Current through Register Vol. 41, No. 3, September 23, 2024
A. The
permittee shall develop and submit to the department an operations and
maintenance manual in accordance with
9VAC25-740-120
B 3 f for each reclamation system, SRS, or combination of these facilities
covered by the same permit. The permittee shall maintain the manual and any
changes in the practices and procedures followed by the permittee shall be
documented and submitted to the department within 90 days of the effective date
of the changes.
B. For each
reclaimed water distribution system, the permittee shall develop an operations
and maintenance manual to be made available at a location central to the
system. The permittee shall maintain the manual and include any changes in the
practices and procedures followed by the permittee in the manual. The
operations and maintenance manual for a reclaimed water distribution system may
be included in the operations and maintenance manual described in subsection A
of this section where the reclaimed water distribution system and a reclamation
system or SRS, or all these facilities are covered by the same
permit.
C. For a reclamation system
authorized under the permit of a wastewater treatment works that provides flow
to the reclamation system, the operations and maintenance manual of the
reclamation system may be made a part of the operations and maintenance manual
for the wastewater treatment works.
D. The operations and maintenance manual is a
set of detailed instructions developed to facilitate the operator's
understanding of operational constraints and maintenance requirements for the
reclamation system, SRS, or reclaimed water distribution system; and the
monitoring and reporting requirements specified in the permit issued for each
system. The scope and content of the manual will be determined by the
complexity of the system or systems described by the manual.
1. For a reclamation system or SRS, the
operations and maintenance manual shall, at a minimum, contain the following:
a. A description of unit treatment processes
within the reclamation system or SRS and step-by-step instructions for the
operation of these processes;
b.
Routine maintenance and schedules of maintenance for each unit treatment
process in the system;
c. The
criteria used to make continuous determinations of the acceptability of the
reclaimed water being produced and shall include set points for parameters
measured by continuous on-line monitoring equipment;
d. Descriptions of sampling and monitoring
procedures and record keeping that comply with the requirements of this chapter
and any applicable permit conditions;
e. The physical steps and procedures to be
followed by the operator when substandard water is being produced, including
resampling and operational review in accordance with
9VAC25-740-70
C;
f. The physical steps and
procedures to be followed by the operator when the treatment works returns to
normal operation and acceptable quality reclaimed water is again being
produced;
g. Procedures to be
followed during a period when an operator is not present at the treatment
works;
h. Information necessary for
the proper management of sludge or residuals from reclamation treatment that is
not specifically requested in the application for a VPDES or VPA permit;
and
i. A contingency plan to
eliminate or minimize the potential for untreated or inadequately treated water
to be delivered to reuse areas. The plan shall, as applicable, reference and
coordinate with the education and notification program specified in
9VAC25-740-170
A for any release of untreated or inadequately treated water to the reclaimed
water distribution system.
2. For a reclaimed water distribution system,
the operations and maintenance manual shall, at a minimum, contain the
following:
a. A map of the distribution
system, a description of all components within the distribution system, and
step-by-step instructions for the operation of specific mechanical
components;
b. Routine and
unplanned inspection of the distribution system, including required inspections
for the cross-connection and backflow prevention program as specified in
9VAC25-740-100
C 1 g;
c. Routine maintenance and
schedules of maintenance for all components of the distribution system.
Maintenance shall include, but is not be limited to, initial and routine
flushing of the distribution system, measures to prevent or minimize corrosion,
fouling and clogging of distribution lines; and detection and repair of broken
distribution lines, flow meters or pumping equipment; and
d. Procedures to:
(1) Handle and dispose of any wastes
generated by maintenance of the distribution system in a manner protective of
the environment;
(2) Prevent the
discharge of reclaimed or flush water from distribution system maintenance
activities to:
(a) Storm drains;
(b) State waters unless otherwise authorized
by the department; and
(c) Sanitary
sewers unless allowed under local sewer use ordinances and authorized by the
department; and
(3)
Collect and, as applicable, retreat reclaimed water or treat flush water from
distribution system maintenance activities for a subsequent reuse or use
approved by the department.
E. The permittee shall review and revise the
operations and maintenance manual, as needed and appropriate, to ensure that
the manual contains procedures and criteria addressing the requirements of
subsection D of this section for satisfactory system performance. Any revision
to the manual shall be reviewed and approved by the department.
F. The permittee of a reclamation system,
SRS, or reclaimed water distribution system shall be responsible for making the
facility protective of the environment and public health at all times,
including periods of inactivation or closure. Included in the operations and
maintenance manual for the reclamation system, SRS, or reclaimed water
distribution system, the permittee shall submit a plan for inactivation or
closure of the facility, specifying what steps will be taken to protect the
environment and public health.
G.
Where a bulk irrigation reuse site is under common ownership or management with
a reclamation system or SRS that generates reclaimed water applied to the site,
the operations and maintenance manual for the reclamation system or SRS shall
include the following:
1. Measurements and
calculations used to determine supplemental irrigation rates of reclaimed water
for the irrigation reuse sites;
2.
Operating procedures of the irrigation system;
3. Routine maintenance required for the
continued design performance of the irrigation system and reuse
sites;
4. Identification and
routine maintenance of reclaimed water storage facilities dedicated to bulk
irrigation reuse;
5. Schedules for
harvesting and crop removal at the irrigation reuse sites;
6. An inventory of spare parts to be
maintained for the irrigation system; and
7. Any other information essential to the
operation of the irrigation system and reuse sites in accordance with the
requirements of this chapter.
Statutory Authority: § 62.1-44.15 of the Code of
Virginia.
