with applicable federal, state, tribal, and local requirements in the design and
construction of wastewater treatment and dispersal systems.
Hire a certified/licensed contractor/installer to construct system. K^
Submit final record drawings of constructed system to Regulatory Authority. f*
Submit a copy of system O&M manual to Regulatory Authority to record required BZT
maintenance. ^k
Provide Owner/User with educational materials regarding system use and care. BL
Send timely reminder to Owner when scheduled preventive maintenance is due. ^^
Administer a program that requires the Owner to attest periodically that he or she holds a Bj7
valid contract with a certified/licensed operator to perform scheduled and any necessary f*
maintenance according to the maintenance requirements described in submitted O&M WLZ.
manual. Bfl
Require Owner to submit a maintenance report signed/sealed by certified/licensed operator ML
immediately following scheduled maintenance.
Obtain certification/license to practice.
Inspect and service system as necessary in accordance with the submitted O&M manual. B^?
Certify to Owner that the required maintenance was performed in a timely manner, BIB
describing any system deficiencies observed. ^"
Comply with applicable federal, state, tribal, and local requirements in the operation and f*
maintenance of the treatment and dispersal system. f^
Obtain certification/license to practice.
Inspect and service system as necessary. BY
Comply with applicable federal, state, tribal, and local requirements in the operation and Bid
maintenance of treatment and dispersal system.
Hire a certified/licensed pumper/hauler to periodically inspect, service, and remove septage or 1
other residuals for proper treatment and disposal.
Maintain contractual agreement with a certified/licensed operator to perform scheduled
maintenance as required.
Inform Regulatory Authority of any change in maintenance contract status.
Follow recommendations provided by Regulatory Authority, Service Providers, and/or Owner
to ensure that undesirable or prohibited materials are not discharged to system.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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APPENDIX A: MANAGEMENT MODELS
PROGRAM
ELEMENT
RESIDUALS
1 MANAGEMENT
Btjfl COMPLIANCE
Ivl INSPECTIONS/
RZfl MONITORING
CORRECTIVE
^9 INVENTORY, &
f^ REPORTING
FINANCIAL
ASSISTANCE &
FUNDING
RESPONSIBLE
PARTY
Regulatory
Authority
Pumper/Hauler
Regulatory
Authority
Operator or
Pumper/Hauler
Owner
Regulatory
Authority
Designer
Contractor/
Installer
Owner
Regulatory
Authority
Operator
Pumper/Hauler
Owner
Regulatory
Authority
ACTIVITY1
Administer a tracking system for residuals hauling, treatment, and disposal and review to
evaluate compliance with 40 CFR Part 503 (Use and Disposal of Sewage Sludge), 40 CFR Part
257, and applicable state, tribal, and local requirements.
Inventory available residuals handling/treatment capacities and develop contingency plans to
ensure that sufficient capacities are always available.
Comply with applicable federal, state, tribal, and local requirements in the pumping, hauling,
treatment, and disposal of treatment system residuals.
Conduct final construction inspections to ensure compliance with approved plans and permit
requirements.
Perform compliance inspections at point-of-sale, change-in-use of properties, "targeted
areas," and/or systems reported to be in violation.
Conduct compliance inspections of residuals hauling, treatment, and disposal.
Administer program for confirming that Owners hold valid maintenance contracts with
certified/licensed operators and for monitoring timely submittals of certified maintenance
reports.
Inform Owner of any noncompliant items observed during routine servicing of system.
Periodically perform a "walk-over" inspection of the system and correct any deficiencies.
Attest to the Regulatory Authority that a valid contract exists with a certified/licensed
operator to perform necessary system maintenance.
Submit a maintenance report signed/sealed by a certified/licensed Service Provider
immediately following scheduled maintenance.
Negotiate compliance schedule with Owner for correcting documented noncompliant items.
Administer enforcement program, including fines and/or penalties for failure to comply with
compliance requirements.
Obtain necessary authority to enter property to correct imminent threats to public health if
the Owner/User fails to comply.
Provide Owner with documents (drawings, specifications, modifications, etc.) that may be
required by Regulatory Authority prior to corrective action.
Perform required repairs, modifications, and upgrades as necessary.
Comply with terms and conditions of the negotiated compliance schedule.
Submit required documents for corrective actions to Regulatory Authority.
Hire appropriate certified/licensed Service Providers to perform required corrective actions.
Administer a database inventory (locations, site evaluations, record drawings, permits,
performed maintenance, inspection reports) of all systems.
Maintain a residuals treatment and disposal tracking system.
Maintain a current certified/licensed Service Provider listing that is available to the public.
Administer an Owner/Service Provider maintenance contract compliance and certified
maintenance report tracking system.
Record maintenance contract requirement on property deed.
Administer a certified maintenance report tracking system.
Provide certified report of all maintenance and observed system deficiencies to Owner.
Prepare and submit records of residuals handling as required.
Maintain approved record drawings and O&M manual of system.
Maintain maintenance records of system.
Provide drawings, specifications, O&M manual, and maintenance records to new property
owner at time of property transfer.
Provide the legal and financial support to sustain the management program.
Provide a listing of financial assistance programs available to Owner/User and the qualifying
criteria for each program.
Consider implementing a state or local financing program to assist Owners in upgrading their
systems.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A: MANAGEMENT MODELS
MANAGEMENT MODEL 3: OPERATING PERMITS
Objective: To issue renewable/revocable operating permits to system Owner that stipulate specific and measurable performance
criteria for the treatment system and periodic submittals of compliance monitoring reports. The performance criteria are based
on risks to public health and water resources posed by wastewater dispersal in the receiving environment. Operating permits
allow the use of clustered or onsite systems on sites with a greater range of site characteristics.
PROGRAM
ELEMENT
PUBLIC
EDUCATION AND
PARTICIPATION
PLANNING
PERFORMANCE
TRAINING AND
CERTIFICATION/
LICENSING
SITE
EVALUATION
RESPONSIBLE
PARTY
Regulatory
Authority
Service Provider
Owner/User
Regulatory
Authority
Developer
Regulatory
Authority
Owner/User
Licensing Board/
Regulatory
Authority
Service Provider
Owner/User
Regulatory
Authority
Site Evaluator
Owner
ACTIVITY1
Educate Owner/User on purpose, use, and care of treatment system.
Provide public review and comment periods of any proposed program and/or rule changes.
Be informed of existing rules, and review and comment on any proposed program or rule
changes.
Participate in advisory committees established by the Regulatory Authority.
Be informed of purpose, use, and care of treatment system.
Be informed of existing rules, and review and comment on any proposed program or rule
changes.
Participate in advisory committees established by the Regulatory Authority.
Coordinate program rules and regulations with state, tribal, and local planning and zoning
and other water-related programs.
Evaluate potential risks of wastewater discharges to limit environmental impacts on receiving
environments during the rule making process.
Limit potential risks of environmental impacts from residuals management program and
evaluate available handling/treatment capacities.
Inform local planning authority of rule changes and recommend its evaluation of potential
impacts on land use.
Hire planners, certified site evaluators, and designers to ensure that all lots of proposed
subdivision plats meet requirements for onsite treatment prior to final plat.
Establish system failure criteria to protect public health, e.g., wastewater backups in building,
wastewater ponding on ground surface, insufficient separation from ground water or wells.
Establish minimum maintenance requirements for approved systems.
Establish performance criteria necessary to protect public health and water resources for
each defined receiving environment in Regulatory Authority's jurisdiction.
Operate and regularly maintain system in proper working order.
Operate system to comply with performance criteria stipulated in operating permit.
Develop and administer a training, testing, and certification/licensing program for site
evaluators, designers, contractors, operators, pumpers/haulers, and inspectors.
Maintain a current certified/licensed Service Provider listing.
Obtain appropriate certification(s)/license(s) and continuing education as required.
Obtain training from the manufacturer or vendor regarding appropriate use, installation
requirements, and O&M procedures of any proprietary equipment to be installed.
Comply with applicable federal, state, tribal, and local requirements.
When using third-party services, contract with only the appropriate certified/licensed Service
Providers.
Codify prescriptive requirements for site evaluation procedures.
Codify criteria for treatment site characteristics suitable for permitted designs that will
prevent unacceptable impacts on ground and surface water resources.
Establish defining characteristics for each receiving environment in the Regulatory
Authority's jurisdiction.
Obtain certification/license to practice.
Describe site and soil characteristics, determine suitability of site with respect to code
requirements, and estimate site's hydraulic and treatment capacity.
Comply with applicable federal, state, tribal, and local requirements in the evaluation of sites
for wastewater treatment and dispersal.
Hire a certified/licensed site evaluator to perform site evaluation.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A: MANAGEMENT MODELS
PROGRAM
ELEMENT
r
^V CONSTRUCTION
OPERATION &
1 MAINTENANCE
RESPONSIBLE
PARTY
Regulatory
Authority
Designer
Owner
Regulatory
Authority
Contractor/
Installer
Designer of
Record
Owner
Regulatory
Authority
Operator
Pumper/Hauler
Owner
User
ACTIVITY1
Codify prescriptive, preengineered designs that are suitable for treatment sites that meet the
appropriate prescriptive site criteria.
Administer a plan review program for engineered designs to meet stipulated performance
criteria.
Require submission of routine operation and emergency contingency plans that will sustain
system performance and avoid unpermitted discharges.
Obtain certification/license to practice.
Certified/licensed designer to design treatment system that is compatible with the site and
soil characteristics described by the site evaluator.
Comply with applicable federal, state, tribal, and local requirements in the design of
wastewater treatment and dispersal systems.
Hire a certified/licensed designer to prepare system design.
Administer a permitting program for system construction, including Regulatory Authority
review of proposed system siting and design plans.
Require designer of record to certify that completed system construction is in substantial
compliance with approved plans and specifications.
Require that record drawings of constructed system be submitted to the Regulatory
Authority by Owner.
Require Owner to submit a copy of system O&M manual to the Regulatory Authority.
Obtain certification/license to practice.
Construct the system in accordance with the approved plans and specifications.
Prepare record drawings of completed system and submit to Owner.
Provide Owner with an O&M manual describing component manufacturer's maintenance
and troubleshooting requirements/recommendations.
Comply with applicable federal, state, tribal, and local requirements in the design and
construction of wastewater treatment and dispersal systems.
Approve proposed field changes and submit to Owner.
Certify that construction of the system is substantially in conformance with the approved
plans and specifications.
Hire a certified/licensed contractor/installer to construct system.
Submit final record drawings of constructed system to Regulatory Authority.
Submit a copy of system O&M manual to Regulatory Authority to record required
maintenance.
Provide Owner/User with educational materials regarding system use and care.
Administer a program of renewable/revocable operating permits that are issued to Owner
stipulating system performance criteria, compliance monitoring reporting schedule, term of
permit, and renewal option upon documented compliance with permit.
Track and review compliance monitoring reports to ensure that systems are operating in
accordance with operating permits.
Obtain certification/license to practice.
Inspect and service system as necessary in accordance with the submitted O&M manual
and/or operating permit stipulations.
Certify to Owner that the required maintenance was performed in a timely manner,
describing any system deficiencies observed.
Comply with applicable federal, state, tribal, and local requirements in the operation and
maintenance of the treatment and dispersal system.
Obtain certification/license to practice.
Inspect and service system as necessary.
Comply with applicable federal, state, tribal, and local requirements in the operation and
maintenance of the treatment and dispersal system.
Hire a certified/licensed pumper/hauler or operator to maintain system.
Maintain system in proper working order.
Operate and maintain the system in accordance with O&M manual and/or operating permit
stipulations.
Submit compliance monitoring reports to the Regulatory Authority according to the
schedule stipulated in the operating permit.
Follow recommendations provided by Regulatory Authority and/or Service Providers to
ensure that undesirable or prohibited materials are not discharged to system.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A: MANAGEMENT MODELS
PROGRAM
ELEMENT
RESIDUALS
MANAGEMENT
COMPLIANCE
INSPECTIONS/
MONITORING
CORRECTIVE
ACTIONS
RECORD
KEEPING,
INVENTORY, &
REPORTING
FINANCIAL
ASSISTANCE &
FUNDING
RESPONSIBLE
PARTY
Regulatory
Authority
Pumper/Hauler
Regulatory
Authority
Operator or
Pumper/Hauler
Owner
Regulatory
Authority
Designer
Contractor/
Installer
Inspector
Owner
Regulatory
Authority
Operator or
Inspector
Pumper/Hauler
Owner
Regulatory
Authority
ACTIVITY1
Administer a tracking system for residuals hauling, treatment, and disposal and review to
evaluate compliance with 40 CFR Part 503 Use and Disposal of Sewage Sludge, 40 CFR Part
257, and applicable state, tribal, and local requirements.
Inventory available residuals handling/treatment capacities and develop contingency plans to
ensure that sufficient capacities are always available.
Comply with applicable federal, state, tribal, and local requirements in the pumping, hauling,
treatment, and disposal of treatment system residuals.
Perform inspection programs at point-of-sale, change-in-use of properties, "targeted areas,"
and/or systems reported to be in violation.
Conduct compliance inspections of residuals hauling, treatment, and disposal.
Administer a program to monitor timely submittals of acceptable compliance maintenance
reports.
Notify Owner of impending scheduled submittals of compliance monitoring reports.
Perform system inspections randomly and/or at time of operating permit renewal.
Inform Owner of any noncompliant items observed during routine servicing of system.
Submit compliance monitoring reports to Regulatory Authority as stipulated in operating
permit.
Submit compliance inspection report signed/sealed by a certified/licensed inspector prior to
applying for renewal of operating permit.
Negotiate compliance schedule with Owner for correcting documented noncompliant items.
Administer enforcement program including fines and/or penalties for failure to comply with
compliance requirements.
Obtain necessary authority to enter property to correct imminent threats to public health if
the Owner/User fails to comply.
Require system inspection by certified inspector at time of operating permit renewal.
Provide Owner with documents (drawings, specifications, modifications, etc.) that may be
required by Regulatory Authority prior to corrective action.
Perform required repairs, modifications, and upgrades as necessary.
Obtain certification/license to practice.
Inspect treatment system for compliance with operating permit prior to permit renewal.
Comply with terms and conditions of the negotiated compliance schedule.
Submit required documents for corrective actions to Regulatory Authority.
Hire appropriate certified/licensed Service Providers to perform required corrective actions.
Administer a database inventory (locations, site evaluations, record drawings, permits,
performed maintenance, and inspection reports) of all systems.
Maintain a residuals treatment and disposal tracking system.
Maintain a current certified/licensed Service Provider listing that is available to the public.
Administer a tracking system for operating permits.
Administer a tracking database for compliance reports.
Provide certified report of all maintenance and observed system deficiencies to Owner.
Perform system monitoring as stipulated in Owner's operating permit.
Prepare and submit records of residuals handling as required.
Maintain approved record drawings and O&M manual of system.
Maintain maintenance records of system.
Submit compliance monitoring reports to Regulatory Authority.
Provide drawings, specifications, O&M manual, and maintenance records to new property
owner at time of property transfer.
Provide the legal and financial support to sustain the management program.
Provide a listing of financial assistance programs available to Owner/User and the qualifying
criteria for each program.
Consider implementing a state or local financing program to assist Owners in upgrading
their systems.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A: MANAGEMENT MODELS
MANAGEMENT MODEL 4: RME OPERATION AND MAINTENANCE
Objective: To ensure that onsite/decentralized systems consistently meet their stipulated performance criteria through
Responsible Management Entities that are responsible for operation and performance of systems within their service areas.
PROGRAM
ELEMENT
PUBLIC
EDUCATION AND
PARTICIPATION
PLANNING
PERFORMANCE
TRAINING AND
CERTIFICATION/
LICENSING
RESPONSIBLE
PARTY
Regulatory
Authority
Service Provider
Owner/User
RME
Regulatory
Authority
Developer
RME
Regulatory
Authority
Owner
RME
Licensing Board/
Regulatory
Authority
Service Provider
Owner
RME
ACTIVITY1
Educate Owner/User on purpose, use, and care of treatment system.
Hold public meetings to inform the public of any proposed program and/or rule changes.
Be informed of existing rules, and review and comment on any proposed program or rule
changes.
Participate in advisory committees established by the Regulatory Authority.
Be informed of purpose, use, and care of treatment system.
Be informed of existing rules and review and comment on any proposed program and/or rule
changes.
Participate in advisory committees established by the Regulatory Authority.
Inform Owner/User of care and use of system.
Inform Owner/User of RME requirements and prohibited uses of system.
Coordinate program rules and regulations with state, tribal, and local planning and zoning
and other water-related programs.
Evaluate potential risks of wastewater discharges to limit environmental impacts on receiving
environments during the rule making process.
Limit potential risks of environmental impacts from residuals management program and
evaluate available handling/treatment capacities.
Inform local planning authority of rule changes and recommend their evaluation of potential
impacts on land use.
Hire planners, certified site evaluators, and designers to ensure that all lots of proposed
subdivision plats meet requirements for onsite treatment prior to final plat.
Develop criteria (e.g., site evaluation, design, construction) to be required of systems for
acceptance into O&M program and inform Owners.
Continuously evaluate existing wastewater treatment needs and forecast future needs.
Establish system failure criteria to protect public health, e.g., wastewater backups in building,
wastewater ponding on ground surface, insufficient separation from ground water or wells.
Establish minimum maintenance requirements for approved systems.
Establish performance criteria necessary to protect public health and water resources for each
defined receiving environment in the Regulatory Authority's jurisdiction.
Regularly maintain system components in proper working order.
Comply with any RME requirements regarding care and use of the system.
Operate systems to comply with performance criteria stipulated in the operating permits.
Develop and administer training, testing, and certification/licensing program for site
evaluators, designers, contractors, operators, pumpers/haulers, and inspectors.
Maintain a current certified/licensed Service Provider listing.
Obtain appropriate certification(s)/license(s) and continuing education as required.
Obtain training from the manufacturer or vendor regarding appropriate use, installation
requirements, and operation and maintenance procedures of any proprietary equipment to
be installed.
Comply with applicable federal, state, tribal, and local requirements in the evaluation of sites
for wastewater treatment and dispersal.
When using third-party services, contract only with the appropriate certified/licensed Service
Providers.
When using third-party services, contract with only the appropriate certified/licensed Service
Providers.
Ensure that RME staff who operate and/or maintain systems obtain appropriate
certification(s)/license(s) to practice.
Arrange for supplemental training as needed for Service Providers and/or staff to manage,
operate, and/or maintain systems.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A: MANAGEMENT MODELS
PROGRAM
ELEMENT
SITE
EVALUATION
DESIGN
CONSTRUCTION
RESPONSIBLE
PARTY
Regulatory
Authority
Site Evaluator
Owner
Regulatory
Authority
Designer
Owner
Regulatory
Authority
Contractor/
Installer
Designer of
Record
Owner
ACTIVITY1
Codify prescriptive requirements for site evaluation procedures.
Codify criteria for treatment site characteristics suitable for permitted designs that will
prevent unacceptable impacts on ground and surface water resources.
Establish the defining characteristics of each receiving environment in the Regulatory
Authority's jurisdiction.
Approve and oversee site evaluation procedures required by RME for system acceptance
in the O&M program to ensure that system designs are appropriate for the sites and their
stipulated performance criteria.
Obtain certification/license to practice.
Describe site and soil characteristics, determine suitability of site with respect to code
requirements, and estimate site's hydraulic and treatment capacity.
Comply with applicable federal, state, tribal, and local requirements in the evaluation of sites
for wastewater treatment and dispersal.
Hire a certified/licensed site evaluatorto perform site evaluation.
Comply with any additional siting requirements established by RME for system acceptance in I
the O&M program.
Codify prescriptive, pre-engineered designs that are suitable for treatment sites that meet the 1
appropriate prescriptive site criteria.
Administer a plan review program for engineered designs to meet stipulated performance
criteria.
Require submission of routine operation and emergency contingency plans that will sustain
system performance and avoid unpermitted discharges.
Obtain certification/license to practice.
Design treatment system that is compatible with the site and soil characteristics described by
the site evaluator.
Comply with applicable federal, state, tribal, and local requirements in the design of
wastewater treatment and dispersal systems.
Hire a certified/licensed designer to prepare system design.
Comply with any additional design requirements established by the RME for system
acceptance in the O&M program.
Administer a permitting program for system construction, including Regulatory Authority
review of proposed system siting and design plans.
Require designer of record to certify that completed system construction is in substantial
compliance with approved plans and specifications.
Require that record drawings of constructed system be submitted to the Regulatory Authority 1
by Owner.
Require Owner to submit a copy of system O&M manual to the Regulatory Authority and
RME.
Obtain certification/license to practice.
Construct system in accordance with the approved plans and specifications.
Prepare record drawings of completed system and submit to Owner.
Provide Owner with an O&M manual describing component manufacturer's maintenance and
troubleshooting requirements/recommendations.
Comply with applicable federal, state, tribal, and local requirements in the design and
construction of wastewater treatment and dispersal systems.
Approve proposed field changes and submit to Owner.
Certify that construction of the system is substantially in conformance with the approved
plans and specifications.
Comply with any additional construction requirements established by the RME for system
acceptance in the O&M program.
Hire a certified/licensed designer to prepare system design.
Submit final record drawings of constructed system to Regulatory Authority.
Submit a copy of the system O&M manual to the Regulatory Authority and RME to record
required maintenance.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A: MANAGEMENT MODELS
PROGRAM
ELEMENT
OPERATION &
MAINTENANCE
RESIDUALS
MANAGEMENT
COMPLIANCE
INSPECTIONS/
MONITORING
RESPONSIBLE
PARTY
Regulatory
Authority
Operator
Pumper/Hauler
Owner/User
RME
Regulatory
Authority
Pumper/Hauler
RME
Regulatory
Authority
Inspector
RME
ACTIVITY1
1 Provide Owner/User with educational materials regarding system use and care.
1 Administer a program of renewable/revocable operating permits that are issued to RME,
stipulating system performance criteria, compliance monitoring reporting schedule, term of
permit, and renewal option upon documented compliance with operating permit stipulations.
1 Track and review compliance monitoring reports to ensure that systems are operating in
accordance with operating permits.
1 Consider replacing individual system operating permits with general permits issued to the
RME for classes of systems.
1 Inspect and service the system as necessary in accordance with the submitted O&M manual
and/or operating permit stipulations.
1 Perform system monitoring as stipulated in RME's operating permit.
1 Certify to RME that the required maintenance and monitoring was performed in a timely
manner and noting any system deficiencies.
1 Comply with applicable federal, state, tribal, and local requirements in the operation and
maintenance of the treatment and dispersal system.
1 Obtain certification/license to practice.
1 Inspect and service system as necessary.
1 Comply with applicable federal, state, tribal, and local requirements in the operation and
maintenance of treatment and dispersal system.
1 Follow recommendations provided by Regulatory Authority, Service Providers, and/or Owner
to ensure that undesirable or prohibited materials are not discharged to system.
1 Maintain system components in proper working order.
' Comply with any RME requirements regarding care and use of system.
' Operate and maintain systems in accordance with the stipulated operating permit
requirements.
' Submit compliance monitoring reports to the Regulatory Authority according to the schedule
stipulated in the operating permit.
1 Hire a certified/licensed pumper/hauler or operator to maintain system.
1 Administer a tracking system for residuals hauling, treatment, and disposal and review to
evaluate compliance with 40 CFR Part 503 Use and Disposal of Sewage Sludge, 40 CFR Part
257, and applicable state, tribal, and local requirements.
1 Inventory available residuals handling/treatment capacities and develop contingency plans to
ensure that sufficient capacities are always available.
1 Comply with applicable federal, state, tribal, and local requirements in the pumping, hauling,
treatment, and disposal of wastewater treatment system residuals.
1 Hire a certified/licensed pumper/hauler to remove, treat, and dispose of residuals.
' Comply with applicable federal, state, tribal, and local requirements in the pumping, hauling,
treatment, and disposal of treatment system residuals.
' Inventory available residuals handling/treatment capacities and develop contingency plans
when insufficient capacities are available.
1 Perform inspection programs at point-of-sale, change-in-use of properties, "targeted areas,"
and/or systems reported to be in violation.
1 Conduct compliance inspections of residuals hauling, treatment, and disposal.
1 Administer a program to monitor timely submittals of acceptable compliance maintenance
reports.
1 Perform system inspections randomly and/or at time of operating permit renewal.
' Obtain certification/license to practice.
' Perform system compliance inspections for RME in accordance with prevailing Regulatory
Authority requirements.
' Submit compliance monitoring reports to the Regulatory Authority as stipulated in operating
permit.
' Submit compliance inspection report signed/sealed by a certified/licensed inspector prior to
applying for renewal of operating permit.
' Conduct regular reviews of management program with Owner/User and Regulatory
Authority to optimize system operation program.
' Hire a certified/licensed inspector to inspect system compliance status.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A: MANAGEMENT MODELS
PROGRAM
ELEMENT
CORRECTIVE
ACTIONS
RECORD
KEEPING,
INVENTORY, &
REPORTING
FINANCIAL
ASSISTANCE &
FUNDING
RESPONSIBLE
PARTY
Regulatory
Authority
Designer
Contractor/
Installer
Inspector
Owner
RME
Regulatory
Authority
Operator or
Inspector
Pumper/Hauler
Owner
RME
Regulatory
Authority
RME
ACTIVITY1
Negotiate compliance schedules with RME for correcting documented noncompliance items.
Administer enforcement program including fines and/or penalties for failure to comply with
compliance requirements.
Obtain necessary authority to enter property to correct imminent threats to public health if
the Owner/User fails to comply.
Require system inspection by certified inspector at time of operating permit renewal.
Negotiate compliance schedules with RME, Owner/User, or both, for correcting documented
noncompliance items.
Provide Owner/RME with documents (drawings, specifications, modifications, etc.) that may
be required by the Regulatory Authority prior to corrective actions.
Perform required repairs, modifications, and upgrades as necessary.
Inspect treatment system for compliance with operating permit prior to permit renewal.
Comply with terms and conditions of the negotiated compliance schedule for component
replacement/repairs.
Submit required documents for corrective actions to Regulatory Authority.
Hire appropriate certified/licensed Service Providers to perform required corrective actions.
Comply with terms and conditions of the negotiated compliance schedule for system
performance.
Administer a database inventory (locations, site evaluations, record drawings, permits,
performed maintenance, and inspection reports) of all systems.
Maintain a residuals treatment and disposal tracking system.
Maintain a current certified/licensed Service Provider listing that is available to the public.
Administer a tracking system for operating permits.
Administer a tracking database for compliance reports.
Administer periodic financial, management, and technical audits of RME.
Provide certified report of all maintenance and observed system deficiencies to RME.
Provide certified report of all observed system deficiencies to Owner.
Perform system monitoring as stipulated in RME's operating permit.
Prepare and submit records of residuals handling as required.
Maintain approved record drawings and O&M manual of system.
Maintain maintenance records of system.
Provide drawings, specifications, O&M manual, and maintenance records to new property
owner at time of property transfer.
Maintain system monitoring and service records.
Inventory, collect, and provide permit information to Regulatory Authority.
Provide the legal and financial support to sustain the management program.
Provide a listing of financial assistance programs available to Owner/User and the qualifying
criteria for each program.
Consider implementing a state or local financing program to assist Owners in upgrading their
systems.
Conduct regular reviews of management program with Owner/User and Regulatory
Authority to optimize operations.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A: MANAGEMENT MODELS
MANAGEMENT MODEL 5: RME OWNERSHIP
Objective: To provide professional management of the planning, siting, design, construction, operation, and maintenance of
onsite/decentralized systems through Responsible Management Entities that own and manage individual and clustered systems
within their service areas.
PROGRAM
ELEMENT
PUBLIC
EDUCATION AND
PARTICIPATION
PLANNING
PERFORMANCE
TRAINING AND
CERTIFICATION/
LICENSING
RESPONSIBLE
PARTY
Regulatory
Authority
Service Provider
RME
User
Regulatory
Authority
Developer
RME
Regulatory
Authority
RME
User
Licensing Board/
Regulatory
Authority
Service Provider
RME
ACTIVITY1
Educate Owner/User on purpose, use, and care of treatment system.
Provide public review and comment periods of any proposed program and/or rule changes.
Be informed of existing rules, and review and comment on any proposed program or rule
changes.
Participate in advisory committees established by the Regulatory Authority.
Inform User of care and use of system.
Inform User of RME requirements and prohibited uses of system.
Be informed of purpose, use, and care of treatment system.
Coordinate program rules and regulations with state, tribal, and local planning and zoning
and other water-related programs.
Evaluate potential risks of wastewater discharges to limit environmental impacts on receiving
environments during the rule making process.
Limit potential risks of environmental impacts from residuals management program and
evaluate available handling/treatment capacities.
Inform local planning authority of rule changes and recommend their evaluation of potential
impacts on land use.
Hire planners, certified site evaluators, and designers to ensure that all lots of proposed
subdivision plats meet requirements for onsite treatment prior to final plat.
Continuously evaluate existing wastewater treatment needs and forecast future needs.
Require developers to submit proposed subdivision plats to RME for review and comment to
ensure compatibility with RME requirements.
Plan most cost-effective approach to meeting treatment needs through appropriate mix of
central sewerage, clusters, and individual onsite systems.
Establish system failure criteria to protect public health, e.g., wastewater backups in building,
wastewater ponding on ground surface, insufficient separation from ground water or wells.
Establish minimum maintenance requirements for approved systems.
Establish performance criteria necessary to protect public health and water resources for each
defined receiving environment in the Regulatory Authority's jurisdiction.
Operate, maintain, and repair systems to comply with performance criteria stipulated in the
operating permits.
Comply with any RME requirements regarding care and use of the system.
Develop and administer training, testing, and certification/licensing program for site
evaluators, designers, contractors, pumpers/haulers, inspectors, and operators.
Maintain a current certified/licensed Service Provider listing.
Obtain appropriate certification(s)/license(s) and continuing education as required.
Obtain training from the manufacturer or vendor regarding appropriate use, installation
requirements, and operation and maintenance procedures of any proprietary equipment to
be installed.
Comply with applicable federal, state, tribal, and local requirements in the evaluation of sites
for wastewater treatment and dispersal.
When using-third party services, contract with only certified/licensed Service Providers.
RME staff who site, design, construct, operate, and/or maintain systems must obtain
appropriate certification(s)/license(s) to practice.
Arrange for supplemental training as needed for Service Providers and/or staff to manage,
operate, and/or maintain systems.
1 Activities in bold are activities added to program elements from the preceding Management Model.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
-------
APPENDIX A: MANAGEMENT MODELS
PROGRAM
ELEMENT
SITE
EVALUATION
DESIGN
CONSTRUCTION
RESPONSIBLE
PARTY
Regulatory
Authority
Site Evaluator
RME
Regulatory
Authority
Designer
RME
Regulatory
Design
Contractor/
Installer
Designer of
Record
RME
ACTIVITY1
Codify prescriptive requirements for site evaluation procedures.
Codify criteria for treatment site characteristics suitable for permitted designs that will
prevent unacceptable impacts on ground and surface water resources.
Establish the defining characteristics of each receiving environment in the Regulatory
Authority's jurisdiction.
Approve and oversee site evaluation procedures used by RME to ensure that system designs
are appropriate for the sites and their stipulated performance criteria.
Obtain certification/license to practice.
Describe site and soil characteristics, determine suitability of site with respect to code
requirements, and estimate site's hydraulic and treatment capacity.
Comply with applicable federal, state, tribal, and local requirements in the evaluation of sites
for wastewater treatment and dispersal.
Hire a certified/licensed site evaluatorto perform site evaluation.
Codify prescriptive, pre-engineered designs that are suitable for treatment sites that meet the
appropriate prescriptive site criteria.
Administer the plan review program for engineered designs to meet stipulated performance
criteria.
Require routine operation and emergency contingency plans that will sustain system
performance and avoid the submission of unpermitted discharges.
Obtain certification/license to practice.
Design treatment system that is compatible with the site and soil characteristics described by
the site evaluator.
Comply with applicable federal, state, tribal, and local requirements in the design of
wastewater treatment and dispersal systems.
Hire a certified/licensed designer to prepare system design.
Administer a permitting program for system construction, including Regulatory Authority
review of proposed system siting and design plans.
Require designer of record to certify that completed system construction is in substantial
compliance with approved plans and specifications.
Require that record drawings of constructed system be submitted to the Regulatory Authority
by RME.
Obtain certification/license to practice.
Construct system in accordance with the approved plans and specifications.
Prepare record drawings of completed system and submit to RME.
Provide RME with an O&M manual describing component manufacturer's maintenance and
troubleshooting requirements/recommendations.
Comply with applicable federal, state, tribal, and local requirements in the design and
construction of wastewater treatment and dispersal systems.
Approve proposed field changes and submit to RME.
Certify that construction of the system is substantially in conformance with the approved
plans and specifications.
Hire a certified/licensed designer to prepare system design.
Submit final record drawings of constructed system to Regulatory Authority.
Submit a copy of system O&M manual to the Regulatory Authority to record required
maintenance.
^P "^^1
^^1
1 Activities in bold are activities added to program elements from the preceding Management Model.
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APPENDIX A: MANAGEMENT MODELS
PROGRAM
ELEMENT
OPERATION &
MAINTENANCE
RESIDUALS
MANAGEMENT
COMPLIANCE
INSPECTIONS/
MONITORING
RESPONSIBLE
PARTY
Regulatory
Authority
Operator
Pumper/Hauler
User
RME
Regulatory
Authority
Pumper/ Hauler
RME
Regulatory
Authority
Inspector
RME
ACTIVITY1
1 Provide User with educational materials regarding system use and care.
1 Administer a program of renewable/revocable operating permits that are issued to RME that
stipulate system performance, compliance monitoring reporting schedule, term of permit, and
renewal option upon documented compliance with operating permit stipulations.
1 Track and review compliance monitoring reports to ensure that systems are operating in
accordance with operating permits.
1 Consider replacing individual system operating permits with general permits issued to RME
for classes of systems.
1 Inspect and service system as necessary in accordance with the submitted O&M manual and/or
operating permit stipulations.
1 Perform system monitoring as stipulated in RME's operating permit.
1 Certify to RME that the required maintenance and monitoring were performed in a timely
manner and noting any system deficiencies.
1 Comply with applicable federal, state, tribal, and local requirements in the operation and
maintenance of the treatment and dispersal system.
1 Obtain certification/license to practice.
1 Inspect and service system as necessary.
1 Comply with applicable federal, state, tribal, and local requirements in the operation and
maintenance of the treatment and dispersal system.
1 Follow recommendations provided by Regulatory Authority, Service Providers, and/or Owner
to ensure that undesirable or prohibited materials are not discharged to system.
1 Comply with any RME requirements regarding care and use of system.
1 Operate and maintain systems in accordance with the stipulated operating permit
requirements.
1 Submit compliance monitoring reports to the Regulatory Authority according to the schedule
stipulated in the operating permit.
1 Hire a certified/licensed pumper/hauler or operator to maintain system.
1 Administer a tracking system for residuals hauling, treatment, and disposal and review to
evaluate compliance with 40 CFR Part 503 Use and Disposal of Sewage Sludge, 40 CFR Part
257, and applicable state, tribal, and local requirements.
1 Inventory available residuals handling/treatment capacities and develop contingency plans
when capacities available are insufficient.
1 Comply with applicable federal, state, tribal, and local requirements in the pumping, hauling,
treatment, and disposal of wastewater treatment system residuals.
1 Hire a certified/licensed pumper/hauler to remove, treat, and dispose of residuals.
1 Comply with applicable federal, state, tribal, and local requirements in the pumping, hauling,
treatment, and disposal of treatment system residuals.
1 Inventory available residuals handling/treatment capacities and develop contingency plans
when capacities available are insufficient.
1 Perform inspection programs at point-of-sale, change-in-use of properties, "targeted areas,"
and/or systems reported to be in violation.
1 Conduct compliance inspections of residuals hauling, treatment, and disposal.
1 Administer a program to monitor timely submittals of acceptable compliance maintenance
reports.
1 Perform system inspections randomly and/or at the time of operating permit renewal.
1 Obtain certification/license to practice.
1 Perform system compliance inspections for RME in accordance with prevailing Regulatory
Authority requirements.
1 Submit compliance monitoring reports to Regulatory Authority as stipulated in operating
permit.
1 Submit a compliance inspection report signed/sealed by a certified/licensed inspector prior to
applying for renewal of operating permit.
1 Conduct regular reviews of management program with Regulatory Authority to optimize
system operation program.
1 Hire a certified/licensed inspector to inspect system compliance status.
1 Activities in bold are activities added to program elements from the preceding Management Model.
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^^^^^^^^^^^^^^^^^^^^^f APPEND* A: MANAGEMENT MODELS
PROGRAM
ELEMENT
CORRECTIVE
ACTIONS
RECORD
KEEPING,
INVENTORY, &
REPORTING
FINANCIAL
ASSISTANCE &
FUNDING
RESPONSIBLE
PARTY
Regulatory
Authority
Designer
Contractor/
Installer
Inspector
RME
Regulatory
Authority
Operator or
Inspector
Pumper/Hauler
RME
Regulatory
Authority
RME
ACTIVITY1
Negotiate compliance schedules with RME for correcting documented noncompliance items.
Administer the enforcement program including fines and/or penalties for failure to comply
with compliance requirements.
Require system inspection by a certified inspector at time of operating permit renewal.
Negotiate compliance schedules with RME for correcting documented noncompliance items.
Provide RME with documents (drawings, specifications, modifications, etc.) that may be
required by the Regulatory Authority prior to corrective action.
Perform required repairs, modifications, and upgrades as necessary.
Inspect treatment system for compliance with operating permit prior to permit renewal.
Comply with terms and conditions of the negotiated compliance schedule.
Submit required documents for corrective actions to the Regulatory Authority.
Hire appropriate certified/licensed Service Providers to perform required corrective actions.
Administer a database inventory (locations, site evaluations, record drawings, permits, and
inspection reports) of all systems within the Regulatory Authority's jurisdiction.
Maintain a residuals treatment and disposal tracking system.
Maintain a current certified/licensed Service Provider listing, which is available to the RMEs.
Administer a tracking system for operating permits.
Administer a tracking database for compliance reports.
Administer financial, management, and technical audits of RME.
Provide a certified report of all maintenance and observed system deficiencies to RME.
Provide a certified report of all observed system deficiencies to Owner.
Perform system monitoring as stipulated in RME's operating permit.
Prepare and submit records of residuals handling as required.
Maintain system monitoring and service records.
Inventory, collect, and provide permit information to Regulatory Authority.
Provide the legal and financial support to sustain the regulatory program.
Provide a listing of financial assistance programs available to RME and the qualifying criteria
for each program.
Consider implementing a state or local financing program to assist RME in upgrading systems.
Conduct regular reviews of management program with Regulatory Authority to optimize
operations.
1 Activities in bold are activities added to program elements from the preceding Management Model.
1
^J
^r *^l
I
/IQ 1
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Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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APPENDIX B:
RELATIONSHIP TO OTHER EPA
WATER PROGRAMS
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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APPENDIX B: RELATIONSHIP TO OTHER EPA WATER PROGRAMS
APPENDIX B: RELATIONSHIP TO
OTHER EPA WATER PROGRAMS
The Management Guidelines will help support the
activities and approaches being applied in several other
EPA programs and contribute toward achieving mutual
water quality objectives and public health protection goals.
Related programs include watershed management, water
quality management, biosolids and residuals management,
nonpoint source control, source water assessment and
protection, underground injection control, water permitting,
and coastal zone management. The relationship of the
Management Guidelines to these companion programs is
summarized in the following discussion.
Watershed Management. The Management
Guidelines can be integrated into a comprehensive
watershed approach at the state, tribal, or local
government level. There are clear benefits to managing
onsite/centralized systems at the basin, watershed,
or subwatershed level. Ideally, the use of a watershed
approach will facilitate the identification of both existing
and anticipated sources of pollutants of concern, e.g.,
nutrient and pathogens, and allow the appropriate
jurisdictions to take coordinated actions to protect or
restore an identified resource. In such an approach,
short- and long-term wastewater management plans
and actions for both centralized and decentralized
systems can be integrated into a comprehensive plan
that may include analyses and actions that address the
impacts of other contributing sources of pollutants such
as animal waste, wildlife, or agriculture. The use of a
watershed approach also encourages the coordination
of management entities and actions across jurisdictions.
Interjurisdictional planning and coordination can result
in more efficient resource utilization, including data
sharing, and also help to avoid inconsistent management
policies or requirements that can cause unanticipated
consequences, such as accelerated growth in adjacent
communities due to their less burdensome requirements
or lower costs.
National Pollutant Discharge Elimination System
(NPDES). In 1972 Congress established the NPDES
program under the Clean Water Act (CWA). Under
the CWA, discharge of a pollutant from a point source
to waters of the United States is prohibited unless that
discharge is authorized by an NPDES (CWA Section
402) or wetlands (CWA Section 404) permit. The
NPDES program includes discharges to ground water
with a direct hydrologic connection to surface water.
NPDES permits are issued by a state or tribe authorized
to implement the NPDES program, or by EPA if there
is no authorized state or tribe. The NPDES permit
establishes necessary technology-based and water
quality-based terms, limitations, and conditions on the
discharge to protect public health and the environment.
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APPENDIX B: RELATIONSHIP TO OTHER EPA WATER PROGRAMS
EPA's NPDES regulations (40 CFR 122.28) provide for
issuance of a "general permit" to authorize discharges
from similarly situated facilities such as onsite and
clustered systems. Several states, including Arkansas,
Kentucky, and North Carolina, issue general permits.
The draft Management Handbook contains an example
of the key aspects of a general permit.
Biosolids and Residuals Management. The 1987
Amendments to the CWA required the development
of comprehensive requirements for the use and disposal
of sewage sludge (biosolids). As defined in the resulting
"Use and Disposal of Sewage Sludge" rule at 40 CFR
Part 503, sewage sludge includes the residuals produced
by the treatment of domestic sewage (other than grit and
screenings) and includes septage from onsite and clustered
wastewater treatment systems. The Part 503 rule (along
with the nonhazardous solid waste disposal requirements
under 40 CFR Parts 257 and 258, which apply when
domestic septage is mixed with other waste sources by
pumpers) establish minimum federal requirements for the
proper management of septage from onsite and clustered
wastewater treatment systems. EPA has developed
supplemental guidance on the management of septage
in Domestic Septage Regulatory Guidance: A Guide to the
EPA 503 Ruk(13) and Guide to Septage Treatment and
DisposalW).The use and disposal of sewage sludge is usually
regulated as part of the NPDES program.
Storm Water Management. Historically, polluted
storm water runoff was often transported by municipal
separate storm sewer systems (MS4s) or discharged
from industrial or construction activities and ultimately
discharged into local rivers and streams without treatment.
Common pollutants include oil and grease from roadways,
pesticides from lawns, sediment from construction sites,
and carelessly discarded trash, such as cigarette butts,
paper wrappers, and plastic bottles. When deposited
into nearby waterways through MS4 discharges, these
pollutants can impair the waterways, thereby discouraging
recreational use of the resource, contaminating drinking
water supplies, and interfering with the habitat for fish,
other aquatic organisms, and wildlife.
In 1990 EPA promulgated rules establishing
Phase I of the National Pollutant Discharge Elimination
System (NPDES) storm water program. The Phase
I program requires communities with MS4s serving
populations of 100,000 or greater or sites with industrial
or construction activity to implement a storm water
management program as a means to control polluted
discharges. The Storm Water Phase II Rule, promulgated
on December 8, 1999, extends coverage of the NPDES
storm water program to certain "small" MS4s and small
construction sites. Operators of regulated small MS4s are
required to design their programs to reduce the discharge
of pollutants to the "maximum extent practicable,"
protect water quality, and satisfy the appropriate water
quality requirements of the Clean Water Act.
The Phase II program for MS4s is designed to
accommodate a general permit approach using a Notice
of Intent (NOI) as the permit application. The operator
of a regulated small MS4 must include in the permit
application, or NOI, its chosen best management
practices (BMPs) and measurable goals for each of six
minimum control measures. To help permittees identify
the most appropriate BMPs for their programs, EPA will
issue a "menu" of BMPs to serve as guidance.
One measure in a Phase II storm water program
is the detection and elimination of illicit discharges.
EPA has determined that many onsite and clustered
systems (typically those that discharge to surface waters)
illicitly discharge effluent to storm ditches that drain
to storm sewers. In such cases there must be a permit
approach to protect the MS4 from pollutants associated
with the onsite and clustered system. The Management
Guidelines can be used to assist NPDES permit
applicants in determining appropriate BMPs.
Water Quality Management (including Total
Maximum Daily Loads). Nationally, states have
reported in their Clean Water Act Section 303 (d)
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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APPENDIX B: RELATIONSHIP TO OTHER EPA WATER PROGRAMS
reports that designated uses are not being met for
approximately 5,400 water bodies because of pathogens
and that approximately 4,700 water bodies are impaired
by nutrients'12'. Onsite wastewater treatment systems
are often significant contributors of pathogens and
nutrients. Under EPA's current requirements a Total
Maximum Daily Load (TMDL) determination is required
when the total loading of pollutants to a water body
results in a violation of water quality standards. The
Agency promotes the control and management of both
point and nonpoint source discharges on a watershed
basis. If onsite and clustered systems are determined
to be a significant source of the pollutants, increased
management is needed.
The most common approach to resolving
problems with onsite wastewater treatment systems
has been to replace the systems with a centralized
wastewater treatment and collection system.
However, a decentralized approach, with a high level
of management, is capable of meeting water quality
objectives while offering communities a wider range
of options. In these situations, the Management
Guidelines can be a valuable tool to use as the basis of
TMDL/watershed implementation plans that promote
improved management to address identified problems.
An appropriate level of management, as described in this
document, could reduce pollutant loads to achieve water
quality standards. EPA also recognizes, as discussed more
fully above, that there are situations where a system is
subject to the NPDES program. In such cases, permit
requirements should be consistent with any applicable
TMDL and water quality standards.
Water Quality Standards. State and tribal water
quality standards do not consistently address pathogen
and nutrient loadings. This lack of consistency has
resulted from a scarcity of information on how to
measure, monitor, and evaluate the impacts of pathogens
and nutrients on water quality. New methods and
information are being developed to assist tribes, states,
and local governments in assessing and developing
appropriate management strategies to control these
pollutants. EPA is developing recommendations for
improved methods to measure and document human
health risks due to exposure to the most common
pathogens and differing concentrations of these
pathogens. A thorough discussion is available in the
draft Implementation Guidance for Ambient Water Quality
Criteria for Bacteria-1986.(15) EPA is also developing
a series of Nutrient Criteria Technical Guidance
Manuals(l6> (17> (18> for various water body types, such
as rivers and streams. The intent of these documents
is to provide states and tribes with methods to assess
waterbody nutrient impairment, select criteria, design
monitoring programs, and implement management
practices. These factors should be considered during the
siting, design, and operation of onsite and decentralized
wastewater treatment systems.
Source Water Assessment and Protection. The
1996 Amendments to the Safe Drinking Water Act
(SDWA) require states and tribes to implement Source
Water Assessment and Protection (SWAP) programs
that assess areas serving as sources of drinking water,
identify potential threats, and implement protection
efforts. The SWAP requires states to conduct source
water assessments for all their public water systems.
Assessments consist of delineating protection areas for
the source waters of public drinking water supplies,
identifying potential sources of contaminants within
these areas, determining the susceptibility of the water
supplies to contamination from these potential sources,
and making the results of the assessments available to
the public. Assessments for many water systems, such
as those in rural areas, are likely to inventory onsite and
clustered systems located in delineated source water
protection areas and identify some of them as priority
pollution threats. Communities are encouraged to
consider this emerging information from the assessments
as a factor in deciding what level of management
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APPENDIX B: RELATIONSHIP TO OTHER EPA WATER PROGRAMS
of onsite and clustered systems is necessary. Several
programs specifically address the protection of ground
water because it serves as the source of drinking water
for 95 percent of the nation's population in rural areas
and for half of the total U.S. population. EPA also
recommends the Management Guidelines as a tool in the
protection of drinking water sources.
Underground Injection Control (UIC) Program.
Certain onsite systems are regulated under the UIC
program. The UIC program was established by the SDWA
to protect current and future underground sources of
drinking water (USDWs) from contamination caused by
subsurface disposal of wastes. EPA groups underground
injection into five classes (Classes IV), from deep
to shallow. Class V wells include typically shallow,
percolating systems, such as dry wells, leach fields, and
similar types of drainage wells that overlie USDWs.
Under the existing federal regulations, most Class
V injection wells are authorized by rule provided they
meet certain reporting requirements (e.g., submit
inventory information) and do not endanger USDWs.
EPA recognizes that state, tribal, and local governments
commonly regulate onsite systems of varying sizes.
Regardless, the UIC program is responsible for ensuring
that these entities meet UIC program requirements
when regulating large-capacity septic systems (those
that accept solely sanitary waste and have the capacity
to serve 20 or more people per day). Onsite wastewater
treatment systems may also be regulated under the UIC
program by an authorized state, tribe, or EPA if they
accept industrial, chemical, or other non-sanitary wastes,
also called "industrial drainage wells" or "agricultural
drainage wells."
In 1999 the UIC program undertook two efforts
relevant to large-capacity septic systems. First, the
program promulgated regulations prohibiting the
construction of new large-capacity cesspools and
ordered all existing large-capacity cesspools to be closed
by April 5, 2005. Second, the program completed a
comprehensive study of shallow injection wells, including
septic systems, that are regulated under the UIC
program.'19' EPA found that although the prevalence
of contamination cases appears low relative to the
prevalence of these systems, there are documented
examples that implicate these large systems as sources
of ground water contamination, and they are being
addressed locally.
On June 7, 2002 (67 FR 39583), EPA announced
a final determination for all subclasses of Class V wells
(such as large-capacity septic systems) not included
in the December 7, 1999, final UIC rule. The Agency
determined that additional federal requirements
are not needed at this time and that existing federal
underground injection control regulations are adequate
to prevent Class V wells from endangering USDWs. This
determination is based on the actions EPA is taking to
improve the performance of onsite and clustered systems
through the development of the Management Guidelines.
Coastal Zone Managment Act/Coastal Zone
Act Reauthorization Amendments of 1990 (CZMA/
CZARA). EPA and the National Oceanic and
Atmospheric Administration (NOAA) jointly administer
Section 6217 of the CZMA/CZARA. This provision
requires the 29 states with approved Coastal Zone
Management Programs to establish and implement
Coastal Nonpoint Pollution Control Programs. These
programs must include management measures for both
new and operating onsite sewage dispersal systems
(OSDS). The measures are described in EPA's Guidance
Specifying Management Measures for Sources of Nonpoint
Pollution in Coastal Waters(20>. The measure for new OSDS
specifies that they be designed, installed, and operated
properly and be situated at safe distances from sensitive
resources, including wetlands and floodplains. Protective
separation between the bottom of the infiltration system
and ground water tables is to be established, and OSDS
are to be designed to reduce nitrogen loadings in areas
where surface waters might be adversely affected. The
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APPENDIX B: RELATIONSHIP TO OTHER EPA WATER PROGRAMS
measure for operating OSDS requires operation and
maintenance to prevent surface water discharge and
reduce loadings to ground water, as well as inspection
at regular time intervals and repair or replacement of
faulty systems. The OSDS measures described above are
consistent with many of the concepts described in the
Management Guidelines.
Nonpoint Source Program. Congress established
the national nonpoint source program in 1987 when
it amended the Clean Water Act with Section 319.
States were required to conduct nonpoint source
assessments and develop EPA-approved "Nonpoint
Source Management Programs." All states and territories
and, as of September 2001, more than 70 tribes
(representing over 70 percent of Indian lands) now
have EPA-approved nonpoint source assessments and
management programs. Typical categories of nonpoint
sources identified and addressed in the state, territorial,
and tribal assessments and management plans include
agriculture, urban, onsite disposal systems, forestry,
and hydromodification. In some states the primary
responsibility for managing onsite and clustered systems
falls within the purview of the nonpoint source program.
Congress provides funding to assist the states,
territories, and tribes in developing and implementing
their nonpoint source management programs. These
funds can be used by states, territories, and tribes
to address sources identified in their management
program submissions. States, territories, and tribes can
use these funds to promote, demonstrate, and fund
activities relating to onsite and clustered management
programs, including monitoring, program assessments
and development, demonstration projects, research,
public education and outreach, and system replacement
or rehabilitation. The voluntary Management Guidelines
are intended to support the achievement of the goals of
the state, territorial, and tribal programs as they relate to
onsite and clustered program management.
Technology Transfer. EPA recently published the
Onsite Wastewater Treatment Systems Manual(21) (Onsite
Manual) to provide new information on alternative
treatment technologies and to promote a performance-
based approach to onsite and clustered wastewater
system management. This document is an update of
EPA's 1980 Design Manual - Onsite Wastewater Treatment
and Disposal Systems(22). The Onsite Manual serves as the
technical complement to the Management Guidelines
and as a reference to identify the environmental,
technological, administrative, and public health factors
to consider when developing an improved management
program. The Onsite Manual contains information
that program managers can use in assessing the
environmental impacts of specific onsite and clustered
wastewater treatment technologies on both the
watershed and individual site levels and in the selection
of appropriate technologies.
Voluntary National Guidelines for Management of Onsite and Clustered (Decentralized) Wastewater Treatment Systems
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NOTES
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NOTES
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United States
Environmental Protection
Agency
Additional copies of this document, (EPA 832-B-03-001),
can be obtained from:
U.S. EPA Publications Clearinghouse
PO. Box 42419
Cincinnati, OH 45242
Telephone: 800-490-9198
Fax:513-489-8695
EPA 832-B-03-001
March 2003
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